/* ============================================================
   system.css — CHAART OS Design System 전용 스타일
   소스: inspire.html Lines 240-334, 451-754, 755-3844
   생성: 2026-02-16
   ============================================================ */

/* ══════════════════════════════════
   Hero — GTE Style Full-Width
══════════════════════════════════ */
.inspire-hero {
  position: relative;
  padding: 180px var(--content-px) 120px;
  text-align: center;
  overflow: hidden;
}
.inspire-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 900px 600px at 30% 0%, rgba(150,30,35,0.07), transparent 60%),
    radial-gradient(ellipse 600px 500px at 70% 80%, rgba(245,242,238,0.5), transparent 50%);
  pointer-events: none;
  z-index: 0;
}
.inspire-hero-label {
  position: relative;
  z-index: 1;
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.inspire-hero-title {
  position: relative;
  z-index: 1;
  font-family: var(--serif);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--charcoal);
  max-width: 800px;
  margin: 0 auto 24px;
}
.inspire-hero-title .accent {
  color: var(--red-brand);
}
.inspire-hero-sub {
  position: relative;
  z-index: 1;
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 48px;
  line-height: 1.7;
}
.inspire-hero-scroll {
  position: relative;
  z-index: 1;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.inspire-hero-scroll .arrow {
  width: 1px;
  height: 32px;
  background: var(--text-muted);
  position: relative;
  animation: scrollPulse 2s var(--ease) infinite;
}
.inspire-hero-scroll .arrow::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: -3px;
  width: 7px;
  height: 7px;
  border-right: 1px solid var(--text-muted);
  border-bottom: 1px solid var(--text-muted);
  transform: rotate(45deg);
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(6px); }
}
/* 다크 테마 히어로 */
body[data-theme="charcoal"] .inspire-hero::before {
  background:
    radial-gradient(ellipse 900px 600px at 30% 0%, rgba(150,30,35,0.12), transparent 60%),
    radial-gradient(ellipse 600px 500px at 70% 80%, rgba(22,22,22,0.6), transparent 50%);
}

/* ══════════════════════════════════
   Ticker — Financial Terminal
══════════════════════════════════ */
.ticker {
  border-top: none;
  border-bottom: none;
  padding: 0;
  overflow: hidden;
  position: relative;
  z-index: 1;
  opacity: 1;
  background: var(--bg);
}
.ticker::after {
  content: "";
  position: absolute;
  bottom: -20px;
  left: 0;
  right: 0;
  height: 20px;
  background: linear-gradient(to bottom, var(--bg), transparent);
  pointer-events: none;
  z-index: 2;
}
.ticker-track {
  display: flex;
  white-space: nowrap;
  animation: tickerScroll 32s linear infinite;
}
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 28px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-caption);
  border-right: 1px solid var(--border-strong);
}
.ticker-item .val {
  font-weight: 600;
  color: var(--text);
  margin-left: 2px;
}
.ticker-item .up {
  color: var(--red-brand);
  font-weight: 700;
}
.ticker-item .down {
  color: #2E7D32;
  font-weight: 700;
}
.ticker-item .badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  background: var(--red-brand);
  color: var(--white);
  line-height: 1;
}
.ticker-item .badge-muted {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  background: var(--charcoal);
  color: var(--bg);
  line-height: 1;
}
.ticker-item .live-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--red-brand);
  border-radius: 50%;
  animation: livePulse 2s ease-in-out infinite;
}
@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
@keyframes tickerScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
/* ══════════════════════════════════
   Overview Intro Section
══════════════════════════════════ */
.overview-intro {
  margin: 0 0 160px;
  padding: 120px var(--content-px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--warm-bg), var(--bg));
  position: relative;
  z-index: 1;
}
.overview-intro-inner {
  max-width: var(--content-max);
  margin: 0 auto;
}
.overview-intro-lead {
  margin-bottom: 72px;
}
.overview-intro-label {
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.overview-intro-title {
  font-size: clamp(34px, 5.2vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin: 0 0 24px;
}
.overview-intro-sub {
  max-width: 640px;
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--text-secondary);
}
.overview-intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.overview-intro-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  padding: 24px;
  min-height: 220px;
}
.overview-intro-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 0;
  margin-bottom: 18px;
  background: linear-gradient(135deg, var(--red-brand), var(--charcoal));
}
.overview-intro-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text);
  margin: 0 0 10px;
}
.overview-intro-card-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--text-secondary);
}
.overview-intro-meta {
  margin-top: 56px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  padding: 24px;
}
.overview-intro-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}
.overview-intro-meta-right {
  text-align: right;
}
.overview-intro-meta-label {
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.overview-intro-meta-value {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text);
}
.overview-intro-meta-help {
  margin-top: 4px;
  font-size: var(--text-xs);
  color: var(--text-secondary);
}
@media (max-width: 1024px) {
  .overview-intro {
    padding: 96px 32px;
    margin-bottom: 128px;
  }
  .overview-intro-grid {
    grid-template-columns: 1fr;
  }
  .overview-intro-card {
    min-height: 0;
  }
}
@media (max-width: 720px) {
  .overview-intro {
    padding: 84px var(--content-px-mobile);
    margin-bottom: 96px;
  }
  .overview-intro-lead {
    margin-bottom: 48px;
  }
  .overview-intro-meta {
    margin-top: 40px;
    padding: 20px;
  }
  .overview-intro-meta-right {
    text-align: left;
  }
}

/* ══════════════════════════════════
   3축 OKR 섹션
══════════════════════════════════ */
.pillars {
  padding: 48px 0 80px;
  position: relative;
  z-index: 1;
}
.pillars-header {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) 64px;
}
.pillars-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.pillars-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 56px);
  color: var(--charcoal);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.pillars-title .accent {
  color: var(--red-brand);
}
.pillars-grid {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  align-items: start;
}
/* ── 카드 ── */
.pillar-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: var(--card-py) var(--card-px) var(--card-px);
  position: relative;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
  opacity: 0;
  transform: translateY(24px);
}
.pillar-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease),
              box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.pillar-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
  border-color: rgba(17,17,17,0.16);
}
.pillar-card.visible:hover {
  transform: translateY(-2px);
}
.pillar-num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  color: var(--red-brand);
  margin-bottom: 24px;
}
.pillar-name {
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(24px, 2.8vw, 32px);
  color: var(--charcoal);
  margin-bottom: 8px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.pillar-line {
  width: 20px;
  height: 1.5px;
  background: var(--red-brand);
  margin: 16px 0;
}
.pillar-desc {
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 32px;
  min-height: 48px;
}
.pillar-metrics {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.metric-val {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  font-weight: 700;
  color: var(--red-brand);
  letter-spacing: -0.02em;
  line-height: 1;
}
.metric-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 4px;
}
.pillar-owner {
  font-family: var(--sans);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--text-caption);
  margin-bottom: 24px;
}
/* ── 펼치기 토글 ── */
.pillar-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px 0;
  transition: opacity var(--dur-hover) var(--ease);
}
.pillar-toggle:hover {
  color: var(--text-secondary);
}
.pillar-toggle .arrow {
  display: inline-block;
  transition: transform 0.5s var(--ease);
  font-size: var(--text-13);
}
.pillar-card.open .pillar-toggle .arrow {
  transform: rotate(180deg);
}
/* ── 펼침 콘텐츠 ── */
.pillar-detail {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease);
}
.pillar-card.open .pillar-detail {
  grid-template-rows: 1fr;
}
.pillar-detail-inner {
  overflow: hidden;
}
.pillar-detail-content {
  padding-top: 24px;
}
.timeline-row {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.pillar-card.open .timeline-row {
  opacity: 1;
  transform: translateY(0);
}
.pillar-card.open .timeline-row:nth-child(1) { transition-delay: 0.1s; }
.pillar-card.open .timeline-row:nth-child(2) { transition-delay: 0.2s; }
.pillar-card.open .timeline-row:nth-child(3) { transition-delay: 0.3s; }
.timeline-row:last-child {
  border-bottom: none;
}
.timeline-month {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--red-brand);
  letter-spacing: 0.08em;
  min-width: 36px;
  flex-shrink: 0;
}
.timeline-text {
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ══════════════════════════════════════
   SECTION DARK — 다크/라이트 교차
   ══════════════════════════════════════ */
.section-dark {
  /* ⚠ 의도적 재선언 — CSS Custom Property 범위(scope) 제한:
     body[data-theme="charcoal"]은 :root 레벨 오버라이드라
     섹션 단위 다크 전환에 쓸 수 없음. 값은 tokens.css:285-315 와 동기화 필수.
     마지막 동기화: 2026-02-21 */
  background: var(--charcoal);
  color: var(--white);
  --text: #F0F0F0;              /* tokens.css:290 */
  --text-secondary: #A5A5A5;   /* tokens.css:291 */
  --text-muted: #6B6B6B;       /* tokens.css:292 */
  --text-caption: #888888;     /* tokens.css:293 */
  --text-inverse: #111111;     /* tokens.css:294 */
  --charcoal: #F0F0F0;         /* tokens.css:295 */
  --border: rgba(255,255,255,0.07);    /* tokens.css:296 */
  --border-strong: rgba(255,255,255,0.13); /* tokens.css:297 */
  --alpha-4: rgba(255,255,255,0.04);   /* tokens.css:298 */
  --alpha-6: rgba(255,255,255,0.06);   /* tokens.css:299 */
  --alpha-8: rgba(255,255,255,0.08);   /* tokens.css:300 */
  --alpha-12: rgba(255,255,255,0.12);  /* tokens.css:301 */
  --alpha-16: rgba(255,255,255,0.18);  /* tokens.css:302 */
  --bg-card: #141414;          /* tokens.css:287 */
  --glass-bg: rgba(10,10,10,0.82); /* tokens.css:309 */
  padding: 1px 0; /* margin collapse 방지 */
  margin: var(--section-gap) 0 0;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  position: relative;
}
/* 다크 테마에서는 원래 배경 유지 */
body[data-theme="charcoal"] .section-dark {
  background: var(--black);
}
/* ══════════════════════════════════════
   BRAND PHILOSOPHY
   ══════════════════════════════════════ */
.brand-philosophy {
  padding: 120px 0 0;
}
/* ── 코어 인용 ── */
.bp-quote-wrap {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) 64px;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.bp-quote-wrap.visible {
  opacity: 1;
  transform: translateY(0);
}
.bp-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.bp-quote {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(36px, 5.5vw, 64px);
  color: var(--charcoal);
  line-height: 1.25;
  margin-bottom: 32px;
}
.bp-quote .red { color: var(--red-brand); }
.bp-quote-sub {
  font-family: var(--sans);
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
}
/* ── 세 가지 믿음 ── */
.bp-beliefs {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding-bottom: 120px;
  align-items: start;
}
.bp-belief {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: 40px 32px 32px;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease),
              box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.bp-belief.visible {
  opacity: 1;
  transform: translateY(0);
}
.bp-belief:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
  border-color: rgba(17,17,17,0.16);
}
.bp-belief.visible:hover {
  transform: translateY(-2px);
}
.bp-belief-num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  color: var(--red-brand);
  margin-bottom: 24px;
}
.bp-belief-line {
  width: 32px;
  height: 1px;
  background: var(--red-brand);
  margin-bottom: 20px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease-out-expo);
}
.bp-belief.visible .bp-belief-line {
  transform: scaleX(1);
}
.bp-belief-title {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 12px;
  line-height: 1.3;
}
.bp-belief-desc {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}
/* 믿음 카드: 펼침 토글 */
.bp-belief-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px 0;
  transition: opacity var(--dur-hover) var(--ease);
}
.bp-belief-toggle:hover { color: var(--text-secondary); }
.bp-belief-toggle .arrow {
  display: inline-block;
  transition: transform 0.5s var(--ease);
  font-size: var(--text-13);
}
.bp-belief.open .bp-belief-toggle .arrow {
  transform: rotate(180deg);
}
/* 믿음 카드: 펼침 콘텐츠 */
.bp-belief-detail {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease);
}
.bp-belief.open .bp-belief-detail {
  grid-template-rows: 1fr;
}
.bp-belief-detail-inner {
  overflow: hidden;
}
.bp-belief-detail-content {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}
.bp-belief-example-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.bp-belief-example {
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--text-secondary);
}
.bp-belief-example strong {
  color: var(--charcoal);
  font-weight: 500;
}
/* ── 플로어 구조 ── */
.bp-floors {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}
.bp-floors-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px);
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 56px;
}
.bp-floors-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 4px;
}
.bp-floor-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.bp-floor {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  align-items: baseline;
  padding: 20px 8px;
  margin: 0 -8px;
  border-bottom: 1px solid var(--border);
  border-left: 2px solid transparent;
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease),
              padding-left 0.4s var(--ease), border-color 0.4s var(--ease),
              background 0.4s var(--ease);
}
.bp-floor.visible {
  opacity: 1;
  transform: translateX(0);
}
.bp-floor:hover {
  padding-left: 16px;
  border-left-color: var(--red-brand);
  background: rgba(150, 30, 35, 0.02);
}
.bp-floor:hover .bp-floor-id {
  color: var(--red-brand);
}
.bp-floor:hover .bp-floor-name span {
  color: var(--charcoal);
}
.bp-floor:last-child { border-bottom: none; }
.bp-floor-id {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  transition: color 0.4s var(--ease);
}
.bp-floor-id.top { color: var(--red-brand); }
.bp-floor-name {
  font-family: var(--sans);
  font-size: var(--text-md);
  font-weight: 500;
  color: var(--charcoal);
}
.bp-floor-name span {
  font-weight: 400;
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-left: 16px;
  transition: color 0.4s var(--ease);
}
/* ── 톤 대비: 크로스페이드 ── */
.bp-tone {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 96px var(--content-px) 160px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.bp-tone.visible {
  opacity: 1;
  transform: translateY(0);
}
.bp-tone-section-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 48px;
}
/* 태그 레이어: 그리드 오버랩 */
.bp-tone-tags {
  display: grid;
  margin-bottom: 24px;
}
.bp-tone-tag {
  grid-area: 1 / 1;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: opacity 1s var(--ease);
}
.bp-tone-tag.tag-they {
  color: var(--text-muted);
}
.bp-tone-tag.tag-we {
  color: var(--red-brand);
  opacity: 0.7;
}
.bp-tone-tag.is-hidden { opacity: 0; }
/* 인용 레이어: 그리드 오버랩 */
.bp-tone-stage {
  display: grid;
  align-items: start;
}
.bp-tone-voice {
  grid-area: 1 / 1;
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
  max-width: 600px;
}
.bp-tone-voice.is-hidden {
  opacity: 0;
  transform: translateY(6px);
}
.bp-tone-voice-they {
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 24px);
  font-style: italic;
  line-height: 1.85;
  color: var(--text-muted);
}
.bp-tone-voice-we {
  font-family: var(--sans);
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 500;
  line-height: 1.85;
  color: var(--charcoal);
}
/* 좌측 액센트 라인 */
.bp-tone-accent {
  position: relative;
  padding-left: 24px;
}
.bp-tone-accent::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 2px; height: 100%;
  background: var(--border);
  transition: background 1s var(--ease);
}
.bp-tone.is-ours .bp-tone-accent::before {
  background: var(--red-brand);
}
/* ══════════════════════════════════════
   BRAND VISUAL LANGUAGE
   ══════════════════════════════════════ */
.brand-visual {
  padding: 160px 0 0;
  border-top: 1px solid var(--border);
}
.brand-visual-header {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) 64px;
}
.bv-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.bv-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 56px);
  color: var(--charcoal);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
/* ── 히어로 컬러: 레드 풀 블리드 ── */
.color-hero {
  background: var(--red-brand);
  background-image: linear-gradient(135deg, rgba(0,0,0,0.06) 0%, transparent 50%, rgba(255,255,255,0.04) 100%);
  padding: 80px var(--content-px);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  position: relative;
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.color-hero.visible {
  opacity: 1;
  transform: translateY(0);
}
.color-hero-inner {
  max-width: var(--content-max);
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
}
.color-hero-text {
  font-family: var(--serif);
  font-size: clamp(32px, 5vw, 60px);
  color: var(--white);
  line-height: 1.2;
  max-width: 600px;
}
.color-hero-meta {
  text-align: right;
  flex-shrink: 0;
}
.color-hero-name {
  font-family: var(--sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  margin-bottom: 4px;
}
.color-hero-hex {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-13);
  font-weight: 300;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.04em;
}
/* ── 서브 컬러 스트립 ── */
.color-sub {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
  margin-bottom: 48px;
}
.color-sub-block {
  padding: 36px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  min-height: 120px;
  opacity: 0;
  transition: opacity 0.8s var(--ease);
}
.color-sub-block.visible { opacity: 1; }
.color-sub-block {
  transition: opacity 0.8s var(--ease), transform 0.3s var(--ease);
}
.color-sub-block:hover {
  transform: translateY(-2px);
}
.color-sub-charcoal {
  background: var(--charcoal);
}
.color-sub-ivory {
  background: var(--bg);
  border: 1px solid var(--border-strong);
}
.color-sub-block .csb-name {
  font-family: var(--sans);
  font-size: var(--text-sm);
  font-weight: 500;
}
.color-sub-block .csb-hex {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 300;
  letter-spacing: 0.04em;
  opacity: 0.5;
}
.color-sub-charcoal .csb-name,
.color-sub-charcoal .csb-hex { color: var(--white); }
.color-sub-ivory .csb-name,
.color-sub-ivory .csb-hex { color: var(--charcoal); }
/* ── 타이포그래피 디피니션 ── */
.type-defs {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 96px var(--content-px) 120px;
}
.type-def {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  padding: 56px 16px;
  margin: 0 -16px;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease),
              background 0.5s var(--ease);
}
.type-def.visible {
  opacity: 1;
  transform: translateY(0);
}
.type-def:hover {
  background: rgba(17,17,17,0.012);
}
.type-def:first-child {
  border-top: 1px solid var(--border);
}
/* 왼쪽: 메타 */
.type-meta {}
.type-role {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.type-family-name {
  font-family: var(--sans);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--charcoal);
  margin-bottom: 12px;
}
.type-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
}
.type-weights {
  margin-top: 16px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
/* 오른쪽: 스페시먼 */
.type-specimen {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.type-specimen-main {
  font-size: clamp(28px, 3.5vw, 44px);
  color: var(--charcoal);
  line-height: 1.3;
  margin-bottom: 16px;
}
.type-specimen-main.is-serif { font-family: var(--serif); }
.type-specimen-main.is-sans { font-family: var(--sans); font-weight: 400; }
.type-specimen-main.is-mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-weight: 400;
  font-size: clamp(20px, 2.5vw, 30px);
  letter-spacing: -0.01em;
}
.type-specimen-sub {
  font-family: var(--sans);
  font-size: var(--text-base);
  color: var(--text-caption);
  line-height: 1.6;
}
/* ══════════════════════════════════════
   PRICE RAIL — 가격 시뮬레이션 슬라이더
   ══════════════════════════════════════ */
.price-rail-section {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) var(--section-gap);
  position: relative;
  z-index: 1;
}
.price-scout-box {
  border: 1px solid var(--charcoal);
  padding: 40px var(--card-px);
  background: var(--bg-card);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease),
              border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.price-scout-box.visible {
  opacity: 1;
  transform: translateY(0);
}
.ps-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 32px;
}
.ps-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.ps-value {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  color: var(--charcoal);
  letter-spacing: -0.02em;
  line-height: 1;
}
.ps-rail-container {
  position: relative;
  height: 44px;
  display: flex;
  align-items: center;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
}
.ps-track {
  width: 100%;
  height: 3px;
  background: var(--border-strong);
  position: absolute;
}
.ps-fill {
  position: absolute;
  left: 0;
  height: 3px;
  background: var(--red-brand);
  width: 0%;
  transition: none;
}
.ps-handle {
  position: absolute;
  left: 0%;
  width: 22px;
  height: 22px;
  background: var(--bg-card);
  border: 2px solid var(--charcoal);
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  transition: transform 0.12s var(--ease), background 0.2s, box-shadow 0.2s;
  z-index: 2;
}
.ps-handle:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,0.18);
}
.ps-handle:active,
.ps-handle.is-dragging {
  transform: translateX(-50%) scale(1.15);
  background: var(--charcoal);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
body[data-theme="charcoal"] .ps-handle:active,
body[data-theme="charcoal"] .ps-handle.is-dragging {
  background: #F2F2F2;
  border-color: var(--text);
}
.ps-ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.ps-tick-active {
  color: var(--red-brand);
  font-weight: 600;
}
/* ══════════════════════════════════════
   LIVE CHART — 라이브 데이터 캔버스
   ══════════════════════════════════════ */
.live-chart-section {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) var(--section-gap);
  position: relative;
  z-index: 1;
}
.chart-box {
  border: 1px solid var(--charcoal);
  background: var(--bg-card);
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease),
              border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.chart-box.visible {
  opacity: 1;
  transform: translateY(0);
}
.chart-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--card-px);
  border-bottom: 1px solid var(--border);
}
.chart-meta .mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.chart-meta .red {
  color: var(--red-brand);
}
.chart-meta .red::after {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--red-brand);
  border-radius: 50%;
  margin-left: 6px;
  animation: livePulse 2s ease-in-out infinite;
  vertical-align: middle;
}
.chart-canvas-wrap {
  padding: 24px var(--card-px) var(--card-px);
}
#liveChart {
  display: block;
  width: 100%;
  height: 200px;
}
/* ══════════════════════════════════════
   PROTOCOL MODULES — I/O 다이어그램
   ══════════════════════════════════════ */
.protocol-section {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) var(--section-gap);
  position: relative;
  z-index: 1;
}
.protocol-header {
  margin-bottom: 48px;
}
.protocol-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.protocol-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 36px);
  color: var(--charcoal);
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.protocol-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
/* ── 개별 모듈 카드 ── */
.proto-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease),
              box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
  overflow: hidden;
}
.proto-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.proto-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
  border-color: rgba(17,17,17,0.16);
}
.proto-card.visible:hover {
  transform: translateY(-2px);
}
/* 카드 상단: 모듈 ID + 상태 */
.proto-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}
.proto-id {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.proto-status {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  line-height: 1;
}
.proto-status--active {
  background: var(--red-brand);
  color: var(--white);
}
.proto-status--ready {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.14);
}
.proto-status--pending {
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
}
/* 카드 본문 */
.proto-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.proto-card-name {
  font-family: var(--sans);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--charcoal);
  letter-spacing: -0.01em;
}
.proto-card-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
}
/* I/O 다이어그램 플로우 */
.proto-flow {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: auto;
}
.proto-flow-node {
  flex: 1;
  text-align: center;
  padding: 10px 6px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--text-caption);
  text-transform: uppercase;
  transition: background 0.3s var(--ease), color 0.3s var(--ease),
              border-color 0.3s var(--ease);
}
.proto-flow-node--input {
  border-color: var(--text-muted);
}
.proto-flow-node--process {
  background: rgba(255,255,255,0.10);
  color: #F2F2F2;
  border-color: rgba(255,255,255,0.14);
  font-weight: 600;
}
.proto-flow-node--output {
  border-color: var(--red-brand);
  color: var(--red-brand);
  font-weight: 600;
}
.proto-flow-arrow {
  flex-shrink: 0;
  width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: var(--text-xs);
}
/* 카드 하단: 메트릭 바 */
.proto-card-footer {
  padding: 12px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.proto-metric {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.proto-metric-val {
  font-weight: 700;
  color: var(--charcoal);
  margin-left: 4px;
}
.proto-metric-val--red {
  color: var(--red-brand);
}
/* ══════════════════════════════════════
   DESIGN SYSTEM LAB — 살아있는 가이드
   ══════════════════════════════════════ */
.ds-lab {
  border-top: 1px solid var(--charcoal);
  padding: var(--section-gap) 0 160px;
  position: relative;
  z-index: 1;
}
.ds-lab-header {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) 64px;
}
.ds-lab-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.ds-lab-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(26px, 3.5vw, 40px);
  color: var(--charcoal);
  line-height: 1.3;
}
.ds-lab-title--display {
  font-size: clamp(32px, 5vw, 56px);
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.ds-lab-subtitle {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-top: 12px;
  line-height: 1.7;
}
/* ── 모듈 컨테이너 ── */
.ds-module {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px);
  margin-bottom: 80px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.ds-module.visible {
  opacity: 1;
  transform: translateY(0);
}
.ds-module-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red-brand);
  font-weight: 600;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
/* ── 01: Token Visualizer ── */
.ds-color-grid {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.ds-color-chip {
  width: 120px;
  cursor: pointer;
  transition: transform var(--dur-normal) var(--ease);
}
.ds-color-chip:hover { transform: translateY(-2px); }
.ds-color-chip:active { transform: translateY(0) scale(0.98); }
.ds-color-swatch {
  width: 100%;
  height: 64px;
  border: 1px solid var(--border-strong);
  margin-bottom: 8px;
  position: relative;
  overflow: hidden;
}
.ds-color-swatch::after {
  content: 'COPY';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--white);
  background: rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity var(--dur-normal);
}
.ds-color-chip:hover .ds-color-swatch::after { opacity: 1; }
.ds-color-name {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--text-caption);
}
.ds-color-hex {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: 2px;
}
/* 타이포 샘플 */
.ds-type-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.ds-type-role {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.ds-type-sample-serif {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--charcoal);
  line-height: 1.3;
}
.ds-type-sample-sans {
  font-family: var(--sans);
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
}
.ds-type-sample-mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-13);
  color: var(--charcoal);
  letter-spacing: 0.02em;
}
/* 스페이싱 */
.ds-spacing-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}
.ds-spacing-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-muted);
  width: 48px;
  text-align: right;
  flex-shrink: 0;
}
.ds-spacing-block {
  height: 24px;
  background: var(--red-brand);
  opacity: 0.12;
  transition: opacity 0.3s;
}
.ds-spacing-row:hover .ds-spacing-block { opacity: 0.3; }
/* ── 02: Component Playground ── */
.ds-comp-group {
  margin-bottom: 32px;
}
.ds-comp-group-title {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-caption);
  margin-bottom: 16px;
}
.ds-btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
/* 버튼 시스템 */
.ds-btn {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 10px 24px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--dur-normal) var(--ease);
  position: relative;
  overflow: hidden;
}
.ds-btn--primary {
  background: var(--red-brand);
  color: var(--white);
  border-color: var(--red-brand);
}
.ds-btn--primary:hover {
  background: #7A181C;
  box-shadow: 0 2px 12px rgba(150,30,35,0.2);
}
.ds-btn--primary:active { transform: scale(0.97); }
.ds-btn--secondary {
  background: var(--charcoal);
  color: var(--bg);
  border-color: var(--charcoal);
}
.ds-btn--secondary:hover {
  background: var(--charcoal-hover);
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.ds-btn--secondary:active { transform: scale(0.97); }
.ds-btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-strong);
}
.ds-btn--ghost:hover {
  border-color: var(--charcoal);
  color: var(--charcoal);
}
.ds-btn--ghost:active { transform: scale(0.97); }
.ds-btn--disabled {
  background: var(--border);
  color: var(--text-muted);
  border-color: var(--border);
  cursor: not-allowed;
  opacity: 0.6;
}
/* 인풋 */
.ds-input-demo {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.ds-input {
  font-family: var(--sans);
  font-size: var(--text-base);
  padding: 10px 16px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--text);
  width: 280px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  outline: none;
}
.ds-input:focus {
  border-color: var(--charcoal);
  box-shadow: 0 0 0 1px var(--charcoal);
}
.ds-input::placeholder {
  color: var(--text-muted);
}
/* 배지 */
.ds-badge-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.ds-badge {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  line-height: 1;
}
.ds-badge--available { background: var(--red-brand); color: var(--white); }
.ds-badge--sold { background: var(--charcoal); color: var(--bg); }
.ds-badge--vip { background: #C9A94E; color: var(--white); }
.ds-badge--pending {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
}
.ds-badge--new { background: #2E7D32; color: var(--white); }
/* ── 03: Pattern Lab ── */
.ds-pattern-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
/* 매물 카드 */
.ds-artwork-card {
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
  cursor: pointer;
}
.ds-artwork-card:hover {
  border-color: rgba(17,17,17,0.25);
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}
.ds-artwork-img {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #e8e4df 0%, #d4cfc7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.ds-artwork-body {
  padding: 20px;
}
.ds-artwork-artist {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.ds-artwork-title {
  font-family: var(--sans);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 8px;
}
.ds-artwork-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.ds-artwork-price {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--red-brand);
}
.ds-artwork-size {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
/* 알림 리스트 */
.ds-notif-list {
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
}
.ds-notif-row {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s var(--ease), padding-left 0.3s var(--ease);
  cursor: pointer;
}
.ds-notif-row:last-child { border-bottom: none; }
.ds-notif-row:hover {
  background: rgba(150,30,35,0.015);
  padding-left: 28px;
}
.ds-notif-icon {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  flex-shrink: 0;
}
.ds-notif-content {}
.ds-notif-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--charcoal);
  margin-bottom: 2px;
}
.ds-notif-desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.ds-notif-time {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-muted);
  white-space: nowrap;
}
/* ── 04: Motion Demo ── */
.ds-motion-stage {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ds-motion-box {
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  padding: 32px 24px;
  text-align: center;
}
.ds-motion-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.ds-motion-track {
  position: relative;
  height: 4px;
  background: var(--border);
  margin-bottom: 16px;
}
.ds-motion-ball {
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--red-brand);
  border-radius: 50%;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
.ds-motion-box:hover .ds-motion-ball {
  left: calc(100% - 16px);
}
.ds-motion-ball--ease {
  transition: left 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.ds-motion-ball--linear {
  transition: left 1s linear;
}
.ds-motion-ball--bounce {
  transition: left 1s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ds-motion-easing {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 10px;
  color: var(--text-caption);
  word-break: break-all;
}
/* ── 스케일 데모 ── */
.ds-scale-demo {
  display: flex;
  gap: 20px;
  margin-top: 32px;
}
.ds-scale-card {
  flex: 1;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.ds-scale-card:hover {
  transform: scale(1.04);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}
.ds-scale-card:active {
  transform: scale(0.97);
}
.ds-scale-icon {
  font-size: 28px;
  margin-bottom: 8px;
}
.ds-scale-text {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
/* ── Interaction Patterns 데모용 스타일 ── */
.ip-hover-card:hover {
  border-radius: var(--radius-hover);
  box-shadow: var(--shadow-sm);
  background: var(--warm-bg);
}
.ip-dur-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
/* Keyframes for IP section demos (dealer.css에만 있는 것 복제) */
@keyframes motionSlide {
  0%   { transform: translateX(0); }
  50%  { transform: translateX(calc(100% - 14px)); }
  100% { transform: translateX(0); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes badgeBreath {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.82; transform: scale(1.03); }
}
@keyframes online-pulse {
  0%, 100% { box-shadow: 0 0 3px rgba(34,197,94,0.4); }
  50% { box-shadow: 0 0 10px rgba(34,197,94,0.8); }
}
@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── 토스트 ── */
.ds-toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  background: var(--charcoal);
  color: var(--bg);
  padding: 10px 24px;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  pointer-events: none;
}
.ds-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
/* ── Copy Snippet 버튼 ── */
.ds-snippet-wrap {
  position: relative;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  padding: 16px 20px;
  margin-top: 12px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-x: auto;
}
.ds-snippet-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--dur-normal) var(--ease);
}
.ds-snippet-copy:hover {
  border-color: var(--charcoal);
  color: var(--charcoal);
}
.ds-snippet-copy.is-copied {
  border-color: var(--red-brand);
  color: var(--red-brand);
}
/* ── Foundations: Radius & Elevation ── */
.ds-radius-row {
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
}
.ds-radius-item {
  text-align: center;
}
.ds-radius-box {
  width: 64px;
  height: 64px;
  border: 1px solid var(--charcoal);
  margin-bottom: 8px;
}
.ds-radius-val {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.ds-elevation-row {
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
}
.ds-elevation-box {
  width: 120px;
  height: 80px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
/* ── Dark System Tokens ── */
.ds-dark-tokens { padding: 32px 0; }
.ds-dark-row {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.ds-dark-chip {
  width: 140px;
  cursor: pointer;
  transition: transform var(--dur-normal) var(--ease);
}
.ds-dark-chip:hover { transform: translateY(-2px); }
.ds-dark-swatch {
  width: 100%;
  height: 64px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  position: relative;
  overflow: hidden;
}
.ds-dark-swatch::after {
  content: 'COPY';
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; font-weight: 700;
  color: var(--white); background: rgba(255,255,255,0.15); opacity: 0; transition: opacity var(--dur-normal);
}
.ds-dark-chip:hover .ds-dark-swatch::after { opacity: 1; }
.ds-dark-name {
  font-family: var(--mono); font-size: var(--text-xs); color: var(--text-caption);
  letter-spacing: 0.04em;
}
.ds-dark-val {
  font-family: var(--mono); font-size: var(--text-xs); color: var(--text-muted); margin-top: 2px;
}
/* Blur / Glass demo strip */
.ds-blur-strip {
  display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap;
}
.ds-blur-card {
  flex: 1; min-width: 160px;
  height: 80px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: var(--text-xs); color: #aaa;
  cursor: pointer;
  transition: transform var(--dur-normal) var(--ease);
}
.ds-blur-card:hover { transform: translateY(-2px); }
/* Dark section wrapper */
.ds-dark-section-wrap {
  background: #080808;
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-top: 16px;
}
.ds-dark-section-wrap .ds-dark-name { color: #888; }
.ds-dark-section-wrap .ds-dark-val  { color: #555; }
.ds-dark-sub-label {
  font-family: var(--mono); font-size: var(--text-xs); font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: #666; margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.ds-blur-bg-pattern {
  position: relative;
  background: linear-gradient(135deg, var(--red-brand) 0%, #2A1A1B 40%, var(--text) 100%);
  border-radius: var(--radius-sm);
  padding: 24px; margin-bottom: 24px;
}
.ds-border-demo {
  width: 100%;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--text);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: var(--text-xs); color: #666;
  cursor: pointer;
  transition: transform var(--dur-normal) var(--ease);
}
.ds-border-demo:hover { transform: translateY(-2px); }

/* ── Data Display Rules ── */
.ds-data-rules { padding: 32px 0; }
.ds-data-rule {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 16px;
}
.ds-data-rule-title {
  font-family: var(--mono);
  font-size: var(--text-13);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red-brand);
  margin-bottom: 8px;
}
.ds-data-rule-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--text-secondary);
}
.ds-data-rule-desc code {
  font-family: var(--mono);
  font-size: var(--text-xs);
  background: rgba(17,17,17,0.05);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text);
}
.ds-data-rule-do, .ds-data-rule-dont {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 100px;
  margin-top: 12px;
  margin-right: 6px;
}
.ds-data-rule-do   { background: #E8F5E9; color: #2E7D32; }
.ds-data-rule-dont { background: #FFEBEE; color: #C62828; }
body[data-theme="charcoal"] .ds-data-rule { background: var(--bg-card); border-color: var(--border); }
body[data-theme="charcoal"] .ds-data-rule-desc code { background: rgba(255,255,255,0.08); color: var(--text); }
body[data-theme="charcoal"] .ds-data-rule-do   { background: rgba(46,125,50,0.15); color: #66BB6A; }
body[data-theme="charcoal"] .ds-data-rule-dont { background: rgba(198,40,40,0.15); color: #EF5350; }

/* Data Display Demo Table */
.ds-data-table-demo {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: var(--text-sm);
}
.ds-data-table-demo thead th {
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 12px 16px;
  border-bottom: 2px solid var(--border-strong);
  text-align: left;
}
.ds-data-table-demo thead th.num {
  text-align: right;
}
.ds-data-table-demo tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}
.ds-data-table-demo tbody td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.ds-data-table-demo tbody td .ds-badge-inline {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  letter-spacing: 0.02em;
}
.ds-badge-available { background: #E8F5E9; color: #2E7D32; }
.ds-badge-sold      { background: #FFEBEE; color: #C62828; }
.ds-badge-pending   { background: #FFF8E1; color: #F57F17; }
body[data-theme="charcoal"] .ds-badge-available { background: rgba(46,125,50,0.15); color: #66BB6A; }
body[data-theme="charcoal"] .ds-badge-sold      { background: rgba(198,40,40,0.15); color: #EF5350; }
body[data-theme="charcoal"] .ds-badge-pending   { background: rgba(245,127,23,0.15); color: #FFB74D; }
body[data-theme="charcoal"] .ds-data-table-demo thead th { color: #666; border-color: rgba(255,255,255,0.10); }
body[data-theme="charcoal"] .ds-data-table-demo tbody td { border-color: rgba(255,255,255,0.06); }

/* ── Contrast Rules ── */
.ds-contrast-rules { padding: 32px 0; }
.ds-contrast-rule {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
}
.ds-contrast-rule-badge {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.ds-contrast-rule-badge--aa   { background: #E8F5E9; color: #2E7D32; border: 2px solid #2E7D32; }
.ds-contrast-rule-badge--aaa  { background: #E3F2FD; color: #1565C0; border: 2px solid #1565C0; }
.ds-contrast-rule-badge--none { background: rgba(0,0,0,0.04); color: var(--text-muted); border: 2px dashed var(--border-strong); }
.ds-contrast-rule-body { flex: 1; }
.ds-contrast-rule-title {
  font-family: var(--mono);
  font-size: var(--text-13);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red-brand);
  margin-bottom: 8px;
}
.ds-contrast-rule-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--text-secondary);
}
.ds-contrast-rule-desc code {
  font-family: var(--mono);
  font-size: var(--text-xs);
  background: rgba(17,17,17,0.05);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text);
}
.ds-contrast-rule-tokens {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.ds-contrast-rule-tokens span {
  display: inline-block;
  font-family: var(--mono);
  font-size: var(--text-xs);
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(150,30,35,0.08);
  color: var(--red-brand);
}
body[data-theme="charcoal"] .ds-contrast-rule { background: var(--bg-card); border-color: var(--border); }
body[data-theme="charcoal"] .ds-contrast-rule-desc code { background: rgba(255,255,255,0.08); color: var(--text); }
body[data-theme="charcoal"] .ds-contrast-rule-badge--aa  { background: rgba(46,125,50,0.15); color: #66BB6A; border-color: #66BB6A; }
body[data-theme="charcoal"] .ds-contrast-rule-badge--aaa { background: rgba(21,101,192,0.15); color: #64B5F6; border-color: #64B5F6; }
body[data-theme="charcoal"] .ds-contrast-rule-badge--none { background: rgba(255,255,255,0.04); color: #666; border-color: rgba(255,255,255,0.14); }
body[data-theme="charcoal"] .ds-contrast-rule-tokens span { background: rgba(150,30,35,0.15); color: #ff8a8a; }

/* ── Theme x Density Matrix ── */
.ds-matrix-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}
.ds-matrix-cell {
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid;
  position: relative;
}
.ds-matrix-cell-label {
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid;
}
.ds-matrix-cell-preview {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.ds-matrix-btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  border-radius: 8px;
  border: none;
  letter-spacing: -0.01em;
}
.ds-matrix-badge {
  display: inline-block;
  font-weight: 600;
  border-radius: 100px;
  letter-spacing: 0.02em;
}
.ds-matrix-token-list {
  font-family: var(--mono);
  font-size: var(--text-xs);
  line-height: 1.8;
  margin-top: 12px;
}
.ds-matrix-token-list span { display: block; }
.ds-matrix-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  margin-right: 6px;
  vertical-align: middle;
}

/* ── Navigation Patterns ── */
.ds-nav-patterns-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}
.ds-nav-pattern-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s var(--ease);
}
.ds-nav-pattern-card:hover { border-color: var(--border-strong); }
.ds-nav-pattern-mockup {
  height: 200px;
  background: #080808;
  padding: 16px;
  position: relative;
  display: flex;
  overflow: hidden;
}
.ds-nav-pattern-info { padding: 24px; }
.ds-nav-pattern-title {
  font-family: var(--mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.ds-nav-pattern-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}
.ds-mock-sidebar {
  width: 56px;
  background: #161616;
  border-radius: 8px;
  padding: 10px 6px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}
.ds-mock-sidebar-item {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.12);
  border-radius: 3px;
}
.ds-mock-sidebar-item.active { background: var(--red-brand); }
.ds-mock-content {
  flex: 1;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ds-mock-content-line {
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
}
.ds-mock-rail {
  width: 32px;
  background: #161616;
  border-radius: 8px;
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.ds-mock-rail-icon {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  background: rgba(255,255,255,0.10);
}
.ds-mock-rail-icon.active { background: var(--red-brand); }
.ds-mock-context-panel {
  width: 100px;
  background: var(--text);
  border-radius: 8px;
  padding: 10px;
  margin-left: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}
.ds-mock-context-line {
  height: 5px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
}
.ds-mock-cmd-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 75%;
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 12px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
}
.ds-mock-cmd-input {
  width: 100%;
  height: 8px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  margin-bottom: 10px;
}
.ds-mock-cmd-result {
  height: 6px;
  background: rgba(255,255,255,0.04);
  border-radius: 3px;
  margin-bottom: 6px;
}
.ds-mock-cmd-result.highlight { background: rgba(150,30,35,0.3); }
body[data-theme="charcoal"] .ds-nav-pattern-mockup { background: #050505; }

/* ══════════════════════════════════
   TDS-Style Documentation Layout
══════════════════════════════════ */
.doc-layout {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  min-height: 80vh;
  border-top: 1px solid var(--border);
}
/* ── Left Sidebar ── */
.doc-sidebar {
  width: 240px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  padding: 40px 24px 40px 0;
  position: sticky;
  top: 80px;
  height: calc(100vh - 80px);
  overflow-y: auto;
}
.doc-nav-group { margin-bottom: 32px; }
.doc-nav-title {
  display: block;
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-left: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.doc-nav-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  font-family: var(--sans);
  font-size: var(--text-sm);
  color: var(--text);
  padding: 8px 12px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}
.doc-nav-item:hover {
  background: rgba(0,0,0,0.03);
  color: var(--text);
}
.doc-nav-item.is-active {
  background: rgba(150,30,35,0.06);
  color: var(--red-brand);
  font-weight: 600;
  border-left: 3px solid var(--red-brand);
  padding-left: 9px;
}
/* ── Main Content ── */
.doc-main {
  flex: 1;
  padding: 60px 0 120px 60px;
  max-width: 900px;
}
.doc-header { margin-bottom: 60px; }
.doc-title {
  font-family: var(--sans);
  font-size: 40px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.doc-desc {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.doc-section { margin-bottom: 60px; }
.doc-heading {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 24px;
}
/* ── Preview Box ── */
.doc-preview-box {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 60px;
  background: var(--bg-card);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  background-image: radial-gradient(var(--border) 1px, transparent 1px);
  background-size: 20px 20px;
}
/* ── Props Table ── */
.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  text-align: left;
}
.doc-table th {
  font-family: var(--mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  padding: 12px 16px 12px 0;
  font-weight: 600;
}
.doc-table td {
  padding: 16px 16px 16px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  line-height: 1.5;
  vertical-align: top;
}
.doc-table code {
  font-family: var(--mono);
  background: rgba(0,0,0,0.05);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--red-brand);
  font-size: var(--text-xs);
}
.doc-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: var(--text-xs);
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-caption);
}
/* ── Practical Guide (Components) ── */
.doc-practical-guide { margin-top: 28px; }
.doc-practical-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.doc-practical-card {
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: 12px;
  background: var(--bg-card);
  padding: 14px 16px;
}
.doc-practical-card--use { border-left-color: var(--color-success); }
.doc-practical-card--avoid { border-left-color: var(--color-danger); }
.doc-practical-card--qa { border-left-color: var(--color-info-alt); }
.doc-practical-card--props { border-left-color: var(--chaart-red); }
.doc-practical-title {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.doc-practical-list {
  margin: 10px 0 0;
  padding: 0 0 0 18px;
  display: grid;
  gap: 6px;
}
.doc-practical-list li {
  color: var(--text-secondary);
  font-size: var(--text-13);
  line-height: 1.55;
}
@media (max-width: 900px) {
  .doc-practical-grid { grid-template-columns: 1fr; }
}
/* Dark theme overrides */
body[data-theme="charcoal"] .doc-nav-item:hover { background: rgba(255,255,255,0.08); }
body[data-theme="charcoal"] .doc-nav-item.is-active { background: rgba(150,30,35,0.12); color: #ff8a8a; border-left-color: #ff8a8a; }
body[data-theme="charcoal"] .doc-preview-box { background-image: radial-gradient(var(--charcoal-hover) 1px, transparent 1px); }
body[data-theme="charcoal"] .doc-table code { background: rgba(255,255,255,0.1); color: #ff8a8a; }
body[data-theme="charcoal"] .doc-practical-card { background: rgba(255,255,255,0.04); }

/* ── Explorer scoped dark theme — preview box에 data-theme="charcoal"이 붙을 때
   CSS Custom Properties를 재정의해 프리뷰 내 컴포넌트가 다크 토큰을 사용하도록 함 ── */
.doc-preview-box[data-theme="charcoal"] {
  --bg:               #0c0e0e;
  --bg-card:          #141818;
  --bg-secondary:     #1a1f1f;
  --text:             #f0f2f0;
  --text-secondary:   #a8b0a8;
  --text-muted:       #6b736b;
  --text-caption:     #888e88;
  --text-inverse:     #111411;
  --border:           rgba(255,255,255,0.08);
  --border-strong:    rgba(255,255,255,0.14);
  --alpha-4:          rgba(255,255,255,0.04);
  --alpha-6:          rgba(255,255,255,0.06);
  --alpha-8:          rgba(255,255,255,0.08);
  --alpha-10:         rgba(255,255,255,0.10);
  --alpha-12:         rgba(255,255,255,0.12);
  --alpha-16:         rgba(255,255,255,0.16);
  --charcoal:         #f0f2f0;
  --charcoal-hover:   rgba(255,255,255,0.08);
  background: #0c0e0e;
  background-image: radial-gradient(rgba(255,255,255,0.07) 1px, transparent 1px);
  background-size: 20px 20px;
  border-color: rgba(255,255,255,0.10);
}

/* Paper theme scoped to preview box */
.doc-preview-box[data-theme="paper"] {
  --bg:               #f5f0e8;
  --bg-card:          #faf7f2;
  --bg-secondary:     #ede8df;
  --text:             #2c2520;
  --text-secondary:   #5c5248;
  --text-muted:       #8c8278;
  --border:           rgba(44,37,32,0.10);
  --border-strong:    rgba(44,37,32,0.16);
  --alpha-4:          rgba(44,37,32,0.04);
  --alpha-6:          rgba(44,37,32,0.06);
  background: #f5f0e8;
  background-image: radial-gradient(rgba(44,37,32,0.08) 1px, transparent 1px);
  background-size: 20px 20px;
  border-color: rgba(44,37,32,0.12);
}
/* ── Right TOC Navigator ── */
.doc-toc {
  width: 200px;
  flex-shrink: 0;
  align-self: flex-start;
  position: sticky;
  top: 100px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding: 16px 0 0 24px;
  border-left: 1px solid var(--border);
  display: none;
}
.doc-toc.is-visible { display: block; }
.doc-toc-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 12px;
}
.doc-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.doc-toc-link {
  display: block;
  font-size: var(--text-13);
  color: var(--text-secondary);
  text-decoration: none;
  padding: 4px 12px;
  border-left: 2px solid transparent;
  transition: all 0.15s;
  line-height: 1.4;
}
.doc-toc-link:hover { color: var(--text); }
.doc-toc-link.is-active {
  color: var(--red-brand);
  border-left-color: var(--red-brand);
  font-weight: 500;
}
body[data-theme="charcoal"] .doc-toc { border-left-color: rgba(255,255,255,0.1); }
body[data-theme="charcoal"] .doc-toc-link.is-active { color: #ff8a8a; border-left-color: #ff8a8a; }
@media (max-width: 1200px) {
  .doc-toc { display: none !important; }
}
/* ══════════════════════════════════
   Component Home Dashboard — Landing Pass
══════════════════════════════════ */
.comp-home {
  --comp-landing-accent: var(--red-brand);
  max-width: 1320px;
  margin: 0 auto;
  padding: 56px 40px 120px;
  position: relative;
  z-index: 1;
}
.comp-home::before,
.comp-home::after {
  content: "";
  position: absolute;
  top: 210px;
  bottom: 140px;
  width: 24px;
  pointer-events: none;
  opacity: 0.3;
  background: repeating-linear-gradient(
    to bottom,
    rgba(100,106,116,0) 0 18px,
    rgba(100,106,116,0.35) 18px 19px,
    rgba(100,106,116,0) 19px 36px
  );
}
.comp-home::before { left: 4px; }
.comp-home::after { right: 4px; }
.comp-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 10px 14px;
  margin-bottom: 20px;
  transition: color var(--dur-normal) var(--ease), border-color var(--dur-normal) var(--ease), background var(--dur-normal) var(--ease);
}
.comp-back-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--bg-card);
}
.comp-back-btn::before {
  content: '\2190';
  font-size: var(--text-xs);
}

.comp-home-header {
  position: relative;
  margin-bottom: 56px;
  padding: clamp(32px, 5vw, 64px);
  border: 1px solid #2c3333;
  background:
    radial-gradient(820px 380px at var(--mx, 50%) var(--my, 0%), rgba(150,30,35,0.11) 0%, rgba(150,30,35,0) 62%),
    linear-gradient(180deg, #0c0e0e 0%, #141919 100%);
  color: var(--white);
  overflow: hidden;
}
.comp-home-header::before,
.comp-home-header::after {
  content: "";
  position: absolute;
  width: 52px;
  height: 7px;
  background: var(--comp-landing-accent);
  pointer-events: none;
  transform: scaleX(0);
  transition: transform 0.8s var(--ease);
}
.comp-home-header::before {
  top: 0;
  left: 0;
  transform-origin: left center;
}
.comp-home-header::after {
  right: 0;
  bottom: 0;
  transform-origin: right center;
  transition-delay: 120ms;
}
.comp-home.is-landing-on .comp-home-header::before,
.comp-home.is-landing-on .comp-home-header::after {
  transform: scaleX(1);
}
.comp-home-header > * {
  position: relative;
  z-index: 1;
}
.comp-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.72s var(--ease), transform 0.72s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.comp-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.comp-home-label {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #c7cbd2;
  margin-bottom: 18px;
}
.comp-home-title {
  font-family: "TASA Orbiter", var(--sans-en), var(--sans);
  font-weight: 700;
  font-size: clamp(34px, 5.2vw, 74px);
  letter-spacing: -0.03em;
  color: var(--white);
  line-height: 1.06;
  margin-bottom: 14px;
  text-wrap: balance;
}
.comp-home-subtitle {
  max-width: 760px;
  font-size: clamp(15px, 2vw, 20px);
  color: rgba(255,255,255,0.8);
  line-height: 1.6;
  margin-bottom: 30px;
}
.comp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.comp-hero-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  font-family: var(--mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--dur-normal) var(--ease), background var(--dur-normal) var(--ease), color var(--dur-normal) var(--ease), border-color var(--dur-normal) var(--ease);
}
.comp-hero-btn::after {
  content: '\2197';
  margin-left: 8px;
  transition: transform var(--dur-normal) var(--ease);
}
.comp-hero-btn:hover {
  transform: translateY(-1px);
}
.comp-hero-btn:hover::after {
  transform: translate(2px, -2px);
}
.comp-hero-btn--primary {
  background: var(--white);
  color: #0c0e0e;
  border-color: var(--white);
}
.comp-hero-btn--primary:hover {
  background: #f3e3e3;
  border-color: #f3e3e3;
}
.comp-hero-btn--ghost {
  background: transparent;
  color: #f5f7f6;
  border-color: #5d646d;
}
.comp-hero-btn--ghost:hover {
  border-color: #c7cbd2;
  color: var(--white);
}
.comp-hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  position: relative;
  overflow: hidden;
}
.comp-hero-metrics::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255,255,255,0) 20%, rgba(255,255,255,0.22) 50%, rgba(255,255,255,0) 80%);
  transform: translateX(-130%);
  pointer-events: none;
}
.comp-home.is-landing-on .comp-hero-metrics::after {
  animation: compMetricSweep 1.4s 0.45s var(--ease) both;
}
.comp-hero-metric {
  min-height: 82px;
  padding: 14px 16px;
  border: 1px solid #2c3333;
  background: rgba(255,255,255,0.03);
}
.comp-hero-metric strong {
  display: block;
  margin-bottom: 2px;
  font-family: "TASA Orbiter", var(--sans-en), var(--sans);
  font-size: clamp(22px, 2.8vw, 34px);
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--white);
}
.comp-hero-metric span {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #c7cbd2;
}
.comp-tip-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.comp-tip-box {
  border: 1px solid #2c3333;
  background: rgba(255,255,255,0.02);
  padding: 20px 22px;
  margin: 0;
}
.comp-tip-box-title {
  font-family: var(--mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffd2d2;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.comp-tip-box-title::before {
  content: '';
  width: 8px;
  height: 8px;
  border: 1px solid var(--comp-landing-accent);
  background: rgba(150,30,35,0.14);
}
.comp-tip-box p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.82);
  line-height: 1.65;
  margin: 0;
}
.comp-tip-box p + p { margin-top: 8px; }
.comp-tip-box ul {
  margin: 8px 0 0 16px;
  padding: 0;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.82);
  line-height: 1.7;
}
.comp-tip-box li + li {
  margin-top: 4px;
}

.comp-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}
.comp-card {
  position: relative;
  border: 1px solid #d6dbd5;
  border-radius: 0;
  background: var(--white);
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--dur-normal) var(--ease), box-shadow var(--dur-normal) var(--ease), transform var(--dur-normal) var(--ease);
}
.comp-card.comp-card-reveal {
  opacity: 0;
  transform: translateY(30px);
}
.comp-card.comp-card-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.62s var(--ease),
    transform 0.62s var(--ease),
    border-color var(--dur-normal) var(--ease),
    box-shadow var(--dur-normal) var(--ease);
  transition-delay: var(--card-delay, 0ms);
}
.comp-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--comp-landing-accent);
  transition: width var(--dur-slow) var(--ease);
}
.comp-card:hover {
  border-color: #5d646d;
  box-shadow: 0 14px 40px rgba(0,0,0,0.11);
  transform: translateY(-3px);
}
.comp-card:hover::before {
  width: 100%;
}
.comp-card-preview {
  position: relative;
  height: 172px;
  padding: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(12,14,14,0.025) 0%, rgba(12,14,14,0.045) 100%),
    repeating-linear-gradient(0deg, transparent 0 24px, rgba(12,14,14,0.045) 24px 25px);
  border-bottom: 1px solid #dde2dc;
  overflow: hidden;
}
.comp-card-preview::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 22px;
  height: 5px;
  background: var(--comp-landing-accent);
  opacity: 0.8;
}
.comp-card-preview > * {
  transform: scale(0.85);
  pointer-events: none;
}
.comp-card-info {
  padding: 18px 20px 20px;
}
.comp-card-name {
  font-family: "TASA Orbiter", var(--sans-en), var(--sans);
  font-size: 17px;
  font-weight: 600;
  color: #0c0e0e;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}
.comp-card-desc {
  font-size: var(--text-sm);
  color: #5d646d;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.comp-card-category {
  font-family: var(--mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9096a0;
  margin-bottom: 8px;
  display: block;
}

.comp-detail .comp-back-btn {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  padding: 24px 14px 0;
}

@keyframes compMetricSweep {
  to { transform: translateX(130%); }
}

@media (max-width: 980px) {
  .comp-home {
    padding: 40px 22px 96px;
  }
  .comp-home::before,
  .comp-home::after {
    display: none;
  }
  .comp-home-header {
    margin-bottom: 40px;
    padding: 30px 22px 24px;
  }
  .comp-hero-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .comp-tip-grid {
    grid-template-columns: 1fr;
  }
  .comp-card-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
  }
}

@media (max-width: 720px) {
  .comp-home-title {
    font-size: clamp(30px, 11vw, 56px);
  }
  .comp-home-subtitle {
    font-size: 15px;
    margin-bottom: 20px;
  }
  .comp-hero-actions {
    flex-direction: column;
  }
  .comp-hero-btn {
    width: 100%;
  }
  .comp-hero-metrics {
    grid-template-columns: 1fr;
  }
  .comp-card-grid {
    grid-template-columns: 1fr;
  }
  .comp-card-preview {
    height: 160px;
    padding: 18px;
  }
}

/* ── Dark Theme Overrides ── */
body[data-theme="charcoal"] .comp-home-header {
  border-color: #2c3333;
  background:
    radial-gradient(820px 380px at var(--mx, 50%) var(--my, 0%), rgba(150,30,35,0.13) 0%, rgba(150,30,35,0) 62%),
    linear-gradient(180deg, #090b0b 0%, #101515 100%);
}
body[data-theme="charcoal"] .comp-home::before,
body[data-theme="charcoal"] .comp-home::after {
  opacity: 0.45;
  background: repeating-linear-gradient(
    to bottom,
    rgba(145,152,164,0) 0 18px,
    rgba(145,152,164,0.35) 18px 19px,
    rgba(145,152,164,0) 19px 36px
  );
}
body[data-theme="charcoal"] .comp-tip-box {
  border-color: #2c3333;
  background: rgba(255,255,255,0.025);
}
body[data-theme="charcoal"] .comp-card {
  border-color: #323838;
  background: #151919;
}
body[data-theme="charcoal"] .comp-card:hover {
  border-color: #9ca3ae;
  box-shadow: 0 14px 36px rgba(0,0,0,0.45);
}
body[data-theme="charcoal"] .comp-card-preview {
  border-bottom-color: #2c3333;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.05) 100%),
    repeating-linear-gradient(0deg, transparent 0 24px, rgba(255,255,255,0.05) 24px 25px);
}
body[data-theme="charcoal"] .comp-card-name {
  color: #f5f7f6;
}
body[data-theme="charcoal"] .comp-card-desc {
  color: #c7ccd4;
}
body[data-theme="charcoal"] .comp-card-category {
  color: #939aa5;
}
body[data-theme="charcoal"] .comp-back-btn {
  border-color: #323838;
  color: #c7ccd4;
}
body[data-theme="charcoal"] .comp-back-btn:hover {
  border-color: #9ca3ae;
  background: rgba(255,255,255,0.05);
  color: var(--white);
}

@media (prefers-reduced-motion: reduce) {
  .comp-reveal,
  .comp-card.comp-card-reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .comp-home-header::before,
  .comp-home-header::after {
    transform: scaleX(1);
    transition: none;
  }
  .comp-home.is-landing-on .comp-hero-metrics::after {
    animation: none;
  }
}

/* ══════════════════════════════════
   v3.0 — Doc Article · Phone Mockup
══════════════════════════════════ */
/* ── Doc Article Extensions ── */
.doc-crumbs {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.doc-h1 {
  font-family: var(--sans);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0 0 12px;
}
.doc-h2 {
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.doc-section-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 0 24px;
}
.doc-article {
  padding-bottom: 120px;
}
.doc-article section {
  margin-top: 48px;
}

/* ── Phone Mockup Frame ── */
.doc-app-mockup {
  position: relative;
  background: #f0f0f2;
  border-radius: 20px;
  padding: 60px;
  display: flex;
  justify-content: center;
  overflow: hidden;
}
.phone-frame {
  width: 320px;
  height: 560px;
  background: var(--white);
  border-radius: 32px;
  border: 8px solid #000;
  box-shadow: 0 40px 80px rgba(0,0,0,0.1);
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}
.phone-notch {
  width: 120px;
  height: 28px;
  background: #000;
  border-radius: 0 0 16px 16px;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.phone-content {
  padding: 48px 24px 24px;
  height: 100%;
  overflow-y: auto;
  box-sizing: border-box;
}
.mock-header {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}
.mock-item {
  padding: 12px 0;
  border-bottom: 1px solid #f0f0f0;
  font-size: var(--text-sm);
  color: var(--charcoal-hover);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mock-cta {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: #3182f6;
  color: var(--white);
  border: none;
  padding: 16px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  text-align: center;
}
/* ── Callout Guide System (precision targeting) ── */
.mock-callout-anchor {
  position: relative;
}
.mock-callout {
  position: absolute;
  top: 50%;
  left: calc(100% + 8px);
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 0;
  pointer-events: none;
  z-index: 3;
}
.callout-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00d082;
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(0,208,130,0.2);
}
.callout-line {
  width: 80px;
  height: 2px;
  background: linear-gradient(to right, #00d082, #00d082);
  flex-shrink: 0;
}
.callout-label {
  background: #00d082;
  color: var(--white);
  padding: 8px 18px;
  border-radius: 100px;
  font-weight: 700;
  font-size: var(--text-13);
  white-space: nowrap;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 12px rgba(0,208,130,0.3);
}

/* ── v3.0 Dark Theme Overrides ── */
body[data-theme="charcoal"] .doc-app-mockup {
  background: var(--charcoal);
}
body[data-theme="charcoal"] .phone-frame {
  border-color: var(--charcoal-hover);
  background: #222;
}
body[data-theme="charcoal"] .phone-content { background: #222; }
body[data-theme="charcoal"] .mock-header { color: #eee; }
body[data-theme="charcoal"] .mock-item { color: #ccc; border-color: var(--charcoal-hover); }
body[data-theme="charcoal"] .mock-cta { background: #4a90d9; }
body[data-theme="charcoal"] .callout-dot { background: #00e88e; box-shadow: 0 0 0 3px rgba(0,232,142,0.25); }
body[data-theme="charcoal"] .callout-line { background: #00e88e; }
body[data-theme="charcoal"] .callout-label { background: #00e88e; color: var(--text); box-shadow: 0 2px 12px rgba(0,232,142,0.35); }
body[data-theme="charcoal"] .doc-h2 { border-color: var(--border); }

/* ── Patterns: Interactive Feature Showcase ── */
.pattern-feature-strip {
  --pattern-accent: var(--red-brand);
  max-width: var(--content-max);
  margin: 0 auto 72px;
  padding: 0 var(--content-px);
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 14px;
}
.pattern-feature-card {
  position: relative;
  border: 1px solid #2f3438;
  background: linear-gradient(180deg, #0f1214 0%, #151a1d 100%);
  color: #f7f8f9;
  padding: 18px 18px 16px;
  min-height: 240px;
  overflow: hidden;
}
.pattern-feature-card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 18px;
  height: 4px;
  background: var(--pattern-accent);
  opacity: 0.92;
}
.pattern-feature-head {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}
.pattern-feature-kicker {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #aeb5be;
}
.pattern-feature-title {
  font-family: "TASA Orbiter", var(--sans-en), var(--sans);
  font-size: 22px;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--white);
}
.pattern-mini-chart {
  width: 100%;
  height: 164px;
  display: block;
  border: 1px solid rgba(122,129,141,0.55);
  background:
    linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.05) 100%),
    repeating-linear-gradient(0deg, transparent 0 19px, rgba(120,128,140,0.25) 19px 20px);
}
.pattern-feature-foot {
  margin-top: 10px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.pattern-feature-stat {
  font-family: "TASA Orbiter", var(--sans-en), var(--sans);
  font-size: 20px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: #ffd2d2;
}
.pattern-feature-note {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9ca4ae;
}
.pattern-analyzer-list {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  display: grid;
  gap: 6px;
}
.pattern-analyzer-item {
  font-size: var(--text-13);
  color: rgba(209,217,226,0.76);
  line-height: 1.45;
  padding-left: 14px;
  position: relative;
  transition: color var(--dur-normal) var(--ease), transform var(--dur-normal) var(--ease);
}
.pattern-analyzer-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 7px;
  height: 2px;
  background: rgba(198,70,76,0.58);
}
.pattern-analyzer-item.is-hot {
  color: #f7f8f9;
  transform: translateX(2px);
}
.pattern-analyzer-item.is-hot::before {
  background: #d14b52;
}
.pattern-analyzer-console {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  border: 1px solid rgba(198,70,76,0.72);
  background: rgba(6,8,10,0.7);
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: #ffd2d2;
}
.pattern-analyzer-prefix {
  color: #d14b52;
}
.pattern-analyzer-caret {
  width: 8px;
  height: 14px;
  background: #d14b52;
  animation: patternBlink 1s steps(2, end) infinite;
}
.pattern-analyzer-status {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9ca4ae;
}
.pattern-signal-stack {
  display: grid;
  gap: 10px;
  margin-top: 4px;
}
.pattern-signal-row {
  display: grid;
  grid-template-columns: 62px 1fr 36px;
  align-items: center;
  gap: 8px;
}
.pattern-signal-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #bcc4cd;
}
.pattern-signal-track {
  height: 8px;
  border: 1px solid rgba(122,129,141,0.56);
  background: rgba(7,10,12,0.5);
  overflow: hidden;
}
.pattern-signal-fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, rgba(198,70,76,0.26) 0%, rgba(198,70,76,0.88) 100%);
  transition: width 0.6s var(--ease);
}
.pattern-signal-value {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffd2d2;
  text-align: right;
}
@keyframes patternBlink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

@media (max-width: 980px) {
  .pattern-feature-strip {
    padding: 0 22px;
    grid-template-columns: 1fr;
    margin: 0 auto 56px;
  }
}
@media (max-width: 720px) {
  .pattern-feature-card {
    min-height: 0;
    padding: 16px 14px 14px;
  }
  .pattern-feature-title {
    font-size: 19px;
  }
  .pattern-mini-chart {
    height: 148px;
  }
}

body[data-theme="charcoal"] .pattern-feature-card {
  border-color: #33393e;
  background: linear-gradient(180deg, #0c1013 0%, #13181c 100%);
}
body[data-theme="charcoal"] .pattern-mini-chart {
  border-color: rgba(122,129,141,0.62);
}
body[data-theme="charcoal"] .pattern-analyzer-console {
  background: rgba(5,7,8,0.76);
}
body[data-theme="charcoal"] .pattern-feature-stat {
  color: #ffd8d8;
}

@media (prefers-reduced-motion: reduce) {
  .pattern-analyzer-caret {
    animation: none;
  }
  .pattern-signal-fill {
    transition: none;
  }
}

/* ══════════════════════════════════
   Patterns v2.4 — Quanta Style
══════════════════════════════════ */
/* ── Bento Grid ── */
/* ── Dark Stacked Bento (Quanta Style) ── */
.qt-section {
  background: #080808;
  color: var(--white);
  padding: 80px var(--content-px);
  border-radius: 24px;
  margin: 0 48px 80px;
}
body[data-theme="charcoal"] .qt-section {
  border: 1px solid rgba(255,255,255,0.06);
}
.qt-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, minmax(300px, 400px));
  gap: 16px;
  max-width: var(--content-max);
  margin: 0 auto;
}
.qt-card {
  position: relative;
  background: var(--text);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s var(--ease);
}
.qt-card:hover { border-color: rgba(255,255,255,0.2); }
.qt-card.wide { grid-column: span 2; }
.qt-card.tall { grid-row: span 2; }
.qt-text {
  position: relative;
  z-index: 10;
  padding: 32px;
  pointer-events: none;
}
.qt-label {
  font-family: var(--mono);
  font-size: var(--text-xs);
  color: #888;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.qt-label::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--red-brand);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--red-brand);
}
.qt-title {
  font-family: var(--sans);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 8px;
  background: linear-gradient(to bottom, var(--white) 60%, #888 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.qt-desc {
  font-size: var(--text-sm);
  color: #666;
  line-height: 1.6;
  max-width: 90%;
}
/* Visual Layer */
.qt-visual {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow: hidden;
}
/* Type A: Cascading Layers */
.ui-cascade {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-40%, -40%);
  width: 100%; height: 100%;
}
.ui-panel {
  width: 320px; height: 200px;
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.6);
  position: absolute;
  transition: transform 0.6s var(--ease), opacity 0.6s var(--ease);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ui-panel-header { width: 40%; height: 8px; background: var(--charcoal-hover); border-radius: 4px; }
.ui-panel-row { width: 100%; height: 24px; background: rgba(255,255,255,0.03); border-radius: 6px; }
.layer-1 { top: 40%; left: 40%; z-index: 3; background: #222; }
.layer-2 { top: 50%; left: 55%; z-index: 2; opacity: 0.6; transform: scale(0.95); }
.layer-3 { top: 60%; left: 70%; z-index: 1; opacity: 0.3; transform: scale(0.9); }
.qt-card:hover .layer-1 { transform: translate(-10px, -10px); }
.qt-card:hover .layer-2 { transform: translate(0, 0) scale(0.95); opacity: 0.8; }
.qt-card:hover .layer-3 { transform: translate(10px, 10px) scale(0.9); opacity: 0.5; }
/* Type B: Masked Table */
.ui-table-fade {
  position: absolute;
  bottom: 0; left: 24px; right: 0;
  height: 70%;
  background: #161616;
  border-top-left-radius: 16px;
  border: 1px solid rgba(255,255,255,0.1);
  border-bottom: none; border-right: none;
  padding: 24px;
  mask-image: linear-gradient(to right, black 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, black 60%, transparent 100%);
}
.fake-row {
  display: flex; justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.fake-cell { height: 8px; background: var(--charcoal-hover); border-radius: 4px; }
/* Type C: Glass Card */
.ui-glass {
  position: absolute;
  inset: 40px;
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ui-glass-chart {
  width: 80%; height: 60%;
  background: repeating-linear-gradient(90deg, transparent, transparent 19%, rgba(255,255,255,0.05) 20%);
  position: relative;
}
.ui-glass-line {
  position: absolute; bottom: 0; left: 0;
  width: 100%; height: 100%;
  stroke: var(--red-brand); stroke-width: 2; fill: none;
}
/* ── User Story 캐러셀 ── */
.user-story-section {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) 80px;
}
.user-story-carousel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}
.user-story-track {
  display: flex;
  transition: transform 0.6s var(--ease);
}
.user-story-card {
  flex: 0 0 100%;
  padding: 64px var(--content-px);
  text-align: center;
}
.user-story-quote {
  font-family: var(--serif);
  font-size: clamp(18px, 2.5vw, 24px);
  line-height: 1.5;
  color: var(--charcoal);
  max-width: 600px;
  margin: 0 auto 24px;
}
.user-story-quote::before { content: "\201C"; }
.user-story-quote::after { content: "\201D"; }
.user-story-name {
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--charcoal);
}
.user-story-role {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-top: 4px;
}
.user-story-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 0 0 24px;
}
.user-story-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-strong);
  border: none;
  cursor: pointer;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
  padding: 0;
}
.user-story-dot.is-active {
  background: var(--charcoal);
  transform: scale(1.3);
}
/* ── Live Dashboard 통합 ── */
.live-dashboard {
  max-width: var(--content-max);
  margin: 0 auto 80px;
  padding: 0 var(--content-px);
}
.live-dashboard-inner {
  border: 1px solid var(--charcoal);
  border-radius: var(--radius);
  background: var(--bg-card);
  overflow: hidden;
}
.live-dashboard-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}
.live-dashboard-header .live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red-brand);
  animation: livePulse 2s ease infinite;
}
@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.live-dashboard-header span {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.live-dashboard-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 300px;
}
.live-dashboard-body > * {
  border: none !important;
  border-radius: 0 !important;
  margin: 0 !important;
}
.live-dashboard-body .price-rail-section {
  border-right: 1px solid var(--border) !important;
}
/* ── Tech Stack 마키 ── */
.tech-marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 80px;
}
.tech-marquee-track {
  display: flex;
  white-space: nowrap;
  animation: techScroll 30s linear infinite;
}
.tech-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.tech-item .tech-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red-brand);
  opacity: 0.5;
}
@keyframes techScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
/* ── Persona Cards ── */
.persona-section {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px) 80px;
}
.persona-section-header {
  margin-bottom: 40px;
}
.persona-section-label {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.persona-section-title {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 700;
  color: var(--charcoal);
  line-height: 1.2;
}
.persona-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.persona-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: 32px 24px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.persona-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
  border-color: rgba(17,17,17,0.16);
}
.persona-icon {
  font-size: 28px;
  margin-bottom: 16px;
}
.persona-name {
  font-weight: 600;
  font-size: var(--text-md);
  color: var(--charcoal);
  margin-bottom: 8px;
}
.persona-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}
/* ── Closing CTA ── */
.pattern-cta {
  text-align: center;
  padding: 120px var(--content-px);
  background: linear-gradient(180deg, var(--bg) 0%, rgba(150,30,35,0.04) 100%);
  border-radius: var(--radius-lg);
  margin: 80px 48px;
  max-width: var(--content-max);
  margin-left: auto;
  margin-right: auto;
}
.pattern-cta-label {
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.pattern-cta-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 16px;
  line-height: 1.2;
}
.pattern-cta-sub {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}
/* ── Patterns: Layout Templates (Legacy) ── */
.ds-layout-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.ds-layout-card {
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  padding: 20px;
  cursor: pointer;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.ds-layout-card:hover {
  border-color: var(--charcoal);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.ds-layout-preview {
  width: 100%;
  height: 120px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
  display: grid;
  gap: 4px;
  padding: 8px;
}
.ds-layout-preview div {
  background: var(--border);
  min-height: 0;
}
.ds-layout-preview--detail {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr;
}
.ds-layout-preview--dashboard {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 1fr 2fr;
}
.ds-layout-preview--dashboard div:nth-child(4) {
  grid-column: 1 / -1;
}
.ds-layout-preview--listing {
  grid-template-columns: 1fr 3fr;
  grid-template-rows: 1fr 1fr;
}
.ds-layout-preview--listing div:first-child {
  grid-row: 1 / -1;
}
.ds-layout-name {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--charcoal);
  margin-bottom: 4px;
}
.ds-layout-desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: 1.5;
}

/* ══════════════════════════════════
   Brand History Timeline
══════════════════════════════════ */
.bh-timeline {
  position: relative;
  padding-left: 56px;
}
.bh-timeline::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--alpha-6),
    var(--red-brand) 15%,
    var(--red-brand) 85%,
    var(--alpha-6)
  );
}

/* Era Block */
.bh-era {
  position: relative;
  margin-bottom: 64px;
}
.bh-era:last-child {
  margin-bottom: 0;
}

/* Era Dot */
.bh-era::before {
  content: "";
  position: absolute;
  left: -44px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--bg);
  border: 3px solid var(--red-brand);
  z-index: 1;
}

/* Active Era (current) — pulsing dot */
.bh-era--active::before {
  background: var(--red-brand);
  box-shadow: 0 0 0 4px rgba(150,30,35,0.15);
  animation: bh-pulse 2s ease-in-out infinite;
}
@keyframes bh-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(150,30,35,0.15); }
  50% { box-shadow: 0 0 0 8px rgba(150,30,35,0.08); }
}

/* Era Header */
.bh-era-year {
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red-brand);
  margin-bottom: 6px;
}
.bh-era-title {
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 400;
  color: var(--charcoal);
  line-height: 1.35;
  margin-bottom: 16px;
}
.bh-era-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 640px;
}

/* Branch Node */
.bh-branch {
  position: relative;
  padding: 16px 20px;
  margin-bottom: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color var(--dur-normal) var(--ease),
              background var(--dur-normal) var(--ease),
              border-radius var(--dur-normal) var(--ease);
}
.bh-branch:hover {
  border-color: var(--border-strong);
  background: var(--warm-bg);
  border-radius: var(--radius-hover);
}

/* Branch connection line */
.bh-branch::before {
  content: "";
  position: absolute;
  left: -37px;
  top: 50%;
  width: 28px;
  height: 1px;
  background: var(--alpha-12);
}

/* Branch inner dot */
.bh-branch::after {
  content: "";
  position: absolute;
  left: -13px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--alpha-16);
  transition: background var(--dur-normal) var(--ease);
}
.bh-branch:hover::after {
  background: var(--red-brand);
}

.bh-branch-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.bh-branch-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.4;
}
.bh-branch-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Branch Tags */
.bh-branch-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.bh-tag {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  background: var(--alpha-4);
  color: var(--text-caption);
  border: 1px solid var(--alpha-6);
  transition: all var(--dur-normal) var(--ease);
}
.bh-tag--red {
  background: rgba(150,30,35,0.06);
  color: var(--red-brand);
  border-color: rgba(150,30,35,0.12);
}

/* Person Badge */
.bh-person {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-caption);
  margin-bottom: 12px;
}
.bh-person-dot {
  width: 8px;
  height: 8px;
  background: var(--red-brand);
}
.bh-person--secondary .bh-person-dot {
  background: var(--charcoal);
}

/* Flow Arrow between branches */
.bh-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0 4px 20px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
.bh-flow::before {
  content: "";
  width: 16px;
  height: 1px;
  background: var(--alpha-12);
}
.bh-flow-arrow {
  color: var(--red-brand);
  font-weight: 700;
}

/* Milestone marker */
.bh-milestone {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  margin-bottom: 8px;
  background: rgba(150,30,35,0.04);
  border-left: 3px solid var(--red-brand);
}
.bh-milestone-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--red-brand);
  flex-shrink: 0;
}
.bh-milestone-text {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--charcoal);
  line-height: 1.5;
}

/* Current status badge */
.bh-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.bh-status--active {
  background: rgba(150,30,35,0.06);
  color: var(--red-brand);
  border: 1px solid rgba(150,30,35,0.15);
}
.bh-status--complete {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}
.bh-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.bh-status--active .bh-status-dot {
  animation: bh-pulse-dot 1.5s ease-in-out infinite;
}
@keyframes bh-pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Dark section overrides */
.b44-section--dark .bh-timeline::before {
  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0.06),
    rgba(150,30,35,0.6) 15%,
    rgba(150,30,35,0.6) 85%,
    rgba(255,255,255,0.06)
  );
}
.b44-section--dark .bh-era::before {
  background: #1A1A1A;
  border-color: rgba(150,30,35,0.8);
}
.b44-section--dark .bh-era--active::before {
  background: var(--red-brand);
}
.b44-section--dark .bh-era-title {
  color: #F0F0F0;
}
.b44-section--dark .bh-era-desc {
  color: rgba(255,255,255,0.55);
}
.b44-section--dark .bh-branch {
  border-color: rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
}
.b44-section--dark .bh-branch:hover {
  border-color: rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
}
.b44-section--dark .bh-branch-title {
  color: #F0F0F0;
}
.b44-section--dark .bh-branch-desc {
  color: rgba(255,255,255,0.55);
}
.b44-section--dark .bh-milestone {
  background: rgba(150,30,35,0.08);
  border-left-color: rgba(150,30,35,0.6);
}
.b44-section--dark .bh-milestone-text {
  color: #F0F0F0;
}

/* Responsive */
@media (max-width: 768px) {
  .bh-timeline {
    padding-left: 40px;
  }
  .bh-timeline::before {
    left: 12px;
  }
  .bh-era::before {
    left: -36px;
    width: 12px;
    height: 12px;
  }
  .bh-branch::before {
    left: -29px;
    width: 20px;
  }
  .bh-branch::after {
    left: -13px;
  }
  .bh-era-title {
    font-size: 18px;
  }
  .bh-branch {
    padding: 12px 14px;
  }
  .bh-progress-track {
    margin-bottom: 32px;
  }
}

/* ── Timeline Progress Bar ── */
.bh-progress-track {
  position: relative;
  height: 4px;
  background: rgba(255,255,255,0.06);
  margin-bottom: 48px;
  overflow: hidden;
}
.bh-progress-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--red-brand), rgba(150,30,35,0.4));
  transition: width 60ms linear;
}
.bh-progress-years {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.04em;
}

/* ── Stagger Reveal for Eras ── */
.bh-stagger {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--dur-long) var(--ease),
              transform var(--dur-long) var(--ease);
}
.bh-stagger.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Child stagger (branches, milestones, flows inside eras) ── */
.bh-stagger .bh-branch,
.bh-stagger .bh-milestone,
.bh-stagger .bh-flow,
.bh-stagger .bh-person {
  opacity: 0;
  transform: translateX(-16px);
  transition: opacity var(--dur-slow) var(--ease),
              transform var(--dur-slow) var(--ease),
              border-color var(--dur-normal) var(--ease),
              background var(--dur-normal) var(--ease),
              border-radius var(--dur-normal) var(--ease);
}
.bh-child-visible {
  opacity: 1 !important;
  transform: translateX(0) !important;
}

/* ── Branch hover glow effect ── */
.bh-branch {
  --branch-glow: 0;
}
.b44-section--dark .bh-branch::after {
  box-shadow: 0 0 calc(var(--branch-glow) * 8px) rgba(150,30,35,calc(var(--branch-glow) * 0.6));
  transition: background var(--dur-normal) var(--ease),
              box-shadow var(--dur-normal) var(--ease);
}

/* ── Era dot entrance animation ── */
.bh-stagger::before {
  transform: scale(0);
  transition: transform var(--dur-slow) var(--ease-out-expo);
}
.bh-stagger.is-visible::before {
  transform: scale(1);
}

/* ── Year text counter flash ── */
@keyframes bh-year-flash {
  0% { color: rgba(150,30,35,1); }
  100% { color: var(--red-brand); }
}

/* ── Active era glow line ── */
.bh-era--active.is-visible::before {
  animation: bh-pulse 2s ease-in-out infinite, bh-dot-enter var(--dur-slow) var(--ease-out-expo);
}
@keyframes bh-dot-enter {
  from { transform: scale(0); }
  to { transform: scale(1); }
}

/* prefers-reduced-motion override */
@media (prefers-reduced-motion: reduce) {
  .bh-stagger {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .bh-stagger .bh-branch,
  .bh-stagger .bh-milestone,
  .bh-stagger .bh-flow,
  .bh-stagger .bh-person {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .bh-stagger::before {
    transform: scale(1);
    transition: none;
  }
  .bh-progress-fill {
    transition: none;
  }
}

/* ═══════════════════════════════════════════════════════
   Relation Map — 인터랙티브 관계 맵 (rm-*)
   Brand History 섹션: 노드 간 연결선, 호버 팝업, 클릭 하이라이트
   ═══════════════════════════════════════════════════════ */

/* ── Map Container ── */
.rm-map {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 44px;
  padding: 56px 0 72px;
  margin-left: 120px;
}

/* ── SVG Overlay ── */
.rm-svg {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 3;
  overflow: visible;
}

/* ── Connection Lines (기본 숨김 → 클릭 시 draw-in 표시) ── */
.rm-line {
  fill: none;
  stroke: rgba(150,30,35,0.3);
  stroke-width: 1.5;
  opacity: 0;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.rm-line--active {
  stroke: rgba(150,30,35,0.6);
  stroke-width: 2;
  opacity: 1;
  filter: drop-shadow(0 0 6px rgba(150,30,35,0.15));
}
.rm-line--dimmed {
  opacity: 0;
}

/* ── Flow Particle (single dot) ── */
.rm-flow-dot {
  fill: var(--red-brand);
  opacity: 0;
  r: 3;
  filter: drop-shadow(0 0 6px rgba(150,30,35,0.5));
  transition: opacity 0.5s ease;
}
.rm-flow-dot.is-active {
  opacity: 0.85;
}

/* ── Row Layout ── */
.rm-row {
  display: flex;
  justify-content: center;
  gap: 24px;
  position: relative;
  z-index: 2;
}
.rm-row--double {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.rm-row--triple {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}

/* ── Node Base ── */
.rm-node {
  position: relative;
  padding: 28px 32px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0;
  transform: translateY(24px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.rm-node.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.rm-node:hover {
  border-color: rgba(150,30,35,0.35);
  background: rgba(255,255,255,0.06);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2),
              0 0 0 1px rgba(150,30,35,0.1);
  transform: translateY(-2px);
}

/* ── Node State: Click Active ── */
.rm-node.rm-active {
  border-color: rgba(150,30,35,0.6);
  background: rgba(150,30,35,0.08);
  box-shadow: 0 0 0 1px rgba(150,30,35,0.3),
              0 12px 40px rgba(0,0,0,0.25),
              0 0 48px rgba(150,30,35,0.08);
  z-index: 10;
  transform: translateY(-3px);
}
.rm-node.rm-connected {
  border-color: rgba(150,30,35,0.35);
  background: rgba(150,30,35,0.05);
  box-shadow: 0 0 0 1px rgba(150,30,35,0.15);
}
.rm-node.rm-dimmed {
  opacity: 0.2;
  filter: grayscale(0.4) blur(0.5px);
  transform: scale(0.99);
}

/* ── Node Variants ── */
.rm-node--origin {
  border-color: rgba(150,30,35,0.25);
  background: rgba(150,30,35,0.04);
  text-align: center;
  align-items: center;
}
.rm-node--keyword {
  text-align: center;
  align-items: center;
  padding: 28px 24px;
}
.rm-node--problem {
  border-color: rgba(255,200,0,0.15);
  background: rgba(255,200,0,0.03);
  text-align: center;
  align-items: center;
}
.rm-node--pivot {
  border-color: rgba(100,200,255,0.15);
  background: rgba(100,200,255,0.03);
}
.rm-node--milestone {
  border-color: rgba(150,30,35,0.25);
  background: rgba(150,30,35,0.04);
  text-align: center;
  align-items: center;
}
.rm-node--concept {
  border-style: dashed;
}
.rm-node--person {
  border-color: rgba(150,30,35,0.25);
  background: rgba(150,30,35,0.04);
}
.rm-node--philosophy {
  border-color: rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
  text-align: center;
  align-items: center;
}
.rm-node--doc {
  border-left: 3px solid rgba(150,30,35,0.3);
}
.rm-node--current {
  border: 1px solid rgba(150,30,35,0.4);
  background: rgba(150,30,35,0.05);
  text-align: center;
  align-items: center;
  padding: 40px 36px;
  box-shadow: 0 0 64px rgba(150,30,35,0.06);
}
.rm-node--current .rm-node-title {
  font-size: var(--text-xl, 20px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: rgba(255,255,255,0.96);
}

/* ── New Category Node Variants ── */
.rm-node--ancestor {
  border-color: rgba(180,140,80,0.25);
  background: rgba(180,140,80,0.04);
  text-align: center;
  align-items: center;
  border-style: double;
  border-width: 3px;
}
.rm-node--release {
  border-color: rgba(80,180,120,0.15);
  background: rgba(80,180,120,0.03);
  border-left: 2px solid rgba(80,180,120,0.4);
}
.rm-node--marketing {
  border-color: rgba(220,120,200,0.12);
  background: rgba(220,120,200,0.03);
  border-left: 2px solid rgba(220,120,200,0.3);
}
.rm-node--investment {
  border-color: rgba(80,160,220,0.15);
  background: rgba(80,160,220,0.03);
  border-left: 2px solid rgba(80,160,220,0.4);
}
.rm-node--hiring {
  border-color: rgba(100,220,200,0.12);
  background: rgba(100,220,200,0.03);
}
.rm-node--research {
  border-color: rgba(200,180,100,0.12);
  background: rgba(200,180,100,0.03);
  border-style: dashed;
}

/* ── Node Inner Elements — Typography Hierarchy ── */
.rm-node-date {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(150,30,35,0.6);
  margin-bottom: 2px;
}
.rm-node-title {
  font-size: var(--text-base, 16px);
  font-weight: 600;
  color: rgba(255,255,255,0.92);
  line-height: 1.35;
  letter-spacing: -0.01em;
}
.rm-node-sub {
  font-size: var(--text-13);
  font-weight: 400;
  color: rgba(255,255,255,0.4);
  line-height: 1.6;
  letter-spacing: 0.005em;
}
.rm-node-desc {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.28);
  line-height: 1.7;
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.04);
  letter-spacing: 0.01em;
}
.rm-node-person {
  font-family: var(--mono);
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.06em;
  margin-top: 4px;
}
.rm-node-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin: 0 auto 10px;
  color: rgba(150,30,35,0.55);
  opacity: 0.75;
  transition: opacity 0.4s ease, color 0.4s ease, transform 0.4s ease;
}
.rm-node:hover .rm-node-icon {
  opacity: 1;
  color: rgba(150,30,35,0.85);
  transform: translateY(-1px);
}
.rm-node-icon svg {
  width: 18px;
  height: 18px;
}

/* ── Popup (Hover 시 노션 데이터) ── */
.rm-popup {
  position: absolute;
  bottom: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  width: 420px;
  max-width: 90vw;
  padding: 32px;
  background: rgba(18,18,18,0.95);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 3px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5),
              0 0 0 1px rgba(255,255,255,0.04),
              0 0 1px rgba(0,0,0,0.5);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.rm-popup--wide {
  width: 540px;
}
.rm-node:hover .rm-popup {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.rm-popup::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: rgba(255,255,255,0.08);
}

/* Popup Inner — refined typography */
.rm-popup-date {
  font-family: var(--mono);
  font-size: 10px;
  color: rgba(150,30,35,0.6);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.rm-popup-title {
  font-size: var(--text-lg, 18px);
  font-weight: 600;
  color: rgba(255,255,255,0.95);
  margin-bottom: 18px;
  line-height: 1.4;
  letter-spacing: -0.01em;
}
.rm-popup-body {
  font-size: var(--text-13);
  color: rgba(255,255,255,0.5);
  line-height: 1.85;
  margin-bottom: 12px;
  letter-spacing: 0.005em;
}
.rm-popup-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(150,30,35,0.5);
  line-height: 1.65;
  margin-bottom: 10px;
}
.rm-popup-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.rm-popup-tag {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  background: rgba(255,255,255,0.04);
  color: rgba(255,255,255,0.38);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 1px;
}
.rm-popup-tag--red {
  background: rgba(150,30,35,0.1);
  color: rgba(150,30,35,0.8);
  border-color: rgba(150,30,35,0.2);
}
.rm-popup-tag--active {
  background: rgba(150,30,35,0.08);
  color: var(--red-brand);
  border: 1px solid rgba(150,30,35,0.2);
  animation: bh-pulse-dot 2s ease-in-out infinite;
}
.rm-popup-tag--done {
  background: rgba(34,197,94,0.08);
  color: rgba(34,197,94,0.8);
  border: 1px solid rgba(34,197,94,0.2);
}

/* Popup Table (Notion-style) */
.rm-popup-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
}
.rm-popup-table td {
  font-size: var(--text-13);
  padding: 7px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: top;
  line-height: 1.6;
}
.rm-popup-table td:first-child {
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(150,30,35,0.7);
  white-space: nowrap;
  width: 60px;
  letter-spacing: 0.02em;
}
.rm-popup-table td:last-child {
  color: rgba(255,255,255,0.55);
}

/* Popup Grid (CHAART OS 노드용) */
.rm-popup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 12px;
}
.rm-popup-grid > div {
  padding: 12px 14px;
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(255,255,255,0.05);
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
}
.rm-popup-grid > div strong {
  display: block;
  color: rgba(255,255,255,0.88);
  font-size: var(--text-13);
  font-weight: 500;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

/* ── Legend ── */
.rm-legend {
  margin-top: 64px;
  padding: 20px 24px;
  background: rgba(255,255,255,0.015);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 2px;
}
.rm-legend-title {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  margin-bottom: 14px;
}
.rm-legend-items {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
}
.rm-legend-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.01em;
}
.rm-legend-dot {
  width: 10px;
  height: 10px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 1px;
}
.rm-legend-dot--origin {
  background: rgba(150,30,35,0.3);
  border-color: rgba(150,30,35,0.5);
}
.rm-legend-dot--keyword {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.15);
}
.rm-legend-dot--pivot {
  background: rgba(100,200,255,0.1);
  border-color: rgba(100,200,255,0.3);
}
.rm-legend-dot--person {
  background: rgba(150,30,35,0.2);
  border-color: rgba(150,30,35,0.4);
}
.rm-legend-dot--philosophy {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
}
.rm-legend-dot--current {
  background: rgba(150,30,35,0.15);
  border: 2px solid var(--red-brand);
}
.rm-legend-dot--ancestor {
  background: rgba(180,140,80,0.2);
  border-color: rgba(180,140,80,0.4);
  border-style: double;
  border-width: 2px;
}
.rm-legend-dot--release {
  background: rgba(80,180,120,0.12);
  border-color: rgba(80,180,120,0.35);
}
.rm-legend-dot--marketing {
  background: rgba(220,120,200,0.12);
  border-color: rgba(220,120,200,0.3);
}
.rm-legend-dot--investment {
  background: rgba(80,160,220,0.12);
  border-color: rgba(80,160,220,0.35);
}
.rm-legend-dot--research {
  background: rgba(200,180,100,0.12);
  border-color: rgba(200,180,100,0.3);
  border-style: dashed;
}
.rm-legend-line {
  width: 20px;
  height: 2px;
  background: rgba(150,30,35,0.4);
}

/* ── Row Year Labels ── */
.rm-row::before {
  content: attr(data-era);
  position: absolute;
  left: -110px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.2);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  writing-mode: horizontal-tb;
  padding: 4px 0;
}
.rm-row.is-in-view::before {
  opacity: 1;
}

/* ── Row Separator Line ── */
.rm-row + .rm-row::after {
  content: '';
  position: absolute;
  top: -22px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .rm-row--double,
  .rm-row--triple {
    grid-template-columns: 1fr;
  }
  .rm-popup {
    width: 320px;
    padding: 20px;
  }
  .rm-popup--wide {
    width: 340px;
  }
  .rm-popup-grid {
    grid-template-columns: 1fr;
  }
  .rm-node {
    padding: 18px 20px;
  }
  .rm-node-title {
    font-size: var(--text-base);
  }
  .rm-node-desc {
    font-size: var(--text-13);
  }
  .rm-legend-items {
    gap: 12px;
  }
  .rm-row::before {
    display: none;
  }
  .rm-map {
    margin-left: 0;
  }
}

/* ══════════════════════════════════
   Icon Registry — Token 카탈로그
══════════════════════════════════ */
.ds-icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.ds-icon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 24px 16px 18px;
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 0;
  transition: border-color 0.3s ease, background 0.3s ease;
  cursor: default;
}
.ds-icon-card:hover {
  border-color: rgba(150,30,35,0.25);
  background: rgba(150,30,35,0.03);
}
.ds-icon-card-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: rgba(150,30,35,0.65);
  transition: color 0.3s ease;
}
.ds-icon-card:hover .ds-icon-card-preview {
  color: rgba(150,30,35,0.9);
}
.ds-icon-card-preview svg {
  width: 22px;
  height: 22px;
}
.ds-icon-card-name {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.65);
  text-align: center;
  line-height: 1.4;
}
.ds-icon-card-context {
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  text-align: center;
  line-height: 1.4;
}
.ds-icon-spec {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  padding: 20px 24px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  margin-top: 20px;
}
.ds-icon-spec-item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ds-icon-spec-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.35);
  text-transform: uppercase;
}
.ds-icon-spec-value {
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,0.6);
}

/* ══════════════════════════════════════════════════════════
   Component Search — Tag Filter Active State
   2026-02 Design System Upgrade — Sprint 0
   ══════════════════════════════════════════════════════════ */
.b44-pill-tag {
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
}
.b44-pill-tag:hover {
  background: var(--alpha-8);
  color: var(--text);
}
.b44-pill-tag.is-active {
  background: var(--charcoal) !important;
  color: var(--bg) !important;
  border-color: var(--charcoal) !important;
}
.comp-empty-state {
  grid-column: 1 / -1;
}

/* ══════════════════════════════════════════════════════════
   State Matrix — 컴포넌트별 상태 시각화 그리드
   2026-02 Design System Upgrade — Sprint 1B
   ══════════════════════════════════════════════════════════ */
.doc-state-matrix {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-4);
  padding: var(--space-6);
  background-color: var(--bg-secondary);
  background-image: radial-gradient(var(--alpha-6) 1px, transparent 1px);
  background-size: 16px 16px;
  border: 1px solid var(--border);
  margin-top: var(--space-4);
}
.doc-state-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.doc-state-label {
  display: block;
  font-family: var(--mono);
  font-size: var(--text-2xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.doc-state-cell .doc-state-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  width: 100%;
}

/* State visual modifiers — applied to preview elements */
.show-hover .state-target {
  background-color: var(--state-hover-overlay) !important;
  box-shadow: inset 0 0 0 200px var(--state-hover-overlay);
}
.show-focus .state-target {
  box-shadow: var(--state-focus-ring) !important;
}
.show-active .state-target {
  background-color: var(--state-active-overlay) !important;
  box-shadow: inset 0 0 0 200px var(--state-active-overlay);
  transform: scale(0.98);
}
.show-disabled .state-target {
  opacity: var(--state-disabled-opacity) !important;
  pointer-events: none;
  cursor: not-allowed;
}
.show-loading .state-target {
  opacity: var(--state-loading-opacity) !important;
  position: relative;
}
.show-loading .state-target::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 16px; height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid var(--alpha-16);
  border-top-color: var(--red-brand);
  border-radius: 50%;
  animation: stateSpinner 0.6s linear infinite;
}
@keyframes stateSpinner {
  to { transform: rotate(360deg); }
}

/* ══════════════════════════════════════════════════════════
   Component Explorer Toolbar
   doc-preview-box 위에 자동 생성되는 인터랙티브 컨트롤
   2026-02 Design System Upgrade — Sprint 2
   ══════════════════════════════════════════════════════════ */
.explorer-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-bottom: none;
  font-family: var(--mono);
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  overflow-x: auto;
  scrollbar-width: none;
}
.explorer-toolbar::-webkit-scrollbar { display: none; }
.explorer-group {
  display: flex;
  align-items: center;
  gap: 2px;
}
.explorer-label {
  color: var(--text-caption);
  font-weight: 600;
  margin-right: var(--space-2);
  white-space: nowrap;
}
.explorer-btn {
  padding: 3px 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: var(--text-2xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.explorer-btn:hover {
  background: var(--alpha-4);
  color: var(--text);
}
.explorer-btn.is-active {
  background: var(--charcoal);
  color: var(--bg);
  border-color: var(--charcoal);
}

/* Explorer theme scoping — preview-box level */
[data-explorer][data-theme="charcoal"] {
  background: #0a0a0a !important;
  color: #F0F0F0;
  border-color: rgba(255,255,255,0.08);
}
[data-explorer][data-theme="paper"] {
  background: #F0EDE6 !important;
}

/* ── Size Scale (foundations.html) ── */
.ds-size-scale {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 32px;
}
.ds-size-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ds-size-label {
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  width: 28px;
  text-align: right;
  flex-shrink: 0;
}
.ds-size-bar {
  flex: 1;
  max-width: 480px;
  background: var(--alpha-4);
  border: 1px solid var(--alpha-8);
  display: flex;
  align-items: center;
  padding: 0 12px;
  transition: background var(--dur-fast) var(--ease);
}
.ds-size-bar:hover {
  background: var(--alpha-8);
}
.ds-size-bar--active {
  background: var(--red-brand-ghost);
  border-color: var(--red-brand);
}
.ds-size-bar-text {
  font-family: var(--mono);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  white-space: nowrap;
}
.ds-size-bar--active .ds-size-bar-text {
  color: var(--red-brand);
  font-weight: 600;
}
.ds-size-token {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-caption);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Size Table */
.ds-size-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  margin-bottom: 20px;
}
.ds-size-table th {
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--alpha-12);
}
.ds-size-table th.num {
  text-align: right;
}
.ds-size-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--alpha-4);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.ds-size-table td.num {
  text-align: right;
  font-family: var(--mono);
  font-size: var(--text-xs);
}
.ds-size-table td code {
  font-family: var(--mono);
  font-size: var(--text-xs);
  background: var(--alpha-4);
  padding: 2px 6px;
}
.ds-size-table-active {
  background: var(--red-brand-ghost);
}
.ds-size-table-active td {
  font-weight: 600;
}

/* Size Note */
.ds-size-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 16px;
  background: var(--alpha-4);
  border-left: 2px solid var(--red-brand);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}
.ds-size-note svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--red-brand);
}

/* ── Breakpoints (foundations.html) ── */
.ds-bp-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.ds-bp-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ds-bp-label {
  font-family: var(--mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  width: 64px;
  text-align: right;
  flex-shrink: 0;
}
.ds-bp-bar {
  height: 28px;
  background: var(--alpha-4);
  border: 1px solid var(--alpha-8);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 8px;
  min-width: 80px;
  transition: background var(--dur-fast) var(--ease);
}
.ds-bp-bar:hover {
  background: var(--alpha-8);
}
.ds-bp-bar--wide {
  background: var(--red-brand-ghost);
  border-color: var(--red-brand);
}
.ds-bp-val {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  white-space: nowrap;
}
.ds-bp-bar--wide .ds-bp-val {
  color: var(--red-brand);
}
.ds-bp-desc {
  font-size: var(--text-sm);
  color: var(--text-caption);
  flex-shrink: 0;
}

/* Breakpoint Grid Diagram */
.ds-bp-grid-diagram {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 8px;
}
.ds-bp-grid-cell {
  text-align: center;
}
.ds-bp-grid-cols {
  display: grid;
  gap: 4px;
  margin-bottom: 8px;
}
.ds-bp-col {
  height: 40px;
  background: var(--alpha-6);
  border: 1px solid var(--alpha-8);
}
.ds-bp-grid-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-caption);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .ds-bp-grid-diagram {
    grid-template-columns: repeat(2, 1fr);
  }
  .ds-bp-desc {
    display: none;
  }
  .ds-size-bar {
    max-width: 240px;
  }
  .ds-size-token {
    display: none;
  }
}

/* ── prefers-reduced-motion ── */
@media (prefers-reduced-motion: reduce) {
  .rm-node {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .rm-line {
    transition: none;
  }
  .rm-popup {
    transition: none;
  }
  .rm-node--current {
    animation: none;
  }
}

/* ══════════════════════════════════════════════════════════
   Layout Utilities — ch- 네임스페이스
   와이어프레임 → 구현 시 재사용할 레이아웃 빌딩 블록
   ══════════════════════════════════════════════════════════ */

/* ── Container ── */
.ch-container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-px);
  width: 100%;
}
.ch-container--narrow {
  max-width: var(--content-narrow);
}
.ch-container--wide {
  max-width: var(--content-wide);
}
.ch-container--full {
  max-width: none;
}

/* ── Grid ── */
.ch-grid {
  display: grid;
  gap: var(--grid-gap-md);
}
.ch-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}
.ch-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}
.ch-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}
.ch-grid--auto {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.ch-grid--gap-sm {
  gap: var(--grid-gap-sm);
}
.ch-grid--gap-lg {
  gap: var(--grid-gap-lg);
}
.ch-grid--gap-1 {
  gap: var(--grid-gap-1px);
}

/* ── Flex ── */
.ch-flex {
  display: flex;
  gap: var(--grid-gap-md);
}
.ch-flex--center {
  align-items: center;
  justify-content: center;
}
.ch-flex--between {
  justify-content: space-between;
  align-items: center;
}
.ch-flex--col {
  flex-direction: column;
}
.ch-flex--wrap {
  flex-wrap: wrap;
}
.ch-flex--gap-sm {
  gap: var(--grid-gap-sm);
}
.ch-flex--gap-0 {
  gap: 0;
}

/* ── Stack (Vertical Rhythm) ── */
.ch-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.ch-stack--sm {
  gap: var(--space-3);
}
.ch-stack--lg {
  gap: var(--space-10);
}
.ch-stack--section {
  gap: var(--section-gap);
}

/* ── Page Layouts ── */
.ch-sidebar-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
}
.ch-sidebar-layout__sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  background: var(--surface-panel);
  border-right: 1px solid var(--border);
}
.ch-sidebar-layout__main {
  overflow-y: auto;
  padding: var(--space-8);
}
.ch-hero-layout {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--content-px);
}

/* ── Section ── */
.ch-section {
  padding: var(--section-gap) 0;
}
.ch-section--sm {
  padding: var(--space-12) 0;
}

/* ── Section Header Bar ── */
/* NOTE: .ch-section-header 는 base.css 에서 정의 (투명 배경, 프리미엄 타이포)
   다크 바 스타일은 .sys-section-hd (dealer.css) 에서 별도 처리
   아래는 Dealer/Artists 헤더 바 전용 클래스 */
.ch-section-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--section-hd-bg);
  color: var(--section-hd-color);
  font-family: var(--section-hd-font);
  font-size: var(--section-hd-size);
  font-weight: var(--section-hd-weight);
  letter-spacing: var(--section-hd-spacing);
  text-transform: uppercase;
  padding: var(--section-hd-py) var(--section-hd-px);
  min-height: var(--section-hd-height);
}
.ch-section-header-bar--sub {
  background: var(--section-hd-bg-sub);
}

/* ── Card Surface ── */
.ch-card {
  background: var(--surface-panel);
  border: 1px solid var(--border);
  padding: var(--card-py) var(--card-px);
  transition: box-shadow var(--dur-normal) var(--ease),
              border-color var(--dur-normal) var(--ease);
}
.ch-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.ch-card--flat {
  border: none;
  box-shadow: none;
}
.ch-card--flat:hover {
  box-shadow: none;
}

/* ── KPI Rail ── */
.ch-kpi-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--kpi-rail-bg);
}
.ch-kpi-rail__item {
  padding: var(--kpi-rail-py) var(--kpi-rail-px);
  border-right: 1px solid var(--kpi-rail-divider);
}
.ch-kpi-rail__item:last-child {
  border-right: none;
}
.ch-kpi-rail__value {
  font-family: var(--kpi-value-font);
  font-size: var(--kpi-value-size);
  font-weight: var(--kpi-value-weight);
  color: var(--kpi-value-color);
  letter-spacing: var(--kpi-value-spacing);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.ch-kpi-rail__label {
  font-family: var(--kpi-label-font);
  font-size: var(--kpi-label-size);
  color: var(--kpi-label-color);
  letter-spacing: var(--kpi-label-spacing);
  text-transform: uppercase;
}

/* ── DataGrid ── */
.ch-datagrid {
  width: 100%;
  border-collapse: collapse;
}
.ch-datagrid th {
  background: var(--datagrid-header-bg);
  color: var(--datagrid-header-color);
  font-family: var(--datagrid-header-font);
  font-size: var(--datagrid-header-size);
  font-weight: 600;
  letter-spacing: var(--datagrid-header-spacing);
  text-transform: uppercase;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--datagrid-divider);
}
.ch-datagrid td {
  font-family: var(--datagrid-row-font);
  font-size: var(--datagrid-row-size);
  color: var(--text);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--datagrid-divider);
  height: var(--datagrid-row-height);
  vertical-align: middle;
}
.ch-datagrid tr:hover td {
  background: var(--datagrid-hover);
}
.ch-datagrid .mono {
  font-family: var(--datagrid-mono);
}
.ch-datagrid .muted {
  color: var(--datagrid-muted);
}
.ch-datagrid .accent {
  color: var(--datagrid-accent);
  font-weight: 700;
}

/* ── Sidebar Nav ── */
.ch-sidebar-nav__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: var(--sidebar-item-height);
  padding: 0 var(--sidebar-item-px);
  font-family: var(--sidebar-item-font);
  font-size: var(--sidebar-item-size);
  font-weight: 500;
  letter-spacing: var(--sidebar-item-spacing);
  text-transform: uppercase;
  color: var(--sidebar-item-color);
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all var(--dur-fast) var(--ease);
}
.ch-sidebar-nav__item:hover {
  background: var(--state-hover-overlay);
  color: var(--text);
}
.ch-sidebar-nav__item.is-active {
  background: var(--sidebar-active-bg);
  color: var(--sidebar-active-color);
  border-left-color: var(--sidebar-active-border);
  font-weight: 600;
}
.ch-sidebar-nav__badge {
  margin-left: auto;
  font-family: var(--sidebar-badge-font);
  font-size: var(--sidebar-badge-size);
  color: var(--text-muted);
}

/* ── Badge ── */
.ch-badge {
  display: inline-flex;
  padding: 4px 10px;
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}
.ch-badge--red    { background: rgba(150,30,35,0.1);  color: var(--red-brand); }
.ch-badge--green  { background: rgba(34,197,94,0.1);  color: var(--status-online-alt); }
.ch-badge--blue   { background: rgba(59,130,246,0.1); color: var(--color-info-alt); }
.ch-badge--orange { background: rgba(245,158,11,0.1); color: #d97706; }
.ch-badge--gray   { background: var(--alpha-4);       color: var(--text-caption); }
.ch-badge--fill-red   { background: var(--red-brand); color: var(--white); }
.ch-badge--fill-green { background: var(--status-online-alt); color: var(--white); }
.ch-badge--fill-blue  { background: var(--color-info-alt); color: var(--white); }

/* ── Button ── */
.ch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: var(--size-md-height);
  padding: 0 var(--size-md-px);
  font-family: var(--sans);
  font-size: var(--size-md-font);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.ch-btn--primary {
  background: var(--red-brand);
  color: var(--white);
}
.ch-btn--primary:hover {
  background: var(--red-brand-hover);
}
.ch-btn--secondary {
  background: var(--charcoal);
  color: var(--white);
}
.ch-btn--secondary:hover {
  background: var(--charcoal-hover);
}
.ch-btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.ch-btn--ghost:hover {
  background: var(--state-hover-overlay);
  border-color: var(--charcoal);
}
.ch-btn--sm { height: var(--size-sm-height); padding: 0 var(--size-sm-px); font-size: var(--size-sm-font); }
.ch-btn--lg { height: var(--size-lg-height); padding: 0 var(--size-lg-px); font-size: var(--size-lg-font); }
.ch-btn:disabled,
.ch-btn[disabled] {
  opacity: var(--state-disabled-opacity);
  pointer-events: none;
}
.ch-btn:focus-visible {
  box-shadow: var(--state-focus-ring);
  outline: none;
}

/* ── Form Elements ── */
.ch-input {
  display: block;
  width: 100%;
  height: var(--size-md-height);
  padding: 0 var(--size-md-px);
  font-family: var(--sans);
  font-size: var(--size-md-font);
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--alpha-12);
  outline: none;
  transition: border-color var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease);
}
.ch-input::placeholder {
  color: var(--text-muted);
}
.ch-input:focus {
  border-color: var(--charcoal);
  box-shadow: var(--state-focus-ring-inset);
}
.ch-input--error {
  border-color: var(--state-error-border);
  background: var(--state-error-bg);
}
.ch-input--sm { height: var(--size-sm-height); padding: 0 var(--size-sm-px); font-size: var(--size-sm-font); }
.ch-label {
  display: block;
  font-family: var(--type-label-font);
  font-size: var(--type-label-size);
  font-weight: var(--type-label-weight);
  letter-spacing: var(--type-label-spacing);
  color: var(--type-label-color);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}
.ch-field {
  margin-bottom: var(--space-5);
}

/* ── Text Utilities ── */
.ch-text-mono  { font-family: var(--mono); }
.ch-text-serif { font-family: var(--serif); }
.ch-text-muted { color: var(--text-muted); }
.ch-text-caption { color: var(--text-caption); }
.ch-text-accent { color: var(--red-brand); }
.ch-text-xs   { font-size: var(--text-xs); }
.ch-text-sm   { font-size: var(--text-sm); }
.ch-text-base { font-size: var(--text-base); }
.ch-text-lg   { font-size: var(--text-lg); }
.ch-text-xl   { font-size: var(--text-xl); }
.ch-text-2xl  { font-size: var(--text-2xl); }

/* ── Spacing Utilities ── */
.ch-mt-0  { margin-top: 0; }
.ch-mt-4  { margin-top: var(--space-4); }
.ch-mt-6  { margin-top: var(--space-6); }
.ch-mt-8  { margin-top: var(--space-8); }
.ch-mb-0  { margin-bottom: 0; }
.ch-mb-4  { margin-bottom: var(--space-4); }
.ch-mb-6  { margin-bottom: var(--space-6); }
.ch-mb-8  { margin-bottom: var(--space-8); }
.ch-p-4   { padding: var(--space-4); }
.ch-p-6   { padding: var(--space-6); }
.ch-p-8   { padding: var(--space-8); }
.ch-px-4  { padding-left: var(--space-4); padding-right: var(--space-4); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .ch-container {
    padding: 0 var(--content-px-mobile);
  }
  .ch-grid--2,
  .ch-grid--3,
  .ch-grid--4 {
    grid-template-columns: 1fr;
  }
  .ch-sidebar-layout {
    grid-template-columns: 1fr;
  }
  .ch-sidebar-layout__sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .ch-kpi-rail {
    grid-template-columns: repeat(2, 1fr);
  }
  .ch-hero-layout {
    min-height: 80vh;
    padding: var(--space-8) var(--content-px-mobile);
  }
  .ch-hide-mobile {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .ch-hide-desktop {
    display: none !important;
  }
}

@media (max-width: 480px) {
  .ch-kpi-rail {
    grid-template-columns: 1fr;
  }
  .ch-grid--2 {
    grid-template-columns: 1fr;
  }
}

/* ══════════════════════════════════
   b44 Hero — 통일 Hero 시스템 (모든 sub-page 공통)
══════════════════════════════════ */
.b44-hero {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: calc(104px + var(--space-8)) var(--content-px) var(--space-12);
}
.b44-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--mono);
  font-size: var(--text-11);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
}
.b44-breadcrumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.b44-breadcrumb a:hover {
  color: var(--red-brand);
  border-color: var(--red-brand-subtle);
}
.b44-breadcrumb .current {
  color: var(--text);
  font-weight: 600;
}
.b44-hero-label {
  display: block;
  font-family: var(--mono);
  font-size: var(--text-11);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}
.b44-hero-title {
  font-family: var(--sans);
  font-size: clamp(2.6rem, 6.5vw, 5.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.04;
  color: var(--text);
  margin: 0 0 var(--space-6);
  max-width: 14ch;
}
.b44-hero-title .accent {
  color: var(--red-brand);
}
.b44-hero-desc {
  font-size: var(--text-xl);
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 46ch;
  margin: 0 0 var(--space-8);
}
.b44-prompt-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: min(100%, 560px);
  margin-bottom: var(--space-7);
}
.b44-prompt-input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text);
  font-family: var(--sans);
  font-size: var(--text-lg);
  padding: 14px 16px;
  outline: none;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.b44-prompt-input::placeholder { color: var(--text-muted); }
.b44-prompt-input:focus {
  border-color: var(--red-brand);
  box-shadow: var(--focus-ring-sm);
}
.b44-prompt-btn {
  border: none;
  background: var(--charcoal);
  color: var(--white);
  font-family: var(--mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 16px 22px;
  cursor: pointer;
  transition: background var(--dur-normal) var(--ease), transform var(--dur-normal) var(--ease);
}
.b44-prompt-btn:hover {
  background: var(--red-brand);
  transform: translateY(-1px);
}
.b44-pill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.b44-pill-tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: var(--text-11);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--bg-card);
  padding: 8px 10px;
  text-decoration: none;
}
/* 3줄 네비 페이지 (컴포넌트 카테고리 탭) — 자동 감지 */
.sys-nav:has(.sys-sub-tabs + .sys-sub-tabs) ~ .b44-hero {
  padding-top: calc(132px + var(--space-8));
}

@media (max-width: 768px) {
  .b44-hero {
    padding: calc(92px + var(--space-6)) var(--content-px-mobile) var(--space-10);
  }
  .sys-nav:has(.sys-sub-tabs + .sys-sub-tabs) ~ .b44-hero {
    padding-top: calc(118px + var(--space-6));
  }
  .b44-hero-title { max-width: none; }
  .b44-hero-desc { font-size: var(--text-md); }
  .b44-prompt-bar { width: 100%; }
  .b44-prompt-input { font-size: var(--text-base); padding: 12px 14px; }
  .b44-prompt-btn { padding: 14px 16px; }
}