:root {
  --paper: #f7f5f1;
  --canvas: #ffffff;
  --ink: #111318;
  --muted-ink: #5a6270;
  --line: #e3e0d8;
  --slate: #d7dde5;
  --civic-blue: #193a6b;
  --archive-green: #2e5e4e;
  --source-amber: #8a5a18;
  --alert-red: #8b2e2e;
  --radius: 18px;
  --shadow-soft: 0 16px 50px rgba(17, 19, 24, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Pretendard, Inter, "Noto Sans KR", system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(25, 58, 107, 0.03), transparent 18%);
}

.site-shell {
  width: min(1440px, calc(100vw - 56px));
  margin: 0 auto;
  padding-bottom: 96px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 18px;
  border-bottom: 1px solid rgba(17, 19, 24, 0.08);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(247, 245, 241, 0.9);
}

.brand-lockup {
  display: grid;
  gap: 2px;
}

.brand-kicker,
.section-kicker,
.eyebrow,
.doc-kicker,
.card-label,
.meta-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-ink);
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-size: 22px;
  font-weight: 800;
}

.topnav {
  display: flex;
  gap: 26px;
}

.topnav a {
  color: var(--muted-ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  /* F-004: raise effective touch target above 44px without visible chrome */
  padding: 12px 2px;
  line-height: 1;
}

.topnav a:hover {
  color: var(--civic-blue);
}

.hero {
  display: grid;
  grid-template-columns: 1.28fr 0.72fr;
  gap: 56px;
  padding: 96px 0 72px;
  align-items: end;
}

.hero-board {
  padding: 64px 0 44px;
}

.hero h1,
.split-intro h2,
.preview-header h2 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(36px, 4.4vw, 60px);
  text-wrap: balance;
}

.hero-body {
  max-width: 680px;
  color: var(--muted-ink);
  font-size: 17px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--civic-blue);
  color: white;
}

.btn-secondary {
  background: rgba(255,255,255,0.72);
  color: var(--ink);
  border-color: rgba(17,19,24,0.12);
}

.hero-panel {
  display: flex;
  align-items: stretch;
}

.coverage-card,
.surface-block,
.document-pane,
.archive-list {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(17, 19, 24, 0.08);
  box-shadow: var(--shadow-soft);
}

.coverage-card {
  border-radius: 30px;
  padding: 30px;
  width: 100%;
  min-height: 320px;
  display: grid;
  align-content: space-between;
}

.coverage-grid {
  display: grid;
  gap: 18px;
}

.coverage-value {
  display: block;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 700;
  line-height: 0.95;
  font-variant-numeric: tabular-nums;
}

.coverage-unit {
  display: block;
  margin-top: 10px;
  color: var(--muted-ink);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-right: 8px;
  margin-bottom: 8px;
}

.badge-final {
  color: var(--archive-green);
  background: rgba(46, 94, 78, 0.09);
}

.badge-source {
  color: var(--source-amber);
  background: rgba(138, 90, 24, 0.1);
}

.badge-meta,
.badge-raw {
  color: var(--civic-blue);
  background: rgba(25, 58, 107, 0.1);
}

.badge-press {
  color: var(--civic-blue);
  background: rgba(25, 58, 107, 0.1);
}

/* F-002: hero coverage card neutralizes its badges so they don't introduce a
   3rd accent color on the first viewport (DESIGN.md: max two accents per view).
   Colored variants still apply in archive rows / summary lists where a badge's
   color carries real document-state meaning. */
.coverage-card .badge {
  color: var(--muted-ink);
  background: rgba(17, 19, 24, 0.05);
}

.split-intro {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 42px;
  padding: 42px 0 54px;
  border-top: 1px solid rgba(17, 19, 24, 0.08);
}

.split-intro h2 {
  font-size: clamp(28px, 3vw, 44px);
}

.support-copy {
  align-self: end;
  color: var(--muted-ink);
  font-size: 18px;
}

.surface-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 12px 0 72px;
}

.surface-block {
  border-radius: 24px;
  padding: 30px;
}

.surface-block h3 {
  margin: 0;
  font-size: 30px;
}

.feature-list {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted-ink);
}

.board-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0 0 28px;
}

.board-panel {
  padding: 18px 20px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(17, 19, 24, 0.08);
  border-radius: 18px;
}

.board-panel h3 {
  margin: 4px 0 8px;
  font-size: 22px;
}

.board-panel p:last-child {
  margin: 0;
  color: var(--muted-ink);
}

.reader-preview {
  padding: 34px 0 48px;
}

.reader-preview-press,
.browse-section {
  border-top: 1px solid rgba(17, 19, 24, 0.08);
  margin-top: 8px;
  padding-top: 42px;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 24px;
}

.preview-header h2 {
  font-size: clamp(24px, 2.4vw, 32px);
}

.reader-preview .document-head h3,
.reader-preview-press .document-head h3 {
  font-size: 24px;
}

.filter-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(17,19,24,0.1);
  color: var(--muted-ink);
  font-size: 13px;
  font-weight: 700;
}

.filter-chip.active {
  color: var(--civic-blue);
  border-color: rgba(25,58,107,0.25);
}

.reader-grid,
.browse-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 18px;
}

.archive-list,
.document-pane {
  border-radius: 24px;
  overflow: hidden;
}

.archive-list {
  background: rgba(255, 255, 255, 0.72);
}

.pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 6px 0;
}

.pager-btn {
  border: 1px solid rgba(17,19,24,0.12);
  background: rgba(255,255,255,0.75);
  border-radius: 999px;
  padding: 10px 14px;
  min-height: 44px;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.pager-btn:disabled {
  opacity: 0.45;
}

.pager-status {
  font-size: 13px;
  color: var(--muted-ink);
  font-weight: 700;
}

.archive-row {
  width: 100%;
  text-align: left;
  padding: 18px 18px 16px;
  border: 0;
  border-bottom: 1px solid rgba(17,19,24,0.08);
  background: transparent;
  cursor: pointer;
  font: inherit;
}

.archive-row:last-child {
  border-bottom: none;
}

.archive-row:hover {
  background: rgba(17, 19, 24, 0.03);
}

.archive-row.active {
  background: rgba(25, 58, 107, 0.045);
}

.row-title {
  margin: 0 0 8px;
  font-weight: 700;
}

.row-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted-ink);
  font-size: 14px;
  margin-bottom: 10px;
}

.document-pane {
  padding: 28px;
}

.document-head h3 {
  margin: 6px 0 16px;
  font-size: 34px;
  line-height: 1.15;
}

.doc-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(17,19,24,0.08);
}

.doc-meta-grid strong {
  display: block;
  margin-top: 6px;
  font-size: 15px;
}

.mode-switch {
  display: flex;
  gap: 8px;
  margin: 20px 0 24px;
  flex-wrap: wrap;
}

.mode {
  border: 1px solid rgba(17,19,24,0.12);
  background: transparent;
  border-radius: 999px;
  padding: 10px 14px;
  min-height: 44px;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted-ink);
}

.mode.active {
  color: var(--civic-blue);
  border-color: rgba(25,58,107,0.26);
  background: rgba(25,58,107,0.06);
}

.document-body {
  max-width: 74ch;
  font-size: 17px;
}

.document-body p {
  margin: 0 0 18px;
}

.document-body blockquote {
  margin: 24px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--civic-blue);
  background: rgba(25,58,107,0.05);
  color: var(--muted-ink);
}

.doc-links {
  margin: 24px 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.doc-links div {
  padding: 14px 16px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(17,19,24,0.08);
  border-radius: 16px;
}

.doc-links dt {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted-ink);
  font-weight: 700;
  margin-bottom: 8px;
}

.doc-links dd {
  margin: 0;
  font-family: "JetBrains Mono", "SFMono-Regular", monospace;
  font-size: 12px;
  color: var(--ink);
  word-break: break-all;
}

.inline-link {
  color: var(--civic-blue);
  font-weight: 700;
  text-decoration: none;
}

.institution-highlight {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.institution-highlight div {
  padding: 14px 16px;
  background: rgba(25, 58, 107, 0.05);
  border: 1px solid rgba(25, 58, 107, 0.08);
  border-radius: 16px;
}

.highlight-label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted-ink);
  font-weight: 700;
  margin-bottom: 8px;
}

.institution-highlight strong {
  font-size: 16px;
}

.summary-list {
  display: grid;
  gap: 12px;
}

.summary-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid rgba(17, 19, 24, 0.08);
}

.summary-row:last-child {
  border-bottom: none;
}

.summary-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.summary-press {
  color: var(--civic-blue);
  background: rgba(25, 58, 107, 0.1);
}

.summary-gazette {
  color: var(--archive-green);
  background: rgba(46, 94, 78, 0.1);
}

.summary-title {
  margin: 0 0 6px;
  font-weight: 700;
}

.summary-meta {
  margin: 0;
  color: var(--muted-ink);
  font-size: 14px;
}

@media (max-width: 1080px) {
  .hero,
  .board-strip,
  .reader-grid,
  .browse-grid,
  .preview-header,
  .doc-meta-grid,
  .doc-links,
  .institution-highlight {
    grid-template-columns: 1fr;
  }

  .preview-header {
    display: grid;
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(100vw - 24px, 1380px);
  }

  .topbar {
    display: grid;
    gap: 16px;
  }

  .topnav {
    flex-wrap: wrap;
    gap: 14px;
  }

  .hero {
    padding-top: 48px;
    gap: 28px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .document-head h3 {
    font-size: 28px;
  }
}