/* ==========================================================
   Voynich Manuscript Glyph Atlas -- Global Styles
   Parchment/manuscript aesthetic, scholarly tool
   ========================================================== */

:root {
  --parchment: #faf8f0;
  --parchment-dark: #f0ece0;
  --parchment-darker: #e4ddd0;
  --ink: #1a1a2e;
  --ink-light: #3d3d5c;
  --ink-faint: #6b6b8a;
  --accent: #8b4513;
  --accent-light: #a0522d;
  --accent-dark: #6b3410;
  --gold: #b8860b;
  --gold-light: #d4a825;
  --red-accent: #8b2500;
  --border: #c9bfa8;
  --border-light: #d8ceb8;
  --shadow: rgba(26, 26, 46, 0.08);
  --shadow-md: rgba(26, 26, 46, 0.12);
  --freq-high: #2d5a2d;
  --freq-medium: #5a5a2d;
  --freq-low: #5a3d2d;
  --freq-rare: #5a2d2d;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: Georgia, 'Times New Roman', 'Palatino Linotype', serif;
  background: var(--parchment);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
}

/* ---- Typography ---- */

h1, h2, h3, h4 {
  font-weight: normal;
  line-height: 1.3;
  color: var(--ink);
}

h1 {
  font-size: 2.2rem;
  letter-spacing: 0.02em;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--ink-light);
}

p { margin-bottom: 1rem; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
a:hover {
  border-bottom-color: var(--accent);
}

code, .mono {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.92em;
  background: var(--parchment-dark);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

/* ---- Layout ---- */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.page-header {
  background: linear-gradient(180deg, #2c2c4a 0%, var(--ink) 100%);
  color: var(--parchment);
  padding: 1.5rem 0;
  border-bottom: 3px solid var(--gold);
}

.page-header h1 {
  color: var(--parchment);
  font-size: 1.8rem;
}

.page-header .subtitle {
  color: #b0a890;
  font-size: 1rem;
  font-style: italic;
}

/* ---- Navigation ---- */

.main-nav {
  background: var(--ink);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid #444;
}

.main-nav .container {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

.main-nav a {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  color: #c9bfa8;
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--parchment);
  border-bottom-color: var(--gold);
}

.main-nav .nav-brand {
  font-weight: bold;
  color: var(--gold);
  margin-right: 1rem;
  font-size: 1rem;
  letter-spacing: 0.05em;
}

.main-nav .nav-brand:hover {
  color: var(--gold-light);
}

/* ---- Main Content ---- */

main {
  padding: 2rem 0 4rem;
}

section {
  margin-bottom: 3rem;
}

/* ---- Cards ---- */

.card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px var(--shadow);
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 4px 16px var(--shadow-md);
}

/* ---- Glyph Grid ---- */

.glyph-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

.glyph-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.glyph-card:hover {
  box-shadow: 0 4px 16px var(--shadow-md);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.glyph-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent), 0 4px 16px var(--shadow-md);
}

.glyph-card .glyph-svg {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 72px;
  margin-bottom: 0.5rem;
}

.glyph-card .glyph-eva {
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--ink);
}

.glyph-card .glyph-id {
  font-size: 0.75rem;
  color: var(--ink-faint);
  margin-top: 0.25rem;
}

.glyph-card .freq-badge {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  font-size: 0.65rem;
  padding: 0.15em 0.5em;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: sans-serif;
  font-weight: 600;
}

.freq-high { background: #d4edda; color: var(--freq-high); }
.freq-medium { background: #fff3cd; color: var(--freq-medium); }
.freq-low { background: #fde2d0; color: var(--freq-low); }
.freq-rare { background: #f5d5d0; color: var(--freq-rare); }

/* ---- Glyph Detail Panel ---- */

.glyph-detail {
  background: white;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 4px 16px var(--shadow-md);
  display: none;
}

.glyph-detail.visible {
  display: block;
}

.glyph-detail .detail-header {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.glyph-detail .detail-svg {
  flex-shrink: 0;
  background: var(--parchment-dark);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.glyph-detail .detail-info {
  flex: 1;
}

.glyph-detail .detail-info h3 {
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: 0.25rem;
}

.glyph-detail table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.glyph-detail td {
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid var(--parchment-dark);
  vertical-align: top;
}

.glyph-detail td:first-child {
  font-weight: bold;
  color: var(--ink-faint);
  width: 140px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---- Filter Bar ---- */

.filter-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--parchment-dark);
  border-radius: 6px;
  align-items: center;
}

.filter-bar label {
  font-size: 0.88rem;
  color: var(--ink-faint);
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.filter-btn {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  font-family: Georgia, serif;
  font-size: 0.88rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: white;
  color: var(--ink-light);
  cursor: pointer;
  transition: all 0.15s;
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* ---- Tables ---- */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.data-table th {
  background: var(--ink);
  color: var(--parchment);
  padding: 0.6rem 0.75rem;
  text-align: left;
  font-weight: normal;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  user-select: none;
  position: sticky;
  top: 45px;
  z-index: 10;
}

.data-table th:hover {
  background: var(--ink-light);
}

.data-table th .sort-arrow {
  margin-left: 0.3rem;
  opacity: 0.5;
}

.data-table th.sorted .sort-arrow {
  opacity: 1;
}

.data-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--parchment-dark);
  vertical-align: middle;
}

.data-table tbody tr:hover {
  background: var(--parchment-dark);
}

.data-table .word-glyphs {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

/* ---- Stat Boxes ---- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-box {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 1.25rem;
  text-align: center;
  box-shadow: 0 2px 6px var(--shadow);
}

.stat-box .stat-number {
  font-size: 2.2rem;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.stat-box .stat-label {
  font-size: 0.85rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---- Theory Cards ---- */

.theory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.theory-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px var(--shadow);
}

.theory-card h3 {
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.theory-card .theory-type {
  display: inline-block;
  font-size: 0.75rem;
  font-family: sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2em 0.6em;
  border-radius: 3px;
  background: var(--parchment-dark);
  color: var(--ink-faint);
  margin-bottom: 0.75rem;
}

.theory-card .plausibility {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.plausibility-bar {
  flex: 1;
  height: 8px;
  background: var(--parchment-dark);
  border-radius: 4px;
  overflow: hidden;
}

.plausibility-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.4s ease;
}

.plausibility-score {
  font-weight: bold;
  font-size: 0.9rem;
  min-width: 2.5rem;
  text-align: right;
}

.theory-card .notes {
  font-size: 0.88rem;
  color: var(--ink-faint);
  font-style: italic;
  line-height: 1.5;
  margin-top: 0.5rem;
}

.mapping-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

.mapping-table th {
  background: var(--parchment-dark);
  padding: 0.35rem 0.5rem;
  text-align: center;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--ink-faint);
  position: static;
}

.mapping-table td {
  padding: 0.35rem 0.5rem;
  text-align: center;
  border-bottom: 1px solid var(--parchment-dark);
  font-family: 'Courier New', monospace;
}

/* ---- Builder ---- */

.builder-area {
  background: white;
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 2rem;
  min-height: 120px;
  margin-bottom: 1.5rem;
  text-align: center;
}

.builder-area .composed-word {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 1rem;
}

.builder-area .placeholder-text {
  color: var(--ink-faint);
  font-style: italic;
}

.builder-controls {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.builder-controls button {
  font-family: Georgia, serif;
  font-size: 0.9rem;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: white;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s;
}

.builder-controls button:hover {
  background: var(--parchment-dark);
  border-color: var(--accent);
}

.builder-controls button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.builder-controls button.primary:hover {
  background: var(--accent-dark);
}

.builder-input {
  font-family: 'Courier New', monospace;
  font-size: 1rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: white;
  color: var(--ink);
  width: 300px;
  max-width: 100%;
}

.builder-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(139, 69, 19, 0.15);
}

.decode-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.decode-result {
  background: var(--parchment-dark);
  border-radius: 6px;
  padding: 1rem;
  border-left: 3px solid var(--accent);
}

.decode-result .theory-name {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  margin-bottom: 0.25rem;
}

.decode-result .decoded-text {
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  color: var(--ink);
  word-break: break-all;
}

/* ---- Tier Preview ---- */

.tier-section {
  margin-bottom: 2rem;
}

.tier-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.tier-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-family: sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.25em 0.75em;
  border-radius: 3px;
  font-weight: 600;
}

.tier-1 { background: #d4edda; color: #155724; }
.tier-2 { background: #cce5ff; color: #004085; }
.tier-3 { background: #fff3cd; color: #856404; }
.tier-4 { background: #f5d5d0; color: #721c24; }

/* ---- Hero Section ---- */

.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(180deg, var(--ink) 0%, #2c2c4a 100%);
  color: var(--parchment);
  border-bottom: 3px solid var(--gold);
}

.hero h1 {
  font-size: 2.8rem;
  color: var(--parchment);
  margin-bottom: 0.75rem;
  letter-spacing: 0.03em;
}

.hero .subtitle {
  font-size: 1.15rem;
  color: #b0a890;
  font-style: italic;
  max-width: 700px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-glyphs {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 2rem;
  padding: 1rem 2rem;
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
}

/* ---- Nav Cards for Homepage ---- */

.nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.nav-card {
  display: block;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px var(--shadow);
  transition: all 0.2s;
  text-align: center;
}

.nav-card:hover {
  box-shadow: 0 6px 24px var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--accent);
}

.nav-card h3 {
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.nav-card p {
  font-size: 0.9rem;
  color: var(--ink-faint);
  margin-bottom: 0;
}

/* ---- Word Decoder Section ---- */

.decoder-section {
  background: var(--parchment-dark);
  border-radius: 8px;
  padding: 2rem;
  margin-bottom: 2rem;
}

/* ---- Chart Embed ---- */

.chart-container {
  text-align: center;
  margin: 2rem 0;
  overflow-x: auto;
}

.chart-container img,
.chart-container object {
  max-width: 100%;
  height: auto;
}

/* ---- Footer ---- */

.page-footer {
  background: var(--ink);
  color: #b0a890;
  padding: 2rem 0;
  font-size: 0.85rem;
  text-align: center;
  border-top: 2px solid var(--gold);
}

.page-footer a {
  color: var(--gold);
}

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero .subtitle { font-size: 1rem; }
  .container { padding: 0 1rem; }
  .glyph-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
  .glyph-detail .detail-header { flex-direction: column; }
  .main-nav a { padding: 0.5rem 0.75rem; font-size: 0.82rem; }
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.3rem; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .theory-grid { grid-template-columns: 1fr; }
  .decode-results { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .glyph-grid { grid-template-columns: repeat(3, 1fr); }
  .stat-grid { grid-template-columns: 1fr; }
  .filter-bar { flex-direction: column; }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--parchment-dark); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-faint); }

/* ---- Selection ---- */
::selection {
  background: rgba(139, 69, 19, 0.2);
  color: var(--ink);
}

/* ---- Print ---- */
@media print {
  .main-nav, .filter-bar, .builder-controls { display: none; }
  .page-header { background: white; color: black; border-bottom: 2px solid black; }
  .page-header h1 { color: black; }
  body { background: white; }
}