/* Mahjong Heritage Codex Modal · Cultural Guide */
.codex-modal {
  position: fixed;
  inset: 0;
  background: rgba(14, 22, 17, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 12000;
  animation: codexFadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.codex-modal.hidden {
  display: none;
}

@keyframes codexFadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

.codex-card {
  background: linear-gradient(165deg, #fffefb 0%, #f7f2ea 100%);
  border: 1px solid rgba(201, 154, 69, 0.35);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
  border-radius: 20px;
  width: 100%;
  max-width: 860px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: #1a241e;
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.codex-header {
  padding: 22px 28px 18px;
  background: linear-gradient(180deg, rgba(201, 154, 69, 0.08) 0%, rgba(201, 154, 69, 0.02) 100%);
  border-bottom: 1px solid rgba(201, 154, 69, 0.2);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.codex-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #c99a45;
  margin: 0 0 4px 0;
}

.codex-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 26px;
  font-weight: 700;
  color: #1c3528;
  margin: 0;
  letter-spacing: -0.01em;
}

.codex-close-btn {
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #4a5d52;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.codex-close-btn:hover {
  background: rgba(0, 0, 0, 0.1);
  color: #1c3528;
  transform: scale(1.05);
}

.codex-tabs {
  display: flex;
  padding: 0 28px;
  gap: 8px;
  background: #fbf8f2;
  border-bottom: 1px solid #e7ded0;
  overflow-x: auto;
}

.codex-tab {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 12px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #63756b;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s ease;
}

.codex-tab:hover {
  color: #1c3528;
}

.codex-tab.active {
  color: #1c3528;
  border-bottom-color: #c99a45;
}

.codex-body {
  padding: 24px 28px;
  overflow-y: auto;
  flex: 1;
  line-height: 1.6;
}

.codex-section {
  display: none;
}

.codex-section.active {
  display: block;
  animation: codexTabFade 0.2s ease;
}

@keyframes codexTabFade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.codex-section h3 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 20px;
  color: #1c3528;
  margin: 0 0 12px 0;
}

.codex-section p {
  color: #3b4d42;
  font-size: 14px;
  margin: 0 0 16px 0;
}

.codex-grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 18px 0;
}

.codex-card-item {
  background: #ffffff;
  border: 1px solid #e3d9cb;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.codex-card-item h4 {
  margin: 0 0 8px 0;
  font-size: 15px;
  color: #1c3528;
  display: flex;
  align-items: center;
  gap: 8px;
}

.codex-card-item p {
  font-size: 13px;
  color: #55675c;
  margin: 0;
}

/* Comparison Table */
.codex-table-wrap {
  overflow-x: auto;
  border: 1px solid #e3d9cb;
  border-radius: 12px;
  background: #ffffff;
  margin: 16px 0;
}

.codex-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}

.codex-table th, .codex-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #eee5d8;
}

.codex-table th {
  background: #fbf7ef;
  font-weight: 700;
  color: #1c3528;
  white-space: nowrap;
}

.codex-table tr:last-child td {
  border-bottom: none;
}

.codex-table tr:hover td {
  background: #faf8f3;
}

.codex-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  background: #eef5f1;
  color: #1c523a;
}

.codex-footer {
  padding: 16px 28px;
  background: #fbf8f2;
  border-top: 1px solid #e7ded0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: #718479;
}