:root {
  --bg-canvas: #1e1612;
  --bg-surface: #30231a;
  --bg-surface-alt: #271c15;
  --bg-surface-hover: #3d2d22;
  --text-primary: #f5ecdf;
  --text-muted: #cbb9a3;
  --accent-primary: #f59e0b;
  --accent-secondary: #d97706;
  --accent-espresso: #1e1612;
  --border-subtle: #453326;
  --border-frame: #785233;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, Consolas, "SF Mono", Monaco, monospace;
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  padding: 18px;
  overflow-wrap: anywhere;
  hyphens: auto;
}

.site-frame {
  border: 1px solid var(--border-frame);
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px;
  background-color: var(--bg-canvas);
}

@media (max-width: 768px) {
  body { padding: 6px; }
  .site-frame { padding: 14px; }
}

/* Header */
.site-header {
  position: static;
  margin-bottom: 28px;
}

.header-capsule {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: var(--accent-espresso);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
}

.brand-title {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.desktop-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color 0.2s var(--ease-kinetic);
}

.desktop-nav a:hover,
.desktop-nav a.active {
  color: var(--accent-primary);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  line-height: 1;
  padding: 4px 8px;
  cursor: pointer;
}

.mobile-nav-panel {
  display: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  margin-top: 10px;
  padding: 14px;
  flex-direction: column;
  gap: 10px;
}

.mobile-nav-panel.open {
  display: flex;
}

.mobile-nav-panel a {
  color: var(--text-primary);
  text-decoration: none;
  font-family: var(--font-mono);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.9rem;
}

.mobile-nav-panel a:hover {
  background: var(--bg-surface-hover);
  color: var(--accent-primary);
}

@media (max-width: 860px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
}

/* Headings & Buttons */
h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.25;
}

.btn-pill {
  display: inline-block;
  background-color: var(--accent-primary);
  color: var(--accent-espresso);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  padding: 10px 22px;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: background-color 0.2s var(--ease-kinetic), transform 0.2s var(--ease-kinetic);
}

.btn-pill:hover {
  background-color: #fbbf24;
  transform: translateY(-2px);
}

.badge-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: #3e2e21;
  color: var(--accent-primary);
  padding: 2px 10px;
  border-radius: 9999px;
  border: 1px solid #5a4231;
}

/* Hero Band */
.hero-band {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 22px;
  margin-bottom: 30px;
}

.hero-accession {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-primary);
  margin-bottom: 6px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-band h1 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  margin-bottom: 10px;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 72ch;
  margin-bottom: 16px;
}

/* Stat Strip */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  margin-bottom: 36px;
}

.stat-item {
  padding: 16px 20px;
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
}

/* Catalog Rows (Strict Cardless Architecture) */
.section-block {
  margin-bottom: 48px;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 2px solid var(--accent-secondary);
  padding-bottom: 8px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.section-index {
  font-family: var(--font-mono);
  color: var(--accent-primary);
  font-size: 0.85rem;
}

.catalog-row {
  display: grid;
  grid-template-columns: 70px 1fr 220px 160px;
  gap: 18px;
  align-items: center;
  padding: 16px 4px;
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.2s ease;
}

.catalog-row:hover {
  background-color: var(--bg-surface-hover);
}

.row-icon-cell {
  display: flex;
  align-items: center;
  justify-content: center;
}

.row-round-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  background: var(--bg-surface);
  color: var(--accent-primary);
}

.row-main-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.row-main-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 3px;
  font-style: italic;
}

.row-meta-col {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.row-action-col {
  text-align: right;
}

@media (max-width: 820px) {
  .catalog-row {
    grid-template-columns: 50px 1fr;
    gap: 12px;
  }
  .row-meta-col, .row-action-col {
    grid-column: 2 / -1;
    text-align: left;
  }
}

/* Feature Two-Column Panel */
.split-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 24px;
  margin-bottom: 32px;
}

.split-feature img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border: 1px solid var(--border-subtle);
}

.split-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.split-content h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
  color: var(--accent-primary);
}

.split-content p {
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .split-feature { grid-template-columns: 1fr; }
  .split-feature img { height: 220px; }
}

/* Interactive Tabs Component */
.tab-widget {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  padding: 20px;
  margin-bottom: 32px;
}

.tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 14px;
  margin-bottom: 16px;
}

.tab-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: 4px;
}

.tab-btn.active, .tab-btn:hover {
  background: var(--accent-primary);
  color: var(--accent-espresso);
  border-color: var(--accent-primary);
  font-weight: 700;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* Accordion Details */
.curator-accordion {
  border-top: 1px solid var(--border-subtle);
  margin-bottom: 32px;
}

.acc-item {
  border-bottom: 1px solid var(--border-subtle);
}

.acc-toggle {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 16px 8px;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.acc-toggle span.mono-code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-primary);
  margin-right: 12px;
}

.acc-panel {
  display: none;
  padding: 0 8px 18px 8px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.acc-panel.open {
  display: block;
}

/* Reading Layout for Articles */
.reading-container {
  max-width: 72ch;
  margin: 0 auto 40px auto;
}

.reading-container p {
  margin-bottom: 18px;
  color: var(--text-muted);
}

.reading-container h2 {
  font-size: 1.45rem;
  margin: 32px 0 14px 0;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 6px;
}

.reading-container ul, .reading-container ol {
  margin-bottom: 20px;
  padding-left: 24px;
  color: var(--text-muted);
}

.reading-container li {
  margin-bottom: 8px;
}

.reading-container blockquote {
  border-left: 3px solid var(--accent-primary);
  padding-left: 18px;
  margin: 24px 0;
  font-style: italic;
  color: var(--text-primary);
  background: var(--bg-surface);
  padding: 14px 18px;
}

/* Contact / Tool Box */
.plain-tool-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 24px;
  margin-bottom: 36px;
}

.tool-form-group {
  margin-bottom: 16px;
}

.tool-form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-primary);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.tool-form-group input,
.tool-form-group select,
.tool-form-group textarea {
  width: 100%;
  background: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.tool-form-group input:focus,
.tool-form-group textarea:focus {
  outline: 1px solid var(--accent-primary);
}

.tool-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.tool-output {
  margin-top: 20px;
  padding: 14px;
  background: var(--bg-canvas);
  border: 1px dashed var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  white-space: pre-wrap;
  color: var(--text-primary);
  display: none;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  margin-bottom: 30px;
  border: 1px solid var(--border-subtle);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

th {
  background: var(--bg-surface);
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent-primary);
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-subtle);
}

td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

tr:nth-child(even) td {
  background: var(--bg-surface-alt);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-frame);
  padding-top: 28px;
  margin-top: 50px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.footer-brand-summary h4 {
  font-family: var(--font-mono);
  color: var(--accent-primary);
  margin-bottom: 8px;
}

.footer-links-col h5 {
  font-family: var(--font-mono);
  color: var(--text-primary);
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.footer-links-col ul {
  list-style: none;
}

.footer-links-col li {
  margin-bottom: 6px;
}

.footer-links-col a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links-col a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

@media (max-width: 768px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}