/* whichllm — Swiss 3-Zone Design System */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;

  /* Default theme (深空 · Deep Space) */
  --bg: #0f172a; --surface: #1e293b; --surface-hover: #334155;
  --text: #e2e8f0; --text-dim: #94a3b8;
  --accent: #38bdf8; --accent-dim: #7dd3fc; --accent-rgb: 56,189,248;
  --accent-on: #0f172a;
  --border: #334155; --border-light: #1e293b;
  --green: #4ade80; --yellow: #fbbf24; --red: #f87171;
  --hero-from: #0f172a; --hero-to: #1e293b;
  --hover-tint: rgba(255,255,255,0.04);
  --even-row-tint: rgba(255,255,255,0.015);
  --card-bg: #1e293b;
  --kpi-card-bg: rgba(255,255,255,0.03);
}

/* ===== Swiss Style (Dark, accent swap) ===== */
[data-theme="ikb"] {
  --accent: #002FA7; --accent-dim: #3b6dd4; --accent-rgb: 0,47,167;
  --accent-on: #ffffff;
}
[data-theme="lemon"] {
  --accent: #FFD500; --accent-dim: #ffe44d; --accent-rgb: 255,213,0;
  --accent-on: #0f172a;
}
[data-theme="green"] {
  --accent: #C5E803; --accent-dim: #d8f44d; --accent-rgb: 197,232,3;
  --accent-on: #0f172a;
}
[data-theme="orange"] {
  --accent: #FF6B35; --accent-dim: #ff8f66; --accent-rgb: 255,107,53;
  --accent-on: #ffffff;
}

/* ===== Magazine Style (Light, full palette swap) ===== */
[data-theme="ink"] {
  --bg: #f1efea; --surface: #e8e5de; --surface-hover: #ddd9cf;
  --text: #0a0a0b; --text-dim: #5a5a5a;
  --accent: #0a0a0b; --accent-dim: #5a5a5a; --accent-rgb: 10,10,11;
  --accent-on: #ffffff;
  --border: #d4d0c8; --border-light: #e0ddd5;
  --green: #2e7d32; --yellow: #e6a800; --red: #c62828;
  --hero-from: #e8e5de; --hero-to: #f1efea;
  --hover-tint: rgba(0,0,0,0.04); --even-row-tint: rgba(0,0,0,0.02);
  --card-bg: #e8e5de; --kpi-card-bg: rgba(0,0,0,0.02);
  --font-display: 'Noto Serif SC', 'Georgia', 'Times New Roman', serif;
}
[data-theme="indigo"] {
  --bg: #f1f3f5; --surface: #e4e8ec; --surface-hover: #d5dbe0;
  --text: #0a1f3d; --text-dim: #4a607a;
  --accent: #0a1f3d; --accent-dim: #4a607a; --accent-rgb: 10,31,61;
  --accent-on: #ffffff; --border: #c8d0d8; --border-light: #dde3e8;
  --green: #2e7d32; --yellow: #e6a800; --red: #c62828;
  --hero-from: #e4e8ec; --hero-to: #f1f3f5;
  --hover-tint: rgba(0,0,0,0.04); --even-row-tint: rgba(0,0,0,0.02);
  --card-bg: #e4e8ec; --kpi-card-bg: rgba(0,0,0,0.02);
  --font-display: 'Noto Serif SC', 'Georgia', 'Times New Roman', serif;
}
[data-theme="forest"] {
  --bg: #f5f1e8; --surface: #ece7da; --surface-hover: #e0d9c8;
  --text: #1a2e1f; --text-dim: #4a604a;
  --accent: #1a2e1f; --accent-dim: #4a604a; --accent-rgb: 26,46,31;
  --accent-on: #ffffff; --border: #d4cebe; --border-light: #e0dccc;
  --green: #2e7d32; --yellow: #e6a800; --red: #c62828;
  --hero-from: #ece7da; --hero-to: #f5f1e8;
  --hover-tint: rgba(0,0,0,0.04); --even-row-tint: rgba(0,0,0,0.02);
  --card-bg: #ece7da; --kpi-card-bg: rgba(0,0,0,0.02);
  --font-display: 'Noto Serif SC', 'Georgia', 'Times New Roman', serif;
}
[data-theme="kraft"] {
  --bg: #eedfc7; --surface: #e0d0b6; --surface-hover: #d2c0a2;
  --text: #2a1e13; --text-dim: #6a5a45;
  --accent: #2a1e13; --accent-dim: #6a5a45; --accent-rgb: 42,30,19;
  --accent-on: #ffffff; --border: #c8b898; --border-light: #d8cbb0;
  --green: #3d7a3a; --yellow: #c9950a; --red: #b71c1c;
  --hero-from: #e0d0b6; --hero-to: #eedfc7;
  --hover-tint: rgba(0,0,0,0.04); --even-row-tint: rgba(0,0,0,0.02);
  --card-bg: #e0d0b6; --kpi-card-bg: rgba(0,0,0,0.03);
  --font-display: 'Noto Serif SC', 'Georgia', 'Times New Roman', serif;
}
[data-theme="dune"] {
  --bg: #f0e6d2; --surface: #e3d7bf; --surface-hover: #d5c7ab;
  --text: #1f1a14; --text-dim: #5a5045;
  --accent: #1f1a14; --accent-dim: #5a5045; --accent-rgb: 31,26,20;
  --accent-on: #ffffff; --border: #ccc0a8; --border-light: #ddd2bd;
  --green: #3d7a3a; --yellow: #c9950a; --red: #b71c1c;
  --hero-from: #e3d7bf; --hero-to: #f0e6d2;
  --hover-tint: rgba(0,0,0,0.04); --even-row-tint: rgba(0,0,0,0.02);
  --card-bg: #e3d7bf; --kpi-card-bg: rgba(0,0,0,0.02);
  --font-display: 'Noto Serif SC', 'Georgia', 'Times New Roman', serif;
}

/* === Base === */
html { font-size: 15px; }
body {
  font-family: var(--font-body);
  background: var(--bg); color: var(--text);
  line-height: 1.5; min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ═══ ZONE 1: Hero ═══ */
.hero {
  position: relative; overflow: hidden;
  padding: 56px 0 40px; text-align: center;
  background: linear-gradient(180deg, var(--hero-from) 0%, var(--hero-to) 100%);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, border-color 0.3s;
}
/* CSS grid background (Swiss micro grid) */
.hero-grid-bg {
  position: absolute; inset: 0; opacity: 0.12;
  background-image:
    linear-gradient(var(--accent) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  font-weight: 200;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 8px;
  position: relative;
}
.hero-subtitle {
  font-size: clamp(1rem, 1.6vw, 1.4rem);
  color: var(--text-dim);
  margin-bottom: 4px;
}
.hero-meta {
  font-size: 0.82rem; color: var(--text-dim);
  margin-bottom: 24px;
}

/* Hero search wrapper (for autocomplete positioning) */
.hero-search-wrapper {
  max-width: 520px; margin: 0 auto 16px;
  position: relative;
}
.hero-search {
  margin: 0;
}

/* Autocomplete dropdown */
.autocomplete-dropdown {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 50;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: none;
  display: none;
  max-height: 320px; overflow-y: auto;
}
.autocomplete-dropdown.open { display: block; }
.ac-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 16px; cursor: pointer;
  transition: background 0.1s;
}
.ac-item:hover { background: var(--hover-tint); }
.ac-item:not(:last-child) { border-bottom: 1px solid var(--border-light); }
.ac-name { font-size: 0.88rem; color: var(--text); font-weight: 500; }
.ac-cat {
  font-size: 0.72rem; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.04em;
}

/* Search */
.hero-search {
  max-width: 520px; margin: 0 auto 16px;
}
.search-input-wrap {
  position: relative;
}
.search-clear-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  padding: 2px 10px;
  display: none;
  line-height: 1;
  z-index: 5;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.search-clear-btn:hover {
  color: var(--text);
  background: var(--hover-tint);
}
.search-clear-btn.visible {
  display: block;
}
.hero-search input {
  width: 100%; padding: 12px 36px 12px 18px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); font-size: 0.95rem;
  text-align: center;
  transition: border-color 0.2s, background 0.3s;
}
.hero-search input:focus {
  outline: none; border-color: var(--accent);
  background: var(--surface-hover);
}
.hero-search input::placeholder { color: var(--text-dim); opacity: 0.6; }

/* Hero chips */
.hero-chips {
  display: flex; gap: 8px; justify-content: center;
  flex-wrap: wrap; margin-bottom: 28px;
}
.hero-chip {
  padding: 6px 16px;
  background: transparent; color: var(--accent-dim);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  font-size: 0.82rem; font-weight: 500;
  cursor: pointer; transition: all 0.2s;
}
.hero-chip:hover {
  background: var(--accent); color: var(--accent-on);
  border-color: var(--accent);
}

.hero-chip.trending-chip {
  border-style: dashed;
  opacity: 0.7;
  font-weight: 400;
}
.hero-chip.trending-chip:hover { opacity: 1; }

/* KPI */
.kpi-row {
  display: flex; justify-content: center; gap: 24px;
  flex-wrap: wrap;
}
.kpi-item {
  background: var(--kpi-card-bg);
  border: 1px solid var(--border-light);
  padding: 20px 32px;
  min-width: 140px;
  text-align: center;
}
.kpi-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 200;
  color: var(--accent);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.kpi-label {
  display: block;
  font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--text-dim);
  margin-top: 4px;
}

/* ═══ Top Nav ═══ */
.top-nav {
  display: flex; align-items: center; gap: 32px;
  padding: 14px 32px; max-width: 1200px; margin: 0 auto;
}
.top-nav-logo { font-weight: 800; font-size: 1rem; color: var(--text); letter-spacing: -0.02em; }
.top-nav-links { display: flex; gap: 20px; margin-left: 0; }
.top-nav-links a { color: var(--text-dim); text-decoration: none; font-size: 0.82rem; font-weight: 400; transition: color .15s; }
.top-nav-links a:hover { color: var(--accent); }

.section-more {
  font-weight: 400; font-size: 0.78rem; color: var(--text-dim);
  text-decoration: none; margin-left: 12px; vertical-align: middle;
}
.section-more:hover { color: var(--accent); }

.about-commands { margin: 12px 0; }
.about-commands p { margin-bottom: 8px; }
.about-commands code { font-size: 0.82rem; word-break: break-all; }

/* ═══ ZONE 2: Hot Hardware Cards ═══ */
.hot-section {
  padding: 28px 0 8px;
}
.section-label {
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 600;
  color: var(--text-dim); margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.hot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}
.hot-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 16px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.hot-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.hot-card-name {
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 600;
  color: var(--text); margin-bottom: 4px;
}
.hot-card-score {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 200;
  color: var(--accent);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.hot-card-model {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.hot-card-label {
  font-size: 0.68rem; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-dim);
  margin-top: 6px;
}
.hot-card.top {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--card-bg));
}
.hot-card.top .hot-card-name { color: var(--accent); }

/* ═══ ZONE 2.5: Changelog ═══ */
.changelog-section {
  padding: 8px 0 0;
}
.changelog-body {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 16px 20px;
  font-size: 0.88rem;
  line-height: 1.7;
  transition: background 0.3s, border-color 0.3s;
}
.changelog-summary {
  color: var(--text);
  margin-bottom: 8px;
}
.changelog-summary strong {
  color: var(--accent);
  font-weight: 600;
}
.changelog-meta {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.changelog-details {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.changelog-details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.72rem;
}
.changelog-details ul {
  margin: 6px 0 0 16px;
  list-style: none;
}
.changelog-details li {
  position: relative;
  padding: 2px 0;
}
.changelog-details li::before {
  content: "";
  position: absolute; left: -12px; top: 9px;
  width: 4px; height: 4px;
  background: var(--accent);
}
.changelog-new { color: var(--green); }
.changelog-swap { color: var(--yellow); }
.changelog-delta-up { color: var(--green); }
.changelog-delta-down { color: var(--red); }
.changelog-footer { margin-top: 8px; }
.changelog-footer a { color: var(--text-dim); font-size: 0.82rem; text-decoration: none; }
.changelog-footer a:hover { color: var(--accent); }
.changelog-empty { color: var(--text-dim); font-size: 0.85rem; padding: 8px 0; }

/* ═══ ZONE 3: Detail Table ═══ */
.detail-section { padding: 20px 0 32px; }
.detail-toolbar { padding-bottom: 12px; }

.filter-row {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end;
  margin-bottom: 8px;
}
.filter-group { min-width: 130px; }
.filter-group label {
  display: block; font-size: 0.72rem; font-weight: 600;
  margin-bottom: 4px; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.filter-group select, .filter-group input {
  width: 100%; padding: 8px 12px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}
.filter-group select:focus, .filter-group input:focus {
  outline: none; border-color: var(--accent);
}
.filter-group input[type="text"] { min-width: 160px; }
.filter-group input[type="number"] { min-width: 90px; }
.filter-info { flex: 0 0 auto; display: flex; align-items: flex-end; padding-bottom: 4px; }
#result-count { font-size: 0.82rem; color: var(--text-dim); white-space: nowrap; }

.chip-bar { display: flex; gap: 6px; flex-wrap: wrap; padding: 0 0 4px; }
.chip {
  padding: 5px 14px; background: transparent; color: var(--text-dim);
  border: 1px solid var(--border); font-size: 0.82rem;
  cursor: pointer; transition: all 0.2s;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.active { background: var(--accent); color: var(--accent-on); border-color: var(--accent); font-weight: 600; }

/* Table */
.table-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px;
}
.table-title {
  font-family: var(--font-display);
  font-weight: 600; font-size: 0.82rem;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em;
}
.table-wrapper { overflow-x: auto; border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
thead { background: var(--surface); position: sticky; top: 0; z-index: 2; }
th {
  padding: 9px 10px; text-align: left; font-weight: 600; color: var(--text-dim);
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em;
  white-space: nowrap; border-bottom: 1px solid var(--border);
  user-select: none; position: relative;
}
.sortable { cursor: pointer; user-select: none; }
.sortable::after { content: " ↕"; opacity: 0.3; font-size: 0.75em; }
.sortable.asc::after { content: " ↑"; opacity: 1; color: var(--accent); }
.sortable.desc::after { content: " ↓"; opacity: 1; color: var(--accent); }
th.sortable:hover { color: var(--accent); }
td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}
tbody tr { transition: background 0.1s; }
tbody tr:hover { background: var(--hover-tint); }
tbody tr:nth-child(even) { background: var(--even-row-tint); }
tbody tr:nth-child(even):hover { background: var(--hover-tint); }
.gpu-name { white-space: nowrap; min-width: 100px; }
.gpu-name strong { color: var(--text); }
.rank { font-weight: 700; color: var(--accent); text-align: center; width: 28px; }
.model-name { min-width: 160px; max-width: 260px; overflow: hidden; text-overflow: ellipsis; }
.org-badge { display: inline-block; padding: 0 5px; font-size: 0.6rem; font-weight: 700; color: #fff; border-radius: 3px; vertical-align: middle; margin-right: 2px; letter-spacing: 0.3px; cursor: pointer; }
.org-badge:hover { opacity: 0.8; }
.country-badge { font-size: 0.65rem; margin-right: 2px; cursor: pointer; }
.country-badge:hover { opacity: 0.7; }
.model-name a { color: var(--text); text-decoration: none; }
.model-name a:hover { color: var(--accent); text-decoration: underline; }
.quant { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-dim); }
.cell-num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.cell-likes { text-align: right; font-variant-numeric: tabular-nums; color: var(--green); font-size: 0.85em; }
.cell-downloads { text-align: right; font-variant-numeric: tabular-nums; color: var(--accent-dim); font-size: 0.85em; }
.score-high { color: var(--green); font-weight: 700; }
.score-mid { color: var(--yellow); font-weight: 600; }
.score-low { color: var(--red); font-weight: 500; }
.evidence { font-size: 0.75rem; color: var(--text-dim); }
.evidence-direct { color: var(--green); font-weight: 600; }
.evidence-line-interp { color: var(--yellow); font-weight: 600; }
.evidence-none { color: var(--text-dim); }

/* Buttons */
.btn {
  display: inline-block; padding: 7px 16px;
  font-size: 0.82rem; font-weight: 600; cursor: pointer; border: none;
  transition: all 0.15s;
}
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--surface-hover); border-color: var(--accent); color: var(--accent); }

/* Pagination */
.pagination {
  display: flex; justify-content: center; align-items: center;
  gap: 12px; padding: 12px 0 4px;
  font-size: 0.85rem; color: var(--text-dim);
}
.page-btn {
  padding: 6px 14px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border);
  font-size: 0.82rem; cursor: pointer;
  transition: all 0.15s;
}
.page-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.page-btn:disabled { opacity: 0.35; cursor: default; }
.page-info { display: flex; align-items: center; gap: 4px; }
.page-input {
  width: 48px; padding: 4px 6px; text-align: center;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); font-size: 0.82rem;
}
.page-input:focus { outline: none; border-color: var(--accent); }

/* About */
.about { padding: 32px 0; border-top: 1px solid var(--border); }
.about h2 { font-size: 1rem; margin-bottom: 10px; }
.about p { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 6px; }
.about code { background: var(--surface); padding: 2px 6px; font-size: 0.82rem; }
.about a { color: var(--accent); text-decoration: none; }
.about a:hover { text-decoration: underline; }
.credit { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* Build version */
.build-version {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 8px;
  font-family: var(--font-mono);
}

/* Scroll to top button */
.scroll-top-btn {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.scroll-top-btn:hover {
  background: var(--surface-hover);
  color: var(--accent);
  border-color: var(--accent);
}
.scroll-top-btn.visible {
  display: flex;
}

/* Row highlight for keyboard navigation */
.row-highlight {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
  background: var(--hover-tint) !important;
}

/* D1 status badge */
.d1-badge {
  font-size: 0.7rem; font-weight: 600;
  padding: 2px 8px;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.d1-badge.d1-ok { background: var(--green); color: var(--bg); }
.d1-badge.d1-kv { background: var(--yellow); color: #000; }
.d1-badge.d1-off { background: var(--red); color: #fff; }

/* Theme Switcher */
.theme-switcher {
  position: fixed; top: 16px; right: 16px; z-index: 100;
}
.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--surface); color: var(--text-dim);
  border: 1px solid var(--border);
  cursor: pointer; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, color 0.2s;
}
.theme-toggle:hover { background: var(--surface-hover); color: var(--accent); }
.theme-panel {
  position: absolute; top: 48px; right: 0;
  background: var(--surface); border: 1px solid var(--border);
  padding: 12px; min-width: 260px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  display: none;
}
.theme-panel.open { display: block; }
.theme-panel h3 {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim); margin-bottom: 8px;
}
.theme-group { margin-bottom: 12px; }
.theme-group:last-child { margin-bottom: 0; }
.theme-options { display: flex; gap: 6px; flex-wrap: wrap; }
.theme-swatch {
  width: 36px; height: 36px;
  border: 2px solid transparent; cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}
.theme-swatch:hover { transform: scale(1.1); }
.theme-swatch.active { border-color: var(--accent); }
.theme-swatch[data-theme="default"] { background: linear-gradient(135deg, #0f172a 50%, #38bdf8 50%); }
.theme-swatch[data-theme="ikb"] { background: #002FA7; }
.theme-swatch[data-theme="lemon"] { background: #FFD500; }
.theme-swatch[data-theme="green"] { background: #C5E803; }
.theme-swatch[data-theme="orange"] { background: #FF6B35; }
.theme-swatch[data-theme="ink"] { background: linear-gradient(135deg, #f1efea 50%, #0a0a0b 50%); }
.theme-swatch[data-theme="indigo"] { background: linear-gradient(135deg, #f1f3f5 50%, #0a1f3d 50%); }
.theme-swatch[data-theme="forest"] { background: linear-gradient(135deg, #f5f1e8 50%, #1a2e1f 50%); }
.theme-swatch[data-theme="kraft"] { background: linear-gradient(135deg, #eedfc7 50%, #2a1e13 50%); }
.theme-swatch[data-theme="dune"] { background: linear-gradient(135deg, #f0e6d2 50%, #1f1a14 50%); }

/* Utilities */
.hidden { display: none; }
.loading { text-align: center; padding: 24px; color: var(--text-dim); }

/* === Skeleton Loading === */
.skeleton-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.skeleton-line {
  height: 14px;
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-hover) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
}
.skeleton-line.w60 { width: 60%; }
.skeleton-line.w40 { width: 40%; }
.skeleton-line.w80 { width: 80%; }
.skeleton-line.w30 { width: 30%; }
.skeleton-line.h32 { height: 32px; }
.skeleton-cell { height: 20px; background: linear-gradient(90deg, var(--surface) 25%, var(--surface-hover) 50%, var(--surface) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 3px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* === Modal Overlay === */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  width: min(90vw, 900px);
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 80%;
}
.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-dim);
  padding: 4px 8px;
  border-radius: 4px;
}
.modal-close:hover { background: var(--hover-tint); color: var(--text); }
.modal-body {
  padding: 16px 24px;
  overflow-y: auto;
  max-height: calc(80vh - 60px);
}
.modal-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.modal-table th {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  color: var(--text-dim);
  white-space: nowrap;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.modal-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-light);
}
.modal-table tr:hover { background: var(--hover-tint); }
.modal-table .model-name a { color: var(--accent); text-decoration: none; }
.modal-table .model-name a:hover { text-decoration: underline; }

/* === Data Freshness Warning === */
.freshness-warn { color: var(--red); font-weight: 600; font-size: 0.8rem; }

/* Table actions bar */
.table-actions { display: flex; gap: 8px; align-items: center; }

/* === Highlight === */
.highlight {
  background: #ffe066;
  color: #000;
  padding: 0 2px;
  border-radius: 2px;
}

/* === VRAM Range === */
.vram-range {
  display: flex;
  align-items: center;
  gap: 4px;
}
.vram-input {
  width: 70px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
}

/* === GPU Link === */
.gpu-link { color: var(--text); text-decoration: none; cursor: pointer; }
.gpu-link:hover { color: var(--accent); text-decoration: underline; }
.hf-link { margin-left: 4px; font-size: 12px; text-decoration: none; color: var(--text-dim); }
.hf-link:hover { color: var(--accent); }

/* Trends Section */
.trends-section {
  padding: 28px 0 8px;
}
.trends-controls {
  margin-bottom: 16px;
}
.trends-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
}
.trends-tab {
  padding: 8px 20px;
  background: transparent;
  color: var(--text-dim);
  border: none;
  border-bottom: 2px solid transparent;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s;
}
.trends-tab:hover {
  color: var(--text);
}
.trends-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}
.trends-chart {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 20px;
  min-height: 100px;
}
.trends-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-light);
}
.trends-bar-row:last-child {
  border-bottom: none;
}
.trends-rank {
  width: 24px;
  text-align: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.trends-model-name {
  width: 220px;
  font-size: 0.82rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.trends-bar-track {
  flex: 1;
  height: 20px;
  background: var(--bg);
  border-radius: 2px;
  overflow: hidden;
}
.trends-bar-fill {
  height: 100%;
  background: var(--accent);
  opacity: 0.7;
  border-radius: 2px;
  transition: width 0.3s ease;
  min-width: 2px;
}
.trends-bar-fill.downloads {
  background: var(--accent);
  opacity: 0.7;
}
.trends-bar-fill.likes {
  background: var(--green);
  opacity: 0.7;
}
.trends-count {
  width: 80px;
  text-align: right;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.trends-meta {
  width: 70px;
  text-align: right;
  font-size: 0.72rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}
.trends-gpu-count {
  min-width: 44px;
  text-align: right;
  font-size: 0.65rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

/* Popularity trend line chart */
.trend-chart-container { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border); }
.trend-chart-container h3 { font-size: 0.82rem; font-weight: 600; margin: 0 0 8px; color: var(--text); }
.trend-chart-svg { width: 100%; height: 140px; }
.trend-chart-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; font-size: 0.72rem; }
.trend-chart-legend-item { display: flex; align-items: center; gap: 4px; cursor: pointer; color: var(--text); }
.trend-chart-legend-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.trend-chart-legend-item.inactive { opacity: 0.35; }

/* Explore section */
.explore-controls { display: flex; flex-direction: column; gap: 8px; margin-bottom: 8px; }
.explore-dims, .explore-metrics { display: flex; gap: 4px; flex-wrap: wrap; }
.explore-dim-btn, .explore-metric-btn { padding: 4px 12px; font-size: 0.75rem; font-weight: 600; border: 1px solid var(--border); background: var(--surface); color: var(--text-dim); cursor: pointer; border-radius: 6px; }
.explore-dim-btn.active, .explore-metric-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.explore-dim-btn:hover, .explore-metric-btn:hover { border-color: var(--accent); color: var(--accent); }
.explore-stats { font-size: 0.75rem; color: var(--text-dim); margin-bottom: 6px; }
.explore-chart { display: flex; flex-direction: column; gap: 4px; }
.explore-bar-row { display: flex; align-items: center; gap: 8px; padding: 3px 6px; border-radius: 4px; cursor: pointer; transition: background 0.1s; }
.explore-bar-row:hover { background: var(--surface-hover); }
.explore-bar-rank { font-size: 0.72rem; font-weight: 700; color: var(--text-dim); min-width: 20px; text-align: right; }
.explore-bar-key { font-size: 0.78rem; color: var(--text); min-width: 80px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.explore-bar-track { flex: 1; height: 18px; background: var(--surface); border-radius: 4px; overflow: hidden; }
.explore-bar-fill { height: 100%; border-radius: 4px; transition: width 0.3s; min-width: 2px; }
.explore-bar-fill.org { background: var(--accent); }
.explore-bar-fill.country { background: var(--green); }
.explore-bar-fill.profile { background: var(--yellow); }
.explore-bar-fill.category { background: var(--red); }
.explore-bar-fill.quant { background: var(--accent-dim); }
.explore-bar-val { font-size: 0.72rem; font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; min-width: 50px; text-align: right; }
.explore-bar-meta { font-size: 0.65rem; color: var(--text-dim); min-width: 60px; text-align: right; }

/* Quick Discovery */
.qdiscovery-section { margin-bottom: 16px; }
.qdiscovery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.qdiscovery-col { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
.qdiscovery-col-title { font-size: 0.8rem; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.qdiscovery-card { display: flex; align-items: center; gap: 6px; padding: 5px 6px; border-radius: 4px; cursor: pointer; transition: background 0.1s; }
.qdiscovery-card:hover { background: var(--surface-hover); }
.qdiscovery-model { flex: 1; font-size: 0.78rem; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qdiscovery-val { font-size: 0.78rem; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; min-width: 40px; text-align: right; }
.qdiscovery-meta { font-size: 0.68rem; color: var(--text-dim); min-width: 36px; text-align: right; }

/* Collapse panels */
.collapse-panel { margin-top: 8px; }
.collapse-header { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; cursor: pointer; font-size: 0.82rem; font-weight: 600; color: var(--text); border-bottom: 1px solid var(--border); user-select: none; }
.collapse-header:hover { color: var(--accent); }
.collapse-arrow { font-size: 0.75rem; transition: transform 0.15s; }
.collapse-body { padding-top: 8px; }

/* Advanced filters */
.advanced-toggle { padding: 4px 10px; font-size: 0.72rem; font-weight: 600; border: 1px solid var(--border); background: var(--surface); color: var(--text-dim); cursor: pointer; border-radius: 6px; white-space: nowrap; }
.advanced-toggle:hover { border-color: var(--accent); color: var(--accent); }
.advanced-filters { margin-top: 6px; }
.advanced-filters-inner { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.filter-group-basic select, .filter-search-input { padding: 6px 10px; font-size: 0.82rem; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text); }
.filter-search-input { width: 200px; }

/* Usage distribution */
.usage-dist { display: flex; gap: 12px; margin: 8px 0 4px; flex-wrap: wrap; font-size: 0.75rem; }
.usage-dist-item { display: flex; align-items: center; gap: 4px; color: var(--text); }
.usage-dist-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.usage-dist-num { font-weight: 700; font-variant-numeric: tabular-nums; color: var(--text); }

/* Release date cell */
.cell-date { font-size: 0.75rem; color: var(--text-dim); white-space: nowrap; }
.tag-new { display: inline-block; font-size: 0.55rem; font-weight: 700; padding: 0 4px; background: var(--green); color: #fff; border-radius: 3px; margin-left: 2px; vertical-align: middle; }

@media (max-width: 768px) {
  .hero { padding: 32px 0 24px; }
  .hero-title { font-size: 2.4rem; }
  .kpi-item { padding: 14px 20px; min-width: 100px; flex: 1; }
  .hot-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .filter-row { flex-direction: column; }
  .filter-group { min-width: 100%; }
  .theme-panel { right: -8px; min-width: 220px; }
  .hero-grid-bg { background-size: 24px 24px; }

  /* Mobile card layout: transform table into cards */
  .table-wrapper {
    overflow-x: visible;
    border: none;
    background: transparent;
  }
  #main-table,
  #main-table thead,
  #main-table tbody,
  #main-table tr,
  #main-table th,
  #main-table td {
    display: block;
  }
  #main-table thead {
    display: none;
  }
  #main-table tbody {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  #main-table tr {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 12px 14px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 12px;
  }
  #main-table tr:hover {
    background: var(--surface);
  }
  #main-table tr:nth-child(even) {
    background: var(--surface);
  }
  #main-table td {
    border: none;
    padding: 2px 0;
    font-size: 0.78rem;
    min-width: 0;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
  }
  #main-table td::before {
    content: attr(data-label);
    display: block;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1px;
  }
  #main-table td.rank {
    text-align: left;
    width: auto;
  }
  #main-table td.cell-likes,
  #main-table td.cell-downloads {
    text-align: left;
  }
  #main-table td.gpu-name {
    white-space: normal;
  }
  #main-table td.model-name {
    max-width: none;
    grid-column: 1 / -1;
  }
  #main-table td.evidence {
    grid-column: 1 / -1;
  }
  /* Pagination mobile */
  .pagination {
    flex-wrap: wrap;
  }
  .page-input {
    width: 42px;
  }
}