/* Awesome AI Anatomy -- GitHub Dark Theme */
:root {
  --bg: #0d1117;
  --bg-secondary: #161b22;
  --bg-card: #161b22;
  --bg-card-hover: #1c2333;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --text-link: #58a6ff;
  --accent: #58a6ff;
  --accent-green: #3fb950;
  --accent-yellow: #d29922;
  --accent-red: #f85149;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.3), 0 4px 12px rgba(0,0,0,0.2);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Noto Sans, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--text-link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #0d1117 0%, #161b22 50%, #1a2332 100%);
  border-bottom: 1px solid var(--border);
  padding: 4rem 1.5rem 3rem;
  text-align: center;
}
.hero-content { max-width: 700px; margin: 0 auto; }
.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(90deg, #58a6ff, #3fb950);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text);
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.hero-desc {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}
.hero-links { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s;
  text-decoration: none !important;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: #79c0ff; }
.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* Filters */
main { max-width: 1280px; margin: 0 auto; padding: 1.5rem; }

.filters { margin-bottom: 1.5rem; }
.search-box { margin-bottom: 1rem; }
.search-box input {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s;
}
.search-box input:focus { border-color: var(--accent); }
.search-box input::placeholder { color: var(--text-muted); }

.filter-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: end;
}
.filter-group { display: flex; flex-direction: column; gap: 0.3rem; }
.filter-group label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}
.filter-group select {
  padding: 0.5rem 0.8rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
  outline: none;
}
.filter-group select:focus { border-color: var(--accent); }

.active-tags { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.75rem; }
.active-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  background: rgba(88, 166, 255, 0.15);
  border: 1px solid var(--accent);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--accent);
  cursor: pointer;
}
.active-tag:hover { background: rgba(88, 166, 255, 0.3); }
.active-tag .remove { margin-left: 0.2rem; }

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.2s ease;
  text-decoration: none !important;
  color: var(--text);
}
.card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card-img {
  width: 100%;
  height: 180px;
  overflow: hidden;
  background: #0d1117;
  border-bottom: 1px solid var(--border);
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transition: opacity 0.2s;
}
.card:hover .card-img img { opacity: 1; }

.card-body { padding: 1rem; flex: 1; display: flex; flex-direction: column; }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  gap: 0.5rem;
}
.card-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
  font-size: 0.85rem;
}
.stars { color: var(--accent-yellow); font-weight: 600; }
.lang-badge {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  background: rgba(88, 166, 255, 0.12);
  border-radius: 4px;
  font-size: 0.78rem;
  color: var(--accent);
}

.key-finding {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
  flex: 1;
  line-height: 1.45;
}

.card-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tag {
  padding: 0.15rem 0.5rem;
  background: rgba(139, 148, 158, 0.12);
  border-radius: 12px;
  font-size: 0.72rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.tag:hover {
  background: rgba(88, 166, 255, 0.15);
  color: var(--accent);
}

.no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Top nav */
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.nav-back { font-weight: 600; }
.nav-github { color: var(--text-muted); }
.nav-github:hover { color: var(--text); }

/* Comparison page */
.comparison-page { max-width: 1400px; margin: 0 auto; padding: 2rem 1.5rem; }
.comparison-page h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.comparison-desc { color: var(--text-muted); margin-bottom: 2rem; }

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 2rem;
}

.comparison-table, .feature-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.comparison-table th, .comparison-table td,
.feature-table th, .feature-table td {
  padding: 0.65rem 0.8rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.comparison-table th, .feature-table th {
  background: var(--bg-secondary);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  position: sticky;
  top: 0;
  z-index: 1;
}
.comparison-table td:first-child a {
  font-weight: 600;
  color: var(--accent);
}
.key-finding-cell {
  white-space: normal !important;
  min-width: 200px;
  max-width: 300px;
}

.comparison-table tbody tr:hover,
.feature-table tbody tr:hover {
  background: var(--bg-card-hover);
}

/* Staff Pick Badge */
.staff-pick-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.1rem 0.5rem;
  background: linear-gradient(135deg, rgba(210, 153, 34, 0.2), rgba(210, 153, 34, 0.1));
  border: 1px solid var(--accent-yellow);
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-yellow);
  white-space: nowrap;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

/* Filter Presets */
.filter-presets {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}
.preset-btn {
  padding: 0.35rem 0.85rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  outline: none;
}
.preset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(88, 166, 255, 0.08);
}
.preset-btn.active {
  background: rgba(88, 166, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}
footer a { color: var(--text-muted); }
footer a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 768px) {
  .hero { padding: 2.5rem 1rem 2rem; }
  .hero h1 { font-size: 1.75rem; }
  .hero-subtitle { font-size: 1rem; }
  .grid { grid-template-columns: 1fr; }
  .filter-row { flex-direction: column; }
  .comparison-page { padding: 1.5rem 1rem; }

  /* Comparison table: wrap into card-style blocks on mobile */
  .comparison-table thead { display: none; }
  .comparison-table tbody tr {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    padding: 0.75rem;
  }
  .comparison-table tbody tr:hover {
    background: var(--bg-card-hover);
  }
  .comparison-table tbody td {
    display: flex;
    justify-content: space-between;
    padding: 0.35rem 0;
    border-bottom: 1px solid rgba(48, 54, 61, 0.5);
    white-space: normal;
  }
  .comparison-table tbody td:last-child {
    border-bottom: none;
  }
  .comparison-table tbody td::before {
    content: attr(data-label);
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    flex-shrink: 0;
    margin-right: 0.75rem;
  }
  .key-finding-cell {
    min-width: unset;
    max-width: unset;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.4rem; }
  .card-img { height: 140px; }
  main { padding: 1rem; }
}

/* Multi-select dropdown for project comparison */
.filter-bar {
  margin: 1.5rem 0;
  padding: 1rem;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
}
.filter-label {
  display: block;
  color: #8b949e;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}
.filter-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.filter-btn {
  background: #21262d;
  color: #c9d1d9;
  border: 1px solid #30363d;
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
}
.filter-btn:hover { border-color: #58a6ff; }

/* Multi-select component */
.multi-select { position: relative; }
.multi-select-input {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  min-height: 38px;
  padding: 4px 8px;
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  cursor: text;
}
.multi-select-input:focus-within { border-color: #58a6ff; }
.multi-select-input input {
  flex: 1;
  min-width: 120px;
  background: transparent;
  border: none;
  color: #c9d1d9;
  font-size: 0.85rem;
  outline: none;
  padding: 4px 0;
}
.multi-select-input input::placeholder { color: #484f58; }

/* Selected tags */
.ms-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #1f6feb;
  color: #fff;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  white-space: nowrap;
}
.ms-tag.all, .ms-tag.none {
  background: #21262d;
  color: #8b949e;
}
.ms-tag-x {
  cursor: pointer;
  font-size: 0.9rem;
  margin-left: 2px;
  opacity: 0.7;
}
.ms-tag-x:hover { opacity: 1; }

/* Dropdown */
.multi-select-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 100;
  max-height: 240px;
  overflow-y: auto;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
  margin-top: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.multi-select-dropdown.open { display: block; }
.ms-option {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 0.85rem;
  color: #c9d1d9;
  border-bottom: 1px solid #21262d;
}
.ms-option:hover { background: #21262d; }
.ms-option.selected {
  background: #0d2240;
  color: #58a6ff;
}
.ms-option.selected::before {
  content: "\2713 ";
  color: #58a6ff;
}

/* Detail columns toggle */
.detail-col { display: none; }
.detail-col.visible { display: table-cell; }
.detail-toggle-bar {
  margin: 1.5rem 0 0;
  display: flex;
  gap: 8px;
}
.detail-toggle-btn {
  padding: 6px 16px;
  font-weight: 600;
}
.detail-toggle-btn.active {
  background: rgba(88, 166, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}
.worth-stealing-cell {
  white-space: normal !important;
  min-width: 250px;
  max-width: 400px;
  font-size: 0.82rem;
  line-height: 1.4;
}

/* Mobile: detail columns as card rows */
@media (max-width: 768px) {
  .detail-col.visible { display: flex; }
}

/* Teardown landing pages */
.teardown-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}
.teardown-header {
  margin-bottom: 1.5rem;
}
.teardown-header h1 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.teardown-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.95rem;
}
.teardown-meta .stars {
  color: var(--accent-yellow);
  font-weight: 600;
}
.teardown-meta .lang {
  color: var(--accent);
  font-weight: 500;
}
.teardown-img {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 2rem;
  background: #0d1117;
}
.teardown-img img {
  width: 100%;
  height: auto;
  display: block;
}
.teardown-tldr {
  margin-bottom: 2rem;
}
.teardown-tldr h2 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  color: var(--accent);
}
.teardown-tldr p {
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}
.teardown-tldr .key-finding {
  color: var(--text-muted);
  font-size: 0.92rem;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 0.5rem;
}
.teardown-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

@media (max-width: 768px) {
  .teardown-page { padding: 1.5rem 1rem; }
  .teardown-header h1 { font-size: 1.5rem; }
  .teardown-cta { flex-direction: column; }
}