/* RetroBIOS custom theme */

/* ── Color palette ── */
:root {
  --rb-primary: #4a4e8a;
  --rb-primary-light: #6366a0;
  --rb-primary-dark: #363870;
  --rb-accent: #e8594f;
  --rb-success: #2e7d32;
  --rb-warning: #f57c00;
  --rb-danger: #c62828;
  --rb-info: #1565c0;
  --rb-muted: #78909c;
  --rb-surface: #f5f6fa;
  --rb-border: #e0e3eb;
  --rb-text-secondary: #546e7a;
}

[data-md-color-scheme="slate"] {
  --rb-surface: #1e1e2e;
  --rb-border: #313244;
  --rb-text-secondary: #a6adc8;
}

/* ── Material theme overrides ── */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: var(--rb-primary);
  --md-primary-fg-color--light: var(--rb-primary-light);
  --md-primary-fg-color--dark: var(--rb-primary-dark);
  --md-accent-fg-color: var(--rb-accent);
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color: var(--rb-primary-light);
  --md-accent-fg-color: var(--rb-accent);
}

/* ── Hero section (home page) ── */
.rb-hero {
  background: linear-gradient(135deg, var(--rb-primary) 0%, var(--rb-primary-dark) 100%);
  color: white;
  padding: 2.5rem 2rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.rb-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.04) 100%);
  pointer-events: none;
}

.rb-hero h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  font-weight: 700;
  color: white !important;
  border: none;
}

.rb-hero p {
  margin: 0;
  opacity: 0.9;
  font-size: 1.1rem;
}

/* ── Stat cards ── */
.rb-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.rb-stat {
  background: var(--rb-surface);
  border: 1px solid var(--rb-border);
  border-radius: 8px;
  padding: 1.2rem;
  text-align: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.rb-stat:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.rb-stat .rb-stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--rb-primary);
  line-height: 1.2;
  display: block;
}

[data-md-color-scheme="slate"] .rb-stat .rb-stat-value {
  color: var(--rb-primary-light);
}

.rb-stat .rb-stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--rb-text-secondary);
  margin-top: 0.3rem;
  display: block;
}

/* ── Progress bars (inline) ── */
.rb-progress {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
}

.rb-progress-bar {
  flex: 1;
  height: 6px;
  background: var(--rb-border);
  border-radius: 3px;
  overflow: hidden;
  min-width: 60px;
}

.rb-progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s ease;
}

.rb-progress-fill[data-level="high"] { background: var(--rb-success); }
.rb-progress-fill[data-level="mid"] { background: var(--rb-warning); }
.rb-progress-fill[data-level="low"] { background: var(--rb-danger); }

.rb-progress-text {
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  min-width: 3.5em;
  text-align: right;
}

/* ── Status badges ── */
.rb-badge {
  display: inline-block;
  padding: 0.15em 0.6em;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.5;
  white-space: nowrap;
}

.rb-badge-success { background: #e8f5e9; color: #1b5e20; }
.rb-badge-warning { background: #fff3e0; color: #e65100; }
.rb-badge-danger { background: #ffebee; color: #b71c1c; }
.rb-badge-info { background: #e3f2fd; color: #0d47a1; }
.rb-badge-muted { background: #eceff1; color: #455a64; }

[data-md-color-scheme="slate"] .rb-badge-success { background: #1b5e20; color: #a5d6a7; }
[data-md-color-scheme="slate"] .rb-badge-warning { background: #e65100; color: #ffcc80; }
[data-md-color-scheme="slate"] .rb-badge-danger { background: #b71c1c; color: #ef9a9a; }
[data-md-color-scheme="slate"] .rb-badge-info { background: #0d47a1; color: #90caf9; }
[data-md-color-scheme="slate"] .rb-badge-muted { background: #37474f; color: #b0bec5; }

/* ── Tables ── */
.md-typeset table:not([class]) {
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.85rem;
  border: 1px solid var(--rb-border);
  border-radius: 8px;
  overflow: hidden;
}

.md-typeset table:not([class]) th {
  background: var(--rb-surface);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--rb-text-secondary);
  padding: 0.75rem 1rem;
  position: sticky;
  top: 0;
  z-index: 1;
}

.md-typeset table:not([class]) td {
  padding: 0.6rem 1rem;
  border-top: 1px solid var(--rb-border);
}

.md-typeset table:not([class]) tbody tr:hover {
  background: rgba(74, 78, 138, 0.04);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tbody tr:hover {
  background: rgba(99, 102, 160, 0.08);
}

/* Zebra striping */
.md-typeset table:not([class]) tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.015);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

/* ── Platform cards (home page) ── */
.rb-platform-row td:first-child img {
  vertical-align: middle;
  border-radius: 4px;
}

/* ── Quick start grid ── */
.rb-quickstart {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}

.rb-quickstart-item {
  background: var(--rb-surface);
  border: 1px solid var(--rb-border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.rb-quickstart-item code {
  background: transparent;
  font-weight: 600;
  color: var(--rb-primary);
}

/* ── Section separators ── */
.rb-section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rb-border);
}

/* ── Methodology steps ── */
.rb-methodology ol {
  counter-reset: method-step;
  list-style: none;
  padding-left: 0;
}

.rb-methodology ol li {
  counter-increment: method-step;
  padding: 0.6rem 0 0.6rem 2.5rem;
  position: relative;
}

.rb-methodology ol li::before {
  content: counter(method-step);
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 1.8rem;
  height: 1.8rem;
  background: var(--rb-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
}

/* ── Classification badges (emulators) ── */
.rb-cls-official_port { border-left: 3px solid var(--rb-success); }
.rb-cls-community_fork { border-left: 3px solid var(--rb-info); }
.rb-cls-pure_libretro { border-left: 3px solid var(--rb-primary); }
.rb-cls-game_engine { border-left: 3px solid #7b1fa2; }
.rb-cls-enhanced_fork { border-left: 3px solid #00838f; }
.rb-cls-frozen_snapshot { border-left: 3px solid var(--rb-muted); }
.rb-cls-embedded_hle { border-left: 3px solid #4e342e; }
.rb-cls-launcher { border-left: 3px solid #37474f; }

/* ── Gap analysis priority markers ── */
.rb-gap-required {
  color: var(--rb-danger);
  font-weight: 600;
}

.rb-gap-optional {
  color: var(--rb-muted);
}

/* ── Scrollable table container improvements ── */
.md-typeset__scrollwrap {
  margin: 1rem 0;
}

/* ── Footer timestamp ── */
.rb-timestamp {
  font-size: 0.8rem;
  color: var(--rb-text-secondary);
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rb-border);
}

/* ── Info card (platform/emulator metadata) ── */
.rb-info-card {
  background: var(--rb-surface);
  border: 1px solid var(--rb-border);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin: 1rem 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.3rem 1.2rem;
  font-size: 0.9rem;
}

.rb-info-card dt {
  font-weight: 600;
  color: var(--rb-text-secondary);
  white-space: nowrap;
}

.rb-info-card dd {
  margin: 0;
}

/* ── File entry cards (emulator detail) ── */
.rb-file-entry {
  background: var(--rb-surface);
  border: 1px solid var(--rb-border);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin: 0.75rem 0;
}

.rb-file-entry-required {
  border-left: 3px solid var(--rb-danger);
}

.rb-file-entry-optional {
  border-left: 3px solid var(--rb-muted);
}

.rb-file-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.rb-file-header code {
  font-size: 0.95rem;
  font-weight: 700;
}

.rb-file-entry ul {
  margin: 0.3rem 0 0;
  padding-left: 1.2rem;
}

.rb-file-entry li {
  font-size: 0.85rem;
  margin: 0.15rem 0;
}

/* ── Hash display (truncated with tooltip) ── */
.rb-hash {
  font-family: monospace;
  font-size: 0.78rem;
  color: var(--rb-text-secondary);
  cursor: help;
  letter-spacing: -0.02em;
}

/* System page file cards */
.rb-sys-file {
  background: var(--rb-surface);
  border: 1px solid var(--rb-border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin: 0.6rem 0;
}

.rb-sys-file > p:first-child {
  margin-top: 0;
}

.rb-sys-file ul {
  margin: 0.3rem 0 0;
  padding-left: 1rem;
  font-size: 0.85rem;
}

.rb-sys-file li {
  margin: 0.1rem 0;
}

/* Emulator metadata card */
.rb-meta-card {
  background: var(--rb-surface);
  border: 1px solid var(--rb-border);
  border-radius: 8px;
  padding: 0.8rem 0;
  margin: 1rem 0;
  overflow: hidden;
}

.rb-meta-card table {
  border: none !important;
  margin: 0 !important;
  border-radius: 0 !important;
}

.rb-meta-card th {
  display: none;
}

.rb-meta-card td:first-child {
  font-weight: 600;
  color: var(--rb-text-secondary);
  white-space: nowrap;
  width: 140px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.rb-meta-card td {
  border-top: 1px solid var(--rb-border) !important;
}

.rb-meta-card tr:first-child td {
  border-top: none !important;
}

/* ── Platform detail: coverage bar ── */
.rb-coverage-bar {
  background: var(--rb-border);
  border-radius: 4px;
  height: 8px;
  overflow: hidden;
  margin: 0.5rem 0;
  max-width: 300px;
}

.rb-coverage-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--rb-success);
}

/* ── Emulator index: section accent ── */
.md-typeset h2 .rb-cls-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 0.4rem;
  vertical-align: middle;
}

.rb-dot-official_port { background: var(--rb-success); }
.rb-dot-community_fork { background: var(--rb-info); }
.rb-dot-pure_libretro { background: var(--rb-primary); }
.rb-dot-game_engine { background: #7b1fa2; }
.rb-dot-enhanced_fork { background: #00838f; }
.rb-dot-frozen_snapshot { background: var(--rb-muted); }
.rb-dot-embedded_hle { background: #4e342e; }
.rb-dot-launcher { background: #37474f; }
.rb-dot-other { background: #9e9e9e; }

/* ── Cross-ref: classification in table ── */
.rb-cls-label {
  font-size: 0.8rem;
  padding: 0.1em 0.5em;
  border-radius: 4px;
  background: var(--rb-surface);
  border: 1px solid var(--rb-border);
  white-space: nowrap;
}

/* ── Buttons ── */
.md-typeset .md-button {
  border-radius: 6px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
}

/* Pack button in tables: smaller */
.md-typeset table .md-button {
  font-size: 0.75rem;
  padding: 0.3em 0.8em;
}

/* ── Hide permalink anchors in hero ── */
.rb-hero .headerlink {
  display: none;
}

/* ── Compact stat variant ── */
.rb-stats-compact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.rb-stats-compact .rb-stat {
  padding: 0.6rem 1rem;
  flex: 1;
  min-width: 100px;
}

.rb-stats-compact .rb-stat-value {
  font-size: 1.3rem;
}

.rb-stats-compact .rb-stat-label {
  font-size: 0.7rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .rb-hero {
    padding: 1.5rem;
  }
  .rb-hero h1 {
    font-size: 1.5rem;
  }
  .rb-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  .rb-stat {
    padding: 0.8rem;
  }
  .rb-stat .rb-stat-value {
    font-size: 1.4rem;
  }
  .rb-stat .rb-stat-label {
    font-size: 0.7rem;
  }
  .rb-file-entry {
    padding: 0.7rem 0.8rem;
  }
  .rb-sys-file {
    padding: 0.6rem 0.8rem;
  }
}

@media (max-width: 480px) {
  .rb-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .rb-hero h1 {
    font-size: 1.3rem;
  }
}