/* ── FaceHub Documentation — Desktop Optimized ── */

/* ── Root variables ── */
:root {
  --fh-content-max: 960px;
  --fh-sidebar-w: 260px;
  --fh-font-scale: 0.92;
}

/* ── Typography — tighter, smaller ── */
.md-typeset {
  font-size: 0.875rem;
  line-height: 1.65;
}

.md-typeset h1 {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: 0;
  margin-bottom: 1rem;
}

.md-typeset h2 {
  font-size: 1.25rem;
  font-weight: 650;
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

.md-typeset h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.4rem;
}

.md-typeset h4 {
  font-size: 0.92rem;
  font-weight: 600;
  margin-top: 1.2rem;
  margin-bottom: 0.3rem;
}

.md-typeset p {
  margin-bottom: 0.75rem;
}

.md-typeset ul,
.md-typeset ol {
  margin-bottom: 0.75rem;
  padding-left: 1.4rem;
}

.md-typeset li {
  margin-bottom: 0.25rem;
}

/* ── Content area — constrain width ── */
.md-content__inner {
  max-width: var(--fh-content-max);
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ── Code blocks — compact ── */
.md-typeset pre > code {
  font-size: 0.8rem;
  line-height: 1.55;
  padding: 0.8rem 1rem;
}

.md-typeset code {
  font-size: 0.8rem;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}

/* ── Tables — clean & compact ── */
.md-typeset table {
  display: table;
  width: 100%;
  font-size: 0.82rem;
  border-collapse: collapse;
  margin: 1rem 0;
}

.md-typeset table th {
  background-color: var(--md-primary-fg-color--lightest);
  color: var(--md-default-fg-color);
  font-weight: 600;
  white-space: nowrap;
  padding: 0.5rem 0.75rem;
  border-bottom: 2px solid var(--md-primary-fg-color);
  font-size: 0.8rem;
}

.md-typeset table td {
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
  vertical-align: top;
}

.md-typeset table tr:hover td {
  background-color: var(--md-default-fg-color--lightest);
}

/* ── Admonitions — refined ── */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 6px;
  font-size: 0.84rem;
  margin: 1rem 0;
}

.md-typeset .admonition-title {
  font-size: 0.84rem;
  font-weight: 600;
}

.md-typeset .admonition p {
  margin: 0.5rem 0;
}

/* ── Sidebar — compact ── */
.md-sidebar--primary {
  width: 160px;
}

.md-sidebar--secondary {
  width: 200px;
}

.md-sidebar .md-nav__link {
  font-size: 0.78rem;
  line-height: 1.4;
}

.md-sidebar .md-nav__title {
  font-size: 0.78rem;
}

/* ── Navigation tabs ── */
.md-tabs {
  background-color: var(--md-primary-fg-color);
  font-size: 0.82rem;
}

.md-tabs__link {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
}

/* ── Top bar ── */
.md-header__title {
  font-size: 0.95rem;
}

.md-search__input {
  font-size: 0.82rem;
  border-radius: 4px;
}

/* ── Cards grid (for feature showcase) ── */
.md-typeset .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.2rem 0;
}

.md-typeset .card {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  transition: all 0.15s ease;
}

.md-typeset .card:hover {
  border-color: var(--md-accent-fg-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.md-typeset .card h3 {
  font-size: 0.95rem;
  margin-top: 0;
  margin-bottom: 0.4rem;
  color: var(--md-primary-fg-color);
}

.md-typeset .card p {
  font-size: 0.82rem;
  margin: 0;
  opacity: 0.85;
}

/* ── Badges ── */
.md-typeset .badge {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1.4;
  vertical-align: middle;
}

.md-typeset .badge--new     { background: #4caf50; color: #fff; }
.md-typeset .badge--changed { background: #ff9800; color: #fff; }
.md-typeset .badge--dep     { background: #f44336; color: #fff; }

/* ── API reference: method signatures ── */
.md-typeset .doc-heading {
  border-bottom: 2px solid var(--md-accent-fg-color);
  padding-bottom: 0.4rem;
  margin-bottom: 1rem;
}

/* ── Smooth transitions ── */
.md-nav__link,
.md-tabs__link,
.md-footer__link {
  transition: color 0.15s ease, opacity 0.15s ease;
}

/* ── Footer ── */
.md-footer {
  margin-top: 2rem;
  font-size: 0.78rem;
}

/* ── Print ── */
@media print {
  .md-header, .md-tabs, .md-footer, .md-sidebar { display: none !important; }
  .md-content { margin: 0; padding: 1rem; }
}

/* ── Responsive — tablet ── */
@media screen and (max-width: 76.1875em) {
  :root {
    --fh-content-max: 100%;
  }

  .md-sidebar--primary  { width: 140px; }
  .md-sidebar--secondary { width: 180px; }
}

/* ── Responsive — mobile ── */
@media screen and (max-width: 61.5em) {
  .md-typeset {
    font-size: 0.9rem;
  }

  .md-typeset h1 { font-size: 1.5rem; }
  .md-typeset h2 { font-size: 1.2rem; }

  .md-content__inner {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

/* ════════════════════════════════════════════════════════════
   FaceHub — Tech hero & sci-fi styling
   ════════════════════════════════════════════════════════════ */

:root {
  --fh-cyan: #22d3ee;
  --fh-violet: #a78bfa;
  --fh-glow: 0 0 18px rgba(34, 211, 238, 0.45);
}

/* ── Hero container ── */
.md-typeset .fh-hero {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  margin: 0.4rem 0 1.6rem;
  padding: 3.2rem 2rem 2.6rem;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 55% at 50% -5%, rgba(34, 211, 238, 0.16), transparent 65%),
    radial-gradient(ellipse 45% 40% at 85% 105%, rgba(167, 139, 250, 0.14), transparent 60%),
    linear-gradient(160deg, #0b1220 0%, #0e1628 55%, #111a30 100%);
  border: 1px solid rgba(34, 211, 238, 0.22);
  box-shadow: 0 12px 40px rgba(2, 8, 23, 0.45), inset 0 0 60px rgba(34, 211, 238, 0.04);
}

/* grid overlay */
.md-typeset .fh-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.055) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse 75% 70% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 75% 70% at 50% 40%, #000 30%, transparent 75%);
  pointer-events: none;
}

/* scanline sweep */
.md-typeset .fh-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -30%;
  height: 30%;
  background: linear-gradient(180deg, transparent, rgba(34, 211, 238, 0.06), transparent);
  animation: fh-scan 7s linear infinite;
  pointer-events: none;
}

@keyframes fh-scan {
  0%   { top: -30%; }
  100% { top: 110%; }
}

.md-typeset .fh-hero canvas#fh-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.md-typeset .fh-hero-content {
  position: relative;
  z-index: 1;
}

/* ── Hero badge ── */
.md-typeset .fh-hero-badge {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--fh-cyan);
  border: 1px solid rgba(34, 211, 238, 0.45);
  border-radius: 999px;
  padding: 0.22rem 0.9rem;
  margin-bottom: 1.1rem;
  background: rgba(34, 211, 238, 0.07);
  text-shadow: 0 0 8px rgba(34, 211, 238, 0.6);
}

/* ── Hero title ── */
.md-typeset .fh-hero-title {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.7rem;
  color: #e6f1ff;
  border: none;
}

.md-typeset .fh-hero-title .fh-glow {
  background: linear-gradient(90deg, var(--fh-cyan), var(--fh-violet), var(--fh-cyan));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fh-gradient 4s linear infinite;
  filter: drop-shadow(0 0 14px rgba(34, 211, 238, 0.55));
}

@keyframes fh-gradient {
  to { background-position: 200% center; }
}

/* ── Typing tagline ── */
.md-typeset .fh-hero-typing {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  color: #9db4d0;
  min-height: 1.6em;
  margin: 0 0 1.5rem;
}

.md-typeset .fh-cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--fh-cyan);
  box-shadow: var(--fh-glow);
  animation: fh-blink 0.9s steps(2) infinite;
}

@keyframes fh-blink {
  50% { opacity: 0; }
}

/* ── Hero buttons ── */
.md-typeset .fh-hero-actions {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.md-typeset .fh-btn {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.55rem 1.5rem;
  border-radius: 8px;
  text-decoration: none !important;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.md-typeset .fh-btn--primary {
  color: #041018 !important;
  background: linear-gradient(90deg, var(--fh-cyan), #67e8f9);
  box-shadow: 0 0 22px rgba(34, 211, 238, 0.45);
}

.md-typeset .fh-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 32px rgba(34, 211, 238, 0.7);
}

.md-typeset .fh-btn--ghost {
  color: var(--fh-cyan) !important;
  border: 1px solid rgba(34, 211, 238, 0.5);
  background: rgba(34, 211, 238, 0.05);
}

.md-typeset .fh-btn--ghost:hover {
  transform: translateY(-2px);
  background: rgba(34, 211, 238, 0.14);
  box-shadow: var(--fh-glow);
}

/* ── Stats row ── */
.md-typeset .fh-stats {
  display: flex;
  justify-content: center;
  gap: 2.6rem;
  flex-wrap: wrap;
}

.md-typeset .fh-stat {
  text-align: center;
}

.md-typeset .fh-stat-num {
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fh-cyan);
  text-shadow: 0 0 14px rgba(34, 211, 238, 0.55);
}

.md-typeset .fh-stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #7e93b2;
}

/* ── Section title accent ── */
.md-typeset h2.fh-section {
  border: none;
  padding: 0;
  margin-top: 2.2rem;
  font-size: 1.3rem;
}

.md-typeset h2.fh-section::before {
  content: "// ";
  color: var(--fh-cyan);
  font-family: "JetBrains Mono", monospace;
}

/* ── Tech feature cards (upgrade of .card) ── */
.md-typeset .fh-card {
  position: relative;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  background: linear-gradient(160deg, rgba(34, 211, 238, 0.045), transparent 55%);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}

.md-typeset .fh-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--fh-cyan), transparent);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.md-typeset .fh-card:hover {
  transform: translateY(-3px);
  border-color: rgba(34, 211, 238, 0.55);
  box-shadow: 0 8px 26px rgba(34, 211, 238, 0.14);
}

.md-typeset .fh-card:hover::before {
  opacity: 1;
}

.md-typeset .fh-card h3 {
  margin-top: 0;
  font-size: 0.95rem;
  color: var(--md-accent-fg-color);
}

.md-typeset .fh-card .fh-card-icon {
  font-size: 1.3rem;
  display: block;
  margin-bottom: 0.45rem;
  filter: drop-shadow(0 0 8px rgba(34, 211, 238, 0.5));
}

.md-typeset .fh-card p {
  font-size: 0.82rem;
  margin: 0;
  opacity: 0.85;
}

/* ── Terminal-style code window ── */
.md-typeset .fh-terminal {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(34, 211, 238, 0.25);
  box-shadow: 0 10px 34px rgba(2, 8, 23, 0.4);
  margin: 1rem 0;
}

.md-typeset .fh-terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 0.9rem;
  background: #0d1526;
  border-bottom: 1px solid rgba(34, 211, 238, 0.18);
}

.md-typeset .fh-terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.md-typeset .fh-terminal-dot:nth-child(1) { background: #ff5f57; }
.md-typeset .fh-terminal-dot:nth-child(2) { background: #febc2e; }
.md-typeset .fh-terminal-dot:nth-child(3) { background: #28c840; }

.md-typeset .fh-terminal-title {
  margin-left: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: #7e93b2;
  letter-spacing: 0.08em;
}

.md-typeset .fh-terminal pre {
  margin: 0;
  border-radius: 0;
}

/* ── Glow links on homepage ── */
.md-typeset .fh-link-card {
  display: inline-block;
  margin: 0.2rem 0.4rem 0.2rem 0;
  padding: 0.45rem 1rem;
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 8px;
  font-size: 0.82rem;
  transition: all 0.18s ease;
}

.md-typeset .fh-link-card:hover {
  border-color: rgba(34, 211, 238, 0.6);
  box-shadow: var(--fh-glow);
  transform: translateY(-1px);
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .md-typeset .fh-hero::after,
  .md-typeset .fh-hero-title .fh-glow,
  .md-typeset .fh-cursor {
    animation: none;
  }
}

/* ── Mobile hero ── */
@media screen and (max-width: 44em) {
  .md-typeset .fh-hero {
    padding: 2.2rem 1.1rem 1.8rem;
  }
  .md-typeset .fh-hero-title {
    font-size: 2.1rem;
  }
  .md-typeset .fh-stats {
    gap: 1.4rem;
  }
}