:root {
    --bg: #0a0a0a;
    --bg2: #111111;
    --bg3: #1a1a1a;
    --bg4: #222222;
    --card: #141414;
    --border: rgba(255,255,255,0.08);
    --border2: rgba(255,255,255,0.15);
    --text: #f0ede8;
    --text2: #999;
    --text3: #8a8a8a;
    --gold: #d4a017;
    --gold2: #f0c040;
    --red: #c0392b;
    --red2: #e74c3c;
    --blue: #1a5276;
    --blue2: #2980b9;
    --green: #1e8449;
    --green2: #27ae60;
    --accent-imsa: #e67e22;
    --accent-f1: #ff3b30;
    --accent-indy: #3b82f6;
    --accent-wec: #b06ad8;
    --accent-gt1: #a8b3c4;
    --accent-gt3: #16a34a;
    --accent-nascar: #fde047;
    --accent-supergt: #14b8a6;
    --accent-dtm: #f472b6;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  section[id] { scroll-margin-top: 64px; }

  body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.6;
  }

  /* HERO */
  .hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    overflow: hidden;
  }

  .hero-track {
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 120% 60% at 50% 80%, rgba(212,160,23,0.06) 0%, transparent 60%),
      radial-gradient(ellipse 80% 40% at 20% 50%, rgba(192,57,43,0.05) 0%, transparent 50%),
      radial-gradient(ellipse 80% 40% at 80% 50%, rgba(142,68,173,0.05) 0%, transparent 50%);
  }

  /* Animated speed lines */
  .speed-lines {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
  }
  .speed-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212,160,23,0.3), transparent);
    animation: streak var(--dur) linear infinite;
    animation-delay: var(--delay);
    top: var(--top);
    left: -100%;
    width: 60%;
  }
  @keyframes streak {
    0% { left: -60%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 110%; opacity: 0; }
  }



  .hero-eyebrow {
    font-size: 0.7rem;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.2s forwards;
  }

  .hero-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(3.5rem, 10vw, 9rem);
    line-height: 0.9;
    letter-spacing: 0.02em;
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.4s forwards;
  }

  .hero-title span.gold { color: var(--gold); }
  .hero-title span.f1 { color: var(--accent-f1); }
  .hero-title span.dim { color: var(--text3); font-size: 0.6em; }

  .hero-sub {
    font-size: 1.1rem;
    color: var(--text2);
    max-width: 560px;
    margin: 1.5rem auto 3rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.6s forwards;
    font-weight: 300;
  }

  .hero-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.8s 0.8s forwards;
  }

  .badge {
    padding: 0.45rem 1.2rem;
    border: 1px solid var(--border2);
    border-radius: 100px;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    cursor: pointer;
    display: inline-block;
  }
  .badge:hover { background: rgba(255,255,255,0.06); transform: translateY(-2px); }

  .back-to-top {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    padding: 0.7rem 1.6rem;
    border: 1px solid var(--border2);
    border-radius: 100px;
    color: var(--gold2);
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 600;
    transition: all 0.2s;
  }
  .back-to-top:hover { background: rgba(212,160,23,0.1); border-color: var(--gold); transform: translateY(-2px); }
  .back-to-top-wrap { text-align: center; }
  .badge-imsa { border-color: var(--accent-imsa); color: var(--accent-imsa); }
  .badge-f1 { border-color: var(--accent-f1); color: var(--accent-f1); }
  .badge-indy { border-color: var(--accent-indy); color: var(--accent-indy); }
  .badge-wec { border-color: var(--accent-wec); color: var(--accent-wec); }
  .badge-gt3 { border-color: var(--accent-gt3); color: var(--accent-gt3); }
  .badge-nascar { border-color: var(--accent-nascar); color: var(--accent-nascar); }
  .badge-supergt { border-color: var(--accent-supergt); color: var(--accent-supergt); }
  .badge-dtm { border-color: var(--accent-dtm); color: var(--accent-dtm); }
  .badge-gt1 { border-color: var(--accent-gt1); color: var(--accent-gt1); }
  .badge:hover { transform: translateY(-2px); }

  .scroll-hint {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeUp 1s 1.2s forwards;
  }
  @media (min-width: 641px) {
    .scroll-hint {
      left: 0;
      right: 0;
      width: 100%;
      text-align: center;
      transform: none;
    }
  }
  .scroll-dot {
    width: 6px; height: 6px;
    background: var(--gold);
    border-radius: 50%;
    margin: 0 auto 0.5rem;
    animation: bounce 1.5s ease-in-out infinite;
  }
  @keyframes bounce {
    0%,100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
  }
  .scroll-hint span { font-size: 0.65rem; letter-spacing: 0.25em; color: var(--text3); text-transform: uppercase; }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* NAV */
  nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10,10,10,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    display: flex;
    gap: 0;
    align-items: center;
    overflow-x: auto;
  }
  .nav-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.2rem;
    color: var(--gold);
    letter-spacing: 0.05em;
    margin-right: 2rem;
    white-space: nowrap;
    flex-shrink: 0;
  }
  nav a {
    display: block;
    padding: 1rem 1.25rem;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text3);
    text-decoration: none;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    font-weight: 500;
  }
  nav a:hover { color: var(--text); border-bottom-color: var(--gold); }
  nav a.active { color: var(--gold2); border-bottom-color: var(--gold); }

  /* SECTIONS */
  section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
  }

  .section-header {
    margin-bottom: 3rem;
  }

  .section-eyebrow {
    font-size: 0.65rem;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    font-weight: 600;
  }
  .eyebrow-imsa { color: var(--accent-imsa); }
  .eyebrow-f1 { color: var(--accent-f1); }
  .eyebrow-indy { color: var(--accent-indy); }
  .eyebrow-wec { color: var(--accent-wec); }
  .eyebrow-gt1 { color: var(--accent-gt1); }
  .eyebrow-gold { color: var(--gold); }

  .section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1;
    letter-spacing: 0.02em;
    margin-bottom: 1rem;
  }

  .section-desc {
    color: var(--text2);
    max-width: 640px;
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.75;
  }

  /* TIMELINE */
  .timeline {
    position: relative;
    padding-left: 2rem;
  }
  .timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--gold), transparent);
  }
  .timeline-item {
    position: relative;
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.5s;
  }
  .timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
  }
  .timeline-item::before {
    content: '';
    position: absolute;
    left: -2.38rem;
    top: 0.4rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 12px var(--gold);
  }
  .timeline-year {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1rem;
    color: var(--gold);
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
  }
  .timeline-event {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.35rem;
  }
  .timeline-indy::before { background: linear-gradient(to bottom, var(--accent-indy), transparent); }
  .timeline-indy .timeline-item::before { background: var(--accent-indy); box-shadow: 0 0 12px var(--accent-indy); }
  .timeline-indy .timeline-year { color: var(--accent-indy); }
  .timeline-nascar::before { background: linear-gradient(to bottom, var(--accent-nascar), transparent); }
  .timeline-nascar .timeline-item::before { background: var(--accent-nascar); box-shadow: 0 0 12px var(--accent-nascar); }
  .timeline-nascar .timeline-year { color: var(--accent-nascar); }
  .timeline-supergt::before { background: linear-gradient(to bottom, var(--accent-supergt), transparent); }
  .timeline-supergt .timeline-item::before { background: var(--accent-supergt); box-shadow: 0 0 12px var(--accent-supergt); }
  .timeline-supergt .timeline-year { color: var(--accent-supergt); }
  .timeline-dtm::before { background: linear-gradient(to bottom, var(--accent-dtm), transparent); }
  .timeline-dtm .timeline-item::before { background: var(--accent-dtm); box-shadow: 0 0 12px var(--accent-dtm); }
  .timeline-dtm .timeline-year { color: var(--accent-dtm); }

  .timeline-detail {
    font-size: 0.875rem;
    color: var(--text2);
    line-height: 1.65;
  }

  /* STAT CARDS */
  .stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin: 3rem 0;
  }
  .stat-card {
    background: var(--card);
    padding: 1.75rem 1.5rem;
    transition: background 0.2s;
  }
  .stat-card:hover { background: var(--bg3); }
  .stat-num {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3rem;
    line-height: 1;
    margin-bottom: 0.4rem;
  }
  .stat-label {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text3);
    font-weight: 500;
  }

  /* DRIVER CARDS */
  .driver-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .driver-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
    cursor: pointer;
  }
  .driver-card:hover {
    border-color: var(--border2);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  }

  .driver-header {
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    border-bottom: 1px solid var(--border);
  }

  .driver-photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border2);
    flex-shrink: 0;
  }

  .driver-photo-initials {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg3);
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.9rem;
    letter-spacing: 0.04em;
  }

  .driver-number {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3rem;
    line-height: 1;
    flex-shrink: 0;
    width: 3rem;
    text-align: right;
  }

  .driver-info { flex: 1; }
  .driver-name {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
    letter-spacing: 0.02em;
  }
  .driver-nat {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text3);
    margin-bottom: 0.5rem;
    font-weight: 500;
  }
  .flag {
    width: 18px;
    height: 12px;
    object-fit: cover;
    border-radius: 2px;
    vertical-align: -1px;
    margin-right: 0.35rem;
  }
  .driver-tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
  }

  .driver-body {
    padding: 1.25rem 1.5rem;
  }
  .driver-bio {
    font-size: 0.875rem;
    color: var(--text2);
    line-height: 1.7;
    margin-bottom: 1rem;
  }
  .driver-achievements {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
  }
  .achievement {
    font-size: 0.75rem;
    color: var(--text3);
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  .achievement::before {
    content: '-';
    color: var(--gold);
    font-size: 0.6rem;
    flex-shrink: 0;
  }

  /* CAR CARDS */
  .car-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
  }

  .car-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
  }
  .car-card:hover {
    transform: translateY(-3px);
    border-color: var(--border2);
    box-shadow: 0 16px 32px rgba(0,0,0,0.3);
  }

  .car-visual {
    height: 200px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
  }

  .car-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .car-body {
    padding: 1.5rem;
  }

  .car-make {
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text3);
    margin-bottom: 0.25rem;
    font-weight: 600;
  }
  .car-name {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.6rem;
    margin-bottom: 0.75rem;
    letter-spacing: 0.03em;
  }
  .car-desc {
    font-size: 0.85rem;
    color: var(--text2);
    line-height: 1.65;
    margin-bottom: 1rem;
  }

  .car-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }
  .spec {
    padding: 0.6rem 0.75rem;
    background: var(--bg3);
    border-radius: 6px;
  }
  .spec-val {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.1rem;
  }
  .spec-key {
    font-size: 0.65rem;
    color: var(--text3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }

  /* ERA SECTION */
  .era-block {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s;
  }
  .era-block:hover { border-color: var(--border2); }
  .era-accent {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    border-radius: 4px 0 0 4px;
  }
  .era-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .era-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2rem;
    letter-spacing: 0.03em;
  }
  .era-years {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text3);
    padding: 0.35rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-weight: 500;
    align-self: flex-start;
  }
  .era-desc {
    font-size: 0.9rem;
    color: var(--text2);
    line-height: 1.75;
  }

  /* DIVIDER */
  .divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border2), transparent);
    margin: 0;
  }

  /* FOOTER */
  footer {
    background: var(--bg2);
    border-top: 1px solid var(--border);
    padding: 3rem 2rem;
    text-align: center;
  }
  .footer-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2rem;
    color: var(--gold);
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
  }
  .footer-text {
    font-size: 0.8rem;
    color: var(--text3);
    line-height: 1.6;
  }

  /* QUOTE */
  .quote-block {
    border-left: 3px solid var(--gold);
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    background: rgba(212,160,23,0.04);
    border-radius: 0 8px 8px 0;
  }
  .quote-text {
    font-size: 1.05rem;
    color: var(--text);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 0.5rem;
  }
  .quote-attr {
    font-size: 0.75rem;
    color: var(--text3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 500;
  }

  /* CIRCUITS */
  .circuit-label {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.6rem;
    letter-spacing: 0.03em;
    margin-bottom: 0.75rem;
  }
  .circuit-wrapper > div:not(.circuit-label) {
    border: 1px solid var(--border);
  }
  .circuit-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
  }

  /* TERMS */
  .terms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .term-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--term-color, var(--gold));
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.3s;
  }
  .term-card:hover {
    transform: translateY(-2px);
    border-color: var(--border2);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
  }

  .term-category {
    font-size: 0.6rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text3);
    margin-bottom: 0.5rem;
    font-weight: 600;
  }

  .term-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text);
  }

  .term-def {
    font-size: 0.875rem;
    color: var(--text2);
    line-height: 1.7;
  }

  .term-def strong {
    color: var(--text);
    font-weight: 600;
  }

  .terms-intro {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
  }
  .terms-intro-icon {
    font-size: 2rem;
    flex-shrink: 0;
    line-height: 1;
  }
  .terms-intro p {
    font-size: 0.9rem;
    color: var(--text2);
    line-height: 1.7;
  }

  /* TERM FILTERS */
  .term-tools {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
  }
  .term-search {
    width: 100%;
    max-width: 420px;
    padding: 0.75rem 1rem;
    background: var(--card);
    border: 1px solid var(--border2);
    border-radius: 8px;
    color: var(--text);
    font: inherit;
    font-size: 0.9rem;
  }
  .term-search:focus { outline: 2px solid var(--gold); outline-offset: 1px; }
  .chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
  .chip {
    padding: 0.4rem 0.9rem;
    border: 1px solid var(--border2);
    border-radius: 100px;
    background: transparent;
    color: var(--text2);
    font: inherit;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
  }
  .chip:hover { color: var(--text); border-color: var(--gold); }
  .chip[aria-pressed="true"] { background: var(--gold); border-color: var(--gold); color: #111; }
  .term-count { font-size: 0.75rem; color: var(--text3); letter-spacing: 0.1em; text-transform: uppercase; }
  .term-card[hidden] { display: none; }

  /* COMPARE TABLE */
  .compare-tools { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; margin-bottom: 1.25rem; }
  .compare-tools label { font-size: 0.75rem; color: var(--text3); letter-spacing: 0.1em; text-transform: uppercase; }
  .compare-select {
    padding: 0.55rem 0.9rem;
    background: var(--card);
    border: 1px solid var(--border2);
    border-radius: 8px;
    color: var(--text);
    font: inherit;
    font-size: 0.85rem;
  }
  .table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
  .compare-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; min-width: 640px; }
  .compare-table th, .compare-table td { padding: 0.8rem 1rem; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
  .compare-table td.num, .compare-table th.num { text-align: right; font-variant-numeric: tabular-nums; }
  .compare-table thead th { background: var(--bg3); position: sticky; top: 0; }
  .compare-table th button {
    background: none; border: 0; color: var(--text3); font: inherit; font-size: 0.68rem;
    letter-spacing: 0.15em; text-transform: uppercase; font-weight: 600; cursor: pointer; padding: 0;
  }
  .compare-table th button:hover, .compare-table th button.sorted { color: var(--gold2); }
  .compare-table tbody tr { background: var(--card); transition: background 0.15s; }
  .compare-table tbody tr:hover { background: var(--bg3); }
  .compare-table td:first-child { font-weight: 600; }
  .series-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 0.5rem; vertical-align: 1px; }
  .compare-note { font-size: 0.75rem; color: var(--text3); margin-top: 0.75rem; }

  /* QUIZ */
  .quiz-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    max-width: 720px;
  }
  .quiz-progress { font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); font-weight: 600; margin-bottom: 0.75rem; }
  .quiz-bar { height: 3px; background: var(--bg4); border-radius: 3px; margin-bottom: 1.5rem; overflow: hidden; }
  .quiz-bar span { display: block; height: 100%; background: var(--gold); transition: width 0.3s; }
  .quiz-question { font-size: 1.2rem; font-weight: 600; margin-bottom: 1.25rem; line-height: 1.45; }
  .quiz-options { display: grid; gap: 0.6rem; }
  .quiz-option {
    text-align: left; padding: 0.9rem 1.1rem; background: var(--bg3); border: 1px solid var(--border2);
    border-radius: 10px; color: var(--text); font: inherit; font-size: 0.95rem; cursor: pointer; transition: all 0.15s;
  }
  .quiz-option:hover:not(:disabled) { border-color: var(--gold); }
  .quiz-option:disabled { cursor: default; }
  .quiz-option.correct { border-color: var(--green2); background: rgba(39,174,96,0.15); }
  .quiz-option.wrong { border-color: var(--red2); background: rgba(231,76,60,0.15); }
  .quiz-feedback { margin-top: 1.1rem; font-size: 0.9rem; color: var(--text2); line-height: 1.6; min-height: 1.5em; }
  .quiz-next {
    margin-top: 1.25rem; padding: 0.7rem 1.6rem; border-radius: 100px; border: 1px solid var(--gold);
    background: var(--gold); color: #111; font: inherit; font-weight: 700; font-size: 0.8rem;
    letter-spacing: 0.12em; text-transform: uppercase; cursor: pointer;
  }
  .quiz-next[hidden] { display: none; }
  .quiz-score { font-family: 'Bebas Neue', sans-serif; font-size: 4rem; color: var(--gold); line-height: 1; margin-bottom: 0.5rem; }


  /* ══ NEW LOOKS ══ */

  /* Light theme */
  :root[data-theme="light"] {
    --bg: #f5f3ee;
    --bg2: #ebe8e1;
    --bg3: #e2ded5;
    --bg4: #d6d2c8;
    --card: #ffffff;
    --border: rgba(0,0,0,0.09);
    --border2: rgba(0,0,0,0.18);
    --text: #16140f;
    --text2: #4a4740;
    --text3: #6e6a61;
    --gold: #8b5e00;
    --gold2: #7a5200;
    --accent-imsa: #a8520a;
    --accent-indy: #2563eb;
    --accent-wec: #7e3aa0;
    --accent-nascar: #7c6800;
    --accent-supergt: #0d7a6e;
    --accent-dtm: #c21d68;
    --accent-f1: #c80500;
    --accent-gt1: #5b6b82;
    --accent-gt3: #15803d;
  }
  :root[data-theme="light"] nav { background: rgba(245,243,238,0.92); }
  :root[data-theme="light"] .bg-number { color: rgba(0,0,0,0.04); }
  :root[data-theme="light"] .driver-number,
  :root[data-theme="light"] .driver-tag { filter: brightness(0.78) saturate(1.2); }
  :root[data-theme="light"] .speed-line { opacity: 0.5; }

  .theme-toggle {
    margin-left: auto;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.8rem;
    border: 1px solid var(--border2);
    border-radius: 100px;
    background: transparent;
    color: var(--text2);
    font: inherit;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
  }
  .theme-toggle:hover { color: var(--text); border-color: var(--gold); }
  /* keep the toggle pinned to the right edge while the link list scrolls */
  .theme-toggle {
    position: sticky;
    right: 0;
    margin-right: -0.5rem;
    background: var(--bg);
    box-shadow: -18px 0 14px -4px var(--bg);
  }
  .theme-toggle svg { width: 14px; height: 14px; }

  /* Championship banners */
  .series-banner {
    position: relative;
    height: 300px;
    border-radius: 16px;
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--border);
    border-bottom: 3px solid var(--series);
    margin-bottom: 3rem;
  }
  .series-banner img {
    position: absolute;
    top: 0; right: 0;
    width: 70%;
    height: 100%;
    object-fit: cover;
  }
  .series-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
      radial-gradient(ellipse 60% 90% at 0% 100%, color-mix(in srgb, var(--series) 22%, transparent), transparent 70%),
      linear-gradient(90deg, var(--card) 30%, color-mix(in srgb, var(--card) 55%, transparent) 50%, transparent 78%);
  }
  .series-banner-text {
    position: absolute;
    left: 2.5rem;
    bottom: 2rem;
    z-index: 2;
  }
  .series-banner-name {
    display: block;
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(3.2rem, 8vw, 6rem);
    line-height: 0.9;
    letter-spacing: 0.02em;
    color: var(--series);
  }
  .series-banner-meta {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text2);
    font-weight: 600;
  }

  /* Glowing track maps */
  .track-panel {
    background-color: #0a0a0a !important;
    background-image: radial-gradient(rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 22px 22px;
  }
  .track-glow { max-height: 380px !important; }
  .js .track-glow {
    clip-path: inset(0 100% 0 0);
    transition: clip-path 1.8s cubic-bezier(0.65, 0, 0.35, 1) 0.2s;
  }
  .js .circuit-wrapper.visible .track-glow { clip-path: inset(0 0 0 0); }

  /* Power bars */
  .power-bar {
    height: 4px;
    margin-top: 0.45rem;
    background: var(--bg4);
    border-radius: 4px;
    overflow: hidden;
  }
  .power-bar span {
    display: block;
    height: 100%;
    width: 0;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--gold), var(--gold2));
    transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
  }
  .car-card.visible .power-bar span { width: var(--w); }

  /* Checkered dividers */
  .divider {
    height: 10px !important;
    background: repeating-conic-gradient(var(--text) 0 25%, transparent 0 50%) 0 0 / 10px 10px !important;
    opacity: 0.1;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
            mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
  }


  @media (max-width: 640px) {
    .series-banner { height: 230px; }
    .series-banner img { width: 100%; }
    .series-banner::before {
      background:
        radial-gradient(ellipse 80% 70% at 0% 100%, color-mix(in srgb, var(--series) 25%, transparent), transparent 70%),
        linear-gradient(0deg, var(--card) 18%, color-mix(in srgb, var(--card) 50%, transparent) 50%, transparent 85%);
    }
    .series-banner-text { left: 1.25rem; bottom: 1.25rem; }
    .theme-toggle span { display: none; }
  }


  /* ══ REFINEMENTS ══ */

  /* 4-driver / 4-car grids: tidy 2 × 2 instead of 3 + 1 */
  @media (min-width: 900px) {
    .grid-2x2 { grid-template-columns: repeat(2, 1fr) !important; }
  }

  /* Hero collage */
  .hero-collage {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    opacity: 0.2;
    filter: saturate(0.75);
    z-index: 0;
  }
  .hero-collage img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .hero-veil {
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
      radial-gradient(ellipse 55% 50% at 50% 50%, var(--bg) 0%, color-mix(in srgb, var(--bg) 75%, transparent) 55%, color-mix(in srgb, var(--bg) 35%, transparent) 100%),
      linear-gradient(to bottom, transparent 65%, var(--bg));
  }
  .hero-eyebrow, .hero-title, .hero-sub, .hero-badges { position: relative; z-index: 2; }
  .scroll-hint, .speed-lines { z-index: 1; }
  :root[data-theme="light"] .hero-collage { opacity: 0.16; }

  /* Contents panel */
  .contents-btn {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-right: 1rem;
    padding: 0.45rem 0.85rem;
    border: 1px solid var(--border2);
    border-radius: 100px;
    background: transparent;
    color: var(--text);
    font: inherit;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
  }
  .contents-btn:hover, .contents-btn[aria-expanded="true"] { border-color: var(--gold); color: var(--gold2); }
  .contents-btn svg { width: 14px; height: 14px; }
  .contents-panel {
    position: fixed;
    top: 62px;
    left: 50%;
    transform: translateX(-50%);
    width: min(780px, calc(100vw - 2rem));
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    z-index: 160;
    background: var(--bg2);
    border: 1px solid var(--border2);
    border-radius: 14px;
    padding: 1.5rem;
    box-shadow: 0 24px 60px rgba(0,0,0,0.45);
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
  }
  .contents-panel[hidden] { display: none; }
  .contents-group h3 {
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 0.75rem;
  }
  .contents-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.25rem 1rem; list-style: none; }
  .contents-group:last-child .contents-list { grid-template-columns: 1fr; }
  .contents-list a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.6rem;
    border-radius: 8px;
    color: var(--text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.15s;
  }
  .contents-list a:hover, .contents-list a:focus-visible { background: var(--bg3); }
  .contents-list .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

  /* Floating back-to-top */
  .fab-top {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 150;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 0;
    background: var(--gold);
    color: #111;
    display: grid;
    place-items: center;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0,0,0,0.35);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.25s, transform 0.25s;
  }
  .fab-top.show { opacity: 1; pointer-events: auto; transform: none; }
  .fab-top svg { width: 20px; height: 20px; }

  /* Term tooltips */
  .term-tip {
    background: none;
    border: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    border-bottom: 1px dotted var(--gold);
    cursor: help;
  }
  .term-tip:hover, .term-tip:focus-visible { color: var(--text); border-bottom-style: solid; outline: none; }
  .tip-pop {
    position: absolute;
    z-index: 300;
    max-width: 320px;
    background: var(--bg3);
    border: 1px solid var(--border2);
    border-left: 3px solid var(--gold);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    font-size: 0.82rem;
    line-height: 1.55;
    color: var(--text2);
    box-shadow: 0 14px 34px rgba(0,0,0,0.4);
    pointer-events: none;
  }
  .tip-pop[hidden] { display: none; }
  .tip-pop strong { display: block; color: var(--text); font-size: 0.9rem; margin-bottom: 0.3rem; }
  .tip-pop span { display: block; margin-top: 0.45rem; font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text3); }

  /* Sources & credits */
  .sources-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem 2rem; }
  .sources-block h3 {
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 0.6rem;
  }
  .sources-block ul { list-style: none; display: grid; gap: 0.3rem; }
  .sources-block a, .credits-list a { color: var(--text2); text-decoration: none; font-size: 0.85rem; border-bottom: 1px solid var(--border2); }
  .sources-block a:hover, .credits-list a:hover { color: var(--text); border-color: var(--gold); }
  .credits {
    margin-top: 2.5rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
  }
  .credits summary { cursor: pointer; font-weight: 600; font-size: 0.95rem; }
  .credits p { font-size: 0.85rem; color: var(--text2); margin: 0.75rem 0; line-height: 1.6; }
  .credits-list { list-style: none; columns: 2 300px; column-gap: 2rem; font-size: 0.8rem; color: var(--text3); }
  .credits-list li { break-inside: avoid; margin-bottom: 0.45rem; line-height: 1.45; }
  .credits-list b { color: var(--text2); font-weight: 600; }
  .last-updated { display: inline-block; margin-top: 0.75rem; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text3); }
  .footer-text a { color: var(--gold2); text-decoration: none; }

  @media (max-width: 900px) {
    nav > a:not(.nav-logo) { display: none; }
    .contents-panel { grid-template-columns: 1fr; top: 56px; }
  }
  @media (max-width: 480px) {
    .contents-list { grid-template-columns: 1fr; }
    .hero-collage { grid-template-columns: repeat(2, 1fr); }
    .hero-collage img:nth-child(n+7) { display: none; }
  }


  /* Track map labels: larger, brighter, readable on the dark panel */
  .circuit-pills > div {
    background: rgba(255,255,255,0.07) !important;
    border-color: rgba(255,255,255,0.2) !important;
    padding: 0.55rem 1.1rem !important;
  }
  .circuit-pills span {
    font-size: 0.82rem !important;
    color: #f0ede8 !important;
  }

  /* Circuit facts under the new tracks */
  .circuit-fact {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text2);
    line-height: 1.7;
    max-width: 820px;
  }

  /* Race weekend guide */
  .weekend-flow {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin: 2rem 0 3rem;
    counter-reset: step;
  }
  .weekend-step {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-top: 3px solid var(--gold);
    border-radius: 12px;
    padding: 1.4rem 1.3rem 1.3rem;
  }
  .weekend-step::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    top: 0.9rem;
    right: 1.1rem;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.2rem;
    line-height: 1;
    color: var(--border2);
  }
  .weekend-step h3 { font-family: 'Bebas Neue', sans-serif; font-size: 1.5rem; letter-spacing: 0.03em; margin-bottom: 0.5rem; }
  .weekend-step p { font-size: 0.88rem; color: var(--text2); line-height: 1.65; }
  .weekend-table { min-width: 860px; }
  .weekend-table th, .weekend-table td { white-space: normal; vertical-align: top; line-height: 1.55; }
  .weekend-table tbody th { text-align: left; font-size: 0.68rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text3); font-weight: 600; width: 130px; background: var(--card); }
  .weekend-table thead th { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; }
  .weekend-table td { color: var(--text2); }
  .penalty-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; margin-top: 1.5rem; }

  /* ── RESPONSIVE ── */
  @media (max-width: 640px) {
    .driver-grid { grid-template-columns: 1fr; }
    .car-grid { grid-template-columns: 1fr; }
    section { padding: 3rem 1.25rem; }

    /* Portrait phone tuning */
    body { -webkit-text-size-adjust: 100%; }
    .hero { padding: 1.5rem 1.25rem; min-height: 100svh; }
    .hero-title { letter-spacing: 0; }
    .hero-sub { font-size: 1rem; margin: 1.25rem auto 2rem; }
    .hero-badges { gap: 0.6rem; }
    .badge { padding: 0.4rem 0.9rem; font-size: 0.68rem; }

    nav { padding: 0 1rem; }
    .nav-logo { font-size: 1.05rem; margin-right: 1.25rem; }
    nav a { padding: 0.85rem 0.9rem; font-size: 0.68rem; }

    .section-title { font-size: clamp(2.1rem, 9vw, 3rem); }
    .section-desc { font-size: 0.92rem; }

    .timeline { padding-left: 1.5rem; }
    .timeline-item::before { left: -1.88rem; }

    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-num { font-size: 2.1rem; }
    .stat-card { padding: 1.25rem 1rem; }

    .term-grid, .stat-grid, .car-grid, .driver-grid { gap: 1px; }
    .car-specs { grid-template-columns: 1fr 1fr; gap: 0.4rem; }

    .quiz-card { padding: 1.4rem; }
    .quiz-question { font-size: 1.05rem; }
    .footer-logo { font-size: 1.4rem; }
    .footer-text { font-size: 0.85rem; padding: 0 1rem; }
  }

  @media (max-width: 400px) {
    .stat-grid { grid-template-columns: 1fr 1fr; }
    .hero-title { font-size: clamp(2.8rem, 13vw, 5rem); }
  }

  /* ── REVEAL ANIMATION ── */
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }

  /* Content stays visible if JavaScript is off or fails */
  html:not(.js) .reveal,
  html:not(.js) .timeline-item { opacity: 1; transform: none; }

  /* Respect the "reduce motion" accessibility setting */
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal, .timeline-item { opacity: 1 !important; transform: none !important; }
    .hero-eyebrow, .hero-title, .hero-sub, .hero-badges, .scroll-hint { opacity: 1 !important; }
    .speed-lines { display: none; }
  }

  /* ── RACE NUMBER DECORATION ── */
  .bg-number {
    position: absolute;
    right: -1rem;
    top: 50%;
    transform: translateY(-50%);
    font-family: 'Bebas Neue', sans-serif;
    font-size: 10rem;
    color: rgba(255,255,255,0.02);
    line-height: 1;
    pointer-events: none;
    user-select: none;
  }

  /* Grid section background strip */
  .section-strip {
    background: var(--bg2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  /* ══ MULTI-PAGE LAYOUT ══ */
  nav a.nav-logo {
    padding: 0;
    margin-right: 1.25rem;
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: none;
    color: var(--gold);
    border-bottom: 0;
  }
  nav a.nav-logo:hover { color: var(--gold2); border-bottom: 0; }
  nav a[aria-current="page"] { color: var(--gold2); border-bottom-color: var(--gold); }

  .crumbs {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 2rem 0;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text3);
  }
  .crumbs a { color: var(--text2); text-decoration: none; }
  .crumbs a:hover { color: var(--gold2); }
  .crumbs span[aria-current] { color: var(--text); }
  .page-main > section:first-child,
  .page-main > .section-strip:first-child > section { padding-top: 2rem; }
  .page-main > .section-strip:first-child { border-top: 0; background: transparent; }

  .page-nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem 4rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .page-nav a {
    display: block;
    padding: 1.1rem 1.3rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text);
    transition: all 0.2s;
  }
  .page-nav a:hover { border-color: var(--gold); transform: translateY(-2px); }
  .page-nav .next { text-align: right; grid-column: 2; }
  .page-nav small {
    display: block;
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text3);
    margin-bottom: 0.3rem;
  }
  .page-nav strong { font-family: 'Bebas Neue', sans-serif; font-size: 1.6rem; font-weight: 400; letter-spacing: 0.03em; }

  /* Home page cards */
  .home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 1.25rem;
  }
  .home-card {
    display: flex;
    flex-direction: column;
    background: var(--card);
    border: 1px solid var(--border);
    border-bottom: 3px solid var(--series);
    border-radius: 14px;
    overflow: hidden;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  }
  .home-card:hover { transform: translateY(-4px); border-color: var(--border2); box-shadow: 0 18px 36px rgba(0,0,0,0.35); }
  .home-card img { width: 100%; height: 150px; object-fit: cover; display: block; }
  .home-card-body { padding: 1.1rem 1.25rem 1.3rem; }
  .home-card-meta { font-size: 0.65rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--text3); font-weight: 600; }
  .home-card-name { display: block; font-family: 'Bebas Neue', sans-serif; font-size: 2rem; line-height: 1.1; color: var(--series); margin: 0.2rem 0 0.4rem; }
  .home-card-desc { font-size: 0.88rem; color: var(--text2); line-height: 1.6; }
  .home-card.guide { border-top: 3px solid var(--gold); border-bottom-color: var(--border); }
  .home-card.guide .home-card-name { color: var(--text); }

  @media (max-width: 640px) {
    .crumbs { padding: 1rem 1.25rem 0; }
    .page-nav { grid-template-columns: 1fr; padding: 1rem 1.25rem 3rem; }
    .page-nav .next { grid-column: 1; }
  }

  /* Slim top bar: logo, Contents and theme switch only */
  nav { min-height: 58px; }

  /* ══ SITE SEARCH ══ */
  [id] { scroll-margin-top: 84px; }
  .search-btn {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.45rem 0.6rem 0.45rem 0.85rem;
    border: 1px solid var(--border2);
    border-radius: 100px;
    background: transparent;
    color: var(--text2);
    font: inherit;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
  }
  .search-btn:hover { color: var(--text); border-color: var(--gold); }
  .search-btn svg { width: 14px; height: 14px; }
  .search-btn kbd {
    font: inherit;
    font-size: 0.65rem;
    padding: 0.05rem 0.4rem;
    border: 1px solid var(--border2);
    border-radius: 4px;
    color: var(--text3);
  }
  .search-overlay {
    position: fixed;
    inset: 0;
    z-index: 400;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 10vh 1rem 1rem;
  }
  .search-overlay[hidden] { display: none; }
  .search-box {
    width: min(680px, 100%);
    max-height: 78vh;
    display: flex;
    flex-direction: column;
    background: var(--bg2);
    border: 1px solid var(--border2);
    border-radius: 14px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.5);
    overflow: hidden;
  }
  .search-field {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.1rem;
    border-bottom: 1px solid var(--border);
  }
  .search-field svg { width: 18px; height: 18px; color: var(--gold); flex-shrink: 0; }
  .search-field input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: 0;
    outline: none;
    color: var(--text);
    font: inherit;
    font-size: 1.05rem;
  }
  .search-close {
    background: var(--bg3);
    border: 1px solid var(--border2);
    border-radius: 6px;
    color: var(--text3);
    font: inherit;
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    cursor: pointer;
  }
  .search-results { list-style: none; overflow-y: auto; padding: 0.4rem; }
  .search-results:empty { display: none; }
  .search-results a {
    display: block;
    padding: 0.7rem 0.85rem;
    border-radius: 9px;
    text-decoration: none;
    color: var(--text);
  }
  .search-results a:hover, .search-results a.active { background: var(--bg3); }
  .sr-top { display: flex; align-items: center; gap: 0.55rem; }
  .sr-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
  .sr-title { font-weight: 600; font-size: 0.95rem; }
  .sr-meta { margin-left: auto; font-size: 0.62rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text3); white-space: nowrap; }
  .sr-snip { display: block; margin-top: 0.2rem; font-size: 0.8rem; color: var(--text2); line-height: 1.5; padding-left: 1.1rem; }
  .search-results mark { background: color-mix(in srgb, var(--gold) 30%, transparent); color: inherit; border-radius: 2px; }
  .search-hint { padding: 0.8rem 1.1rem; font-size: 0.78rem; color: var(--text3); border-top: 1px solid var(--border); }
  .search-hit { animation: searchHit 2.2s ease-out; }
  @keyframes searchHit {
    0%, 30% { box-shadow: 0 0 0 3px var(--gold); }
    100% { box-shadow: 0 0 0 3px transparent; }
  }
  @media (max-width: 640px) {
    .search-btn span, .search-btn kbd { display: none; }
    .search-btn { padding: 0.45rem 0.6rem; }
  }