:root {
  --bg: #0b0d10;
  --bg-elev: #14171c;
  --bg-elev-2: #1c2027;
  --bg-elev-3: #242931;
  --fg: #e6e8eb;
  --muted: #8a8a95;
  --muted-2: #5a5a65;
  --border: #262b33;
  --accent: #ff5b3a;
  --accent-dim: #d44a2f;
  --warn: #ffcc4d;
  --good: #22c55e;
  --good-dim: #16a34a;
  --grade-a: #22c55e;
  --grade-b: #84cc16;
  --grade-c: #eab308;
  --grade-d: #f97316;
  --grade-f: #ff5b3a;
  --code-font: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --ui-font: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--ui-font);
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--fg); text-decoration: none; }
a:hover { color: var(--accent); }
.muted { color: var(--muted); }
.danger { color: var(--accent); }
.good { color: var(--good); }

button {
  font-family: inherit;
  color: var(--fg);
}

/* Top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(11,13,16,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--fg);
}
.brand:hover { color: var(--fg); }
.brand-mark {
  display: inline-flex;
  width: 28px; height: 28px;
  border-radius: 6px;
  background: var(--accent);
  color: #0b0d10;
  font-family: var(--code-font);
  font-weight: 800;
  font-size: 18px;
  align-items: center;
  justify-content: center;
}
.brand-name {
  font-weight: 700;
  letter-spacing: 0.3px;
  font-family: var(--code-font);
}
.nav { display: flex; gap: 6px; align-items: center; }
.nav a {
  color: var(--fg);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
}
.nav a:hover { background: var(--bg-elev); color: var(--fg); }
.nav a.active { color: var(--accent); background: rgba(255,91,58,0.08); }
.nav a.ext { color: var(--muted); font-size: 13px; }

/* Main */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 64px;
  flex: 1;
}

.loading {
  padding: 60px 20px;
  text-align: center;
  color: var(--muted);
  font-family: var(--code-font);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 18px 24px;
  font-size: 13px;
  color: var(--muted);
}
.footer a { color: var(--muted); text-decoration: underline; text-decoration-color: var(--border); }
.footer a:hover { color: var(--accent); text-decoration-color: var(--accent); }
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero */
.hero {
  margin-bottom: 28px;
  padding: 24px 0 8px;
}
.hero-eyebrow {
  display: inline-block;
  background: rgba(255,91,58,0.1);
  color: var(--accent);
  border: 1px solid rgba(255,91,58,0.25);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero h1 {
  font-size: 38px;
  line-height: 1.1;
  margin: 0 0 12px;
  letter-spacing: -0.5px;
}
.hero h1 .accent { color: var(--accent); }
.hero .lede {
  color: var(--muted);
  font-size: 17px;
  max-width: 720px;
}

/* Lookup card */
.lookup {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 24px 0 36px;
}
@media (max-width: 880px) {
  .lookup { grid-template-columns: 1fr; }
}
.lookup-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.lookup-card h3 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
}
.lookup-card .help {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 14px;
}
.lookup-card input,
.lookup-card select {
  width: 100%;
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 15px;
  font-family: inherit;
  outline: none;
}
.lookup-card input:focus,
.lookup-card select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(255,91,58,0.18);
}
.lookup-card input.vin {
  font-family: var(--code-font);
  text-transform: uppercase;
  letter-spacing: 2px;
}
.lookup-row {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr 1.4fr;
  gap: 10px;
}
.lookup-row.vin-row {
  grid-template-columns: 1fr auto;
}
.btn {
  background: var(--accent);
  color: #0b0d10;
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.12s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--accent-dim); border-color: var(--accent-dim); }
.btn.ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.small { padding: 6px 12px; font-size: 13px; }

.lookup-msg {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
}
.lookup-msg.error { color: var(--accent); }
.lookup-msg.ok { color: var(--good); }

/* Worst-strip */
.worst-strip {
  margin-top: 8px;
}
.worst-strip h2 {
  margin: 36px 0 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
}
.worst-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.worst-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.12s ease;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.worst-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.worst-card .head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.worst-card .name {
  font-weight: 600;
  font-size: 16px;
}
.worst-card .warning {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Grade badge */
.grade-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 8px;
  font-family: var(--code-font);
  font-weight: 800;
  font-size: 18px;
  color: #0b0d10;
}
.grade-badge.lg {
  width: 110px; height: 110px;
  border-radius: 18px;
  font-size: 78px;
}
.grade-badge.md {
  width: 60px; height: 60px;
  font-size: 36px;
  border-radius: 12px;
}
.grade-A { background: var(--grade-a); }
.grade-B { background: var(--grade-b); }
.grade-C { background: var(--grade-c); }
.grade-D { background: var(--grade-d); }
.grade-F { background: var(--grade-f); }

/* Brand view */
.brand-header {
  display: flex;
  gap: 22px;
  align-items: center;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.brand-header .info { flex: 1; min-width: 220px; }
.brand-header h1 {
  font-size: 38px;
  margin: 0 0 4px;
  letter-spacing: -0.5px;
}
.brand-header .score-row {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  margin-top: 8px;
  flex-wrap: wrap;
}
.brand-header .score-row .pill {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-family: var(--code-font);
}
.brand-header .actions { display: flex; gap: 8px; flex-wrap: wrap; }

.brand-section {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 14px;
}
.brand-section h3 {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
}
.brand-section .h3-icon {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
}
.brand-section h3.is-good .h3-icon { background: var(--good); }

.chip-cloud {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.chip {
  display: inline-block;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--fg);
}
.chip.danger { border-color: rgba(255,91,58,0.4); background: rgba(255,91,58,0.08); color: #ffb09b; }
.chip.warn { border-color: rgba(255,204,77,0.4); background: rgba(255,204,77,0.08); color: #ffd76b; }
.chip.good { border-color: rgba(34,197,94,0.4); background: rgba(34,197,94,0.08); color: #a6e9b5; }

.callouts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.callout {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}
.callout .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.callout .value { margin-top: 6px; font-size: 17px; font-weight: 600; }
.callout.bad .value { color: var(--accent); }
.callout.ok .value { color: var(--good); }
.callout.warn .value { color: var(--warn); }

.link-list { list-style: none; padding: 0; margin: 0; }
.link-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.link-list li:last-child { border-bottom: none; }
.link-list a {
  color: var(--fg);
  display: inline-block;
}
.link-list a:hover { color: var(--accent); }
.link-list .src { color: var(--muted); font-size: 12px; margin-left: 8px; }
.link-list .dead { text-decoration: line-through; color: var(--muted); }
.link-list .badge {
  background: var(--bg-elev-3);
  color: var(--muted);
  font-size: 11px;
  font-family: var(--code-font);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
}
.link-list .badge.changed { background: rgba(255,204,77,0.15); color: var(--warn); }

.warning-list {
  list-style: none;
  padding: 0; margin: 0;
}
.warning-list li {
  padding: 8px 0;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.warning-list li::before {
  content: '!';
  flex-shrink: 0;
  display: inline-flex;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent);
  color: #0b0d10;
  font-family: var(--code-font);
  font-weight: 800;
  font-size: 13px;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.blurb {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}
.blurb p { margin: 0 0 8px; }
.blurb b { color: var(--fg); }

.empty-state {
  background: var(--bg-elev-2);
  border: 1px dashed var(--border);
  padding: 14px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
}

/* Leaderboard table */
.leaderboard-table {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  width: 100%;
  border-collapse: collapse;
}
.leaderboard-table th,
.leaderboard-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.leaderboard-table th {
  background: var(--bg-elev-2);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
}
.leaderboard-table tr:last-child td { border-bottom: none; }
.leaderboard-table tr.row-link { cursor: pointer; }
.leaderboard-table tr.row-link:hover td { background: var(--bg-elev-2); }
.leaderboard-table td.rank {
  font-family: var(--code-font);
  font-weight: 700;
  color: var(--muted);
}
.leaderboard-table td.brand-cell {
  font-weight: 600;
}
.leaderboard-table .score-bar {
  height: 6px;
  background: var(--bg-elev-3);
  border-radius: 3px;
  overflow: hidden;
  width: 90px;
}
.leaderboard-table .score-bar > span {
  display: block;
  height: 100%;
  background: var(--accent);
}

@media (max-width: 720px) {
  .leaderboard-table th.col-warning,
  .leaderboard-table td.warning-cell { display: none; }
  .hero h1 { font-size: 28px; }
  .topbar-inner { padding: 12px 16px; }
  .container { padding: 20px 16px 48px; }
  .nav a.ext { display: none; }
  .lookup-row { grid-template-columns: 1fr; }
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 100;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.toast.ok { border-color: var(--good); }
.toast.err { border-color: var(--accent); }