:root {
  color-scheme: dark;
  --carbon: #0A0A0F;
  --graphite: #13131A;
  --slate: #1C1C28;
  --border: #2A2A3A;
  --text: #F0F0F5;
  --silver: #8A8A9A;
  --accent: #00C8FF;
  --danger: #FF4444;
  --gain: #00E676;
  --neutral: #FFC400;
  --tyre-soft: #FF3333;
  --tyre-medium: #FFD700;
  --tyre-hard: #E0E0E0;
  --tyre-inter: #00CC44;
  --tyre-wet: #0088FF;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--carbon);
  color: var(--text);
}

.mono {
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
}

a { color: var(--accent); text-decoration: none; }

/* Nav */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  border-bottom: 1px solid var(--border);
}
nav .brand {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
nav .brand span { color: var(--accent); }
nav .links a {
  color: var(--silver);
  font-size: 13px;
  margin-left: 24px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
nav .links a.active, nav .links a:hover { color: var(--text); }
nav .search-form input {
  background: var(--graphite);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 13px;
  margin-left: 24px;
  width: 180px;
}

/* Hero */
.hero {
  padding: 90px 32px 70px;
  max-width: 880px;
}
.hero .kicker {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: 48px;
  line-height: 1.15;
  font-weight: 300;
  font-style: italic;
  margin: 0 0 20px;
  letter-spacing: -0.5px;
}
.hero p.lead {
  color: var(--silver);
  font-size: 17px;
  line-height: 1.6;
  max-width: 620px;
  margin: 0 0 36px;
}
.cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--carbon);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: 4px;
}
.cta:hover { opacity: 0.9; }
.live-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--carbon);
  animation: pulse 1.4s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* Sections */
.section { padding: 50px 32px; border-top: 1px solid var(--border); max-width: 1080px; }
.section h2 { font-size: 18px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 28px; color: var(--text); }

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.card {
  background: var(--graphite);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 15px; font-weight: 600; }
.card p { margin: 0; color: var(--silver); font-size: 13.5px; line-height: 1.6; }

.alert-card {
  background: var(--graphite);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  padding: 16px 20px;
  margin-bottom: 12px;
}
.alert-card .head { font-weight: 700; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 6px; }
.alert-card .body { color: var(--silver); font-size: 13.5px; }
.alert-card .data { font-size: 13.5px; margin-top: 4px; }

.example-row { display: grid; grid-template-columns: 40px 1fr 60px; align-items: center; gap: 12px; margin-bottom: 10px; font-size: 13px; }
.bar-track { background: var(--slate); border-radius: 3px; height: 16px; overflow: hidden; }
.bar-fill { background: var(--accent); height: 100%; }

footer {
  padding: 32px; border-top: 1px solid var(--border);
  color: var(--silver); font-size: 12px; text-align: center;
}
.social-links { margin-top: 12px; display: flex; justify-content: center; gap: 18px; }
.social-links a {
  color: var(--silver);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.social-links a:hover { color: var(--accent); }

/* Ticker */
.ticker-wrap {
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: var(--graphite);
  padding: 10px 0;
}
.ticker {
  display: inline-flex;
  white-space: nowrap;
  animation: ticker-scroll 40s linear infinite;
}
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 24px;
  border-right: 1px solid var(--border);
  font-size: 13px;
}
.ticker-item .tla { font-weight: 700; letter-spacing: 0.5px; }
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.move { font-size: 11px; font-weight: 700; margin-left: 6px; }
.move-up { color: var(--gain); }
.move-down { color: var(--danger); }
.move-flat { color: var(--silver); }

/* Live page */
.live-wrap { padding: 24px 32px; }
.live-header { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.live-header h1 { font-size: 20px; font-weight: 600; letter-spacing: 1px; margin: 0; text-transform: uppercase; }
.meta { color: var(--silver); font-size: 13px; }

.diff { font-size: 11px; font-weight: 600; margin-left: 4px; }
.diff-good { color: var(--gain); }
.diff-bad { color: var(--danger); }
.diff-flat { color: var(--silver); }

.trend { font-size: 11px; font-weight: 600; white-space: nowrap; }
.trend-closing { color: var(--gain); }
.trend-opening { color: var(--danger); }
.trend-stable { color: var(--silver); }

.degradation { margin-left: 6px; color: var(--neutral); font-size: 12px; }

/* Settings */
.settings { position: relative; margin-left: auto; }
.settings-btn {
  background: var(--graphite);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  width: 32px; height: 32px;
  font-size: 15px;
  cursor: pointer;
}
.settings-btn:hover { border-color: var(--accent); }
.settings-panel {
  display: none;
  position: absolute;
  right: 0;
  top: 40px;
  background: var(--graphite);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 16px;
  font-size: 13px;
  white-space: nowrap;
  z-index: 10;
}
.settings-panel.open { display: block; }
.settings-panel label { display: flex; align-items: center; gap: 8px; cursor: pointer; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--silver); font-weight: 500; text-transform: uppercase; font-size: 11px; letter-spacing: 1px; }
tbody tr:hover td { background: var(--graphite); }
td.mono, th.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }

.team-bar { display: inline-block; width: 4px; height: 18px; vertical-align: middle; margin-right: 10px; border-radius: 2px; }
.pos { font-weight: 700; width: 30px; font-family: "JetBrains Mono", ui-monospace, monospace; }
.tla { font-weight: 700; letter-spacing: 0.5px; }
.pit { color: var(--neutral); font-weight: 600; font-size: 11px; margin-left: 8px; }
.out { color: var(--silver); font-weight: 600; font-size: 11px; margin-left: 8px; }

.tyre-badge {
  display: inline-block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}
.tyre-SOFT { background: rgba(255,51,51,0.15); color: var(--tyre-soft); }
.tyre-MEDIUM { background: rgba(255,215,0,0.15); color: var(--tyre-medium); }
.tyre-HARD { background: rgba(224,224,224,0.15); color: var(--tyre-hard); }
.tyre-INTERMEDIATE { background: rgba(0,204,68,0.15); color: var(--tyre-inter); }
.tyre-WET { background: rgba(0,136,255,0.15); color: var(--tyre-wet); }

.updated { color: #4a4a5a; font-size: 12px; margin-top: 16px; }

/* Reference pages (circuits / drivers) */
.ref-wrap { padding: 32px; max-width: 1080px; }
.ref-wrap h1 { font-size: 20px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 24px; }
.ref-wrap .back { display: inline-block; color: var(--silver); font-size: 13px; margin-bottom: 18px; }
.ref-wrap .back:hover { color: var(--text); }

.ref-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.ref-card {
  display: block;
  background: var(--graphite);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 18px;
  color: var(--text);
}
.ref-card:hover { border-color: var(--accent); }
.ref-card h3 { margin: 0 0 6px; font-size: 14px; font-weight: 600; }
.ref-card p { margin: 0; color: var(--silver); font-size: 13px; }

.ref-flag { width: 40px; height: auto; border-radius: 3px; margin-bottom: 10px; display: block; }

.driver-card { position: relative; padding-top: 14px; }
.driver-card .team-bar { position: absolute; top: 0; left: 0; width: 100%; height: 4px; border-radius: 0; }
.driver-photo { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 4px; margin-bottom: 10px; background: var(--slate); }

.ref-table { width: 100%; border-collapse: collapse; font-size: 14px; max-width: 600px; }
.ref-table th, .ref-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.ref-table th { color: var(--silver); font-weight: 500; text-transform: uppercase; font-size: 11px; letter-spacing: 1px; width: 160px; }

.ref-table-list { max-width: none; }
.ref-table-list thead th { font-size: 11px; }
.ref-table-list tbody tr { cursor: pointer; }
.ref-table-list tbody tr:hover td { background: var(--graphite); }

/* Table scroll wrapper (mobile) */
.table-scroll { overflow-x: auto; }
.chart-scroll { overflow-x: auto; }

/* Lap chart */
.lap-chart-controls { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.lap-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--graphite);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}
.lap-chart { width: 100%; min-width: 600px; height: 240px; }
.tyre-chart { height: auto; }

/* Chart fullscreen + zoom controls */
.chart-wrap { position: relative; }
.chart-toolbar { display: flex; justify-content: flex-end; gap: 6px; margin-bottom: 8px; }
.chart-btn {
  background: var(--graphite);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  min-width: 32px;
}
.chart-btn:hover { background: var(--slate); }
.chart-zoom-label { min-width: 52px; font-variant-numeric: tabular-nums; }
.chart-wrap:fullscreen {
  background: var(--carbon);
  padding: 20px;
  display: flex;
  flex-direction: column;
}
.chart-wrap:fullscreen .chart-scroll {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.chart-wrap:fullscreen .lap-chart {
  width: 100%;
  height: 100%;
  min-width: 0;
}

/* Preferences (theme color + favorites) */
.prefs { position: relative; }
.prefs-panel { width: 240px; }
.prefs-section { margin-bottom: 14px; }
.prefs-section:last-child { margin-bottom: 0; }
.prefs-title { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--silver); margin-bottom: 8px; }

.swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.swatch {
  width: 24px; height: 24px;
  border-radius: 4px;
  border: 1px solid var(--border);
  cursor: pointer;
}
.swatch:hover { border-color: var(--text); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: var(--slate);
  border: 1px solid var(--border);
  color: var(--silver);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}
.chip.active { color: var(--text); border-color: var(--accent); }

.favorite-row td:first-child { box-shadow: inset 3px 0 0 var(--accent); }

/* Race calendar */
.next-race {
  background: var(--graphite);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 24px;
  margin-bottom: 16px;
}
.next-race-name { font-size: 18px; font-weight: 600; }
.next-race-meta { color: var(--silver); font-size: 13px; margin-top: 4px; }
.countdown { display: flex; gap: 24px; margin-top: 18px; }
.cd-unit { display: flex; flex-direction: column; align-items: center; }
.cd-unit span {
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}
.cd-unit label { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--silver); margin-top: 4px; }

/* Compare */
.compare-form { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }
.compare-form select {
  background: var(--graphite);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 10px 14px;
  font-size: 14px;
  max-width: 240px;
}
.compare-form .vs { color: var(--silver); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; }
.compare-form button {
  background: var(--accent);
  color: var(--carbon);
  border: none;
  border-radius: 4px;
  padding: 10px 20px;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
}
.compare-form button:hover { opacity: 0.9; }
.compare-table th:first-child { width: 200px; }
.compare-table td { text-align: center; }
.compare-table thead th:not(:first-child) { text-align: center; }

/* Newsletter */
.newsletter { max-width: 480px; }
.newsletter form { display: flex; gap: 8px; margin-top: 16px; }
.newsletter input[type="email"] {
  flex: 1;
  background: var(--graphite);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 10px 14px;
  font-size: 14px;
}
.newsletter button {
  background: var(--accent);
  color: var(--carbon);
  border: none;
  border-radius: 4px;
  padding: 10px 20px;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
}
.newsletter button:hover { opacity: 0.9; }
.newsletter .msg { margin-top: 10px; font-size: 13px; }
.msg-good { color: var(--gain); }
.msg-bad { color: var(--danger); }

/* Mobile */
@media (max-width: 768px) {
  nav { padding: 14px 16px; flex-wrap: wrap; gap: 10px; }
  nav .links a { margin-left: 0; margin-right: 16px; }
  nav .search-form input { margin-left: 0; width: 100%; }

  .hero { padding: 50px 16px 40px; }
  .hero h1 { font-size: 32px; }
  .hero p.lead { font-size: 15px; }

  .section { padding: 32px 16px; }
  .ref-wrap { padding: 16px; }

  .ticker-item { padding: 0 14px; font-size: 12px; }

  .live-wrap { padding: 16px; }
  .live-header h1 { font-size: 16px; }
  table { font-size: 12px; }
  th, td { padding: 8px; }

  .newsletter form { flex-direction: column; }
}