/* ============================================================
   box-box web companion — dark F1 theme
   Mirrors styles.go palette as CSS custom properties.
   ============================================================ */

:root {
  --f1-red:    #E10600;
  --surface-0: #0d0d1a;   /* page background */
  --surface-1: #1B1B2F;   /* card background */
  --surface-2: #222236;   /* elevated card */
  --surface-3: #2D2D44;   /* borders, dividers */
  --text-1:    #ffffff;
  --text-2:    #8888aa;
  --text-3:    #555577;

  --soft:  #FF3333;
  --medium:#FFD700;
  --hard:  #CCCCCC;
  --inter: #39B54A;
  --wet:   #0080FF;

  font-family: system-ui, -apple-system, sans-serif;
  font-size: 14px;
  color: var(--text-1);
  background: var(--surface-0);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

a { color: inherit; text-decoration: none; }

/* ---- Nav ---- */
.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.75rem 1.5rem;
  background: var(--surface-1);
  border-bottom: 1px solid var(--surface-3);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--f1-red);
  letter-spacing: 0.04em;
}
.nav-links {
  display: flex;
  gap: 1.5rem;
}
.nav-links a {
  color: var(--text-2);
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.15s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-1); }
.nav-links a.active { border-bottom: 2px solid var(--f1-red); padding-bottom: 2px; }

/* ---- Live dot ---- */
.live-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #E10600;
  animation: pulse 1.2s ease-in-out infinite;
}
.live-dot.large { width: 12px; height: 12px; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ---- Stale banner ---- */
.stale-banner {
  background: #2a1800;
  border-bottom: 1px solid #aa6600;
  color: #ffcc66;
  padding: 0.5rem 1.5rem;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.stale-banner details summary { cursor: pointer; color: #aa8844; }
.stale-banner details p { padding: 0.4rem 0; color: var(--text-2); }

/* ---- Page layout ---- */
.page-header {
  padding: 1.25rem 1.5rem 0.75rem;
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.back-btn {
  color: var(--text-2);
  font-size: 0.85rem;
  white-space: nowrap;
  transition: color 0.15s;
}
.back-btn:hover { color: var(--text-1); }
.session-info { color: var(--text-2); font-size: 0.85rem; }

/* ---- Cards ---- */
.card {
  background: var(--surface-1);
  border: 1px solid var(--surface-3);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}
.card-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 0.6rem;
}

/* ---- Home hero ---- */
.home-hero {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1rem;
  padding: 1rem 1.5rem;
}
@media (max-width: 900px) {
  .home-hero { grid-template-columns: 1fr; }
}

/* Next race card */
.next-race { text-align: center; }
.next-race-flag   { font-size: 3rem; margin: 0.25rem 0; }
.next-race-name   { font-size: 1.4rem; font-weight: 700; margin: 0.25rem 0; }
.next-race-circuit { color: var(--text-2); font-size: 0.85rem; margin-bottom: 0.5rem; }
.next-race-session {
  color: var(--text-1);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 0.45rem;
}
.next-race-countdown {
  font-size: 1.6rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--f1-red);
  letter-spacing: 0.04em;
}

/* Championship sidebar */
.champ-sidebar { display: flex; flex-direction: column; gap: 0.45rem; }
.champ-row {
  display: grid;
  grid-template-columns: 20px 12px 36px 1fr 40px;
  align-items: center;
  gap: 0.4rem;
}
.champ-pos  { color: var(--text-2); font-size: 0.8rem; text-align: right; }
.champ-tla  { font-weight: 600; font-size: 0.85rem; }
.champ-bar-wrap {
  background: var(--surface-3);
  border-radius: 2px;
  height: 6px;
  overflow: hidden;
}
.champ-bar {
  height: 100%;
  background: var(--team-color, var(--f1-red));
  border-radius: 2px;
  transition: width 0.4s;
}
.champ-pts { font-size: 0.8rem; color: var(--text-2); text-align: right; }

/* Team color swatch */
.team-swatch {
  display: inline-block;
  width: 3px;
  height: 14px;
  background: var(--team-color, #666);
  border-radius: 2px;
  vertical-align: middle;
  margin-right: 6px;
}

/* ---- Season meetings grid ---- */
.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 0 1.5rem;
  margin-bottom: 0.5rem;
}
.meetings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  padding: 0 1.5rem 2rem;
}
.meeting-card {
  display: block;
  background: var(--surface-1);
  border: 1px solid var(--surface-3);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.meeting-card:hover { background: var(--surface-2); border-color: var(--text-3); }
.meeting-card.past  { opacity: 0.55; }
.meeting-flag   { font-size: 1.5rem; margin-bottom: 0.3rem; }
.meeting-name   { font-weight: 600; font-size: 0.9rem; line-height: 1.3; }
.meeting-circuit { color: var(--text-2); font-size: 0.78rem; margin-top: 0.15rem; }
.meeting-date   { color: var(--text-3); font-size: 0.75rem; margin-top: 0.3rem; }

/* ---- Session pills ---- */
.session-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
}
.pill {
  background: var(--surface-2);
  border: 1px solid var(--surface-3);
  border-radius: 20px;
  color: var(--text-2);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.3rem 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.pill:hover { background: var(--surface-3); color: var(--text-1); }
.pill.active {
  background: var(--team-color, var(--f1-red));
  border-color: transparent;
  color: #fff;
}

/* ---- Tabs ---- */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--surface-3);
  padding: 0 1.5rem;
  margin-bottom: 1rem;
}
.tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-2);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.6rem 1rem;
  text-transform: uppercase;
  transition: color 0.15s, border-color 0.15s;
}
.tab:hover { color: var(--text-1); }
.tab.active { color: var(--text-1); border-bottom-color: var(--f1-red); }

/* ---- Data table ---- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin: 0 1.5rem 1.5rem;
  width: calc(100% - 3rem);
}
.data-table th {
  background: var(--surface-1);
  border-bottom: 1px solid var(--surface-3);
  color: var(--text-3);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.5rem 0.75rem;
  text-align: left;
  text-transform: uppercase;
}
.data-table td {
  border-bottom: 1px solid var(--surface-3);
  padding: 0.5rem 0.75rem;
  vertical-align: middle;
}
.data-table tr:hover td { background: var(--surface-1); }
.pos-cell { font-weight: 700; display: flex; align-items: center; gap: 0.4rem; }

/* ---- Badges ---- */
.badge {
  border-radius: 3px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 1px 5px;
  text-transform: uppercase;
}
.badge.dnf { background: #442200; color: #ff8844; }
.badge.dns { background: #333355; color: #8888cc; }
.badge.dsq { background: #220000; color: #ff4444; }
.badge.pit { background: #003366; color: #66aaff; }
.badge.out { background: #330000; color: #ff6666; }

/* ---- Tyre badges ---- */
.tyre-badge {
  border-radius: 3px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 1px 6px;
}
.tyre-soft   { background: var(--soft);   color: #fff; }
.tyre-medium { background: var(--medium); color: #111; }
.tyre-hard   { background: var(--hard);   color: #111; }
.tyre-inter  { background: var(--inter);  color: #fff; }
.tyre-wet    { background: var(--wet);    color: #fff; }
.tyre-unknown { background: var(--surface-3); color: var(--text-2); }

/* ---- Timing tower ---- */
.live-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.5rem 1.5rem 0.75rem;
  font-size: 0.85rem;
}
.timing-tower {
  width: calc(100% - 3rem);
  margin: 0 1.5rem 1.5rem;
  border-collapse: collapse;
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}
.timing-tower th {
  background: var(--surface-1);
  border-bottom: 1px solid var(--surface-3);
  color: var(--text-3);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.5rem 0.75rem;
  text-align: left;
  text-transform: uppercase;
}
.timing-tower td {
  border-bottom: 1px solid var(--surface-3);
  padding: 0.45rem 0.75rem;
  vertical-align: middle;
}
.timing-tower .in-pit td   { background: rgba(0,51,102,0.25); }
.timing-tower .retired td  { background: rgba(60,0,0,0.3); opacity: 0.7; }
.timing-tower .pit-out td  { background: rgba(0,80,0,0.2); }
.timing-tower .pb          { color: #aaffaa; }
.timing-tower .ob          { color: #cc44ff; }
.pos-delta { color: var(--text-3); font-size: 0.75rem; }
.clock { font-variant-numeric: tabular-nums; font-weight: 600; margin-left: auto; }

/* Track status */
.track-status {
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  text-transform: uppercase;
}
.track-green  { background: #1a3a1a; color: #44cc44; }
.track-yellow { background: #3a2a00; color: #ffcc00; }
.track-red    { background: #3a0000; color: #ff4444; }
.track-sc     { background: #3a2a00; color: #ffaa00; }
.track-vsc    { background: #1a2a3a; color: #6699ff; }

/* ---- Race control panel ---- */
.rc-panel {
  background: var(--surface-1);
  border: 1px solid var(--surface-3);
  border-radius: 8px;
  margin: 0 1.5rem 1.5rem;
  padding: 0.75rem 1rem;
}
.rc-message {
  border-bottom: 1px solid var(--surface-3);
  display: flex;
  gap: 0.75rem;
  font-size: 0.82rem;
  padding: 0.4rem 0;
}
.rc-message:last-child { border-bottom: none; }
.rc-time  { color: var(--text-3); flex-shrink: 0; font-size: 0.75rem; }
.rc-flag  { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.rc-flag  { background: var(--surface-3); border-radius: 2px; padding: 1px 5px; }
.rc-safetycarpanel .rc-flag,
.rc-safetycarpanel { color: #ffcc00; }

/* ---- Driver selector ---- */
.driver-selector {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.5rem 0.75rem;
}
.driver-selector label { color: var(--text-2); font-size: 0.8rem; margin-right: 0.25rem; }

/* ---- Year selector ---- */
.year-selector {
  display: flex;
  gap: 0.4rem;
  margin-left: auto;
}

/* ---- Skeleton loading ---- */
.skeleton-wrap { padding: 0.75rem 1.5rem; }
.skeleton {
  background: linear-gradient(
    90deg,
    var(--surface-1) 25%,
    var(--surface-2) 50%,
    var(--surface-1) 75%
  );
  background-size: 200% 100%;
  border-radius: 6px;
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---- Empty state ---- */
.empty-msg {
  color: var(--text-2);
  font-size: 0.9rem;
  padding: 2rem 1.5rem;
  text-align: center;
}
.empty-msg.large { font-size: 1.1rem; padding: 4rem 1.5rem; }

/* ---- D3 charts ---- */
#strategy-chart,
#laps-chart,
#telemetry-chart,
#track-chart {
  padding: 0 1.5rem 1.5rem;
}
#strategy-chart svg,
#laps-chart svg,
#telemetry-chart svg,
#track-chart svg { display: block; }

/* D3 axis text */
.tick text { fill: var(--text-2); font-size: 11px; }
.domain, .tick line { stroke: var(--surface-3); }

/* Tooltip */
.chart-tooltip {
  background: var(--surface-2);
  border: 1px solid var(--surface-3);
  border-radius: 6px;
  color: var(--text-1);
  font-size: 0.8rem;
  padding: 6px 10px;
  pointer-events: none;
  position: fixed;
  z-index: 200;
}