:root {
  --bg: #0a0b0d;
  --bg-2: #0e1014;
  --panel: #14161a;
  --panel-2: #1c1f25;
  --text: #f4f5f7;
  --text-dim: #8a8e98;
  --text-mute: #5a5e66;
  --border: #24272d;
  --border-strong: #2f3239;
  --track-shadow: #16181c;
  --track-color: #2a2d33;
  --track-line: rgba(244, 245, 247, 0.18);
  --radius: 14px;
  --radius-sm: 10px;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11', 'ss01';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  letter-spacing: -0.01em;
}

body {
  background:
    radial-gradient(ellipse 900px 600px at 15% -10%, rgba(237, 28, 36, 0.07), transparent 65%),
    radial-gradient(ellipse 800px 500px at 85% 110%, rgba(0, 220, 255, 0.06), transparent 65%),
    radial-gradient(ellipse 600px 400px at 50% 50%, rgba(255, 255, 255, 0.014), transparent 70%),
    var(--bg);
}

/* Subtle static grid overlay — pre-rasterized by the browser, no per-frame cost */
.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 60px 60px;
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000 0%, transparent 100%);
          mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000 0%, transparent 100%);
  z-index: 0;
}

.screen {
  z-index: 1;
}

.screen {
  position: fixed;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  padding: 56px 32px;
  overflow-y: auto;
}

.screen.active {
  display: flex;
}

/* ============ Setup ============ */

.setup-header {
  text-align: center;
  margin-bottom: 40px;
}

h1 {
  font-size: clamp(48px, 7vw, 76px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
  background: linear-gradient(180deg, #ffffff 0%, #c5c8ce 55%, #9ca0a8 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
          color: transparent;
  filter: drop-shadow(0 0 40px rgba(255, 255, 255, 0.06));
}

.subtitle {
  margin-top: 14px;
  color: var(--text-dim);
  font-size: 16px;
  font-weight: 400;
}

.drivers {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 640px;
}

.driver-row {
  display: grid;
  grid-template-columns: 28px 1fr 200px 32px;
  gap: 14px;
  align-items: center;
  padding: 12px 16px;
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.driver-row:focus-within {
  border-color: var(--border-strong);
}

.driver-num {
  color: var(--text-mute);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 500;
}

.driver-row input {
  background: transparent;
  border: 0;
  color: var(--text);
  font: inherit;
  font-size: 16px;
  outline: none;
  width: 100%;
}

.driver-row input::placeholder {
  color: var(--text-mute);
}

.team-select {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.team-select:hover {
  border-color: var(--border-strong);
}

.team-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.team-select select {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 0;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  outline: none;
  cursor: pointer;
  padding-right: 16px;
  flex: 1;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'><polyline points='2,4 5,7 8,4' fill='none' stroke='%238a8e98' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0 center;
}

.team-select select option {
  background: var(--panel);
  color: var(--text);
}

.btn-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-mute);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.btn-icon:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--panel-2);
}

.setup-actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  width: 100%;
  max-width: 640px;
}

.btn {
  flex: 1;
  padding: 14px 24px;
  border-radius: var(--radius);
  font: inherit;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

.btn:hover:not(:disabled) {
  background: var(--panel-2);
  border-color: var(--border-strong);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.btn-primary:hover:not(:disabled) {
  background: #d8dadf;
  color: var(--bg);
  border-color: #d8dadf;
  box-shadow: 0 10px 32px -10px rgba(255, 255, 255, 0.25);
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ============ Race ============ */

#race {
  padding: 0;
  align-items: stretch;
}

.race-stage {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
}

#trackSvg {
  flex: 1;
  width: 100%;
  height: 100%;
  display: block;
}

.track-shadow {
  fill: none;
  stroke: var(--track-shadow);
  stroke-width: 64;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.track {
  fill: none;
  stroke: var(--track-color);
  stroke-width: 56;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.track-line {
  fill: none;
  stroke: var(--track-line);
  stroke-width: 1.2;
  stroke-dasharray: 8 12;
  stroke-linecap: round;
}

#finish-line {
  stroke: #f4f5f7;
  stroke-width: 4;
  stroke-dasharray: 4 4;
}

.car {
  will-change: transform;
}

.leaderboard {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 280px;
  background: rgba(20, 22, 26, 0.78);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px 14px 10px;
}

.lb-header {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-mute);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 10px;
  padding: 0 4px;
}

.standings {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.standing {
  display: grid;
  grid-template-columns: 22px 8px 1fr auto;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  padding: 8px 4px;
  border-radius: 6px;
  transition: background 0.3s ease, opacity 0.3s ease;
}

.standing + .standing {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.standing.finished {
  color: var(--text-dim);
}

.standing.finished .standing-pos {
  color: var(--text);
}

.standing-pos {
  color: var(--text-mute);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

.standing-color {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.standing-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.standing-prog {
  font-variant-numeric: tabular-nums;
  color: var(--text-mute);
  font-size: 12px;
  font-weight: 500;
}

.standing.finished .standing-prog {
  color: var(--text);
}

.countdown {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  font-size: clamp(140px, 22vw, 240px);
  font-weight: 700;
  letter-spacing: -0.06em;
  color: var(--text);
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.25s ease, transform 0.25s ease;
  text-shadow: 0 8px 60px rgba(0, 0, 0, 0.8);
}

.countdown.show {
  opacity: 1;
  transform: scale(1);
}

/* ============ Results ============ */

#results {
  align-items: center;
  justify-content: center;
}

.results-header {
  margin-bottom: 32px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-mute);
  font-weight: 500;
  margin-bottom: 14px;
}

.eyebrow::before,
.eyebrow::after {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, currentColor);
  opacity: 0.55;
}

.eyebrow::after {
  background: linear-gradient(90deg, currentColor, transparent);
}

.results-header h2 {
  font-size: clamp(40px, 5vw, 56px);
  letter-spacing: -0.035em;
  font-weight: 700;
}

.final-order {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 480px;
  margin-bottom: 24px;
}

.final-row {
  display: grid;
  grid-template-columns: 32px 12px 1fr;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  animation: rowIn 0.5s ease backwards;
}

.final-row:nth-child(1) { animation-delay: 0.05s; border-color: rgba(255, 215, 77, 0.35); }
.final-row:nth-child(2) { animation-delay: 0.1s;  border-color: rgba(216, 220, 224, 0.28); }
.final-row:nth-child(3) { animation-delay: 0.15s; border-color: rgba(205, 148, 114, 0.32); }
.final-row:nth-child(4) { animation-delay: 0.2s; }
.final-row:nth-child(5) { animation-delay: 0.25s; }
.final-row:nth-child(6) { animation-delay: 0.3s; }
.final-row:nth-child(7) { animation-delay: 0.35s; }
.final-row:nth-child(8) { animation-delay: 0.4s; }
.final-row:nth-child(9) { animation-delay: 0.45s; }
.final-row:nth-child(10) { animation-delay: 0.5s; }

@keyframes rowIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.final-pos {
  font-size: 18px;
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
  font-weight: 500;
}

.final-row:nth-child(1) .final-pos { color: #ffd84d; }
.final-row:nth-child(2) .final-pos { color: #d8dce0; }
.final-row:nth-child(3) .final-pos { color: #cd9472; }

.final-color {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.final-name {
  font-size: 17px;
  font-weight: 500;
}

.final-team {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 2px;
}

#restart {
  flex: 0 0 auto;
  width: auto;
  align-self: center;
  padding: 12px 28px;
  font-size: 14px;
}

.signature-wrap {
  margin-top: auto;
  padding-top: 40px;
  width: 100%;
  display: flex;
  justify-content: center;
}

.signature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-mute);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.signature:hover {
  color: var(--text);
  border-color: var(--border);
  background: var(--panel);
}

.signature svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

@media (max-width: 720px) {
  .leaderboard { width: 220px; right: 16px; top: 16px; padding: 12px 10px 8px; }
  .driver-row { grid-template-columns: 22px 1fr 150px 28px; gap: 10px; padding: 10px 12px; }
  .screen { padding: 32px 18px; }
}