:root {
  --bg-top: #201b2e;
  --bg-bottom: #07131f;
  --panel: rgba(10, 17, 27, 0.82);
  --panel-strong: rgba(8, 13, 22, 0.94);
  --line: rgba(255, 255, 255, 0.12);
  --glow: rgba(255, 180, 107, 0.34);
  --text: #f8f3eb;
  --muted: #d7cfc0;
  --accent: #ffb86d;
  --accent-strong: #ff7e5f;
  --good: #8ef0d1;
  --warning: #ffe184;
  --shadow: rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Avenir Next Condensed", "Trebuchet MS", "Gill Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(255, 185, 118, 0.22), transparent 30%),
    radial-gradient(circle at 18% 22%, rgba(116, 171, 255, 0.15), transparent 24%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom) 68%);
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.03), transparent 24%),
    linear-gradient(300deg, rgba(255, 255, 255, 0.02), transparent 24%);
  opacity: 0.8;
}

.page-shell {
  width: min(1280px, calc(100% - 1.5rem));
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

.masthead {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.eyebrow,
.overlay-kicker {
  margin: 0 0 0.35rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--warning);
  font-size: 0.74rem;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 0.95;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.subtitle {
  margin-top: 0.55rem;
  max-width: 42rem;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.utility-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.utility-button,
.primary-button,
.touch-button {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  transition:
    transform 140ms ease,
    background-color 140ms ease,
    border-color 140ms ease,
    box-shadow 140ms ease;
}

.utility-button {
  min-height: 2.75rem;
  padding: 0.75rem 1.15rem;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
}

.utility-button:hover,
.utility-button:focus-visible,
.primary-button:hover,
.primary-button:focus-visible,
.touch-button:hover,
.touch-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.4);
  outline: none;
}

.primary-button {
  min-height: 3rem;
  padding: 0.9rem 1.4rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #1d0c08;
  font-weight: 700;
  box-shadow: 0 18px 36px -18px rgba(255, 126, 95, 0.68);
}

.race-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 24%),
    var(--panel);
  box-shadow: 0 30px 80px -38px rgba(0, 0, 0, 0.75);
  overflow: hidden;
}

.stage-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #050a11;
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hud {
  position: absolute;
  inset: 1rem 1rem auto;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  pointer-events: none;
}

.hud-chip {
  min-width: 6.75rem;
  padding: 0.55rem 0.8rem 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(7, 12, 18, 0.58);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 24px -18px rgba(0, 0, 0, 0.8);
}

.hud-label {
  display: block;
  margin-bottom: 0.15rem;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.68);
}

.hud-chip strong {
  font-size: 1.15rem;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 1rem;
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 175, 94, 0.2), transparent 32%),
    linear-gradient(180deg, rgba(4, 9, 18, 0.3), rgba(4, 9, 18, 0.72));
  transition: opacity 220ms ease, visibility 220ms ease;
}

.overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.overlay-panel {
  width: min(38rem, 100%);
  padding: 1.3rem 1.35rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(11, 18, 28, 0.82), rgba(8, 13, 21, 0.94));
  backdrop-filter: blur(12px);
  box-shadow: 0 24px 65px -35px var(--shadow);
}

.overlay-copy {
  margin-top: 0.65rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.controls-grid div {
  padding: 0.9rem 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.controls-grid h3 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.controls-grid p {
  color: var(--muted);
  line-height: 1.45;
}

.overlay-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.15rem;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.95rem 1.1rem 1.1rem;
  background: rgba(255, 255, 255, 0.04);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

#status-line {
  color: var(--text);
}

.touch-controls {
  position: absolute;
  inset: auto 0 0;
  display: none;
  justify-content: space-between;
  align-items: flex-end;
  gap: 0.75rem;
  padding: 1rem;
  pointer-events: none;
}

.touch-cluster {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  pointer-events: auto;
}

.touch-actions {
  flex-direction: column;
  align-items: flex-end;
}

.steer-pad {
  position: relative;
  width: min(28vw, 9rem);
  height: min(28vw, 9rem);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(4, 8, 16, 0.34);
  backdrop-filter: blur(8px);
  touch-action: none;
}

.steer-ring {
  position: absolute;
  inset: 0.85rem;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.18);
}

.steer-knob {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 3.4rem;
  height: 3.4rem;
  margin-left: -1.7rem;
  margin-top: -1.7rem;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(255, 214, 149, 0.98), rgba(255, 133, 88, 0.94));
  box-shadow: 0 16px 30px -20px rgba(255, 133, 88, 0.8);
  transform: translate(var(--knob-x, 0px), var(--knob-y, 0px));
}

.touch-button {
  min-width: 5.4rem;
  min-height: 3rem;
  padding: 0.8rem 1.1rem;
  backdrop-filter: blur(10px);
}

.touch-button.gas {
  background: rgba(142, 240, 209, 0.24);
}

.touch-button.drift {
  background: rgba(255, 225, 132, 0.2);
}

.touch-button.brake {
  background: rgba(255, 126, 95, 0.22);
}

.touch-button.active {
  transform: translateY(-1px) scale(0.97);
  border-color: rgba(255, 255, 255, 0.45);
  box-shadow: 0 14px 30px -18px rgba(255, 255, 255, 0.45);
}

@media (pointer: coarse), (max-width: 900px) {
  .touch-controls.enabled {
    display: flex;
  }
}

@media (max-width: 960px) {
  .page-shell {
    width: min(100%, calc(100% - 0.8rem));
    padding-top: 0.65rem;
  }

  .masthead,
  .status-bar {
    flex-direction: column;
  }

  .controls-grid {
    grid-template-columns: 1fr;
  }

  .hud {
    inset: 0.75rem 0.75rem auto;
    gap: 0.55rem;
  }

  .hud-chip {
    min-width: 5.4rem;
    padding: 0.46rem 0.7rem 0.55rem;
  }

  .hud-chip strong {
    font-size: 1rem;
  }
}