:root {
  color-scheme: dark;
  --bg: #060910;
  --panel: rgba(16, 25, 39, 0.78);
  --panel-strong: rgba(20, 33, 52, 0.94);
  --text: #eef7ff;
  --muted: #aebbd0;
  --border: rgba(255,255,255,.12);
  --accent: #ff8f6b;
  --accent-2: #ffe082;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, color-mix(in srgb, var(--accent) 26%, transparent), transparent 28%),
    radial-gradient(circle at 84% 8%, color-mix(in srgb, var(--accent-2) 20%, transparent), transparent 24%),
    linear-gradient(135deg, #05070d, #09131e 52%, #060910);
  min-height: 100vh;
}
.app-shell {
  width: min(1180px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 28px 0 42px;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 22px;
  align-items: stretch;
  margin-bottom: 22px;
}
.hero-copy, .score-panel, .game-stage, .proof article {
  border: 1px solid var(--border);
  background: linear-gradient(145deg, var(--panel), rgba(6,10,16,.72));
  box-shadow: 0 24px 80px rgba(0,0,0,.35);
  backdrop-filter: blur(14px);
}
.hero-copy {
  position: relative;
  overflow: hidden;
  border-radius: 34px;
  padding: clamp(28px, 5vw, 58px);
}
.hero-copy::after {
  content: "";
  position: absolute;
  inset: auto -8% -32% 34%;
  height: 220px;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 22%, transparent), transparent 68%);
  pointer-events: none;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .16em;
  text-transform: uppercase;
}
h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(48px, 8vw, 96px);
  line-height: .9;
  letter-spacing: -.06em;
}
.hero-copy p:not(.eyebrow) {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 22px);
  line-height: 1.55;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
button {
  border: 1px solid color-mix(in srgb, var(--accent) 52%, white 8%);
  border-radius: 999px;
  padding: 13px 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #071019;
  font-weight: 900;
  letter-spacing: .07em;
  text-transform: uppercase;
  cursor: pointer;
}
button.ghost {
  background: rgba(255,255,255,.06);
  color: var(--text);
}
.score-panel {
  display: grid;
  gap: 12px;
  align-content: center;
  border-radius: 30px;
  padding: 24px;
}
.score-panel span {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.055);
  color: var(--muted);
  font-weight: 700;
}
.score-panel strong {
  color: var(--text);
}
.game-stage {
  overflow: hidden;
  border-radius: 36px;
  padding: 14px;
}
canvas {
  display: block;
  width: 100%;
  min-height: min(64vw, 680px);
  border-radius: 26px;
  background: #07101a;
}
.instructions {
  color: var(--muted);
  padding: 14px 8px 2px;
  line-height: 1.6;
}
.proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.proof article {
  border-radius: 26px;
  padding: 24px;
}
.proof h2 {
  margin: 0 0 10px;
  font-size: 18px;
}
.proof p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}
@media (max-width: 840px) {
  .hero, .proof { grid-template-columns: 1fr; }
  .score-panel { grid-template-columns: repeat(3, minmax(0,1fr)); }
  h1 { font-size: clamp(42px, 15vw, 72px); }
}
@media (max-width: 560px) {
  .score-panel { grid-template-columns: 1fr; }
  canvas { min-height: 520px; }
}