:root {
  --bg: #07111f;
  --bg-accent: #132a46;
  --panel: rgba(7, 17, 31, 0.82);
  --text: #f4f7fb;
  --muted: #9eb4cc;
  --accent: #ffb703;
  --danger: #fb5607;
  --glow: rgba(255, 183, 3, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(34, 72, 122, 0.55), transparent 32%),
    linear-gradient(160deg, var(--bg) 0%, #02060d 100%);
}

.layout {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(320px, 420px);
  gap: 32px;
  align-items: center;
  justify-content: center;
  padding: 32px 0;
}

.intro,
.game-shell {
  position: relative;
}

.intro {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(14px);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  line-height: 0.95;
}

.description {
  margin: 18px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.controls span,
.card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 16px;
}

.controls span {
  padding: 10px 12px;
  color: var(--muted);
}

kbd {
  padding: 2px 7px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.card {
  padding: 16px;
}

.label {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.card strong {
  font-size: 1.8rem;
}

.game-shell {
  width: min(100%, 420px);
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 24px 80px rgba(0, 0, 0, 0.42);
  background: linear-gradient(180deg, #0f1e33 0%, #040811 100%);
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 12px;
  padding: 24px;
  text-align: center;
  background: rgba(4, 8, 17, 0.72);
  border-radius: 30px;
}

.overlay.hidden {
  display: none;
}

.overlay h2 {
  margin: 0;
  font-size: 2rem;
}

.overlay p {
  margin: 0;
  color: var(--muted);
}

button {
  justify-self: center;
  margin-top: 4px;
  border: 0;
  border-radius: 999px;
  padding: 12px 22px;
  font: inherit;
  font-weight: 700;
  color: #1b1300;
  background: linear-gradient(135deg, #ffd166 0%, var(--accent) 100%);
  box-shadow: 0 10px 30px var(--glow);
  cursor: pointer;
}

button:hover {
  transform: translateY(-1px);
}

@media (max-width: 920px) {
  .layout {
    grid-template-columns: 1fr;
    padding: 20px 0 28px;
  }

  .intro {
    order: 2;
  }

  .game-shell {
    order: 1;
    margin: 0 auto;
  }
}