:root {
  --game-width: 960px;
}

.game-page {
  display: block !important;
  min-height: 100vh;
  height: auto !important;
  background: var(--canvas);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  align-items: initial !important;
  justify-content: initial !important;
}

.game-shell {
  width: min(calc(100% - 40px), var(--game-width));
  min-height: calc(100vh - var(--header-height));
  margin-inline: auto;
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(4rem, 8vw, 7rem);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.game-heading {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.game-heading h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.3rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.05;
  text-wrap: balance;
}

.game-heading p {
  max-width: 680px;
  margin: 0.8rem 0 0;
  color: var(--muted);
  text-wrap: pretty;
}

.game-panel {
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: clamp(1.5rem, 4vw, 2.5rem) 0;
}

.game-panel > :first-child {
  margin-top: 0;
}

.game-panel h2,
.game-panel h1 {
  font-size: clamp(1.55rem, 3.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.game-toolbar,
.game-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
}

.game-help {
  max-width: 720px;
  margin: 2.5rem auto 0;
  color: var(--muted);
  line-height: 1.7;
}

.game-back {
  display: inline-block;
  margin-top: 1.5rem;
  color: var(--accent-dark);
  font-weight: 600;
  text-decoration: none;
}

.game-page canvas {
  max-width: 100%;
}

.game-page input[type="checkbox"],
.game-page input[type="radio"] {
  width: auto;
}

.game-page #username-screen,
.game-page #leaderboard-screen,
.game-page #leaderboard-section {
  max-width: 620px;
  margin-inline: auto;
  text-align: center;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.game-page #game-section {
  max-width: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: clamp(1.5rem, 4vw, 2.5rem) 0;
}

.game-page button {
  border: 1px solid var(--ink);
  border-radius: var(--radius-control);
  background: var(--ink);
  color: #fff;
  font-size: 1rem;
}

.game-page button:hover {
  border-color: var(--accent);
  background: var(--accent);
}

.snake-page #game-board {
  width: min(80vmin, 600px);
  height: min(80vmin, 600px);
}

.tetris-page #game-board {
  width: min(82vw, 360px);
  height: min(72vh, 720px);
  aspect-ratio: 1 / 2;
}

.game-page #username-screen input,
.game-page #login-screen input {
  max-width: 360px;
  margin: 0.75rem auto;
}

.game-page #controls {
  margin-block: 1.25rem;
}

.game-page #info {
  margin-top: 1.25rem;
}

.game-page .leaderboard-entry {
  border-bottom: 1px solid var(--hairline);
  padding: 0.75rem 0;
}

.dinosaur-shell {
  min-height: calc(100vh - var(--header-height));
}

.dinosaur-shell .interstitial-wrapper {
  box-sizing: content-box;
  padding-top: clamp(4rem, 10vw, 7rem);
}

.dinosaur-caption {
  position: relative;
  z-index: 3;
  max-width: 600px;
  margin: 1.5rem auto 0;
  padding: 0 20px 3rem;
  color: var(--muted);
  text-align: center;
}

.dinosaur-caption h1 {
  margin: 0 0 0.5rem;
  color: var(--ink);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 600;
  letter-spacing: -0.035em;
}

@media (max-width: 640px) {
  .game-shell {
    width: min(calc(100% - 32px), var(--game-width));
    padding-top: 2.75rem;
  }

  .game-heading h1 {
    font-size: clamp(1.95rem, 8.5vw, 2.45rem);
  }

  .game-panel {
    padding-block: 1.25rem;
  }
}

@media (max-width: 360px) {
  .game-shell {
    width: min(calc(100% - 24px), var(--game-width));
  }
}