body.pong-page {
  height: auto;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  touch-action: auto;
}

.pong-page .game-container {
  position: relative;
  height: clamp(460px, calc(100svh - 130px), 800px);
  min-height: 460px;
  flex: 0 0 auto;
}

.game-jump {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(5, 12, 17, 0.92);
}

.game-jump a {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.game-jump a:hover,
.game-jump a:focus-visible {
  text-decoration: underline;
}

.game-guide {
  width: min(1100px, calc(100% - (var(--page-x) * 2)));
  margin-inline: auto;
  padding: clamp(52px, 8vw, 88px) 0 80px;
  scroll-margin-top: 90px;
}

.game-guide__intro {
  max-width: 780px;
  margin-bottom: 34px;
}

.game-guide__eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.game-guide h2,
.game-guide h3,
.game-guide p,
.game-guide ol,
.game-guide ul,
.game-guide dl {
  margin-top: 0;
}

.game-guide h2 {
  margin-bottom: 14px;
  color: var(--fg);
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.game-guide h3 {
  margin-bottom: 10px;
  color: var(--fg);
  font-size: 18px;
}

.game-guide p,
.game-guide li,
.game-guide dd {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.game-guide a {
  color: var(--accent);
}

.guide-steps,
.guide-grid,
.tips-grid {
  display: grid;
  gap: 12px;
}

.guide-steps {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 0 48px;
  padding: 0;
  counter-reset: guide-step;
  list-style: none;
}

.guide-steps li {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--border-strong);
  background: rgba(11, 23, 30, 0.74);
  counter-increment: guide-step;
}

.guide-steps li::before {
  display: block;
  margin-bottom: 10px;
  color: var(--accent);
  content: "0" counter(guide-step);
  font-family: "Orbitron", monospace;
  font-size: 12px;
  font-weight: 700;
}

.guide-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 48px;
}

.guide-card {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--border-strong);
  background:
    radial-gradient(circle at 100% 0, rgba(96, 213, 255, 0.08), transparent 38%),
    rgba(11, 23, 30, 0.78);
}

.guide-card p:last-child,
.guide-card ul:last-child,
.guide-card dl:last-child,
.guide-card dd:last-child {
  margin-bottom: 0;
}

.difficulty-list {
  margin: 0;
}

.difficulty-list dt {
  margin-bottom: 4px;
  color: var(--fg);
  font-family: "Orbitron", monospace;
  font-size: 14px;
  font-weight: 700;
}

.difficulty-list dt:not(:first-child) {
  margin-top: 18px;
}

.difficulty-list dd {
  margin-left: 0;
}

.tips-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 0 48px;
  padding: 0;
  list-style: none;
}

.tips-grid li {
  padding: 18px 20px;
  border-left: 2px solid var(--accent);
  background: rgba(120, 246, 207, 0.04);
}

.ranking-callout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-bottom: 56px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgba(120, 246, 207, 0.28);
  background: rgba(120, 246, 207, 0.055);
}

.ranking-callout h2 {
  margin-bottom: 6px;
  font-size: clamp(22px, 3vw, 30px);
}

.ranking-callout p {
  margin-bottom: 0;
}

.ranking-callout a {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--canvas-deep);
  font-size: 13px;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.faq-list {
  margin: 0;
}

.faq-list > div {
  padding: 20px 0;
  border-top: 1px solid var(--border);
}

.faq-list > div:last-child {
  border-bottom: 1px solid var(--border);
}

.faq-list dt {
  margin-bottom: 7px;
  color: var(--fg);
  font-weight: 700;
}

.faq-list dd {
  margin: 0;
}

@media (max-width: 760px) {
  .pong-page .game-container {
    height: max(460px, calc(100svh - 116px));
  }

  .guide-steps,
  .guide-grid,
  .tips-grid {
    grid-template-columns: 1fr;
  }

  .ranking-callout {
    grid-template-columns: 1fr;
  }

  .ranking-callout a {
    justify-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}