:root {
  color-scheme: dark;
  --bg: #050816;
  --panel: rgba(13, 20, 39, 0.82);
  --panel-strong: rgba(17, 25, 48, 0.95);
  --line: rgba(255, 255, 255, 0.08);
  --text: #e5eefc;
  --muted: #98a7c7;
  --accent: #7cdbff;
  --accent-2: #7cffa7;
  --danger: #ff7171;
  --shield: #a78bfa;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Inter, "Aptos", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(124, 219, 255, 0.14), transparent 30%),
    radial-gradient(circle at top right, rgba(124, 255, 167, 0.12), transparent 24%),
    radial-gradient(circle at bottom left, rgba(167, 139, 250, 0.08), transparent 26%),
    linear-gradient(180deg, #070b18 0%, #050816 100%);
  color: var(--text);
}

body {
  padding: 24px;
}

.app-shell {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
  position: relative;
}

.app-shell::before,
.app-shell::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(16px);
  opacity: 0.45;
  z-index: -1;
}

.app-shell::before {
  top: 14px;
  right: 20px;
  background: radial-gradient(circle, rgba(124, 255, 167, 0.25), transparent 68%);
}

.app-shell::after {
  bottom: 20px;
  left: 0;
  background: radial-gradient(circle, rgba(124, 219, 255, 0.18), transparent 68%);
}

.hero,
.game-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  border-radius: 28px;
  padding: 26px;
  display: grid;
  grid-template-columns: 1.5fr 0.8fr;
  gap: 18px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -1px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.08), transparent 32%),
    radial-gradient(circle at 82% 18%, rgba(124, 255, 167, 0.12), transparent 20%),
    radial-gradient(circle at 12% 80%, rgba(124, 219, 255, 0.1), transparent 20%);
  pointer-events: none;
}

.hero-copy h1 {
  margin: 10px 0 12px;
  font-size: clamp(42px, 6vw, 68px);
  line-height: 0.98;
  letter-spacing: -0.05em;
  position: relative;
  z-index: 1;
}

.eyebrow,
.overlay-kicker {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(124, 219, 255, 0.12);
  color: var(--accent);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
}

.hero-badge.primary {
  color: #07111f;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

.lede {
  margin: 0;
  max-width: 60ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.hero-actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 1;
}

button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  transition: transform 0.16s ease, opacity 0.16s ease, background 0.16s ease;
}

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

.primary-btn,
.ghost-btn {
  padding: 13px 18px;
  font-size: 15px;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #03111e;
}

.ghost-btn {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid var(--line);
}

.tips {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  position: relative;
  z-index: 1;
}

.tips span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
}

.hero-panel {
  display: grid;
  gap: 14px;
  position: relative;
  z-index: 1;
}

.stat {
  padding: 18px 18px 16px;
  border-radius: 22px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.stat strong {
  font-size: 30px;
  letter-spacing: -0.04em;
}

.feature-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.feature-card {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
}

.feature-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
}

.feature-card span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.game-card {
  border-radius: 30px;
  padding: 18px;
  position: relative;
  overflow: hidden;
}

.game-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 18%),
    radial-gradient(circle at 15% 0%, rgba(124, 219, 255, 0.08), transparent 16%),
    radial-gradient(circle at 92% 0%, rgba(124, 255, 167, 0.08), transparent 16%);
  pointer-events: none;
}

.game-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 2px 4px 16px;
  position: relative;
  z-index: 1;
}

.game-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.game-title-group h2 {
  margin: 0;
  font-size: 18px;
}

.live-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #7cffa7;
  box-shadow: 0 0 0 6px rgba(124, 255, 167, 0.14);
}

.status-pill {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 13px;
  border: 1px solid var(--line);
}

.canvas-wrap {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 20% 20%, rgba(124, 219, 255, 0.16), transparent 20%),
    radial-gradient(circle at 80% 0%, rgba(124, 255, 167, 0.12), transparent 24%),
  linear-gradient(180deg, #07111f, #04070f);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

canvas {
  display: block;
  width: 100%;
  height: min(72vh, 760px);
  touch-action: none;
  position: relative;
  z-index: 1;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(3, 6, 16, 0.4);
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

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

.overlay-card {
  width: min(480px, 100%);
  border-radius: 24px;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(16, 23, 41, 0.94), rgba(8, 13, 26, 0.92));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.42);
  position: relative;
  overflow: hidden;
}

.overlay-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(124, 255, 167, 0.12), transparent 26%);
  pointer-events: none;
}

.overlay-card h3 {
  margin: 12px 0 10px;
  font-size: 28px;
  letter-spacing: -0.04em;
  position: relative;
  z-index: 1;
}

.overlay-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.overlay-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 4px 0 14px;
  position: relative;
  z-index: 1;
}

.overlay-stat {
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
}

.overlay-stat span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

.overlay-stat strong {
  font-size: 24px;
  letter-spacing: -0.04em;
}

.leaderboard {
  margin: 0 0 14px;
  padding: 14px 14px 8px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  position: relative;
  z-index: 1;
}

.leaderboard-title {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
  font-weight: 700;
}

.leaderboard ol {
  margin: 0;
  padding-left: 18px;
}

.leaderboard li {
  margin-bottom: 8px;
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

.footer-row {
  padding: 16px 6px 2px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
  position: relative;
  z-index: 1;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.chip {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  display: inline-block;
}

.chip.star {
  background: #ffd36b;
}

.chip.meteor {
  background: var(--danger);
}

.chip.boost {
  background: var(--accent-2);
}

.chip.shield {
  background: var(--shield);
}

@media (max-width: 920px) {
  body {
    padding: 14px;
  }

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

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

  canvas {
    height: min(68vh, 680px);
  }
}

@media (max-width: 640px) {
  .hero,
  .game-card {
    padding: 16px;
    border-radius: 22px;
  }

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

  .overlay-stats {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    font-size: 40px;
  }

  .overlay-card h3 {
    font-size: 24px;
  }
}