:root {
  --bg-0: #e8f4ff;
  --bg-1: #d0e7ff;
  --bg-2: #b8d9ff;
  --blue-900: #0a2a5c;
  --blue-800: #1a3f7a;
  --blue-700: #1e5bb8;
  --blue-600: #2563c9;
  --blue-500: #3b82f6;
  --blue-400: #60a5fa;
  --blue-300: #93c5fd;
  --blue-200: #bfdbfe;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --accent-cyan: #06b6d4;
  --accent-teal: #14b8a6;
  --danger: #ef4444;
  --danger-dark: #b91c1c;
  --success: #10b981;
  --success-light: #34d399;
  --warning: #f59e0b;
  --text: #1e3a5f;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(59, 130, 246, 0.2);
  --shadow-soft: 0 8px 32px -8px rgba(30, 90, 180, 0.15);
  --shadow-strong: 0 20px 60px -15px rgba(30, 90, 180, 0.25);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  min-height: 100%;
  min-height: 100dvh;
  font-family: 'Noto Sans SC', 'ZCOOL KuaiLe', sans-serif;
  color: var(--text);
  background:
    radial-gradient(ellipse at 0% 0%, #c7e2ff 0%, transparent 50%),
    radial-gradient(ellipse at 100% 0%, #d4f0ff 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, #a8d4ff 0%, transparent 60%),
    linear-gradient(180deg, #eaf3ff 0%, #c7e2ff 50%, #a8d4ff 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.8) 0, transparent 8%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.6) 0, transparent 6%),
    radial-gradient(circle at 60% 70%, rgba(255,255,255,0.5) 0, transparent 7%),
    radial-gradient(circle at 30% 85%, rgba(255,255,255,0.4) 0, transparent 5%),
    radial-gradient(circle at 90% 60%, rgba(255,255,255,0.5) 0, transparent 6%);
  z-index: 0;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px;
}

.site-header {
  text-align: center;
  margin-bottom: 40px;
  padding: 20px 0;
}

.site-title {
  font-family: 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
  font-size: 48px;
  letter-spacing: 8px;
  background: linear-gradient(180deg, #1e5bb8 0%, #3b82f6 50%, #60a5fa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}

.site-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  letter-spacing: 2px;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.game-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-strong);
}

.game-card-thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: linear-gradient(135deg, var(--blue-100) 0%, var(--blue-200) 100%);
  overflow: hidden;
}

.game-card-thumb .emoji {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 64px;
  filter: drop-shadow(0 4px 12px rgba(30, 90, 180, 0.2));
}

.game-card-thumb.bomb {
  background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
}

.game-card-thumb.pet {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.game-card-thumb.fishing {
  background: linear-gradient(135deg, #cffafe 0%, #a5f3fc 100%);
}

.game-card-thumb.coming-soon {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

.game-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  z-index: 2;
}

.badge-available {
  background: var(--success);
  color: #fff;
}

.badge-coming {
  background: var(--text-muted);
  color: #fff;
}

.badge-wip {
  background: var(--warning);
  color: #fff;
}

.game-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.game-card-title {
  font-family: 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
  font-size: 22px;
  letter-spacing: 2px;
  color: var(--blue-800);
  margin-bottom: 8px;
}

.game-card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

.game-card-footer {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.game-card-tag {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--blue-100);
  color: var(--blue-700);
}

.game-card-arrow {
  font-size: 18px;
  color: var(--blue-500);
  transition: transform 0.2s ease;
}

.game-card:hover .game-card-arrow {
  transform: translateX(4px);
}

.site-footer {
  text-align: center;
  padding: 20px;
  color: var(--text-light);
  font-size: 13px;
  letter-spacing: 1px;
}

.placeholder-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.placeholder-card {
  width: min(520px, 96vw);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 48px 32px;
  text-align: center;
  box-shadow: var(--shadow-strong);
  backdrop-filter: blur(12px);
}

.placeholder-emoji {
  font-size: 96px;
  margin-bottom: 20px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.placeholder-title {
  font-family: 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
  font-size: 32px;
  letter-spacing: 4px;
  background: linear-gradient(180deg, #1e5bb8 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 12px;
}

.placeholder-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 28px;
}

.placeholder-tags {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.placeholder-tag {
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--blue-100);
  color: var(--blue-700);
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
  font-size: 15px;
  letter-spacing: 2px;
  padding: 14px 28px;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  background: linear-gradient(180deg, #3b82f6 0%, #2563c9 100%);
  color: #fff;
  box-shadow: 0 4px 16px -4px rgba(59, 130, 246, 0.5);
  text-decoration: none;
}

.back-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -4px rgba(59, 130, 246, 0.6);
}

.back-btn:active {
  transform: translateY(0);
}

@media (max-width: 768px) {
  .site-title {
    font-size: 32px;
    letter-spacing: 4px;
  }

  .site-subtitle {
    font-size: 14px;
  }

  .game-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
  }

  .game-card-title {
    font-size: 18px;
  }

  .game-card-desc {
    font-size: 13px;
  }

  .placeholder-card {
    padding: 32px 24px;
  }

  .placeholder-emoji {
    font-size: 72px;
  }

  .placeholder-title {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 16px 12px;
  }

  .site-header {
    margin-bottom: 24px;
  }

  .site-title {
    font-size: 26px;
    letter-spacing: 2px;
  }

  .game-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .game-card-thumb .emoji {
    font-size: 52px;
  }

  .game-card-body {
    padding: 16px;
  }

  .game-card-title {
    font-size: 18px;
  }
}