/* Shared styles for each game page */
:root {
  --bg-0: #07071a;
  --bg-1: #0e0e2a;
  --surface: rgba(20, 20, 58, 0.55);
  --surface-hi: rgba(30, 30, 80, 0.7);
  --border: rgba(19, 103, 229, 0.25);
  --border-hi: rgba(19, 103, 229, 0.55);
  --primary: #1367e5;
  --primary-2: #0b3fc4;
  --accent: #38bdf8;
  --accent-2: #6366f1;
  --success: #34d399;
  --text: #f5f7ff;
  --text-dim: #a5a8c8;
  --text-mute: #6e7196;
  --header-bg: rgba(7, 7, 26, 0.7);
  --page-glow: rgba(99, 102, 241, 0.18);
}

:root[data-theme="light"] {
  --bg-0: #f4f5fb;
  --bg-1: #eceefb;
  --surface: rgba(255, 255, 255, 0.75);
  --surface-hi: rgba(255, 255, 255, 0.94);
  --border: rgba(19, 103, 229, 0.18);
  --border-hi: rgba(19, 103, 229, 0.4);
  --text: #191a2e;
  --text-dim: #4c4e6d;
  --text-mute: #7d7fa0;
  --header-bg: rgba(255, 255, 255, 0.78);
  --page-glow: rgba(99, 102, 241, 0.10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  background:
    radial-gradient(ellipse at top, var(--page-glow), transparent 60%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
  min-height: 100vh;
  color: var(--text);
  font-family: 'Space Grotesk', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}
canvas, #game3d { transition: none; }
a { color: var(--accent); text-decoration: none; }
code { font-family: 'JetBrains Mono', monospace; font-size: 0.9em; color: var(--accent); background: rgba(56, 189, 248, 0.1); padding: 2px 6px; border-radius: 4px; }

.game-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 22px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  background: var(--header-bg);
  position: sticky; top: 0; z-index: 10;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}
.brand-link {
  display: inline-flex; align-items: center; gap: 9px;
  color: var(--text);
  font-weight: 700; font-size: 16px; letter-spacing: -0.02em;
  transition: opacity 0.2s;
}
.brand-link:hover { opacity: 0.85; }
.brand-mark {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 7px;
  color: #fff; font-size: 13px;
  box-shadow: 0 0 16px rgba(19, 103, 229, 0.45);
}
.brand-img { height: 36px; width: auto; display: block; }
:root[data-theme="light"] .brand-img-dark { display: none; }
.brand-img-light { display: none; }
:root[data-theme="light"] .brand-img-light { display: block; }
.brand-accent { color: var(--accent); }
.back-link:hover { color: var(--text); }
.theme-toggle {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  padding: 0;
  border-radius: 50%;
  background: var(--surface-hi);
  border: 1px solid var(--border);
  cursor: pointer;
  color: var(--text-dim);
  transition: background 0.2s, border-color 0.2s, transform 0.2s, color 0.2s;
}
.theme-toggle:hover { transform: translateY(-1px) scale(1.05); border-color: var(--border-hi); color: var(--accent); }
.theme-toggle:active { transform: scale(0.94); }
.theme-icon {
  width: 19px; height: 19px;
  flex-shrink: 0;
  pointer-events: none;
}
.theme-toggle .theme-icon-light { display: none; }
:root[data-theme="light"] .theme-toggle .theme-icon-dark { display: none; }
:root[data-theme="light"] .theme-toggle .theme-icon-light { display: block; }

.game-stage, .score-box, .btn-alt, .info-panel, .message-overlay, .kbd {
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.site-footer {
  margin-top: 40px;
  padding: 26px 24px;
  border-top: 1px solid var(--border);
  background: var(--header-bg);
  text-align: center;
  color: var(--text-mute);
  font-size: 13px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}
.site-footer a { color: var(--text-dim); font-weight: 500; transition: color 0.2s; }
.site-footer a:hover { color: var(--accent); }
.footer-links { display: flex; gap: 20px; justify-content: center; margin-bottom: 10px; flex-wrap: wrap; }
.game-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 18px 24px;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 18px;
  align-items: start;
}
@media (max-width: 880px) {
  .game-wrap { grid-template-columns: 1fr; }
}
.game-stage {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
  display: flex; flex-direction: column;
  align-items: center; gap: 14px;
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.18);
}
.scoreboard {
  display: flex; gap: 10px; flex-wrap: wrap;
  width: 100%; justify-content: center;
}
.score-box {
  background: var(--surface-hi);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 14px;
  text-align: center;
  min-width: 76px;
}
.score-box span {
  display: block;
  font-size: 10px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.score-box strong { font-size: 18px; color: var(--accent); }
.controls {
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
}
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: white;
  font-family: inherit; font-weight: 600; font-size: 13px;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(19, 103, 229, 0.3);
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(19, 103, 229, 0.5); }
.btn-alt {
  background: var(--surface-hi);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: none;
}
.btn-alt:hover { border-color: var(--border-hi); }
.btn-alt:hover { background: var(--surface); border-color: var(--border-hi); }
canvas {
  background: #050514;
  border-radius: 12px;
  border: 1px solid var(--border);
  display: block;
  max-width: 100%;
  touch-action: none;
}
.info-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.14);
}
.info-panel h2 {
  font-size: 15px;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.info-panel p, .info-panel li {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.55;
}
.info-panel ul { list-style: none; display: flex; flex-direction: column; gap: 6px; margin: 6px 0; }
.info-panel ul li { display: flex; gap: 10px; }
.info-panel ul li::before {
  content: "▸";
  color: var(--accent);
  font-weight: 700;
}
.info-panel .kbd {
  display: inline-block;
  padding: 2px 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  background: var(--surface-hi);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
}
.divider {
  height: 1px;
  background: var(--border);
  margin: 12px 0;
}
.game-status {
  font-size: 13px;
  color: var(--text-dim);
  min-height: 18px;
  text-align: center;
}
.game-status strong { color: var(--accent); }

.message-overlay {
  position: absolute;
  inset: 0;
  display: none;
  background: rgba(7, 7, 26, 0.85);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: white;
  text-align: center;
  padding: 24px;
}
.message-overlay.show { display: flex; }
.message-overlay h3 { font-size: 28px; letter-spacing: -0.01em; }
.message-overlay p { color: var(--text-dim); font-size: 15px; }

.stage-canvas-wrap { position: relative; width: 100%; display: grid; place-items: center; }