/*
 * game-common.css — 游戏页面共享样式
 *
 * 每个游戏页面通过 :root 定义自己的颜色主题变量：
 *   --bg, --panel, --line, --ink, --accent, --sky
 * 然后再定义页面特有的样式。
 */

/* ── Reset ── */
* { box-sizing: border-box; margin: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  font-family: "Noto Sans SC", sans-serif;
  color: var(--ink);
  display: flex; flex-direction: column;
}

/* ── Top Bar ── */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 16px; border-bottom: 1px solid var(--line); flex-shrink: 0;
}
.back-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 6px 12px; background: var(--panel);
  border: 1px solid var(--line); border-radius: 999px;
  color: var(--ink); font-size: 13px; text-decoration: none;
  transition: border-color 200ms;
}
.back-btn:hover { border-color: var(--accent); }

/* ── HUD ── */
.hud { display: flex; gap: 6px; }
.hud-item {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 4px 10px; text-align: center; min-width: 52px;
}
.hud-label { font-size: 10px; opacity: .6; }
.hud-val { font-size: 14px; font-weight: 700; }
.hud-val.score-color { color: var(--accent); }
.hud-val.time-color { color: var(--sky); }
.hud-val--gold { color: var(--gold); }
.hud-val--accent { color: var(--accent); }

/* ── Game Area ── */
.game-area {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 16px; overflow-y: auto;
}

/* ── Overlay (modal) ── */
.overlay {
  position: fixed; top: 0; right: 0; bottom: 0; left: 0; inset: 0; z-index: 50;
  display: flex; align-items: center; justify-content: center;
  background: rgba(10,6,4,0.85); padding: 20px;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.overlay.hidden { display: none; }
.overlay-card {
  width: min(440px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px; padding: 28px; text-align: center;
}
.overlay-card h2 { font-size: 1.4rem; margin-bottom: 10px; }
.overlay-card p { font-size: 0.9rem; line-height: 1.6; opacity: .85; margin-bottom: 14px; }

/* ── Shared Button ── */
.btn {
  border: 0; border-radius: 999px;
  padding: 10px 24px; font-weight: 700; font-size: 14px; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark, #b8860b));
  color: var(--btn-text, #1c1008);
  transition: transform .12s, filter .12s;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.1); }

/* ── Shared Animations ── */
@keyframes slideIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ── Utility ── */
.hidden { display: none !important; }
.overlay-hint { font-size: 0.82rem; opacity: 0.7; }