/* ══ 贪吃蛇（/snake/）══
   跟站点同一套观感：卡片圆角 + PaperMod 主题变量（暗色自动跟随）。 */

#snake-root {
  max-width: 460px;
  margin: 1.2rem auto 0;
  padding: 18px 18px 14px;
  background: var(--entry, #ffffff);
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 18px;
  box-shadow: 0 18px 40px -24px rgba(0, 0, 0, 0.45);
}

/* ── 工具条 ── */
.snake-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.snake-bar select {
  padding: 7px 10px;
  border-radius: 10px;
  border: 1px solid var(--border, #cfcfcf);
  background: var(--theme, #1d1e20);
  color: var(--primary, #1f1f1f);
  font-size: 14px;
  font-weight: 600;
}
.snake-stat {
  font-size: 13px;
  color: var(--secondary, #888888);
  font-variant-numeric: tabular-nums;
}
.snake-stat b { color: var(--primary, #1f1f1f); font-size: 15px; }
.snake-stat-first { margin-left: auto; }

.snake-btn {
  padding: 6px 12px;
  font-size: 13px;
  border-radius: 10px;
  border: 1px solid var(--border, #cfcfcf);
  background: var(--theme, #1d1e20);
  color: var(--secondary, #888888);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.snake-btn:hover { color: var(--primary, #1f1f1f); border-color: var(--secondary, #9a9a9a); }
.snake-btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #37a352, #22c55e);
  border-color: transparent;
  font-weight: 700;
}
.snake-btn-primary:hover { color: #fff; filter: brightness(1.08); }

/* ── 画布 ── */
#snake-canvas {
  display: block;
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border, #e0e0e0);
  touch-action: none;
}

/* ── 屏幕方向键（手机用；桌面上也能点） ── */
#snake-dpad {
  display: grid;
  grid-template-columns: repeat(3, 56px);
  grid-template-rows: repeat(2, 44px);
  gap: 6px;
  justify-content: center;
  margin-top: 12px;
}
#snake-dpad [data-dir] {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary, #1f1f1f);
  background: var(--theme, #1d1e20);
  border: 1px solid var(--border, #cfcfcf);
  border-radius: 10px;
  cursor: pointer;
}
#snake-dpad [data-dir]:active { transform: scale(0.95); }
#snake-dpad .snake-dpad-up { grid-column: 2; grid-row: 1; }
#snake-dpad .snake-dpad-left { grid-column: 1; grid-row: 2; }
#snake-dpad .snake-dpad-down { grid-column: 2; grid-row: 2; }
#snake-dpad .snake-dpad-right { grid-column: 3; grid-row: 2; }

/* ── 提示条 ── */
.snake-msg {
  margin: 12px auto 2px;
  text-align: center;
  font-size: 13px;
  min-height: 1.4em;
  color: var(--secondary, #888888);
}

/* ── 结束弹窗 ── */
.snake-over {
  position: fixed;
  inset: 0;
  z-index: 210;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.45);
}
.snake-over.hidden { display: none; }
.snake-over-box {
  max-width: min(340px, 100%);
  padding: 26px 30px 24px;
  border-radius: 14px;
  text-align: center;
  background: var(--theme, #ffffff);
  border: 1px solid var(--border, #e0e0e0);
  box-shadow: 0 22px 48px -18px rgba(0, 0, 0, 0.5);
  animation: snake-over-in 0.16s ease-out;
}
@keyframes snake-over-in {
  from { transform: scale(0.94); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}
.snake-over-t {
  margin: 0 0 4px;
  font-size: 19px;
  font-weight: 800;
  color: var(--primary, #1f1f1f);
}
.snake-over-s {
  margin: 0 0 16px;
  font-size: 13.5px;
  color: var(--secondary, #888888);
}
.snake-over-btn {
  min-width: 132px;
  padding: 10px 22px;
  border: 0;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  color: #fff;
  background: #1f1f1f;
}
[data-theme="dark"] .snake-over-btn { background: #e8e8e8; color: #1a1a1a; }
.snake-over-btn:hover { filter: brightness(1.18); }

@media (max-width: 520px) {
  #snake-root { padding: 14px 12px 10px; }
  #snake-dpad { grid-template-columns: repeat(3, 64px); }
}
@media (prefers-reduced-motion: reduce) {
  .snake-over-box { animation: none; }
}