/* =============================================================
 * 共用游戏外壳样式 —— 所有游戏引用，保证 UI 一致
 * 纯 CSS，无外部字体/图标依赖
 * ============================================================= */

:root {
  --felt: #1f6b4a;
  --felt-dark: #17553a;
  --ink: #1e2420;
  --muted: #6b7a70;
  --card: #ffffff;
  --line: #e3e8e4;
  --accent: #e07a3c;
  --accent-dark: #c8622a;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(20, 40, 30, .12);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: #f5f7f5;
  color: var(--ink);
  font-family: var(--font);
  -webkit-text-size-adjust: 100%;
}

.game {
  max-width: 1000px;
  margin: 0 auto;
  padding: 14px;
}

/* ---------- 顶部 ---------- */
.g-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.g-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .2px;
  margin: 0;
  flex: 1 1 200px;
}

.g-hud {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.g-chip {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  box-shadow: var(--shadow);
  white-space: nowrap;
}

.g-chip b { font-weight: 700; }

/* ---------- 按钮 ---------- */
.g-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.g-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform .08s ease, background .15s ease;
}

.g-btn:hover { background: #f0f4f1; }
.g-btn:active { transform: translateY(1px); }

.g-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.g-btn.primary:hover { background: var(--accent-dark); }

.g-btn:disabled {
  opacity: .5;
  cursor: default;
}

/* ---------- 棋盘 ---------- */
.g-board-wrap {
  background: linear-gradient(160deg, var(--felt), var(--felt-dark));
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08), var(--shadow);
  overflow: hidden;
}

.g-board {
  position: relative;
  margin: 0 auto;
}

/* ---------- 牌 ---------- */
.mt {
  display: block;
  width: 100%;
  height: 100%;
  pointer-events: none;
  user-select: none;
}

.g-cell {
  position: absolute;
  padding: 1px;
  cursor: default;
}

.g-tile {
  position: absolute;
  padding: 1px;
  cursor: pointer;
  transition: transform .1s ease, filter .1s ease;
}

.g-tile:hover { filter: brightness(1.06); }
.g-tile:active { transform: translateY(1px); }

.g-tile.sel::after {
  content: '';
  position: absolute;
  inset: 1px;
  border: 2.5px solid var(--accent);
  border-radius: 8px;
  pointer-events: none;
}

.g-tile.hint::after {
  content: '';
  position: absolute;
  inset: 1px;
  border: 2.5px solid #ffd45e;
  border-radius: 8px;
  animation: pulse 1s ease-in-out infinite;
  pointer-events: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

.g-tile.gone {
  opacity: 0;
  transform: scale(.85);
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease;
}

/* ---------- 连线（连连看） ---------- */
.g-path {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 50;
}

.g-path polyline {
  fill: none;
  stroke: #ffd45e;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 6px rgba(255, 212, 94, .9));
}

/* ---------- 遮罩 ---------- */
.g-overlay {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 14px;
  background: rgba(12, 30, 22, .82);
  border-radius: var(--radius);
  color: #fff;
  z-index: 100;
  text-align: center;
  padding: 20px;
}

.g-overlay.show { display: flex; }

.g-overlay h2 {
  margin: 0;
  font-size: 26px;
}

.g-overlay p {
  margin: 0;
  font-size: 14px;
  opacity: .9;
}

/* ---------- 说明区 ---------- */
.g-note {
  margin-top: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: #3c4a41;
}

.g-note h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.g-note ul {
  margin: 6px 0 0;
  padding-left: 20px;
}

@media (max-width: 560px) {
  .g-title { font-size: 17px; }
  .g-btn { padding: 7px 11px; font-size: 13px; }
  .g-chip { padding: 4px 10px; font-size: 12px; }
}