/* ==========================================================================
   智能围棋 · 页面样式（与五子棋页面同一设计语言）
   ========================================================================== */

.game-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

.game-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 22px;
  align-items: start;
}

/* ---------- 棋盘区 ---------- */
.board-zone { min-width: 0; }

.status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 18px;
  margin-bottom: 16px;
  font-size: 14.5px;
  min-height: 50px;
  flex-wrap: wrap;
}

.turn-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  flex: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
  transition: background 0.3s;
}

.turn-dot.black { background: radial-gradient(circle at 35% 32%, #5c5c5c, #0c0c0c 70%); }
.turn-dot.white { background: radial-gradient(circle at 35% 32%, #ffffff, #c9c6bd 75%); }

.status-text { color: var(--text); font-weight: 600; }

.cap-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-faint);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 999px;
}

.cap-badge b { color: var(--text); margin-left: 2px; }

.thinking {
  display: none;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}

.thinking.show { display: inline-flex; }

.thinking i {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid rgba(245, 176, 74, 0.25);
  border-top-color: var(--accent);
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.board-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.board-wrap canvas {
  display: block;
  width: 100%;
  cursor: pointer;
  touch-action: manipulation;
}

.board-wrap.busy canvas { cursor: progress; }
.board-wrap.marking canvas { cursor: pointer; }

/* 死子标记操作条 */
.marking-bar {
  display: none;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: rgba(245, 176, 74, 0.09);
  border: 1px solid rgba(245, 176, 74, 0.3);
  border-radius: 14px;
  padding: 13px 18px;
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--text);
}

.marking-bar.show { display: flex; }

.marking-bar span { flex: 1; min-width: 200px; line-height: 1.5; }

.marking-bar .btn { padding: 8px 16px; font-size: 13px; }

/* ---------- 侧栏 ---------- */
.panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 84px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card.grow { flex: 1; }

.card-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 8px;
}

.field .hint { color: var(--text-faint); font-weight: 400; font-size: 12px; }

.field-note {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 8px;
  line-height: 1.5;
}

.segmented {
  display: flex;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
  gap: 4px;
}

.segmented button {
  flex: 1;
  font-family: var(--font);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-faint);
  background: transparent;
  border: none;
  border-radius: 9px;
  padding: 8px 4px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.segmented button:hover { color: var(--text-dim); }

.segmented button.on {
  color: var(--text);
  background: var(--surface-2);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(245, 176, 74, 0.25) inset;
}

.wide { width: 100%; }

.btn-row { display: flex; gap: 10px; }

.btn-row .btn { flex: 1; padding: 10px 8px; font-size: 13px; }

.btn.danger:hover { border-color: rgba(248, 113, 113, 0.5); color: #f87171; background: rgba(248, 113, 113, 0.08); }

/* 比分与记录 */
.score-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-dim);
  padding: 10px;
  background: var(--bg-soft);
  border-radius: 12px;
  margin-bottom: 12px;
}

.score-item { display: inline-flex; align-items: center; gap: 7px; }

.score-item b { font-size: 16px; color: var(--text); }

.score-sep { color: var(--text-faint); }

.dot { display: inline-block; width: 11px; height: 11px; border-radius: 50%; }
.dot.black { background: radial-gradient(circle at 35% 32%, #5c5c5c, #0c0c0c 70%); }
.dot.white { background: radial-gradient(circle at 35% 32%, #fff, #c9c6bd 75%); border: 1px solid rgba(0,0,0,.2); }

.move-list {
  list-style: none;
  max-height: 260px;
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px 10px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  scrollbar-width: thin;
  scrollbar-color: var(--surface-2) transparent;
}

.move-list li {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 4px 8px;
  border-radius: 8px;
  color: var(--text-dim);
}

.move-list li:last-child {
  background: rgba(245, 176, 74, 0.1);
  color: var(--text);
}

.move-list li .no { color: var(--text-faint); min-width: 24px; font-size: 12px; }

.move-list li .pos { font-weight: 600; color: var(--text); }

.move-list li .cap { color: var(--accent); font-size: 11.5px; font-weight: 700; }

.move-list .empty-note {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-faint);
  font-size: 12.5px;
  padding: 18px 0;
}

/* ---------- 弹窗 ---------- */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(6, 8, 12, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.overlay.show { opacity: 1; pointer-events: auto; }

.dialog {
  width: min(440px, calc(100vw - 40px));
  background: linear-gradient(165deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border-strong);
  border-radius: 22px;
  padding: 36px 32px 30px;
  text-align: center;
  box-shadow: 0 40px 90px -20px rgba(0, 0, 0, 0.8);
  transform: translateY(14px) scale(0.96);
  transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.3, 1.2);
}

.overlay.show .dialog { transform: translateY(0) scale(1); }

.dialog-icon { font-size: 52px; line-height: 1; margin-bottom: 14px; }

.dialog h2 { font-size: 24px; font-weight: 800; letter-spacing: -0.01em; }

.dialog > p { color: var(--text-dim); font-size: 14.5px; margin-top: 8px; }

.score-detail {
  margin-top: 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13.5px;
  color: var(--text-dim);
  text-align: left;
}

.score-detail .row {
  display: flex;
  justify-content: space-between;
}

.score-detail .row b { color: var(--text); }

.dialog-btns { display: flex; gap: 12px; margin-top: 26px; justify-content: center; }

.dialog-btns .btn { min-width: 120px; }

.rules-body { text-align: left; margin-top: 14px; display: flex; flex-direction: column; gap: 10px; }

.rules-body p { font-size: 13.5px; color: var(--text-dim); line-height: 1.7; }

.rules-body b { color: var(--text); }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 20px);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 999px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 400;
}

.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .game-layout { grid-template-columns: 1fr; }
  .panel { position: static; }
  .game-shell { padding: 20px 14px 48px; }
  .move-list { max-height: 180px; }
}