/* codex: 2026-09-23 星阵画布视口、棋盘HUD指标、剩余正三角形排查雷达与卡片样式 */
.board-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.level-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--shadow-sm);
}

.level-info-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.level-info-header h2 {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
}

.status-badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.status-badge.ongoing {
  background: rgba(56, 189, 248, 0.15);
  color: var(--primary);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.status-badge.success {
  background: rgba(34, 197, 94, 0.18);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.status-badge.optimal {
  background: rgba(253, 224, 71, 0.2);
  color: var(--accent-gold);
  border: 1px solid rgba(253, 224, 71, 0.5);
  box-shadow: 0 0 12px rgba(253, 224, 71, 0.3);
}

.level-info-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 画布主卡片与HUD指标 */
.canvas-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.hud-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.hud-item {
  background: rgba(10, 14, 26, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.hud-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
}

.hud-val {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
}

.hud-val.highlight {
  color: var(--accent-gold);
}

.hud-val.danger {
  color: #f87171;
}

.canvas-wrapper {
  width: 100%;
  height: 440px;
  background: radial-gradient(circle at 50% 50%, rgba(30, 41, 70, 0.5) 0%, rgba(10, 14, 26, 0.9) 100%);
  border-radius: var(--radius-md);
  border: 1px solid rgba(56, 189, 248, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.6);
}

#triangleCanvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

/* 画布说明提示条（独立排版，绝不遮挡底部坐标文字） */
.canvas-hint-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  text-align: center;
  line-height: 1.4;
}

/* 控制按钮栏 */
.board-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.board-actions .btn {
  flex: 1;
  min-width: 110px;
}

/* 右侧排查雷达面板 */
.inspector-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: calc(100vh - 120px);
  position: sticky;
  top: 80px;
  box-shadow: var(--shadow-md);
}

.inspector-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 10px;
}

.inspector-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 逐个排查导航条 */
.inspector-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: rgba(10, 14, 26, 0.5);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.inspector-nav span {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.inspector-nav-btns {
  display: flex;
  gap: 4px;
}

/* 剩余三角形列表卡片 */
.remaining-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 4px;
}

.remaining-list::-webkit-scrollbar {
  width: 5px;
}
.remaining-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

.tri-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.tri-card:hover {
  background: rgba(30, 41, 65, 0.85);
  border-color: var(--primary);
  transform: translateX(-2px);
}

.tri-card.focused {
  background: rgba(234, 179, 8, 0.15);
  border-color: var(--accent-gold);
  box-shadow: 0 0 12px rgba(234, 179, 8, 0.25);
}

.tri-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tri-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
}

.tri-idx {
  font-size: 11px;
  color: var(--text-dim);
}

.tri-coords {
  font-size: 12px;
  color: var(--text-muted);
  font-family: monospace;
}

.empty-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 8px;
  padding: 40px 16px;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 38px;
}

/* 嵌入式答案演示控制面板（半透明毛玻璃，直接停靠在棋盘上方，完全不遮挡棋盘） */
.demo-dock-panel {
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5), 0 0 15px rgba(56, 189, 248, 0.2);
  animation: slideDown 0.25s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.demo-dock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.demo-dock-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 13.5px;
  color: #ffffff;
}

.demo-dock-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.demo-btn-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.demo-btn-row .btn {
  flex: 1;
  min-width: 75px;
}

/* 教学棋盘检视浮动横幅 */
.teach-dock-banner {
  background: rgba(14, 165, 233, 0.22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(56, 189, 248, 0.45);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  animation: slideDown 0.2s ease;
}

.teach-dock-content {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #ffffff;
  font-weight: 500;
}

.teach-dock-actions {
  display: flex;
  gap: 6px;
}


/* 移动端与平板响应式适配 */
@media (max-width: 1024px) {
  .inspector-panel {
    position: static;
    height: auto;
    max-height: none;
    top: auto;
  }
  .remaining-list {
    max-height: 280px;
  }
}

@media (max-width: 640px) {
  .canvas-wrapper {
    height: clamp(280px, 75vw, 330px);
  }
  .canvas-card {
    padding: 10px;
    gap: 10px;
  }
  .hud-bar {
    gap: 6px;
  }
  .hud-item {
    padding: 6px 4px;
  }
  .hud-label {
    font-size: 10px;
    letter-spacing: 0;
  }
  .hud-val {
    font-size: 16px;
  }
  .board-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .board-actions .btn {
    min-width: 0;
    padding: 9px 6px;
    font-size: 12px;
  }
  .board-actions #btnBookmark {
    grid-column: span 2;
  }
  .level-info-card {
    padding: 10px 12px;
  }
  .level-info-header h2 {
    font-size: 15px;
  }
}