/* codex: 2026-09-13 调亮棋盘与单元格色调，增强温暖木质质感与黑白骰子辨识度 */
:root {
    --bg-main: #0c1427;
    --card-bg: #13203f;
    --card-border: #1e3a6c;
    --accent-gold: #f59e0b;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --board-wood: #3a2214;
    --cell-bg: #462c1b;
    --cell-border: #633e26;
    --text-main: #f8fafc;
    --text-sub: #94a3b8;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
    touch-action: manipulation;
}

/* 主容器 */
.game-app {
    width: 100%;
    max-width: 980px;
    padding: 10px 14px 20px 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

/* 顶部通用导航栏 */
.top-nav {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 8px 16px;
    margin-bottom: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.brand-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-title {
    font-size: 18px;
    font-weight: bold;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 6px;
}

.mode-badge {
    font-size: 12px;
    background: var(--accent-gold);
    color: #000;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: bold;
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-icon {
    background: #1e293b;
    border: 1px solid #334155;
    color: #f8fafc;
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-icon:hover {
    background: #334155;
    border-color: #64748b;
}

.btn-icon.active {
    background: #065f46;
    border-color: #10b981;
    color: #ecfdf5;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

/* 游戏舞台区域（上下两名玩家 + 中间棋盘） */
.stage-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: transform 0.2s ease;
}

/* 玩家信息卡片 */
.player-bar {
    width: 100%;
    max-width: 580px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 12px;
    padding: 10px 16px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
    transition: all 0.3s ease;
}

.player-bar.active-turn {
    border-color: var(--accent-gold);
    box-shadow: 0 0 16px rgba(245, 158, 11, 0.45);
    background: #172852;
}

.player-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.die-avatar {
    width: 34px;
    height: 34px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.4);
}

.die-avatar.white {
    background: #f8fafc;
    color: #0f172a;
    border: 1px solid #cbd5e1;
}

.die-avatar.black {
    background: #18181b;
    color: #f8fafc;
    border: 1px solid #52525b;
}

.player-name-wrap {
    display: flex;
    flex-direction: column;
}

.player-title {
    font-size: 15px;
    font-weight: bold;
    color: #ffffff;
}

.player-sub {
    font-size: 12px;
    color: var(--text-sub);
}

/* 棋钟显示卡片 */
.clock-card {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #090e1a;
    border: 1px solid #1e293b;
    border-radius: 8px;
    padding: 6px 14px;
}

.clock-digits {
    font-family: 'Courier New', Courier, monospace;
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 1px;
    color: #38bdf8;
}

.clock-card.low-time {
    border-color: var(--accent-red);
    animation: clockPulse 1s infinite alternate;
}

.clock-card.low-time .clock-digits {
    color: var(--accent-red);
}

@keyframes clockPulse {
    from { box-shadow: 0 0 4px rgba(239, 68, 68, 0.3); }
    to { box-shadow: 0 0 14px rgba(239, 68, 68, 0.9); }
}

/* 黑方 180度 翻转对战模式（手机端两人面对面） */
.player-bar-black.flipped {
    transform: rotate(180deg);
}

/* 棋盘外框 */
.board-wrapper {
    position: relative;
    padding: 12px;
    background: var(--board-wood);
    border: 4px solid #57331e;
    border-radius: 16px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.55), inset 0 2px 6px rgba(255, 255, 255, 0.15);
    touch-action: none;
    transform-origin: 50% 65%;
    transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.35s ease;
}

/* 7x7 棋盘网格 */
.board-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-template-rows: repeat(7, 1fr);
    gap: 6px;
    width: min(85vw, 540px);
    height: min(85vw, 540px);
    background: #24130a;
    padding: 6px;
    border-radius: 10px;
    box-shadow: inset 0 4px 12px rgba(0, 0, 0, 0.75);
}

/* 棋盘单元格（微暖木质高对比明亮风格） */
.cell {
    background: linear-gradient(145deg, #482e1d 0%, #382012 100%);
    border: 1px solid #5f3a23;
    border-radius: 8px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.12), 0 1px 3px rgba(0, 0, 0, 0.4);
    transition: all 0.15s ease;
}

.cell:hover {
    background: linear-gradient(145deg, #543723 0%, #422616 100%);
    border-color: #8c5836;
}

/* 底线特殊标识（金色边界线与微亮底行） */
.cell.black-base {
    background: linear-gradient(145deg, #50321f 0%, #3d2315 100%);
    border-top: 3px solid #f59e0b;
}

.cell.white-base {
    background: linear-gradient(145deg, #50321f 0%, #3d2315 100%);
    border-bottom: 3px solid #f59e0b;
}

/* 移动高亮指示点 */
.cell.highlight-tilt::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.85);
    box-shadow: 0 0 10px #10b981;
    pointer-events: none;
    animation: popIn 0.2s ease;
}

.cell.highlight-jump::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(6, 182, 212, 0.85);
    box-shadow: 0 0 10px #06b6d4;
    pointer-events: none;
    animation: popIn 0.2s ease;
}

.cell.highlight-tilt-jump::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.85);
    box-shadow: 0 0 10px #f59e0b;
    pointer-events: none;
    animation: popIn 0.2s ease;
}

@keyframes popIn {
    from { transform: scale(0); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* 3D 骰子与棋盘立体化样式详见 dittle_components.css */

/* 底部状态栏与快捷说明 */
.bottom-bar {
    width: 100%;
    max-width: 580px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 8px 14px;
    margin-top: 6px;
    font-size: 13px;
}

.move-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-group {
    display: flex;
    gap: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--text-sub);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

/* 移动端与小屏媒体查询 */
@media (max-width: 600px) {
    .game-app { padding: 6px 8px 16px 8px; }
    .top-nav { padding: 6px 10px; }
    .brand-title { font-size: 16px; }
    .player-bar { padding: 8px 12px; }
    .clock-digits { font-size: 20px; }
    .legend-group { display: none; }
}