/* 赛博朋克风格五子棋游戏样式 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #1a0a2e;
    --color-cyan: #00ffff;
    --color-magenta: #ff00ff;
    --color-board: #1a1a2e;
    --color-text: #ffffff;
    --color-text-dim: #8888aa;
    --glow-cyan: 0 0 10px rgba(0, 255, 255, 0.5), 0 0 20px rgba(0, 255, 255, 0.3);
    --glow-magenta: 0 0 10px rgba(255, 0, 255, 0.5), 0 0 20px rgba(255, 0, 255, 0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    min-height: 100vh;
    color: var(--color-text);
    overflow-x: hidden;
}

.game-container {
    max-width: 700px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 标题 */
.game-header {
    text-align: center;
    margin-bottom: 20px;
}

.game-header h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: var(--glow-cyan);
    letter-spacing: 3px;
}

/* 控制区 */
.control-panel {
    width: 100%;
    background: rgba(26, 26, 46, 0.8);
    border: 1px solid var(--color-cyan);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
}

.mode-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.mode-btn {
    flex: 1;
    padding: 12px 20px;
    font-size: 1rem;
    font-weight: bold;
    border: 2px solid var(--color-cyan);
    background: transparent;
    color: var(--color-cyan);
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 5px;
}

.mode-btn:hover {
    background: rgba(0, 255, 255, 0.2);
    box-shadow: var(--glow-cyan);
}

.mode-btn.active {
    background: var(--color-cyan);
    color: var(--color-board);
    box-shadow: var(--glow-cyan);
}

/* 等级显示 */
.level-display {
    display: none;
    margin-bottom: 15px;
}

.level-display.show {
    display: block;
}

.level-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.level-badge {
    background: linear-gradient(90deg, var(--color-cyan), var(--color-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
    font-size: 1.1rem;
}

.level-progress {
    color: var(--color-text-dim);
}

.level-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.level-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-magenta));
    border-radius: 4px;
    transition: width 0.5s ease;
    box-shadow: var(--glow-cyan);
}

/* 状态显示 */
.status-display {
    display: flex;
    justify-content: space-around;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.status-item {
    font-size: 0.9rem;
    color: var(--color-text-dim);
}

.status-item strong {
    color: var(--color-cyan);
    font-size: 1.1rem;
}

/* 游戏区 */
.game-area {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}

#game-canvas {
    border: 2px solid var(--color-cyan);
    border-radius: 5px;
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3), inset 0 0 50px rgba(0, 0, 0, 0.5);
    cursor: pointer;
    touch-action: none;
}

.game-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(10, 10, 15, 0.95);
    border: 2px solid var(--color-magenta);
    padding: 30px 50px;
    border-radius: 15px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-magenta);
    box-shadow: 0 0 30px rgba(255, 0, 255, 0.5);
    z-index: 10;
    display: none;
}

.game-message.show {
    display: block;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.05); }
}

/* 操作区 */
.action-panel {
    display: flex;
    gap: 15px;
    width: 100%;
    justify-content: center;
}

.action-btn {
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: bold;
    border: 2px solid var(--color-magenta);
    background: transparent;
    color: var(--color-magenta);
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 8px;
    min-width: 150px;
}

.action-btn:hover {
    background: rgba(255, 0, 255, 0.2);
    box-shadow: var(--glow-magenta);
    transform: translateY(-2px);
}

.action-btn.primary {
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}

.action-btn.primary:hover {
    background: rgba(0, 255, 255, 0.2);
    box-shadow: var(--glow-cyan);
}

.action-btn:active {
    transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 650px) {
    .game-container {
        padding: 10px;
    }

    .game-header h1 {
        font-size: 1.8rem;
    }

    .control-panel {
        padding: 10px;
    }

    .mode-btn {
        padding: 10px 15px;
        font-size: 0.9rem;
    }

    .status-display {
        flex-wrap: wrap;
        gap: 5px;
    }

    .status-item {
        font-size: 0.8rem;
    }

    .action-panel {
        flex-direction: column;
        gap: 10px;
    }

    .action-btn {
        width: 100%;
        max-width: 300px;
        padding: 12px 30px;
    }
}

@media (max-width: 400px) {
    .game-header h1 {
        font-size: 1.5rem;
    }

    .mode-selector {
        flex-direction: column;
    }

    .mode-btn {
        width: 100%;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .action-btn {
        padding: 18px 40px;
        font-size: 1.2rem;
    }

    .mode-btn {
        padding: 15px 20px;
    }
}

/* 动画效果 */
@keyframes glow {
    0%, 100% { box-shadow: 0 0 10px rgba(0, 255, 255, 0.5); }
    50% { box-shadow: 0 0 20px rgba(0, 255, 255, 0.8); }
}

#game-canvas:hover {
    animation: glow 2s ease-in-out infinite;
}

/* 最后落子标记 */
.last-move-marker {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--color-magenta);
    border-radius: 50%;
    box-shadow: var(--glow-magenta);
    pointer-events: none;
}

/* 获胜连线高亮 */
.win-highlight {
    stroke: var(--color-magenta);
    stroke-width: 4;
    stroke-linecap: round;
    filter: drop-shadow(0 0 10px var(--color-magenta));
}