/**
 * A*寻路算法可视化样式
 * @author changyadai
 */

.container {
    max-width: 800px;
    padding: 25px;
}

.nav-link {
    position: absolute;
    top: 25px;
    left: 25px;
}

/* 图例 */
.legend {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 15px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.cell-demo {
    width: 18px;
    height: 18px;
    border-radius: 3px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cell-demo.start { background: #22c55e; }
.cell-demo.end { background: #ef4444; }
.cell-demo.wall { background: #374151; }
.cell-demo.open { background: rgba(168, 85, 247, 0.5); }
.cell-demo.closed { background: rgba(6, 182, 212, 0.4); }
.cell-demo.path { background: #fbbf24; }

/* 网格 */
.grid-container {
    display: flex;
    justify-content: center;
    margin-bottom: 10px;
    overflow-x: auto;
    max-width: 100%;
}

.grid {
    display: grid;
    gap: 2px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.cell {
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
    position: relative;
}

.cell:hover {
    background: rgba(255, 255, 255, 0.15);
}

.cell.start {
    background: #22c55e;
    cursor: default;
}

.cell.end {
    background: #ef4444;
    cursor: default;
}

.cell.wall {
    background: #374151;
    border: 1px solid #4b5563;
}

.cell.open {
    background: rgba(168, 85, 247, 0.5);
    border: 1px solid #a855f7;
    animation: openPulse 0.3s ease-out;
}

@keyframes openPulse {
    from { transform: scale(0.8); opacity: 0.5; }
    to { transform: scale(1); opacity: 1; }
}

.cell.closed {
    background: rgba(6, 182, 212, 0.4);
    border: 1px solid rgba(6, 182, 212, 0.6);
}

.cell.current {
    background: #fbbf24;
    box-shadow: 0 0 10px rgba(251, 191, 36, 0.6);
    z-index: 10;
}

.cell.path {
    background: #fbbf24;
    animation: pathGlow 0.3s ease-out;
}

@keyframes pathGlow {
    from { 
        transform: scale(0.8);
        box-shadow: 0 0 20px rgba(251, 191, 36, 0.8);
    }
    to { 
        transform: scale(1);
        box-shadow: none;
    }
}

/* F值显示 */
.cell .f-value {
    position: absolute;
    bottom: 1px;
    right: 2px;
    font-size: 8px;
    color: rgba(255, 255, 255, 0.6);
}

/* 提示 */
.hint {
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 15px;
}