/* 首页样式 - 阵营选择 */
.faction-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

.faction-card {
    background: var(--bg-surface);
    border: 2px solid var(--border-light);
    border-radius: 12px;
    padding: 36px 28px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.faction-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

/* 盟军卡片 */
.faction-card[data-faction="allied"] {
    border-color: var(--allied-light);
    background: var(--allied-bg);
}

.faction-card[data-faction="allied"]:hover {
    border-color: var(--allied-primary);
}

/* 苏军卡片 */
.faction-card[data-faction="soviet"] {
    border-color: var(--soviet-light);
    background: var(--soviet-bg);
}

.faction-card[data-faction="soviet"]:hover {
    border-color: var(--soviet-primary);
}

/* 尤里卡片 */
.faction-card[data-faction="yuri"] {
    border-color: var(--yuri-light);
    background: var(--yuri-bg);
}

.faction-card[data-faction="yuri"]:hover {
    border-color: var(--yuri-primary);
}

.faction-icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.faction-icon img {
    display: block;
    width: 100%;
    max-width: 260px;
    height: auto;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.10);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.faction-card:hover .faction-icon img {
    transform: scale(1.03);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

.faction-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.faction-card[data-faction="allied"] .faction-name {
    color: var(--allied-dark);
}

.faction-card[data-faction="soviet"] .faction-name {
    color: var(--soviet-dark);
}

.faction-card[data-faction="yuri"] .faction-name {
    color: var(--yuri-dark);
}

.faction-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.faction-motto {
    font-size: 13px;
    color: var(--text-tertiary);
    font-style: italic;
    margin-bottom: 20px;
}

.faction-count {
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: space-around;
}

.count-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.count-label {
    font-size: 12px;
    color: var(--text-tertiary);
}

.count-value {
    font-size: 24px;
    font-weight: 700;
}

.faction-card[data-faction="allied"] .count-value {
    color: var(--allied-primary);
}

.faction-card[data-faction="soviet"] .count-value {
    color: var(--soviet-primary);
}

.faction-card[data-faction="yuri"] .count-value {
    color: var(--yuri-primary);
}

.faction-countries {
    margin-top: 16px;
}

/* 单位类型分布 */
.faction-distribution {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.category-bar {
    display: flex;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    background: var(--bg-hover);
    margin-bottom: 10px;
}

.category-segment {
    transition: width 0.6s ease;
}

.category-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

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

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* 动画 */
@keyframes faction-enter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.faction-card {
    animation: faction-enter 0.5s ease forwards;
    opacity: 0;
}

.faction-card:nth-child(1) { animation-delay: 0.1s; }
.faction-card:nth-child(2) { animation-delay: 0.2s; }
.faction-card:nth-child(3) { animation-delay: 0.3s; }

/* 响应式 */
@media (max-width: 900px) {
    .faction-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }

    .faction-card {
        padding: 28px 24px;
    }

    .faction-icon img {
        max-width: 200px;
    }

    .faction-name {
        font-size: 20px;
    }
}