/* 排行榜专用样式 */

/* 排行榜页面样式 */
.rankings-page {
    display: none; /* 默认隐藏 */
}

.rankings-page.active {
    display: block; /* 激活时显示 */
}

.rankings-container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 1rem 0;
}


/* 排行榜头部：包含标签和年份筛选器 */
.rankings-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.rankings-tabs {
    display: flex;
    justify-content: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
    flex: 1;
}

.tab-button {
    padding: 0.75rem 1.5rem;
    background: rgba(26, 31, 54, 0.6);
    border: 2px solid rgba(90, 122, 138, 0.3);
    border-radius: 8px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-size: inherit;
    font-family: inherit;
}

.tab-button:hover {
    border-color: rgba(90, 122, 138, 0.6);
    background: rgba(26, 31, 54, 0.8);
    transform: translateY(-2px);
}

.tab-button.active {
    background: linear-gradient(135deg, #5a7a8a, #8b7aa3);
    border-color: #5a7a8a;
    color: white;
}

.rankings-content {
    background: rgba(26, 31, 54, 0.6);
    border-radius: 8px;
    padding: 2rem;
    border: 1px solid rgba(90, 122, 138, 0.2);
    backdrop-filter: blur(3px);
}

/* 年份筛选器样式 - 新布局 */
.year-filter-container {
    display: flex;
    justify-content: flex-end;
    flex-shrink: 0;
    margin: 0;
    padding: 0;
}

.year-filter {
    display: flex;
    align-items: center;
    background: rgba(26, 31, 54, 0.6);
    border: 2px solid rgba(90, 122, 138, 0.3);
    border-radius: 8px;
    padding: 0.75rem 1rem; /* 减少padding，因为没有label了 */
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    white-space: nowrap;
    height: auto;
    box-sizing: border-box;
}

.year-filter:hover {
    border-color: rgba(90, 122, 138, 0.6);
    background: rgba(26, 31, 54, 0.8);
}


.year-select {
    background: transparent; /* 透明背景，与容器融为一体 */
    border: none; /* 移除边框 */
    border-radius: 0;
    color: var(--text-color);
    padding: 0;
    font-size: inherit; /* 继承父元素字体大小 */
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
    min-width: 120px;
    height: auto;
    line-height: 1.2;
    box-sizing: border-box;
    font-weight: 500; /* 保持与tab-button一致的字体粗细 */
}

.year-select:hover,
.year-select:focus {
    color: white; /* hover时字体颜色更亮 */
}

.year-select option {
    background: rgba(15, 20, 35, 1);
    color: var(--text-color);
    padding: 0.5rem;
}

/* 移动设备适配 - 年份筛选器 */
@media (max-width: 1024px) {
    .rankings-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1.5rem;
    }
    
    .rankings-tabs {
        justify-content: center;
    }
    
    .year-filter-container {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .rankings-container {
        padding: 0.5rem;
    }
    
    .rankings-header {
        margin: 1.5rem 0;
        gap: 1rem;
    }
    
    .rankings-tabs {
        gap: 0.5rem;
    }
    
    .tab-button {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .year-filter {
        display: flex;
        justify-content: center;
        align-items: center;
        padding: 0.5rem 1rem; /* 与移动端tab-button保持一致 */
        height: auto;
        box-sizing: border-box;
        font-size: 0.9rem; /* 与移动端tab-button字体大小一致 */
    }
    
    .year-select {
        min-width: 120px;
        font-size: 0.9rem; /* 移动端字体大小 */
        text-align: center; /* 移动端居中显示 */
    }
    
    .rankings-table {
        font-size: 0.9rem;
    }
    
    .rankings-table th,
    .rankings-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-card .stat-value {
        font-size: 1.5rem;
    }
}

.rankings-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(90, 122, 138, 0.1);
    border: 1px solid rgba(90, 122, 138, 0.2);
    border-radius: 6px;
    padding: 1.5rem;
    text-align: center;
}

.stat-card i {
    font-size: 2rem;
    color: #8b7aa3;
    margin-bottom: 0.5rem;
}

.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #5a7a8a;
    margin-bottom: 0.25rem;
}

.stat-card .stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 排行榜表格标题 */
.rankings-table-header {
    margin: 1.5rem 0 1rem 0;
    text-align: center;
}

.rankings-table-header h3 {
    color: var(--text-color);
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.rankings-table-header h3 i {
    color: #f39c12;
    font-size: 1.2rem;
}

.rankings-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.rankings-table thead {
    background: rgba(90, 122, 138, 0.2);
}

.rankings-table th,
.rankings-table td {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid rgba(90, 122, 138, 0.1);
}

.rankings-table th:nth-child(2),
.rankings-table td:nth-child(2) {
    text-align: left;
    padding-left: 2rem;
}

.rankings-table th:nth-child(3),
.rankings-table td:nth-child(3),
.rankings-table th:nth-child(4),
.rankings-table td:nth-child(4) {
    text-align: center;
}

.rankings-table th {
    color: #5a7a8a;
    font-weight: 600;
    position: sticky;
    top: 0;
    background: rgba(90, 122, 138, 0.2);
}

.rankings-table tr:hover {
    background: rgba(90, 122, 138, 0.1);
}

.rank-position {
    font-weight: 700;
    font-size: 1.1rem;
}

.rank-position.rank-1 { color: #ffd700; }
.rank-position.rank-2 { color: #c0c0c0; }
.rank-position.rank-3 { color: #cd7f32; }

.rank-medal {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.rank-medal i {
    font-size: 1.2rem;
}

.rank-medal.rank-1 i { color: #ffd700; }
.rank-medal.rank-2 i { color: #c0c0c0; }
.rank-medal.rank-3 i { color: #cd7f32; }


.user-name {
    font-weight: 600;
    color: var(--text-color);
}

.points-display {
    font-weight: 700;
    color: #ff6b35;
}

.solved-count {
    color: #28a745;
    font-weight: 600;
}

.loading-container {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading-container i {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: spin 1s linear infinite;
}

.empty-rankings {
    text-align: center;
    padding: 2rem;
    color: #999;
}

.empty-rankings i {
    font-size: 2.5rem;
    color: #bbb;
    margin-bottom: 1rem;
}

.empty-rankings p {
    font-size: 0.95rem;
    margin: 0;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.pagination-btn {
    padding: 0.5rem 1rem;
    background: rgba(90, 122, 138, 0.2);
    border: 1px solid rgba(90, 122, 138, 0.3);
    border-radius: 4px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    font-size: inherit;
}

.pagination-btn:hover:not(:disabled) {
    background: rgba(90, 122, 138, 0.4);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-btn.active {
    background: #5a7a8a;
    color: white;
}

.pagination-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.pagination-ellipsis {
    color: var(--text-secondary);
    padding: 0 0.5rem;
}


@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}