/**
 * 文章天梯排榜样式（Liuge Ladder · xdgame 风格）
 *
 * 设计原则：
 *   1. 颜色/表面/文字全部引用主题 CSS 变量（--ri-*），亮/暗主题自动适配
 *   2. 样式作用域收敛在 .liuge-ladder，不污染全局
 *   3. 移动优先响应式，断点与主题 Bootstrap 体系对齐
 *
 * @package liuge\assets
 */

.liuge-ladder {
    --ladder-rank-gold: #f5a623;
    --ladder-rank-silver: #98a1ae;
    --ladder-rank-bronze: #c8703c;
    --ladder-flag-new: #00a854;
    --ladder-flag-hot: #f0653a;
    background: var(--ri-secondary-bg, #f0f1f3);
    border: 1px solid var(--ri-border-color, rgba(0, 0, 0, 0.1));
    border-radius: 14px;
    overflow: hidden;
}

/* ---------- 头部 ---------- */

.ladder-head {
    padding: 26px 24px 18px;
    text-align: center;
    background:
        radial-gradient(120% 140% at 50% -20%,
            rgba(33, 99, 232, 0.12) 0%,
            transparent 55%);
}

.ladder-head-title {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--ri-emphasis-color, #000);
    letter-spacing: 2px;
}

.ladder-head-desc {
    margin: 8px 0 0;
    font-size: 13px;
    color: var(--ri-body-color, #595d69);
}

/* ---------- 筛选 Tab ---------- */

.ladder-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    padding: 4px 16px 16px;
}

.ladder-filter-btn {
    appearance: none;
    border: 1px solid var(--ri-border-color, rgba(0, 0, 0, 0.1));
    background: var(--ri-secondary-bg, #f0f1f3);
    color: var(--ri-body-color, #595d69);
    font-size: 13px;
    line-height: 1;
    padding: 8px 14px;
    border-radius: 999px;
    cursor: pointer;
    transition: color .18s ease, background-color .18s ease, border-color .18s ease;
}

.ladder-filter-btn:hover {
    color: var(--ri-primary, #2163e8);
    border-color: var(--ri-primary, #2163e8);
}

.ladder-filter-btn.is-active {
    background: var(--ri-primary, #2163e8);
    border-color: var(--ri-primary, #2163e8);
    color: #fff;
}

/* ---------- 榜单面板 ---------- */

.ladder-panels {
    border-top: 1px solid var(--ri-border-color, rgba(0, 0, 0, 0.1));
    background: #fff;
}

[data-bs-theme="dark"] .ladder-panels {
    background: var(--ri-secondary-bg, #191a1f);
}

.ladder-panel[hidden] {
    display: none;
}

.ladder-empty {
    margin: 0;
    padding: 40px 16px;
    text-align: center;
    font-size: 13px;
    color: var(--ri-body-color, #595d69);
}

.ladder-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.ladder-item + .ladder-item .ladder-item-link {
    border-top: 1px solid var(--ri-border-color, rgba(0, 0, 0, 0.06));
}

.ladder-item-link {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    padding: 12px 20px;
    text-decoration: none;
    transition: background-color .15s ease;
}

.ladder-item-link:hover {
    background: rgba(33, 99, 232, 0.05);
    text-decoration: none;
}

[data-bs-theme="dark"] .ladder-item-link:hover {
    background: rgba(255, 255, 255, 0.04);
}

/* 名次 */

.ladder-rank {
    flex: 0 0 auto;
    width: 24px;
    font-size: 14px;
    font-weight: 700;
    font-style: italic;
    text-align: center;
    color: var(--ri-body-color, #595d69);
    opacity: .55;
    font-variant-numeric: tabular-nums;
}

.ladder-rank-1 { color: var(--ladder-rank-gold); opacity: 1; }
.ladder-rank-2 { color: var(--ladder-rank-silver); opacity: 1; }
.ladder-rank-3 { color: var(--ladder-rank-bronze); opacity: 1; }

/* 圆形封面图（很小，强化游戏识别） */

.ladder-cover {
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--ri-secondary-bg, #f0f1f3);
    border: 1px solid var(--ri-border-color, rgba(0, 0, 0, 0.1));
    transition: transform .18s ease, box-shadow .18s ease;
}

.ladder-item-link:hover .ladder-cover {
    transform: scale(1.08);
    box-shadow: 0 2px 10px rgba(33, 99, 232, 0.25);
}

/* 分类（图标 + 文字） */

.ladder-cat {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    flex: 0 0 auto;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

/* 分类图标：内联 SVG，currentColor 继承分类色，矢量任意尺寸清晰 */
.ladder-cat-icon {
    width: 15px;
    height: 15px;
    flex: 0 0 auto;
}

/* 无分类时的默认图标：弱化处理，不抢标题视觉 */
.ladder-cat-default {
    color: var(--ri-body-color, #595d69);
    opacity: .55;
}

.ladder-cat-c0 { color: #2163e8; }
.ladder-cat-c1 { color: #f0653a; }
.ladder-cat-c2 { color: #00a854; }
.ladder-cat-c3 { color: #9b59f5; }
.ladder-cat-c4 { color: #17a2b8; }
.ladder-cat-c5 { color: #e63757; }

/* 新/热 徽标 */

.ladder-flag {
    flex: 0 0 auto;
    font-size: 11px;
    line-height: 1;
    font-weight: 600;
    padding: 3px 6px;
    border-radius: 5px;
    color: #fff;
}

.ladder-flag-new { background: var(--ladder-flag-new); }
.ladder-flag-hot { background: var(--ladder-flag-hot); }

/* 标题 */

.ladder-name {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--ri-emphasis-color, #000);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ladder-item-link:hover .ladder-name {
    color: var(--ri-primary, #2163e8);
}

/* 右侧指标 */

.ladder-val {
    flex: 0 0 auto;
    font-size: 12px;
    color: var(--ri-body-color, #595d69);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

/* ---------- 分页 ---------- */

.ladder-pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 14px 16px;
    border-top: 1px solid var(--ri-border-color, rgba(0, 0, 0, 0.06));
}

.ladder-pager-btn {
    appearance: none;
    border: 1px solid var(--ri-border-color, rgba(0, 0, 0, 0.1));
    background: var(--ri-secondary-bg, #f0f1f3);
    color: var(--ri-body-color, #595d69);
    font-size: 13px;
    line-height: 1;
    padding: 8px 16px;
    border-radius: 999px;
    cursor: pointer;
    transition: color .18s ease, border-color .18s ease, opacity .18s ease;
}

.ladder-pager-btn:hover:not(:disabled) {
    color: var(--ri-primary, #2163e8);
    border-color: var(--ri-primary, #2163e8);
}

.ladder-pager-btn:disabled {
    opacity: .45;
    cursor: not-allowed;
}

.ladder-pager-btn.is-loading {
    opacity: .6;
}

.ladder-pager-info {
    font-size: 13px;
    color: var(--ri-body-color, #595d69);
}

.ladder-pager-info b {
    color: var(--ri-primary, #2163e8);
    font-weight: 600;
}

/* ---------- 响应式 ---------- */

@media (max-width: 767px) {
    .ladder-head {
        padding: 20px 14px 14px;
    }

    .ladder-head-title {
        font-size: 20px;
    }

    .ladder-filter {
        padding: 2px 12px 12px;
        gap: 6px;
    }

    .ladder-filter-btn {
        padding: 7px 11px;
        font-size: 12px;
    }

    .ladder-item-link {
        padding: 11px 14px;
        gap: 8px;
    }

    .ladder-cat-text {
        display: none;
    }

    .ladder-cat-icon {
        width: 14px;
        height: 14px;
    }

    .ladder-cover {
        width: 26px;
        height: 26px;
    }
}

@media (max-width: 400px) {
    .ladder-name {
        font-size: 13px;
    }

    .ladder-val {
        font-size: 11px;
    }
}