/* resources/css/modules/library-course.css
   课程栏目专属样式。
   视觉语言沿用 --wp-* 暖金 token，与 anthology / library-index 一致。
*/

/* ══════════════════════════════════════════
   〇、区块通用结构（课程页独立声明，不依赖 library-index.css）
   ══════════════════════════════════════════ */

.lib-section {
    margin-top: 3rem;
    margin-bottom: 0.5rem;
}

.lib-section__header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--wp-border);
}

.lib-section__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--wp-ink);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.lib-section__title .ti {
    font-size: 1.125rem;
    color: var(--wp-brand);
}

.lib-section__more {
    font-size: 0.8125rem;
    color: var(--wp-brand);
    text-decoration: none;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
}

.lib-section__more:hover {
    text-decoration: underline;
}

/* ══════════════════════════════════════════
   一、统计条
   ══════════════════════════════════════════ */

.course-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.course-stat {
    background: var(--wp-card-bg);
    border: 1px solid var(--wp-border);
    border-radius: 10px;
    padding: 1.25rem 1rem;
    text-align: center;
}

.course-stat__value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--wp-brand);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}

.course-stat__label {
    font-size: 0.75rem;
    color: var(--wp-ink-muted);
    margin-top: 0.375rem;
}

/* ══════════════════════════════════════════
   二、最新课程卡片网格
   ══════════════════════════════════════════ */

.course-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.course-card {
    display: flex;
    flex-direction: column;
    background: var(--wp-card-bg);
    border: 1px solid var(--wp-border);
    border-radius: 10px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition:
        box-shadow 0.2s,
        transform 0.2s;
    height: 100%;
}

.course-card:hover {
    box-shadow:
        0 8px 24px rgba(200, 134, 10, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
    color: inherit;
    text-decoration: none;
}

.course-card__cover {
    position: relative;
    aspect-ratio: 16 / 10;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.course-card__cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.course-card__cover-fallback {
    color: rgba(255, 255, 255, 0.92);
    font-family: 'Noto Serif SC', 'Noto Serif', Georgia, serif;
    font-size: 1.05rem;
    font-weight: 600;
    padding: 0 1rem;
    text-align: center;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-card__body {
    padding: 1rem 1.1rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.course-card__title {
    font-family: 'Noto Serif SC', 'Noto Serif', Georgia, serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--wp-ink);
    line-height: 1.4;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
}

.course-card:hover .course-card__title {
    color: var(--wp-brand);
}

.course-card__teacher {
    min-height: 1.5rem;
}

.course-card__foot {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--wp-ink-muted);
    margin-top: auto;
    font-variant-numeric: tabular-nums;
}

/* ══════════════════════════════════════════
   三、状态徽章
   ══════════════════════════════════════════ */

.course-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.6875rem;
    font-weight: 600;
    line-height: 1;
    padding: 4px 9px;
    border-radius: 20px;
    white-space: nowrap;
}

.course-badge--open {
    background: #eaf3de;
    color: #3b6d11;
    border: 1px solid #c0dd97;
}

.course-badge--closed {
    background: #f1efe8;
    color: #6b6a64;
    border: 1px solid #d8d6cc;
}

.course-card__cover .course-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* ══════════════════════════════════════════
   四、横向列表行（开放报名 / 历史课程）
   ══════════════════════════════════════════ */

.course-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

/* 桌面端改为两列，避免横向卡片过宽、中间留白 */
@media (min-width: 992px) {
    .course-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.course-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--wp-card-bg);
    border: 1px solid var(--wp-border);
    border-radius: 10px;
    padding: 0.85rem 1.1rem;
    text-decoration: none;
    color: inherit;
    transition:
        box-shadow 0.2s,
        transform 0.2s,
        border-color 0.2s;
}

.course-row:hover {
    box-shadow: 0 6px 20px rgba(200, 134, 10, 0.1);
    transform: translateY(-1px);
    border-color: var(--wp-brand-light);
    color: inherit;
    text-decoration: none;
}

.course-row__thumb {
    width: 112px;
    height: 72px;
    flex-shrink: 0;
    border-radius: 6px;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.course-row__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.course-row__thumb span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0 0.5rem;
    text-align: center;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-row__main {
    flex: 1;
    min-width: 0;
}

.course-row__title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--wp-ink);
    line-height: 1.4;
    margin: 0 0 0.2rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.course-row:hover .course-row__title {
    color: var(--wp-brand);
}

.course-row__summary {
    font-size: 0.78rem;
    color: var(--wp-ink-muted);
    line-height: 1.5;
    margin-bottom: 0.45rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-row__meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem 0.9rem;
    font-size: 0.75rem;
    color: var(--wp-ink-muted);
    font-variant-numeric: tabular-nums;
}

.course-row__period,
.course-row__members,
.course-row__date {
    white-space: nowrap;
}

.course-row__side {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
    flex-shrink: 0;
}

.course-row__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--wp-brand);
}

/* ══════════════════════════════════════════
   五、历史课程列表页头部
   ══════════════════════════════════════════ */

.course-page-header {
    background: linear-gradient(135deg, var(--wp-ink) 0%, #2d2010 100%);
    padding: 2.25rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.course-page-header::before {
    content: '课';
    font-family: 'Noto Serif SC', serif;
    font-size: 16rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.03);
    position: absolute;
    right: -1rem;
    top: -2.5rem;
    line-height: 1;
    pointer-events: none;
}

.course-page-header h1 {
    font-family: 'Noto Serif SC', 'Noto Serif', Georgia, serif;
    font-size: 1.75rem;
    font-weight: 600;
    color: #fff;
    margin: 0 0 0.3rem;
    letter-spacing: 0.08em;
}

.course-page-header p {
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.85rem;
    margin: 0;
}

.course-count-badge {
    background: var(--wp-brand);
    color: var(--wp-ink);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 9px;
    border-radius: 20px;
    margin-left: 0.6rem;
    vertical-align: middle;
    font-variant-numeric: tabular-nums;
}

/* ══════════════════════════════════════════
   六、响应式
   ══════════════════════════════════════════ */

@media (max-width: 1199px) {
    .course-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 991px) {
    .course-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575px) {
    .course-grid {
        grid-template-columns: 1fr;
    }

    .course-stats {
        gap: 0.5rem;
    }

    .course-stat {
        padding: 0.9rem 0.5rem;
    }

    .course-stat__value {
        font-size: 1.4rem;
    }

    .course-row {
        gap: 0.75rem;
        padding: 0.75rem;
    }

    .course-row__thumb {
        width: 84px;
        height: 56px;
    }

    .course-row__summary {
        display: none;
    }

    .course-row__side {
        gap: 0.4rem;
    }
}