/**
 * TU LMS - Compact Course Archive Layout
 * Tối ưu hóa không gian hiển thị, loại bỏ khoảng trống thừa trên máy tính và di động
 * Phạm vi: archive-tulms_course.php, taxonomy-tulms_course_category.php
 */

/* 1. SECTION & CONTAINER COMPACTION */
section[data-tulms-section="course_archive"],
.post-type-archive-tulms_course .site-main > .section,
.tax-tulms_course_category .site-main > .section {
    padding-block: 24px 44px;
}

@media (max-width: 768px) {
    section[data-tulms-section="course_archive"],
    .post-type-archive-tulms_course .site-main > .section,
    .tax-tulms_course_category .site-main > .section {
        padding-block: 16px 32px;
    }
}

/* 2. PAGE TITLE COMPACTION */
.post-type-archive-tulms_course .page-title,
.tax-tulms_course_category .page-title,
section[data-tulms-section="course_archive"] .page-title {
    max-width: 720px;
    margin-bottom: 16px;
}

.post-type-archive-tulms_course .page-title .eyebrow,
.tax-tulms_course_category .page-title .eyebrow,
section[data-tulms-section="course_archive"] .page-title .eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tu-primary);
    margin-bottom: 2px;
}

.post-type-archive-tulms_course .page-title h1,
.tax-tulms_course_category .page-title h1,
section[data-tulms-section="course_archive"] .page-title h1 {
    font-size: 26px;
    line-height: 1.25;
    letter-spacing: -0.03em;
    margin: 4px 0 6px;
    color: var(--tu-text);
}

.post-type-archive-tulms_course .page-title p,
.tax-tulms_course_category .page-title p,
section[data-tulms-section="course_archive"] .page-title p {
    font-size: 13.5px;
    line-height: 1.5;
    color: var(--tu-muted);
    margin: 0;
}

@media (max-width: 768px) {
    .post-type-archive-tulms_course .page-title,
    .tax-tulms_course_category .page-title,
    section[data-tulms-section="course_archive"] .page-title {
        margin-bottom: 14px;
    }

    .post-type-archive-tulms_course .page-title h1,
    .tax-tulms_course_category .page-title h1,
    section[data-tulms-section="course_archive"] .page-title h1 {
        font-size: 21px;
        margin: 2px 0 4px;
    }

    .post-type-archive-tulms_course .page-title p,
    .tax-tulms_course_category .page-title p,
    section[data-tulms-section="course_archive"] .page-title p {
        font-size: 12.5px;
    }
}

/* 3. UNIFIED TOOLBAR & HORIZONTAL TOPIC MENU */
.course-archive-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--tu-border);
}

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

.course-archive-toolbar__menu .course-topic-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    margin: 0;
    padding: 2px 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
}

.course-archive-toolbar__menu .course-topic-menu::-webkit-scrollbar {
    display: none;
}

.course-archive-toolbar__menu .course-topic-menu a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--tu-border);
    border-radius: 999px;
    background: #fff;
    color: var(--tu-text-soft);
    white-space: nowrap;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.15s ease;
}

.course-archive-toolbar__menu .course-topic-menu a:hover,
.course-archive-toolbar__menu .course-topic-menu a.is-active {
    border-color: var(--tu-primary-200);
    background: var(--tu-primary-50, #f0f7ff);
    color: var(--tu-primary);
    font-weight: 600;
}

.course-archive-toolbar__menu .course-topic-menu small {
    display: inline-grid;
    place-items: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--tu-surface-subtle, #f2f4f7);
    color: var(--tu-muted);
    font-size: 10px;
    line-height: 1;
}

.course-archive-toolbar__menu .course-topic-menu a.is-active small {
    background: var(--tu-primary-100);
    color: var(--tu-primary-700, #1677ff);
}

.course-archive-toolbar__search {
    flex-shrink: 0;
}

.course-archive-toolbar__search .archive-search {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 240px;
    height: 36px;
    border: 1px solid var(--tu-border);
    border-radius: 999px;
    padding: 0 12px;
    background: #fff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.course-archive-toolbar__search .archive-search:focus-within {
    border-color: var(--tu-primary);
    box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.12);
}

.course-archive-toolbar__search .archive-search .tu-icon {
    flex-shrink: 0;
    color: var(--tu-muted);
}

.course-archive-toolbar__search .archive-search input[type="search"] {
    border: 0;
    outline: 0;
    min-height: 32px;
    width: 100%;
    font-size: 12.5px;
    background: transparent;
    color: var(--tu-text);
    padding: 0;
}

.course-archive-toolbar__search .archive-search input[type="search"]::placeholder {
    color: var(--tu-subtle, #94a3b8);
}

@media (max-width: 860px) {
    .course-archive-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        margin-bottom: 16px;
        padding-bottom: 12px;
    }

    .course-archive-toolbar__search {
        width: 100%;
    }

    .course-archive-toolbar__search .archive-search {
        width: 100%;
        min-width: 0;
        height: 36px;
    }
}

/* 4. COURSE GRID & CARD COMPACTION */
.course-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 24px;
}

@media (max-width: 1024px) {
    .course-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
    }
}

@media (max-width: 580px) {
    .course-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
}

.course-grid .course-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #fff;
    border: 1px solid var(--tu-border);
    border-radius: var(--tu-radius-lg, 12px);
    overflow: hidden;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.course-grid .course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
    border-color: var(--tu-border-strong, #cbd5e1);
}

.course-grid .course-card__media {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
    min-height: 0;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    background: var(--tu-surface-subtle, #f8fafc);
}

.course-grid .course-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.course-grid .course-card:hover .course-card__media img {
    transform: scale(1.025);
}

.course-grid .course-card__badge {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 600;
}

.course-grid .course-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 13px 15px;
    gap: 7px;
}

.course-grid .course-card__category {
    font-size: 11px;
    font-weight: 600;
    color: var(--tu-primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.2;
}

.course-grid .course-card h3 {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: -0.015em;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 40px;
}

.course-grid .course-card h3 a {
    color: var(--tu-text);
    text-decoration: none;
    transition: color 0.15s ease;
}

.course-grid .course-card h3 a:hover {
    color: var(--tu-primary);
}

.course-grid .course-card__excerpt {
    font-size: 12.5px;
    line-height: 1.45;
    color: var(--tu-muted, #64748b);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 36px;
}

.course-grid .course-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 11.5px;
    color: var(--tu-muted);
    margin-top: auto;
    padding-top: 4px;
}

.course-grid .course-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.course-grid .course-meta .tu-icon {
    color: var(--tu-muted);
}

.course-grid .course-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding-top: 9px;
    margin-top: 4px;
    border-top: 1px solid var(--tu-border-subtle, #f1f5f9);
}

.course-grid .course-card__price {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--tu-text);
    line-height: 1;
}

.course-grid .course-card__price ins {
    text-decoration: none;
}

.course-grid .course-card__price del {
    font-size: 11px;
    color: var(--tu-subtle, #94a3b8);
    margin-right: 4px;
}

.course-grid .course-card__link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 500;
    color: var(--tu-primary);
    text-decoration: none;
    margin-left: auto;
    transition: transform 0.15s ease;
}

.course-grid .course-card__link:hover {
    transform: translateX(2px);
    text-decoration: none;
}

@media (max-width: 600px) {
    .course-grid .course-card__body {
        padding: 11px 13px;
        gap: 5px;
    }

    .course-grid .course-card h3 {
        font-size: 14.5px;
        min-height: auto;
    }

    .course-grid .course-card__excerpt {
        font-size: 12px;
        min-height: auto;
    }

    .course-grid .course-card__footer {
        padding-top: 8px;
        margin-top: 2px;
    }
}

/* 5. PAGINATION COMPACT */
.post-type-archive-tulms_course .navigation.pagination,
.tax-tulms_course_category .navigation.pagination {
    margin: 20px 0 0;
}

.post-type-archive-tulms_course .nav-links,
.tax-tulms_course_category .nav-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
}

.post-type-archive-tulms_course .page-numbers,
.tax-tulms_course_category .page-numbers {
    display: inline-grid;
    place-items: center;
    min-width: 34px;
    height: 34px;
    padding: 0 8px;
    border-radius: 8px;
    border: 1px solid var(--tu-border);
    background: #fff;
    color: var(--tu-text-soft);
    font-size: 12.5px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.15s ease;
}

.post-type-archive-tulms_course .page-numbers.current,
.tax-tulms_course_category .page-numbers.current {
    border-color: var(--tu-primary);
    background: var(--tu-primary);
    color: #fff;
    font-weight: 600;
}

.post-type-archive-tulms_course .page-numbers:hover:not(.current),
.tax-tulms_course_category .page-numbers:hover:not(.current) {
    border-color: var(--tu-primary-200);
    background: var(--tu-primary-50);
    color: var(--tu-primary);
}

/* 7. DYNAMIC CONTEXTUAL RECOMMENDED COURSE CARD */
.course-grid .course-card.course-card--contextual-recommended {
    border-color: rgba(37, 99, 235, 0.45);
    box-shadow: 0 4px 18px -2px rgba(37, 99, 235, 0.12), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
    position: relative;
    background: #ffffff;
}

.course-grid .course-card.course-card--contextual-recommended:hover {
    border-color: rgba(37, 99, 235, 0.65);
    box-shadow: 0 8px 24px -2px rgba(37, 99, 235, 0.18), 0 3px 8px -1px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

.course-card__recommended-badge {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 12px;
    background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
    border-bottom: 1px solid rgba(37, 99, 235, 0.18);
    font-size: 11.5px;
    line-height: 1.35;
    gap: 8px;
    flex-shrink: 0;
}

.course-card__recommended-badge-left {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    color: #1e40af;
    min-width: 0;
}

.course-card__recommended-icon {
    flex-shrink: 0;
    color: #2563eb;
}

.course-card__recommended-label {
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #1d4ed8;
    white-space: nowrap;
}

.course-card__recommended-source {
    font-size: 11px;
    color: #475569;
    font-weight: 400;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.course-card__recommended-source::before {
    content: "•";
    margin-right: 5px;
    color: #94a3b8;
}

.course-card__recommended-reset {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    padding: 2px 7px;
    font-size: 10.5px;
    font-weight: 500;
    color: #64748b;
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.5);
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.course-card__recommended-reset:hover {
    color: #0f172a;
    background: #f8fafc;
    border-color: #94a3b8;
    text-decoration: none;
}

@media (max-width: 600px) {
    .course-card__recommended-badge {
        padding: 6px 10px;
        font-size: 11px;
        gap: 6px;
    }

    .course-card__recommended-source {
        display: none;
    }

    .course-card__recommended-reset {
        font-size: 10px;
        padding: 2px 6px;
    }
}