/* ═══════════════════════════════════════════════════
   Periodicals hub page
   ═══════════════════════════════════════════════════ */

/* ── Layout ── */

.sk-periodicals-layout {
    min-height: 100vh;
}

.sk-periodicals-content {
    padding: var(--sk-padding-lg) var(--sk-padding-md);
}

/* ── Sidebar ── */

.sk-periodicals-sidebar__subtitle {
    font-size: 13px;
    color: var(--sk-gray);
    margin: 4px 0 var(--sk-padding-sm);
    line-height: 1.5;
}

.sk-periodicals-sidebar-group {
    margin-bottom: var(--sk-padding-sm);
    border-bottom: 1px solid var(--sk-light-gray);
    padding-bottom: var(--sk-padding-xs);
}

.sk-periodicals-sidebar-group > .sk-sidebar-tools__toggle {
    padding: var(--sk-padding-xs) 0;
}

.sk-periodicals-sidebar-group > .sk-sidebar-tools__toggle .sk-sidebar-tools__heading {
    font-size: var(--sk-label-size);
    color: var(--sk-gray);
}

.sk-periodicals-sidebar__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sk-periodicals-sidebar__list li {
    border-bottom: 1px solid var(--sk-light-gray);
}

.sk-periodicals-sidebar__list li:last-child {
    border-bottom: none;
}

.sk-periodicals-sidebar__list li a,
.sk-periodicals-sidebar__list li span {
    display: flex;
    align-items: stretch;
    gap: 0;
    padding: 0;
    padding-inline-start: var(--sk-padding-sm);
    color: var(--sk-gray);
    text-decoration: none;
    font-size: 15px;
    line-height: 1.4;
    transition: all 0.15s;
    position: relative;
}

.sk-periodicals-sidebar__list li a:hover {
    color: var(--sk-dark);
}

.sk-periodicals-sidebar__list .sk-periodicals-sidebar__item-title {
    flex: 1;
    padding: var(--sk-padding-xs) 0;
}

.sk-periodicals-sidebar__list .sk-periodicals-sidebar__item-years {
    font-family: var(--sk-font-mono);
    font-size: 10px;
    letter-spacing: 1px;
    white-space: nowrap;
    color: var(--sk-dark);
    writing-mode: vertical-lr;
    text-orientation: mixed;
    transform: rotate(180deg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px 3px;
    border-inline-start: 1px solid var(--sk-light-gray);
    min-width: 18px;
}

/* Sidebar dominant color backgrounds */

.sk-periodicals-sidebar__list li a[style*="--p-color"],
.sk-periodicals-sidebar__list li span[style*="--p-color"] {
    background-color: rgb(var(--p-color));
    color: #fff;
}

.sk-periodicals-sidebar__list li a[style*="--p-color"] .sk-periodicals-sidebar__item-title,
.sk-periodicals-sidebar__list li span[style*="--p-color"] .sk-periodicals-sidebar__item-title {
    color: #fff;
}

.sk-periodicals-sidebar__list li a[style*="--p-color"] .sk-periodicals-sidebar__item-years,
.sk-periodicals-sidebar__list li span[style*="--p-color"] .sk-periodicals-sidebar__item-years {
    color: #fff;
    border-inline-start-color: rgba(255, 255, 255, 0.2);
}

.sk-periodicals-sidebar__list li a[style*="--p-color"]:hover {
    filter: brightness(1.15);
    color: #fff;
}

/* ── Content header (hidden on desktop — sidebar shows it) ── */

.sk-periodicals-header {
    display: none;
    padding: var(--sk-padding-md) 0 var(--sk-padding-sm);
}

.sk-periodicals-header .sk-page-title {
    margin: 0 0 4px;
}

.sk-periodicals-header__subtitle {
    font-size: 14px;
    color: var(--sk-gray);
    margin: 0 0 var(--sk-padding-xs);
    line-height: 1.5;
}

/* ── Tier groups ── */

.sk-periodicals-group {
    margin-bottom: var(--sk-padding-lg);
}

.sk-periodicals-group__label {
    padding: var(--sk-padding-xs) 0;
}

/* ── Card grid ── */

.sk-periodicals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--sk-padding-md);
    padding: var(--sk-padding-md) 0;
}

/* ── Card ── */

.sk-periodicals-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--sk-light-gray);
    background: var(--sk-white);
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
}

.sk-periodicals-card--linked {
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.sk-periodicals-card--linked:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.sk-periodicals-card--linked:hover .sk-periodicals-card__cover img {
    transform: scale(1.03);
}

.sk-periodicals-card--linked:hover .sk-periodicals-card__cta {
    color: #fff;
}

.sk-periodicals-card--info {
    cursor: default;
}

/* ── Cover ── */

.sk-periodicals-card__cover {
    aspect-ratio: 1 / 1.25;
    overflow: hidden;
    background: var(--sk-light-gray);
}

.sk-periodicals-card__cover img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: top left;
    transition: transform 0.3s ease;
}

.sk-periodicals-card__cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f0ede8;
    padding: var(--sk-padding-md);
}

.sk-periodicals-card__cover-ar {
    font-size: clamp(28px, 4vw, 42px);
    color: #bbb4a8;
    text-align: center;
    line-height: 1.3;
}

/* ── Card body ── */

.sk-periodicals-card__body {
    padding: var(--sk-padding-sm) var(--sk-padding-sm) var(--sk-padding-md);
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.sk-periodicals-card__title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    color: var(--sk-darker);
    line-height: 1.3;
}

.sk-periodicals-card__title-ar {
    font-size: 20px;
    color: var(--sk-dark);
    margin: 0;
    line-height: 1.4;
}

.sk-periodicals-card__title-secondary {
    font-size: 14px;
    color: var(--sk-gray);
    margin: 0;
    line-height: 1.4;
}

.sk-periodicals-card__subtitle {
    font-size: 11px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--sk-gray);
    margin: 0 0 4px;
}

.sk-periodicals-card__description {
    font-size: 13px;
    color: var(--sk-gray);
    line-height: 1.6;
    margin: 4px 0 8px;
}

.sk-periodicals-card__meta {
    font-size: 11px;
    letter-spacing: 0.3px;
    color: var(--sk-gray);
    margin-top: 8px;
}

.sk-periodicals-card__co-editor {
    font-size: 11px;
    color: var(--sk-gray);
    margin-top: 2px;
}

.sk-periodicals-card__stats {
    font-size: 11px;
    color: var(--sk-gray);
    margin-top: 2px;
}

.sk-periodicals-card__cta {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: #fff;
    background: #000;
    padding: 6px 14px;
    margin-top: 12px;
    transition: background 0.15s;
}

.sk-periodicals-card--linked:hover .sk-periodicals-card__cta {
    background: #333;
    color: #fff;
}

/* ── Footnote ── */

.sk-periodicals-footnote {
    padding: var(--sk-padding-sm) 0 var(--sk-padding-lg);
}

.sk-periodicals-footnote__label {
    font-size: 11px;
    letter-spacing: 0.7px;
    text-transform: uppercase;
    color: var(--sk-gray);
    margin: var(--sk-padding-sm) 0 var(--sk-padding-xs);
}

.sk-periodicals-footnote__text {
    font-size: 13px;
    color: var(--sk-gray);
    line-height: 1.6;
}

.sk-periodicals-footnote__title {
    font-weight: 600;
    color: var(--sk-dark);
}

/* ── RTL ── */

[dir="rtl"] .sk-periodicals-content,
[dir="rtl"] .sk-periodicals-header,
[dir="rtl"] .sk-periodicals-card__body,
[dir="rtl"] .sk-periodicals-card__title,
[dir="rtl"] .sk-periodicals-card__description,
[dir="rtl"] .sk-periodicals-footnote__text {
    text-align: right;
}

[dir="rtl"] .sk-periodicals-sidebar__list li a,
[dir="rtl"] .sk-periodicals-sidebar__list li span {
    text-align: right;
    font-size: 17px;
}

[dir="rtl"] .sk-periodicals-sidebar__list .sk-periodicals-sidebar__item-years {
    font-size: 10px;
}


/* RTL content font-size bump (+2px) */
[dir="rtl"] .sk-periodicals-card__title { font-size: 20px; }
[dir="rtl"] .sk-periodicals-card__title-ar { font-size: 22px; }
[dir="rtl"] .sk-periodicals-card__subtitle { font-size: 13px; }
[dir="rtl"] .sk-periodicals-card__description { font-size: 15px; }
[dir="rtl"] .sk-periodicals-card__meta { font-size: 13px; }
[dir="rtl"] .sk-periodicals-card__co-editor { font-size: 13px; }
[dir="rtl"] .sk-periodicals-card__stats { font-size: 13px; }
[dir="rtl"] .sk-periodicals-card__cta { font-size: 13px; }
[dir="rtl"] .sk-periodicals-group__label .sk-label { font-size: 17px; }

/* ── Responsive ── */

@media (max-width: 1024px) {
    .sk-periodicals-header {
        display: block;
    }

    .sk-periodicals-layout > .sk-archive-sidebar {
        position: static;
    }

    .sk-periodicals-layout > .sk-line-v {
        display: none;
    }

    .sk-periodicals-sidebar {
        border-bottom: 1px solid var(--sk-light-gray);
        padding-bottom: var(--sk-padding-sm);
        margin-bottom: var(--sk-padding-sm);
    }

    .sk-periodicals-sidebar-group {
        border-bottom: none;
        margin-bottom: 0;
    }

    .sk-periodicals-sidebar__list {
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
    }

    .sk-periodicals-sidebar__list li {
        border-bottom: none;
    }

    .sk-periodicals-sidebar__list li a,
    .sk-periodicals-sidebar__list li span {
        padding: 4px 10px;
        font-size: 12px;
        background: var(--sk-light-gray);
        border-radius: 2px;
    }

    .sk-periodicals-sidebar__item-years {
        display: none;
    }
}

@media (max-width: 768px) {
    .sk-periodicals-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--sk-padding-sm);
    }
}

@media (max-width: 480px) {
    .sk-periodicals-grid {
        grid-template-columns: 1fr;
    }

    .sk-periodicals-card__cover {
        aspect-ratio: 16 / 9;
    }
}