/**
 * Contextual SEO — Inline Related Posts frontend styles
 * Inspired by Inline Related Posts (IntellyWP) but unified with Contextual SEO design tokens.
 */

.cseo-irp {
        display: block;
        margin: var(--cseo-irp-mt, 1em) 0 var(--cseo-irp-mb, 1em);
        font-family: var(--cseo-font);
        opacity: var(--cseo-irp-opacity, 1);
        transition: opacity var(--cseo-dur) var(--cseo-ease);
        background: var(--cseo-irp-box, #fff);
        border-radius: var(--cseo-radius, 6px);
        overflow: hidden;
}

.cseo-irp.has-shadow {
        box-shadow: var(--cseo-shadow, 0 1px 3px rgba(0,0,0,0.08));
}

.cseo-irp__link {
        display: flex;
        align-items: center;
        gap: var(--cseo-space-3);
        padding: var(--cseo-space-3) var(--cseo-space-4);
        text-decoration: none;
        color: inherit;
        transition: background-color var(--cseo-dur) var(--cseo-ease);
}

.cseo-irp__link:hover,
.cseo-irp__link:focus {
        text-decoration: none;
}

/* CTA + Title */
.cseo-irp__text {
        display: inline-flex;
        flex-wrap: wrap;
        align-items: baseline;
        gap: var(--cseo-space-2);
        flex: 1 1 auto;
        min-width: 0;
}

.cseo-irp__cta {
        color: var(--cseo-irp-cta, #3b82f6);
        font-weight: 700;
        font-size: var(--cseo-fs-sm, 12px);
        text-transform: uppercase;
        letter-spacing: 0.04em;
        white-space: nowrap;
}

.cseo-irp__title {
        color: var(--cseo-irp-text, #0f172a);
        font-weight: 600;
        font-size: var(--cseo-fs-md, 15px);
        line-height: 1.4;
        text-decoration: underline;
        text-decoration-color: transparent;
        text-underline-offset: 3px;
        transition: text-decoration-color var(--cseo-dur) var(--cseo-ease);
}

.cseo-irp__link:hover .cseo-irp__title,
.cseo-irp__link:focus .cseo-irp__title {
        text-decoration-color: var(--cseo-irp-border, #3b82f6);
}

.cseo-irp__arrow {
        flex: 0 0 auto;
        color: var(--cseo-irp-cta, #3b82f6);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        transition: transform var(--cseo-dur) var(--cseo-ease);
}
.cseo-irp__link:hover .cseo-irp__arrow {
        transform: translateX(-4px); /* RTL: arrow points left */
}

/* Thumbnail */
.cseo-irp__thumb-wrap {
        flex: 0 0 auto;
        display: inline-flex;
        align-items: center;
        overflow: hidden;
        border-radius: var(--cseo-radius-sm, 4px);
}
.cseo-irp__thumb {
        max-width: 80px;
        max-height: 60px;
        width: auto;
        height: auto;
        display: block;
        object-fit: cover;
}

/* === Theme: minimalist (left border) === */
.cseo-irp--minimalist {
        background: var(--cseo-irp-box, #fff);
        border: 0;
        border-inline-start: 4px solid var(--cseo-irp-border, #3b82f6);
        border-radius: 0;
        padding: 0;
}
.cseo-irp--minimalist .cseo-irp__link {
        padding: var(--cseo-space-3) var(--cseo-space-4);
}
.cseo-irp--minimalist .cseo-irp__thumb-wrap {
        display: none;
}

/* === Theme: shock (with arrow button on side) === */
.cseo-irp--shock {
        background: var(--cseo-irp-box, #fff);
        border: 1px solid var(--cseo-border, #e2e8f0);
        position: relative;
}
.cseo-irp--shock .cseo-irp__link {
        padding: var(--cseo-space-4) var(--cseo-space-5);
}
.cseo-irp--shock .cseo-irp__arrow {
        background: var(--cseo-irp-border, #3b82f6);
        color: #fff;
        width: 36px;
        height: 36px;
        border-radius: var(--cseo-radius-pill);
}
.cseo-irp--shock .cseo-irp__arrow svg {
        width: 18px;
        height: 18px;
}
.cseo-irp--shock .cseo-irp__link:hover .cseo-irp__arrow {
        background: var(--cseo-primary-dark, #2563eb);
}
.cseo-irp--shock .cseo-irp__thumb-wrap {
        display: none;
}

/* === Theme: sidebar (with thumbnail) === */
.cseo-irp--sidebar {
        background: var(--cseo-irp-box, #fff);
        border: 1px solid var(--cseo-border, #e2e8f0);
}
.cseo-irp--sidebar .cseo-irp__link {
        padding: var(--cseo-space-3);
        align-items: flex-start;
}
.cseo-irp--sidebar .cseo-irp__thumb-wrap {
        display: inline-flex;
        width: 100px;
        max-height: 75px;
}
.cseo-irp--sidebar .cseo-irp__thumb {
        max-width: 100px;
        max-height: 75px;
}
.cseo-irp--sidebar .cseo-irp__text {
        flex-direction: column;
        gap: var(--cseo-space-1);
}
.cseo-irp--sidebar .cseo-irp__title {
        font-size: var(--cseo-fs-base, 14px);
}

/* === Theme: boxed (filled background) === */
.cseo-irp--boxed {
        background: var(--cseo-irp-box, #f1f5f9);
        border: 0;
        border-inline-start: 4px solid var(--cseo-irp-border, #3b82f6);
}
.cseo-irp--boxed .cseo-irp__link {
        padding: var(--cseo-space-4) var(--cseo-space-5);
}
.cseo-irp--boxed .cseo-irp__link:hover {
        background: var(--cseo-surface-alt, #e2e8f0);
}
.cseo-irp--boxed .cseo-irp__thumb-wrap {
        display: none;
}

/* Mobile responsiveness */
@media (max-width: 600px) {
        .cseo-irp__link {
                padding: var(--cseo-space-3);
                gap: var(--cseo-space-2);
        }
        .cseo-irp__title {
                font-size: var(--cseo-fs-base, 14px);
        }
        .cseo-irp__cta {
                font-size: var(--cseo-fs-xs, 11px);
        }
        .cseo-irp--sidebar .cseo-irp__thumb-wrap {
                width: 70px;
                max-height: 55px;
        }
        .cseo-irp--sidebar .cseo-irp__thumb {
                max-width: 70px;
                max-height: 55px;
        }
        .cseo-irp--shock .cseo-irp__arrow {
                width: 32px;
                height: 32px;
        }
        /* Collection mobile */
        .cseo-irp-collection--thumbs_grid .cseo-irp-collection__list {
                grid-template-columns: repeat(2, 1fr);
        }
}

/* =====================================================================
   Collection styles — list + thumbs_grid (CRP-style)
   These share the same design tokens as the inline_box themes.
   ===================================================================== */

.cseo-irp-collection {
        margin: var(--cseo-irp-mt, 1em) 0 var(--cseo-irp-mb, 1em);
        background: var(--cseo-irp-box, #fff);
        border: 1px solid var(--cseo-border, #e2e8f0);
        border-radius: var(--cseo-radius, 6px);
        opacity: var(--cseo-irp-opacity, 1);
        padding: var(--cseo-space-5);
        font-family: var(--cseo-font);
        transition: opacity var(--cseo-dur) var(--cseo-ease);
}

.cseo-irp-collection.has-shadow {
        box-shadow: var(--cseo-shadow, 0 1px 3px rgba(0,0,0,0.08));
}

.cseo-irp-collection__heading {
        font-size: var(--cseo-fs-lg, 17px);
        font-weight: 700;
        color: var(--cseo-irp-text, #0f172a);
        margin: 0 0 var(--cseo-space-4);
        padding-bottom: var(--cseo-space-2);
        border-bottom: 2px solid var(--cseo-irp-border, #3b82f6);
        display: flex;
        align-items: center;
        gap: var(--cseo-space-2);
}

.cseo-irp-collection__heading::before {
        content: "";
        display: inline-block;
        width: 4px;
        height: 18px;
        background: var(--cseo-irp-border, #3b82f6);
        border-radius: var(--cseo-radius-sm, 4px);
}

.cseo-irp-collection__list {
        list-style: none;
        margin: 0;
        padding: 0;
}

/* === List style (text-only, CRP-style) === */
.cseo-irp-collection--list .cseo-irp-collection__list {
        display: flex;
        flex-direction: column;
        gap: var(--cseo-space-1);
}

.cseo-irp-collection--list .cseo-irp-collection__item {
        padding: var(--cseo-space-2) var(--cseo-space-3);
        border-radius: var(--cseo-radius-sm, 4px);
        transition: background-color var(--cseo-dur) var(--cseo-ease);
        position: relative;
        padding-inline-start: var(--cseo-space-5);
}

.cseo-irp-collection--list .cseo-irp-collection__item::before {
        content: "";
        position: absolute;
        inset-inline-start: var(--cseo-space-2);
        top: 50%;
        transform: translateY(-50%);
        width: 6px;
        height: 6px;
        border-radius: var(--cseo-radius-pill);
        background: var(--cseo-irp-cta, #3b82f6);
        opacity: 0.6;
        transition: all var(--cseo-dur) var(--cseo-ease);
}

.cseo-irp-collection--list .cseo-irp-collection__item:hover {
        background: var(--cseo-surface-alt, #f1f5f9);
}

.cseo-irp-collection--list .cseo-irp-collection__item:hover::before {
        opacity: 1;
        transform: translateY(-50%) scale(1.4);
}

.cseo-irp-collection__title {
        display: block;
        color: var(--cseo-irp-text, #0f172a);
        font-weight: 600;
        font-size: var(--cseo-fs-md, 15px);
        text-decoration: none;
        line-height: 1.5;
        transition: color var(--cseo-dur) var(--cseo-ease);
}

.cseo-irp-collection__title:hover,
.cseo-irp-collection__title:focus {
        color: var(--cseo-irp-cta, #3b82f6);
        text-decoration: none;
}

.cseo-irp-collection__excerpt {
        color: var(--cseo-text-muted, #64748b);
        font-size: var(--cseo-fs-sm, 12px);
        line-height: 1.5;
        margin: var(--cseo-space-1) 0 0;
}

.cseo-irp-collection__meta {
        display: flex;
        gap: var(--cseo-space-2);
        color: var(--cseo-text-subtle, #94a3b8);
        font-size: var(--cseo-fs-xs, 11px);
        margin-top: var(--cseo-space-1);
}

.cseo-irp-collection__meta time,
.cseo-irp-collection__meta .cseo-irp-collection__author {
        display: inline-flex;
        align-items: center;
}

.cseo-irp-collection__meta time::before {
        content: "📅";
        margin-inline-end: 4px;
        filter: grayscale(1) opacity(0.6);
        font-size: 10px;
}

.cseo-irp-collection__meta .cseo-irp-collection__author::before {
        content: "✍";
        margin-inline-end: 4px;
        filter: grayscale(1) opacity(0.6);
        font-size: 10px;
}

/* === Thumbs-grid style (CRP-style grid with thumbnails) === */
.cseo-irp-collection--thumbs_grid .cseo-irp-collection__list {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: var(--cseo-space-4);
}

.cseo-irp-collection--thumbs_grid .cseo-irp-collection__item {
        display: flex;
        flex-direction: column;
        background: var(--cseo-surface, #fff);
        border: 1px solid var(--cseo-border, #e2e8f0);
        border-radius: var(--cseo-radius-md, 8px);
        overflow: hidden;
        transition: all var(--cseo-dur) var(--cseo-ease);
}

.cseo-irp-collection--thumbs_grid .cseo-irp-collection__item:hover {
        border-color: var(--cseo-irp-border, #3b82f6);
        box-shadow: var(--cseo-shadow-md, 0 4px 6px rgba(0,0,0,0.05));
        transform: translateY(-2px);
}

.cseo-irp-collection__thumb-link {
        display: block;
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background: var(--cseo-surface-alt, #f1f5f9);
}

.cseo-irp-collection__thumb-wrap {
        display: block;
        width: 100%;
        height: 100%;
}

.cseo-irp-collection--thumbs_grid .cseo-irp__thumb {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
        transition: transform var(--cseo-dur) var(--cseo-ease);
}

.cseo-irp-collection--thumbs_grid .cseo-irp-collection__item:hover .cseo-irp__thumb {
        transform: scale(1.05);
}

.cseo-irp-collection--thumbs_grid .cseo-irp-collection__body {
        padding: var(--cseo-space-3);
        display: flex;
        flex-direction: column;
        gap: var(--cseo-space-1);
}

.cseo-irp-collection--thumbs_grid .cseo-irp-collection__title {
        font-size: var(--cseo-fs-base, 14px);
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
}

.cseo-irp-collection--thumbs_grid .cseo-irp-collection__excerpt {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
}

.cseo-irp-collection--thumbs_grid .cseo-irp-collection__meta {
        margin-top: auto;
        padding-top: var(--cseo-space-2);
        border-top: 1px solid var(--cseo-border, #e2e8f0);
}

/* Empty message block */
.cseo-irp-empty {
        margin: var(--cseo-irp-mt, 1em) 0 var(--cseo-irp-mb, 1em);
        padding: var(--cseo-space-4);
        background: var(--cseo-surface-alt, #f1f5f9);
        border-radius: var(--cseo-radius, 6px);
        color: var(--cseo-text-muted, #64748b);
        font-size: var(--cseo-fs-base, 14px);
        text-align: center;
        font-family: var(--cseo-font);
}

/* RTL adjustments — handled automatically by CSS logical properties (inset-inline-start, etc.) */
[dir="rtl"] .cseo-irp-collection__heading {
        text-align: right;
}

/* RTL: flip the inline-related arrow so it points in the reading direction. */
[dir="rtl"] .cseo-irp__arrow {
        transform: scaleX(-1);
}
[dir="rtl"] .cseo-irp__link:hover .cseo-irp__arrow {
        transform: scaleX(-1) translateX(-4px);
}

/* Multi-select widget (admin) */
.cseo-multiselect {
        font-family: var(--cseo-font);
        font-size: var(--cseo-fs-base, 14px);
}

/* Reduced motion — respect user preference. */
@media (prefers-reduced-motion: reduce) {
        .cseo-irp,
        .cseo-irp *,
        .cseo-irp *::before,
        .cseo-irp *::after,
        .cseo-irp-collection,
        .cseo-irp-collection * {
                animation-duration: 0.001ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.001ms !important;
                scroll-behavior: auto !important;
        }
}

/* ============================================================
 * Print styles — hide inline related boxes when printing
 * ============================================================ */
@media print {
    .cseo-irp,
    .cseo-irp-collection {
        display: none !important;
    }
}