/* ==========================================================================
   Single Post / Program / Gallery Item
   ========================================================================== */

/* --- Single Header (fallback when no featured image) --- */

.single-header {
    padding: var(--space-2xl) 0;
}

.single-header__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-ui);
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
    transition:
        color var(--transition-fast),
        transform var(--duration-micro) var(--ease-out-quart);
}

.single-header__back:hover {
    color: var(--color-accent);
    transform: translateX(-4px);
}

.single-header__title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-md);
}

.single-header__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-md);
    font-family: var(--font-ui);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* --- Program Header (dark banner) --- */

.program-header {
    background: var(--gradient-primary-dark);
    padding: calc(var(--header-height) + var(--space-xl)) 0 var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.program-header > .container {
    position: relative;
    z-index: 2;
}

.program-header__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-ui);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-lg);
    transition:
        color var(--transition-fast),
        transform var(--duration-micro) var(--ease-out-quart);
}

.program-header__back:hover {
    color: var(--color-accent);
    transform: translateX(-4px);
}

.program-header .program-type-badges {
    margin-bottom: var(--space-md);
}

.program-header .badge {
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-text-inverse);
    backdrop-filter: blur(4px);
}

.program-header .badge:hover {
    background-color: var(--color-accent);
    color: var(--color-text-inverse);
}

.program-header__title {
    font-size: var(--text-5xl);
    line-height: var(--leading-tight);
    color: var(--color-text-inverse);
    margin-bottom: 0;
    max-width: 800px;
    padding-bottom: var(--space-md);
    border-bottom: 3px solid var(--color-accent);
}

/* --- Program Featured Image (contained) --- */

.program-featured-image {
    margin: var(--space-2xl) 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-layered);
    max-height: 500px;
}

.program-featured-image__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    max-height: 500px;
}

/* --- Program Detail Strip --- */

.program-detail-strip {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    padding: var(--space-xl) 0;
}

.program-detail-strip__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-xl);
}

.program-detail-strip__item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding-left: var(--space-lg);
    border-left: 3px solid var(--color-accent);
}

.program-detail-strip__icon {
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.program-detail-strip__label {
    font-family: var(--font-ui);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-accent);
}

.program-detail-strip__value {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    color: var(--color-text-inverse);
}

/* --- Two-Column Layout --- */

.program-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-3xl);
    align-items: start;
    padding: var(--space-3xl) 0;
}

.program-layout__content {
    min-width: 0;
}

.program-layout__sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
}

/* --- Sidebar Card --- */

.program-sidebar-card {
    background: var(--color-bg-card);
    border-top: 3px solid var(--color-accent);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-layered);
    padding: var(--space-xl);
}

/* --- Sidebar Event Info --- */

.sidebar-event-info {
    margin-bottom: var(--space-lg);
}

.sidebar-event-info__title {
    font-family: var(--font-ui);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.sidebar-event-info__row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--color-text);
    padding: var(--space-sm) 0;
}

.sidebar-event-info__icon {
    color: var(--color-accent);
    flex-shrink: 0;
}

/* --- Sidebar CTA --- */

.program-sidebar-card__cta {
    display: block;
    width: 100%;
    text-align: center;
    margin-bottom: var(--space-lg);
}

/* --- Sidebar Program Types --- */

.program-sidebar-card__types {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
    margin-bottom: var(--space-lg);
}

.program-sidebar-card__section-title {
    font-family: var(--font-ui);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.program-sidebar-card__type-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.program-sidebar-card__type-list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.program-sidebar-card__count {
    font-family: var(--font-ui);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

/* --- Share Links --- */

.share-links {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
}

.share-links__label {
    display: block;
    font-family: var(--font-ui);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.share-links__icons {
    display: flex;
    gap: var(--space-sm);
}

.share-links__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-bg-warm);
    color: var(--color-primary);
    transition:
        transform var(--duration-micro) var(--ease-out-back),
        background-color var(--duration-micro) var(--ease-out-quart),
        color var(--transition-fast);
}

.share-links__link:hover {
    background-color: var(--color-accent);
    color: var(--color-text-inverse);
    transform: translateY(-2px);
}

.share-links__link svg {
    width: 16px;
    height: 16px;
}

/* --- Section Header Link --- */

.section-header__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-ui);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-accent);
    transition:
        color var(--transition-fast),
        transform var(--duration-micro) var(--ease-out-quart);
}

.section-header__link:hover {
    color: var(--color-accent-dark);
    transform: translateX(4px);
}

/* --- Enhanced Post Navigation --- */

.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-2xl);
}

.post-navigation__link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-bg-warm);
    border-radius: var(--radius-md);
    transition:
        transform var(--duration-micro) var(--ease-out-quart),
        background-color var(--transition-fast),
        box-shadow var(--duration-micro) var(--ease-out-quart);
}

.post-navigation__link:hover {
    background: var(--color-bg-card);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.post-navigation__thumb {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.post-navigation__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-navigation__thumb--placeholder {
    background: var(--color-accent);
    opacity: 0.2;
}

.post-navigation__text {
    flex: 1;
    min-width: 0;
}

.post-navigation__label {
    display: block;
    font-family: var(--font-ui);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.post-navigation__title {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    color: var(--color-primary);
    line-height: var(--leading-tight);
}

.post-navigation__link--next {
    text-align: right;
    flex-direction: row-reverse;
}

/* --- Single Content --- */

.single-content {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding-bottom: var(--space-3xl);
}

/* --- Related Posts --- */

.related-posts {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-warm);
}

.related-posts__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

/* --- Related Programs Section --- */

.related-programs {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-warm);
}

/* --- Featured Image (kept for non-program singles) --- */

.single-featured-image {
    margin-bottom: var(--space-2xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-height: 500px;
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity var(--duration-entrance) var(--ease-out-expo),
        transform var(--duration-entrance) var(--ease-out-expo);
}

.single-featured-image.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.single-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}