/* ==========================================================================
   Baharak — Collections (teachers / age groups / disorders)
   Loaded together with `list.css` by the collection list & detail templates.
   ========================================================================== */

/* ----- Collection grid + card ----- */

.collection-grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--space-5);
    grid-template-columns: 1fr;
}

@media (min-width: 40em) {
    .collection-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 64em) {
    .collection-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.collection-card {
    display: flex;
    flex-direction: column;
    block-size: 100%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    color: inherit;
    transition: box-shadow 160ms ease, transform 160ms ease, border-color 160ms ease;
}

.collection-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--color-primary-100);
    text-decoration: none;
}

.collection-card__cover {
    position: relative;
    aspect-ratio: 16 / 9;
    display: grid;
    place-items: center;
    background:
        radial-gradient(20rem 10rem at 20% -10%, var(--color-primary-100) 0%, transparent 70%),
        linear-gradient(135deg, var(--color-primary-50), var(--color-secondary-50));
    border-block-end: 1px solid var(--color-border);
}

.collection-card__cover--portrait {
    aspect-ratio: 4 / 3;
}

.collection-card__cover img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
}

.collection-card__initial {
    font-size: var(--text-h1);
    font-weight: 700;
    color: var(--color-primary-600);
    opacity: 0.55;
}

.collection-card__body {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-5);
    flex: 1;
}

.collection-card__title {
    margin: 0;
    font-size: var(--text-lg);
    color: var(--text-strong);
}

.collection-card__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin: 0;
    color: var(--text-body);
    font-size: var(--text-sm);
}

.collection-card__excerpt {
    margin: 0;
    color: var(--text-body);
    font-size: var(--text-sm);
    line-height: var(--line-height-normal);
}

/* ----- Detail hero ----- */

.collection-hero {
    background:
        radial-gradient(40rem 18rem at 90% -20%, var(--color-primary-100) 0%, transparent 65%),
        linear-gradient(to left, var(--color-primary-50), var(--color-surface));
    border-block-end: 1px solid var(--color-border);
}

.collection-hero__inner {
    display: grid;
    gap: var(--space-5);
    padding-block: var(--space-6);
    align-items: center;
}

@media (min-width: 48em) {
    .collection-hero__inner {
        grid-template-columns: 12rem minmax(0, 1fr);
    }
}

.collection-hero__avatar {
    display: grid;
    place-items: center;
    inline-size: 100%;
    aspect-ratio: 1 / 1;
    max-inline-size: 12rem;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--color-primary-100), var(--color-secondary-100));
    border: 3px solid var(--color-surface);
    box-shadow: var(--shadow-md);
    font-size: var(--text-h1);
    font-weight: 700;
    color: var(--color-primary-700);
}

.collection-hero__avatar img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
}

.collection-hero__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.collection-hero__title {
    margin: 0;
    color: var(--text-strong);
}

.collection-hero__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
    margin: 0;
}

.collection-hero__desc {
    color: var(--text-body);
    line-height: var(--line-height-normal);
}

.collection-hero__desc p {
    margin-block: 0 var(--space-2);
}

/* ----- Detail body ----- */

.collection-intro {
    margin-block: var(--space-6) var(--space-5);
    padding: var(--space-5);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    color: var(--text-body);
    line-height: var(--line-height-normal);
}

.collection-intro :first-child {
    margin-block-start: 0;
}

.collection-intro :last-child {
    margin-block-end: 0;
}

.collection-section-title {
    margin-block: var(--space-6) var(--space-4);
    font-size: var(--text-h3);
    color: var(--text-strong);
}

.collection-count {
    color: var(--text-body);
    font-size: var(--text-sm);
}