/* Topic grid (Themenwelt-Cards auf der Startseite) */

.topic-grid {
    margin: var(--space-25) 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-15);
}

.topic-card {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    aspect-ratio: 3 / 2;
    border-radius: var(--radius-lg);
    overflow: hidden;
    color: var(--color-white);
}

/* Fallback, falls keine card_image hinterlegt ist: markige Verlaufsfläche statt kaputtem Bild */
.topic-card--fallback {
    background: linear-gradient(155deg, var(--color-primary) 0%, var(--color-olive-dark) 130%);
}

.topic-card:active {
    transform: scale(0.99);
}

.topic-card:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 3px;
}

.topic-card__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.topic-card:hover .topic-card__image {
    transform: scale(1.06);
}

.topic-card__scrim {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(8, 39, 47, 0.18) 0%, rgba(8, 39, 47, 0.4) 40%, rgba(8, 39, 47, 0.68) 70%, rgba(8, 39, 47, 0.94) 100%);
    transition: background 0.25s ease;
}

.topic-card:hover .topic-card__scrim {
    background: linear-gradient(180deg, rgba(8, 39, 47, 0.22) 0%, rgba(8, 39, 47, 0.48) 30%, rgba(8, 39, 47, 0.75) 65%, rgba(8, 39, 47, 0.96) 100%);
}

.topic-card__body {
    position: relative;
    padding: var(--space-15);
}

.topic-card__title {
    color: var(--color-white);
    font-size: 1.4rem;
    margin: 0 0 var(--space-04);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.9), 0 2px 16px rgba(0, 0, 0, 0.75);
}

.topic-card__text {
    font-size: var(--font-size-sm);
    color: var(--color-white);
    margin: 0 0 var(--space-1);
    max-width: 32ch;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.9), 0 1px 10px rgba(0, 0, 0, 0.7);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.topic-card__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-04);
    background: var(--color-olive);
    color: var(--color-white);
    font-weight: 700;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.5rem 1.1rem;
    border-radius: var(--radius-pill);
    transition: background 0.2s ease, transform 0.2s ease;
}

.topic-card:hover .topic-card__cta {
    background: var(--color-accent-dark);
    transform: translateX(2px);
}

@media (max-width: 640px) {
    .topic-card {
        aspect-ratio: 4 / 3;
    }
}