/* Spezifisches Layout-CSS nur für die Themen-Übersicht (Kachel-Ansicht) */

/* Hero Overlay für Impulse-Seite transparenter machen */
.hero::before {
    background: linear-gradient(135deg, rgba(31, 46, 62, 0.4) 0%, rgba(94, 122, 138, 0.3) 100%) !important;
}

/* Hero Background für Impulse-Seite */
.hero.impulse-hero {
    background: url('../bilder/impulse.jpg') center center / cover no-repeat;
    background-color: var(--color-navy);
}

.hero-subtitle.impulse-subtitle {
    max-width: 100%;
}

.topics-section {
    padding: 3rem 6% 4.5rem;
}

.topics-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.topic-card {
    background: #ffffff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-gray-blue-light);
    transition: transform 0.18s ease-out, box-shadow 0.18s ease-out, border-color 0.18s ease-out;
}

.topic-link-wrapper {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.topic-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 45px rgba(0, 0, 0, 0.22);
    border-color: var(--color-turquoise-light);
}

.topic-image-wrapper {
    position: relative;
    padding-top: 58%;
    overflow: hidden;
}

.topic-image-wrapper img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.02);
    transition: transform 0.35s ease-out;
    display: block;
    background-color: var(--color-gray-blue-light);
}

.topic-card:hover .topic-image-wrapper img {
    transform: scale(1.06);
}

.topic-content {
    padding: 1.4rem 1.4rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.topic-tag {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: var(--color-gray-blue-light);
    color: var(--color-navy);
}

.topic-title {
    font-size: 1.1rem;
    line-height: 1.4;
    color: var(--color-navy);
    margin: 0.2rem 0 0.1rem;
}

.topic-description {
    font-size: 0.92rem;
    line-height: 1.6;
    color: #555555;
}

.topic-meta {
    font-size: 0.8rem;
    color: #7a7a7a;
    margin-top: 0.3rem;
}

.topic-link {
    margin-top: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-navy);
    text-decoration: none;
}

.topic-link span {
    transition: transform 0.18s ease-out;
}

.topic-card:hover .topic-link span {
    transform: translateX(3px);
}

/* Such- und Sortier-Controls */
.topics-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.5rem;
    align-items: center;
}

.search-wrapper {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.85rem 1rem 0.85rem 2.75rem;
    border: 2px solid var(--color-gray-blue-light);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-body);
    transition: border-color 0.2s ease-out;
}

.search-input:focus {
    outline: none;
    border-color: var(--color-turquoise-light);
}

.search-icon {
    position: absolute;
    left: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    opacity: 0.5;
    pointer-events: none;
}

.sort-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sort-label {
    font-size: 0.9rem;
    color: var(--color-blue-gray);
    font-weight: 500;
}

.sort-select {
    padding: 0.85rem 2.5rem 0.85rem 1rem;
    border: 2px solid var(--color-gray-blue-light);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-body);
    background-color: #fff;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235e7a8a' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    transition: border-color 0.2s ease-out;
}

.sort-select:focus {
    outline: none;
    border-color: var(--color-turquoise-light);
}

.no-results {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--color-blue-gray);
    display: none;
}

.no-results.show {
    display: block;
}

.no-results h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--color-navy);
}

.no-results p {
    font-size: 0.95rem;
}

.topics-grid.hidden {
    display: none;
}

/* Tablet: 2 Kacheln pro Reihe */
@media (max-width: 1024px) {
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

/* Mobile: 1 Kachel pro Reihe (gestapelt) */
@media (max-width: 768px) {
    .topics-section {
        padding: 2.5rem 5% 3.5rem;
    }

    .topics-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .topic-content {
        padding: 1.2rem 1.15rem 1.3rem;
    }

    .topics-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .search-wrapper {
        min-width: 100%;
    }

    .sort-wrapper {
        width: 100%;
        justify-content: space-between;
    }
}