.filter-bar {
    text-align: center;
    margin-bottom: 30px;
}

.news-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border: 1px solid var(--tni-blue);
    background: transparent;
    color: var(--tni-blue);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.filter-btn.active, .filter-btn:hover {
    background: var(--tni-blue);
    color: white;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: 250px;
    gap: 15px;
    margin-bottom: 30px;
}

.gallery-item {
    position: relative;
    border-radius: 5px;
    overflow: hidden;
    background: #000;
    min-height: 250px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.video-item {
    grid-column: span 2; 
    background: #000;
}

.video-item iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

.audio-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.audio-card {
    background: var(--white);
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    gap: 15px;
    border-left: 5px solid var(--tni-gold);
}

.audio-icon {
    width: 50px;
    height: 50px;
    background: var(--tni-blue);
    color: var(--tni-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.audio-info {
    flex: 1;
}

.audio-info h4 {
    margin-bottom: 5px;
    font-size: 0.95rem;
    color: var(--tni-blue);
}

audio {
    width: 100%;
    height: 30px;
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 51, 102, 0.85);
    color: white;
    padding: 10px;
    font-size: 0.9rem;
    transform: translateY(100%);
    transition: transform 0.3s;
    text-align: center;
}

.category-audio {
    background: transparent;
}

.overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 51, 102, 0.8);
    color: var(--white);
    padding: 10px;
    transform: translateY(100%);
    transition: transform 0.3s;
    font-size: 0.9rem;
    text-align: center;
}

.gallery-item:hover .overlay {
    transform: translateY(0);
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@media (max-width: 768px) {
    .filter-bar {
        margin-bottom: 25px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
        gap: 12px;
    }

    .gallery-item {
        min-height: 180px;
    }

    .video-item {
        grid-column: span 2;
    }

    .audio-section {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .audio-card {
        padding: 12px;
        gap: 12px;
    }

    .audio-icon {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }

    .audio-info h4 {
        font-size: 0.9rem;
    }

    .gallery-caption,
    .overlay {
        font-size: 0.85rem;
        padding: 8px;
    }
}