/* Modern Project Section Styles - 4 Column Grid */
.project-filters {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 13px;
}

.filter-btn:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.filter-btn.active {
    background: var(--primary);
    color: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-bottom: 30px;
}

.project-card {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    cursor: pointer;
    background: white;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
}

.project-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .project-img img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), transparent);
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 12px;
}

.project-category {
    background: var(--primary);
    color: white;
    padding: 6px 14px;
    border-radius: 18px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3.5rem;
    color: white;
    opacity: 0.9;
    transition: all 0.3s ease;
    pointer-events: none;
}

.project-card:hover .play-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.project-info {
    padding: 18px 20px;
    background: white;
}

.project-info h3 {
    font-size: 0.9rem;
    margin: 0;
    color: var(--text-dark);
    font-weight: 600;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.load-more-container {
    text-align: center;
    margin-top: 40px;
}

.btn-load-more {
    padding: 12px 32px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.btn-load-more:hover {
    background: var(--primary-dark, #0056b3);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-load-more:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

@media (max-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-img {
        height: 220px;
    }
}

@media (max-width: 768px) {
    .project-filters {
        gap: 8px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 12px;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }

    .project-img {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-img {
        height: 240px;
    }
}