/* ===== CATALOG SECTION ===== */
.catalog {
    padding: 6rem 0;
    background: var(--white);
}

.catalog-filters {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
}

.filter-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--gray-100);
    border: 2px solid transparent;
    border-radius: 50px;
    color: var(--text-dark);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.filter-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

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

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.program-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
}

.program-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.program-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 2rem;
    text-align: center;
    position: relative;
}

.program-header::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 10px solid var(--secondary-color);
}

.program-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.program-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.program-level {
    font-size: 0.9rem;
    opacity: 0.8;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    display: inline-block;
}

.program-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.program-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.program-features {
    list-style: none;
    margin-bottom: 1.5rem;
    flex: 1;
}

.program-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.program-features i {
    color: var(--success-color);
    width: 16px;
}

.program-duration {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-200);
    font-size: 0.9rem;
    color: var(--text-light);
}

.program-actions {
    padding: 1.5rem 2rem;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.program-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-family: 'Inter', sans-serif;
}

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

.program-btn.primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.program-btn.secondary {
    background: var(--gray-100);
    color: var(--text-dark);
    border: 2px solid var(--gray-200);
}

.program-btn.secondary:hover {
    background: var(--gray-200);
    transform: translateY(-2px);
}

.load-more-container {
    text-align: center;
}

.load-more-btn {
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.load-more-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}