.intro-section {
    margin-bottom: 2rem;
}

.filter-bar {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--card-bg);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--accent-celeste);
    color: #ffffff;
    border-color: var(--accent-celeste);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-celeste);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.badge {
    background-color: var(--accent-celeste-light);
    color: var(--accent-celeste);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.year {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: bold;
}

.project-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.project-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}