.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.tech-item {
    background: var(--light);
    border-radius: var(--border-radius);
    padding: 15px;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.tech-item:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.tech-item i {
    font-size: 2rem;
}