/* Tablets */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .countdown-timer {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .hamburger {
        display: flex;
    }
}

/* Móviles */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .countdown-timer {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .countdown-item {
        padding: 1rem;
    }
    
    .countdown-value {
        font-size: 1.8rem;
    }
    
    .promociones-grid {
        grid-template-columns: 1fr;
    }
}