@media (max-width: 767px) {
    :root {
        --font-size-4xl: 32px;
        --font-size-3xl: 24px;
        --font-size-2xl: 20px;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-bg-primary);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-base);
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav-link {
        padding: var(--spacing-sm);
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        padding-top: calc(var(--header-height) + var(--spacing-xl));
    }
    
    .hero-values {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .value-card {
        padding: var(--spacing-md);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    .partners-list {
        overflow-x: auto;
        justify-content: flex-start;
        flex-wrap: nowrap;
        gap: var(--spacing-md);
        padding-bottom: var(--spacing-sm);
        -webkit-overflow-scrolling: touch;
    }
    
    .partner-item {
        flex-shrink: 0;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-values {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav {
        gap: var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero-values {
        grid-template-columns: repeat(4, 1fr);
    }
}