/* ===================================
   Responsive Styles
   Mobile-First Approach
   =================================== */

/* Tablet (max-width: 992px) */
@media screen and (max-width: 992px) {
    :root {
        --header-height: 70px;
    }
    
    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background-color: var(--color-white);
        box-shadow: var(--shadow-xl);
        padding: var(--spacing-2xl) var(--spacing-lg);
        transition: right var(--transition-base);
        z-index: 1001;
    }
    
    .nav-menu.show {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .nav-link {
        font-size: 1.125rem;
    }
    
    .nav-toggle,
    .nav-close {
        display: block;
    }
    
    .nav-close {
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    /* Hero */
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    /* Services Grid */
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

/* Mobile (max-width: 768px) */
@media screen and (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }
    
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.375rem; }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 1.875rem;
    }
    
    /* Buttons */
    .hero-buttons,
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Quick Info */
    .quick-info-grid {
        grid-template-columns: 1fr;
    }
    
    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    /* Scroll Top */
    .scroll-top {
        bottom: 1rem;
        right: 1rem;
        width: 44px;
        height: 44px;
    }
}

/* Small Mobile (max-width: 480px) */
@media screen and (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-menu {
        width: 85%;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .hero-icon {
        width: 150px;
        height: 150px;
    }
    
    .info-card,
    .service-card {
        padding: var(--spacing-md);
    }
}

/* Large Desktop (min-width: 1400px) */
@media screen and (min-width: 1400px) {
    :root {
        --container-width: 1320px;
    }
}