/* ===================================
   Responsive Design - Mobile First
   =================================== */

/* Tablet (max-width: 992px) */
@media (max-width: 992px) {
    /* Typography adjustments */
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    
    /* Header - maintain consistent height */
    .header {
        height: 70px;
    }
    
    .header .container {
        margin: 0 5%;
    }
    
    /* Hero Section */
    .hero {
        min-height: auto;
        padding-top: calc(var(--spacing-xl) + 70px);
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-app-slider {
        width: 200px;
        height: 200px;
    }
    
    /* About Section */
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Services Section */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    /* Products Section */
    .products {
        padding: var(--spacing-md) 0;
    }

    .products .section-header {
        margin-bottom: var(--spacing-sm);
    }

    .product-showcase {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }
    
    .product-visuals {
        order: -1;
        flex-direction: row;
    }

    .phone-mockup {
        max-width: 180px;
    }

    .phone-mockup img {
        max-height: min(36vh, 320px);
    }
    
    /* Contact Section */
    .contact-content {
        grid-template-columns: 1fr;
    }

    /* Policy Page */
    .policy-layout {
        grid-template-columns: 1fr;
    }

    .policy-sidebar {
        position: static;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
    /* Root adjustments */
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    /* Container */
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-md) 0;
    }
    
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    
    /* Header - maintain consistent height */
    .header {
        height: 70px;
    }
    
    .header .container {
        margin: 0 auto;
        padding: 0 var(--spacing-sm);
    }
    
    /* Navigation */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-white);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: var(--spacing-lg) 0;
        gap: 0;
        box-shadow: var(--shadow-lg);
        transition: var(--transition-base);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-md);
        font-size: 1.1rem;
    }
    
    .nav-link::after {
        display: none;
    }
    
    /* Hero Section */
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-app-slider {
        width: 180px;
        height: 180px;
    }
    
    /* Section Headers */
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }

    /* Policy Page */
    .policy-hero h1 {
        font-size: 2.25rem;
    }

    .policy-intro {
        font-size: 1rem;
    }

    .app-policy-header {
        align-items: flex-start;
    }
    
    /* About Section */
    .stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    /* Services Section */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* Products Section */
    .product-logo {
        width: 64px;
        height: 64px;
    }
    
    .product-name {
        font-size: 1.8rem;
    }
    
    .product-tagline {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }
    
    .product-description {
        font-size: 0.95rem;
        line-height: 1.45;
        margin-bottom: var(--spacing-sm);
    }

    .product-showcase {
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-sm);
    }
    
    .product-visuals {
        flex-direction: row;
        gap: 0.75rem;
    }
    
    .phone-mockup {
        max-width: min(42vw, 145px);
    }

    .phone-mockup img {
        max-height: min(32vh, 250px);
    }

    .product-slider-controls {
        margin-top: var(--spacing-md);
    }

    .product-buttons .btn {
        min-height: 48px;
        padding: 0.65rem 1rem;
        font-size: 0.95rem;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Small Mobile (max-width: 480px) */
@media (max-width: 480px) {
    /* Typography */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    
    /* Header - maintain consistent height */
    .header {
        height: 70px;
    }
    
    /* Buttons */
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }
    
    /* Hero Section */
    .hero {
        padding-top: calc(var(--spacing-lg) + 70px);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-app-slider {
        width: 150px;
        height: 150px;
    }
    
    /* Service Cards */
    .service-icon {
        width: 60px;
        height: 60px;
    }
    
    .service-icon i {
        font-size: 1.5rem;
    }
    
    /* Stats */
    .stat-item {
        padding: var(--spacing-sm);
    }
    
    .stat-item h4 {
        font-size: 1.5rem;
    }
    
    /* Product */
    .product-logo {
        width: 56px;
        height: 56px;
    }
    
    .product-name {
        font-size: 1.5rem;
    }

    .product-description {
        font-size: 0.9rem;
    }

    .feature {
        margin-bottom: 0.5rem;
    }

    .feature span {
        font-size: 0.9rem;
    }

    .phone-mockup {
        max-width: min(42vw, 120px);
    }

    .phone-mockup img {
        max-height: min(30vh, 220px);
    }

    /* Policy Page */
    .policy-hero h1 {
        font-size: 1.9rem;
    }

    .policy-section h2 {
        font-size: 1.5rem;
    }

    .policy-section p,
    .policy-section li {
        font-size: 1rem;
    }
    
    /* Contact */
    .contact-form {
        padding: var(--spacing-md);
    }
    
    .social-links a {
        width: 40px;
        height: 40px;
    }
    
    .social-links a i {
        font-size: 1.1rem;
    }
}

/* Landscape Mobile */
@media (max-height: 600px) and (orientation: landscape) {
    .nav-menu {
        height: calc(100vh - 60px);
        padding: var(--spacing-md) 0;
    }
    
    .nav-link {
        padding: var(--spacing-sm);
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
}

/* Print Styles */
@media print {
    .header,
    .hamburger,
    .hero-buttons,
    .contact-form,
    .social-links,
    .footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    h1 { font-size: 24pt; }
    h2 { font-size: 20pt; }
    h3 { font-size: 16pt; }
    
    section {
        page-break-inside: avoid;
    }
}