/* Responsive Design - Mobile First Approach */

/* Tablet Styles */
@media (max-width: 768px) {
    /* Container adjustments */
    .container {
        padding: 0 var(--spacing-md);
    }
    
    /* Header */
    .navbar-toggle {
        display: flex;
    }
    
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }
    
    .navbar-menu.active {
        display: block;
    }
    
    .navbar-nav {
        flex-direction: column;
        padding: var(--spacing-md);
    }
    
    .nav-item {
        margin-left: 0;
        margin-bottom: var(--spacing-sm);
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    /* Hamburger menu animation */
    .navbar-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .navbar-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .navbar-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    /* Hero section */
    .hero-section {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Sections */
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    /* Grid adjustments */
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    /* Cards */
    .card {
        padding: var(--spacing-lg);
    }
    
    /* Contact section */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .contact-info {
        order: 2;
    }
    
    .contact-form {
        order: 1;
        padding: var(--spacing-lg);
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    /* Back to top button */
    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 45px;
        height: 45px;
    }
}

/* Mobile Styles */
@media (max-width: 480px) {
    /* Typography adjustments */
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-base);
    }
    
    /* Spacing adjustments */
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-section {
        padding: var(--spacing-xl) 0;
    }
    
    .section-header {
        margin-bottom: var(--spacing-xl);
    }
    
    /* Container */
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Cards */
    .card {
        padding: var(--spacing-md);
    }
    
    .card-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
    
    /* Service items */
    .service-item {
        padding: var(--spacing-md);
    }
    
    /* Contact form */
    .contact-form {
        padding: var(--spacing-md);
    }
    
    /* Footer */
    .footer {
        padding: var(--spacing-xl) 0 var(--spacing-md);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-section {
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    /* Buttons */
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        min-height: 48px; /* Larger touch target for mobile */
    }
    
    /* Form elements */
    .form-group input,
    .form-group textarea {
        padding: var(--spacing-sm);
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    /* Back to top button */
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: var(--spacing-sm);
        right: var(--spacing-sm);
    }
    
    /* Navigation improvements for mobile */
    .navbar {
        padding: var(--spacing-sm) 0;
    }
    
    .navbar-brand .logo {
        font-size: var(--font-size-lg);
    }
    
    /* Improve touch targets */
    .nav-link {
        min-height: 48px;
        display: flex;
        align-items: center;
    }
    
    /* Contact items stack better on mobile */
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .contact-item i {
        align-self: center;
    }
}

/* Large Desktop Styles */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .section-title {
        font-size: var(--font-size-5xl);
    }
    
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Extra Large Desktop Styles */
@media (min-width: 1400px) {
    .container {
        max-width: 1600px;
    }
    
    .section {
        padding: 5rem 0;
    }
    
    .hero-section {
        padding: 6rem 0;
    }
}

/* Landscape orientation adjustments */
@media (orientation: landscape) and (max-height: 500px) {
    .hero-section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-lg);
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --gray-600: #000000;
        --gray-700: #000000;
        --primary-color: #0000ff;
    }
    
    .btn-primary {
        border: 2px solid var(--white);
    }
    
    .card {
        border: 2px solid var(--gray-300);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --white: #1e293b;
        --light-gray: #0f172a;
        --gray-100: #1e293b;
        --gray-200: #334155;
        --gray-300: #475569;
        --gray-400: #64748b;
        --gray-500: #94a3b8;
        --gray-600: #cbd5e1;
        --gray-700: #e2e8f0;
        --gray-800: #f1f5f9;
        --gray-900: #f8fafc;
        --black: #ffffff;
    }
    
    body {
        background-color: var(--white);
        color: var(--gray-700);
    }
    
    .header {
        background-color: var(--gray-100);
        border-bottom: 1px solid var(--gray-300);
    }
    
    .card,
    .service-item,
    .contact-form {
        background-color: var(--gray-100);
        border: 1px solid var(--gray-300);
    }
    
    .footer {
        background-color: var(--black);
    }
}