/* ===== RESPONSIVE STYLES ===== */

/* ===== LARGE SCREENS (1440px+) ===== */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 4.5rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ===== DESKTOP (1024px - 1439px) ===== */
@media (max-width: 1439px) and (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== TABLET (768px - 1023px) ===== */
@media (max-width: 1023px) {
    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--secondary-white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        gap: 1rem;
        transition: var(--transition-fast);
        box-shadow: var(--shadow-medium);
        z-index: 999;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-item {
        width: 100%;
        text-align: center;
    }
    
    .nav-link {
        display: block;
        padding: 1rem;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--bg-light);
        width: 100%;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-cta {
        display: none;
    }
    
    /* Hero Section */
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .trust-badges {
        flex-direction: column;
        gap: 1rem;
    }
    
    .trust-badges .badge {
        max-width: none;
    }
    
    /* About Section */
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .stat {
        flex: 1;
        min-width: 200px;
    }
    
    /* Services Grid */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    /* Why Choose Us */
    .why-choose-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* Projects Grid */
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    /* Process Timeline */
    .process-timeline {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .process-timeline::before {
        display: none;
    }
    
    .process-step {
        display: flex;
        align-items: center;
        gap: 1.5rem;
        text-align: left;
        width: 100%;
        max-width: 400px;
    }
    
    .step-icon {
        margin: 0;
        flex-shrink: 0;
    }
    
    /* Certifications */
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Contact Form */
    .contact-form {
        padding: 2rem;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
}

/* ===== MOBILE (320px - 767px) ===== */
@media (max-width: 767px) {
    /* Base Typography */
    html {
        font-size: 14px;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
    
    /* Container */
    .container {
        padding: 0 15px;
    }
    
    /* Section Padding */
    section {
        padding: 60px 0;
    }
    
    /* Navigation */
    .nav-container {
        padding: 0.75rem 15px;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .nav-menu {
        top: 60px;
        height: calc(100vh - 60px);
    }
    
    /* Hero Section */
    .hero {
        min-height: 100vh;
        padding-top: 60px;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .trust-badges {
        margin: 1.5rem 0;
    }
    
    .trust-badges .badge {
        padding: 1rem;
    }
    
    .trust-badges .badge i {
        font-size: 2rem;
    }
    
    .trust-badges .badge span {
        font-size: 0.9rem;
    }
    
    /* Section Titles */
    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    
    /* About Section */
    .about-stats {
        flex-direction: column;
    }
    
    .stat {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .stat i {
        font-size: 2rem;
    }
    
    /* Services Grid */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .service-card i {
        font-size: 2.5rem;
    }
    
    /* Why Choose Us */
    .why-choose-column {
        padding: 1.5rem;
    }
    
    /* Projects Grid */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .project-card {
        height: 250px;
    }
    
    .project-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    /* Process Timeline */
    .process-step {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .step-icon {
        width: 60px;
        height: 60px;
    }
    
    .step-icon i {
        font-size: 1.5rem;
    }
    
    /* Certifications */
    .certifications-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .certification-badge {
        padding: 1.5rem;
    }
    
    .certification-badge i {
        font-size: 2.5rem;
    }
    
    /* Contact Form */
    .cta h2 {
        font-size: 2rem;
    }
    
    .cta p {
        font-size: 1rem;
    }
    
    .contact-form {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 12px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    /* Footer */
    .footer {
        padding: 3rem 0 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-brand {
        align-items: center;
    }
    
    .footer-logo-text {
        font-size: 1.75rem;
    }
    
    .contact-info li {
        justify-content: center;
        text-align: left;
    }
    
    /* Back to Top Button */
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ===== SMALL MOBILE (320px - 479px) ===== */
@media (max-width: 479px) {
    /* Hero */
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    /* Buttons */
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .btn-large {
        padding: 12px 24px;
        font-size: 1rem;
    }
    
    /* Trust Badges */
    .trust-badges .badge {
        padding: 0.75rem;
    }
    
    .trust-badges .badge i {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .trust-badges .badge span {
        font-size: 0.8rem;
        line-height: 1.2;
    }
    
    /* Service Cards */
    .service-card {
        padding: 1rem;
    }
    
    .service-card i {
        font-size: 2rem;
        margin-bottom: 0.75rem;
    }
    
    /* Project Cards */
    .project-card {
        height: 200px;
    }
    
    /* Contact Form */
    .contact-form {
        padding: 1rem;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
}

/* ===== LANDSCAPE MOBILE ===== */
@media (max-width: 767px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        padding-top: 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    .trust-badges {
        flex-direction: row;
        gap: 1rem;
        margin: 1rem 0;
    }
    
    .trust-badges .badge {
        padding: 0.75rem;
        flex: 1;
    }
    
    .trust-badges .badge i {
        font-size: 1.5rem;
    }
    
    .trust-badges .badge span {
        font-size: 0.8rem;
    }
}

/* ===== TOUCH DEVICE OPTIMIZATIONS ===== */
@media (hover: none) and (pointer: coarse) {
    /* Increase touch targets */
    .btn {
        min-height: 44px;
        padding: 12px 24px;
    }
    
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .filter-btn {
        min-height: 44px;
        padding: 12px 20px;
    }
    
    /* Remove hover effects */
    .service-card:hover,
    .project-card:hover,
    .certification-badge:hover,
    .why-choose-column:hover {
        transform: none;
        box-shadow: var(--shadow-light);
    }
    
    .btn:hover {
        transform: none;
    }
    
    /* Focus states for touch */
    .btn:focus,
    .nav-link:focus,
    .filter-btn:focus {
        outline: 2px solid var(--primary-red);
        outline-offset: 2px;
    }
}

/* ===== HIGH DPI DISPLAYS ===== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Optimize for retina displays */
    .hero-background {
        background-image: url('../images/hero-bg@2x.jpg');
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    /* Hide navigation and interactive elements */
    .navbar,
    .hamburger,
    .back-to-top,
    .project-filters,
    .contact-form {
        display: none !important;
    }
    
    /* Optimize layout for print */
    .hero {
        min-height: auto;
        padding: 2rem 0;
        background: none !important;
        color: var(--text-dark) !important;
    }
    
    .hero-title,
    .hero-subtitle {
        color: var(--text-dark) !important;
    }
    
    .services-grid,
    .projects-grid,
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1rem !important;
    }
    
    .process-timeline {
        flex-direction: column !important;
    }
    
    .footer {
        background: none !important;
        color: var(--text-dark) !important;
        border-top: 2px solid var(--text-dark);
    }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
    /* Disable animations for users who prefer reduced motion */
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .hero::before {
        animation: none;
    }
    
    .floating {
        animation: none;
    }
    
    .pulse {
        animation: none;
    }
}



/* ===== FOCUS VISIBLE SUPPORT ===== */
@supports selector(:focus-visible) {
    *:focus {
        outline: none;
    }
    
    *:focus-visible {
        outline: 2px solid var(--primary-red);
        outline-offset: 2px;
    }
}