/* ================================================================
   Responsive Styles — shadcn/ui Design System
   ================================================================
   Breakpoints follow a desktop-first approach to match the
   existing site structure. All values use the new design tokens.
   ================================================================ */

/* ── Extra Small Devices (≤ 320px) ─────────────────────────────── */
@media (max-width: 320px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-features {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}


/* ── Small Devices (≤ 576px) ───────────────────────────────────── */
@media (max-width: 576px) {
    .header-content {
        flex-wrap: wrap;
    }

    .logo {
        order: 1;
    }

    .header-actions {
        order: 2;
        margin-left: auto;
    }

    .nav {
        order: 3;
        width: 100%;
        margin-top: var(--spacing-md);
    }

    .nav-list {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .nav-link {
        display: block;
        text-align: center;
        padding: var(--spacing-md);
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section-header h2 {
        font-size: var(--font-size-2xl);
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .navigation-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .address-info {
        text-align: center;
    }

    .address-link {
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .contact-info p {
        justify-content: center;
    }

    .phone-link,
    .email-link,
    .address-link {
        color: hsl(var(--muted-foreground));
        text-decoration: none;
        transition: color var(--transition);
    }

    .phone-link:hover,
    .email-link:hover,
    .address-link:hover {
        color: hsl(var(--foreground));
    }
}


/* ── Medium Devices — tablets (≤ 768px) ────────────────────────── */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background-color: hsl(var(--background));
        border-bottom: 1px solid hsl(var(--border));
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-slow);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .nav-link {
        display: block;
        padding: var(--spacing-md);
        text-align: center;
        border-radius: var(--radius);
    }

    .hero {
        padding: 80px 0 48px;
        margin-top: 76px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-actions {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-features {
        justify-content: center;
    }

    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: var(--spacing-md);
    }

    .brands-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: var(--spacing-lg);
    }

    .cta-content h2 {
        font-size: var(--font-size-2xl);
    }

    .brands-carousel {
        height: 60px;
    }

    .brand-text {
        font-size: 1.1rem;
    }

    /* Mobile Dropdown & Accordion Menu */
    .nav-item-dropdown {
        width: 100%;
        text-align: center;
    }
    
    .nav-item-dropdown:hover .dropdown-icon {
        transform: none;
    }

    .mega-menu {
        position: static;
        transform: none !important;
        width: 100%;
        box-shadow: none;
        border: none;
        background: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: max-height var(--transition-slow) ease-out, opacity var(--transition) ease-out;
    }
    
    .nav-item-dropdown.active .mega-menu {
        max-height: 2000px;
        opacity: 1;
        visibility: visible;
        padding: var(--spacing-sm) 0 var(--spacing-md);
    }
    
    .mega-menu-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .mega-menu-column h3 {
        font-size: var(--font-size-xs);
        margin-bottom: var(--spacing-xs);
        justify-content: center;
    }
    
    .mega-menu-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: var(--spacing-xs);
        padding: 0 var(--spacing-sm);
    }
    
    .mega-menu-grid a {
        background-color: hsl(var(--accent));
        border: 1px solid hsl(var(--border) / 0.5);
        text-align: center;
        padding: var(--spacing-sm) var(--spacing-xs);
        border-radius: var(--radius);
        color: hsl(var(--foreground));
        font-size: var(--font-size-xs);
        display: flex;
        align-items: center;
        justify-content: center;
        text-overflow: clip;
        white-space: normal;
    }
    
    .mega-menu-grid a:hover {
        background-color: hsl(var(--primary));
        color: hsl(var(--primary-foreground));
        transform: none;
    }

    .brands-carousel-container {
        gap: var(--spacing-sm);
    }
}


/* ── Large Devices — small desktops (≤ 992px) ──────────────────── */
@media (max-width: 992px) {
    .hero-content {
        gap: var(--spacing-2xl);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }

    .brands-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
}


/* ── Extra Large (≥ 1200px) ────────────────────────────────────── */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}


/* ── Very Large Screens (≥ 1600px) ─────────────────────────────── */
@media (min-width: 1600px) {
    .container {
        max-width: 1400px;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .section-header h2 {
        font-size: var(--font-size-4xl);
    }
}


/* ── Print ─────────────────────────────────────────────────────── */
@media print {
    .header,
    .footer,
    .cta-section,
    .mobile-menu-toggle,
    .floating-whatsapp {
        display: none;
    }

    .hero {
        padding: 0;
        margin-top: 0;
    }

    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000;
        background: #fff;
    }

    .container {
        max-width: none;
        padding: 0;
    }

    h1, h2, h3, h4, h5, h6 {
        color: #000;
    }

    p {
        color: #333;
    }
}


/* ── High DPI ──────────────────────────────────────────────────── */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .service-icon {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}


/* ── Reduced Motion ────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .service-card:hover,
    .cta-button:hover,
    .certificate-banner-item:hover {
        transform: none;
    }
}


/* ── Touch Devices ─────────────────────────────────────────────── */
@media (hover: none) and (pointer: coarse) {
    .service-card:hover {
        transform: none;
        box-shadow: none;
    }

    .cta-button:hover {
        transform: none;
    }

    .nav-link:hover {
        background-color: transparent;
    }

    /* Ensure minimum touch targets (44px) */
    .nav-link,
    .cta-button,
    .lang-link {
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .mobile-menu-toggle {
        min-height: 44px;
        min-width: 44px;
    }
}


/* ── Landscape Mobile ──────────────────────────────────────────── */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        padding: 60px 0 32px;
        margin-top: 76px;
    }

    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-description {
        font-size: var(--font-size-sm);
    }

    .hero-actions {
        flex-direction: row;
        flex-wrap: wrap;
    }
}


/* ── High Contrast ─────────────────────────────────────────────── */
@media (prefers-contrast: high) {
    :root {
        --border: 0 0% 50%;
        --muted-foreground: 0 0% 80%;
    }

    .service-card {
        border-width: 2px;
    }

    .nav-link.active {
        border: 2px solid hsl(var(--foreground));
    }
}


/* ── JS Enhancement Classes ────────────────────────────────────── */
.js-enabled .nav {
    transition: all var(--transition-slow);
}

.js-enabled .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.js-enabled .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.js-enabled .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}


/* ── Loading States ────────────────────────────────────────────── */
.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid hsl(var(--border));
    border-top-color: hsl(var(--foreground));
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}


/* ── Focus Styles ──────────────────────────────────────────────── */
.cta-button:focus-visible,
.nav-link:focus-visible,
.lang-link:focus-visible,
.mobile-menu-toggle:focus-visible {
    outline: 2px solid hsl(var(--ring));
    outline-offset: 2px;
}