/* ======================================
   Responsive CSS
   ====================================== */

/* Large Devices */
@media (max-width: 1200px) {
    .hero-stats {
        gap: 40px;
    }
    
    .footer-grid {
        gap: 40px;
    }
}

/* Medium Devices */
@media (max-width: 992px) {
    .mission-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-hero {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .service-detail {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .service-detail:nth-child(even) {
        direction: ltr;
    }
    
    .numbers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-image {
        display: none;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-stats {
        flex-wrap: wrap;
    }
}

/* Tablets */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .nav-cta {
        display: none;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .hero-stat h3 {
        font-size: 2rem;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .glass-card {
        padding: 24px;
    }
    
    .consultation-banner {
        padding: 40px 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-bottom-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .page-header {
        padding: 120px 0 60px;
    }
    
    .tabs {
        justify-content: center;
    }
    
    .trust-badges {
        gap: 20px;
    }
    
    .sticky-cta {
        flex-direction: column;
        gap: 12px;
    }
    
    .sticky-cta-content {
        text-align: center;
    }
}

/* Mobile Devices */
@media (max-width: 576px) {
    .container {
        padding: 0 16px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .hero {
        padding: 100px 0 40px;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-stat h3 {
        font-size: 1.5rem;
    }
    
    .numbers-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .number-item h3 {
        font-size: 2.5rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
    
    .card {
        padding: 24px;
    }
    
    .testimonial-card {
        padding: 24px;
    }
    
    .testimonial-content {
        font-size: 1rem;
    }
    
    .faq-question {
        padding: 16px 20px;
    }
    
    .faq-answer {
        padding: 0 20px 16px;
    }
    
    .contact-form {
        padding: 24px;
    }
    
    .contact-info-card {
        padding: 24px;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
    
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        left: 20px;
    }
    
    .exit-popup-content {
        padding: 32px 24px;
    }
    
    .mobile-menu {
        max-width: 100%;
    }
    
    .client-logos {
        gap: 30px;
    }
    
    .client-logos img {
        height: 30px;
    }
}

/* Very Small Devices */
@media (max-width: 400px) {
    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .hero-stat {
        display: flex;
        align-items: center;
        gap: 16px;
    }
    
    .hero-stat h3 {
        font-size: 2rem;
    }
    
    .tabs {
        gap: 4px;
    }
    
    .tab-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 80px 0 40px;
    }
    
    .preloader {
        min-height: 100vh;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .whatsapp-float,
    .back-to-top,
    .sticky-cta,
    .preloader,
    .mobile-menu,
    .exit-popup,
    .notification {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero {
        background: none;
        color: black;
        min-height: auto;
        padding: 20px 0;
    }
    
    .hero h1,
    .hero p {
        color: black;
    }
    
    .section-dark {
        background: none;
        color: black;
    }
    
    .section-dark h1,
    .section-dark h2,
    .section-dark h3,
    .section-dark p {
        color: black;
    }
    
    .glass-card {
        background: white;
        border: 1px solid #ccc;
        backdrop-filter: none;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
    
    .btn {
        border: 1px solid black;
        background: white;
        color: black;
    }
}

/* High Resolution Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero::before,
    .hero::after {
        filter: blur(80px);
    }
}

/* 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;
    }
    
    .blob {
        animation: none;
    }
}

/* Dark Mode Preference */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #F8FAFC;
        --text-secondary: #94A3B8;
        --text-light: #64748B;
        --bg-white: #0F172A;
        --bg-gray: #1E293B;
        --border: #334155;
    }
}

/* Touch Devices */
@media (hover: none) and (pointer: coarse) {
    .card:hover,
    .service-card:hover,
    .course-card:hover {
        transform: none;
    }
    
    .faq-question:hover {
        background: transparent;
    }
    
    .dropdown-menu {
        display: none;
    }
}

/* Focus Styles for Accessibility */
*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Skip to Content Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--text-white);
    padding: 12px 24px;
    border-radius: 0 0 8px 8px;
    z-index: 10003;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* Container Queries Support */
@container (min-width: 768px) {
    .responsive-card {
        display: grid;
        grid-template-columns: 1fr 2fr;
        gap: 30px;
    }
}