/* ============================================
   Responsive Styles
   ============================================ */

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

/* Desktop (1024px - 1439px) */
@media (max-width: 1439px) {
    /* Case cards now use flexbox, no grid-template-columns needed */
}

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-image {
        order: -1;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-card {
        flex-direction: column;
    }
    
    .case-image {
        min-height: 300px;
    }
    
    .contacts-content {
        grid-template-columns: 1fr;
    }
    
    .nav {
        display: none;
    }
    
    .burger {
        display: flex;
    }
    
    .header-cta {
        display: none;
    }
    
    .logo {
        display: none;
    }
    
    .header-content {
        grid-template-columns: 1fr auto;
    }
}

/* Mobile (320px - 767px) */
@media (max-width: 767px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: 6rem 0 3rem;
        margin-top: 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .section-header {
        margin-bottom: var(--spacing-xl);
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: var(--spacing-lg);
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-card {
        border-radius: var(--radius-md);
    }
    
    .case-content {
        padding: var(--spacing-md);
    }
    
    .case-title {
        font-size: 1.5rem;
    }
    
    .contact-form {
        padding: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .image-placeholder {
        min-height: 250px;
    }
    
    .prompt-text {
        font-size: 0.65rem;
        padding: var(--spacing-xs);
    }
}

/* Small Mobile (320px - 479px) */
@media (max-width: 479px) {
    .logo a {
        font-size: 1.25rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .service-title {
        font-size: 1.25rem;
    }
    
    .case-title {
        font-size: 1.25rem;
    }
    
    .image-placeholder {
        min-height: 200px;
    }
}

/* Mobile Menu Styles */
@media (max-width: 1023px) {
    .nav.active {
        display: block;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        width: 100vw;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-lg);
        z-index: 999;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }
    
    .nav.active .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
    }
    
    .nav.active .nav-link {
        width: 100%;
        padding: var(--spacing-md) 0;
        display: block;
        text-align: left;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .nav.active .nav-link:last-child {
        border-bottom: none;
    }
    
    .burger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .burger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .burger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .btn,
    .burger {
        display: none;
    }
    
    .hero {
        margin-top: 0;
        padding: 2rem 0;
    }
    
    section {
        page-break-inside: avoid;
    }
}