/* Мобильные устройства (максимум 768px) */
@media (max-width: 768px) {
    .header-content {
        flex-direction: row;
        gap: 15px;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .tab-content-inner {
        padding: 25px;
    }

    .services-grid,
    .projects-list {
        grid-template-columns: 1fr;
    }

    .certificates-grid,
    .certificates-grid-page {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-card {
        padding: 25px;
    }

    .map-placeholder {
        height: 300px;
    }

    .page-title {
        font-size: 32px;
    }

    .page-subtitle {
        font-size: 18px;
    }

    .services-page-grid {
        grid-template-columns: 1fr;
    }

    .service-section {
        padding: 30px;
    }

    .project-detail {
        padding: 30px;
    }

    .laboratory-about,
    .laboratory-services-page {
        padding: 30px;
    }

    .lab-service-page {
        padding: 20px;
    }
}

/* Маленькие планшеты (максимум 480px) */
@media (max-width: 480px) {
    .logo h1 {
        font-size: 20px;
    }

    .nav-menu {
        gap: 10px;
    }

    .nav-link {
        font-size: 14px;
    }

    .phone-btn {
        padding: 8px 15px;
        font-size: 14px;
    }

    .hero {
        height: 400px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .tabs-nav {
        flex-direction: column;
        margin: 0 auto;
        width: 50vw;
        gap: 30px;
    }

    .tab-btn {
        padding: 0px 15px 0px;
        font-size: 14px;
    }

    .certificates-grid,
    .certificates-grid-page {
        grid-template-columns: 1fr;
    }

    .project-images-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        margin: 10% auto;
        max-width: 95%;
    }
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .project-card-image {
        height: 180px;
    }
    
    .project-detail-title {
        font-size: 28px;
    }
    
    .project-detail-images {
        grid-template-columns: 1fr;
    }
    
    .project-detail-image {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .project-card-content {
        padding: 20px;
    }
    
    .project-card-title {
        font-size: 16px;
    }
    
    .project-detail-title {
        font-size: 24px;
    }
    
    .project-detail-image {
        height: 200px;
    }
}

/* Мобильные устройства (максимум 768px) */
@media (max-width: 768px) {
    .burger-menu-btn {
        display: flex;
    }
    
    .nav {
        display: none;
    }
    
    .header-contacts {
        display: none;
    }
    
    .logo h1 {
        font-size: 20px;
    }
}

/* Маленькие экраны (максимум 480px) */
@media (max-width: 480px) {
    .burger-menu-btn {
        width: 25px;
        height: 20px;
    }
    
    .burger-line {
        width: 25px;
        height: 2px;
    }
}