:root {
        --primary-color: #2c3e50;
        --secondary-color: #3498db;
        --accent-color: #2980b9;
        --light-gray: #f8f9fa;
        --medium-gray: #e9ecef;
        --dark-gray: #343a40;
        --text-color: #333;
        --text-light: #6c757d;
        --border-radius: 8px;
        --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        --transition: all 0.3s ease;
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', 'Open Sans', sans-serif;
        margin: 0;
        padding: 0;
        line-height: 1.6;
        color: #2c3e50;
        position: relative;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        overflow-x: hidden;
        transition: background-image 0.5s ease;
    }

    /* ===== БАЗОВЫЙ ФОН (для всех страниц) ===== */
    body {
        background-color: #0a1a2f; /* Глубокий тёмно-синий базовый цвет */
        background-image: 
            /* Большое размытое пятно вверху слева (голубое) */
            radial-gradient(circle at 10% 20%, rgba(0, 180, 255, 0.2) 0%, transparent 35%),
            /* Большое размытое пятно в центре справа (фиолетовое) */
            radial-gradient(circle at 90% 50%, rgba(120, 40, 200, 0.2) 0%, transparent 45%),
            /* Маленькое яркое пятно внизу (розовое) */
            radial-gradient(circle at 70% 90%, rgba(255, 100, 150, 0.15) 0%, transparent 30%),
            /* Едва заметное пятно для глубины (белое) */
            radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 25%),
            /* Легкая диагональная текстура (шум) */
            repeating-linear-gradient(45deg, 
                rgba(255, 255, 255, 0.02) 0px, 
                rgba(255, 255, 255, 0.02) 2px, 
                transparent 2px, 
                transparent 8px);
    }

    /* ===== УНИКАЛЬНЫЕ ФОНЫ ДЛЯ РАЗНЫХ СТРАНИЦ ===== */
    
    /* Главная страница - холодные тона */
    .home-page body {
        background-image: 
            radial-gradient(circle at 15% 30%, rgba(0, 200, 255, 0.25) 0%, transparent 40%),
            radial-gradient(circle at 85% 60%, rgba(50, 100, 255, 0.2) 0%, transparent 50%),
            radial-gradient(circle at 40% 80%, rgba(0, 150, 200, 0.15) 0%, transparent 35%),
            radial-gradient(circle at 95% 20%, rgba(100, 200, 255, 0.2) 0%, transparent 30%),
            repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 2px, transparent 2px, transparent 8px);
    }

    /* Страница опыта - тёплые тона */
    .experience-page body {
        background-image: 
            radial-gradient(circle at 20% 20%, rgba(255, 150, 50, 0.2) 0%, transparent 40%),
            radial-gradient(circle at 80% 70%, rgba(200, 100, 50, 0.2) 0%, transparent 45%),
            radial-gradient(circle at 30% 85%, rgba(255, 120, 0, 0.15) 0%, transparent 35%),
            radial-gradient(circle at 90% 30%, rgba(255, 180, 100, 0.15) 0%, transparent 40%),
            repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 2px, transparent 2px, transparent 8px);
    }

    /* Страница проектов/портфолио - зелёные тона */
    .projects-page body {
        background-image: 
            radial-gradient(circle at 10% 40%, rgba(50, 200, 100, 0.2) 0%, transparent 40%),
            radial-gradient(circle at 75% 20%, rgba(30, 180, 150, 0.2) 0%, transparent 45%),
            radial-gradient(circle at 90% 80%, rgba(20, 160, 80, 0.15) 0%, transparent 35%),
            radial-gradient(circle at 40% 60%, rgba(100, 220, 150, 0.15) 0%, transparent 40%),
            repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 2px, transparent 2px, transparent 8px);
    }

    /* Страница сертификатов - фиолетовые тона */
    .certificates-page body {
        background-image: 
            radial-gradient(circle at 15% 25%, rgba(180, 100, 255, 0.2) 0%, transparent 40%),
            radial-gradient(circle at 80% 70%, rgba(140, 50, 220, 0.2) 0%, transparent 45%),
            radial-gradient(circle at 45% 85%, rgba(200, 120, 255, 0.15) 0%, transparent 35%),
            radial-gradient(circle at 70% 30%, rgba(160, 80, 200, 0.15) 0%, transparent 40%),
            repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 2px, transparent 2px, transparent 8px);
    }

    /* Страница контактов - оранжево-розовые тона */
    .contacts-page body {
        background-image: 
            radial-gradient(circle at 25% 30%, rgba(255, 120, 100, 0.2) 0%, transparent 40%),
            radial-gradient(circle at 70% 60%, rgba(255, 80, 150, 0.2) 0%, transparent 45%),
            radial-gradient(circle at 85% 25%, rgba(255, 150, 50, 0.15) 0%, transparent 35%),
            radial-gradient(circle at 40% 80%, rgba(255, 100, 200, 0.15) 0%, transparent 40%),
            repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 2px, transparent 2px, transparent 8px);
    }

    /* Страница обо мне - смешанные тона */
    .about-page body {
        background-image: 
            radial-gradient(circle at 20% 30%, rgba(0, 200, 255, 0.2) 0%, transparent 35%),
            radial-gradient(circle at 80% 60%, rgba(255, 100, 200, 0.2) 0%, transparent 40%),
            radial-gradient(circle at 50% 85%, rgba(100, 255, 150, 0.15) 0%, transparent 30%),
            radial-gradient(circle at 90% 20%, rgba(255, 200, 50, 0.15) 0%, transparent 35%),
            repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 2px, transparent 2px, transparent 8px);
    }

    html {
        scroll-behavior: smooth;
    }

    /* ВСЕ ЗАГОЛОВКИ ТЕПЕРЬ БЕЛЫЕ ДЛЯ ЧИТАЕМОСТИ */
    h1, h2, h3, .page-header h1, .experience-section h2, .project-title {
        color: #ffffff !important;
    }

    /* Специально для заголовков на белых карточках оставляем тёмный цвет */
    .project-card h3, .project-card .project-title,
    .skill-category h4, .certification-section h3 {
        color: var(--primary-color) !important;
    }

    /* ШАПКА САЙТА */
    header {
        background-color: var(--primary-color);
        color: white;
        padding: 0;
        width: 100%;
        z-index: 1002;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        position: sticky;  
        top: 0;            
    }

    .header-content {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 20px;
        max-width: 1200px;
        margin: 0 auto;
        height: 70px;
    }

    .logo-container {
        display: flex;
        align-items: center;
        gap: 10px;
        z-index: 1002;
    }

    .logo {
        height: 40px;
        width: auto;
        transition: var(--transition);
    }

    .logo-text {
        font-weight: 700;
        font-size: 1.1rem;
        color: white;
        font-family: 'Open Sans', sans-serif;
        white-space: nowrap;
    }

    .logo:hover {
        transform: scale(1.05);
    }

    nav {
        flex: 1;
        display: flex;
        justify-content: center;
    }

    .nav-menu {
        list-style-type: none;
        margin: 0;
        padding: 0;
        display: flex;
        gap: 25px;
        align-items: center;
    }

    .nav-menu li {
        margin: 0;
    }

    .nav-menu li a {
        color: white;
        text-decoration: none;
        font-weight: 700;
        padding: 25px 0;
        display: block;
        position: relative;
        transition: var(--transition);
        border-bottom: none;
        font-size: 0.95rem;
        white-space: nowrap;
    }

    .nav-menu li a::after {
        content: '';
        position: absolute;
        bottom: 20px;
        left: 0;
        width: 0;
        height: 2px;
        background-color: var(--secondary-color);
        transition: width 0.3s ease;
    }

    .nav-menu li a:hover::after {
        width: 100%;
    }

    .nav-menu li a:hover {
        color: var(--secondary-color);
    }

    /* МОБИЛЬНОЕ МЕНЮ (кнопка) */
    .mobile-menu-toggle {
        display: none;
        background: none;
        border: none;
        color: white;
        font-size: 1.5rem;
        cursor: pointer;
        padding: 10px;
        z-index: 1002;
        font-weight: 700;
    }

    /* ОВЕРЛЕЙ ДЛЯ МЕНЮ */
    .menu-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 999;
        backdrop-filter: blur(3px);
    }

    .menu-overlay.active {
        display: block;
    }

    /* ОСНОВНОЙ КОНТЕНТ */
    main {
        flex: 1;
        max-width: 1200px;
        margin: 0 auto;
        padding: 30px 20px 60px;
        width: 100%;
        position: relative;
        z-index: 2;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    /* ЗАГОЛОВОК СТРАНИЦЫ */
    .page-header {
        text-align: center;
        margin-bottom: 40px;
        padding-top: 20px;
    }

    .page-header h1 {
        font-size: 36px;
        margin-bottom: 10px;
        font-family: 'Open Sans', sans-serif;
        font-weight: bold;
        text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    }

    .page-description {
        font-size: 18px;
        color: rgba(255, 255, 255, 0.9);
        max-width: 800px;
        margin: 0 auto;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    }

    /* ПРОФИЛЬ */
    .profile-section {
        background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
        border-radius: var(--border-radius);
        padding: 40px;
        margin: 40px 0;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        display: flex;
        align-items: center;
        gap: 40px;
        transition: var(--transition);
    }

    .profile-section:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    }

    .profile-image {
        flex-shrink: 0;
    }

    .profile-image img {
        width: 150px;
        height: 150px;
        border-radius: 50%;
        border: 4px solid white;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        transition: var(--transition);
        object-fit: cover;
    }

    .profile-image img:hover {
        transform: scale(1.03);
    }

    .profile-info {
        flex: 1;
    }

    .profile-info h1 {
        color: var(--primary-color) !important;
        margin-bottom: 10px;
    }

    .profile-info h3 {
        color: var(--accent-color) !important;
        margin-bottom: 15px;
    }

    /* ОБЩИЕ СЕКЦИИ */
    section {
        padding: 50px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        width: 100%;
    }

    section:last-of-type {
        border-bottom: none;
    }

    section h2 {
        font-size: 2rem;
        color: #ffffff !important;
        margin: 0 0 20px 0;
        padding-bottom: 10px;
        border-bottom: 2px solid rgba(255, 255, 255, 0.2);
        font-weight: 600;
        font-family: 'Open Sans', sans-serif;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }

    /* КАРТОЧКИ */
    .card {
        background: white;
        border-radius: var(--border-radius);
        padding: 30px;
        margin: 30px 0;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        transition: var(--transition);
        border-left: 4px solid var(--secondary-color);
        width: 100%;
    }

    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    }

    .education-item {
        margin-bottom: 25px;
        padding-left: 20px;
        border-left: 3px solid var(--medium-gray);
    }

    .education-item:hover {
        border-left-color: var(--secondary-color);
    }

    .education-item:last-child {
        margin-bottom: 0;
    }

    .education-item h4 {
        color: var(--primary-color);
        margin-bottom: 10px;
    }

    /* НАВЫКИ */
    .skills-list {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 20px;
        margin: 20px 0;
        width: 100%;
    }

    .skill-category {
        background: white;
        border-radius: var(--border-radius);
        padding: 25px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    .skill-category:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
        transition: var(--transition);
    }

    .skill-category h4 {
        color: var(--primary-color) !important;
        margin-bottom: 15px;
        font-size: 1.2rem;
        border-bottom: 2px solid var(--medium-gray);
        padding-bottom: 8px;
    }

    .skill-category ul {
        list-style-type: none;
        padding: 0;
        margin: 0;
    }

    .skill-category li {
        padding: 5px 0 5px 20px;
        position: relative;
        color: var(--text-color);
    }

    .skill-category li::before {
        content: "•";
        color: var(--secondary-color);
        font-weight: bold;
        position: absolute;
        left: 0;
    }

    /* ОПЫТ */
    .experience-card {
        background: white;
        border-radius: var(--border-radius);
        padding: 25px;
        margin: 25px 0;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        border-left: 4px solid var(--accent-color);
        transition: var(--transition);
        width: 100%;
    }

    .experience-card:hover {
        transform: translateX(5px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    }

    .company-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: 15px;
        flex-wrap: wrap;
        gap: 10px;
    }

    .company-name {
        font-size: 1.3rem;
        font-weight: 600;
        color: var(--primary-color);
    }

    .dates {
        color: var(--text-light);
        font-size: 0.9rem;
        background: var(--light-gray);
        padding: 5px 10px;
        border-radius: 20px;
        white-space: nowrap;
    }

    .experience-card ul {
        list-style: none;
        margin: 15px 0;
        padding: 0;
    }

    .experience-card ul li {
        padding: 5px 0 5px 25px;
        position: relative;
        color: var(--text-color);
    }

    .experience-card ul li:before {
        content: "•";
        color: var(--primary-color);
        font-size: 20px;
        position: absolute;
        left: 0;
        top: 3px;
    }

    .experience-card a {
        color: var(--secondary-color);
        text-decoration: none;
    }

    .experience-card a:hover {
        color: var(--accent-color);
        text-decoration: underline;
    }

    /* ПОРТФОЛИО */
    .portfolio-links {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
        margin: 30px 0;
        width: 100%;
    }

    .portfolio-link {
        background: white;
        padding: 25px;
        border-radius: var(--border-radius);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        transition: var(--transition);
        text-align: center;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .portfolio-link:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
        background: linear-gradient(135deg, white 0%, #f8f9fa 100%);
    }

    .portfolio-link h3 {
        margin: 0;
        font-size: 1.2rem;
        color: var(--primary-color) !important;
    }

    .portfolio-link p {
        margin: 0;
        font-size: 0.95rem;
        color: var(--text-light);
    }

    .portfolio-link a {
        word-break: break-all;
        color: var(--secondary-color);
        text-decoration: none;
    }

    .portfolio-link a:hover {
        color: var(--accent-color);
        text-decoration: underline;
    }

    /* СЕРТИФИКАТЫ */
    .certificates {
        display: flex;
        flex-wrap: wrap;
        gap: 15px;
        margin: 20px 0;
        width: 100%;
    }

    .certificate-link {
        background: white;
        padding: 15px 25px;
        border-radius: var(--border-radius);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
        transition: var(--transition);
        border: 1px solid var(--medium-gray);
        flex: 1 1 auto;
        min-width: 200px;
        max-width: calc(33.333% - 10px);
        text-align: center;
        color: var(--primary-color);
        font-weight: 500;
        white-space: normal;
        word-wrap: break-word;
        text-decoration: none;
    }

    .certificate-link:hover {
        background: var(--light-gray);
        border-color: var(--secondary-color);
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        text-decoration: none;
        color: var(--primary-color);
    }

    /* ПОДВАЛ */
    footer {
        background: var(--primary-color);
        color: white;
        padding: 50px 0 30px;
        margin-top: 50px;
        width: 100%;
        position: relative;
        z-index: 2;
    }

    .footer-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .footer-sections {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 40px;
        margin-bottom: 40px;
    }

    .footer-section h3 {
        color: white;
        margin-top: 0;
        font-size: 1.2rem;
        border-bottom: 2px solid var(--secondary-color);
        padding-bottom: 10px;
        display: inline-block;
        font-weight: 600;
    }

    .footer-section p {
        color: rgba(255, 255, 255, 0.9);
        margin-bottom: 10px;
    }

    .contact-info p {
        margin-bottom: 8px;
    }

    /* КОПИРАЙТ */
    .copyright {
        text-align: center;
        padding-top: 30px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        color: white;
        font-size: 0.95rem;
        font-weight: 500;
    }

    .copyright p {
        color: white !important;
        margin: 0;
    }

    /* КНОПКИ ПРОКРУТКИ */
    .scroll-buttons {
        position: fixed;
        right: 30px;
        bottom: 30px;
        z-index: 1001;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .scroll-button {
        background-color: var(--primary-color);
        border: none;
        width: 45px;
        height: 45px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        color: white;
        text-decoration: none;
        cursor: pointer;
        transition: var(--transition);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .scroll-button:hover {
        background-color: var(--secondary-color);
        transform: scale(1.1);
    }

    /* ССЫЛКИ */
    a {
        color: var(--secondary-color);
        text-decoration: none;
        transition: var(--transition);
    }

    a:hover {
        color: var(--accent-color);
        text-decoration: underline;
    }

    /* АНИМАЦИЯ */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .fade-in {
        animation: fadeInUp 0.6s ease forwards;
    }

    /* ВСПОМОГАТЕЛЬНЫЕ КЛАССЫ */
    .text-center {
        text-align: center;
    }

    .mb-20 {
        margin-bottom: 20px;
    }

    .mb-30 {
        margin-bottom: 30px;
    }

    .mt-40 {
        margin-top: 40px;
    }

    .pt-40 {
        padding-top: 40px;
    }

    .pb-40 {
        padding-bottom: 40px;
    }

    .highlight {
        color: var(--accent-color);
        font-weight: bold;
    }

    /* СКРЫТЫЕ ЯКОРЯ ДЛЯ ПРОКРУТКИ */
    #top, #bottom {
        position: absolute;
        visibility: hidden;
    }

    #top {
        top: 0;
    }

    #bottom {
        bottom: 0;
    }

    /* ========== МОБИЛЬНЫЕ СТИЛИ ========== */

    /* Планшеты (до 1024px) */
    @media (max-width: 1024px) {
        .nav-menu {
            gap: 15px;
        }

        .nav-menu li a {
            font-size: 0.9rem;
            padding: 25px 0;
        }

        .logo-text {
            font-size: 1rem;
        }

        .container {
            padding: 0 25px;
        }

        .certificate-link {
            max-width: calc(50% - 7.5px);
        }
    }

    /* Мобильные устройства (до 768px) */
    @media (max-width: 768px) {
        /* ШАПКА */
        .header-content {
            height: auto;
            min-height: 60px;
            padding: 8px 15px;
        }

        .mobile-menu-toggle {
            display: block;
            font-size: 1.8rem;
        }

        .logo {
            height: 35px;
        }

        .logo-text {
            font-size: 0.95rem;
            max-width: 150px;
            white-space: normal;
            line-height: 1.2;
        }

        /* МЕНЮ (slide-out) */
        nav {
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 300px;
            height: 100vh;
            background-color: var(--primary-color);
            padding: 80px 20px 30px;
            transition: right 0.3s ease;
            z-index: 1001;
            box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
            justify-content: flex-start;
            overflow-y: auto;
        }

        nav.active {
            right: 0;
        }

        .nav-menu {
            flex-direction: column;
            align-items: flex-start;
            gap: 5px;
            width: 100%;
        }

        .nav-menu li {
            width: 100%;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .nav-menu li:last-child {
            border-bottom: none;
        }

        .nav-menu li a {
            padding: 15px 0;
            font-size: 1.1rem;
            white-space: normal;
            width: 100%;
            text-align: left;
        }

        .nav-menu li a::after {
            bottom: 10px;
        }

        /* ОСНОВНОЙ КОНТЕНТ */
        main {
            padding: 20px 15px 40px;
        }

        .container {
            padding: 0 15px;
        }

        /* ЗАГОЛОВКИ */
        .page-header {
            margin-bottom: 30px;
            padding-top: 10px;
        }

        .page-header h1 {
            font-size: 28px;
        }

        .page-description {
            font-size: 16px;
            padding: 0 10px;
        }

        section h2 {
            font-size: 1.6rem;
            margin: 30px 0 15px 0;
        }

        /* ПРОФИЛЬ */
        .profile-section {
            flex-direction: column;
            text-align: center;
            padding: 25px 15px;
            margin: 30px 0;
            gap: 20px;
        }

        .profile-image img {
            width: 120px;
            height: 120px;
        }

        .profile-info h1 {
            font-size: 2rem;
        }

        .profile-info h3 {
            font-size: 1.3rem;
        }

        /* КАРТОЧКИ */
        .card {
            padding: 20px;
            margin: 20px 0;
        }

        .experience-card {
            padding: 20px;
            margin: 20px 0;
        }

        .experience-card:hover {
            transform: translateX(3px);
        }

        .company-header {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }

        .dates {
            align-self: flex-start;
            white-space: normal;
        }

        /* СЕТКИ */
        .skills-list,
        .portfolio-links {
            grid-template-columns: 1fr;
            gap: 15px;
        }

        .skill-category {
            padding: 20px;
        }

        .skill-category h4 {
            font-size: 1.1rem;
        }

        .portfolio-link {
            padding: 20px;
        }

        /* СЕРТИФИКАТЫ */
        .certificates {
            flex-direction: column;
            gap: 12px;
        }

        .certificate-link {
            max-width: 100%;
            width: 100%;
            min-width: auto;
            padding: 12px 20px;
        }

        /* ПОДВАЛ */
        footer {
            padding: 40px 0 20px;
            margin-top: 40px;
        }

        .footer-sections {
            grid-template-columns: 1fr;
            gap: 30px;
        }

        .footer-section {
            text-align: center;
        }

        .footer-section h3 {
            font-size: 1.1rem;
            margin-bottom: 15px;
            width: 100%;
            text-align: center;
        }

        .footer-section p {
            font-size: 14px;
        }

        .contact-info p {
            font-size: 14px;
            word-break: break-word;
        }

        /* КНОПКИ ПРОКРУТКИ */
        .scroll-buttons {
            right: 15px;
            bottom: 15px;
            gap: 8px;
        }

        .scroll-button {
            width: 40px;
            height: 40px;
            font-size: 16px;
        }
    }

    /* Маленькие мобильные (до 480px) */
    @media (max-width: 480px) {
        .header-content {
            min-height: 55px;
        }

        .logo {
            height: 30px;
        }

        .logo-text {
            font-size: 0.85rem;
            max-width: 120px;
        }

        .mobile-menu-toggle {
            font-size: 1.5rem;
        }

        .page-header h1 {
            font-size: 24px;
        }

        .profile-info h1 {
            font-size: 1.8rem;
        }

        .profile-info h3 {
            font-size: 1.2rem;
        }

        section h2 {
            font-size: 1.4rem;
        }

        .card,
        .experience-card,
        .skill-category,
        .portfolio-link {
            padding: 15px;
        }

        .company-name {
            font-size: 1.2rem;
        }

        .dates {
            font-size: 0.85rem;
        }

        .certificate-link {
            padding: 10px 15px;
            font-size: 0.9rem;
        }

        .footer-sections {
            gap: 20px;
        }

        .copyright {
            font-size: 0.85rem;
            padding-top: 20px;
        }

        .scroll-buttons {
            right: 10px;
            bottom: 10px;
        }

        .scroll-button {
            width: 35px;
            height: 35px;
            font-size: 14px;
        }
    }

    /* Очень маленькие экраны (до 360px) */
    @media (max-width: 360px) {
        .logo-text {
            display: none;
        }

        .logo {
            height: 30px;
        }

        .mobile-menu-toggle {
            font-size: 1.3rem;
        }

        .page-header h1 {
            font-size: 22px;
        }

        .profile-info h1 {
            font-size: 1.6rem;
        }

        section h2 {
            font-size: 1.3rem;
        }

        .profile-section {
            padding: 15px 10px;
        }

        .profile-image img {
            width: 90px;
            height: 90px;
        }
    }