/* --- CSS VARIABLES --- */
        :root {
            /* Тема по умолчанию (Dark) */
            --bg-color: #080808;
            --text-main: #ffffff;
            --text-muted: #888888;
            --accent: #ccff00; /* Лимонный */
            --border-color: #333333;
            --card-hover: #1a1a1a;
            --header-bg: rgba(8, 8, 8, 0.85);
        }

        /* Класс для светлой темы */
        body.light-mode {
            --bg-color: #f4f4f4;
            --text-main: #111111;
            --text-muted: #555555;
            --accent: #445500; /* Темно-зеленый для лучшего контраста на белом */
            --border-color: #dcdcdc;
            --card-hover: #ffffff;
            --header-bg: rgba(244, 244, 244, 0.85);
        }

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

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            font-family: 'Inter', sans-serif;
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        a {
            text-decoration: none;
            color: inherit;
            cursor: pointer;
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }

        /* --- LANGUAGE TOGGLE LOGIC --- */
        /* По умолчанию скрываем армянский */
        [data-lang="am"] { display: none; }
        
        /* Когда у body есть класс lang-am: скрываем русский, показываем армянский */
        body.lang-am [data-lang="ru"] { display: none; }
        body.lang-am [data-lang="am"] { display: inline-block; }
        
        /* Исправление для блочных элементов */
        body.lang-am h1[data-lang="am"],
        body.lang-am h2[data-lang="am"],
        body.lang-am h3[data-lang="am"],
        body.lang-am p[data-lang="am"],
        body.lang-am div[data-lang="am"],
        body.lang-am span.project-cat[data-lang="am"] { display: block; }
        
        body.lang-am a.project-cat[data-lang="am"] { display: inline-block; }

        /* --- LAYOUT UTILITIES --- */
        .container {
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 120px 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* --- TYPOGRAPHY --- */
        h1, h2, h3 {
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.1;
        }

        .display-text {
            font-size: clamp(3rem, 8vw, 7rem);
            text-transform: uppercase;
        }

        .section-title {
            font-size: clamp(2rem, 4vw, 3.5rem);
            margin-bottom: 60px;
        }

        .text-lead {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 40px;
        }

        /* --- HEADER & NAV --- */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            padding: 20px 0;
            background: var(--header-bg);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            transition: background 0.3s ease, border-color 0.3s ease;
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-weight: 800;
            font-size: 1.5rem;
            letter-spacing: -0.05em;
            color: var(--text-main);
        }

        .logo span {
            color: var(--accent);
        }

        .nav-controls {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        nav ul {
            display: flex;
            gap: 40px;
        }

        nav a {
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        nav a:hover {
            color: var(--text-main);
        }

        /* Кнопки переключателей */
        .toggle-btn {
            background: none;
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 8px 16px;
            font-family: inherit;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            border-radius: 4px;
            transition: all 0.3s ease;
            text-transform: uppercase;
        }

        .toggle-btn:hover {
            border-color: var(--text-main);
            background-color: var(--text-main);
            color: var(--bg-color);
        }

        .toggle-btn.active {
            background-color: var(--accent);
            color: #000; /* Всегда черный текст на активном акценте */
            border-color: var(--accent);
        }

        /* Скрываем десктопное меню на мобильных для простоты демо */
        @media (max-width: 768px) {
            nav { display: none; }
        }

        /* --- HERO SECTION --- */
        .hero {
            height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero h1 {
            margin-bottom: 40px;
        }

        .hero-btn {
            display: inline-block;
            padding: 16px 32px;
            border: 1px solid var(--text-main);
            border-radius: 100px;
            font-size: 1rem;
            text-transform: uppercase;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .hero-btn:hover {
            background-color: var(--text-main);
            color: var(--bg-color);
        }

        .hero-bg {
            position: absolute;
            top: 50%;
            right: -10%;
            width: 50vw;
            height: 80vh;
            background: radial-gradient(circle, var(--accent) 0%, rgba(0,0,0,0) 70%);
            z-index: 1;
            filter: blur(80px);
            opacity: 0.15;
            pointer-events: none;
            transition: background 0.3s ease;
        }

        /* --- PORTFOLIO GRID --- */
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            grid-auto-rows: minmax(300px, auto);
            gap: 24px;
        }

        .project-card {
            position: relative;
            grid-column: span 6;
            overflow: hidden;
            cursor: pointer;
        }

        .project-card:nth-child(1) { grid-column: span 8; }
        .project-card:nth-child(2) { grid-column: span 4; }
        .project-card:nth-child(3) { grid-column: span 4; }
        .project-card:nth-child(4) { grid-column: span 4; }
        .project-card:nth-child(5) { grid-column: span 4; }

        .project-image-wrapper {
            width: 100%;
            height: 100%;
            overflow: hidden;
            position: relative;
        }

        .project-image-wrapper img {
            width: 100%;
            height: 100%;
            transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
            filter: grayscale(100%);
        }

        .project-card:hover .project-image-wrapper img {
            transform: scale(1.05);
            filter: grayscale(0%);
        }

        .project-info {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 30px;
            background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
            transform: translateY(20px);
            opacity: 0;
            transition: var(--transition);
        }

        .project-card:hover .project-info {
            transform: translateY(0);
            opacity: 1;
        }

        .project-cat {
            font-size: 0.8rem;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }

        .project-title {
            font-size: 1.5rem;
            font-weight: 600;
        }

        /* --- SERVICES --- */
        .services-list {
            display: flex;
            flex-direction: column;
            border-top: 1px solid var(--border-color);
        }

        .service-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 40px 0;
            border-bottom: 1px solid var(--border-color);
            transition: background 0.3s ease, padding 0.3s ease;
        }

        .service-item:hover {
            background-color: var(--card-hover);
            padding-left: 20px;
            padding-right: 20px;
        }

        .service-name {
            font-size: 2rem;
            font-weight: 600;
        }

        .service-desc {
            color: var(--text-muted);
            max-width: 400px;
            text-align: right;
        }

        /* --- MARQUEE --- */
        .marquee-container {
            width: 100%;
            overflow: hidden;
            background-color: var(--accent);
            color: #000; /* Текст всегда черный на ленте */
            padding: 20px 0;
            transform: rotate(-2deg) scale(1.05);
            margin: 80px 0;
        }

        .marquee-content {
            display: flex;
            gap: 40px;
            width: max-content;
            animation: scroll 20s linear infinite;
        }

        .marquee-text {
            font-size: 2rem;
            font-weight: 800;
            text-transform: uppercase;
            white-space: nowrap;
        }

        @keyframes scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* --- FOOTER --- */
        footer {
            padding: 100px 0 40px;
            text-align: center;
        }

        .footer-cta {
            font-size: clamp(2rem, 5vw, 4rem);
            font-weight: 800;
            margin-bottom: 60px;
            display: inline-block;
            border-bottom: 2px solid var(--accent);
            transition: color 0.3s ease;
        }
        
        .footer-cta:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 60px;
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
        }

        /* --- MOBILE --- */
        @media (max-width: 768px) {
            .display-text { font-size: 3.5rem; }
            .portfolio-grid { display: flex; flex-direction: column; }
            .service-item { flex-direction: column; align-items: flex-start; gap: 15px; }
            .service-desc { text-align: left; }
            .hero-bg { width: 100%; right: 0; opacity: 0.1; }
            .nav-controls { margin-left: auto; }
        }