:root {
            --bg-color: #0b0f19;
            --card-bg: #111827;
            --accent: #3b82f6;
            --text-main: #f3f4f6;
            --text-muted: #9ca3af;
            --border: #1f2937;
        }

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

        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            line-height: 1.45;
            padding: 15px;
        }

        .cv-container {
            width: 100%;
            max-width: 210mm;
            min-height: 292mm;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 35px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .cv-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 12px;
            margin-bottom: 15px;
        }

        .cv-title h1 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .cv-title p {
            font-size: 1rem;
            color: var(--accent);
            font-weight: 600;
            margin-top: 2px;
        }

        .cv-contacts {
            text-align: right;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .cv-section {
            margin-bottom: 14px;
        }

        .cv-section h2 {
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            color: var(--accent);
            border-bottom: 1px solid var(--border);
            padding-bottom: 3px;
            margin-bottom: 6px;
        }

        .cv-text {
            font-size: 0.88rem;
            color: var(--text-muted);
            text-align: justify;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .skill-category {
            font-size: 0.85rem;
        }

        .skill-category strong {
            color: #fff;
            display: block;
            margin-bottom: 2px;
        }

        .tags-inline {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .exp-item {
            margin-bottom: 8px;
        }

        .exp-header {
            display: flex;
            justify-content: space-between;
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff;
        }

        .exp-date {
            font-size: 0.78rem;
            color: var(--accent);
        }

        .exp-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 1px;
        }

        .privacy-text {
            font-size: 0.7rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 10px;
            border-top: 1px solid var(--border);
            padding-top: 8px;
            font-style: italic;
        }

        .download-bar {
            text-align: center;
            margin-top: 20px;
        }

        .btn-download {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.2s;
        }

        .btn-download:hover {
            background-color: #2563eb;
        }

        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(11, 15, 25, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 5%;
        }

        .logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-main);
            font-family: 'Fira Code', monospace;
        }

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

        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
            align-items: center;
        }

        nav a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s;
        }

        nav a:hover, nav a.active {
            color: var(--accent);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 7rem 5% 4rem 5%;
        }

        .hero {
            text-align: center;
            padding: 3rem 1rem 4rem 1rem;
            border-bottom: 1px solid var(--border);
            margin-bottom: 4rem;
        }

        .hero h1 {
            font-size: clamp(2.2rem, 4vw, 3.5rem);
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: -1px;
        }

        .hero h1 span {
            color: var(--accent);
        }

        .hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 2rem auto;
        }

        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .hero-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.85rem 1.8rem;
            background-color: var(--accent);
            color: white;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            font-size: 1rem;
            box-shadow: 0 0 25px var(--accent-glow);
            transition: all 0.3s ease;
        }

        .hero-btn:hover {
            background-color: #2563eb;
            transform: translateY(-2px);
        }

        .hero-btn-outline {
            background-color: transparent;
            border: 1px solid var(--border);
            color: var(--text-main);
            box-shadow: none;
        }

        .hero-btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: transparent;
        }

        section {
            margin-bottom: 5rem;
        }

        section h2 {
            font-size: 2rem;
            margin-bottom: 2rem;
            position: relative;
            display: inline-block;
        }

        section h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 50%;
            height: 3px;
            background-color: var(--accent);
            border-radius: 2px;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .about-text p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 1.2rem;
        }

        .skills-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 1rem;
        }

        .tag {
            background: rgba(59, 130, 246, 0.1);
            color: var(--accent);
            padding: 0.4rem 0.9rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-family: 'Fira Code', monospace;
            border: 1px solid rgba(59, 130, 246, 0.2);
        }

        .project-tabs {
            display: flex;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .tab-btn {
            background: var(--card-bg);
            border: 1px solid var(--border);
            color: var(--text-muted);
            padding: 0.6rem 1.2rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--accent);
            color: white;
            border-color: var(--accent);
        }

        .project-category {
            display: none;
        }

        .project-category.active {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .project-card {
            background-color: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.3s, border-color 0.3s;
        }

        .project-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
        }

        .project-media {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: #000;
            border-bottom: 1px solid var(--border);
        }

        .project-content {
            padding: 1.5rem;
        }

        .project-content h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }

        .project-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: var(--accent);
            color: white;
            border-radius: 6px;
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 600;
            transition: background 0.2s;
        }

        .btn:hover {
            background: #2563eb;
        }

        .contact-box {
            background-color: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 3rem;
            text-align: center;
        }

        .contact-socials {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }

        .social-icon {
            font-size: 1.5rem;
            color: var(--text-muted);
            background: var(--bg-color);
            border: 1px solid var(--border);
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.3s;
            text-decoration: none;
        }

        .social-icon:hover {
            color: var(--accent);
            border-color: var(--accent);
            transform: translateY(-3px);
        }

        footer {
            border-top: 1px solid var(--border);
            text-align: center;
            padding: 2.5rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        @media(max-width: 768px) {
            .about-grid {
                grid-template-columns: 1fr;
            }
        }

        .youtube-wrapper {
            position: relative;
            width: 100%;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
            background: #000;
            border-bottom: 1px solid var(--border);
        }

        .youtube-wrapper iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }