:root {
            --primary: #00d4ff;
            --bg-dark: #121212;
            --bg-card: #000000;
            --text-light: #e0e0e0;
            --text-muted: #8a99a8;
            --glow: 0 0 15px rgba(0, 212, 255, 0.6);
            --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { overflow-x: hidden; }

        body {
            font-family: 'Roboto', sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }

        h1, h2, h3, .logo-text {
            font-family: 'Orbitron', sans-serif;
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        /* ── Navbar ── */
        header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    right: 0;
    min-height: 74px;
    opacity: 1;
    visibility: visible;
    transform: translateZ(0);
    z-index: 1000;
    background: #000000;
    transition: var(--transition);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

header.scrolled {
    padding: 5px 0;
    background: #000000;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
}

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo { display: flex; align-items: center; gap: 12px; }
        .logo img { height: 50px; filter: none; }
        .logo-text { font-size: 1.4rem; font-weight: 700; color: var(--primary); text-shadow: var(--glow); }
        .nav-links { display: flex; gap: 30px; }
        .nav-links a { font-size: 0.9rem; font-weight: 500; position: relative; padding: 5px 0; }
        .nav-links a::after {
            content: ''; position: absolute; bottom: 0; left: 0;
            width: 0; height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-links a.active { color: var(--primary); }
        .hamburger { display: none; cursor: pointer; font-size: 1.5rem; color: var(--primary); }

        /* ── Contact Page ── */
        .contact-page {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 110px 20px 60px;
            background:
                radial-gradient(ellipse at top, rgba(0,212,255,0.06) 0%, transparent 50%),
                var(--bg-dark);
        }

        .contact-wrapper {
            width: 100%;
            max-width: 600px;
        }

        /* Heading */
        .contact-heading {
            text-align: center;
            margin-bottom: 40px;
        }

        .contact-heading h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            color: var(--primary);
            text-shadow: var(--glow);
            letter-spacing: 4px;
            margin-bottom: 12px;
        }

        .contact-heading p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.6;
        }

        /* Form Card */
        .form-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 40px 36px;
            margin-bottom: 32px;
        }

        .field-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .field-group { margin-bottom: 18px; }

        .field-group label {
            display: block;
            margin-bottom: 7px;
            font-family: 'Orbitron', sans-serif;
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--primary);
        }

        .field-group input,
        .field-group textarea {
            width: 100%;
            padding: 13px 16px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(0, 212, 255, 0.12);
            border-radius: 10px;
            color: var(--text-light);
            font-family: 'Roboto', sans-serif;
            font-size: 0.95rem;
            transition: var(--transition);
            -webkit-user-select: text;
            user-select: text;
        }

        .field-group input::placeholder,
        .field-group textarea::placeholder { color: #444; }

        .field-group input:focus,
        .field-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(0, 212, 255, 0.04);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
        }

        .field-group textarea { resize: none; }

        /* Button */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            width: 100%;
            padding: 15px 30px;
            border-radius: 10px;
            border: 2px solid transparent;
            font-family: 'Orbitron', sans-serif;
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-primary {
            background: var(--primary);
            color: #0a0a0a;
            box-shadow: var(--glow);
        }

        .btn-primary:hover {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 0 25px rgba(0, 212, 255, 0.5);
            transform: translateY(-2px);
        }

        /* Bottom Links */
        .contact-bottom {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .bottom-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-card);
            color: var(--text-muted);
            font-size: 0.88rem;
            padding: 8px 14px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .bottom-link i { color: var(--primary); font-size: 0.85rem; }

        .bottom-link:hover {
            color: var(--text-light);
            border-color: rgba(0, 212, 255, 0.2);
            background: rgba(0, 212, 255, 0.05);
        }

        .bottom-social {
            display: flex;
            gap: 8px;
        }

        .bottom-social a {
            width: 34px; height: 34px;
            display: flex; align-items: center; justify-content: center;
            border-radius: 8px;
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .bottom-social a:hover {
            color: var(--primary);
            border-color: rgba(0, 212, 255, 0.25);
            background: rgba(0, 212, 255, 0.08);
            transform: translateY(-2px);
        }

        /* ── Footer ── */
        footer {
            background-color: #050505;
            padding: 55px 0 20px;
            position: relative;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px; margin-bottom: 30px;
        }
        .footer-col h4 { color: var(--primary); margin-bottom: 30px; font-size: 1.2rem; }
        .footer-links li { margin-bottom: 15px; }
        .footer-links a:hover { color: var(--primary); padding-left: 10px; }
        .social-links { display: flex; gap: 20px; margin-top: 20px; }
        .social-links a {
            width: 45px; height: 45px;
            background: rgba(255, 255, 255, 0.03);
            display: flex; align-items: center; justify-content: center;
            border-radius: 50%; font-size: 1.3rem;
        }
        .social-links a:hover {
            background: var(--primary); color: var(--bg-dark);
            box-shadow: var(--glow); transform: translateY(-5px);
        }
        .copyright {
            text-align: center; padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.9rem; color: #555;
        }

        /* ── Responsive ── */
        @media (max-width: 768px) {
            nav { min-height: 72px; }
            .logo img { height: 42px; flex-shrink: 0; }
            .logo-text { font-size: 1rem; line-height: 1.2; }

            .nav-links {
                display: flex;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(10, 10, 10, 0.98);
                flex-direction: column;
                gap: 0;
                max-height: 0;
                opacity: 0;
                overflow: hidden;
                padding: 0 24px;
                pointer-events: none;
                text-align: center;
                transform: translateY(-16px);
                border-bottom: 1px solid var(--primary);
                backdrop-filter: blur(20px);
                box-shadow: 0 16px 30px rgba(0, 0, 0, 0.45);
                transition: max-height 0.35s ease, opacity 0.35s ease, transform 0.35s ease;
            }

            .nav-links.active {
                max-height: 420px;
                opacity: 1;
                padding: 26px 24px;
                pointer-events: auto;
                transform: translateY(0);
            }

            .nav-links li {
                width: 100%;
                opacity: 0;
                transform: translateY(-8px);
                transition: opacity 0.28s ease 0.05s, transform 0.28s ease 0.05s;
            }

            .nav-links.active li {
                opacity: 1;
                transform: translateY(0);
            }

            .nav-links a {
                display: block;
                padding: 14px 0;
            }

            .hamburger {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 44px;
                height: 44px;
            }

            .contact-page { padding: 100px 16px 40px; }
            .form-card { padding: 28px 20px; }
            .field-row { grid-template-columns: 1fr; gap: 0; }
            .contact-bottom { gap: 12px; }
            .bottom-link { font-size: 0.8rem; padding: 6px 10px; }
        }