:root {
            --primary: #0f172a;      
            --secondary: #0ea5e9;    
            --bg-light: #f8fafc;
            --white: #ffffff;
            --text-main: #334155;
            --text-muted: #64748b;
        }

        * {
            margin: 0; padding: 0; box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        body {
            background-color: var(--bg-light); color: var(--text-main);
            line-height: 1.6; display: flex; flex-direction: column; min-height: 100vh;
        }

        /* NAVIGATION */
        nav {
            background-color: var(--white); box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            padding: 1.2rem 5%; display: flex; justify-content: space-between;
            align-items: center; position: sticky; top: 0; z-index: 100;
        }

        .logo {
            font-size: 1.5rem; font-weight: 700; color: var(--primary);
            cursor: pointer; letter-spacing: -0.5px;
        }

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

        .nav-links { display: flex; gap: 2rem; }
        .nav-links button {
            background: none; border: none; font-size: 1rem; font-weight: 600;
            color: var(--text-muted); cursor: pointer; transition: color 0.3s;
        }
        .nav-links button:hover, .nav-links button.active { color: var(--secondary); }

        /* PAGES */
        .page { display: none; animation: fadeIn 0.4s ease-in-out; flex: 1; }
        .page.active { display: block; }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .section-header {
            text-align: center; padding: 4rem 5% 3rem; max-width: 800px; margin: 0 auto;
        }
        .section-header h2 { font-size: 2.8rem; color: var(--primary); margin-bottom: 1rem; line-height: 1.2; }
        .section-header p { font-size: 1.1rem; color: var(--text-muted); }

        .btn {
            padding: 1rem 2rem; font-size: 1.1rem; font-weight: 600; border: none;
            border-radius: 8px; cursor: pointer; transition: all 0.3s;
        }
        .btn-primary {
            background-color: var(--secondary); color: var(--white);
            box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
        }
        .btn-primary:hover { background-color: #0284c7; transform: translateY(-2px); }

        /* HOME */
        .hero {
            display: flex; flex-direction: column; align-items: center; justify-content: center;
            text-align: center; padding: 8rem 5%; 
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(14, 165, 233, 0.6) 100%), 
                        url('images/hero-bg.png') center/cover no-repeat;
            min-height: 85vh;
            color: var(--white);
        }
        .hero h1 { font-size: 4rem; color: var(--white); margin-bottom: 1.5rem; max-width: 900px; line-height: 1.1; letter-spacing: -1px; }
        .hero p { font-size: 1.25rem; color: var(--white); max-width: 700px; margin-bottom: 2.5rem; }

        /* ABOUT */
        .about-container { max-width: 800px; margin: 0 auto; padding: 0 5% 5rem; }
        .about-content { background: var(--white); padding: 3rem; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.05); }
        .about-content p { font-size: 1.1rem; margin-bottom: 1.5rem; color: var(--text-main); }
        
        .team-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-top: 2rem; }
        .team-member h3 { color: var(--primary); font-size: 1.3rem; }
        .team-member h4 { color: var(--secondary); font-size: 0.9rem; margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 1px; }

        /* PORTFOLIO */
        .portfolio-grid {
            display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 2.5rem; padding: 0 5% 5rem; max-width: 1400px; margin: 0 auto;
        }
        .card { background: var(--white); border-radius: 12px; overflow: hidden; box-shadow: 0 10px 25px rgba(0,0,0,0.05); transition: transform 0.3s; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 15px 35px rgba(0,0,0,0.1); }
        
        .video-wrapper { position: relative; padding-bottom: 56.25%; height: 0; background: #111; }
        .video-wrapper iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }
        
        .card-content { padding: 1.8rem; }
        .card-content h3 { color: var(--primary); font-size: 1.4rem; margin-bottom: 0.5rem; }
        .animator-credit { display: inline-block; background-color: #e0f2fe; color: #0369a1; padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.85rem; font-weight: 600; margin-bottom: 1rem; }

        /* CONTACT */
        .contact-container { max-width: 650px; margin: 0 auto; padding: 0 5% 5rem; }
        .contact-form { background: var(--white); padding: 3rem; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.05); display: flex; flex-direction: column; gap: 1.5rem; }
        .form-group { display: flex; flex-direction: column; gap: 0.5rem; }
        .form-group label { font-weight: 600; color: var(--primary); }
        .form-group input, .form-group textarea { padding: 0.9rem; border: 1px solid #cbd5e1; border-radius: 6px; font-size: 1rem; background-color: #f8fafc; }
        .form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--secondary); background-color: var(--white); }

        footer { background-color: var(--primary); color: #94a3b8; text-align: center; padding: 2rem; margin-top: auto; font-size: 0.9rem; }

        @media (max-width: 768px) {
            .hero h1 { font-size: 2.8rem; }
            .nav-links { gap: 1rem; font-size: 0.9rem; }
            .portfolio-grid { grid-template-columns: 1fr; }
        }