:root {
            --primary: #003f66;
            --primary-dark: #012e44;
            --accent: #00aadb;
            --dark: #011b28;
            --text: #334155;
            --text-light: #64748b;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-subtle: #f1f5f9;
            --orange-subtle: #ffead4;
            --border: #e2e8f0;
            --orange: #fe8a00;
            --radius: 16px;
            --radius-sm: 8px;
            --shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.04);
            --shadow-lg: 0 8px 30px rgba(0,0,0,0.06);
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        /* Navigation */
        nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s;
        }

        nav.scrolled { box-shadow: 0 1px 8px rgba(0,0,0,0.06); }

        .nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--dark);
        }

        .nav-logo img { height: 32px; }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-light);
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.2s;
        }

        .nav-links a:hover { color: var(--primary); }

        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            transition: background 0.2s, transform 0.2s !important;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--dark);
            margin: 5px 0;
            border-radius: 2px;
            transition: 0.3s;
        }

        /* Hero */
        .hero {
            padding: 140px 24px 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
            background: var(--bg);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(6,182,212,0.05) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-badge {
            display: inline-block;
            background: var(--orange-subtle);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }

        .hero h1 {
            font-size: clamp(2.4rem, 5vw, 3.8rem);
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.1;
            margin-bottom: 20px;
            letter-spacing: -0.03em;
        }

        .hero h1 .gradient-text {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }

        .hero-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(37,99,235,0.25);
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1.5px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 56px;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: center;
        }

        .hero-stat .number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.03em;
        }

        .hero-stat .label {
            font-size: 0.82rem;
            color: var(--text-light);
            font-weight: 500;
            margin-top: 2px;
        }

        /* Sections */
        section {
            padding: 80px 24px;
        }

        .section-inner {
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
        }

        /* About */
        .about { background: var(--bg-alt); }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .about-text h2 {
            font-size: clamp(1.8rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .about-text p {
            color: var(--text-light);
            font-size: 1rem;
            margin-bottom: 16px;
            line-height: 1.75;
        }

        .about-text a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }

        .about-text a:hover { text-decoration: underline; }

        .about-visual {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .about-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: transform 0.25s, box-shadow 0.25s;
        }

        .about-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .about-card h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }

        .about-card p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* Features */
        .features { background: var(--bg); }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(37,99,235,0.2);
        }

        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 1.2rem;
        }

        .feature-icon.blue { background: rgba(37,99,235,0.08); color: var(--primary); }
        .feature-icon.cyan { background: rgba(6,182,212,0.08); color: var(--accent); }
        .feature-icon.navy { background: rgba(255,234,212,0.06); color: var(--orange); }
        .feature-icon.mixed { background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(6,182,212,0.08)); color: var(--primary); }

        .feature-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* Projects */
        .projects { background: var(--bg-alt); }

        .projects-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .project-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 20px 16px;
            text-align: center;
            text-decoration: none;
            transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }

        .project-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(37,99,235,0.15);
        }

        .project-item img {
            height: 36px;
            width: auto;
            object-fit: contain;
        }

        .project-item span {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text);
        }

        /* Video */
        .video-section { background: var(--bg); }

        .video-container {
        max-width: 800px;
        margin: 0 auto;
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
        aspect-ratio: 16 / 9;
        }

        .video-container iframe {
        width: 100%;
        height: 100%;
        border: 0;
        display: block;
        }

        /* Contact */
        .contact { background: var(--bg-alt); }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .contact-info h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 20px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 20px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(37,99,235,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--primary);
            font-size: 1rem;
        }

        .contact-item .contact-label {
            font-size: 0.78rem;
            color: var(--text-light);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 2px;
        }

        .contact-item .contact-value {
            font-size: 0.95rem;
            color: var(--text);
        }

        .contact-item a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }

        .contact-item a:hover { text-decoration: underline; }

        .social-links {
            display: flex;
            gap: 10px;
            margin-top: 8px;
        }

        .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--bg);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            text-decoration: none;
            transition: all 0.2s;
        }

        .social-links a:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .contact-brand {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            gap: 24px;
        }

        .contact-brand img {
            max-width: 260px;
        }

        .contact-brand p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 360px;
        }

        /* CTA */
        .cta-section {
            background: var(--primary-dark);
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            color: rgba(255,255,255,0.65);
            font-size: 1rem;
            margin-bottom: 28px;
        }

        .cta-section .btn-primary {
            background: #fff;
            color: var(--dark);
        }

        .cta-section .btn-primary:hover {
            background: var(--bg-subtle);
            box-shadow: 0 8px 25px rgba(255,255,255,0.15);
        }

        /* Footer */
        footer {
            background: var(--dark);
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 24px;
        }

        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-inner span {
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }

        .footer-inner a {
            color: rgba(255,255,255,0.5);
            text-decoration: none;
            font-size: 0.82rem;
        }

        .footer-inner a:hover { color: rgba(255,255,255,0.8); }

        /* Animations */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .projects-grid { grid-template-columns: repeat(3, 1fr); }
        }

        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
            }
            .mobile-toggle { display: block; }
            .about-grid { grid-template-columns: 1fr; gap: 32px; }
            .contact-grid { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: 1fr; }
            .projects-grid { grid-template-columns: repeat(2, 1fr); }
            .hero-stats { gap: 24px; }
            .hero { padding: 120px 24px 60px; }
            section { padding: 60px 24px; }
        }

        @media (max-width: 480px) {
            .projects-grid { grid-template-columns: repeat(2, 1fr); }
            .hero-stats { gap: 20px; }
            .hero-stat .number { font-size: 1.6rem; }
        }

        /* SVG icons inline */
        .icon-svg { width: 20px; height: 20px; fill: currentColor; }