/* Header Styles */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }

        /* Logo Styles */
        
        /* Navigation Links */
        .nav-link {
            position: relative;
            padding: 8px 16px;
            text-decoration: none;
            color: #374151;
            font-weight: 500;
            transition: color 0.3s ease;
            border-radius: 8px;
        }

        .nav-link:hover {
            color: #092031;
            background: rgba(37, 99, 235, 0.05);
        }

        .nav-link.active {
            color: #092031;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: #72F3FA;
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 60%;
        }

        /* Menu Button */
        .menu-button {
            display: flex;
            flex-direction: column;
            justify-content: space-around;
            width: 32px;
            height: 32px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 4px;
        }

        .menu-button span {
            width: 100%;
            height: 3px;
            background: #374151;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .menu-button.active span:nth-child(1) {
            transform: rotate(45deg) translate(8px, 8px);
        }

        .menu-button.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-button.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -7px);
        }

        /* Scroll Indicator */
        .scroll-indicator {
            position: absolute;
            bottom: 0;
            left: 0;
            height: 3px;
            background: linear-gradient(90deg, #72F3FA, #092031);
            transition: width 0.3s ease;
            width: 0%;
        }

        /* Mobile Menu Overlay */
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(4px);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 999;
        }

        .mobile-menu-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        /* Mobile Menu */
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100vh;
            background: white;
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
            transition: right 0.3s ease;
            z-index: 1000;
            overflow-y: auto;
        }

        .mobile-menu.active {
            right: 0;
        }

        .mobile-menu-header {
            padding: 20px;
            border-bottom: 1px solid #e5e7eb;
            display: flex;
            justify-content: flex-end;
        }

        .close-button {
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #374151;
            transition: all 0.3s ease;
            border-radius: 8px;
        }

        .close-button:hover {
            background: rgba(239, 68, 68, 0.1);
            color: #ef4444;
        }

        .mobile-nav {
            padding: 20px;
        }

        .mobile-link {
            display: flex;
            align-items: center;
            padding: 16px;
            text-decoration: none;
            color: #374151;
            font-weight: 500;
            border-radius: 12px;
            margin-bottom: 8px;
            transition: all 0.3s ease;
        }

        .mobile-link:hover,
        .mobile-link.active {
            background: rgba(37, 99, 235, 0.1);
            color: #092031;
            transform: translateX(4px);
        }

        .mobile-cta {
            display: block;
            margin: 20px;
            padding: 14px 24px;
            background: linear-gradient(135deg, #72F3FA, #092031);
            color: white;
            text-align: center;
            text-decoration: none;
            border-radius: 12px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .mobile-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
        }

        /* Demo Content */
        .demo-content {
            padding-top: 80px;
            min-height: 200vh;
        }

        .section {
            padding: 60px 20px;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 48px;
            font-weight: bold;
            color: #9ca3af;
        }

        .section:nth-child(odd) {
            background: #f9fafb;
        }