:root {
 
            
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --shadow-red-glow: 0 4px 20px rgba(231, 76, 60, 0.3);
            --bg-glass: rgba(26, 26, 26, 0.7);

            --z-navbar: 1000;
            --z-overlay: 1050;
        }


        .navbar {
            position: fixed;
            top: 0;
            left: 0;
    
            right: 0;
           
            z-index: var(--z-navbar);
            background: transparent;
            border-bottom: 1px solid transparent;
            transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }
        
        @media (min-width: 1024px) {
            .navbar {
                height: 105px;
            }
        }
        @media (max-width: 504px) {
            .navbar {
                height: 95px;
                padding-top: 2%;
            }
        }
        .navbar::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: var(--bg-glass);
            backdrop-filter: blur(15px);
            z-index: -1;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .navbar.scrolled {
            border-bottom-color: var(--border-primary);
            box-shadow: var(--shadow-red-glow);
        }

        .navbar.scrolled::before {
            opacity: 1;
        }

        .navbar-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1rem;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            text-decoration: none;
        }

        .navbar-brand img {
            height: 35px; 
            width: auto;
            transition: transform 0.3s ease;
        }
        
        @media (min-width: 1024px) {
            .navbar-brand img {
                height: 45px;
            }
        }
        
        .navbar-brand:hover img {
            transform: scale(1.05);
        }

        .navbar-menu {
            display: none;
        }
        @media (min-width: 1024px) {
            .navbar-menu {
                display: flex;
            }
        }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }

        .nav-link {
            position: relative;
            padding: 0.75rem 1rem;
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: color 0.3s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 8px;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--brand-yellow-primary);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--text-primary);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 50%;
        }

        .navbar-actions {
            display: none;
            gap: 0.75rem;
        }
        @media (min-width: 1024px) {
            .navbar-actions {
                display: flex;
                align-items: center;
            }
        }

        .btn {
            display: inline-flex; 
            align-items: center; 
            justify-content: center; 
            gap: 0.5rem;
            padding: 0.5rem 1rem; 
            border: 2px solid transparent;
            border-radius: 50px; 
            font-family: 'Inter', sans-serif;
            font-weight: 700; 
            font-size: 0.9rem; 
            text-transform: uppercase;
            letter-spacing: 1px; 
            text-decoration: none; 
            cursor: pointer;
            transition: var(--transition);
        }
        
        .btn-primary {
            background: var(--brand-red-primary); 
            color: var(--text-primary);
        }
        .btn-primary:hover {
            background: var(--brand-red-neon); 
            transform: translateY(-2px); 
            box-shadow: var(--shadow-red-glow);
        }
        .btn-outline {
            background: transparent; 
            color: var(--brand-yellow-primary); 
            border-color: var(--brand-yellow-mustard);
        }
        .btn-outline:hover {
            background: var(--brand-yellow-primary); 
            color: var(--bg-primary);
        }
        
        .mobile-toggle {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: 1001;
            position: relative;
        }
        @media (min-width: 1024px) {
            .mobile-toggle { 
                display: none; 
            }
        }

        .hamburger-line {
            width: 28px;
            height: 3px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            position: absolute;
            transform-origin: center;
        }

        .hamburger-line:nth-child(1) {
            top: 12px;
        }

        .hamburger-line:nth-child(2) {
            top: 50%;
            transform: translateY(-50%);
        }

        .hamburger-line:nth-child(3) {
            bottom: 12px;
        }

        .mobile-toggle.active .hamburger-line:nth-child(1) {
            top: 50%;
            transform: translateY(-50%) rotate(45deg);
        }

        .mobile-toggle.active .hamburger-line:nth-child(2) {
            opacity: 0;
            transform: translateY(-50%) scale(0);
        }

        .mobile-toggle.active .hamburger-line:nth-child(3) {
            bottom: 50%;
            transform: translateY(50%) rotate(-45deg);
        }

        .mobile-menu {
            position: fixed; 
            top: 0; 
            left: 0; 
            width: 100%; 
            height: 100%;
            background: var(--bg-overlay); 
            backdrop-filter: blur(25px);
            z-index: var(--z-overlay);
            display: flex; 
            flex-direction: column;
            opacity: 0; 
            visibility: hidden;
            transform: translateY(-20px);
            transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
        }
        .mobile-menu.active { 
            opacity: 1; 
            visibility: visible; 
            transform: translateY(0); 
        }
        
        .mobile-menu-header {
            display: flex; 
            align-items: center; 
            justify-content: space-between;
            padding: 1rem; 
            height: 80px; 
            border-bottom: 1px solid var(--border-primary);
        }

        .mobile-close-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid var(--border-primary);
            border-radius: 50%;
            color: var(--text-primary);
            font-size: 1.2rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .mobile-close-btn:hover {
            background: var(--brand-red-primary);
            transform: scale(1.05);
        }

        .mobile-menu-nav {
            flex: 1; 
            display: flex; 
            align-items: center; 
            justify-content: center;
        }
        .mobile-nav-list {
            list-style: none; 
            text-align: center;
        }
        .mobile-nav-link {
            display: block; 
            padding: 0.75rem; 
            color: var(--text-secondary);
            text-decoration: none; 
            font-family: 'Bebas Neue', sans-serif;
            font-size: 2.25rem; 
            text-transform: uppercase;
            letter-spacing: 2px; 
            transition: var(--transition);
        }
        .mobile-nav-link:hover {
            color: var(--brand-yellow-primary); 
            transform: scale(1.05);
            text-shadow: 0 0 15px var(--brand-yellow-primary);
        }
        
        .mobile-menu-footer {
            padding: 1.5rem; 
            text-align: center;
            border-top: 1px solid var(--border-primary);
        }
        .mobile-menu-footer .btn {
            width: 100%; 
            max-width: 320px; 
            margin: 0 auto 1rem auto;
        }
        .mobile-menu-socials {
            display: flex; 
            justify-content: center; 
            gap: 1.5rem;
        }
        .mobile-menu-socials a {
            color: var(--text-muted); 
            font-size: 1.5rem; 
            transition: var(--transition);
        }
        .mobile-menu-socials a:hover {
            color: var(--brand-red-primary); 
            transform: translateY(-3px);
        }

        .demo-content {
            margin-top: 80px; 
            padding: 2rem;
            min-height: 200vh;
        }
        
        @media (min-width: 1024px) {
            .demo-content {
                margin-top: 115px; 
            }
        }

        .hero-section {
            padding-top: 80px; 
        }
        
        @media (min-width: 1024px) {
            .hero-section {
                padding-top: 115px;
            }
        }