:root {
            --bg: #0f1724; 
            --accent1: #00d4ff; 
            --accent2: #7c5cff; 
            --muted: #94a3b8;
            --glass: rgba(255,255,255,0.04);
        }

        ::-webkit-scrollbar { width: 10px; }
        ::-webkit-scrollbar-track { background: #111827; } 
        ::-webkit-scrollbar-thumb { background: #374151; border-radius: 5px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--accent1); }
        
        html { scroll-behavior: smooth; }
        body { overflow-x: hidden; } 
        
        
        .stroke-anim {
            stroke-dasharray: 400;
            stroke-dashoffset: 400;
            animation: dash 1.6s ease forwards;
        }
        @keyframes dash { to { stroke-dashoffset: 0; } }

        .footer-stroke {
            stroke-dasharray: 400;
            stroke-dashoffset: 400;
        }
        .animate-now .footer-stroke {
            animation: dash 1.6s ease forwards;
        }

        
        .nav-card {
            display: flex; align-items: center; gap: 12px; padding: 6px 12px;
            background: transparent; border: none; transition: all 0.3s ease;
        }
        .nav-logoBox { width: 48px; display: flex; align-items: center; justify-content: center; }
        .nav-brand h1 { margin: 0; color: #e6eef8; font-size: 1.1rem; letter-spacing: 0.5px; line-height: 1.1; }
        .nav-brand .subtitle { margin: 2px 0 0; color: var(--muted); font-size: 0.7rem; display: none; }
        @media (min-width: 768px) {
            .nav-logoBox { width: 56px; }
            .nav-brand h1 { font-size: 1.25rem; }
            .nav-brand .subtitle { display: block; }
        }
        
        
        .glass {
            background: rgba(17, 24, 39, 0.7);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

       
        .timeline-item {
            opacity: 0;
            transform: translateY(50px);
            transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .timeline-item.show {
            opacity: 1;
            transform: translateY(0);
        }

        
        @media (min-width: 768px) {
            
            .timeline-arrow-right::after {
                content: '';
                position: absolute;
                top: 24px; 
                right: -14px;
                margin-top: -10px; 
                width: 0; 
                height: 0; 
                border-style: solid;
                border-width: 14px 0 14px 14px;
                border-color: transparent transparent transparent var(--arrow-color);
            }

            
            .timeline-arrow-left::after {
                content: '';
                position: absolute;
                top: 24px; 
                left: -14px;
                margin-top: -10px; 
                width: 0; 
                height: 0; 
                border-style: solid;
                border-width: 14px 14px 14px 0;
                border-color: transparent var(--arrow-color) transparent transparent;
            }
        }