:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--text-primary:#fff;--text-secondary:#cbd5e1;--text-muted:#94a3b8;--primary-color:#25bdeb;--primary-hover:#1ca0c8;--border-color:#334155;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--shadow-sm:0 2px 8px #00000026;--shadow-md:0 8px 20px #00000040;--transition:.3s ease}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg-primary);color:var(--text-primary);font-family:Inter,sans-serif;line-height:1.6;overflow-x:hidden}h1{font-size:72px;font-weight:700;line-height:1.1}h2{font-size:42px;font-weight:700;line-height:1.2}h3{font-size:24px;font-weight:600;line-height:1.3}p{color:var(--text-secondary);font-size:17px;line-height:1.7}a{color:inherit;text-decoration:none}button{font:inherit}ul{list-style:none}img{max-width:100%;display:block}.navbar{background:var(--bg-primary);border-bottom:1px solid 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