:root{--primary: #0f172a;--secondary: #3b82f6;--accent: #06b6d4;--background: #f8fafc;--text: #1e293b;--light-text: #64748b;--white: #ffffff;--nav-bg: rgba(255, 255, 255, .8)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--background);color:var(--text);line-height:1.6}a{text-decoration:none;color:inherit;transition:color .3s ease}button{cursor:pointer;border:none;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.section{padding:5rem 0}h1,h2,h3,h4,h5,h6{line-height:1.2;font-weight:700;color:var(--primary);margin-bottom:1rem}p{margin-bottom:1.5rem;color:var(--light-text)}