:root{--color-primary:#888;--color-background:#1a1a1a;--color-header-bg:linear-gradient(135deg, #2a2a2a, #3a3a3a)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--color-background);color:#e0e0e0;font-family:system-ui,sans-serif}header{background:var(--color-header-bg);text-align:center;padding:3rem 2rem}header h1{color:var(--color-primary);margin-bottom:.5rem;font-size:2.5rem}header p{color:#ccc;font-size:1.1rem}main{max-width:720px;margin:0 auto;padding:2rem}section{margin-bottom:2rem}section h2{color:var(--color-primary);margin-bottom:.75rem;font-size:1.3rem}section p{color:#ccc;line-height:1.7}footer{text-align:center;color:#666;padding:2rem;font-size:.85rem}