:root{--bg: #0f1117;--surface: #1e2130;--text: #e2e8f0;--muted: #8892a4;--accent: #6366f1;--error: #f87171}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:system-ui,sans-serif;padding:2rem}.container{max-width:600px;margin:0 auto}h1{font-size:1.75rem;margin-bottom:2rem;color:var(--accent)}section{background:var(--surface);border-radius:8px;padding:1.25rem 1.5rem;margin-bottom:1rem}h2{font-size:.85rem;font-family:monospace;letter-spacing:.05em;color:var(--muted);margin-bottom:.75rem}p{font-size:1rem;line-height:1.5}.muted{color:var(--muted)}.error{color:var(--error)}strong{color:var(--accent)}