:root{--bg: #0b1021;--card: #161b31;--text: #e8ecff;--muted: #94a3b8;--accent: #7c9cff}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:radial-gradient(60% 80% at 10% 10%,#111634,#0b1021 60%);color:var(--text)}.app{display:grid;grid-template-rows:auto 1fr auto;min-height:100%}.navbar{position:sticky;top:0;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0b102199;border-bottom:1px solid #232a4b}.nav{display:flex;gap:1rem;padding:1rem clamp(1rem,5vw,3rem);align-items:center}.nav a{color:var(--muted);text-decoration:none;font-weight:600}.nav a.active{color:var(--text);border-bottom:2px solid var(--accent)}.container{max-width:960px;margin:2rem auto;padding:0 clamp(1rem,5vw,3rem)}h1{font-size:clamp(1.8rem,4vw,2.4rem);margin:0 0 .75rem}p{line-height:1.6;color:var(--muted)}code{background:#0e1430;padding:.125rem .375rem;border-radius:6px}.footer{border-top:1px solid #232a4b;padding:1rem;text-align:center;color:var(--muted)}