:root{color-scheme:dark;--bg:#080a0f;--card:#111827;--text:#f4f8ff;--muted:#aab5c7;--line:#293345;--accent:#9dff7a;--blue:#7ad7ff}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;background:radial-gradient(circle at 10% 0,#143149,transparent 28rem),var(--bg);color:var(--text)}main{max-width:90rem;margin:auto;padding:clamp(1rem,4vw,4rem)}.hero{padding:2rem 0}.eyebrow{color:var(--accent);text-transform:uppercase;letter-spacing:.14em;font-weight:900;font-size:.78rem}h1{font-size:clamp(2.4rem,7vw,5rem);letter-spacing:-.07em;line-height:.9;margin:.5rem 0}.muted{color:var(--muted)}.auth{display:grid;grid-template-columns:1.2fr 1.3fr 1fr auto;gap:.7rem;margin-top:1rem}.auth input,.auth button{border:1px solid var(--line);border-radius:.9rem;padding:.9rem;background:#081018;color:var(--text);font:inherit}.auth button{background:linear-gradient(135deg,var(--accent),var(--blue));color:#071013;font-weight:900;border:0}.grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.card{border:1px solid var(--line);background:rgba(17,24,39,.78);border-radius:1.2rem;padding:1rem;margin:1rem 0}pre{background:#05070b;border-radius:.8rem;padding:1rem;overflow:auto;max-height:36rem}.artifact{border-top:1px solid var(--line);padding:.75rem 0;cursor:pointer}.artifact:hover{color:var(--accent)}code{color:var(--accent)}@media(max-width:850px){.auth,.grid{grid-template-columns:1fr}}