:root{--bg:#0b1220;--card:#0f172a;--muted:#94a3b8;--text:#e2e8f0;--accent:#22d3ee}*{box-sizing:border-box}body,html{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:radial-gradient(1200px 800px at 10% 10%,#0e203a,#0b1220 60%,#060913);color:var(--text)}a{color:var(--accent);text-decoration:none}.container{max-width:880px;margin:0 auto;padding:24px}.card{background:linear-gradient(180deg,hsla(0,0%,100%,.03),hsla(0,0%,100%,.02));border:1px solid hsla(0,0%,100%,.08);border-radius:20px;padding:24px;box-shadow:0 10px 30px rgba(0,0,0,.25)}.input,textarea{width:100%;background:#0b1220;border:1px solid hsla(0,0%,100%,.1);color:var(--text);border-radius:12px;padding:12px 14px}.row{display:grid;grid-gap:12px;gap:12px;grid-template-columns:1fr 1fr}.btn{border:1px solid hsla(0,0%,100%,.12);background:#0f172a;color:var(--text);padding:10px 14px;border-radius:12px;cursor:pointer}.btn.primary{background:linear-gradient(180deg,#22d3ee,#06b6d4);color:#001018;font-weight:700;border:none}.small{color:var(--muted);font-size:12px}.header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.brand{font-weight:800;letter-spacing:.3px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}.center{text-align:center}