:root { --bg:#0f1013; --card:#18191e; --line:#2a2c33; --text:#ecedf0; --muted:#9a9ca6; --accent:#f2c14e; --err:#ff7a6b; }
* { box-sizing: border-box; }
body { margin:0; min-height:100vh; display:grid; place-items:center; background:radial-gradient(1200px 600px at 50% -10%, #23252d, var(--bg)); color:var(--text); font:15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; padding:16px; }
.card { width:100%; max-width:360px; background:var(--card); border:1px solid var(--line); border-radius:16px; padding:28px; box-shadow:0 20px 60px rgba(0,0,0,.4); }
.brand { display:flex; align-items:center; gap:10px; font-weight:650; font-size:18px; margin-bottom:22px; }
label { display:block; font-size:13px; color:var(--muted); margin-bottom:14px; }
input { display:block; width:100%; margin-top:6px; padding:10px 12px; border-radius:9px; border:1px solid var(--line); background:#0f1013; color:var(--text); font:inherit; }
input:focus { outline:2px solid var(--accent); outline-offset:-1px; border-color:transparent; }
button { width:100%; margin-top:6px; padding:11px; border:0; border-radius:9px; background:var(--accent); color:#1a1408; font:inherit; font-weight:650; cursor:pointer; }
button:hover { filter:brightness(1.06); }
.err { color:var(--err); font-size:13px; margin:0 0 10px; }