:root { --panel:#101722; --line:rgba(255,255,255,.1); --text:#e7edf5; --muted:#9aa8bb; --accent:#67e3c2; } *{box-sizing:border-box} body{margin:0;min-height:100vh;display:grid;place-items:center;padding:20px;color:var(--text);font-family:"Space Grotesk",system-ui,sans-serif;background:radial-gradient(900px 600px at 20% 0,rgba(103,227,194,.18),transparent 65%),#0b0f14}.auth-card{width:min(420px,100%);padding:28px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,rgba(16,23,34,.96),rgba(12,18,27,.98));box-shadow:0 18px 40px rgba(0,0,0,.4)}.brand{letter-spacing:4px;font-size:22px;font-weight:700;color:var(--accent)}h1{margin:16px 0;font-size:24px}form{display:grid;gap:14px}label{display:grid;gap:6px;color:var(--muted);font-size:13px}input,button{min-height:42px;border-radius:10px;font:inherit}input{padding:8px 10px;border:1px solid var(--line);background:#0f141d;color:var(--text)}button{border:1px solid rgba(103,227,194,.55);background:rgba(103,227,194,.14);color:var(--text);cursor:pointer}a{color:var(--accent)}p{color:var(--muted);font-size:14px}.error{color:#ffb4b4}