:root{color-scheme:dark;--bg:#0f1117;--card:#161b22;--border:#2a3039;--text:var(--text);--muted:var(--muted);--accent:#3b82f6;--danger:#ef4444}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:radial-gradient(circle at top,#1d2533,#0f1117 45%);color:var(--text)}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(420px,100%);background:rgba(22,27,34,.92);border:1px solid var(--border);border-radius:24px;padding:32px;box-shadow:0 30px 80px rgba(0,0,0,.35)}h1{margin:0 0 8px;font-size:28px}p{color:var(--muted);margin:0 0 24px}form{display:grid;gap:12px}input{background:#0f141d;border:1px solid var(--border);color:var(--text);border-radius:12px;padding:13px 14px;outline:none}input:focus{border-color:var(--accent)}button{border:0;border-radius:12px;background:var(--accent);color:white;padding:13px 16px;font-weight:700;cursor:pointer}.links{display:flex;justify-content:space-between;margin-top:18px}.links a{color:#93c5fd;text-decoration:none;font-size:14px}#msg{margin-top:16px;color:var(--muted);white-space:pre-wrap}.error{color:var(--danger)}