:root{--bg:#0b0714;--surface:#180f28;--border:#2e1f45;--text:#f1f5f9;--muted:#b9c2d0;--primary:#6d28d9;--primary-light:#a78bfa;--danger:#ef4444}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Vazirmatn,Tahoma,sans-serif;line-height:1.9}.shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px 16px}.card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:32px 26px}.card h1{font-size:19px;font-weight:800;margin:0 0 8px;text-align:center}.card p.sub{font-size:13px;color:var(--muted);text-align:center;margin:0 0 24px}.field{margin-bottom:16px}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;font-weight:600}.field input{width:100%;padding:12px 13px;border-radius:10px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:14px;font-family:inherit;direction:ltr;text-align:right}.field input:focus{outline:none;border-color:var(--primary-light)}button.btn{width:100%;padding:12px;border-radius:10px;border:none;background:linear-gradient(135deg,var(--primary-light),var(--primary));color:#fff;font-weight:700;font-size:14.5px;font-family:inherit;cursor:pointer}button.btn:disabled{opacity:.6;cursor:not-allowed}.error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.35);color:#fca5a5;border-radius:10px;padding:10px 13px;font-size:13px;margin-bottom:16px}.footer-link{text-align:center;margin-top:18px;font-size:13px;color:var(--muted)}.footer-link a{color:var(--primary-light);text-decoration:none}