:root { --mt-primary:#0d6efd; --mt-teal:#0aa2a2; --mt-accent:#e5484d; }
* { box-sizing: border-box; }
.auth-body{
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,#0d6efd 0%, #0aa2a2 100%); padding:1rem;
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
.auth-card{ background:#fff; width:100%; max-width:400px; border-radius:16px; padding:2.25rem 2rem; }
.auth-brand{ display:flex; align-items:center; justify-content:center; gap:.5rem; font-size:1.6rem; font-weight:700; color:var(--mt-primary); }
.auth-brand i{ color:var(--mt-accent); }
.auth-sub{ text-align:center; color:#6c757d; font-size:.9rem; margin:.25rem 0 1.5rem; }
.auth-card .form-label{ font-weight:500; font-size:.9rem; margin-bottom:.25rem; }
.auth-card .btn-primary{ background:var(--mt-primary); border:none; padding:.6rem; font-weight:600; }
.auth-card .input-group-text{ background:#f8f9fa; }