body { background: #f3f5fa; }
.brand-mark {
  width: 56px; height: 56px; display: grid; place-items: center;
  border-radius: 16px; color: white; font-size: 28px; font-weight: 700;
  background: linear-gradient(135deg, #206bc4, #4054b2);
}
.card { border-radius: 14px; }
.navbar-vertical .navbar-brand { font-size: 25px; font-weight: 700; }
.form-hint ul { padding-left: 18px; margin: 6px 0; }