body.sb { min-height: 100vh; display: flex; flex-direction: column; background: var(--background); }

  /* minimal header */
  .reg-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 32px; }
  .reg-header .who { font-size: var(--text-sm); color: var(--muted-foreground); }
  .reg-header .who a { color: var(--foreground); font-weight: 600; text-decoration: none; }
  .reg-header .who a:hover { color: var(--primary-hover); }

  .reg-main { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px 24px 80px; text-align: center; }
  .reg-main h1 { font-size: var(--text-display); font-weight: 800; letter-spacing: -0.025em; margin: 0 0 10px; }
  .reg-main .sub { font-size: var(--text-lg); color: var(--muted-foreground); margin: 0 0 40px; }

  .roles { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 680px; width: 100%; }
  @media (max-width: 620px){ .roles { grid-template-columns: 1fr; } }
  .role { position: relative; text-align: left; background: var(--card); border: 2px solid var(--border); border-radius: 18px; padding: 22px; cursor: pointer; transition: border-color .15s ease, box-shadow .15s ease, transform .1s ease; font-family: inherit; }
  .role:hover { border-color: oklch(0.8 0 0); }
  .role[aria-pressed="true"] { border-color: #111; box-shadow: 0 0 0 1px #111; }
  .role .ill { height: 168px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 18px; }
  .role .ill i { width: 56px; height: 56px; }
  .role.cust .ill { background: var(--secondary); color: #111; }
  .role.pro .ill { background: var(--primary); color: #111; }
  .role .rt { display: flex; align-items: center; gap: 8px; font-size: var(--text-h4); font-weight: 700; letter-spacing: -0.01em; }
  .role .rt i { width: 20px; height: 20px; color: var(--muted-foreground); }
  .role .rd { font-size: var(--text-sm); color: var(--muted-foreground); margin-top: 6px; }
  .role .check { position: absolute; top: 16px; right: 16px; width: 26px; height: 26px; border-radius: 50%; background: #111; color: #fff; display: none; place-items: center; }
  .role[aria-pressed="true"] .check { display: grid; }
  .role .check i { width: 16px; height: 16px; }

  .reg-cta { margin-top: 34px; display: flex; flex-direction: column; align-items: center; gap: 18px; }
  .reg-cta .sb-btn { min-width: 280px; }
  .reg-foot { font-size: var(--text-sm); color: var(--muted-foreground); }
  .reg-foot a { color: var(--foreground); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }