#aien-allen-intro {
  position: fixed;
  inset: 0;
  margin: auto;
  width: min(36rem, calc(100% - 2rem));
  max-height: calc(100dvh - 2rem);
  overflow-y: auto;
  padding: clamp(1rem, 4vw, 2rem);
  border: 1px solid var(--border-subtle);
  border-radius: 1rem;
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-sans);
}
#aien-allen-intro:not([open]) { display: none; }
#aien-allen-intro::backdrop { background: color-mix(in srgb, var(--bg-base) 85%, transparent); }
#aien-allen-intro h2 { margin-bottom: 1rem; }
#aien-allen-intro p { margin-bottom: 1rem; color: var(--text-secondary); }
#aien-allen-intro a, .allen-intro-privacy a, .allen-intro-footer a { text-decoration: underline; }
.allen-intro-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-block: 1rem; }
.allen-intro-actions button {
  flex: 1 1 10rem;
  min-height: 3rem;
  padding: .75rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: .5rem;
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
}
.allen-intro-actions button:hover { background: var(--bg-card-hover); }
.allen-intro-actions button:focus-visible { outline: 2px solid var(--accent-green); outline-offset: 3px; }
.allen-intro-footer { padding: 1rem; text-align: center; color: var(--text-secondary); }
.allen-intro-privacy { max-width: 48rem; margin: 3rem auto; padding: 1rem; }
.allen-intro-privacy h1, .allen-intro-privacy h2 { margin-block: 1.5rem 1rem; }
.allen-intro-privacy p { margin-bottom: 1rem; }