/* Shared Light surface; other themes retain their page surfaces. */
html[data-theme="light"] {
  --aa-light-surface: #e8f1fa;
  --aa-light-surface-bg: radial-gradient(ellipse 120% 55% at 18% 0%, rgba(206,228,248,.42) 0%, transparent 58%), radial-gradient(ellipse 100% 65% at 88% 18%, rgba(192,218,242,.28) 0%, transparent 62%), linear-gradient(180deg,#f7fbff 0%,#eef5fc 28%,#e8f1fa 52%,#f3f9ff 78%,#ffffff 100%);
}
html[data-theme="light"] body {
  background-color: var(--aa-light-surface) !important;
  background-image: var(--aa-light-surface-bg) !important;
}
.aa-conformance-theme { display:flex; justify-content:center; gap:16px; position:relative; padding:12px; }
.aa-conformance-theme button { position:static; min-height:24px; background:transparent; color:inherit; border:0; cursor:pointer; font:inherit; }
.aa-conformance-theme button[aria-pressed="true"] { text-decoration:underline; }