/* Sign-in screen and the in-app "session expired" dialog. Colours come from the app theme (styles.css on app pages,
   sign-in.js on the public sign-in page), with fallbacks for the default theme. */
.sign-in-page { margin: 0; min-height: 100vh; background: var(--bg, #F7F7F8);
  background-image: radial-gradient(circle at 15% 10%, color-mix(in srgb, var(--brand, #202020) 10%, transparent), transparent 45%),
    radial-gradient(circle at 85% 90%, color-mix(in srgb, var(--brand, #202020) 8%, transparent), transparent 40%); }
.sign-in-dialog { box-sizing: border-box; width: min(440px, calc(100% - 32px)); max-height: calc(100dvh - 32px);
  margin: auto; padding: 36px 36px 28px; border: 1px solid var(--border, #E5E5E7); border-radius: 16px;
  background: var(--surface, #FFFFFF); color: var(--text, #202020);
  box-shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 24px 64px rgba(16, 24, 40, .12);
  font: 15px/1.55 Inter, system-ui, -apple-system, "Segoe UI", sans-serif; text-align: left; }
.sign-in-dialog::backdrop { background: color-mix(in srgb, var(--bg, #F7F7F8) 88%, transparent); backdrop-filter: blur(6px); }
.sign-in-dialog[open]:not(:modal) { position: fixed; inset: 0; }
.sign-in-logo { display: block; height: 34px; width: auto; margin-bottom: 22px; }
/* The logo artwork is dark, so dark themes show it on a light chip. */
[data-theme="dark"] .sign-in-logo, [data-theme="midnight-teal"] .sign-in-logo, [data-theme="ocean-deep"] .sign-in-logo {
  box-sizing: content-box; padding: 6px 10px; border-radius: 8px; background: #FFFFFF; }
.sign-in-brand { display: flex; align-items: center; gap: 8px; margin: 0 0 6px;
  color: var(--muted, #66666D); font-size: 12.5px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.sign-in-brand svg { width: 16px; height: 16px; fill: none; stroke: var(--brand, #202020); stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round; }
.sign-in-dialog h1 { margin: 0 0 10px; color: var(--text, #202020); font-size: 24px; font-weight: 700;
  line-height: 1.25; letter-spacing: -.02em; white-space: normal; }
.sign-in-dialog #sign-in-description { margin: 0 0 24px; color: var(--muted, #66666D); }
.sign-in-button { box-sizing: border-box; display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; height: 46px; padding: 0 20px; border-radius: 10px; border: 1px solid var(--brand, #202020);
  background: var(--brand, #202020); color: var(--on-brand, #FFFFFF); font: inherit; font-weight: 600;
  text-decoration: none; transition: filter .15s ease-out, box-shadow .15s ease-out; }
.sign-in-button:hover { filter: brightness(1.12); box-shadow: 0 4px 14px color-mix(in srgb, var(--brand, #202020) 30%, transparent); }
.sign-in-button:focus-visible { outline: 3px solid color-mix(in srgb, var(--brand, #202020) 45%, transparent); outline-offset: 3px; }
.sign-in-button svg { width: 18px; height: 18px; flex: none; padding: 3px; border-radius: 4px; background: #FFFFFF; }
.sign-in-dialog .sign-in-note { margin: 18px 0 0; padding-top: 16px; border-top: 1px solid var(--border, #E5E5E7);
  color: var(--muted, #66666D); font-size: 13px; }
.sign-in-dialog .sign-in-foot { margin: 14px 0 0; color: var(--muted, #66666D); font-size: 12px; opacity: .8; }
@media (max-width: 520px) {
  .sign-in-dialog { padding: 28px 22px 22px; border-radius: 14px; }
}