/* Release history is public and self-contained. The update notice shares its
   palette without changing the rest of the application. */
:is(.changelog-page,.update-notice) {
  --release-bg: #f5f6fa;
  --release-surface: #fff;
  --release-raised: #f0f3f8;
  --release-text: #20252d;
  --release-muted: #596474;
  --release-line: #e0e5ed;
  --release-accent: #65539f;
  --release-accent-bg: #edf3ff;
  --release-tint: #f8faff;
  --release-green: #207451;
  --release-green-bg: #edf7f1;
  --release-shadow: 0 8px 32px #253d6206, 0 1px 3px #253d6203;
  --release-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
html[data-theme="dark"] :is(.changelog-page,.update-notice) {
  --release-bg: #05060a;
  --release-surface: #0d111b;
  --release-raised: #192131;
  --release-text: #e9edf5;
  --release-muted: #a2adc0;
  --release-line: #263046;
  --release-accent: #b7a8f4;
  --release-accent-bg: #1b172c;
  --release-tint: #151323;
  --release-green: #9edbc4;
  --release-green-bg: #172b23;
  --release-shadow: 0 8px 32px #00000018, 0 1px 3px #00000014;
}

/* A clear, quiet reading page. */
.auth-release-footer { display: flex; justify-content: center; align-items: center; gap: 18px; padding: 18px 24px; color: var(--muted); background: var(--bg); border-color: var(--line); font-size: 12px; }
.auth-release-footer :is(a,span) { color: var(--muted); }
#auth-view[hidden] + .auth-release-footer { display: none; }
.footer-changelog { display: inline-flex; align-items: center; gap: 7px; }
.release-footer-badge { padding: 2px 6px; border-radius: 5px; background: var(--accent-bg); color: var(--accent); font-size: 10px; font-weight: 600; }
.release-footer-badge[hidden] { display: none; }
.changelog-page { margin: 0; background: var(--release-bg); color: var(--release-text); font: 15px/1.6 var(--release-font); letter-spacing: -.012em; -webkit-font-smoothing: antialiased; }
.changelog-page * { box-sizing: border-box; }
.changelog-page [hidden] { display: none !important; }
.changelog-page :is(h1,h2,h3,p) { margin: 0; }
.changelog-page a { color: inherit; text-decoration: none; }
.changelog-page :is(a,button):focus-visible { outline: 2px solid var(--release-accent); outline-offset: 5px; }
.changelog-page ::selection { color: var(--release-text); background: var(--release-accent-bg); }
.release-shell { max-width: 1088px; margin: 0 auto; padding: 0 40px; }
.release-skip { position: fixed; top: 12px; left: 12px; padding: 12px 18px; border: 1px solid var(--release-line); border-radius: 8px; background: var(--release-surface); transform: translateY(-200%); z-index: 10; }
.release-skip:focus { transform: translateY(0); }
.release-header { min-height: 108px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--release-line); }
.release-brand { display: inline-flex; align-items: center; gap: 17px; font-size: 27px; line-height: 1; font-weight: 650; letter-spacing: -1.5px; }
.release-brand-dot { color: var(--release-accent); }
.release-brand-mark { position: relative; width: 25px; height: 25px; flex: 0 0 25px; border: 1.5px solid var(--release-accent); border-radius: 50%; }
.release-brand-mark::after { content: ''; position: absolute; top: 7px; left: -7px; right: -7px; height: 8px; border: 1.5px solid var(--release-accent); border-radius: 50%; transform: rotate(-30deg); background: linear-gradient(transparent 43%,var(--release-bg) 55%,transparent); }
.release-back { display: inline-flex; align-items: center; gap: 10px; color: var(--release-muted) !important; font-size: 13px; font-weight: 500; min-height: 44px; }
.release-back:hover { color: var(--release-accent) !important; }
.release-back > span { font-size: 17px; transition: transform 150ms ease; }
.release-back:hover > span { transform: translateX(-3px); }
.release-intro { padding: 76px 0 62px; }
.release-eyebrow { color: var(--release-muted); font-size: 12px; font-weight: 600; letter-spacing: .08em; }
.release-intro h1 { font-size: clamp(42px,6vw,64px); line-height: 1.1; font-weight: 600; letter-spacing: -.06em; margin: 14px 0 20px; }
.release-intro h1 > span { color: var(--release-accent); }
.release-intro-copy { color: var(--release-muted); max-width: 550px; font-size: 17px; line-height: 1.65; }
.release-current { display: inline-flex; align-items: center; gap: 9px; flex-wrap: wrap; margin-top: 28px; color: var(--release-muted); font-size: 12px; }
.release-current > span:last-child { color: var(--release-text); font-variant-numeric: tabular-nums; font-weight: 550; }
.release-current-dot { display: inline-block; height: 6px; width: 6px; border-radius: 50%; background: var(--release-green); }
.release-timeline { list-style: none; margin: 0; padding: 0; }
.release-entry { display: grid; grid-template-columns: 158px minmax(0,1fr); column-gap: 30px; padding-bottom: 40px; scroll-margin-top: 28px; }
.release-meta { display: flex; align-items: flex-start; flex-direction: column; gap: 9px; padding-top: 30px; position: relative; }
.release-meta time { color: var(--release-muted); font-size: 12px; line-height: 1.6; }
.release-version { color: var(--release-text); font-size: 13px; font-weight: 550; font-variant-numeric: tabular-nums; }
.release-version > span { color: var(--release-muted); padding-left: 3px; opacity: 0; }
.release-version:is(:hover,:focus-visible) { color: var(--release-accent); }
.release-version:is(:hover,:focus-visible) > span { opacity: 1; }
.release-latest-label { color: var(--release-accent); background: var(--release-accent-bg); margin-top: 5px; border-radius: 5px; padding: 3px 8px; font-size: 11px; font-weight: 550; line-height: 1.6; }
.release-card { min-width: 0; border: 1px solid var(--release-line); border-radius: 20px; padding: 30px 34px; background: var(--release-surface); box-shadow: var(--release-shadow); }
.release-entry-latest .release-card { background: linear-gradient(135deg,var(--release-tint),var(--release-surface) 55%); }
.release-card-heading h2 { font-size: 24px; line-height: 1.25; font-weight: 600; letter-spacing: -.035em; overflow-wrap: anywhere; }
.release-entry-latest .release-card-heading h2 { font-size: 28px; }
.release-summary { color: var(--release-muted); margin-top: 12px !important; max-width: 610px; font-size: 14px; line-height: 1.75; }
.release-highlights { list-style: none; margin: 26px 0 0; padding: 24px 0 0; border-top: 1px solid var(--release-line); display: grid; gap: 24px; }
.release-highlight { display: grid; grid-template-columns: 71px minmax(0,1fr); gap: 16px; align-items: start; }
.release-category { display: inline-flex; width: max-content; max-width: 100%; align-items: center; justify-content: center; min-height: 24px; margin-top: 1px; border-radius: 5px; padding: 3px 8px; color: var(--release-muted); background: var(--release-raised); font-size: 10px; font-weight: 600; line-height: 1.5; letter-spacing: .01em; }
.release-category-new { color: var(--release-accent); background: var(--release-accent-bg); }
.release-category-fixed { color: var(--release-green); background: var(--release-green-bg); }
.release-highlight h3 { color: var(--release-text); font-size: 14px; line-height: 1.7; font-weight: 600; letter-spacing: -.015em; }
.release-highlight p { color: var(--release-muted); font-size: 13px; line-height: 1.75; margin-top: 5px; overflow-wrap: anywhere; }
.release-entry:target .release-card { border-color: var(--release-accent); }
.release-pagination { margin: 0 0 50px 188px; text-align: center; }
.release-more { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; border: 1px solid var(--release-line); border-radius: 9px; padding: 9px 16px; font-size: 13px; font-weight: 500; background: var(--release-surface); }
.release-more:hover { border-color: var(--release-accent); }
.release-empty { padding: 38px; border: 1px solid var(--release-line); border-radius: 20px; background: var(--release-surface); margin-bottom: 50px; }
.release-empty h2 { font-size: 21px; font-weight: 600; }
.release-empty p { margin-top: 8px; color: var(--release-muted); }
.release-footer { border-top: 1px solid var(--release-line); display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px 0 40px; margin-top: 20px; }
.release-footer > div:first-child { display: flex; align-items: center; gap: 18px; font-size: 12px; }
.release-footer > div:first-child > a { font-weight: 550; }
.release-footer > div:first-child > span { color: var(--release-muted); }
.release-appearance { display: inline-flex; gap: 3px; padding: 3px; border: 1px solid var(--release-line); border-radius: 9px; background: var(--release-bg); }
.release-appearance button { min-height: 34px; padding: 6px 11px; border: 0; border-radius: 6px; background: transparent; color: var(--release-muted); font: 500 12px/1.4 var(--release-font); cursor: pointer; }
.release-appearance button:hover { color: var(--release-text); background: var(--release-raised); }
.release-appearance button[aria-pressed="true"] { background: var(--release-surface); color: var(--release-text); box-shadow: 0 1px 4px #00000012; }

/* A version change is useful information, never a blocking interruption. */
#release-update.update-notice { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 16px; margin: 20px 32px 0; padding: 14px 18px; border: 1px solid var(--release-line); border-radius: 10px; color: var(--release-text); background: var(--release-surface); box-shadow: none; }
#release-update.update-notice[hidden] { display: none !important; }
#release-update .update-notice-copy { min-width: 0; }
#release-update .update-notice-label { display: block; margin: 0 0 5px; color: var(--release-accent); font-size: 10px; font-weight: 600; line-height: 1.5; letter-spacing: .045em; }
#release-update h2 { color: var(--release-text); margin: 0; font-size: 14px; font-weight: 550; line-height: 1.4; letter-spacing: -.015em; overflow-wrap: anywhere; }
#release-update .update-notice-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
#release-update .update-notice-actions :is(a,button) { white-space: normal; text-align: center; min-height: 34px; font-size: 12px; }
#release-update .update-notice-actions .btn.primary { min-height: 38px; padding: 9px 13px; }
#release-update .update-notice-actions :is(.btn.link,.text-button) { padding: 7px 10px; color: var(--release-muted); }
#release-update .update-notice-actions :is(.btn.link,.text-button):hover { color: var(--release-accent); }
#release-update .update-notice-actions > a:not(.btn) { color: var(--release-accent); display: inline-flex; align-items: center; justify-content: center; padding: 7px 10px; }
#release-update .update-notice-message { color: var(--release-muted); margin: 14px 0 0; padding-top: 12px; border-top: 1px solid var(--release-line); font-size: 12px; line-height: 1.65; }
#release-update .update-notice-message[hidden] { display: none; }
.release-footer-link { display: inline-flex; align-items: center; gap: 6px; }
.release-footer-link:hover { text-decoration: underline; text-underline-offset: 3px; }

@media (min-width: 1800px) {
  #release-update.update-notice { margin-inline: 64px; }
}
@media (max-width: 1200px) {
  #release-update.update-notice { margin-inline: 28px; }
}
@media (max-width: 980px) {
  #release-update.update-notice { grid-template-columns: minmax(0,1fr); gap: 10px; }
  #release-update .update-notice-actions { grid-column: 1; gap: 8px; }
}
@media (max-width: 760px) {
  .release-shell { padding: 0 24px; }
  .release-header { min-height: 88px; gap: 16px; }
  .release-brand { font-size: 25px; }
  .release-back { font-size: 12px; gap: 7px; }
  .release-intro { padding: 54px 0 42px; }
  .release-intro-copy { font-size: 15px; }
  .release-entry { grid-template-columns: minmax(0,1fr); gap: 16px; padding-bottom: 32px; }
  .release-meta { flex-direction: row; align-items: center; flex-wrap: wrap; column-gap: 14px; row-gap: 7px; padding: 0; }
  .release-meta time { order: 1; }
  .release-meta .release-latest-label { order: 2; margin: 0; }
  .release-version > span { display: none; }
  .release-card { padding: 26px; border-radius: 16px; }
  .release-card-heading h2, .release-entry-latest .release-card-heading h2 { font-size: 24px; }
  .release-pagination { margin-left: 0; }
  .release-footer { flex-wrap: wrap; }
  #release-update.update-notice { margin-inline: 22px; }
}
@media (max-width: 480px) {
  .release-shell { padding: 0 20px; }
  .release-back { font-size: 11px; }
  .release-brand { gap: 12px; }
  .release-brand-mark { transform: scale(.85); }
  .release-intro { padding: 44px 0 36px; }
  .release-current { margin-top: 22px; }
  .release-card { padding: 23px 21px; }
  .release-card-heading h2, .release-entry-latest .release-card-heading h2 { font-size: 22px; }
  .release-highlights { gap: 23px; margin-top: 23px; padding-top: 22px; }
  .release-highlight { grid-template-columns: minmax(0,1fr); gap: 8px; }
  .release-summary { font-size: 13px; }
  .release-footer { padding-bottom: 28px; gap: 20px; }
  .release-empty { padding: 26px; }
  #release-update.update-notice { margin: 18px 18px 0; padding: 14px 16px; gap: 10px; }
  #release-update .update-notice-actions { grid-column: 1 / -1; gap: 5px; }
  #release-update .update-notice-actions .btn.primary { flex: 1 0 100%; }
  #release-update .update-notice-actions > :not(.primary) { flex: 1; }
  #release-update h2 { font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  .release-back > span { transition: none; }
}