/* Palette unified with the global.css base tokens; --release-paper keeps the
   ledger identity. Dark flips for base tokens live in global.css. */
:root {
  --release-backdrop: var(--bg-soft);
  --release-paper: #fbfaf7;
  --release-ink: var(--ink);
  --release-blue: var(--accent);
  --release-blue-soft: var(--accent-soft);
  --release-orange: #d97732;
  --release-green: #178b67;
}

:root[data-theme="dark"] {
  --release-paper: var(--card);
  --release-orange: oklch(0.76 0.13 60);
  --release-green: oklch(0.76 0.13 160);
}

body {
  background:
    linear-gradient(90deg, transparent 0 49.94%, color-mix(in oklch, var(--accent) 2.5%, transparent) 50%, transparent 50.06%),
    var(--release-backdrop);
}

.release-stage {
  min-height: 100vh;
  padding: 108px 34px 80px;
}

.release-grid {
  width: min(1440px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px minmax(0, 920px) 190px;
  gap: 30px;
  align-items: start;
  justify-content: center;
}

.release-rail,
.release-toc {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  scrollbar-width: thin;
}

.release-rail__eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 4px 0 18px 10px;
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.release-rail__mark {
  width: 10px;
  height: 10px;
  border: 2px solid var(--release-blue);
  border-radius: 3px 3px 3px 0;
  transform: rotate(-12deg);
}

.release-rail nav { display: grid; gap: 18px; }
.release-rail__group { display: grid; gap: 7px; }
.release-rail__minor {
  margin: 0 0 2px 10px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.release-rail__more summary {
  margin: 2px 10px 6px;
  color: var(--ink-3);
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.release-rail__more summary::-webkit-details-marker { display: none; }
.release-rail__more summary:hover { color: var(--release-blue); }
.release-rail__more .when-open { display: none; }
.release-rail__more[open] .when-open { display: inline; }
.release-rail__more[open] .when-closed { display: none; }

.release-version-link {
  display: grid;
  gap: 4px;
  padding: 12px 13px;
  border: 1px solid transparent;
  border-radius: 11px;
  color: var(--ink-2);
  text-decoration: none;
  transition: background .18s, border-color .18s, transform .18s;
}

.release-version-link:hover {
  transform: translateX(2px);
  border-color: var(--line);
  background: color-mix(in oklch, var(--card) 68%, transparent);
}

.release-version-link.active {
  border-color: color-mix(in srgb, var(--release-blue) 22%, transparent);
  background: var(--card);
  color: var(--release-blue);
  box-shadow: 0 8px 24px rgba(35, 55, 92, .08);
}

.release-version-link__line { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.release-version-link strong { font-family: var(--font-mono); font-size: 13px; }
.release-version-link small { color: var(--ink-3); font-size: 11px; }
.release-version-link em {
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--release-blue-soft);
  color: var(--release-blue);
  font-size: 9px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.release-rail__all {
  display: inline-block;
  margin: 18px 10px;
  color: var(--ink-3);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
}
.release-rail__all:hover { color: var(--release-blue); }

.release-paper {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    linear-gradient(color-mix(in oklch, var(--accent) 3.5%, transparent) 1px, transparent 1px) 0 0 / 100% 34px,
    var(--release-paper);
  box-shadow: 0 28px 80px -42px rgba(24, 35, 60, .38);
}

.release-hero {
  position: relative;
  padding: 48px 62px 44px;
  background:
    radial-gradient(circle at 90% 5%, color-mix(in oklch, var(--accent) 14%, transparent), transparent 28%),
    linear-gradient(180deg, color-mix(in oklch, var(--card) 88%, transparent), color-mix(in oklch, var(--release-paper) 92%, transparent));
}

.release-hero::after {
  content: "";
  position: absolute;
  left: 62px;
  right: 62px;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--release-blue), var(--line) 36%, transparent);
}

.release-hero__meta { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.release-hero__meta time { font-family: var(--font-mono); color: var(--ink-3); font-size: 12px; }
.release-channel {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--release-green);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.release-channel__dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 14%, transparent); }
.release-hero h1 {
  max-width: 15em;
  margin: 28px 0 0;
  color: var(--release-ink);
  font-size: clamp(32px, 4vw, 46px);
  font-weight: 600;
  letter-spacing: -.032em;
  line-height: 1.08;
  text-wrap: balance;
}

.release-surfaces { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 24px; }
.release-surfaces > span {
  padding: 5px 9px;
  border: 1px solid color-mix(in srgb, var(--release-blue) 18%, var(--line));
  border-radius: 999px;
  background: color-mix(in oklch, var(--card) 72%, transparent);
  color: var(--ink-2);
  font-size: 11px;
  font-weight: 600;
}

.release-target-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.release-target-summary > span {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: color-mix(in oklch, var(--card) 64%, transparent);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
}
.release-target-summary strong { color: var(--release-ink); }
.release-target-summary + .release-lede { margin-top: 20px; }

.release-lede { margin: 28px 0 0; max-width: 720px; color: var(--ink-2); font-size: 16.5px; line-height: 1.75; }

.release-section { padding: 52px 62px 0; scroll-margin-top: 100px; }
.release-section__head { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.release-section__head > span {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid color-mix(in srgb, var(--release-blue) 24%, var(--line));
  border-radius: 8px;
  color: var(--release-blue);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}
.release-section h2 { color: var(--release-ink); font-size: 27px; font-weight: 650; letter-spacing: -.02em; }
.release-section h3 { color: var(--release-ink); font-size: 17px; font-weight: 650; line-height: 1.35; }
.release-section p { color: var(--ink-2); font-size: 15px; line-height: 1.68; }

.release-target-section__summary { margin: -10px 0 24px; max-width: 700px; }
.release-target-group + .release-target-group { margin-top: 30px; }
.release-target-group__title {
  margin-bottom: 13px;
  color: var(--ink-3) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.release-target-empty {
  padding: 22px 24px;
  border: 1px dashed color-mix(in srgb, var(--release-blue) 26%, var(--line));
  border-radius: 13px;
  background: color-mix(in oklch, var(--card) 56%, transparent);
}
.release-target-empty strong { color: var(--release-ink); font-size: 15px; }
.release-target-empty p { margin-top: 6px; font-size: 13.5px; }
.release-item-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.release-item-targets { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 9px; }
.release-item-meta .release-item-targets { justify-content: flex-end; margin-bottom: 7px; }
.release-item-targets > span {
  padding: 3px 7px;
  border: 1px solid color-mix(in srgb, var(--release-blue) 18%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--release-blue-soft) 52%, transparent);
  color: var(--release-blue);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
}

.release-guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.release-guide {
  position: relative;
  display: grid;
  align-content: start;
  min-height: 168px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in oklch, var(--card) 72%, transparent);
  color: inherit;
  text-decoration: none;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.release-guide:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--release-blue) 35%, var(--line)); box-shadow: 0 18px 35px -24px rgba(35, 65, 120, .4); }
.release-guide__arrow { position: absolute; top: 18px; right: 18px; color: var(--release-blue); font-size: 18px; }
.release-guide h3 { padding-right: 24px; }
.release-guide p { margin-top: 12px; font-size: 13.5px; }

.release-highlight-list { display: grid; gap: 12px; }
.release-highlight {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in oklch, var(--card) 68%, transparent);
}
.release-highlight__index { color: color-mix(in srgb, var(--release-blue) 48%, var(--ink-3)); font-family: var(--font-mono); font-size: 12px; padding-top: 4px; }
.release-highlight__kind { margin-bottom: 7px; color: var(--release-blue); font-size: 10px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.release-highlight[data-kind="security"] .release-highlight__kind { color: var(--release-orange); }
.release-highlight[data-kind="fixed"] .release-highlight__kind { color: var(--release-green); }
.release-highlight p { margin-top: 8px; }
.release-refs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 13px; }
.release-refs a {
  padding: 3px 7px;
  border-radius: 6px;
  background: var(--release-blue-soft);
  color: var(--release-blue);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  text-decoration: none;
}

.release-change-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.release-change-list article {
  padding: 20px 22px;
  border-top: 2px solid color-mix(in srgb, var(--release-blue) 42%, var(--line));
  background: color-mix(in oklch, var(--card) 46%, transparent);
}
.release-change-list p { margin-top: 8px; font-size: 14px; }

.release-notice-list { display: grid; gap: 10px; }
.release-notice {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 20px;
  border: 1px solid color-mix(in srgb, var(--release-blue) 22%, var(--line));
  border-radius: 12px;
  background: color-mix(in srgb, var(--release-blue-soft) 56%, var(--card));
}
.release-notice--warning { border-color: color-mix(in srgb, var(--release-orange) 32%, var(--line)); background: color-mix(in srgb, var(--release-orange) 12%, var(--card)); }
.release-notice__icon { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--release-blue); color: white; font-family: var(--font-mono); font-size: 12px; font-weight: 700; }
.release-notice--warning .release-notice__icon { background: var(--release-orange); }
.release-notice p { margin-top: 6px; font-size: 14px; }

.release-thanks > p { margin-bottom: 14px; }
.release-thanks > div { display: flex; flex-wrap: wrap; gap: 8px; }
.release-thanks a { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: color-mix(in oklch, var(--card) 70%, transparent); color: var(--ink-2); font-family: var(--font-mono); font-size: 11px; text-decoration: none; }
.release-thanks a:hover { color: var(--release-blue); border-color: color-mix(in srgb, var(--release-blue) 34%, var(--line)); }

.release-download {
  margin: 56px 62px 62px;
  padding: 30px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  border-radius: 16px;
  background: #20242d;
}
.release-download h2 { max-width: 480px; color: #fff; font-size: 28px; }
.release-download__kicker { margin-bottom: 7px; color: #91b8ff !important; font-size: 11px !important; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.release-download__actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.release-compare { color: #c9d4e9; font-size: 13px; font-weight: 600; text-decoration: none; }
.release-compare:hover { color: #fff; }

.release-toc { padding: 6px 0 20px; }
.release-toc > p { margin: 0 0 16px 12px; color: var(--release-ink); font-size: 13px; font-weight: 700; }
.release-toc nav { display: grid; border-left: 1px solid var(--line); }
.release-toc a {
  position: relative;
  padding: 7px 0 7px 13px;
  color: var(--ink-3);
  font-size: 12px;
  font-weight: 550;
  text-decoration: none;
  transition: color .16s;
}
.release-toc a::before { content: ""; position: absolute; left: -1px; top: 5px; bottom: 5px; width: 2px; border-radius: 4px; background: transparent; }
.release-toc a:hover { color: var(--release-ink); }
.release-toc a.active { color: var(--release-blue); }
.release-toc a.active::before { background: var(--release-blue); }

.release-mobile-switcher { display: none; }
.release-footer {
  width: min(1180px, calc(100% - 64px));
  margin: 0 auto;
  padding: 28px 0 38px;
  display: flex;
  align-items: center;
  gap: 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 12px;
}
.release-footer > span { margin-left: auto; color: var(--ink-3); }
.release-footer > a:last-child { color: var(--ink-2); text-decoration: none; }

@media (max-width: 1180px) {
  .release-grid { grid-template-columns: 200px minmax(0, 850px); }
  .release-toc { display: none; }
}

@media (max-width: 840px) {
  .release-stage { padding: 92px 16px 48px; }
  .release-grid { display: block; }
  .release-rail { display: none; }
  .release-mobile-switcher {
    width: min(720px, 100%);
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--card);
    color: var(--ink-2);
    font-size: 12px;
    font-weight: 700;
  }
  .release-mobile-switcher select { min-width: 130px; padding: 7px 28px 7px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg-soft); color: var(--ink); font: inherit; }
  .release-paper { width: min(720px, 100%); margin: 0 auto; border-radius: 15px; }
  .release-hero { padding: 38px 28px 34px; }
  .release-hero::after { left: 28px; right: 28px; }
  .release-section { padding: 40px 28px 0; }
  .release-guide-grid, .release-change-list { grid-template-columns: 1fr; }
  .release-download { margin: 44px 28px 28px; padding: 26px; flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .release-hero h1 { font-size: 34px; }
  .release-highlight { grid-template-columns: 1fr; gap: 8px; padding: 20px; }
  .release-highlight__index { display: none; }
  .release-item-meta { align-items: flex-start; flex-direction: column; gap: 0; }
  .release-item-meta .release-item-targets { justify-content: flex-start; }
  .release-section h2 { font-size: 23px; }
  .release-download__actions { align-items: flex-start; flex-direction: column; }
  .release-footer { width: calc(100% - 32px); flex-wrap: wrap; }
  .release-footer > span { order: 3; width: 100%; margin: 0; }
}

.release-channel-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin: 14px 0 18px;
}

.release-channel-tabs a {
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  padding: 7px 10px;
  text-align: center;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.release-channel-tabs a:hover {
  border-color: color-mix(in oklch, var(--accent) 40%, var(--line));
  color: var(--accent-deep);
}

.release-channel-tabs a.active {
  background: var(--accent-soft);
  border-color: color-mix(in oklch, var(--accent) 46%, var(--line));
  color: var(--accent-deep);
}

.release-channel-tabs a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.release-builds {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.release-builds span {
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 6px 10px;
}

@media (prefers-reduced-motion: reduce) {
  .release-version-link, .release-guide, .release-channel-tabs a { transition: none; }
}