:root {
  color-scheme: light dark;
  --background: #0c0d10;
  --surface: #17191e;
  --surface-strong: #20232a;
  --text: #f5f6f8;
  --muted: #b9bec8;
  --accent: #ff453a;
  --accent-soft: rgba(255, 69, 58, 0.13);
  --border: #343841;
  --link: #64a8ff;
  --max-width: 920px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

a {
  color: var(--link);
  text-underline-offset: 0.18em;
}

a:hover,
a:focus-visible {
  color: #9ac7ff;
}

a:focus-visible {
  outline: 3px solid var(--link);
  outline-offset: 4px;
  border-radius: 3px;
}

.site-header,
.site-footer,
main {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 26px 18px;
  border-bottom: 1px solid var(--border);
}

.brand {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 0.94rem;
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
}

main {
  padding-block: 52px 64px;
}

h1,
h2,
h3 {
  line-height: 1.22;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 760px;
  margin: 0 0 14px;
  font-size: clamp(2.2rem, 6vw, 4.2rem);
}

h2 {
  margin: 44px 0 12px;
  font-size: clamp(1.45rem, 3vw, 2rem);
}

h3 {
  margin: 26px 0 8px;
  font-size: 1.08rem;
}

p,
li {
  max-width: 78ch;
}

ul,
ol {
  padding-left: 1.35rem;
}

li + li {
  margin-top: 0.38rem;
}

.eyebrow,
.updated,
.muted {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.83rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.17rem;
}

.updated {
  margin-top: 8px;
  font-size: 0.94rem;
}

.notice {
  margin: 30px 0;
  padding: 20px 22px;
  background: var(--accent-soft);
  border: 1px solid rgba(255, 69, 58, 0.42);
  border-radius: 14px;
}

.notice h2,
.notice h3 {
  margin-top: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.card {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.card h2,
.card h3 {
  margin-top: 0;
}

.card p:last-child {
  margin-bottom: 0;
}

.summary {
  margin: 30px 0;
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.summary h2 {
  margin-top: 0;
}

.table-wrap {
  overflow-x: auto;
  margin-block: 20px;
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}

th,
td {
  padding: 13px 14px;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-strong);
}

code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.9em;
}

.site-footer {
  padding-block: 24px 40px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-bottom: 12px;
}

@media (max-width: 680px) {
  body {
    font-size: 16px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding-block: 38px 50px;
  }
}

@media (prefers-color-scheme: light) {
  :root {
    --background: #ffffff;
    --surface: #f6f6f8;
    --surface-strong: #eceef2;
    --text: #17181b;
    --muted: #5f6570;
    --accent-soft: rgba(215, 0, 21, 0.07);
    --border: #d9dce2;
    --link: #075fc7;
  }
}