:root {
  color-scheme: dark;
  --background: #05070c;
  --surface: #101521;
  --surface-soft: #161d2c;
  --text: #f7f9fc;
  --muted: #aeb8cb;
  --accent: #41d9ff;
  --border: rgba(255, 255, 255, 0.12);
  --max-width: 780px;
}

* {
  box-sizing: border-box;
}

html {
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  background: var(--background);
  color: var(--text);
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% -10%, rgba(34, 125, 255, 0.2), transparent 38rem),
    var(--background);
}

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

a:hover {
  text-decoration-thickness: 2px;
}

.site-header,
.site-footer,
main {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  color: var(--text);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.site-header nav {
  display: flex;
  gap: 1rem;
  font-size: 0.92rem;
}

main {
  padding-block: clamp(2.5rem, 7vw, 5rem);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
  text-wrap: balance;
}

h1 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2.35rem, 8vw, 4.75rem);
  letter-spacing: -0.055em;
}

h2 {
  margin-top: 2.75rem;
  font-size: 1.55rem;
  letter-spacing: -0.025em;
}

h3 {
  margin-top: 1.75rem;
  font-size: 1.08rem;
}

p,
li {
  color: var(--muted);
}

strong {
  color: var(--text);
}

.lede {
  max-width: 62ch;
  margin-top: 1.25rem;
  font-size: 1.12rem;
}

.updated {
  margin-top: 1.5rem;
  font-size: 0.92rem;
}

.notice {
  margin-block: 2rem;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(65, 217, 255, 0.3);
  border-radius: 0.85rem;
  background: rgba(65, 217, 255, 0.06);
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.card {
  display: block;
  min-height: 12rem;
  padding: 1.4rem;
  border: 1px solid var(--border);
  border-radius: 1.15rem;
  background: linear-gradient(145deg, var(--surface-soft), var(--surface));
  color: var(--text);
  text-decoration: none;
}

.card:hover {
  border-color: rgba(65, 217, 255, 0.48);
  transform: translateY(-1px);
}

.card h2 {
  margin: 0 0 0.65rem;
}

.card p {
  margin: 0;
}

ul,
ol {
  padding-left: 1.3rem;
}

li + li {
  margin-top: 0.5rem;
}

.table-wrap {
  overflow-x: auto;
  margin-block: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
}

table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: rgba(16, 21, 33, 0.82);
}

th,
td {
  padding: 0.9rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

td {
  color: var(--muted);
}

tr:last-child td {
  border-bottom: 0;
}

.site-footer {
  padding-block: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .cards {
    grid-template-columns: 1fr;
  }
}