:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-muted: #eef3f8;
  --text: #1e2a36;
  --muted: #516173;
  --border: #d8e0ea;
  --accent: #234f7a;
  --accent-soft: #e7f0f8;
  --warn: #7a4f10;
  --warn-bg: #fff7e6;
  --code-bg: #17212b;
  --code-text: #e8eef5;
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: var(--accent);
}

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

header.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header-inner,
main,
.footer-inner {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  color: var(--text);
  text-decoration: none;
}

.brand strong {
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}

.brand span {
  color: var(--muted);
  font-size: 0.92rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

nav a {
  color: var(--text);
  text-decoration: none;
  padding: 6px 8px;
  border-radius: 8px;
}

nav a:hover,
nav a:focus,
nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent);
}

main {
  padding: 36px 0 52px;
}

.hero,
.card,
.notice {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(31, 45, 61, 0.05);
}

.hero {
  padding: 34px;
  margin-bottom: 24px;
}

.hero p {
  max-width: 840px;
  font-size: 1.08rem;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h2 {
  font-size: 1.45rem;
}

h3 {
  font-size: 1.08rem;
}

p {
  margin: 0 0 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card,
.notice {
  padding: 24px;
  margin-bottom: 18px;
}

.notice {
  background: var(--surface-muted);
}

.notice.warning {
  background: var(--warn-bg);
  border-color: #ecd28f;
  color: var(--warn);
}

ul,
ol {
  margin: 0 0 12px 1.25rem;
  padding: 0;
}

li + li {
  margin-top: 6px;
}

.flow {
  overflow-x: auto;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 18px;
  border-radius: 12px;
  font-size: 0.95rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 4px;
}

th,
td {
  text-align: left;
  vertical-align: top;
  border: 1px solid var(--border);
  padding: 10px 12px;
}

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

code {
  background: var(--surface-muted);
  padding: 2px 5px;
  border-radius: 5px;
  font-size: 0.95em;
}

footer.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  color: var(--muted);
}

.footer-inner {
  padding: 22px 0;
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

@media (max-width: 760px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .hero {
    padding: 24px;
  }

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