:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --text: #1b1b1f;
  --muted: #5f6068;
  --border: #e6e5e0;
  --accent: #2f7fe6;
  --accent-soft: #e6f0fd;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121214;
    --surface: #1b1b1f;
    --text: #ececee;
    --muted: #a0a1a8;
    --border: #2c2c32;
    --accent: #5b9df0;
    --accent-soft: #15213a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
main {
  max-width: 680px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 20px;
}
.brand img { width: 32px; height: 32px; border-radius: 8px; display: block; }

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}
nav a {
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.875rem;
}
nav a:hover { border-color: var(--accent); color: var(--accent); }

h1 {
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
h2 {
  font-size: 1.25rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 40px 0 10px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
h3 { font-size: 1rem; margin: 24px 0 6px; }
.meta { color: var(--muted); margin: 0 0 28px; }
ul, ol { padding-left: 1.4em; }
li { margin: 4px 0; }
li::marker { color: var(--muted); }

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin: 16px 0;
}
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td {
  text-align: left;
  vertical-align: top;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
tr:last-child td { border-bottom: none; }
th { color: var(--muted); font-weight: 600; background: var(--accent-soft); }

ol.steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 16px 0;
  display: grid;
  gap: 10px;
}
ol.steps li {
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px 12px 52px;
  margin: 0;
  position: relative;
}
ol.steps li::before {
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 12px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  display: grid;
  place-items: center;
}

.cards {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: grid;
  gap: 10px;
}
.cards li { margin: 0; }
.cards a {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
}
.cards a:hover { border-color: var(--accent); color: var(--accent); }
.cards span { display: block; color: var(--muted); font-weight: 400; font-size: 0.9rem; }

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}
footer a { color: var(--muted); }

@media (max-width: 480px) {
  main { padding-top: 24px; }
  h1 { font-size: 1.7rem; }
}