:root {
  --bg: #f6f7fc;
  --card: #ffffff;
  --text: #1c3a82;
  --muted: #5f6c94;
  --accent: #6c52d6;
  --line: #e3e6f2;
  --soft: #eceef7;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1530;
    --card: #172044;
    --text: #eef1fb;
    --muted: #9aa5c8;
    --accent: #9f8cf0;
    --line: #26305a;
    --soft: #1e2952;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.6 -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.brand img {
  width: 28px;
  height: 34px;
}

.brand a {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  font-size: 15px;
}

.bar {
  height: 4px;
  border-radius: 2px;
  margin: 14px 0 24px;
  background: linear-gradient(90deg, #36b8c6, #6c52d6, #9853d0, #fa8863);
}

h1 {
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 8px 0 4px;
}

h2 {
  font-size: 20px;
  margin: 36px 0 8px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 24px;
}

.lead {
  font-size: 18px;
}

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

ul {
  padding-left: 20px;
}

li {
  margin: 6px 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 4px 20px;
  margin: 16px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  display: block;
  overflow-x: auto;
}

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

th {
  background: var(--soft);
}

.foot {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

h3 {
  font-size: 17px;
  margin: 24px 0 4px;
}

.lang {
  margin: -12px 0 8px;
  font-size: 14px;
  color: var(--muted);
}

.todo {
  background: #fff3a8;
  color: #6b4e00;
  padding: 0 4px;
  border-radius: 4px;
}