:root {
  color-scheme: light;
  --background: #f7f6ef;
  --surface: #ffffff;
  --ink: #0b2c25;
  --muted: #58726a;
  --line: #d9e2dd;
  --accent: #18cdb2;
  --accent-soft: #e0f8f2;
}

* {
  box-sizing: border-box;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--ink);
}

body {
  margin: 0;
}

a {
  color: #0b6f61;
}

.site {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.masthead {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.masthead img {
  width: 64px;
  height: 64px;
}

.brand {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 24px 0 0;
}

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  text-decoration: none;
  font-weight: 600;
}

main {
  padding-top: 34px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  margin: 0 0 18px;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1 {
  margin: 0 0 12px;
  font-size: 34px;
  line-height: 1.2;
}

h2 {
  margin: 0 0 14px;
  font-size: 24px;
}

h3 {
  margin: 24px 0 10px;
  font-size: 18px;
}

p,
li {
  color: var(--muted);
  line-height: 1.72;
}

ul {
  padding-left: 22px;
}

.meta {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.footer {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 720px) {
  .site {
    width: min(100% - 24px, 920px);
    padding-top: 24px;
  }

  .masthead {
    align-items: flex-start;
  }

  .brand {
    font-size: 26px;
  }

  h1 {
    font-size: 28px;
  }

  .panel {
    padding: 20px;
  }

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