:root {
  --bg: #F7F2E8;
  --card: #FFFCF6;
  --green: #4F6F52;
  --green-soft: #DDE8D6;
  --text: #2E3530;
  --text-2: #6F7569;
  --line: #E8E1D3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1B1D1A;
    --card: #262924;
    --green: #93B88E;
    --green-soft: #34432F;
    --text: #F1EFE8;
    --text-2: #B4B8AC;
    --line: #3A3E37;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Nunito", ui-rounded, -apple-system, system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 16px 64px;
}

header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}

header a {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

header img {
  width: 56px;
  height: 56px;
  border-radius: 13px;
}

header span {
  font-weight: 800;
  font-size: 22px;
}

h1 {
  font-size: 34px;
  line-height: 1.15;
  margin: 0 0 8px;
}

h2 {
  font-size: 21px;
  margin: 32px 0 8px;
}

.muted { color: var(--text-2); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px 22px;
  margin: 24px 0;
}

.card.soft {
  background: var(--green-soft);
  border-color: transparent;
}

a { color: var(--green); font-weight: 700; }

ul { padding-left: 22px; }
li { margin: 6px 0; }

.button {
  display: inline-block;
  background: var(--green);
  color: var(--bg);
  padding: 12px 22px;
  border-radius: 999px;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 15px;
}