:root {
  color-scheme: light;
  --bg: #f7faf8;
  --ink: #17201b;
  --muted: #5b6a62;
  --panel: #ffffff;
  --line: #d8e3dc;
  --accent: #0f8f62;
  --accent-strong: #075f43;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, #eff8f2 0%, var(--bg) 320px);
  color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

header,
footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
}

header {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

footer {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background:
    radial-gradient(circle at 35% 30%, #ffffff 0 8%, transparent 9%),
    linear-gradient(135deg, #19c37d 0%, #87e752 54%, #ffd166 100%);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .08), 0 10px 24px rgba(15, 143, 98, .2);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
}

a {
  color: var(--accent-strong);
  font-weight: 750;
}

nav a {
  text-decoration: none;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(32px, 6vw, 46px);
  line-height: 1.04;
}

h2 {
  margin: 0 0 6px;
  color: var(--accent-strong);
  font-size: 14px;
  letter-spacing: .06em;
  line-height: 1.2;
  text-transform: uppercase;
}

p {
  margin: 0;
}

.lede {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 18px;
}

section {
  margin: 12px 0;
  padding: 15px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

small {
  color: var(--muted);
}