:root {
  --bg: #E3ECCF;
  --ink: #24331A;
  --muted: #5D7046;
  --jar: #F7FAF0;
  --line: #BCD196;
  --accent: #4F7F24;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141D0E;
    --ink: #E3ECCF;
    --muted: #A3B78A;
    --jar: #1C2815;
    --line: #3D5426;
    --accent: #8DB654;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.55 ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 40px 16px 64px; }
a { color: var(--accent); }
.logo { font-size: 56px; font-weight: 700; line-height: 1; margin: 0; }
.logo span { color: var(--accent); }
.promise { color: var(--muted); margin: 8px 0 0; }
.card {
  background: var(--jar);
  border: 2px solid var(--line);
  border-radius: 24px;
  padding: 8px 24px;
  margin-top: 24px;
}
h1 { font-size: 32px; margin: 32px 0 8px; }
h2 { font-size: 22px; margin: 24px 0 4px; }
.lang { color: var(--muted); font-size: 15px; }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 16px; }
footer { color: var(--muted); font-size: 15px; margin-top: 40px; }