:root {
  --bg: #f2f4ef;
  --ink: #1a2118;
  --muted: #4f5a49;
  --card: #fcfdf9;
  --line: #d5dbc9;
  --accent: #3b6d2d;
  --soft: #e5eedc;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "DM Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 0% 0%, #e7efdd 0%, transparent 40%),
    var(--bg);
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(1000px, calc(100% - 2rem)); margin: 0 auto; }

.top {
  position: sticky;
  top: 0;
  background: rgba(242, 244, 239, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  z-index: 5;
}
.bar {
  min-height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  font-family: "Libre Baskerville", serif;
  font-size: 1.3rem;
}
nav { display: flex; gap: 1rem; color: var(--muted); }
nav a:hover { color: var(--accent); }

.hero { padding: 4.3rem 0 2rem; }
.eyebrow {
  margin: 0 0 0.75rem;
  display: inline-block;
  background: var(--soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
}
h1, h2, h3 { font-family: "Libre Baskerville", serif; margin: 0 0 0.7rem; line-height: 1.2; }
h1 { font-size: clamp(1.9rem, 4vw, 3rem); max-width: 16ch; }
.lead { max-width: 60ch; color: var(--muted); margin: 0; font-size: 1.05rem; }
.offer {
  margin: 1.1rem 0 0;
  max-width: 60ch;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(59, 109, 45, 0.08);
  color: var(--ink);
  font-size: 0.98rem;
}
.block { padding: 2rem 0; }

.bullets { color: var(--muted); padding-left: 1.1rem; }
.bullets li { margin: 0.4rem 0; }

.modes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
.modes article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.15rem;
}
.modes p { margin: 0; color: var(--muted); }

.tip {
  background: #243521;
  color: #f3f8ed;
  border-radius: 22px;
  padding: 1.6rem 1.8rem;
  margin: 1rem auto 2rem;
}
.tip p { margin: 0; color: #d7e5c9; }

details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  margin: 0.6rem 0;
}
summary { cursor: pointer; font-weight: 700; }
details p { margin: 0.6rem 0 0; color: var(--muted); }

.foot {
  border-top: 1px solid var(--line);
  background: #e6eadf;
  padding: 2rem 0;
}
.fine { color: var(--muted); font-size: 0.9rem; }

@media (max-width: 800px) {
  .modes { grid-template-columns: 1fr; }
  nav { display: none; }
}