:root {
  --ink: #1f2a24;
  --muted: #5b6b62;
  --paper: #f7f5f0;
  --card: #ffffff;
  --accent: #2f6b4f;
  --accent-ink: #ffffff;
  --line: #e2ded4;
  color-scheme: light;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}
a { color: var(--accent); }
.notice {
  background: var(--ink);
  color: var(--paper);
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  text-align: center;
}
header, main, footer { max-width: 60rem; margin: 0 auto; padding: 1rem; }
header { display: flex; justify-content: space-between; align-items: center; }
.brand { font-weight: 700; font-size: 1.25rem; color: var(--ink); text-decoration: none; }
nav a { margin-left: 1rem; text-decoration: none; }
.hero { padding: 3rem 0 2rem; }
.hero h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin: 0 0 0.5rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 1rem;
}
.card h3 { margin: 0 0 0.25rem; }
.price { font-weight: 700; }
.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 0.375rem;
  padding: 0.625rem 1rem;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}
form { display: grid; gap: 0.75rem; max-width: 28rem; }
label { display: grid; gap: 0.25rem; font-size: 0.875rem; color: var(--muted); }
input { font: inherit; padding: 0.5rem; border: 1px solid var(--line); border-radius: 0.375rem; }
.message { min-height: 1.5rem; color: var(--accent); }
footer { color: var(--muted); font-size: 0.875rem; }