/* The www shell stylesheet — the whole surface's presentation (#326 ruling ④: zero JS; hand-rolled). */
:root {
  --ink: #1e2227;
  --soft: #5c6670;
  --line: #e3e6e9;
  --accent: #2f6f4f;
}
* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  margin: 0 auto;
  max-width: 42rem;
  padding: 2rem 1.25rem 4rem;
  line-height: 1.6;
}
header .brand { font-weight: 700; letter-spacing: 0.02em; }
header .brand a { color: inherit; text-decoration: none; }
h1 { font-size: 1.8rem; line-height: 1.25; margin: 1.5rem 0 1rem; }
a { color: var(--accent); }
ul { padding-left: 1.25rem; }
li { margin: 0.4rem 0; }
form p { margin: 0.9rem 0; }
label { color: var(--soft); font-size: 0.95rem; }
input, textarea {
  width: 100%;
  font: inherit;
  color: inherit;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}
button {
  font: inherit;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
.cta {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}
footer { margin-top: 3rem; border-top: 1px solid var(--line); color: var(--soft); font-size: 0.9rem; }