:root {
  color-scheme: light;
  --ink: #18332c;
  --muted: #52655d;
  --green: #176b55;
  --green-light: #e8f3ee;
  --line: #dce7e1;
  --paper: #ffffff;
  --backdrop: #f4f7f5;
  --danger: #a52b25;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 20px 14px 40px;
  background: var(--backdrop);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.9;
}

main {
  width: min(100%, 820px);
  margin: 0 auto;
  padding: clamp(20px, 5vw, 42px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: 0 12px 38px #173d2b0c;
}

.brand { color: var(--green); font-weight: 850; letter-spacing: .2px; }
h1 { margin: 8px 0 3px; font-size: clamp(25px, 5vw, 35px); line-height: 1.4; }
.updated { margin: 0 0 24px; color: var(--muted); font-size: 13px; }
h2 { margin: 28px 0 8px; font-size: 19px; line-height: 1.55; }
p, li { font-size: 15px; }
p { margin: 10px 0; }
ul { padding-inline-start: 24px; }
a { color: var(--green); text-underline-offset: 3px; }
.nav { display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 13px 15px; border-radius: 14px; background: var(--green-light); }
.nav a { font-size: 14px; font-weight: 700; }
.note { padding: 14px 16px; border-inline-start: 4px solid var(--green); border-radius: 10px; background: #f3f8f5; color: var(--muted); }
footer { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
label { display: block; margin: 17px 0 6px; font-weight: 750; }
input[type="email"], input[type="text"] { width: 100%; min-height: 49px; padding: 10px 13px; border: 1px solid #bdcec5; border-radius: 11px; background: white; color: var(--ink); font: inherit; direction: ltr; text-align: left; }
button { min-height: 48px; margin-top: 12px; padding: 10px 17px; border: 0; border-radius: 12px; background: var(--green); color: white; font: inherit; font-weight: 750; cursor: pointer; }
button:disabled { cursor: wait; opacity: .55; }
.full { width: 100%; }
.danger { background: var(--danger); }
.check { display: flex; align-items: flex-start; gap: 10px; margin-top: 18px; line-height: 1.7; }
.check input { flex: 0 0 auto; margin-top: 8px; }
.status { min-height: 27px; margin-top: 15px; color: var(--green); font-weight: 700; }
.status.error { color: var(--danger); }
.warning { padding: 13px 15px; border-radius: 12px; background: #fff2e0; color: #744414; font-size: 14px; }
[hidden] { display: none !important; }

@media (max-width: 520px) {
  body { padding: 10px 8px 24px; }
  main { border-radius: 16px; }
  p, li { font-size: 14px; }
}