:root {
  --bg: #f7f8fb;
  --text: #1f2937;
  --muted: #4b5563;
  --card: #ffffff;
  --line: #dbe2ea;
  --brand: #0f766e;
  --ok: #166534;
  --ok-bg: #dcfce7;
  --err: #991b1b;
  --err-bg: #fee2e2;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.55; }
a { color: #0f5ea8; }
.container { max-width: 980px; margin: 0 auto; padding: 0 16px; }
.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.nav { display: flex; justify-content: space-between; align-items: center; min-height: 64px; gap: 12px; }
.nav nav { display: flex; gap: 14px; flex-wrap: wrap; }
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
.main-content { padding: 24px 16px 40px; }
.breadcrumbs { font-size: 14px; margin-bottom: 12px; color: var(--muted); }
.hero { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
section { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; margin-bottom: 14px; }
.btn { display: inline-block; margin-top: 10px; background: var(--brand); color: #fff; text-decoration: none; padding: 10px 14px; border-radius: 8px; font-weight: 600; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.card { border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.disclaimer { border-left: 4px solid #b45309; background: #fffbeb; padding: 12px; border-radius: 8px; margin-top: 16px; }
.site-footer { border-top: 1px solid var(--line); background: #fff; }
.footer-row { min-height: 58px; display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 14px; color: var(--muted); }
.prose h2, .prose h3 { margin-top: 1.2em; }

.signupSection h2 { margin-top: 0; }
.signupForm { display: grid; gap: 10px; max-width: 520px; }
.signupForm label { display: grid; gap: 6px; font-weight: 600; }
.signupForm input[type="email"],
.signupForm input[type="text"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
}
.signupForm button {
  width: fit-content;
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--brand);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.signupForm button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}
.signupOk,
.signupErr {
  margin: 0;
  border-radius: 8px;
  padding: 8px 10px;
}
.signupOk { color: var(--ok); background: var(--ok-bg); }
.signupErr { color: var(--err); background: var(--err-bg); }
.hp { display: none; }

@media (max-width: 640px) {
  .nav { align-items: flex-start; padding: 10px 0; }
}