* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(160deg, var(--link-tint), var(--paper)) fixed;
  font-family: var(--text);
  color: var(--ink);
  line-height: 1.6;
}
.nav {
  max-width: 920px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav img { width: 32px; height: 32px; border-radius: 22%; }
.nav a.brand { font-weight: 700; font-size: 1.1rem; color: var(--ink); text-decoration: none; }
.nav .spacer { flex: 1; }
.nav a.app-link {
  background: var(--ink);
  color: var(--on-ink);
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
}
main {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px;
}
.article {
  background: var(--paper);
  border-radius: 20px;
  padding: 40px 36px;
  box-shadow: 0 12px 40px rgba(0, 1, 0, 0.10);
}
.article h1 { margin-top: 0; font-size: 1.7rem; }
.article h2 { font-size: 1.2rem; margin-top: 2em; }
.article .updated { color: var(--ink-muted); font-size: 0.9rem; }
.article table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
.article th, .article td { border: 1px solid var(--link-tint); padding: 8px 10px; text-align: left; vertical-align: top; }
.article th { background: rgba(180, 210, 231, 0.35); }
.article a { color: #23698a; }
.card-logos { display: flex; gap: 10px; align-items: center; }
form.contact { display: flex; flex-direction: column; gap: 12px; max-width: 480px; }
form.contact input, form.contact textarea {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--ink-muted);
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
}
form.contact input:focus, form.contact textarea:focus {
  outline: none;
  border-color: var(--link);
  box-shadow: 0 0 0 3px rgba(148, 197, 204, 0.35);
}
form.contact button {
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  background: var(--ink);
  color: var(--on-ink);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
form.contact button:disabled { opacity: 0.5; cursor: not-allowed; }
form.contact .message { min-height: 20px; font-size: 0.9rem; }
form.contact .message.success { color: #2a7d4f; }
form.contact .message.error { color: #c0392b; }
footer {
  max-width: 920px;
  margin: 0 auto;
  padding: 28px 24px 40px;
  font-size: 0.88rem;
  color: var(--ink-muted);
}
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 10px; }
footer a { color: var(--ink); text-decoration: none; }
footer a:hover { text-decoration: underline; }
@media (max-width: 640px) {
  .article { padding: 28px 20px; }
}