/* TunnelOps OS — shared styles. Plain CSS, no framework. */
:root {
  --navy: #16283a;
  --navy-2: #1f3550;
  --orange: #f97316;
  --orange-dark: #d9610b;
  --ink: #1f2933;
  --muted: #5b6b7c;
  --line: #dfe6ee;
  --bg: #ffffff;
  --soft: #f4f7fa;
  --tint: #fff7ed;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Helvetica, Arial, system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
}

/* ---------- header ---------- */
.site-header {
  background: var(--navy);
  color: #fff;
  border-top: 6px solid var(--orange);
}
.header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 22px 20px 18px;
}
.wordmark {
  margin: 0;
  font-size: 26px;
  letter-spacing: 3px;
  color: var(--orange);
  font-weight: 700;
}
.wordmark a { color: var(--orange); text-decoration: none; }
.tagline {
  margin: 6px 0 0;
  font-style: italic;
  color: #aeb9c6;
  font-size: 15px;
}
.main-nav {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
}
.main-nav a {
  color: #dbe3ec;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
}
.main-nav a:hover { color: var(--orange); }

/* ---------- layout ---------- */
.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 34px 20px 60px;
}
h1 {
  color: var(--navy);
  font-size: 34px;
  line-height: 1.25;
  margin: 0 0 10px;
}
h2 {
  color: var(--navy);
  font-size: 23px;
  margin: 34px 0 12px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--orange);
}
h3 {
  color: var(--navy-2);
  font-size: 18px;
  margin: 22px 0 8px;
}
.lede { font-size: 19px; color: var(--ink); }
.small { font-size: 14px; color: var(--muted); }

/* ---------- checklist cards ---------- */
.check-group {
  background: var(--soft);
  border: 1px solid var(--line);
  border-left: 6px solid var(--orange);
  border-radius: 8px;
  padding: 16px 18px 10px;
  margin: 18px 0;
}
.check-group h3 {
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--navy);
}
ul.checklist {
  list-style: none;
  margin: 0 0 10px;
  padding: 0;
}
ul.checklist li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 9px 0;
  border-top: 1px solid var(--line);
}
ul.checklist li:first-child { border-top: none; }
ul.checklist input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 3px;
  flex: 0 0 auto;
  accent-color: var(--orange);
  cursor: pointer;
}
ul.checklist .task { font-weight: 700; color: var(--navy); }
ul.checklist .std { display: block; font-weight: 400; color: var(--muted); font-size: 15px; }

/* ---------- CTA boxes ---------- */
.cta-box {
  border-radius: 10px;
  padding: 24px 24px 20px;
  margin: 30px 0;
}
.cta-free {
  background: var(--tint);
  border: 2px solid var(--orange);
}
.cta-paid {
  background: var(--navy);
  color: #fff;
}
.cta-paid h2, .cta-paid h3 { color: #fff; border: none; margin-top: 0; padding: 0; }
.cta-free h2, .cta-free h3 { border: none; margin-top: 0; padding: 0; }
.cta-box p { margin: 8px 0; }
.cta-paid p { color: #dbe3ec; }
.btn {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 12px 26px;
  border-radius: 8px;
  margin-top: 10px;
  font-size: 17px;
}
.btn:hover { background: var(--orange-dark); }
.btn-outline {
  display: inline-block;
  border: 2px solid var(--orange);
  color: var(--orange-dark);
  font-weight: 700;
  text-decoration: none;
  padding: 10px 24px;
  border-radius: 8px;
  margin-top: 10px;
}
.btn-outline:hover { background: var(--orange); color: #fff; }

/* ---------- product cards (homepage) ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 18px 0;
}
.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  background: #fff;
}
.card.free { border-top: 5px solid var(--orange); }
.card.paid { border-top: 5px solid var(--navy); }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 6px 0 10px; font-size: 15px; color: var(--muted); }
.card .price { font-weight: 700; color: var(--navy); font-size: 16px; }
.card a.card-link { font-weight: 700; color: var(--orange-dark); text-decoration: none; }
.card a.card-link:hover { text-decoration: underline; }

/* ---------- footer ---------- */
.site-footer {
  background: var(--navy);
  color: #aeb9c6;
  font-size: 14px;
}
.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 26px 20px;
}
.site-footer strong { color: #fff; }
.site-footer a { color: var(--orange); }

/* ---------- print: checklists print clean ---------- */
@media print {
  .site-header .main-nav, .cta-box, .site-footer { display: none; }
  .wrap { padding: 0; max-width: 100%; }
  body { font-size: 13px; }
  h1 { font-size: 24px; }
}

@media (max-width: 560px) {
  h1 { font-size: 27px; }
  .wordmark { font-size: 22px; }
}