/* TowCheck — clean, trustworthy design. Mobile-first, no frameworks. */
:root {
  --navy: #1b2a41;
  --navy-dark: #121d2e;
  --slate: #4a5a73;
  --muted: #6b7a93;
  --bg: #f6f8fb;
  --card: #ffffff;
  --line: #e2e8f2;
  --accent: #c67c1a;
  --accent-dark: #a5660f;
  --green: #1e7e46;
  --green-bg: #e9f6ee;
  --amber: #9a6206;
  --amber-bg: #fdf3e0;
  --red: #b3261e;
  --red-bg: #fdecea;
  --radius: 10px;
  --maxw: 960px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--navy);
  background: var(--bg);
  line-height: 1.6;
}
a { color: #2456a6; }
a:hover { text-decoration: underline; }

/* Header / nav */
.site-header { background: var(--navy-dark); color: #fff; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; padding: 0.9rem 1.25rem; }
.brand { font-weight: 700; font-size: 1.25rem; color: #fff; text-decoration: none; }
.brand span { color: var(--accent); }
.site-nav a { color: #cdd8e8; text-decoration: none; margin-left: 1.1rem; font-size: 0.95rem; }
.site-nav a:hover { color: #fff; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }

/* Hero */
.hero { background: var(--navy); color: #fff; padding: 2.5rem 0 2rem; }
.hero h1 { margin: 0 0 0.6rem; font-size: 1.9rem; line-height: 1.25; }
.hero p { margin: 0; color: #cdd8e8; max-width: 44rem; font-size: 1.05rem; }

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: 0 1px 3px rgba(27,42,65,0.06);
}
.card h2 { margin-top: 0; }

/* Tabs */
.tabs { display: flex; gap: 0.5rem; margin-bottom: 1.25rem; }
.tabs button {
  flex: 1; padding: 0.7rem; border: 1px solid var(--line); background: #eef2f8;
  border-radius: 8px; font-size: 1rem; cursor: pointer; color: var(--slate); font-weight: 600;
}
.tabs button.active { background: var(--navy); color: #fff; border-color: var(--navy); }

/* Forms */
.field { margin-bottom: 1rem; }
.field label { display: block; font-weight: 600; margin-bottom: 0.3rem; }
.field .hint { display: block; font-weight: 400; color: var(--muted); font-size: 0.88rem; margin-top: 0.2rem; }
.field input, .field select {
  width: 100%; padding: 0.65rem 0.75rem; font-size: 1rem;
  border: 1px solid #b9c4d8; border-radius: 8px; background: #fff; color: var(--navy);
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
.field input:disabled { background: #eef1f6; color: var(--muted); }
.grid2 { display: grid; grid-template-columns: 1fr; gap: 0 1rem; }
@media (min-width: 640px) { .grid2 { grid-template-columns: 1fr 1fr; } }

.checkline { display: flex; gap: 0.6rem; align-items: flex-start; margin: 0.9rem 0; font-size: 0.95rem; }
.checkline input { margin-top: 0.3rem; }

.btn {
  display: inline-block; width: 100%; padding: 0.85rem 1.25rem; font-size: 1.1rem; font-weight: 700;
  color: #fff; background: var(--accent); border: none; border-radius: 8px; cursor: pointer;
}
.btn:hover { background: var(--accent-dark); }
.btn-ghost {
  width: auto; background: transparent; color: var(--navy); border: 1px solid var(--line);
  font-size: 0.95rem; padding: 0.5rem 1rem; margin-top: 0.75rem;
}
.btn-ghost:hover { background: #eef2f8; }

.spec-note {
  background: #eef4fd; border: 1px solid #c9d9f2; border-radius: 8px;
  padding: 0.9rem 1rem; margin-top: 1rem; font-size: 0.93rem;
}
.spec-note .row { display: flex; justify-content: space-between; padding: 0.15rem 0; }
.spec-note .verify { color: var(--amber); font-weight: 700; }

/* Results */
.verdict { border-radius: var(--radius); padding: 1.25rem 1.5rem; margin-bottom: 1.25rem; }
.verdict h2 { margin: 0 0 0.4rem; font-size: 1.4rem; }
.verdict p { margin: 0; }
.verdict-yes { background: var(--green-bg); border: 2px solid var(--green); }
.verdict-yes h2 { color: var(--green); }
.verdict-marginal { background: var(--amber-bg); border: 2px solid var(--amber); }
.verdict-marginal h2 { color: var(--amber); }
.verdict-no { background: var(--red-bg); border: 2px solid var(--red); }
.verdict-no h2 { color: var(--red); }
.verdict-error { background: var(--red-bg); border: 2px solid var(--red); }
.verdict-error h2 { color: var(--red); }

.check { border: 1px solid var(--line); border-radius: 8px; padding: 1rem 1.1rem; margin-bottom: 0.8rem; background: #fff; }
.check-head { display: flex; align-items: baseline; gap: 0.6rem; flex-wrap: wrap; }
.check-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.6rem; height: 1.6rem; border-radius: 50%; font-weight: 700; flex: none;
}
.check-pass .check-icon { background: var(--green-bg); color: var(--green); }
.check-warn .check-icon { background: var(--amber-bg); color: var(--amber); }
.check-fail .check-icon { background: var(--red-bg); color: var(--red); }
.check-pass { border-left: 4px solid var(--green); }
.check-warn { border-left: 4px solid var(--amber); }
.check-fail { border-left: 4px solid var(--red); }
.check-detail { margin-left: auto; color: var(--muted); font-size: 0.88rem; }
.check p { margin: 0.5rem 0 0; }

.numbers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin: 1.25rem 0; }
.numbers > div { background: #eef2f8; border-radius: 8px; padding: 0.8rem; text-align: center; }
.numbers span { display: block; font-size: 0.8rem; color: var(--muted); }
.numbers strong { font-size: 1.25rem; color: var(--navy); }

.disclaimer {
  background: #fff8e8; border: 1px solid #ecd9a0; border-radius: 8px;
  padding: 0.9rem 1.1rem; font-size: 0.92rem; margin: 1.25rem 0; color: #5c4a12;
}

.gear { border-top: 1px solid var(--line); margin-top: 1.25rem; padding-top: 1rem; }
.gear h3 { margin: 0 0 0.5rem; font-size: 1.05rem; }
.gear ul { margin: 0; padding-left: 1.2rem; }
.gear li { margin-bottom: 0.4rem; font-size: 0.95rem; }

/* Ad slot placeholder */
.ad-slot {
  border: 2px dashed #b9c4d8; border-radius: 8px; background: #f1f4f9;
  color: var(--muted); text-align: center; padding: 1.5rem 1rem; margin: 1.5rem 0; font-size: 0.85rem;
}

/* Content pages */
.prose h2 { margin-top: 1.8rem; }
.prose ul, .prose ol { padding-left: 1.4rem; }
.faq details { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 0.6rem; background: #fff; }
.faq summary { padding: 0.8rem 1rem; font-weight: 600; cursor: pointer; }
.faq details p { padding: 0 1rem 0.9rem; margin: 0; }

.page-list { display: grid; gap: 1rem; grid-template-columns: 1fr; margin: 1.5rem 0; }
@media (min-width: 640px) { .page-list { grid-template-columns: repeat(3, 1fr); } }
.page-list a {
  display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.2rem; text-decoration: none; color: var(--navy);
}
.page-list a:hover { border-color: var(--accent); }
.page-list strong { display: block; margin-bottom: 0.3rem; }
.page-list span { color: var(--muted); font-size: 0.92rem; }

/* Footer */
.site-footer { background: var(--navy-dark); color: #9fb0c9; margin-top: 3rem; padding: 2rem 0; font-size: 0.9rem; }
.site-footer a { color: #cdd8e8; }
.site-footer p { margin: 0.4rem 0; }

@media (max-width: 560px) {
  .hero h1 { font-size: 1.5rem; }
  .numbers { grid-template-columns: 1fr; }
  .site-nav a { margin-left: 0.7rem; }
}