:root {
  --blue: #14407a;
  --blue-dark: #0c2a52;
  --accent: #c89b3c;
  --text: #1a1d24;
  --muted: #5a6270;
  --bg: #f6f7f9;
  --card: #ffffff;
  --border: #e3e6ec;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

.site-header { background: var(--blue); color: #fff; padding: 14px 0; border-bottom: 3px solid var(--accent); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.brand { color: #fff; font-weight: 800; font-size: 24px; letter-spacing: 0.5px; }
.brand-mark { color: #fff; }
.brand-hq { color: var(--accent); }
.primary-nav ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 18px; }
.primary-nav a { color: #fff; font-weight: 500; font-size: 15px; }
.primary-nav a:hover { color: var(--accent); text-decoration: none; }

.site-main { min-height: calc(100vh - 200px); }

.hero { background: linear-gradient(180deg, var(--blue) 0%, var(--blue-dark) 100%); color: #fff; padding: 70px 0 60px; }
.hero h1 { font-size: 44px; margin: 0 0 16px; line-height: 1.15; }
.hero .lead { font-size: 19px; max-width: 720px; color: #dde5f0; }
.cta-row { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 14px 22px; border-radius: 6px; font-weight: 600; font-size: 15px; border: 2px solid transparent; transition: transform 0.1s ease; cursor: pointer; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #1a1d24; }
.btn-secondary { background: transparent; color: #fff; border-color: #fff; }

.pillars { padding: 60px 20px 80px; }
.pillars h2 { font-size: 28px; margin: 0 0 28px; }
.pillar-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.pillar { background: var(--card); padding: 24px; border-radius: 8px; border: 1px solid var(--border); }
.pillar h3 { margin: 0 0 8px; font-size: 18px; color: var(--blue-dark); }
.pillar p { margin: 0; color: var(--muted); font-size: 15px; }

.page { padding: 50px 20px 80px; }
.page h1 { font-size: 34px; margin: 0 0 18px; }

.page-hero { background: linear-gradient(180deg, var(--blue) 0%, var(--blue-dark) 100%); color: #fff; padding: 48px 0 44px; }
.page-hero h1 { margin: 0 0 10px; font-size: 36px; }
.page-hero .lead { max-width: 780px; color: #dde5f0; font-size: 18px; margin: 0; }
.page-hero .crumbs { font-size: 14px; color: #a6b3c8; margin-bottom: 10px; }
.page-hero .crumbs a { color: var(--accent); }
.cond-code-large { display: inline-block; background: rgba(255,255,255,0.14); color: var(--accent); padding: 4px 10px; border-radius: 4px; font-size: 13px; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 10px; }

.systems-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.system-card { display: block; background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 22px; color: var(--text); transition: border-color 0.15s, transform 0.1s; }
.system-card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-2px); }
.system-code { color: var(--accent); font-weight: 700; font-size: 13px; letter-spacing: 0.1em; margin-bottom: 6px; }
.system-card h2 { margin: 0 0 8px; font-size: 20px; color: var(--blue-dark); }
.system-card p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.system-meta { font-size: 13px; color: var(--blue); font-weight: 600; }

.condition-list { list-style: none; padding: 0; margin: 0; }
.condition-list li { background: var(--card); border: 1px solid var(--border); border-radius: 6px; margin-bottom: 14px; padding: 18px 22px; }
.condition-list li a { display: flex; gap: 12px; align-items: baseline; margin-bottom: 6px; }
.condition-list li a:hover { text-decoration: none; }
.condition-list li a:hover .cond-name { color: var(--accent); }
.cond-code { background: var(--blue); color: #fff; padding: 2px 10px; border-radius: 3px; font-size: 13px; font-weight: 600; letter-spacing: 0.03em; font-family: ui-monospace, "SF Mono", Consolas, monospace; }
.cond-name { font-weight: 600; font-size: 17px; color: var(--blue-dark); }
.condition-list li p { margin: 0; color: var(--muted); font-size: 14px; }

.cond-article { display: grid; grid-template-columns: 1fr 280px; gap: 40px; }
.cond-article article h2 { color: var(--blue-dark); font-size: 22px; margin-top: 28px; margin-bottom: 8px; }
.cond-article article h2:first-child { margin-top: 0; }
.cond-article article p { font-size: 16px; margin: 0 0 16px; }
.callout { background: #fff8e8; border-left: 4px solid var(--accent); padding: 16px 18px; margin-top: 28px; border-radius: 4px; font-size: 15px; }
.siblings { background: var(--card); border: 1px solid var(--border); border-radius: 6px; padding: 20px; align-self: start; position: sticky; top: 20px; }
.siblings h3 { margin: 0 0 12px; font-size: 16px; color: var(--blue-dark); }
.siblings ul { list-style: none; padding: 0; margin: 0; }
.siblings li { padding: 6px 0; font-size: 14px; border-bottom: 1px solid var(--border); }
.siblings li:last-child { border-bottom: none; }

/* --------- Long-form pillar pages --------- */
.long-form { max-width: 880px; }
.long-form h2 { color: var(--blue-dark); font-size: 26px; margin-top: 38px; margin-bottom: 14px; border-bottom: 2px solid var(--border); padding-bottom: 8px; }
.long-form h3 { color: var(--blue-dark); font-size: 19px; margin-top: 22px; margin-bottom: 8px; }
.long-form p, .long-form li { font-size: 16px; }
.long-form ul, .long-form ol { padding-left: 24px; }
.long-form li { margin-bottom: 8px; }
.page-toc { background: var(--card); border: 1px solid var(--border); border-radius: 6px; padding: 18px 24px; margin-bottom: 24px; }
.page-toc strong { display: block; margin-bottom: 8px; color: var(--blue-dark); }
.page-toc ol { margin: 0; padding-left: 22px; }
.page-toc li { margin-bottom: 4px; }

.step-cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin: 20px 0; }
.step-card { background: var(--card); border: 1px solid var(--border); border-radius: 6px; padding: 18px; }
.step-card h3 { margin-top: 0; color: var(--accent); font-size: 17px; }
.step-card p { margin: 0; font-size: 14px; color: var(--muted); }

.level-card { background: var(--card); border-left: 4px solid var(--blue); padding: 16px 20px; margin: 18px 0; border-radius: 0 6px 6px 0; }
.level-card div { font-size: 14px; margin: 4px 0; }

.timeline-table, .compare-table { width: 100%; border-collapse: collapse; margin: 16px 0; background: var(--card); border-radius: 6px; overflow: hidden; border: 1px solid var(--border); }
.timeline-table th, .timeline-table td, .compare-table th, .compare-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); text-align: left; font-size: 15px; }
.timeline-table th, .compare-table th { background: var(--blue); color: #fff; font-weight: 600; }
.compare-table tr:last-child td { border-bottom: none; }

.resource-list { padding-left: 22px; }
.resource-list li { margin-bottom: 10px; }

/* --------- Calculators --------- */
.calc-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 24px; margin-bottom: 24px; }
.calc-card h2 { margin-top: 0; color: var(--blue-dark); }
.calc-card form { display: flex; flex-direction: column; gap: 14px; }
.calc-card label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; font-weight: 500; color: var(--text); }
.calc-card input { padding: 10px 12px; border: 1px solid var(--border); border-radius: 4px; font-size: 15px; font-family: inherit; }
.calc-card .btn { align-self: flex-start; }
.calc-result { margin-top: 16px; padding: 14px 18px; background: #f0f4fa; border-left: 4px solid var(--blue); border-radius: 0 4px 4px 0; font-size: 15px; }
.calc-result:empty { display: none; }

/* --------- State grid --------- */
.state-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
.state-card { background: var(--card); border: 1px solid var(--border); border-radius: 6px; padding: 14px 16px; color: var(--text); display: flex; align-items: center; gap: 12px; transition: border-color 0.12s, transform 0.08s; }
.state-card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.state-abbr { background: var(--blue); color: #fff; padding: 4px 8px; border-radius: 3px; font-weight: 700; font-size: 13px; font-family: ui-monospace, "SF Mono", Consolas, monospace; }
.state-name { font-size: 14px; font-weight: 500; }

.state-facts { background: var(--card); border: 1px solid var(--border); border-radius: 6px; padding: 20px 24px; margin-bottom: 24px; display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.state-facts div { font-size: 14px; color: var(--muted); }
.state-facts strong { color: var(--text); }

@media (max-width: 860px) {
  .cond-article { grid-template-columns: 1fr; }
  .siblings { position: static; }
}

.site-footer { background: var(--blue-dark); color: #cfd7e3; padding: 26px 0; font-size: 14px; }
.site-footer a { color: var(--accent); }
.site-footer .small { opacity: 0.7; margin-top: 6px; }

@media (max-width: 700px) {
  .hero h1 { font-size: 32px; }
  .hero .lead { font-size: 17px; }
  .page-hero h1 { font-size: 28px; }
  .long-form h2 { font-size: 22px; }
}

/* --------- CAL grid --------- */
.cal-grid { list-style: none; padding: 0; margin: 0 0 30px; display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 6px; }
.cal-grid li { background: var(--card); border: 1px solid var(--border); border-radius: 4px; padding: 10px 14px; font-size: 14px; }
.cal-grid li a { color: var(--text); display: block; }
.cal-grid li a:hover { color: var(--accent); text-decoration: none; }
.cat-count { color: var(--muted); font-weight: 400; font-size: 16px; }
.cat-desc { color: var(--muted); font-style: italic; margin-top: -8px; margin-bottom: 14px; }

/* --------- Topics grid --------- */
.topic-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.topic-card { display: block; background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 24px; color: var(--text); transition: border-color 0.15s, transform 0.1s; }
.topic-card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-2px); }
.topic-card h2 { margin: 0 0 8px; font-size: 19px; color: var(--blue-dark); }
.topic-card p { margin: 0; color: var(--muted); font-size: 14px; }

/* --------- Header CTA --------- */
.nav-cta { background: var(--accent); color: var(--blue-dark); padding: 8px 18px; border-radius: 4px; font-weight: 700; font-size: 14px; }
.nav-cta:hover { text-decoration: none; background: #d9b14c; color: var(--blue-dark); }
@media (max-width: 700px) { .nav-cta { display: none; } }

/* --------- Footer CTA band --------- */
.footer-cta { background: linear-gradient(90deg, var(--blue) 0%, var(--blue-dark) 100%); color: #fff; padding: 32px 0; margin-top: 40px; }
.footer-cta .container { display: flex; align-items: center; gap: 24px; justify-content: space-between; flex-wrap: wrap; }
.footer-cta-text { flex: 1; min-width: 300px; }
.footer-cta h3 { margin: 0 0 6px; font-size: 22px; }
.footer-cta p { margin: 0; color: #dde5f0; }

/* --------- Lead form --------- */
.lead-form { display: flex; flex-direction: column; gap: 14px; background: var(--card); border: 1px solid var(--border); padding: 28px; border-radius: 8px; }
.lead-form label { display: flex; flex-direction: column; gap: 4px; font-weight: 500; font-size: 14px; color: var(--text); }
.lead-form input, .lead-form select, .lead-form textarea { padding: 10px 12px; border: 1px solid var(--border); border-radius: 4px; font-size: 15px; font-family: inherit; }
.lead-form textarea { resize: vertical; }

/* --------- Newsletter footer --------- */
.newsletter { margin-bottom: 18px; }
.newsletter label { display: block; font-size: 14px; font-weight: 500; color: var(--accent); margin-bottom: 6px; }
.nl-row { display: flex; gap: 8px; max-width: 480px; }
.nl-row input { flex: 1; padding: 10px 12px; border: 1px solid transparent; border-radius: 4px; font-size: 15px; }
.nl-row .btn { padding: 10px 18px; white-space: nowrap; }

/* --------- FAQ --------- */
.faq-item { padding: 20px 0; border-bottom: 1px solid var(--border); }
.faq-item:last-of-type { border-bottom: none; }
.faq-item h2 { font-size: 19px; color: var(--blue-dark); margin: 0 0 8px; }
.faq-item p { margin: 0; font-size: 16px; }