:root {
  --ink: #141b2d;
  --ink-2: #4a5468;
  --ink-3: #6b7489;
  --line: #e3e7ef;
  --bg: #ffffff;
  --bg-2: #f5f7fb;
  --navy: #1d2a4d;
  --brand: #2c4bb8;
  --accent: #0f8a7e;
  --accent-bg: #e6f5f3;
  --warn-bg: #fff7e6;
  --radius: 12px;
  --max: 1140px;
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  line-height: 1.6;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); font-size: 16.5px; }
img { max-width: 100%; height: auto; }
a { color: var(--brand); }
h1, h2, h3 { font-family: Sora, Inter, sans-serif; line-height: 1.2; letter-spacing: -0.01em; color: var(--ink); }
h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); margin: 0.2em 0 0.4em; }
h2 { font-size: clamp(1.45rem, 2.8vw, 1.95rem); margin: 2.2em 0 0.6em; }
h3 { font-size: 1.15rem; margin: 1.4em 0 0.4em; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 780px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 10; }

/* header */
.site-head { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: 0; z-index: 5; }
.site-head .wrap { display: flex; align-items: center; gap: 28px; height: 66px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: Sora, sans-serif; font-weight: 800; font-size: 1.2rem; color: var(--navy); text-decoration: none; }
.logo img { width: 34px; height: 34px; border-radius: 8px; }
.nav { display: flex; gap: 22px; flex: 1; }
.nav a { color: var(--ink-2); text-decoration: none; font-weight: 600; font-size: 0.95rem; }
.nav a:hover, .nav a[aria-current] { color: var(--brand); }
.head-cta { display: flex; gap: 10px; align-items: center; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; font-size: 1.1rem; }

/* buttons */
.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 700; text-decoration: none; font-size: 0.98rem; border: 1.5px solid transparent; cursor: pointer; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--brand); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-sm { padding: 8px 14px; font-size: 0.9rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.4em 0; }

/* hero */
.hero { padding: 56px 0 40px; background: linear-gradient(180deg, var(--bg-2), #fff); border-bottom: 1px solid var(--line); }
.eyebrow { display: inline-block; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); background: var(--accent-bg); padding: 5px 12px; border-radius: 99px; }
.lead { font-size: 1.15rem; color: var(--ink-2); max-width: 760px; }
.answer { background: var(--accent-bg); border-left: 4px solid var(--accent); padding: 16px 20px; border-radius: 8px; margin: 1.4em 0; max-width: 820px; }
.answer p:last-child { margin: 0; }
.crumbs { font-size: 0.85rem; color: var(--ink-3); margin-bottom: 10px; }
.crumbs a { color: var(--ink-3); }

/* grids & cards */
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: #fff; }
.card h3 { margin-top: 0; }
.card p { color: var(--ink-2); font-size: 0.95rem; margin: 0; }
a.card { text-decoration: none; color: inherit; transition: border-color .15s, box-shadow .15s; display: block; }
a.card:hover { border-color: var(--brand); box-shadow: 0 6px 20px rgba(29, 42, 77, 0.08); }
.card .more { display: inline-block; margin-top: 10px; font-weight: 700; color: var(--brand); font-size: 0.9rem; }
.tag { display: inline-block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); margin-bottom: 6px; }
section { padding: 8px 0; }
.band { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 10px 0 40px; margin-top: 40px; }

ul.checks { list-style: none; padding: 0; }
ul.checks li { padding-left: 28px; position: relative; margin: 0 0 10px; }
ul.checks li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 800; }
.feature-list { columns: 2 300px; column-gap: 32px; }
.feature-list li { break-inside: avoid; }

/* tables */
.table-wrap { overflow-x: auto; margin: 1em 0 1.6em; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--bg-2); font-weight: 700; }
td.yes { color: var(--accent); font-weight: 600; }

/* calculators */
.calc { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; margin: 1.6em 0; }
.calc form, .calc .result { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: #fff; }
.calc .result { background: var(--bg-2); }
.field { margin-bottom: 14px; }
.field label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 5px; }
.field .hint { font-size: 0.8rem; color: var(--ink-3); }
input, select { width: 100%; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: 8px; font: inherit; background: #fff; color: var(--ink); }
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
.result table th { font-weight: 500; color: var(--ink-2); }
.result table td { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.result tr.strong th, .result tr.strong td { font-weight: 800; color: var(--ink); }
.calc-note { font-size: 0.88rem; color: var(--ink-2); background: var(--warn-bg); padding: 10px 12px; border-radius: 8px; margin-top: 12px; }
.cta-box { border: 1.5px solid var(--brand); border-radius: var(--radius); padding: 22px 24px; margin: 2em 0; background: linear-gradient(135deg, #f1f4fd, #fff); }
.cta-box h2, .cta-box h3 { margin-top: 0; }
#boq-table input { padding: 7px 8px; }
#boq-table .w-sm { width: 70px; }
#boq-table .w-md { width: 100px; }
#boq-table .amt { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.link-btn { background: none; border: none; color: #b42318; font-size: 1.2rem; cursor: pointer; }

/* faq */
details { border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; margin-bottom: 10px; background: #fff; }
summary { font-weight: 700; cursor: pointer; }
details p { margin: 10px 0 0; color: var(--ink-2); }

/* article */
.article p, .article li { color: #2a3348; }
.article h2 { font-size: 1.5rem; }
.toc { background: var(--bg-2); border-radius: 10px; padding: 14px 20px; font-size: 0.95rem; }
.toc ol { margin: 6px 0 0; padding-left: 20px; }
.meta { color: var(--ink-3); font-size: 0.88rem; }

/* pricing strip */
.plans { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.plan .price { font-family: Sora, sans-serif; font-size: 1.9rem; font-weight: 800; }
.plan .price small { font-size: 0.9rem; color: var(--ink-3); font-weight: 600; }

/* footer */
.site-foot { margin-top: 64px; background: var(--navy); color: #c7cee0; padding: 44px 0 28px; font-size: 0.92rem; }
.site-foot a { color: #e6eaf5; text-decoration: none; }
.site-foot a:hover { text-decoration: underline; }
.foot-grid { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.foot-grid h3 { color: #fff; font-size: 0.95rem; margin: 0 0 10px; }
.foot-grid ul { list-style: none; padding: 0; margin: 0; }
.foot-grid li { margin-bottom: 7px; }
.foot-legal { border-top: 1px solid rgba(255,255,255,.12); margin-top: 32px; padding-top: 18px; display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; }

@media (max-width: 860px) {
  .nav, .head-cta .btn-ghost { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .nav-open .nav { display: flex; flex-direction: column; position: absolute; top: 66px; left: 0; right: 0; background: #fff; padding: 16px 20px; border-bottom: 1px solid var(--line); gap: 14px; }
  .calc { grid-template-columns: minmax(0, 1fr); }
  .result table td { white-space: normal; }
  .head-cta { margin-left: 0; }
}
@media print {
  .site-head, .site-foot, .cta-box, .btn-row { display: none; }
}