/* ============================================================
   Article / blog styles — shares the calculator's visual language
   ============================================================ */
:root {
  --bg: #f6f7f5;
  --surface: #ffffff;
  --ink: #15201b;
  --ink-soft: #5a6b62;
  --line: #e4e8e3;
  --brand: #0e7c5a;
  --brand-dark: #0a5d43;
  --brand-soft: #e6f4ee;
  --accent: #e8a13a;
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased; line-height: 1.65;
}

/* Header / footer */
.site-head {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  max-width: 1060px; margin: 0 auto; padding: 16px 20px;
}
.site-head .brand { font-weight: 800; color: var(--brand-dark); text-decoration: none; font-size: 15px; }
.site-head nav a { color: var(--ink-soft); text-decoration: none; font-weight: 600; font-size: 14px; margin-left: 16px; }
.site-head nav a:hover { color: var(--brand); }
.site-foot {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  max-width: 760px; margin: 40px auto 60px; padding: 20px; font-size: 12.5px; color: var(--ink-soft);
  border-top: 1px solid var(--line);
}
.site-foot a { color: var(--brand-dark); }

/* Article body */
.article { max-width: 760px; margin: 0 auto; padding: 8px 20px 0; }
.crumbs { font-size: 12.5px; color: var(--ink-soft); margin-bottom: 18px; }
.crumbs a { color: var(--brand-dark); text-decoration: none; }
article h1 { font-size: clamp(28px, 5vw, 40px); line-height: 1.15; letter-spacing: -.02em; font-weight: 800; margin: 0 0 22px; }
article h2 { font-size: clamp(20px, 3.4vw, 26px); font-weight: 700; letter-spacing: -.01em; margin: 38px 0 12px; padding-top: 8px; }
article h3 { font-size: 18px; font-weight: 700; margin: 26px 0 8px; }
article p { margin: 0 0 16px; font-size: 17px; }
article a { color: var(--brand-dark); text-decoration: underline; text-underline-offset: 2px; }
article a:hover { color: var(--brand); }
article hr { border: none; border-top: 1px solid var(--line); margin: 34px 0; }

/* Lists */
article ul { margin: 0 0 18px; padding-left: 22px; }
article li { margin-bottom: 8px; font-size: 17px; }
article ul.checklist { list-style: none; padding-left: 0; }
article ul.checklist li.task { display: flex; gap: 10px; align-items: baseline; }
article ul.checklist .box { color: var(--brand); font-size: 17px; flex: 0 0 auto; }

/* Callouts (blockquotes) */
.callout {
  margin: 22px 0; padding: 14px 16px; border-radius: 12px; font-size: 16px;
  border: 1px solid var(--line); background: #fff;
}
.callout :first-child { margin-top: 0; }
.callout.cta {
  border: 2px solid var(--accent); background: #fffaf0; font-weight: 600;
}
.callout.tip { background: var(--brand-soft); border-color: #cbe7db; color: var(--brand-dark); }

/* Tables */
.table-wrap { overflow-x: auto; margin: 22px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--brand-soft); color: var(--brand-dark); font-weight: 700; white-space: nowrap; }
tbody tr:last-child td { border-bottom: none; }

/* End CTA */
.end-cta {
  margin: 40px 0 10px; padding: 24px; border-radius: var(--radius);
  background: var(--brand); color: #fff; text-align: center;
}
.end-cta h3 { margin: 0 0 6px; color: #fff; font-size: 20px; }
.end-cta p { margin: 0 0 16px; opacity: .92; font-size: 15px; }
.end-cta .btn, .index-page .btn {
  display: inline-block; background: #fff; color: var(--brand-dark);
  font-weight: 700; text-decoration: none; padding: 11px 22px; border-radius: 10px;
}
.end-cta .btn:hover { background: var(--brand-soft); }

/* Blog index */
.index-page h1 { margin-bottom: 6px; }
.index-page .lede { font-size: 18px; color: var(--ink-soft); margin-bottom: 28px; }
.cards { display: grid; gap: 16px; }
.card {
  display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; text-decoration: none; color: var(--ink); box-shadow: 0 1px 2px rgba(20,32,27,.04);
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--brand); transform: translateY(-2px); }
.card h2 { margin: 0 0 8px; font-size: 19px; color: var(--ink); }
.card p { margin: 0 0 10px; font-size: 14.5px; color: var(--ink-soft); line-height: 1.5; }
.card .read { color: var(--brand-dark); font-weight: 700; font-size: 14px; }