:root {
  --oak: #2E4636;
  --oak-deep: #213328;
  --moss: #7F8F4E;
  --leaf: #9AA86A;
  --stone: #E6E9E3;
  --paper: #F7F8F5;
  --ink: #1D241F;
  --muted: #55605A;
  --rule: #C9CFC6;
  --serif: "Spectral", Georgia, serif;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 1.0625rem; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: var(--oak); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--moss); outline-offset: 3px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.2; color: var(--oak-deep); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(247,248,245,0.94); backdrop-filter: blur(6px); border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--oak-deep); font-family: var(--serif); font-size: 1.3rem; font-weight: 600; white-space: nowrap; }
.brand svg { width: 34px; height: 34px; flex: none; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { text-decoration: none; color: var(--ink); font-size: 0.97rem; }
.nav a:hover { color: var(--oak); text-decoration: underline; text-underline-offset: 4px; }
.btn { display: inline-block; background: var(--oak); color: #fff; text-decoration: none; padding: 13px 22px; border-radius: 6px; font-weight: 600; border: 2px solid var(--oak); }
.btn:hover { background: var(--oak-deep); border-color: var(--oak-deep); }
.nav .btn { color: #fff; padding: 10px 18px; white-space: nowrap; }
.nav .btn:hover { color: #fff; text-decoration: none; }
@media (max-width: 760px) { .nav a:not(.btn) { display: none; } }
@media (max-width: 480px) {
  .brand { font-size: 1.08rem; }
  .brand svg { width: 28px; height: 28px; }
  .nav .btn { padding: 9px 12px; font-size: 0.88rem; }
}

/* Blog index */
.blog-hero { padding: 72px 0 40px; }
.blog-hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 0 0 16px; }
.blog-hero p { color: var(--muted); font-size: 1.2rem; max-width: 36em; margin: 0; }
.post-list { list-style: none; padding: 0; margin: 0 0 96px; border-top: 1px solid var(--rule); }
.post-list li { padding: 32px 0; border-bottom: 1px solid var(--rule); }
.post-list h2 { font-size: 1.6rem; margin: 6px 0 10px; }
.post-list h2 a { text-decoration: none; color: var(--oak-deep); }
.post-list h2 a:hover { text-decoration: underline; text-underline-offset: 4px; }
.post-list p { color: var(--muted); margin: 0; max-width: 40em; }
.meta { font-size: 0.92rem; color: var(--muted); }

/* Article */
article { padding: 64px 0 40px; }
.crumbs { font-size: 0.92rem; margin-bottom: 24px; }
article h1 { font-size: clamp(2.1rem, 4.6vw, 3.1rem); margin: 0 0 16px; letter-spacing: -0.01em; }
article .meta { margin-bottom: 40px; padding-bottom: 24px; border-bottom: 1px solid var(--rule); }
article h2 { font-size: 1.65rem; margin: 48px 0 12px; }
article h3 { font-size: 1.25rem; margin: 32px 0 8px; }
article p, article li { font-size: 1.1rem; }
article ul, article ol { padding-left: 1.3em; }
article li { margin-bottom: 8px; }
.lead { font-size: 1.25rem !important; color: var(--muted); }
.note { font-size: 0.95rem !important; color: var(--muted); border-top: 1px solid var(--rule); padding-top: 20px; margin-top: 48px; }
.cta { background: var(--oak); color: #EEF1EA; border-radius: 10px; padding: 36px; margin: 56px 0 24px; }
.cta h2 { color: #fff; margin: 0 0 10px; font-size: 1.6rem; }
.cta p { color: #C9D2C3; margin: 0 0 20px; }
.cta .btn { background: var(--paper); color: var(--oak-deep); border-color: var(--paper); }
.cta .btn:hover { background: var(--stone); border-color: var(--stone); }
.more { margin: 0 0 96px; }
.more h2 { font-size: 1.3rem; }
.more ul { padding-left: 1.2em; }

footer { background: var(--oak-deep); color: #A9B5A4; padding: 28px 0; font-size: 0.92rem; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer p { margin: 0; }
footer a { color: #DDE4D6; }