/* ===== Arpent Design Tokens (brand master sheet) — shared with index.html ===== */
:root {
  --paper:#F6F2EA; --paper-raised:#FBF8F2; --paper-sunk:#F0EBDF;
  --line:#E4DCC9; --line-strong:#D8CCB4;
  --ink:#241C14; --ink-2:#6B6153; --ink-3:#8C7F66;
  --accent:#7A5230; --accent-soft:#9B7D64; --accent-wash:#DED4CB;
  --accent-dark:#5C3E24;
  --rust:#C4763B;
  --serif:"Source Serif 4","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans:"Public Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --max-w: 1120px;
  --radius: 10px;
  --radius-lg: 16px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:#241C14; --paper-raised:#3A2F22; --paper-sunk:#1C150E;
    --line:#4A3D2C; --line-strong:#5A4B36;
    --ink:#F6F2EA; --ink-2:#C9BC9E; --ink-3:#A08F72;
    --accent:#A56B3E; --accent-soft:#B78965; --accent-wash:#191009;
    --accent-dark:#744B2B;
    --rust:#D98A4E;
  }
}
:root[data-theme="dark"] {
  --paper:#241C14; --paper-raised:#3A2F22; --paper-sunk:#1C150E;
  --line:#4A3D2C; --line-strong:#5A4B36;
  --ink:#F6F2EA; --ink-2:#C9BC9E; --ink-3:#A08F72;
  --accent:#A56B3E; --accent-soft:#B78965; --accent-wash:#191009;
  --accent-dark:#744B2B;
  --rust:#D98A4E;
}
:root[data-theme="light"] {
  --paper:#F6F2EA; --paper-raised:#FBF8F2; --paper-sunk:#F0EBDF;
  --line:#E4DCC9; --line-strong:#D8CCB4;
  --ink:#241C14; --ink-2:#6B6153; --ink-3:#8C7F66;
  --accent:#7A5230; --accent-soft:#9B7D64; --accent-wash:#DED4CB;
  --accent-dark:#5C3E24;
  --rust:#C4763B;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }
.container { max-width: 760px; margin: 0 auto; padding: 0 1.25rem; }

.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--paper-raised);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max-w); margin: 0 auto; padding: 0 1.25rem;
  height: 60px;
}
.nav-brand {
  display: flex; align-items: center; gap: 0.625rem;
  font-family: var(--serif); font-weight: 700; font-size: 1.25rem;
  color: var(--ink);
}
.nav-brand-icon {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: var(--accent);
  border-radius: 8px;
  font-size: 1.25rem;
  line-height: 1;
}
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1.125rem;
  border: none; border-radius: 6px;
  font-family: var(--sans); font-size: 0.875rem; font-weight: 600;
  cursor: pointer; text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }

.article-header { padding: 3rem 0 2rem; }
.article-category {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-wash);
  padding: 0.25rem 0.875rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}
.article-header h1 {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 1rem;
}
.article-dek {
  font-size: 1.125rem; color: var(--ink-2); line-height: 1.6;
}
.article-body { padding-bottom: 4rem; font-size: 1.0625rem; }
.article-body p { margin-bottom: 1.25rem; color: var(--ink); line-height: 1.75; }
.article-body h2 {
  font-family: var(--serif);
  font-size: 1.5rem; font-weight: 700;
  margin: 2.25rem 0 1rem; color: var(--ink);
}
.article-body ul, .article-body ol {
  margin: 0 0 1.25rem 1.5rem;
}
.article-body li { margin-bottom: 0.5rem; line-height: 1.7; }
.article-body strong { color: var(--ink); }
.article-cta {
  margin-top: 2.5rem;
  padding: 1.75rem;
  background: var(--paper-sunk);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  text-align: center;
}
.article-cta p { margin-bottom: 1rem; color: var(--ink-2); }
.article-back { display: inline-block; margin-bottom: 1.5rem; font-size: 0.875rem; color: var(--ink-3); }

.footer {
  background: var(--paper-sunk);
  border-top: 1px solid var(--line);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.8125rem; color: var(--ink-3);
}