:root {
  --paper:#f5f4ed;
  --ivory:#faf9f5;
  --sand:#e8e6dc;
  --line:#e3e0d4;
  --line-soft:#f0eee6;
  --ink:#141413;
  --text:#30302e;
  --muted:#5e5d59;
  --soft:#87867f;
  --dark:#1f211d;
  --dark-2:#30302e;
  --warm:#c96442;
  --warm-soft:#f3dfd4;
  --green:#617164;
  --shadow:0 24px 70px rgba(20,20,19,.08);
  --ring:0 0 0 1px rgba(194,192,182,.72);
}

* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:var(--paper);
  color:var(--text);
  line-height:1.68;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a { color:inherit; text-decoration-thickness:.08em; text-underline-offset:.18em; }
a:hover { color:var(--warm); }
.container { width:min(1120px, calc(100% - 2rem)); margin:0 auto; }
.page { width:min(1040px, calc(100% - 2rem)); margin:0 auto; padding:1.15rem 0 4.5rem; }
.page:has(main.card) { width:min(900px, calc(100% - 2rem)); }

.site-header {
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(circle at 82% 18%, rgba(201,100,66,.14), transparent 30rem),
    linear-gradient(180deg, #faf9f5 0%, var(--paper) 100%);
}
.site-header::after {
  content:"";
  position:absolute;
  inset:auto -8rem -12rem auto;
  width:32rem;
  height:32rem;
  border-radius:999px;
  background:rgba(97,113,100,.10);
  pointer-events:none;
}
nav { position:relative; z-index:1; }
.site-header nav {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:1.25rem;
  padding:1.15rem 0;
  font-size:.94rem;
}
.brand {
  display:inline-flex;
  align-items:center;
  gap:.65rem;
  color:var(--ink);
  font-weight:650;
  text-decoration:none;
  letter-spacing:-.01em;
}
.brand-logo {
  width:2.1rem;
  height:2.1rem;
  border-radius:.58rem;
  display:block;
  object-fit:cover;
  box-shadow:var(--ring);
}
.brand-mark {
  width:2.1rem;
  height:2.1rem;
  border-radius:999px;
  display:grid;
  place-items:center;
  background:var(--ink);
  color:var(--ivory);
  font-family:Georgia, "Times New Roman", serif;
  font-size:1.05rem;
  box-shadow:var(--ring);
}
.nav-links { display:flex; flex-wrap:wrap; gap:.35rem; justify-content:flex-end; }
.nav-links a {
  color:var(--muted);
  text-decoration:none;
  font-weight:550;
  padding:.52rem .72rem;
  border-radius:999px;
}
.nav-links a:hover { background:var(--sand); color:var(--ink); }

.page-brand {
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin:.25rem 0 1.05rem;
}
.page-brand .brand { font-size:.95rem; }

.breadcrumb, .back {
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  color:var(--muted);
  font-size:.93rem;
  font-weight:600;
  text-decoration:none;
  margin:.25rem 0 1rem;
}
.breadcrumb a { color:var(--muted); font-weight:700; text-decoration:none; }
.back:hover, .breadcrumb a:hover { color:var(--warm); }

.hero {
  position:relative;
  z-index:1;
  border:1px solid var(--line-soft);
  border-radius:1.55rem;
  padding:clamp(1.55rem, 4vw, 3rem);
  margin-bottom:1.2rem;
  color:var(--text);
  background:
    radial-gradient(circle at 88% 10%, rgba(201,100,66,.13), transparent 22rem),
    linear-gradient(180deg, #fffdf8 0%, var(--ivory) 100%);
  box-shadow:var(--shadow);
}
.site-header .hero {
  display:grid;
  grid-template-columns:minmax(0, 1fr) 22rem;
  gap:3.25rem;
  align-items:end;
  padding:5.25rem 0 4.25rem;
  margin:0;
  border:0;
  border-radius:0;
  background:transparent;
  box-shadow:none;
}
.hero-top { display:flex; justify-content:space-between; gap:1rem; align-items:flex-start; flex-wrap:wrap; }
.eyebrow, .section-kicker {
  color:var(--warm);
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.15em;
  text-transform:uppercase;
  margin-bottom:.85rem;
}
h1, h2, h3 {
  font-family:Georgia, "Times New Roman", serif;
  color:var(--ink);
  font-weight:500;
  letter-spacing:-.025em;
}
h1 { max-width:850px; font-size:clamp(2.15rem, 5.5vw, 4.4rem); line-height:1.02; margin-bottom:1rem; }
.site-header h1 { max-width:780px; font-size:clamp(2.65rem, 7vw, 5.5rem); line-height:.98; margin-bottom:1.25rem; }
h2 { font-size:clamp(1.65rem, 3vw, 2.35rem); line-height:1.12; margin:1.9rem 0 .8rem; }
h3 { font-size:1.22rem; line-height:1.22; margin:.95rem 0 .35rem; }
p { margin:.75rem 0; }
ul, ol { padding-left:1.25rem; margin:.75rem 0; }
li { margin:.35rem 0; }
.lead, .hero .title { max-width:780px; color:var(--muted); font-size:clamp(1.03rem, 1.45vw, 1.2rem); line-height:1.62; }
.site-header .lead { max-width:720px; font-size:clamp(1.05rem, 1.7vw, 1.28rem); margin-bottom:1.75rem; }
.muted { color:var(--muted); }

.actions { display:flex; gap:.85rem; flex-wrap:wrap; align-items:center; }
.btn, .btn-primary-link {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:2.65rem;
  border-radius:.85rem;
  padding:.72rem 1rem;
  font-weight:650;
  text-decoration:none;
  border:1px solid transparent;
  background:var(--sand);
  color:var(--text);
  box-shadow:var(--ring);
  white-space:nowrap;
}
.btn-primary, .btn-primary-link { background:var(--ink); color:var(--ivory); box-shadow:0 0 0 1px var(--ink); }
.btn-primary:hover, .btn-primary-link:hover { background:var(--dark-2); color:var(--ivory); }
.btn-secondary { background:var(--sand); color:var(--text); box-shadow:var(--ring); }
.btn-secondary:hover, .btn:hover { color:var(--ink); background:#dedbd0; }

.hero-card, .panel, .card, .article-card, .topic-card, .timeline li {
  background:var(--ivory);
  border:1px solid var(--line-soft);
  border-radius:1.35rem;
  box-shadow:0 0 0 1px rgba(255,255,255,.55), 0 18px 50px rgba(20,20,19,.055);
}
.hero-card {
  align-self:stretch;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:1.2rem;
  min-height:24rem;
  padding:1.35rem;
  border-radius:1.6rem;
  background:rgba(250,249,245,.82);
  backdrop-filter:blur(18px);
}
.hero-card h2 { font-size:1.75rem; line-height:1.12; margin:.15rem 0; }
.source-note { display:grid; gap:.55rem; color:var(--muted); font-size:.92rem; }
.quick-list, .principles, .article-list, .related-list, .timeline { list-style:none; padding-left:0; display:grid; gap:.75rem; }
.quick-list li, .principles li { display:grid; grid-template-columns:auto 1fr; gap:.75rem; align-items:start; color:var(--muted); }
.dot { width:.62rem; height:.62rem; margin-top:.55rem; border-radius:999px; background:var(--warm); box-shadow:0 0 0 .32rem var(--warm-soft); }

main { padding:1.8rem 0 0; }
.site-header + main.container { padding:4rem 0 5rem; }
.grid { display:grid; grid-template-columns:1fr; gap:1rem; }
.intro-grid { display:grid; grid-template-columns:.92fr 1.08fr; gap:1.2rem; align-items:stretch; margin-bottom:1.2rem; }
.panel, .card { padding:clamp(1.1rem, 2.5vw, 1.8rem); margin-bottom:1rem; }
main.card { padding:clamp(1.25rem, 3vw, 2.05rem); }
.card > h2:first-child, main.card > h2:first-child { margin-top:0; }
.notice {
  background:#fffdf8;
  border:1px solid var(--line);
  border-radius:1rem;
  padding:1rem;
  color:var(--muted);
  margin-bottom:1rem;
}
.review-note, .sources, footer { color:var(--muted); font-size:.94rem; }
.review-note { margin:.85rem 0 1.1rem; }
.sources { padding-left:1.2rem; }

.article-section { margin-top:1.2rem; padding:2rem; border-radius:1.6rem; background:var(--ivory); color:var(--text); border:1px solid var(--line-soft); box-shadow:var(--shadow); }
.article-section h2 { max-width:760px; }
.article-section .muted { max-width:760px; }
.article-list { grid-template-columns:repeat(3, minmax(0, 1fr)); gap:.85rem; margin-top:1.5rem; }
.article-list a, .article-card {
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:1rem;
  min-height:10.5rem;
  padding:1.15rem;
  border-radius:1.05rem;
  text-decoration:none;
  background:#fffdf8;
  border:1px solid var(--line);
  color:var(--text);
}
.article-list a:hover, .article-card:hover, .related-list a:hover, .topic-card:hover { background:#fff; color:var(--text); border-color:rgba(201,100,66,.42); box-shadow:0 16px 44px rgba(20,20,19,.07); }
.article-list strong, .article-card a { display:block; color:var(--ink); font-family:Georgia,"Times New Roman",serif; font-size:1.22rem; font-weight:500; line-height:1.18; letter-spacing:-.015em; margin-bottom:.45rem; text-decoration:none; }
.article-list span, .article-card p { color:var(--muted); font-size:.94rem; }
.article-list em, .tag, .year { color:var(--warm); font-size:.82rem; font-style:normal; font-weight:700; letter-spacing:.03em; }
.article-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:1rem; margin-top:1rem; }
.article-card h2 { margin:.2rem 0 .4rem; font-size:1.35rem; }
.tag { display:inline-block; margin-bottom:.65rem; padding:.2rem .58rem; border-radius:999px; background:var(--warm-soft); }

.topic-grid { display:grid; grid-template-columns:repeat(4, minmax(0, 1fr)); gap:.85rem; margin:1.2rem 0; }
.topic-card { display:block; padding:1.1rem; min-height:10.25rem; text-decoration:none; color:var(--text); }
.topic-card p { color:var(--muted); font-size:.95rem; }
.about-strip { display:grid; grid-template-columns:1fr 1fr; gap:1rem; margin-top:1.2rem; }
.compact { padding:1.35rem; }
.compact a { color:var(--ink); font-weight:650; }

.timeline { gap:.8rem; }
.timeline li { padding:.85rem .95rem; }
.related-list { gap:.7rem; }
.related-list a {
  display:block;
  min-height:auto;
  padding:1rem 1.1rem;
  border-radius:1rem;
  text-decoration:none;
  background:#fffdf8;
  border:1px solid var(--line);
  color:var(--text);
}
.pub-list { list-style:none; padding-left:0; display:grid; gap:.75rem; }
.pub-list li {
  padding:1rem 1.05rem;
  border-radius:1rem;
  background:#fffdf8;
  border:1px solid var(--line);
  box-shadow:0 12px 34px rgba(20,20,19,.04);
}
.pub-title { color:var(--warm); font-weight:750; }
.pub-authors { margin-top:.45rem; color:var(--muted); font-size:.94rem; }
.pub-authors summary { cursor:pointer; font-weight:650; }
.row { display:flex; gap:.75rem; justify-content:space-between; flex-wrap:wrap; margin-bottom:.2rem; }
.exp-details { margin-top:.35rem; }
.exp-details summary { cursor:pointer; color:var(--muted); font-size:.95rem; font-weight:650; }
.exp-details p { margin-top:.35rem; color:var(--muted); font-size:.95rem; }
.related { background:#fffdf8; border:1px solid var(--line); border-radius:1rem; padding:1rem 1rem 1rem 2rem; }
.faq h3 { margin-top:1.1rem; font-size:1.08rem; }

body > footer, footer {
  color:var(--muted);
  font-size:.92rem;
  margin-top:2rem;
}
body > footer {
  border-top:1px solid var(--line);
  background:#efede4;
  padding:2rem 0;
}
.site-footer, body > footer .container { display:grid; gap:.45rem; }

@media (min-width:900px) {
  .grid { grid-template-columns:1fr 1fr; }
  .span-2 { grid-column:span 2; }
}
@media (max-width:920px) {
  .site-header .hero, .intro-grid, .about-strip { grid-template-columns:1fr; }
  .site-header .hero { padding:3.25rem 0; gap:1.25rem; }
  .hero-card { min-height:auto; }
  .article-list { grid-template-columns:1fr 1fr; }
  .topic-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:760px) {
  .article-grid { grid-template-columns:1fr; }
}
@media (max-width:640px) {
  .container, .page { width:min(100% - 1.1rem, 1120px); }
  .site-header nav { align-items:flex-start; flex-direction:column; }
  .nav-links { justify-content:flex-start; }
  .nav-links a { padding:.38rem .2rem; margin-right:.5rem; }
  h1, .site-header h1 { font-size:2.45rem; }
  .panel, .article-section, .card, main.card { padding:1.15rem; }
  .article-list, .topic-grid { grid-template-columns:1fr; }
  .article-list a { min-height:auto; }
}