:root {
  --cream: #fbf7ed;
  --cream-deep: #f1e7d1;
  --white: #ffffff;
  --ink: #27251f;
  --muted: #676158;
  --gold: #b48932;
  --gold-dark: #79591b;
  --gold-light: #e5d3aa;
  --border: #ddd4c3;
  --soft: #f7f2e8;
  --shadow: 0 12px 30px rgba(65, 49, 25, 0.08);
  --max: 1180px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--cream);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--gold-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover { color: var(--gold); }

img { max-width: 100%; height: auto; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: 10px 14px;
  color: #fff;
  background: var(--ink);
}

.skip-link:focus { left: 10px; top: 10px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: var(--max);
  min-height: 74px;
  margin: 0 auto;
  padding: 12px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.08;
}

.brand-main {
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-sub {
  margin-top: 6px;
  color: var(--gold-dark);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.menu-toggle {
  display: none;
  padding: 9px 12px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 7px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  padding: 8px 9px;
  color: var(--ink);
  border-radius: 6px;
  font-size: 0.81rem;
  font-weight: 700;
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--gold-dark);
  background: var(--soft);
}

.page-shell {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 22px 70px;
}

.hero {
  padding: clamp(40px, 7vw, 78px) clamp(24px, 6vw, 72px);
  margin-bottom: 24px;
  text-align: center;
  background: linear-gradient(135deg, var(--cream) 0%, var(--white) 55%, var(--cream-deep) 100%);
  border: 1px solid var(--border);
  border-top: 6px solid var(--gold);
  border-radius: 15px;
  box-shadow: var(--shadow);
}

.hero.compact { padding-top: 45px; padding-bottom: 45px; }

.eyebrow {
  display: block;
  margin-bottom: 13px;
  color: var(--gold-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 950px;
  margin: 0 auto 18px;
  font-size: clamp(2.15rem, 5vw, 4.15rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.hero.compact h1 {
  font-size: clamp(2rem, 4.2vw, 3.3rem);
}

.hero-lead {
  max-width: 870px;
  margin: 0 auto 15px;
  color: var(--muted);
  font-size: clamp(1.04rem, 2vw, 1.22rem);
}

.hero-note {
  max-width: 830px;
  margin: 15px auto 0;
  color: var(--gold-dark);
  font-weight: 700;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  min-height: 47px;
  padding: 12px 21px;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--gold);
  border-radius: 7px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}

.button.primary {
  color: #fff;
  background: var(--gold);
  box-shadow: 0 8px 20px rgba(121, 89, 27, 0.20);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.byline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.section {
  padding: clamp(28px, 5vw, 50px);
  margin-bottom: 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 13px;
  box-shadow: 0 8px 24px rgba(60, 48, 27, 0.05);
}

.section.cream { background: var(--soft); }
.section.deep { background: linear-gradient(135deg, var(--cream) 0%, var(--cream-deep) 100%); }

.section h2 {
  margin: 0 0 16px;
  font-size: clamp(1.65rem, 3vw, 2.45rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.section h3 {
  margin: 26px 0 8px;
  font-size: 1.28rem;
  line-height: 1.25;
}

.section p { margin: 0 0 17px; }

.heading-line {
  display: block;
  width: 60px;
  height: 4px;
  margin-bottom: 16px;
  background: var(--gold);
}

.lead {
  max-width: 900px;
  color: var(--muted);
  font-size: 1.06rem;
}

.definition {
  padding: 24px 25px;
  margin: 24px 0;
  background: var(--cream);
  border: 1px solid var(--border);
  border-left: 7px solid var(--gold);
  border-radius: 9px;
}

.definition strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.18rem;
}

.grid-2,
.grid-3,
.grid-4,
.term-grid {
  display: grid;
  gap: 16px;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.term-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card,
.term-card,
.example-card,
.faq-item {
  padding: 23px 21px;
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 5px solid var(--gold);
  border-radius: 10px;
}

.card h3,
.term-card h3,
.example-card h3,
.faq-item h3 {
  margin-top: 0;
}

.card p:last-child,
.term-card p:last-child,
.example-card p:last-child,
.faq-item p:last-child { margin-bottom: 0; }

.term-card {
  display: flex;
  flex-direction: column;
  min-height: 280px;
  color: var(--ink);
  text-decoration: none;
}

.term-card:hover { box-shadow: var(--shadow); }

.term-label {
  display: block;
  margin-bottom: 12px;
  color: var(--gold-dark);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.term-link {
  margin-top: auto;
  color: var(--gold-dark);
  font-weight: 800;
}

.toc {
  padding: 23px 25px;
  margin: 0 0 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 6px solid var(--gold);
  border-radius: 9px;
}

.toc strong { display: block; margin-bottom: 8px; }

.toc ul {
  margin: 0;
  padding-left: 20px;
  columns: 2;
  column-gap: 36px;
}

.toc li {
  break-inside: avoid;
  margin: 5px 0;
}

.check-list,
.plain-list { padding-left: 22px; }

.check-list li,
.plain-list li { margin-bottom: 8px; }

.note {
  padding: 18px 20px;
  margin: 22px 0;
  color: var(--muted);
  background: var(--soft);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.note strong { color: var(--ink); }

.comparison-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--border);
  border-radius: 9px;
}

.comparison-table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
  background: var(--white);
}

.comparison-table th,
.comparison-table td {
  padding: 15px 14px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.comparison-table th:last-child,
.comparison-table td:last-child { border-right: 0; }

.comparison-table tr:last-child td { border-bottom: 0; }

.comparison-table th {
  color: var(--ink);
  background: var(--cream-deep);
  font-size: 0.9rem;
}

.comparison-table td:first-child {
  color: var(--gold-dark);
  font-weight: 800;
}

.quote {
  padding: 28px;
  margin: 24px 0;
  background: var(--cream-deep);
  border: 1px solid var(--border);
  border-left: 7px solid var(--gold);
  border-radius: 9px;
  font-size: 1.08rem;
}

.quote p:last-child { margin-bottom: 0; }

.source-list {
  margin: 18px 0 0;
  padding-left: 22px;
}

.source-list li { margin-bottom: 11px; }

.related-work {
  padding: 28px;
  margin: 24px 0;
  background: var(--soft);
  border: 1px solid var(--border);
  border-top: 5px solid var(--gold);
  border-radius: 10px;
}

.related-work h2,
.related-work h3 { margin-top: 0; }

.disclosure {
  padding: 18px 20px;
  color: var(--muted);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.94rem;
}

.breadcrumbs {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.88rem;
}

.breadcrumbs a { text-decoration: none; }

.site-footer {
  color: var(--muted);
  background: #f3ecdc;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 38px 22px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 26px;
}

.footer-title {
  display: block;
  margin-bottom: 9px;
  color: var(--ink);
  font-weight: 800;
}

.footer-links {
  display: grid;
  gap: 7px;
}

.footer-links a { text-decoration: none; }

.footer-bottom {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 22px 28px;
  border-top: 1px solid var(--border);
  font-size: 0.86rem;
}

@media (max-width: 1040px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .term-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .main-nav a { font-size: 0.77rem; padding: 7px; }
}

@media (max-width: 820px) {
  .menu-toggle { display: inline-flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 14px;
    right: 14px;
    padding: 14px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 9px;
    box-shadow: var(--shadow);
  }
  .main-nav.open {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .main-nav a { font-size: 0.9rem; }
  .grid-3,
  .grid-2,
  .term-grid,
  .footer-inner { grid-template-columns: 1fr; }
  .toc ul { columns: 1; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .header-inner { padding-left: 14px; padding-right: 14px; }
  .page-shell { padding: 18px 10px 55px; }
  .hero, .section { border-radius: 10px; }
  .grid-4 { grid-template-columns: 1fr; }
  .main-nav.open { grid-template-columns: 1fr; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
}