:root {
  --ink: #20201e;
  --muted: #686862;
  --line: #deded8;
  --paper: #f7f7f3;
  --white: #ffffff;
  --accent: #166534;
  --accent-soft: #e8f3ea;
  --warm: #f3eadb;
  --max: 760px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 0%, rgba(22, 101, 52, .08), transparent 30rem),
    var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(222, 222, 216, .9);
  background: rgba(247, 247, 243, .92);
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100% - 32px));
  min-height: 66px;
  margin: auto;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
}

.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links .nav-cta {
  padding: 9px 14px;
  border-radius: 999px;
  color: white;
  background: var(--ink);
}

.hero,
.article-hero {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0 46px;
}

.article-hero { width: min(var(--max), calc(100% - 32px)); }

.eyebrow,
.topic {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 18px;
  padding: 7px 11px;
  border: 1px solid #bfd2c2;
  border-radius: 999px;
  color: var(--accent);
  background: var(--accent-soft);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(42px, 7vw, 74px);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: .99;
}

.article-hero h1 {
  font-size: clamp(38px, 6vw, 62px);
  line-height: 1.03;
}

.lead {
  max-width: 700px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.5;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
}

.notice {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto 32px;
  padding: 16px 18px;
  border: 1px solid #ddcaa8;
  border-radius: 14px;
  background: var(--warm);
  font-size: 14px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto 72px;
  gap: 16px;
}

.article-card {
  display: flex;
  min-height: 270px;
  padding: 26px;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 22px;
  color: var(--ink);
  background: rgba(255, 255, 255, .78);
  text-decoration: none;
  box-shadow: 0 10px 32px rgba(28, 28, 24, .04);
  transition: transform .2s ease, box-shadow .2s ease;
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 42px rgba(28, 28, 24, .08);
}

.article-card:first-child { grid-column: 1 / -1; }
.article-card .topic { align-self: flex-start; }
.article-card h2 {
  margin: 4px 0 10px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 500;
  letter-spacing: -.025em;
  line-height: 1.12;
}
.article-card p { margin: 0; color: var(--muted); }
.article-card .read {
  margin-top: auto;
  padding-top: 28px;
  color: var(--accent);
  font-weight: 750;
}

.article {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto 72px;
  padding: 34px clamp(20px, 5vw, 52px) 52px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--white);
  box-shadow: 0 18px 54px rgba(28, 28, 24, .05);
}

.article h2 {
  margin: 48px 0 14px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(28px, 4vw, 39px);
  font-weight: 500;
  letter-spacing: -.025em;
  line-height: 1.15;
}

.article h3 {
  margin: 30px 0 8px;
  font-size: 20px;
  line-height: 1.3;
}

.article p { margin: 0 0 18px; }
.article ul,
.article ol { margin: 0 0 22px; padding-left: 24px; }
.article li { margin: 8px 0; }

.summary {
  margin: 0 0 32px;
  padding: 20px;
  border-left: 4px solid var(--accent);
  border-radius: 0 14px 14px 0;
  background: var(--accent-soft);
}

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

.comparison {
  width: 100%;
  margin: 20px 0 28px;
  border-collapse: collapse;
  font-size: 14px;
}

.comparison th,
.comparison td {
  padding: 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison th { background: var(--paper); }

.faq details {
  border-top: 1px solid var(--line);
}

.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  padding: 18px 2px;
  cursor: pointer;
  font-weight: 750;
}
.faq details p { padding: 0 2px 18px; color: var(--muted); }

.sources {
  margin-top: 46px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.sources h2 { margin-top: 0; font-size: 24px; }

.cta-box {
  margin-top: 46px;
  padding: 26px;
  border-radius: 18px;
  color: white;
  background: var(--ink);
}

.cta-box h2 { margin: 0 0 10px; color: white; font-size: 30px; }
.cta-box p { color: #d7d7d0; }
.cta-button {
  display: inline-flex;
  padding: 12px 17px;
  border-radius: 999px;
  color: var(--ink);
  background: white;
  font-weight: 800;
  text-decoration: none;
}

.breadcrumbs {
  width: min(var(--max), calc(100% - 32px));
  margin: 28px auto -44px;
  color: var(--muted);
  font-size: 13px;
}
.breadcrumbs a { color: inherit; }

.site-footer {
  padding: 32px 16px 96px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
  font-size: 13px;
}

.site-footer a { color: var(--muted); }

@media (max-width: 680px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .hero, .article-hero { padding-top: 52px; }
  .article-grid { grid-template-columns: 1fr; }
  .article-card:first-child { grid-column: auto; }
  .article { border-right: 0; border-left: 0; border-radius: 0; }
  .comparison { display: block; overflow-x: auto; }
}