:root {
  --background: #f8f5ee;
  --foreground: #142033;
  --card: #ffffff;
  --muted: #6b7280;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --secondary: #f7ead1;
  --accent: #f97316;
  --border: #ded4c4;
  --shadow: 0 24px 70px rgb(20 32 51 / 8%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0e1523;
    --foreground: #f7f2e9;
    --card: #172033;
    --muted: #b8c0cc;
    --primary: #2dd4bf;
    --primary-dark: #5eead4;
    --secondary: #222b3d;
    --accent: #fb923c;
    --border: #334155;
    --shadow: 0 24px 70px rgb(0 0 0 / 24%);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--primary) 16%, transparent), transparent 34rem),
    radial-gradient(circle at top right, color-mix(in srgb, var(--accent) 16%, transparent), transparent 30rem),
    var(--background);
  color: var(--foreground);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.shell {
  width: min(100% - 2rem, 76rem);
  margin-inline: auto;
}

.narrow {
  width: min(100% - 2rem, 60rem);
}

.page-pad {
  padding-block: 2.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  background: color-mix(in srgb, var(--background) 88%, transparent);
  backdrop-filter: blur(16px);
}

.header-grid {
  display: grid;
  grid-template-columns: auto 1fr minmax(18rem, 30rem);
  gap: 1.25rem;
  align-items: center;
  padding-block: .85rem;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  font-weight: 700;
  text-decoration: none;
}

.brand-text {
  display: grid;
  gap: .125rem;
  line-height: 1.2;
}

.brand-text strong {
  font-size: 1rem;
}

.brand-text small {
  color: var(--muted);
  font-size: .75rem;
  font-weight: 400;
}

.brand-mark {
  display: block;
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  border-radius: .875rem;
}

.footer-brand .brand-mark {
  width: 2rem;
  height: 2rem;
}

.top-nav,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  color: var(--muted);
  font-size: .95rem;
}

.top-nav a,
.footer-nav a {
  text-decoration: none;
}

.top-nav a:hover,
.footer-nav a:hover {
  color: var(--foreground);
}

.search-box {
  position: relative;
}

.search-box input {
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--card) 86%, transparent);
  color: var(--foreground);
  font: inherit;
  padding: .85rem 1rem;
  box-shadow: 0 8px 28px rgb(20 32 51 / 5%);
}

.hero-search {
  margin-top: 1.5rem;
  max-width: 44rem;
}

.search-results {
  position: absolute;
  inset-inline: 0;
  top: calc(100% + .5rem);
  z-index: 20;
  max-height: 26rem;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: var(--card);
  box-shadow: var(--shadow);
  padding: .5rem;
}

.search-results a,
.search-empty {
  display: block;
  padding: .75rem .85rem;
  border-radius: .85rem;
  text-decoration: none;
}

.search-results a:hover,
.search-results a.is-active {
  background: var(--secondary);
}

.search-results strong,
.search-results small {
  display: block;
}

.search-results small,
.search-empty {
  color: var(--muted);
}

.hero-panel,
.legal-page,
.article-body {
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  border-radius: 2rem;
  background: color-mix(in srgb, var(--card) 86%, transparent);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: clamp(2rem, 5vw, 4rem);
}

.home-hero {
  text-align: center;
}

h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: -.03em;
}

h1 {
  margin: .5rem 0 1rem;
  font-size: clamp(2.25rem, 6vw, 4.5rem);
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
}

.eyebrow,
.section-heading p,
.toc-panel p {
  color: var(--primary);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.stats-grid,
.topic-grid,
.card-grid,
.compact-list {
  display: grid;
  gap: 1rem;
}

.stats-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.5rem;
}

.stats-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stats-grid div,
.topic-card,
.article-card,
.notice,
.toc-panel,
.accordion-list details {
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  border-radius: 1.25rem;
  background: color-mix(in srgb, var(--card) 82%, transparent);
  padding: 1rem;
}

.stats-grid strong {
  display: block;
  font-size: 2rem;
}

.stats-grid span,
.topic-card span,
.article-card span,
.article-card time,
.page-header p,
.section-heading a {
  color: var(--muted);
}

.content-section,
.related-section {
  margin-top: 3.5rem;
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.section-heading h2,
.section-heading p {
  margin: 0;
}

.topic-grid {
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
}

.card-grid.four,
.compact-list {
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

.topic-card,
.article-card {
  display: grid;
  gap: .6rem;
  text-decoration: none;
}

.topic-card:hover,
.article-card:hover {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  transform: translateY(-1px);
}

.card-kicker {
  color: var(--primary);
  font-size: .75rem;
  font-weight: 700;
}

.topic-list {
  display: grid;
  gap: .75rem;
  margin-top: 2rem;
}

.topic-list a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: color-mix(in srgb, var(--card) 82%, transparent);
  padding: 1rem;
  text-decoration: none;
}

.topic-list small {
  display: block;
  color: var(--muted);
}

.back-link {
  display: inline-block;
  margin-bottom: 1.25rem;
  color: var(--muted);
  text-decoration: none;
}

.page-header {
  max-width: 48rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  color: var(--primary-dark);
  font-size: .9rem;
  font-weight: 700;
  padding: .4rem .75rem;
  text-decoration: none;
}

.pill.muted {
  background: var(--secondary);
  color: var(--muted);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.article-page .article-hero {
  padding: clamp(2rem, 4vw, 3rem) clamp(1.75rem, 4vw, 3rem);
}

.article-page .article-hero h1 {
  margin: 1.25rem 0 0;
  font-size: clamp(2rem, 5vw, 3.6rem);
}

.article-page .article-hero p {
  margin: 1.25rem 0 0;
  max-width: 52rem;
  font-size: 1.05rem;
  line-height: 1.65;
  color: color-mix(in srgb, var(--foreground) 82%, var(--muted));
}

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18rem;
  gap: clamp(1.75rem, 3vw, 2.5rem);
  align-items: start;
  margin-top: 1.5rem;
}

.article-main {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.article-main .article-body {
  margin-top: .5rem;
}

.notice {
  margin: 0;
  padding: 1rem 1.25rem;
  color: color-mix(in srgb, var(--foreground) 86%, var(--muted));
  line-height: 1.6;
}

.notice.safety {
  background: color-mix(in srgb, #dbeafe 72%, var(--card));
}

.notice.affiliate {
  background: color-mix(in srgb, #fef3c7 72%, var(--card));
}

@media (prefers-color-scheme: dark) {
  .article-page .notice.safety {
    background: color-mix(in srgb, var(--card) 55%, #1e3a5f);
    border-color: color-mix(in srgb, var(--border) 70%, #3b82f6);
  }

  .article-page .notice.affiliate {
    background: color-mix(in srgb, var(--card) 45%, #422006);
    border-color: color-mix(in srgb, var(--border) 70%, #d97706);
  }
}

.prose {
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.article-page .article-body.prose {
  padding: clamp(2rem, 4vw, 3rem);
}

.article-page .prose h2,
.article-page .prose h3 {
  margin-top: 2.5rem;
}

.article-page .prose h2:first-child,
.article-page .prose h3:first-child {
  margin-top: 0;
}

.prose h2,
.prose h3 {
  margin-top: 2rem;
}

.prose p,
.prose li {
  line-height: 1.75;
}

.prose a {
  color: var(--primary-dark);
  font-weight: 700;
}

.toc-panel {
  position: sticky;
  top: 6rem;
  padding: 1.25rem 1.35rem;
}

.article-page .toc-panel {
  align-self: start;
}

.toc-panel nav {
  display: grid;
  gap: .35rem;
}

.toc-panel a {
  color: var(--muted);
  font-size: .95rem;
  text-decoration: none;
}

.toc-panel .toc-level-3 {
  padding-left: 1rem;
}

.accordion-list {
  display: grid;
  gap: .8rem;
  margin-top: 1.5rem;
}

.accordion-list summary {
  cursor: pointer;
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 58%, transparent);
  margin-top: 3rem;
  padding-block: 2rem;
}

.footer-grid {
  display: grid;
  gap: 1.25rem;
}

.copyright {
  color: var(--muted);
  font-size: .85rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 820px) {
  .header-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

  .top-nav {
    order: 3;
  }

  .stats-grid,
  .stats-grid.three {
    grid-template-columns: 1fr;
  }

  .toc-panel {
    position: static;
  }
}