:root {
  --bg: #f6f3ea;
  --bg-strong: #f0eadb;
  --surface: rgba(255, 252, 246, 0.78);
  --ink: #1d2433;
  --muted: #5d6678;
  --line: rgba(29, 36, 51, 0.12);
  --accent: #0f766e;
  --accent-soft: #d7f2ed;
  --accent-2: #c85d3a;
  --accent-2-soft: #f8dfd4;
  --shadow: 0 18px 50px rgba(29, 36, 51, 0.1);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --page-width: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(200, 93, 58, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(49, 65, 183, 0.14), transparent 28%),
    linear-gradient(180deg, #f6f3ea 0%, #f9f6ef 38%, #f3efe4 100%);
  font-family: "Newsreader", "Iowan Old Style", "Palatino Linotype", serif;
  line-height: 1.65;
}

a { color: inherit; }
img { max-width: 100%; display: block; }

.site-shell {
  width: min(var(--page-width), calc(100vw - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(246, 243, 234, 0.75);
  border-bottom: 1px solid rgba(29, 36, 51, 0.08);
}

.site-header .site-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
}

.brand { text-decoration: none; }
.brand-kicker {
  display: block;
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.brand-title {
  display: block;
  margin-top: 4px;
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-links a {
  padding: 9px 14px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid rgba(29, 36, 51, 0.08);
  background: rgba(255, 255, 255, 0.5);
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
}

.page { padding: 34px 0 72px; }

.hero-card, .section-card, .article-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.hero-card { overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
}

.hero-copy { padding: 52px 52px 46px; }

.hero-visual {
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(49, 65, 183, 0.08), rgba(15, 118, 110, 0.08)),
    linear-gradient(135deg, rgba(255, 255, 255, 0.75), rgba(246, 243, 234, 0.95));
  display: flex;
  align-items: center;
  justify-content: center;
}

.eyebrow {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 16px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.08);
  color: var(--accent);
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1, h2, h3, h4 {
  margin: 0 0 14px;
  line-height: 1.05;
}

h1, h2, h3 {
  font-family: "Manrope", "Aptos Display", "Segoe UI", sans-serif;
  letter-spacing: -0.04em;
}

h1 { font-size: clamp(2.6rem, 6vw, 4.8rem); }
h2 { font-size: clamp(1.9rem, 3vw, 2.8rem); }
h3 { font-size: 1.35rem; }

p, li, td, th, blockquote { font-size: 1.05rem; }

.lead {
  font-size: 1.24rem;
  color: var(--muted);
  max-width: 38rem;
}

.hero-actions, .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-weight: 700;
  border: 1px solid transparent;
}

.button.primary { background: var(--ink); color: #fffef9; }
.button.secondary {
  background: rgba(255, 255, 255, 0.6);
  color: var(--ink);
  border-color: rgba(29, 36, 51, 0.12);
}

.section-stack, .article-main {
  display: grid;
  gap: 24px;
}

.article-main {
  min-width: 0;
}

.section-card, .article-card { padding: 32px; }

.two-up, .three-up, .feature-grid {
  display: grid;
  gap: 18px;
}

.two-up { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.three-up { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.feature-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.mini-card, .callout, .quote-card, .aside-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.64);
}

.callout { background: linear-gradient(180deg, rgba(15, 118, 110, 0.08), rgba(255, 255, 255, 0.82)); }
.quote-card { background: linear-gradient(135deg, rgba(200, 93, 58, 0.1), rgba(255, 255, 255, 0.82)); }
.quote-card blockquote { margin: 0; font-size: 1.25rem; }

.label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.label.warm { background: var(--accent-2-soft); color: var(--accent-2); }

.metric-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.metric-table th, .metric-table td {
  padding: 14px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(29, 36, 51, 0.08);
}

.metric-table th {
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

pre, .code-block {
  padding: 18px 20px;
  overflow-x: auto;
  border-radius: var(--radius-md);
  background: #1d2433;
  color: #f8f5ed;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.94rem;
  line-height: 1.5;
}

code {
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.92em;
}

blockquote {
  margin: 18px 0 0;
  padding: 14px 18px;
  border-left: 4px solid var(--accent-2);
  background: rgba(200, 93, 58, 0.08);
  border-radius: 0 14px 14px 0;
}

.mermaid-wrap {
  margin-top: 18px;
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(49, 65, 183, 0.1);
  background: linear-gradient(180deg, rgba(49, 65, 183, 0.05), rgba(255, 255, 255, 0.82));
  overflow: auto;
}

.breadcrumb {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 18px;
  color: var(--muted);
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-size: 0.9rem;
  text-decoration: none;
}

.article-hero { padding: 36px 36px 0; }

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 24px;
  align-items: start;
  margin-top: 24px;
}

.article-aside {
  position: sticky;
  top: 96px;
  align-self: start;
}

.aside-card { box-shadow: var(--shadow); }
.aside-card ul { margin: 10px 0 0; padding-left: 18px; }
.aside-card li + li { margin-top: 10px; }

.footer {
  padding: 22px 0 48px;
  color: var(--muted);
  font-family: "Manrope", "Aptos", "Segoe UI", sans-serif;
  font-size: 0.92rem;
}

.footer .site-shell {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 18px;
}

@media (max-width: 980px) {
  .hero-grid, .article-layout, .two-up, .three-up, .feature-grid { grid-template-columns: 1fr; }
  .article-aside { position: static; }
  .hero-copy { padding: 38px 26px 22px; }
  .hero-visual { padding: 18px; }
}

@media (max-width: 640px) {
  .site-shell { width: min(var(--page-width), calc(100vw - 24px)); }
  .site-header .site-shell { padding: 14px 0; }
  .section-card, .article-card, .article-hero { padding: 24px 20px; }
  .nav-links { display: none; }
}