:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --accent: #0369a1;
  --accent-hover: #075985;
  --radius: 10px;
  --max: 72ch;
  --page-max: 1100px;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

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

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

.wrap {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.brand img {
  height: 30px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--text);
}

.hero {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.75rem;
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: var(--max);
  margin: 0 0 1.25rem;
}

.pullquote {
  margin: 0 0 1.75rem;
  padding-left: 1rem;
  border-left: 3px solid var(--text);
  font-size: 1.05rem;
  max-width: var(--max);
}

.pullquote code {
  font-size: 0.92em;
  background: var(--border);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--text);
  color: var(--surface);
}

.btn-primary:hover {
  background: #1e293b;
  color: var(--surface);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--text);
}

.meta-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
}

.meta-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.meta-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 0.35rem;
  font-weight: 600;
}

.meta-value {
  margin: 0;
  font-weight: 600;
  font-size: 0.98rem;
}

section.block {
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--border);
}

section.block:last-of-type {
  border-bottom: none;
}

.section-kicker {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.block h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.prose {
  max-width: var(--max);
  color: var(--muted);
}

.prose p {
  margin: 0 0 1rem;
}

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

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.steps {
  margin-top: 1.5rem;
  display: grid;
  gap: 1rem;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}

.step:first-child {
  border-top: none;
  padding-top: 0;
}

.step-num {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--muted);
  min-width: 2rem;
}

.step h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 1.25rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

th,
td {
  text-align: left;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

tr:last-child td {
  border-bottom: none;
}

.faq {
  margin-top: 1.25rem;
}

.faq-item {
  padding: 1.1rem 0;
  border-top: 1px solid var(--border);
}

.faq-item:first-child {
  border-top: none;
  padding-top: 0;
}

.faq-item h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.sources {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.source-link {
  display: block;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  text-decoration: none;
  color: var(--text);
}

.source-link:hover {
  border-color: var(--text);
}

.source-link strong {
  display: block;
  margin-bottom: 0.25rem;
}

.source-link span {
  font-size: 0.9rem;
  color: var(--muted);
}

.site-footer {
  padding: 2rem 0 3rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.site-footer p {
  margin: 0.5rem 0 0;
  max-width: var(--max);
}

.mono-note {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --surface: #111827;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --border: #1e293b;
    --accent: #38bdf8;
    --accent-hover: #7dd3fc;
  }

  .btn-primary {
    background: var(--text);
    color: #0b1220;
  }

  .btn-primary:hover {
    background: #e2e8f0;
    color: #0b1220;
  }

  .pullquote code {
    background: #1e293b;
  }
}