:root {
  color-scheme: light;
  --ink: #172126;
  --muted: #57666f;
  --line: #d8e0e4;
  --panel: #f6f9f8;
  --surface: #ffffff;
  --brand: #146c75;
  --brand-strong: #0b4650;
  --accent: #a4512c;
  --accent-soft: #fff1e9;
  --review: #74512a;
  --review-bg: #fff7dd;
  --ok: #246a45;
  --shadow: 0 18px 44px rgba(23, 33, 38, 0.11);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fbfcfb;
  color: var(--ink);
  line-height: 1.55;
}

a {
  color: var(--brand-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

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

.skip-link {
  background: var(--ink);
  color: #fff;
  left: 1rem;
  padding: 0.6rem 0.8rem;
  position: absolute;
  top: -4rem;
  z-index: 20;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-wrap,
.section,
.footer-inner {
  margin: 0 auto;
  max-width: 1160px;
  padding: 0 1.25rem;
}

.nav-wrap {
  align-items: center;
  display: flex;
  gap: 1.2rem;
  min-height: 72px;
  justify-content: space-between;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-weight: 760;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-mark {
  background: conic-gradient(from 140deg, var(--brand), #6c8d62, var(--accent), var(--brand));
  border-radius: 10px;
  display: inline-block;
  height: 2rem;
  width: 2rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.site-nav a {
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
  padding: 0.45rem 0.7rem;
  text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  background: var(--panel);
  color: var(--brand-strong);
}

.hero {
  background:
    linear-gradient(120deg, rgba(20, 108, 117, 0.09), rgba(164, 81, 44, 0.09)),
    linear-gradient(#fff, #f7faf9);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  min-height: 530px;
  padding-bottom: 3rem;
  padding-top: 3rem;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0.08em;
  margin: 0 0 0.8rem;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.12;
  margin: 0;
}

h1 {
  font-size: 4.2rem;
  letter-spacing: 0;
  max-width: 12ch;
}

h2 {
  font-size: 2.35rem;
  margin-bottom: 0.9rem;
}

h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

p {
  margin: 0.5rem 0 0;
}

.lede {
  color: #39484f;
  font-size: 1.18rem;
  margin-top: 1.1rem;
  max-width: 66ch;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.button {
  align-items: center;
  background: var(--brand);
  border: 1px solid var(--brand);
  border-radius: 8px;
  color: #fff;
  display: inline-flex;
  font-weight: 720;
  gap: 0.45rem;
  min-height: 44px;
  padding: 0.7rem 0.95rem;
  text-decoration: none;
}

.button.secondary {
  background: #fff;
  color: var(--brand-strong);
}

.button:hover {
  background: var(--brand-strong);
  color: #fff;
}

.visual-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 1rem;
}

.diagram {
  display: grid;
  gap: 0.75rem;
}

.diagram-row {
  align-items: center;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr auto 1fr;
}

.node {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 5px solid var(--brand);
  border-radius: 8px;
  padding: 0.85rem;
}

.node strong {
  display: block;
}

.arrow {
  color: var(--accent);
  font-weight: 800;
}

.section {
  padding-bottom: 3.5rem;
  padding-top: 3.5rem;
}

.section.compact {
  padding-top: 2.2rem;
}

.section-head {
  max-width: 760px;
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.4rem;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.05rem;
}

.card strong,
.metric strong {
  display: block;
}

.metric {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
}

.callout {
  background: var(--review-bg);
  border: 1px solid #edd28d;
  border-left: 5px solid var(--review);
  border-radius: 8px;
  margin-top: 1.2rem;
  padding: 1rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.tag {
  background: var(--accent-soft);
  border: 1px solid #f0c9b3;
  border-radius: 999px;
  color: #6d381f;
  display: inline-flex;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
}

.flow {
  counter-reset: step;
  display: grid;
  gap: 0.85rem;
  margin-top: 1.4rem;
}

.flow-step {
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: auto 1fr;
  padding: 1rem;
}

.flow-step::before {
  background: var(--brand);
  border-radius: 999px;
  color: #fff;
  content: counter(step);
  counter-increment: step;
  display: grid;
  font-weight: 800;
  height: 2rem;
  place-items: center;
  width: 2rem;
}

.mini-table {
  border-collapse: collapse;
  margin-top: 1.2rem;
  width: 100%;
}

.mini-table th,
.mini-table td {
  border-bottom: 1px solid var(--line);
  padding: 0.75rem;
  text-align: left;
  vertical-align: top;
}

.mini-table th {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
}

pre {
  background: #102025;
  border-radius: 8px;
  color: #eef8f6;
  overflow-x: auto;
  padding: 1rem;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.site-footer {
  background: #102025;
  color: #dce8e6;
}

.footer-inner {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  padding-bottom: 2.5rem;
  padding-top: 2.5rem;
}

.site-footer a {
  color: #dce8e6;
}

.footer-links {
  display: grid;
  gap: 0.4rem;
}

.small {
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer .small {
  color: #aec1bf;
}

@media (max-width: 860px) {
  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.7rem;
    padding-bottom: 0.8rem;
    padding-top: 0.8rem;
  }

  .site-nav {
    justify-content: flex-start;
  }

  h1 {
    font-size: 2.35rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .hero-grid,
  .grid,
  .grid.two,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: 0;
  }

  .diagram-row {
    grid-template-columns: 1fr;
  }

  .arrow {
    display: none;
  }
}