:root {
  --bg: #f3efe2;
  --bg-deep: #14211d;
  --ink: #1e241f;
  --muted: #596358;
  --line: rgba(20, 33, 29, 0.12);
  --panel: rgba(255, 251, 243, 0.86);
  --accent: #c76b1d;
  --accent-2: #2f6b5f;
  --shadow: 0 24px 80px rgba(20, 33, 29, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Gill Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(199, 107, 29, 0.2), transparent 30%),
    radial-gradient(circle at 85% 15%, rgba(47, 107, 95, 0.22), transparent 25%),
    linear-gradient(180deg, #f7f3ea 0%, #ece6d8 100%);
}

code {
  font-family: "Courier New", monospace;
  font-size: 0.95em;
}

.backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, transparent 0 70%, rgba(20, 33, 29, 0.08) 70% 100%),
    repeating-linear-gradient(
      90deg,
      transparent 0 48px,
      rgba(20, 33, 29, 0.04) 48px 49px
    );
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 90%);
}

.hero,
main {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  padding: 5rem 0 3rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--accent-2);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  line-height: 0.98;
}

h1 {
  max-width: 32ch;
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  line-height: 1.05;
}

.lede {
  max-width: none;
  margin: 1.5rem 0 0;
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--muted);
}

.hero-links {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #fff9f0;
  background: linear-gradient(135deg, var(--accent), #e18a45);
  box-shadow: 0 14px 36px rgba(199, 107, 29, 0.28);
}

.button.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.55);
  box-shadow: inset 0 0 0 1px var(--line);
}

main {
  display: grid;
  gap: 1.25rem;
  padding-bottom: 3rem;
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 1.6rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.grid.three-up {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.card,
.step {
  padding: 1.35rem;
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid var(--line);
}

.card h2,
.step h3,
.section-head h2,
.callout h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

.card p,
.step p,
.callout p {
  color: var(--muted);
  line-height: 1.65;
}

.workflow,
.architecture,
.callout,
.contact {
  padding: 1.5rem;
}

.contact p {
  margin: 0;
  max-width: 48rem;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--muted);
}

.contact a,
.site-footer a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.contact a:hover,
.site-footer a:hover {
  text-decoration: underline;
}

.site-footer {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 1.5rem 0 0;
}

.section-head {
  display: grid;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
}

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

.step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  margin-bottom: 1rem;
  border-radius: 50%;
  background: var(--bg-deep);
  color: #f7f3ea;
  font-weight: 700;
}

.topology {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 64px minmax(0, 1fr) 64px minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
}

.node {
  min-height: 180px;
  padding: 1.5rem;
  border-radius: 1.3rem;
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid var(--line);
  display: grid;
  gap: 0.4rem;
}

.node.accent {
  background: linear-gradient(135deg, rgba(47, 107, 95, 0.18), rgba(20, 33, 29, 0.06));
}

.node .label {
  margin: 0;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-2);
}

.node strong {
  font-size: 1.45rem;
}

.node span {
  color: var(--muted);
  line-height: 1.55;
}

.connector {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.callout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 1.5rem;
  background:
    linear-gradient(135deg, rgba(20, 33, 29, 0.96), rgba(31, 56, 49, 0.94));
  color: #f6f1e7;
}

.callout .eyebrow,
.callout p {
  color: rgba(246, 241, 231, 0.8);
}

@media (max-width: 900px) {
  .grid.three-up,
  .steps,
  .topology,
  .callout {
    grid-template-columns: 1fr;
  }

  .connector {
    width: 2px;
    height: 48px;
    margin: 0 auto;
    background: linear-gradient(180deg, transparent, var(--accent), transparent);
  }

  .hero {
    padding-top: 3.5rem;
  }
}