:root {
  --paper: #FAFAF8;
  --paper-alt: #F1F0EC;
  --card: #FFFFFF;
  --ink: #1C1D1F;
  --ink-soft: #5C5F62;
  --ink-faint: #93958F;
  --line: #E4E2DC;
  --line-strong: #CDCBC3;
  --accent: #2E5F55;
  --accent-soft: #E4EEEB;
  --on-accent: #FAFAF8;
  --header-h: 72px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #16181A;
    --paper-alt: #1D2022;
    --card: #202325;
    --ink: #ECEDEA;
    --ink-soft: #A8ABA6;
    --ink-faint: #6F726E;
    --line: #303335;
    --line-strong: #454847;
    --accent: #74BBAB;
    --accent-soft: #1C2C28;
    --on-accent: #10201C;
  }
}

:root[data-theme="dark"] {
  --paper: #16181A;
  --paper-alt: #1D2022;
  --card: #202325;
  --ink: #ECEDEA;
  --ink-soft: #A8ABA6;
  --ink-faint: #6F726E;
  --line: #303335;
  --line-strong: #454847;
  --accent: #74BBAB;
  --accent-soft: #1C2C28;
  --on-accent: #10201C;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Public Sans", -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 640px; }

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--accent);
  color: var(--on-accent);
  padding: 10px 16px;
  z-index: 1000;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

h1, h2, h3 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: clamp(34px, 5.4vw, 56px); line-height: 1.08; }
h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.15; margin-bottom: 16px; }
h3 { font-size: 19px; margin-bottom: 8px; }

p { margin: 0 0 14px; }

a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 12px;
}

.section-lede {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
}
.wordmark {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 600;
  font-size: 22px;
  color: var(--ink);
  text-decoration: none;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex: 1;
}
.main-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
}
.main-nav a:hover { color: var(--ink); }
.main-nav a[aria-current="page"] { color: var(--accent); }
.main-nav .nav-cta { margin-left: auto; color: var(--on-accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-strong);
  background: var(--card);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { opacity: 0.9; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-small { padding: 8px 16px; font-size: 13.5px; }
.btn-large { padding: 15px 28px; font-size: 16px; }

/* Hero */
.hero { padding: 76px 0 84px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-sub {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 18px 0 28px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-diagram {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: stretch;
}
.flow-node {
  border: 1px solid var(--line-strong);
  background: var(--card);
  border-radius: 10px;
  padding: 16px 18px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  text-align: center;
}
.flow-node-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}
.flow-arrow {
  text-align: center;
  color: var(--ink-faint);
  font-family: "IBM Plex Mono", monospace;
}

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--paper-alt); }

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.service-card {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 12px;
  padding: 24px 24px 22px;
}
.service-card p { font-size: 14.5px; color: var(--ink-soft); margin-bottom: 16px; }
.pill-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.pill-list li {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 11px;
  color: var(--ink-soft);
}

/* Products */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.product-card {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 12px;
  padding: 24px 24px 22px;
}
.product-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.product-card-head h3 { margin-bottom: 0; }
.product-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}
.product-card p { font-size: 14.5px; color: var(--ink-soft); margin-bottom: 18px; }

.capability-strip {
  margin-top: 32px;
  padding: 18px 22px;
  border-left: 2px solid var(--accent);
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 72ch;
}
.capability-strip strong { color: var(--ink); }

/* Steps */
.steps {
  list-style: none;
  counter-reset: step;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.steps li {
  counter-increment: step;
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 18px;
  position: relative;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: "IBM Plex Mono", monospace;
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 10px;
}
.step-title { display: block; font-weight: 700; font-size: 15px; margin-bottom: 4px; }
.step-desc { display: block; font-size: 13px; color: var(--ink-soft); }

/* Stats */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 32px;
}
.stat {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat-num { font-family: "Fraunces", Georgia, serif; font-size: 30px; font-weight: 600; }
.stat-desc { font-size: 13px; color: var(--ink-soft); }
.source-note {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--ink-faint);
  margin-top: 14px;
}

/* CTA final */
.cta-final { text-align: center; padding: 88px 0; }
.cta-final .section-lede { margin: 0 auto 28px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 32px;
}
.footer-brand p { color: var(--ink-soft); font-size: 14px; max-width: 34ch; margin-top: 10px; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { color: var(--ink-soft); text-decoration: none; font-size: 14px; }
.footer-nav a:hover { color: var(--ink); }
.footer-meta p { font-size: 13.5px; margin-bottom: 8px; }
.footer-meta a { color: var(--ink-soft); }
.footer-note { color: var(--ink-faint); font-family: "IBM Plex Mono", monospace; font-size: 12px; }
.footer-copy { color: var(--ink-faint); }

.footer-bottom {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.footer-powered {
  margin: 0;
  color: var(--ink-faint);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.02em;
}

/* Responsive */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-diagram { flex-direction: row; align-items: center; max-width: 420px; }
  .flow-node { flex: 1; padding: 12px 10px; font-size: 12px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }

  body.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 16px 24px 24px;
    gap: 16px;
  }
  body.nav-open .main-nav .nav-cta { margin-left: 0; }

  .hero { padding: 48px 0 56px; }
  .section { padding: 56px 0; }
  .footer-inner { grid-template-columns: 1fr; }
}