:root {
  --background: #f6f7fb;
  --surface: #ffffff;
  --surface-strong: #eef0f7;
  --text: #151826;
  --muted: #535a73;
  --accent: #5b4bdb;
  --accent-soft: #e6e2ff;
  --line: #dde0ea;
  --done: #1f8a5b;
  --done-soft: #dff3ea;
  --active: #b26b00;
  --active-soft: #fdf0d9;
  --shadow: 0 1px 2px rgb(21 24 38 / 6%), 0 8px 24px rgb(21 24 38 / 6%);
  --radius: 14px;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0c0e17;
    --surface: #141725;
    --surface-strong: #1b1f31;
    --text: #e8eaf4;
    --muted: #9aa1bd;
    --accent: #9d92ff;
    --accent-soft: #262245;
    --line: #262a3d;
    --done: #4fd19a;
    --done-soft: #12271f;
    --active: #f2b552;
    --active-soft: #2c2312;
    --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 8px 24px rgb(0 0 0 / 30%);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
  background: var(--surface-strong);
  border-radius: 6px;
  padding: 0.05em 0.35em;
}

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

.masthead {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--background) 82%, transparent);
  border-bottom: 1px solid var(--line);
}

.bar {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
  text-decoration: none;
}

.bar ul {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.bar ul a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.bar ul a:hover,
.bar ul a:focus-visible {
  color: var(--text);
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1rem;
}

.hero {
  padding: 5rem 0 3.5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.lede {
  max-width: 46rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 3rem 0 0;
}

.stats div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow);
}

.stats dt {
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.stats dd {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--line);
}

h2 {
  margin: 0 0 0.5rem;
  font-size: 1.8rem;
  letter-spacing: -0.01em;
}

h3 {
  margin: 0 0 0.4rem;
  font-size: 1.08rem;
}

.section-lede {
  margin: 0 0 2rem;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  box-shadow: var(--shadow);
}

.card p,
.columns p {
  margin: 0;
  color: var(--muted);
}

.layers {
  display: grid;
  gap: 0.5rem;
  margin: 1.5rem 0 2rem;
}

.layer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
}

.layer span {
  color: var(--muted);
  font-size: 0.95rem;
}

.layer-programs {
  border-left: 5px solid var(--accent);
}

.layer-services {
  border-left: 5px solid var(--done);
}

.layer-framework {
  border-left: 5px solid var(--active);
}

.layer-hardware {
  border-left: 5px solid var(--muted);
  background: var(--surface-strong);
}

.columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 2rem;
}

.roadmap {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.roadmap li {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.roadmap p {
  margin: 0;
  color: var(--muted);
}

.step {
  display: inline-block;
  justify-self: start;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--surface-strong);
  color: var(--muted);
}

.roadmap .done .step {
  background: var(--done-soft);
  color: var(--done);
}

.roadmap .active {
  border-color: var(--active);
}

.roadmap .active .step {
  background: var(--active-soft);
  color: var(--active);
}

.footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding: 2rem 1rem 3rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer p {
  margin: 0;
}

@media (max-width: 860px) {
  .stats,
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 560px) {
  .bar ul {
    display: none;
  }

  .hero {
    padding-top: 3rem;
  }

  .stats,
  .cards {
    grid-template-columns: 1fr;
  }

  .roadmap li {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}

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