:root {
  --bg: #0b0e12;
  --bg-soft: #12161d;
  --surface: #171c24;
  --text: #f5f7fa;
  --muted: #aeb7c4;
  --line: rgba(255, 255, 255, 0.12);
  --green: #84ce1f;
  --blue: #168bd1;
  --orange: #f15a16;
  --max-width: 1160px;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.65;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.container--narrow {
  max-width: 820px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 14, 18, 0.88);
  backdrop-filter: blur(14px);
}

.site-header__inner,
.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-header__inner {
  min-height: 72px;
}

.brand {
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 1.4rem;
}

nav a {
  color: var(--muted);
  font-size: 0.94rem;
  text-decoration: none;
}

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

.hero {
  min-height: 86vh;
  display: grid;
  place-items: center;
  padding: 6rem 0 5rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 25%, rgba(22, 139, 209, 0.16), transparent 32rem),
    radial-gradient(circle at 30% 55%, rgba(132, 206, 31, 0.08), transparent 26rem),
    radial-gradient(circle at 70% 60%, rgba(241, 90, 22, 0.08), transparent 26rem),
    var(--bg);
}

.hero__content {
  text-align: center;
}

.hero__logo {
  width: min(100%, 720px);
  margin: 0 auto 2rem;
  border-radius: 12px;
}

.eyebrow,
.section-label {
  margin: 0 0 0.75rem;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 920px;
  margin-inline: auto;
  margin-bottom: 1.25rem;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

h2 {
  margin-bottom: 1.5rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 0.75rem;
  font-size: 1.65rem;
}

.hero__intro {
  max-width: 790px;
  margin: 0 auto 2rem;
  color: var(--muted);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.9rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
}

.button--primary {
  background: var(--blue);
  color: white;
}

.button--secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.button:hover {
  transform: translateY(-1px);
}

.section {
  padding: 7rem 0;
  background: #f3f5f7;
  color: #14181e;
}

.section--dark {
  background: var(--bg-soft);
  color: var(--text);
}

.section--cta {
  text-align: center;
  background:
    linear-gradient(rgba(11, 14, 18, 0.9), rgba(11, 14, 18, 0.9)),
    radial-gradient(circle at center, rgba(22, 139, 209, 0.28), transparent 38rem);
  color: var(--text);
}

.section p {
  color: #4d5661;
  font-size: 1.08rem;
}

.section--dark p,
.section--cta p {
  color: var(--muted);
}

.pillar-grid,
.feature-grid {
  display: grid;
  gap: 1rem;
}

.pillar-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 2.5rem;
}

.card {
  min-height: 280px;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.card__number {
  display: inline-block;
  margin-bottom: 3rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
}

.card--green {
  border-top: 4px solid var(--green);
}

.card--blue {
  border-top: 4px solid var(--blue);
}

.card--orange {
  border-top: 4px solid var(--orange);
}

.split {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.architecture {
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  text-align: center;
}

.architecture div {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  font-weight: 800;
}

.architecture span {
  display: block;
  padding: 0.35rem;
  color: var(--blue);
  font-size: 1.15rem;
}

.feature-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 2.5rem;
}

.feature-grid div {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.035);
}

blockquote {
  margin: 2.5rem 0;
  padding: 1.5rem 0 1.5rem 1.5rem;
  border-left: 4px solid var(--orange);
  color: #222933;
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 750;
  line-height: 1.35;
}

.status {
  padding-top: 1rem;
  border-top: 1px solid #d5dbe1;
}

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  background: #080a0d;
  color: var(--muted);
}

.site-footer p {
  margin: 0;
  font-size: 0.88rem;
}

@media (max-width: 780px) {
  .site-header__inner,
  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header__inner {
    padding: 1rem 0;
  }

  nav {
    width: 100%;
    gap: 1rem;
    overflow-x: auto;
  }

  .hero {
    min-height: auto;
    padding-top: 4rem;
  }

  .pillar-grid,
  .feature-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .split {
    gap: 2rem;
  }

  .section {
    padding: 5rem 0;
  }
}