:root {
  color-scheme: dark;
  --ink: #f1f5f9;
  --muted: #9ba9ba;
  --line: rgba(167, 190, 214, 0.18);
  --accent: #69d5ff;
  --deep: #07111f;
  --deepest: #030811;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  position: relative;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    linear-gradient(rgba(255, 255, 255, 0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.024) 1px, transparent 1px),
    radial-gradient(circle at 70% 16%, #0b2940 0, transparent 32%),
    linear-gradient(145deg, var(--deep), var(--deepest) 72%);
  background-size: 72px 72px, 72px 72px, auto, auto;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.ambient {
  position: fixed;
  z-index: -1;
  border-radius: 999px;
  filter: blur(1px);
  pointer-events: none;
}

.ambient-one {
  top: 16%;
  right: -16rem;
  width: 38rem;
  height: 38rem;
  border: 1px solid rgba(105, 213, 255, 0.2);
  box-shadow: inset 0 0 100px rgba(105, 213, 255, 0.05);
}

.ambient-two {
  right: 7rem;
  bottom: 22%;
  width: 10rem;
  height: 10rem;
  border: 1px solid rgba(105, 213, 255, 0.1);
}

.site-header,
main,
footer {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 100px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
  font-size: 0.81rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(105, 213, 255, 0.55);
  place-items: center;
  color: var(--accent);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.2rem;
  font-weight: 400;
}

.header-contact {
  padding-block: 8px;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.header-contact:hover,
.header-contact:focus-visible {
  color: var(--accent);
}

.hero {
  display: flex;
  min-height: 640px;
  padding: 96px 0 112px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.eyebrow span {
  width: 34px;
  height: 1px;
  background: var(--accent);
}

h1 {
  max-width: 940px;
  margin: 32px 0 30px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(4.5rem, 9.6vw, 8.5rem);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.88;
}

.hero-copy {
  max-width: 640px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.7;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  margin-top: 44px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(105, 213, 255, 0.65);
  color: var(--ink);
  font-size: 0.88rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: color 180ms ease, gap 180ms ease;
}

.primary-link:hover,
.primary-link:focus-visible {
  gap: 28px;
  color: var(--accent);
}

.principles {
  display: grid;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
}

.principles article {
  min-height: 270px;
  padding: 40px 42px 48px;
}

.principles article + article {
  border-left: 1px solid var(--line);
}

.number {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
}

h2 {
  margin: 52px 0 14px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.7rem;
  font-weight: 400;
}

.principles p {
  max-width: 270px;
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.65;
}

footer {
  display: flex;
  min-height: 140px;
  align-items: center;
  justify-content: space-between;
  color: #718196;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .site-header,
  main,
  footer {
    width: min(100% - 32px, 1180px);
  }

  .site-header {
    min-height: 84px;
  }

  .brand {
    font-size: 0;
  }

  .brand-mark {
    font-size: 1.2rem;
  }

  .hero {
    min-height: 590px;
    padding: 72px 0 84px;
  }

  h1 {
    margin-top: 28px;
    font-size: clamp(3.5rem, 17vw, 5.4rem);
    line-height: 0.92;
  }

  .primary-link {
    max-width: 100%;
    gap: 12px;
    font-size: 0.76rem;
  }

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

  .principles article {
    min-height: 230px;
    padding: 34px 8px 40px;
  }

  .principles article + article {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  h2 {
    margin-top: 38px;
  }

  footer {
    min-height: 130px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
  }

  footer p {
    margin: 0;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}