:root {
  color-scheme: dark;
  --bg: #0a0d10;
  --panel: #111820;
  --text: #f3f7f8;
  --muted: #9eaeb4;
  --line: #2d3b43;
  --accent: #56c5ff;
  --accent-2: #8ce8c6;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background:
    radial-gradient(circle at 20% 15%, rgba(86, 197, 255, 0.14), transparent 34rem),
    radial-gradient(circle at 85% 80%, rgba(140, 232, 198, 0.1), transparent 30rem),
    linear-gradient(145deg, #07090b 0%, var(--bg) 48%, #0d1115 100%);
  color: var(--text);
  display: grid;
  grid-template-rows: 1fr auto;
}

.page-shell {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  min-height: 92vh;
  display: grid;
  align-items: center;
}

.hero {
  max-width: 760px;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(4rem, 11vw, 8.5rem);
  line-height: 0.92;
  font-weight: 760;
  letter-spacing: 0;
}

.tagline {
  margin: 28px 0 34px;
  max-width: 620px;
  color: var(--muted);
  font-size: clamp(1.2rem, 2.2vw, 1.72rem);
  line-height: 1.45;
}

.contact-link {
  color: var(--text);
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(17, 24, 32, 0.72);
  text-decoration: none;
  font-weight: 650;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    transform 160ms ease;
}

.contact-link:hover {
  background: rgba(28, 39, 50, 0.86);
  border-color: var(--accent);
  transform: translateY(-1px);
}

footer {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0 32px;
  color: #718087;
  font-size: 0.92rem;
}

@media (max-width: 640px) {
  .page-shell,
  footer {
    width: min(100% - 32px, 1120px);
  }

  .page-shell {
    min-height: 88vh;
  }

  .hero {
    padding: 56px 0;
  }

  h1 {
    font-size: clamp(3.25rem, 17vw, 5rem);
  }
}