:root {
  color-scheme: dark;
  --bg: #070b14;
  --surface: #101827;
  --surface-soft: #151f33;
  --text: #ecf2ff;
  --muted: #9db0d0;
  --border: #26344d;
  --primary: #5b7cff;
  --primary-strong: #4f67d6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(circle at top, #111f3d 0%, var(--bg) 45%);
  color: var(--text);
  line-height: 1.55;
}

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(7, 11, 20, 0.85);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.nav {
  min-height: 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.nav nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nav nav a {
  text-decoration: none;
  color: var(--muted);
}

.nav nav a.button {
  color: #f7faff;
}

.brand {
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.button {
  display: inline-block;
  text-decoration: none;
  background: var(--primary);
  color: #f7faff;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
}

.button:hover {
  background: var(--primary-strong);
}

.button.ghost {
  background: transparent;
  border-color: var(--border);
}

.hero {
  padding: 6rem 0 4rem;
}

.kicker {
  color: #89a8ff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
}

h1 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.1;
  max-width: 16ch;
}

h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.35rem, 3vw, 1.85rem);
}

.lead {
  max-width: 58ch;
  color: var(--muted);
}

.cta-row {
  margin-top: 1.75rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.section {
  padding: 3.5rem 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(16, 24, 39, 0.3), rgba(16, 24, 39, 0.65));
}

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

.card,
.panel {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 14px;
  padding: 1.1rem 1rem;
}

.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
}

.panel-label {
  margin: 0;
  color: #95a8cf;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.bullets {
  margin: 1rem 0 0;
  padding-left: 1rem;
}

.bullets li {
  margin: 0.45rem 0;
}

.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 1rem;
}

.footer-grid a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  margin-bottom: 0.45rem;
}

.stack {
  display: grid;
  gap: 1rem;
}

.eyebrow {
  color: #89a8ff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page {
  padding: 3rem 0 4rem;
}

.form {
  display: grid;
  gap: 0.8rem;
}

.form input,
.form textarea,
.form select {
  width: 100%;
  background: #0e1728;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 0.75rem;
}

@media (max-width: 900px) {
  .grid-3,
  .split,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 4rem 0 2.5rem;
  }

  .section {
    padding: 2.5rem 0;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(1120px, calc(100% - 1.25rem));
  }

  .site-header {
    position: static;
  }

  .nav {
    min-height: auto;
    padding: 0.85rem 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav nav {
    width: 100%;
    gap: 0.5rem;
  }

  .nav nav a {
    padding: 0.35rem 0;
  }

  .nav nav a.button {
    width: 100%;
    text-align: center;
  }

  h1 {
    max-width: 100%;
  }
}