:root {
  --bg: #0f1419;
  --bg-elevated: #161d26;
  --text: #e8edf2;
  --text-muted: #9aa5b1;
  --accent: #3d8bfd;
  --accent-soft: rgba(61, 139, 253, 0.12);
  --border: rgba(255, 255, 255, 0.08);
  --font-sans: system-ui, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -10%, var(--accent-soft), transparent 55%),
    var(--bg);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(960px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 20, 25, 0.85);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.85rem;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
}

.logo:hover {
  text-decoration: none;
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

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

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

.hero {
  padding: clamp(3rem, 8vw, 5rem) 0;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.lead {
  margin: 0;
  max-width: 42ch;
  font-size: 1.125rem;
  color: var(--text-muted);
}

.section {
  padding: 3rem 0;
}

.section--muted {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  font-weight: 600;
}

.section p {
  margin: 0;
  max-width: 65ch;
  color: var(--text-muted);
}

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

.footer-inner {
  display: flex;
  justify-content: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

body {
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}