:root {
  color-scheme: dark;
  --canvas: #0a1017;
  --panel: #111b27;
  --line: #294055;
  --ink: #f4f8fb;
  --muted: #afbdc9;
  --accent: #31b7e7;
  --accent-soft: #8bdfff;
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: radial-gradient(circle at 82% -8%, #164261 0, transparent 34rem), var(--canvas);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

main, footer { width: min(calc(100% - 2.5rem), var(--max)); margin: auto; }

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
}

a { color: var(--accent-soft); }

.brand { color: var(--ink); font-size: 1.25rem; font-weight: 800; text-decoration: none; letter-spacing: -0.04em; }

.nav-links { display: flex; gap: 1.3rem; font-size: 0.9rem; }
.nav-links a { text-decoration: none; }
.nav-links a:hover, footer a:hover { text-decoration: underline; }

.hero { max-width: 780px; padding: 6.5rem 0 3.5rem; }

.eyebrow, .section-label {
  color: var(--accent-soft);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.9rem, 8vw, 5.8rem); line-height: 0.98; letter-spacing: -0.065em; margin: 0.75rem 0 1.5rem; }
h2 { font-size: clamp(2rem, 4vw, 3.25rem); letter-spacing: -0.045em; line-height: 1.06; margin-bottom: 1.2rem; }
h3 { font-size: 1.08rem; letter-spacing: -0.02em; margin-bottom: 0.55rem; }

.lede { color: var(--muted); font-size: 1.25rem; max-width: 650px; }
.freedom {
  border-left: 3px solid var(--accent);
  color: var(--muted);
  margin: 1.8rem 0;
  max-width: 690px;
  padding: 0.2rem 0 0.2rem 1rem;
}
.freedom strong { color: var(--ink); }
.trust { color: var(--muted); font-size: 0.92rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1.8rem 0; }
.button { border: 1px solid var(--line); border-radius: 0.45rem; display: inline-flex; font-weight: 700; padding: 0.7rem 1rem; text-decoration: none; }
.button.primary { background: var(--accent); border-color: var(--accent); color: #051017; }
.button.primary:hover { background: #70d6f7; }
.button.secondary:hover { border-color: var(--accent); }

.showcase { border: 1px solid var(--line); box-shadow: 0 1.5rem 6rem #0008; overflow: hidden; }
.showcase img { display: block; max-width: 100%; height: auto; }

section:not(.hero):not(.showcase) { padding: 7rem 0; }
.problem { max-width: 770px; }
.problem p:not(.section-label), .start > p { color: var(--muted); font-size: 1.1rem; }

.formats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 2rem; }
.formats article { background: color-mix(in srgb, var(--panel) 92%, transparent); border: 1px solid var(--line); min-height: 11rem; padding: 1.35rem; }
.formats p { color: var(--muted); font-size: 0.94rem; }

.features { border-top: 1px solid var(--line); display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 4rem; }
.features ul { margin: 0; padding-left: 1.2rem; }
.features li { color: var(--muted); margin-bottom: 1rem; }

.values { border-top: 1px solid var(--line); max-width: 770px; }
.values > p:not(.section-label) { color: var(--muted); font-size: 1.08rem; }
.values-mark { color: var(--accent); font-size: 1.35em; vertical-align: -0.08em; }

.start { background: linear-gradient(125deg, #122d42, #101b27); border: 1px solid var(--line); margin: 1.5rem 0 5rem; padding: 3.25rem !important; }
pre { background: #071017; border: 1px solid #294055; overflow-x: auto; padding: 1rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.9em; }

footer { border-top: 1px solid var(--line); color: var(--muted); display: flex; justify-content: space-between; gap: 1rem; padding: 2.5rem 0 4rem; font-size: 0.88rem; }
footer p { margin: 0; }

@media (max-width: 680px) {
  body { font-size: 16px; }
  main, footer { width: min(calc(100% - 1.5rem), var(--max)); }
  nav { align-items: flex-start; }
  .nav-links { gap: 0.8rem; font-size: 0.82rem; }
  .hero { padding-top: 4.3rem; }
  section:not(.hero):not(.showcase) { padding: 4.5rem 0; }
  .formats, .features { grid-template-columns: 1fr; }
  .features { gap: 1rem; }
  .start { margin-bottom: 3rem; padding: 1.5rem !important; }
  footer { display: block; }
  footer a { display: inline-block; margin-top: 0.8rem; }
}