:root {
  --bg: #03091c;
  --card: #0c1530;
  --ink: #eef3fb;
  --muted: #8fa0ba;
  --line: #1b2745;
  --teal: #1fe0b0;
  --blue: #1aa6ff;
  --grad: linear-gradient(135deg, var(--teal), var(--blue));
  color-scheme: dark;
}
/* The brand is dark-first; light mode keeps the navy hero but lightens content. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) { --card: #0e1936; }
}
:root[data-theme="light"] { --card: #0e1936; }

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: 0 16px;
}
a { color: var(--teal); }
main, .nav, footer { max-width: 980px; margin: 0 auto; }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(14px + env(safe-area-inset-top)) 0 14px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 19px; }
.brand img { border-radius: 8px; }

.btn {
  display: inline-block; text-decoration: none; font-weight: 700;
  padding: 12px 20px; border-radius: 12px;
  border: 1px solid var(--line); color: var(--ink); background: var(--card);
}
.btn.primary { background: var(--grad); color: #03091c; border-color: transparent; }
.btn.small { padding: 8px 14px; font-size: 15px; }

.hero { text-align: center; padding: 24px 0 40px; }
.logo { width: min(300px, 70vw); height: auto; display: block; margin: 0 auto 8px; }
.hero h1 { font-size: clamp(30px, 6vw, 50px); line-height: 1.1; margin: 8px auto 14px; max-width: 760px; letter-spacing: -0.5px; }
.lede { color: var(--muted); font-size: clamp(17px, 2.4vw, 20px); max-width: 640px; margin: 0 auto 24px; }
.ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.fine { color: var(--muted); font-size: 14px; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 10px 0 40px; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.step h2 { margin: 10px 0 6px; font-size: 21px; }
.step p { margin: 0; color: var(--muted); }
.num {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--grad); color: #03091c; font-weight: 800;
}

.uses, .get { margin: 0 0 40px; }
.uses h2, .get h2 { font-size: 26px; margin: 0 0 14px; }
.uses ul { padding-left: 20px; margin: 0; }
.uses li { margin: 8px 0; color: var(--muted); }
.uses b { color: var(--ink); }

.platforms { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.platform { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.platform h3 { margin: 0 0 6px; }
.platform p { margin: 0; color: var(--muted); }

footer { border-top: 1px solid var(--line); padding: 20px 0 calc(28px + env(safe-area-inset-bottom)); text-align: center; color: var(--muted); }
footer p { margin: 6px 0; }

/* Legal pages */
.doc { max-width: 720px; margin: 0 auto 40px; }
.doc h1 { font-size: 34px; margin: 10px 0 4px; }
.doc h2 { font-size: 20px; margin: 28px 0 8px; }
.doc p, .doc li { color: #c9d3e4; }