:root {
  --accent: #5b6cff;
  --accent2: #8b78ff;
  --ink: #1b1f2a;
  --muted: #5a6270;
  --bg: #ffffff;
  --soft: #f5f6fb;
  --line: #e8eaf2;
  --yellow: #ffe680; --pink: #ffc4d6; --blue: #bfe3ff; --green: #c6f6c9;
  --radius: 16px;
  --wrap: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased; line-height: 1.55;
}
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.1; }
a { color: inherit; text-decoration: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--accent); color: #fff; font-weight: 700; border-radius: 12px;
  padding: 11px 20px; border: 0; cursor: pointer; transition: transform .12s, box-shadow .12s, filter .12s;
  box-shadow: 0 8px 20px rgba(91,108,255,.35);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(91,108,255,.45); filter: brightness(1.04); }
.btn-lg { padding: 15px 28px; font-size: 17px; }
.btn-sm { padding: 8px 15px; font-size: 14px; box-shadow: none; }
.btn-ghost { background: transparent; color: var(--accent); box-shadow: none; border: 1.5px solid var(--line); }
.btn-ghost:hover { background: var(--soft); box-shadow: none; }

.nav {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between;
  max-width: var(--wrap); margin: 0 auto; padding: 16px 24px;
  backdrop-filter: saturate(1.4) blur(8px);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 20px; }
.logo { font-size: 22px; }
.nav-links { display: flex; align-items: center; gap: 22px; font-weight: 600; color: var(--muted); }
.nav-links a:not(.btn):hover { color: var(--ink); }

.hero {
  max-width: var(--wrap); margin: 0 auto; padding: 60px 24px 40px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
}
.pill {
  display: inline-block; background: var(--soft); border: 1px solid var(--line);
  color: var(--accent); font-weight: 700; font-size: 13px; padding: 6px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero h1 { font-size: 56px; margin: 0 0 18px; }
.grad { background: linear-gradient(120deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 20px; color: var(--muted); margin: 0 0 28px; max-width: 30em; }
.cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }
.trust { display: flex; gap: 10px; flex-wrap: wrap; color: var(--muted); font-size: 14px; }

.hero-art { position: relative; height: 380px; }
.sticky {
  position: absolute; width: 190px; padding: 18px 16px; border-radius: 12px;
  font-weight: 600; color: #3a3520; font-size: 16px; line-height: 1.4;
  box-shadow: 0 16px 34px rgba(30,32,60,.20); transform: rotate(var(--r));
  transition: transform .2s;
}
.sticky:hover { transform: rotate(0deg) scale(1.04); z-index: 5; }
.s-y { background: var(--yellow); top: 10px; left: 30px; }
.s-p { background: var(--pink); top: 150px; left: 5px; }
.s-b { background: var(--blue); top: 60px; right: 20px; }
.s-g { background: var(--green); top: 220px; right: 55px; }

.strip {
  max-width: var(--wrap); margin: 20px auto; padding: 0 24px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.strip div { background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; text-align: center; }
.strip b { display: block; font-size: 26px; color: var(--accent); }
.strip span { font-size: 13px; color: var(--muted); }

section h2 { font-size: 38px; text-align: center; margin: 0 auto 40px; max-width: 16em; }

.features { max-width: var(--wrap); margin: 0 auto; padding: 80px 24px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: transform .15s, box-shadow .15s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(30,32,60,.10); }
.ic { width: 52px; height: 52px; border-radius: 13px; background: linear-gradient(135deg, #eef0ff, #e7eaff); display: grid; place-items: center; font-size: 26px; margin-bottom: 14px; }
.card h3 { font-size: 20px; margin: 0 0 8px; }
.card p { color: var(--muted); margin: 0; }
kbd { background: var(--soft); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; font-size: 12px; font-family: inherit; }

.how { background: var(--soft); padding: 80px 24px; }
.steps { max-width: 760px; margin: 0 auto; padding: 0; list-style: none; display: grid; gap: 24px; }
.steps li { display: flex; gap: 20px; align-items: flex-start; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.steps .n { flex: none; width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: 18px; }
.steps b { font-size: 19px; }
.steps p { margin: 4px 0 0; color: var(--muted); }

.final { text-align: center; padding: 90px 24px; max-width: 700px; margin: 0 auto; }
.final h2 { font-size: 42px; margin-bottom: 12px; }
.final > p { font-size: 19px; color: var(--muted); margin: 0 0 28px; }
.fineprint { font-size: 14px !important; margin-top: 18px !important; }

.foot {
  border-top: 1px solid var(--line); max-width: var(--wrap); margin: 0 auto;
  padding: 30px 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  color: var(--muted); font-size: 14px;
}
.foot nav { display: flex; gap: 20px; }
.foot nav a:hover { color: var(--ink); }
.foot .brand { color: var(--ink); }
.copyright { font-size: 13px; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 36px; }
  .hero h1 { font-size: 42px; }
  .hero-art { height: 320px; order: -1; }
  .strip { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: 1fr; }
  section h2 { font-size: 30px; }
  .nav-links a:not(.btn) { display: none; }
}

@media (prefers-color-scheme: dark) {
  :root { --bg: #14161d; --ink: #eef0f6; --muted: #a2a9b8; --soft: #1c1f28; --line: #2a2e3a; }
  .ic { background: linear-gradient(135deg, #232a4d, #262a3f); }
  .card, .steps li { background: #191c24; }
}