:root {
  --bg: #f8f9ff;
  --card: #ffffff;
  --text: #17151f;
  --muted: #646174;
  --purple: #3b08b8;
  --blue: #0967f2;
  --border: #ded9f5;
  --max: 900px;
  --gradient: linear-gradient(90deg, #0967f2 0%, #3b08b8 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 8% 0%, rgba(9,103,242,.07), transparent 30rem),
    radial-gradient(circle at 92% 8%, rgba(59,8,184,.07), transparent 32rem),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}
header, main, footer { max-width: var(--max); margin: 0 auto; padding: 24px; }
header {
  padding-top: 34px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.35rem;
}
.brand img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: block;
}
.brand-name {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
nav a, footer a {
  color: var(--text);
  text-decoration: none;
  margin-left: 18px;
}
nav a:hover, footer a:hover { color: var(--purple); }
.hero { padding: 72px 24px 55px; }
.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero h1 {
  font-size: clamp(2.4rem, 7vw, 4.8rem);
  line-height: 1.05;
  margin: 0 0 24px;
  letter-spacing: -0.04em;
}
.hero p {
  font-size: 1.25rem;
  max-width: 720px;
  color: var(--muted);
}
.card {
  position: relative;
  overflow: hidden;
  background: rgba(255,255,255,.9);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  margin: 22px 0;
  box-shadow: 0 18px 55px rgba(44, 18, 130, .06);
}
.card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--blue), var(--purple));
}
h1, h2, h3 { line-height: 1.2; }
h2 { margin-top: 36px; }
.card h2 { margin-top: 0; }
main:not(.hero) a { color: var(--purple); }
.small, footer { color: var(--muted); font-size: .95rem; }
footer {
  border-top: 1px solid var(--border);
  margin-top: 60px;
  padding-bottom: 44px;
}
footer a:first-of-type { margin-left: 0; }

@media (max-width: 650px) {
  header { align-items: flex-start; flex-direction: column; }
  nav a { margin: 0 18px 0 0; }
  .hero { padding-top: 45px; }
}