:root {
  color-scheme: light;
  --ink: #14213d;
  --muted: #5f6f8e;
  --line: rgba(255,255,255,.8);
  --brand-on: #0e2f50;
  --brand-store: #157dfa;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(143,198,255,.5), transparent 28rem),
    radial-gradient(circle at 88% 16%, rgba(201,174,255,.45), transparent 30rem),
    linear-gradient(145deg, #f8fbff, #eff4ff 50%, #fbf9ff);
}
a { color: #356df3; }
p, li { line-height: 1.7; color: var(--muted); }
h1, h2 { letter-spacing: -.035em; line-height: 1.1; }
h1 { font-size: clamp(2.4rem, 6vw, 4.8rem); }
h2 { margin-top: 0; }
header, main, footer {
  width: min(900px, calc(100% - 2rem));
  margin: 1rem auto;
  padding: clamp(1.4rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: rgba(255,255,255,.56);
  box-shadow: 0 28px 80px rgba(57,75,126,.14), inset 0 1px 0 #fff;
  backdrop-filter: blur(26px) saturate(140%);
}
header { display: flex; align-items: center; gap: 1.5rem; padding-block: 1rem; }
header > p { margin: 0 auto 0 0; font-size: 1.2rem; font-weight: 800; }
header a { color: var(--ink); text-decoration: none; }
header .brand-logo { display: block; width: 142px; height: auto; }
.brand-name { font-weight: 750; letter-spacing: -.045em; white-space: nowrap; }
.brand-word { display: inline-flex; align-items: baseline; font-size: 1.75rem; line-height: 1; }
.brand-on { color: var(--brand-on); }
.brand-store { color: var(--brand-store); }
header nav ul { display: flex; flex-wrap: wrap; gap: .7rem; margin: 0; padding: 0; list-style: none; }
header nav a { color: var(--muted); }
main section {
  margin: 1rem 0;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: 1.3rem;
  background: rgba(255,255,255,.42);
}
figure { display: none; }
footer { padding-block: 1.2rem; }
@media (max-width: 700px) { header { align-items: flex-start; flex-direction: column; } }