:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #61708a;
  --paper: #ffffff;
  --sky: #eef6ff;
  --blue: #1769e0;
  --blue-dark: #0d4da8;
  --line: #dce8f8;
  --mint: #ddf7ec;
  --shadow: 0 20px 55px rgba(23, 61, 115, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 5%, rgba(118, 186, 255, .3), transparent 26rem),
    linear-gradient(180deg, #f7fbff 0, #ffffff 36rem);
  line-height: 1.62;
}

a { color: var(--blue); }

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 760;
  letter-spacing: -.02em;
}

.mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(145deg, #2b7fff, #7856ff);
  color: white;
  box-shadow: 0 8px 22px rgba(61, 104, 226, .24);
  font-size: 22px;
}

.nav-links { display: flex; gap: 20px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 15px; }
.nav-links a:hover { color: var(--blue); }

main { padding: 54px 0 88px; }

.hero {
  padding: clamp(34px, 7vw, 72px);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 34px;
  background: rgba(255,255,255,.84);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.eyebrow {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--mint);
  color: #137151;
  font-weight: 700;
  font-size: 13px;
}

h1, h2, h3 { line-height: 1.18; letter-spacing: -.035em; }
h1 { margin: 22px 0 16px; font-size: clamp(40px, 8vw, 70px); }
h2 { margin: 42px 0 14px; font-size: clamp(25px, 4vw, 34px); }
h3 { margin: 30px 0 8px; font-size: 21px; }
p { margin: 0 0 16px; }
.lead { max-width: 650px; color: var(--muted); font-size: clamp(18px, 2.7vw, 22px); }

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.card {
  display: block;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}

.card:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgba(40, 79, 135, .11); }
.card strong { display: block; margin-bottom: 8px; font-size: 20px; }
.card span { color: var(--muted); }

.doc {
  padding: clamp(28px, 6vw, 58px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.doc h1 { font-size: clamp(34px, 6vw, 54px); }
.meta { color: var(--muted); margin-bottom: 34px; }
.notice { padding: 18px 20px; border-radius: 16px; background: var(--sky); color: #25466f; }
ul { padding-left: 23px; }
li { margin: 8px 0; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 14px;
  color: white;
  background: var(--blue);
  text-decoration: none;
  font-weight: 700;
}
.button:hover { background: var(--blue-dark); }

footer {
  padding: 26px 0 40px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 660px) {
  .nav { align-items: flex-start; }
  .nav-links { justify-content: flex-end; gap: 10px 16px; }
  .cards { grid-template-columns: 1fr; }
  main { padding-top: 28px; }
}