:root {
  color-scheme: light;
  --ink: #15203a;
  --muted: #65708b;
  --blue: #4776e6;
  --deep: #102b76;
  --paper: #f7f9ff;
  --card: rgba(255, 255, 255, 0.92);
  --gold: #ffc857;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 5%, rgba(136, 167, 255, 0.65), transparent 26rem),
    linear-gradient(150deg, #eef3ff 0%, #ffffff 46%, #edf2ff 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

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

.shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 34px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 1.15rem;
  font-weight: 850;
  text-decoration: none;
}

.mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 15px;
  color: white;
  background: linear-gradient(145deg, #275bd6, #78a1ff);
  box-shadow: 0 12px 24px rgba(39, 91, 214, 0.24);
}

.nav-links { display: flex; gap: 18px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-weight: 650; text-decoration: none; }

.hero,
.card {
  border: 1px solid rgba(71, 118, 230, 0.12);
  background: var(--card);
  box-shadow: 0 24px 60px rgba(35, 63, 128, 0.10);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 7vw, 74px);
  border-radius: 40px;
  color: white;
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 200, 87, 0.92) 0 7%, transparent 8%),
    radial-gradient(circle at 82% 24%, rgba(255, 255, 255, 0.22), transparent 18rem),
    linear-gradient(145deg, #0f2d7e, #4776e6 58%, #82a8ff);
}

.hero::after {
  content: "✦  ☾  ✧";
  position: absolute;
  right: 7%;
  bottom: 8%;
  color: rgba(255, 255, 255, 0.75);
  font-size: clamp(2.8rem, 8vw, 6rem);
  letter-spacing: 0.2em;
}

.eyebrow {
  display: inline-flex;
  padding: 7px 13px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.12; letter-spacing: -0.035em; }
h1 { max-width: 650px; margin: 22px 0 14px; font-size: clamp(2.3rem, 7vw, 5rem); }
h2 { margin-top: 0; font-size: clamp(1.55rem, 4vw, 2.25rem); }
h3 { margin-bottom: 6px; font-size: 1.12rem; }
p { margin: 0 0 16px; }
.lead { max-width: 600px; color: rgba(255, 255, 255, 0.84); font-size: 1.12rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.card { padding: clamp(22px, 5vw, 42px); border-radius: 28px; }
.card.wide { grid-column: 1 / -1; }
.card p, .card li { color: var(--muted); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  margin-top: 6px;
  padding: 0 20px;
  border-radius: 16px;
  color: white;
  background: var(--blue);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 12px 24px rgba(71, 118, 230, 0.24);
}

.note {
  padding: 16px 18px;
  border-left: 4px solid var(--gold);
  border-radius: 12px;
  color: #68501b;
  background: #fff8df;
}

ol, ul { margin: 10px 0 18px; padding-left: 22px; }
footer { margin-top: 30px; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 680px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .grid { grid-template-columns: 1fr; }
  .card.wide { grid-column: auto; }
  .hero::after { opacity: 0.35; }
}