:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5d687b;
  --paper: #ffffff;
  --wash: #f3f7ff;
  --line: #dbe4f2;
  --brand: #2459d3;
  --brand-dark: #163d9b;
  --accent: #ffb23e;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #edf4ff 0, #f8fbff 360px, #fff 100%);
  line-height: 1.65;
}

a { color: var(--brand-dark); }
a:hover { color: var(--brand); }

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

header {
  padding: 56px 0 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--brand);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.2; }
h1 { margin: 0; font-size: clamp(2rem, 7vw, 3.8rem); letter-spacing: -0.04em; }
h2 { margin-top: 0; font-size: 1.3rem; }
p { margin: 0.7rem 0; }

.lede {
  max-width: 700px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 1.08rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  padding: 14px 0 48px;
}

.card {
  margin-bottom: 18px;
  padding: clamp(20px, 4vw, 32px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: 0 16px 45px rgba(37, 68, 124, 0.08);
}

.card-link {
  display: block;
  min-height: 190px;
  color: inherit;
  text-decoration: none;
}

.card-link span {
  display: inline-block;
  margin-top: 10px;
  color: var(--brand);
  font-weight: 750;
}

ul { padding-left: 1.25rem; }
li + li { margin-top: 0.45rem; }

.notice {
  border-left: 4px solid var(--accent);
  background: #fff9ed;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

nav a {
  font-weight: 700;
  text-decoration: none;
}

footer {
  padding: 22px 0 48px;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 560px) {
  header { padding-top: 38px; }
  .shell { width: min(100% - 22px, 920px); }
  .card { border-radius: 16px; }
}