:root {
  color-scheme: light;
  --ink: #1e2b3e;
  --muted: #596b82;
  --blue: #2f6fd4;
  --blue-dark: #2055ab;
  --surface: #ffffff;
  --ground: #eef5ff;
  --line: #d4e1f2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 0%, #d1ecff 0, transparent 34rem),
    var(--ground);
  font-family: ui-rounded, "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

.shell {
  width: min(780px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0;
}

.landing { min-height: 100vh; display: grid; align-content: center; }

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .16em;
}

h1, h2 { line-height: 1.15; }
h1 { margin: 0; font-size: clamp(2.35rem, 8vw, 4.5rem); letter-spacing: -.055em; }
h2 { margin: 2.25rem 0 .5rem; font-size: 1.28rem; }
p, li { color: var(--muted); }
.lede { max-width: 34rem; margin: 1.25rem 0 2rem; font-size: 1.1rem; }

.cards { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .back-link {
  text-decoration: none;
  color: inherit;
}
.card {
  display: grid;
  gap: 4px;
  min-height: 132px;
  padding: 22px;
  border: 2px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: 0 5px 0 #b8cce4;
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 7px 0 #b8cce4; }
.card span { color: var(--blue-dark); font-size: 1.15rem; font-weight: 800; }
.card small { color: var(--muted); }

.page-header { margin-bottom: 2.5rem; }
.page-header h1 { font-size: clamp(2.2rem, 7vw, 3.5rem); }
.back-link { color: var(--blue); font-weight: 750; }
.back-link:hover { text-decoration: underline; }
.content {
  padding: clamp(22px, 5vw, 46px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 10px 32px rgba(42, 83, 135, .09);
}
.content h2:first-child { margin-top: 0; }
.content a { color: var(--blue-dark); font-weight: 700; }
.content ul { padding-left: 1.3rem; }
.meta { margin: 0; font-size: .92rem; }
.footer { margin: 2rem 0 0; font-size: .88rem; }

@media (max-width: 560px) {
  .shell { width: min(100% - 28px, 780px); padding: 42px 0; }
  .cards { grid-template-columns: 1fr; }
}