:root {
  color-scheme: light;
  --ink: #122028;
  --muted: #56656d;
  --paper: #fffdf8;
  --line: #d9e3df;
  --teal: #087f78;
  --coral: #ef6d60;
  --gold: #e7aa2f;
  --night: #102b35;
}

* { box-sizing: border-box; }

html { background: #edf4f1; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 0%, rgba(8, 127, 120, .12), transparent 28rem),
    radial-gradient(circle at 90% 12%, rgba(239, 109, 96, .12), transparent 24rem),
    #edf4f1;
  font: 16px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  width: min(880px, calc(100% - 32px));
  margin: 40px auto;
  padding: clamp(28px, 6vw, 64px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: 0 24px 70px rgba(16, 43, 53, .12);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--night);
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.mark {
  width: 34px;
  height: 34px;
  border: 3px solid var(--night);
  border-radius: 10px;
  background: linear-gradient(135deg, var(--teal) 0 33%, var(--coral) 33% 66%, var(--gold) 66%);
}

h1, h2 { line-height: 1.12; }
h1 { margin: 34px 0 12px; font-size: clamp(2.25rem, 7vw, 4.6rem); letter-spacing: -.055em; }
h2 { margin-top: 36px; font-size: 1.35rem; }
p, li { color: var(--muted); }
a { color: var(--teal); font-weight: 700; }

.lede { max-width: 64ch; font-size: 1.1rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin: 30px 0; }
.card { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.card h2 { margin: 0 0 6px; }
.card p { margin: 0 0 14px; }
.meta { padding: 14px 18px; border-left: 4px solid var(--gold); background: #fff7e5; border-radius: 0 12px 12px 0; }
footer { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: .92rem; }

@media (max-width: 560px) {
  main { width: min(100% - 18px, 880px); margin: 9px auto; border-radius: 20px; }
}