:root {
  color-scheme: light dark;
  --background: #f3f1eb;
  --surface: rgba(255, 255, 255, 0.76);
  --ink: #10201c;
  --muted: #51615c;
  --mint: #167d70;
  --mint-soft: #cfe6df;
  --line: rgba(16, 32, 28, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 90% 5%, rgba(113, 186, 165, 0.25), transparent 32rem),
    var(--background);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  line-height: 1.62;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 80px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--mint);
  font-size: 0.82rem;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand::before {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 7px var(--mint-soft);
  content: "";
}

h1 {
  margin: 24px 0 12px;
  font-size: clamp(2.35rem, 8vw, 4.6rem);
  letter-spacing: -0.055em;
  line-height: 0.98;
}

h2 { margin: 34px 0 8px; font-size: 1.2rem; }
p, li { color: var(--muted); }
a { color: var(--mint); font-weight: 650; }
.lede { max-width: 620px; font-size: 1.12rem; }

.card {
  margin-top: 30px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(30, 58, 51, 0.08);
  backdrop-filter: blur(18px);
}

.links { display: grid; gap: 12px; margin-top: 28px; }
.links a {
  display: flex;
  justify-content: space-between;
  padding: 17px 19px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  text-decoration: none;
}

.meta { color: var(--muted); font-size: 0.88rem; }
footer { margin-top: 46px; color: var(--muted); font-size: 0.86rem; }

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0c1513;
    --surface: rgba(24, 40, 36, 0.78);
    --ink: #eff8f5;
    --muted: #a8bbb5;
    --mint: #72d1bd;
    --mint-soft: rgba(62, 152, 133, 0.28);
    --line: rgba(225, 246, 239, 0.12);
  }
}