:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #07131f;
  color: #edf7ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 80% 0%, rgba(19, 212, 224, 0.14), transparent 34rem),
    linear-gradient(145deg, #07131f, #0b2130 62%, #07131f);
}

main {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
  padding: clamp(24px, 5vw, 56px);
  border: 1px solid rgba(159, 212, 233, 0.2);
  border-radius: 28px;
  background: rgba(13, 32, 47, 0.88);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
}

h1, h2 { color: #fff; line-height: 1.18; }
h1 { margin-top: 0; font-size: clamp(2rem, 6vw, 3.25rem); }
h2 { margin-top: 2.2rem; font-size: 1.3rem; }
p, li { color: #bdd0df; line-height: 1.7; }
a { color: #58e7ef; }
.eyebrow { color: #b7ff00; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
.meta { padding: 16px 20px; border-radius: 16px; background: rgba(88, 231, 239, 0.07); }
.back { display: inline-flex; margin-bottom: 24px; font-weight: 700; }
footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(159, 212, 233, 0.18); }

@media (max-width: 560px) {
  main { width: min(100% - 20px, 900px); margin: 10px auto; border-radius: 20px; }
}