:root {
  color-scheme: dark;
  font-family: "Noto Sans KR", "Segoe UI", sans-serif;
  background: #05080f;
  color: #eef5ff;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 80% 10%, rgba(54, 221, 245, .1), transparent 30rem),
    linear-gradient(180deg, #070b13, #03060b);
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 64px;
}

header { margin-bottom: 24px; }

header p {
  margin: 0 0 10px;
  color: #36ddf5;
  font: 800 13px/1.2 ui-monospace, monospace;
  letter-spacing: .16em;
}

h1 {
  margin: 0 0 12px;
  font: 950 clamp(42px, 8vw, 82px)/.92 "Arial Black", sans-serif;
  letter-spacing: -.07em;
}

h1 strong { color: #bfff2b; }
header span { color: #9fadc1; font-weight: 700; }

video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(191, 255, 43, .42);
  background: #000;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .48);
}

section {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 28px;
  align-items: center;
  padding: 26px 0;
}

h2 { margin: 0; font-size: clamp(24px, 4vw, 38px); }
section p { margin: 0; color: #aebbd0; font-size: 17px; }

a {
  grid-column: 2;
  grid-row: 1 / span 2;
  padding: 17px 23px;
  border: 1px solid #bfff2b;
  background: #bfff2b;
  color: #07100d;
  font-weight: 900;
  text-decoration: none;
}

a:hover, a:focus-visible { background: transparent; color: #bfff2b; }

@media (max-width: 680px) {
  main { padding-top: 26px; }
  section { grid-template-columns: 1fr; }
  a { grid-column: 1; grid-row: auto; justify-self: start; margin-top: 12px; }
}