:root {
  color-scheme: dark;
  --ink: #f7f7f3;
  --muted: #a9a7b2;
  --panel: #18171d;
  --line: #34323b;
  --acid: #bcff2b;
  --bg: #09090b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 85% -10%, rgba(124, 73, 255, .2), transparent 32rem),
    radial-gradient(circle at -10% 40%, rgba(188, 255, 43, .08), transparent 26rem),
    var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  line-height: 1.65;
}

main {
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 44px;
}

header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-bottom: 44px;
}

.mark {
  display: grid;
  place-items: center;
  width: 104px;
  height: 104px;
  flex: 0 0 auto;
  border-radius: 25px;
  background: var(--acid);
  color: #050505;
  font-size: 52px;
  font-weight: 950;
  letter-spacing: -8px;
  padding-right: 8px;
  box-shadow: 0 16px 60px rgba(188, 255, 43, .18);
}

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 6px; font-size: clamp(40px, 9vw, 68px); line-height: 1; letter-spacing: -.05em; }
h2 { margin-bottom: 18px; font-size: 22px; letter-spacing: -.02em; }
p, li { color: var(--muted); }
a { color: var(--acid); }

.eyebrow {
  margin-bottom: 12px;
  color: var(--acid);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .18em;
}

.lede { margin: 0; font-size: 18px; }

section {
  margin: 22px 0;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(24, 23, 29, .88);
}

details { border-top: 1px solid var(--line); }
details:first-of-type { border-top: 0; }
summary { padding: 18px 0; cursor: pointer; font-weight: 750; }
details p { padding: 0 0 18px; }

.button {
  display: inline-block;
  margin-top: 4px;
  padding: 13px 18px;
  border-radius: 999px;
  background: var(--acid);
  color: #080808;
  font-weight: 850;
  text-decoration: none;
}

.policy { max-width: 760px; }
.policy h1 { margin-top: 12px; }
.policy section { margin: 16px 0; }
.updated { margin-bottom: 32px; }
.back { color: var(--muted); text-decoration: none; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 4px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 560px) {
  main { padding-top: 42px; }
  header { align-items: flex-start; gap: 16px; }
  .mark { width: 76px; height: 76px; border-radius: 19px; font-size: 38px; }
  section { padding: 20px; border-radius: 20px; }
  footer { flex-direction: column; }
}