:root {
  color-scheme: dark;
  font-family: "Pretendard", "Noto Sans KR", system-ui, sans-serif;
  background: #020811;
  color: #dcebf4;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: 22px 14px 48px;
  background:
    radial-gradient(circle at 50% 0, rgba(42, 139, 191, 0.2), transparent 34%),
    linear-gradient(180deg, #061522, #020811 72%);
}

main {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: 22px clamp(18px, 5vw, 42px) 36px;
  border: 1px solid rgba(97, 195, 236, 0.5);
  border-radius: 14px;
  background: rgba(3, 16, 27, 0.96);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.48), inset 0 0 0 2px rgba(1, 8, 14, 0.9);
}

header {
  margin: -4px -4px 22px;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(96, 190, 230, 0.36);
  text-align: center;
}

header small,
.eyebrow {
  display: block;
  color: #7bc9e8;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

h1 {
  margin: 6px 0 0;
  color: #fff0ad;
  font-size: clamp(24px, 7vw, 34px);
}

h2 {
  margin: 26px 0 9px;
  color: #b9eaff;
  font-size: 17px;
}

p,
li {
  color: #c5d7e1;
  font-size: 14px;
  line-height: 1.7;
}

ul,
ol {
  padding-left: 22px;
}

a {
  color: #8edfff;
  text-underline-offset: 3px;
}

.notice {
  margin: 18px 0;
  padding: 14px 16px;
  border: 1px solid rgba(103, 205, 246, 0.34);
  border-radius: 9px;
  background: rgba(13, 48, 70, 0.58);
}

.action-link {
  display: grid;
  place-items: center;
  min-height: 46px;
  margin: 18px 0;
  padding: 10px 16px;
  border: 1px solid rgba(255, 216, 112, 0.7);
  border-radius: 8px;
  background: linear-gradient(180deg, #173d5b, #071827);
  color: #fff0ad;
  font-weight: 900;
  text-align: center;
  text-decoration: none;
}

footer {
  margin-top: 30px;
  color: #7897a8;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 480px) {
  body {
    padding: 8px;
  }

  main {
    padding: 16px 15px 28px;
    border-radius: 10px;
  }

  p,
  li {
    font-size: 13px;
  }
}