:root {
  color-scheme: light;
  font-family: Pretendard, "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #202849;
  background: #eef1ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 4%, rgba(111, 202, 255, .24), transparent 32rem),
    radial-gradient(circle at 92% 18%, rgba(228, 157, 255, .28), transparent 34rem),
    linear-gradient(155deg, #f7f9ff, #e9eafd 62%, #f5edff);
}

main {
  width: min(880px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

header, article {
  border: 1px solid rgba(255, 255, 255, .86);
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 24px 70px rgba(37, 45, 91, .12);
  backdrop-filter: blur(18px);
}

header {
  padding: clamp(28px, 6vw, 56px);
  border-radius: 32px;
  margin-bottom: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: .1em;
  color: #675ca8;
}

.orb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #79dbff, #c7a5ff 56%, #ffbce7);
  box-shadow: inset 0 2px 5px #fff, 0 4px 14px rgba(111, 98, 211, .35);
}

h1 {
  margin: 22px 0 10px;
  font-size: clamp(2rem, 7vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -.045em;
}

.summary { margin: 0; color: #626b8d; line-height: 1.7; }
.meta { margin-top: 18px; color: #777f9e; font-size: .9rem; }

article { padding: clamp(24px, 5vw, 48px); border-radius: 28px; }
section + section { margin-top: 34px; padding-top: 30px; border-top: 1px solid #dfe3f4; }
h2 { margin: 0 0 12px; font-size: 1.2rem; letter-spacing: -.02em; }
p, li { color: #4f5879; line-height: 1.82; }
ul { margin: 8px 0 0; padding-left: 1.25rem; }
a { color: #5f55a5; text-underline-offset: 3px; }

nav { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
nav a {
  display: inline-flex;
  padding: 10px 14px;
  border-radius: 999px;
  background: #f0edff;
  font-weight: 800;
  text-decoration: none;
}

footer { padding: 28px 8px 0; color: #737b9a; text-align: center; font-size: .86rem; }

@media (max-width: 520px) {
  main { width: min(100% - 20px, 880px); padding-top: 18px; }
  header, article { border-radius: 22px; }
}