:root {
  color-scheme: dark;
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #042e45;
  color: #fff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 640px);
  padding: clamp(24px, 6vw, 48px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 24px;
  background: #214c60;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.25);
}

.eyebrow { color: #47ffb9; font-weight: 700; letter-spacing: .08em; }
h1 { margin: 8px 0 20px; font-size: clamp(28px, 7vw, 44px); }
h2 { margin-top: 28px; font-size: 18px; }
p, li { color: rgba(255, 255, 255, 0.78); line-height: 1.65; }
.note { font-size: 13px; color: rgba(255, 255, 255, 0.58); }

button {
  width: 100%;
  margin-top: 24px;
  padding: 16px 20px;
  border: 0;
  border-radius: 14px;
  background: #ff6179;
  color: #042e45;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

button:disabled { opacity: .55; cursor: wait; }
#status { min-height: 1.6em; text-align: center; }
#status.success { color: #47ffb9; }
#status.error { color: #ffa3e7; }