:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  background: #202224;
  color: #efede7;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 280px; }
[hidden] { display: none !important; }
.shell { width: min(100% - 48px, 440px); margin: 0 auto; padding: 48px 0 32px; }
.brand-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 28px; border-bottom: 1px solid #404245; }
.brand-header img { display: block; width: 108px; height: auto; }
.environment { flex-shrink: 0; padding: 5px 9px; border: 1px solid #505256; border-radius: 4px; color: #c5c5bf; font-size: 12px; }
main { padding: 56px 0 0; }
.eyebrow { margin: 0 0 18px; color: #bcb9b1; font-size: 13px; letter-spacing: .04em; }
h1 { margin: 0; font-size: clamp(28px, 6vw, 34px); letter-spacing: -.04em; line-height: 1.25; font-weight: 600; }
.intro { margin: 18px 0 32px; color: #c9c7c1; line-height: 1.75; font-size: 15px; }
.auth-status { min-height: 22px; margin: 0 0 16px; color: #dedbd3; font-size: 13px; line-height: 1.6; }
.actions { display: grid; gap: 12px; }
button { width: 100%; min-height: 52px; border: 0; border-radius: 5px; font: inherit; font-size: 15px; font-weight: 600; cursor: pointer; padding: 14px 18px; transition: background-color .15s; }
.primary-action { background: #ece8de; color: #252728; }
.primary-action:hover:not(:disabled) { background: #fffaf0; }
.secondary-action { background: transparent; color: #e1ded6; border: 1px solid #656568; }
.secondary-action:hover:not(:disabled) { background: #2f3234; }
button:disabled { cursor: default; opacity: .55; }
button:focus-visible { outline: 2px solid #e7cf9c; outline-offset: 4px; }
.announcement { min-height: 24px; margin: 14px 0 0; font-size: 13px; line-height: 1.7; color: #e4cfad; overflow-wrap: anywhere; }
.privacy-note { margin: 22px 0 30px; color: #bcbab3; font-size: 13px; line-height: 1.8; }
.next-step { border-top: 1px solid #404245; padding-top: 25px; }
h2 { margin: 0; font-size: 14px; font-weight: 500; }
.next-step p { margin: 10px 0 0; font-size: 13px; color: #bcbab3; line-height: 1.7; }
footer { margin-top: 48px; padding-top: 24px; border-top: 1px solid #404245; }
footer p { margin: 0 0 10px; color: #aaa9a3; font-size: 12px; line-height: 1.8; }
.no-script { padding: 20px; text-align: center; line-height: 1.7; }
@media (max-width: 480px) {
  .shell { padding-top: 28px; }
  main { padding-top: 40px; }
  footer { margin-top: 36px; }
}
@media (prefers-reduced-motion: reduce) { button { transition: none; } }