.comparison-update-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(10, 10, 10, .72);
  backdrop-filter: blur(5px);
  opacity: 0;
  transition: opacity .2s ease;
}

.comparison-update-overlay.is-open { opacity: 1; }

.comparison-update-dialog {
  position: relative;
  width: min(100%, 470px);
  padding: 30px;
  border: 3px solid #0a0a0a;
  border-radius: 7px;
  background: #f4f1ea;
  color: #0a0a0a;
  box-shadow: 10px 10px 0 #42d9ff;
  transform: translateY(14px) rotate(-.5deg);
  transition: transform .2s ease;
  font-family: "Noto Sans TC", -apple-system, BlinkMacSystemFont, sans-serif;
}

.comparison-update-overlay.is-open .comparison-update-dialog {
  transform: translateY(0) rotate(-.5deg);
}

.comparison-update-badge {
  display: inline-block;
  margin-bottom: 15px;
  padding: 5px 10px;
  border: 2px solid #0a0a0a;
  background: #c6ff2e;
  font-family: "Space Mono", monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
}

.comparison-update-dialog h2 {
  margin: 0;
  font-size: clamp(27px, 7vw, 39px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.03em;
}

.comparison-update-dialog p {
  margin: 13px 0 0;
  color: #45423d;
  font-size: 16px;
  line-height: 1.7;
}

.comparison-update-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 24px;
}

.comparison-update-primary,
.comparison-update-dismiss,
.comparison-update-close {
  min-height: 44px;
  border: 2px solid #0a0a0a;
  cursor: pointer;
  font: 800 14px/1.3 "Noto Sans TC", sans-serif;
}

.comparison-update-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  background: #0a0a0a;
  color: #fff;
  text-decoration: none;
  box-shadow: 4px 4px 0 #ff2e7e;
}

.comparison-update-primary:hover { transform: translate(-1px, -1px); }
.comparison-update-dismiss { padding: 10px 14px; background: transparent; color: #0a0a0a; }
.comparison-update-close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: grid;
  place-items: center;
  width: 44px;
  padding: 0;
  border-radius: 50%;
  background: #fff;
}

.comparison-update-primary:focus-visible,
.comparison-update-dismiss:focus-visible,
.comparison-update-close:focus-visible {
  outline: 4px solid #005fcc;
  outline-offset: 3px;
}

body.comparison-update-locked { overflow: hidden; }

@media (max-width: 520px) {
  .comparison-update-dialog { padding: 26px 20px 22px; box-shadow: 7px 7px 0 #42d9ff; }
  .comparison-update-actions { grid-template-columns: 1fr; }
  .comparison-update-dismiss { order: 2; }
}

@media (prefers-reduced-motion: reduce) {
  .comparison-update-overlay,
  .comparison-update-dialog,
  .comparison-update-primary { transition: none; }
}