.update-overlay {
  position: fixed;
  z-index: 170;
  inset: 0;
  background: var(--overlay-backdrop);
  backdrop-filter: blur(5px);
  display: grid;
  place-items: center;
  padding: 20px;
}
.update-modal {
  width: min(390px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.update-modal h2 {
  margin: 0 0 12px;
  font-size: clamp(1.25rem, 5vw, 1.5rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.update-modal p {
  margin: 0;
  line-height: 1.5;
}
.update-copy {
  color: var(--muted);
}
.update-modal .update-note {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 650;
}
.update-progress-copy {
  color: var(--muted);
  text-align: center;
}
.update-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 18px;
}
.update-actions button {
  min-height: 48px;
}
.update-spinner {
  width: 42px;
  height: 42px;
  border: 4px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: bp-spin 0.8s linear infinite;
  margin: 0 auto 16px;
}
@keyframes bp-spin {
  to { transform: rotate(360deg); }
}