/* BauZeit web app shell — mobile-first 390×844 product frame */
.bz-shell {
  --bz-shell-max: 390px;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bz-color-surface-base, #f8f9fa);
}

.bz-shell.hidden {
  display: none;
}

.bz-shell-header {
  background: var(--bz-color-action-primary, #1d4ed8);
  color: var(--bz-color-text-inverse, #fff);
  padding: var(--bz-space-4, 16px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bz-space-3, 12px);
  flex-wrap: wrap;
}

.bz-shell-header h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
}

.bz-shell-meta {
  font-size: 12px;
  opacity: 0.92;
}

.bz-shell-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--bz-space-2, 8px);
  padding: var(--bz-space-3, 12px) var(--bz-space-4, 16px);
  background: var(--bz-color-surface-card, #fff);
  border-bottom: 1px solid var(--bz-color-border-subtle, #e5e7eb);
}

.bz-shell-nav button {
  min-height: 44px;
  padding: 0 var(--bz-space-4, 16px);
  border: 1px solid var(--bz-color-border-subtle, #e5e7eb);
  border-radius: var(--bz-radius, 8px);
  background: var(--bz-color-surface-card, #fff);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.bz-shell-nav button.active {
  background: var(--bz-color-action-primary, #1d4ed8);
  color: var(--bz-color-text-inverse, #fff);
  border-color: var(--bz-color-action-primary, #1d4ed8);
}

.bz-auth-panel {
  max-width: var(--bz-shell-max);
  margin: var(--bz-space-6, 24px) auto;
  padding: 0 var(--bz-space-4, 16px);
  min-height: min(844px, 100dvh);
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.bz-auth-header {
  margin-bottom: var(--bz-space-4, 16px);
}

.bz-auth-header h2 {
  margin: 0 0 var(--bz-space-2, 8px);
  font-size: 22px;
}

.bz-auth-subtitle {
  margin: 0 0 var(--bz-space-3, 12px);
}

.bz-auth-lang {
  margin: 0;
  font-size: 14px;
}

.bz-auth-lang-btn {
  background: none;
  border: none;
  padding: var(--bz-space-2, 8px);
  min-height: 44px;
  min-width: 44px;
  font: inherit;
  color: var(--bz-color-action-primary, #1d4ed8);
  cursor: pointer;
  text-decoration: underline;
  font-weight: 600;
}

.bz-auth-lang-btn.active {
  color: var(--bz-color-text-primary, #111827);
  text-decoration: none;
  cursor: default;
}

.bz-auth-company-hint {
  margin: var(--bz-space-1, 4px) 0 0;
  font-size: 13px;
}

.bz-auth-links {
  text-align: center;
  font-size: 14px;
  margin: 0;
}

.bz-auth-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--bz-space-2, 8px);
}

.bz-auth-privacy {
  text-align: center;
  margin-top: var(--bz-space-4, 16px);
  font-size: 13px;
}

.bz-auth-status-region {
  margin-bottom: var(--bz-space-3, 12px);
}

.bz-auth-status {
  display: flex;
  align-items: flex-start;
  gap: var(--bz-space-3, 12px);
  padding: var(--bz-space-3, 12px);
  border-radius: var(--bz-radius, 8px);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 14px;
}

.bz-auth-status-icon {
  flex-shrink: 0;
  font-size: 20px;
  line-height: 1.3;
}

.bz-auth-status-text {
  flex: 1;
}

.bz-auth-status--success {
  background: #ecfdf5;
  color: #166534;
  border-color: #86efac;
}

.bz-auth-status--error {
  background: #fef2f2;
  color: #991b1b;
  border-color: #fca5a5;
}

.bz-auth-status--offline {
  background: #f5f5f4;
  color: #44403c;
  border-color: #d6d3d1;
}

.hidden {
  display: none !important;
}

.bz-auth-panel.hidden {
  display: none;
}

.bz-app-main {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: var(--bz-space-4, 16px) 0 var(--bz-space-8, 32px);
}

.bz-app-frame {
  width: 100%;
  max-width: var(--bz-shell-max);
  min-height: 844px;
  margin: 0 auto;
  background: var(--bz-color-surface-base, #f8f9fa);
  border: 1px solid var(--bz-color-border-subtle, #e5e7eb);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.bz-app-frame .bz-screen {
  display: flex;
  flex-direction: column;
  gap: var(--bz-space-3, 12px);
  min-height: 844px;
  padding-bottom: var(--bz-space-6, 24px);
}

.bz-ui-btn {
  font-family: inherit;
  cursor: pointer;
}

.bz-ui-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.bz-ui-status {
  display: inline-flex;
  align-items: center;
  gap: var(--bz-space-2, 8px);
  font-weight: 600;
}

#legacy-dev-console.hidden {
  display: none;
}

@media (min-width: 900px) {
  .bz-app-main {
    padding: var(--bz-space-6, 24px);
  }
}