.workflow-tabs { display: flex; gap: 6px; padding: 5px; width: fit-content; max-width: 100%; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.workflow-tabs button { min-height: 38px; padding: 0 16px; background: transparent; color: var(--muted); box-shadow: none; font-size: 14px; }
.workflow-tabs button.is-active { background: var(--accent-soft); color: var(--accent-dark); }
.workflow-tabs button:hover:not(:disabled) { background: #edf3ff; color: var(--accent-dark); }
.footer-actions { display: flex; gap: 8px; }
button.secondary { border: 1px solid var(--line); color: #40516c; background: #fff; box-shadow: none; }
button.secondary:hover:not(:disabled) { background: #f2f5fa; }
.cover-dialog { width: min(1320px, calc(100vw - 24px)); }
.cover-dialog [hidden] { display: none !important; }
.cover-toolbar { display: flex; flex: 0 0 auto; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 20px; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.cover-tools { display: flex; gap: 6px; flex-wrap: wrap; }
.cover-tools button, .cover-record-navigation button { min-height: 30px; padding: 0 10px; border: 1px solid var(--line); color: #40516c; background: #fff; box-shadow: none; font-size: 12px; white-space: nowrap; }
.cover-tools button:hover:not(:disabled), .cover-tools button.is-active, .cover-record-navigation button:hover:not(:disabled) { color: var(--accent); background: var(--accent-soft); }
.cover-tools button:disabled, .cover-record-navigation button:disabled { color: #9aa8ba; background: #f5f7fa; }
.cover-body { display: grid; grid-template-columns: 290px minmax(0, 1fr); flex: 1 1 auto; min-height: 0; overflow: hidden; }
.cover-sidebar { padding: 14px 18px 24px; overflow: auto; border-right: 1px solid var(--line); background: #fff; }
.cover-sidebar label { font-size: 13px; font-weight: 600; }
.cover-sidebar input[type="text"], .cover-sidebar select { height: 36px; margin: 5px 0 12px; font-size: 13px; padding: 0 9px; }
.cover-sidebar select { text-overflow: ellipsis; }
.cover-record-navigation { display: flex; gap: 4px; justify-content: space-between; align-items: center; margin: 0 0 12px; font-size: 12px; color: var(--muted); }
.cover-source { margin: 0 0 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line); font-size: 12px; color: var(--muted); line-height: 1.5; overflow-wrap: anywhere; }
.cover-specification { margin: 0 0 10px; white-space: pre-wrap; overflow-wrap: anywhere; color: #58657a; font-size: 12px; line-height: 1.6; }
.cover-review-label { display: flex; gap: 4px; align-items: flex-start; margin: 0 0 12px; color: #8b5700; font-size: 12px !important; line-height: 1.5; }
.cover-issues { margin: 0 0 12px; padding-left: 17px; color: var(--error); font-size: 12px; line-height: 1.6; }
.cover-issues:empty { display: none; }
.cover-sidebar .hint { margin: 0; font-size: 11px; }
.cover-canvas { position: relative; min-width: 0; overflow: auto; background: #e9edf3; padding: 18px; text-align: center; }
.cover-canvas img { display: block; width: min(100%, 794px); height: auto; margin: 0 auto; box-shadow: 0 4px 16px #1c2b4726; background: #fff; }
.cover-canvas p { margin: 0 auto 12px; color: #53617a; font-size: 13px; }
.cover-canvas p:empty { display: none; }
.cover-dialog .conversion-dialog-footer { min-height: 58px; }
.cover-dialog.is-exporting .cover-body { pointer-events: none; opacity: .75; }
.cover-sidebar input[aria-invalid="true"] { border-color: var(--error); background: #fff9f8; }
.export-progress-dialog { width: min(420px, calc(100vw - 32px)); padding: 26px; margin: auto; border: 1px solid var(--line); border-radius: 16px; color: var(--ink); background: #fff; box-shadow: 0 24px 70px #172c5440; }
.export-progress-dialog::backdrop { background: #14203680; }
.export-progress-dialog [hidden] { display: none !important; }
.export-progress-heading { display: flex; align-items: center; gap: 10px; }
.export-progress-heading h2 { font-size: 17px; }
.export-progress-dialog p { margin: 12px 0; font-size: 13px; overflow-wrap: anywhere; }
.export-progress-dialog p:empty { display: none; }
.export-progress-track { display: flex; align-items: center; gap: 12px; margin: 20px 0 14px; }
.export-progress-track progress { flex: 1; min-width: 0; height: 10px; border: 0; border-radius: 8px; overflow: hidden; accent-color: var(--accent); }
.export-progress-track progress::-webkit-progress-bar { background: #e9eef7; border-radius: 8px; }
.export-progress-track progress::-webkit-progress-value { background: var(--accent); border-radius: 8px; transition: width .2s ease; }
.export-progress-track progress::-moz-progress-bar { background: var(--accent); border-radius: 8px; }
.export-progress-track progress:indeterminate { background: linear-gradient(90deg, #e9eef7 25%, #92b0ee 50%, #e9eef7 75%); background-size: 200% 100%; animation: export-loading 1.4s linear infinite; }
.export-progress-track progress:indeterminate::-webkit-progress-bar { background: transparent; }
.export-progress-track span { font-size: 13px; font-variant-numeric: tabular-nums; color: var(--accent); }
.export-progress-hint { color: var(--muted); }
.export-progress-dialog button { display: block; margin: 20px 0 0 auto; min-height: 36px; font-size: 13px; }
.export-progress-dialog.has-error h2 { color: var(--error); }
.export-spinner { flex: 0 0 auto; width: 20px; height: 20px; border: 2px solid #dce6f9; border-top-color: var(--accent); border-radius: 50%; animation: export-spin .8s linear infinite; }
@keyframes export-spin { to { transform: rotate(360deg); } }
@keyframes export-loading { to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) { .export-spinner, .export-progress-track progress:indeterminate { animation: none; } }
@media (max-width: 760px) {
  .workflow-tabs { width: 100%; }
  .workflow-tabs button { flex: 1; padding: 0 7px; font-size: 12px; }
  .cover-toolbar { align-items: flex-start; flex-direction: column; padding: 8px 12px; }
  .cover-body { display: block; overflow: auto; }
  .cover-sidebar { overflow: visible; border-right: 0; border-bottom: 1px solid var(--line); padding: 12px; }
  #coverEditor { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; }
  #coverEditor > * { grid-column: 1 / -1; }
  .cover-canvas { overflow: visible; padding: 12px; }
  .footer-actions { flex-wrap: wrap; justify-content: flex-end; }
  .conversion-dialog-footer .footer-actions button { padding: 0 10px; font-size: 12px; }
}