/* Sign PDF Tool */
.signpdf-tool-card {
  padding: var(--mk-space-xl);
}

.signpdf-upload-area {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  padding: var(--mk-space-2xl);
  background: var(--mk-bg);
  border: 2px dashed var(--mk-border);
  border-radius: var(--mk-radius-md);
  text-align: center;
  transition: all var(--mk-transition-base);
  cursor: pointer;
}

.signpdf-upload-area:hover,
.signpdf-upload-area.dragover {
  border-color: var(--mk-primary);
  background: var(--mk-primary-light);
}

.signpdf-upload-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--mk-space-md);
}

.signpdf-upload-icon {
  font-size: 3rem;
}

.signpdf-upload-title {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
}

.signpdf-upload-subtitle,
.signpdf-help,
.signpdf-hint {
  margin: 0;
  color: var(--mk-text-muted);
}

.signpdf-editor {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-lg);
}

.signpdf-toolbar,
.signpdf-actions,
.signpdf-final-actions,
.signpdf-preview-top,
.signpdf-panel-actions {
  display: flex;
  align-items: center;
  gap: var(--mk-space-md);
}

.signpdf-panel-actions {
  flex-wrap: wrap;
}

.signpdf-history-actions {
  display: inline-flex;
  gap: var(--mk-space-xs);
}

.signpdf-icon-btn {
  width: 42px;
  min-width: 42px;
  padding-left: 0;
  padding-right: 0;
  font-size: 1.15rem;
  font-weight: 800;
}

.signpdf-icon-btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

.signpdf-toolbar,
.signpdf-actions {
  justify-content: space-between;
  flex-wrap: wrap;
}

.signpdf-toolbar-group {
  min-width: 220px;
  flex: 1 1 220px;
}

.signpdf-toolbar-group .mk-form-label {
  margin-bottom: var(--mk-space-xs);
}

.signpdf-page-select {
  max-width: 260px;
}

.signpdf-workspace {
  display: grid;
  grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
  gap: var(--mk-space-lg);
  align-items: start;
}

.signpdf-panel,
.signpdf-preview-shell {
  background: var(--mk-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-lg);
  padding: var(--mk-space-lg);
}

.signpdf-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--mk-space-xs);
  margin-bottom: var(--mk-space-md);
}

.signpdf-tab {
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
  background: var(--mk-card-bg);
  color: var(--mk-text-secondary);
  padding: 0.65rem 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

.signpdf-tab.active {
  border-color: var(--mk-primary);
  background: var(--mk-primary-light);
  color: var(--mk-primary);
}

.signpdf-tab-panel {
  display: none;
}

.signpdf-tab-panel.active {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-md);
}

.signpdf-draw-settings {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-md);
  padding: var(--mk-space-md);
  background: var(--mk-card-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
}

.signpdf-color-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mk-space-xs);
}

.signpdf-color-option {
  width: 34px;
  height: 34px;
  border: 2px solid var(--mk-border);
  border-radius: 999px;
  background: var(--pen-color);
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.82);
  cursor: pointer;
}

.signpdf-color-option.active {
  border-color: var(--mk-primary);
  box-shadow: 0 0 0 3px var(--mk-primary-light), inset 0 0 0 3px rgba(255, 255, 255, 0.82);
}

.signpdf-signature-pad {
  width: 100%;
  height: 150px;
  background: var(--mk-card-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
  touch-action: none;
}

.signpdf-image-upload {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-xs);
  align-items: center;
  justify-content: center;
  min-height: 150px;
  padding: var(--mk-space-lg);
  border: 2px dashed var(--mk-border);
  border-radius: var(--mk-radius-md);
  background: var(--mk-card-bg);
  color: var(--mk-text-main);
  font-weight: 700;
  text-align: center;
  cursor: pointer;
}

.signpdf-image-upload small {
  color: var(--mk-text-muted);
  font-weight: 500;
}

.signpdf-preview-shell {
  min-width: 0;
}

.signpdf-preview-top {
  justify-content: space-between;
  margin-bottom: var(--mk-space-md);
}

.signpdf-file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 700;
}

.signpdf-status {
  color: var(--mk-text-muted);
  font-size: 0.875rem;
  white-space: nowrap;
}

.signpdf-page-stage {
  position: relative;
  width: min(100%, 720px);
  margin: 0 auto;
  background: #dfe5ef;
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
  overflow: auto;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
}

.signpdf-pdf-canvas {
  display: block;
  width: 100%;
  height: auto;
  background: white;
}

.signpdf-applied-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.signpdf-applied-signature {
  position: absolute;
  pointer-events: auto;
  border: 1px solid rgba(34, 197, 94, 0.7);
  border-radius: 6px;
  background: rgba(34, 197, 94, 0.04);
}

.signpdf-applied-signature img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.signpdf-applied-remove {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 2px solid white;
  border-radius: 999px;
  background: #dc2626;
  color: white;
  font-size: 16px;
  line-height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--mk-shadow-sm);
}

.signpdf-overlay {
  position: absolute;
  left: 12%;
  top: 68%;
  width: 28%;
  min-width: 90px;
  border: 2px solid var(--mk-primary);
  border-radius: 8px;
  background: rgba(79, 70, 229, 0.04);
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.signpdf-overlay:active {
  cursor: grabbing;
}

.signpdf-overlay img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
}

.signpdf-resize-handle {
  position: absolute;
  right: -8px;
  bottom: -8px;
  width: 18px;
  height: 18px;
  border: 2px solid white;
  border-radius: 999px;
  background: var(--mk-primary);
  box-shadow: var(--mk-shadow-sm);
}

.signpdf-hint {
  margin-top: var(--mk-space-md);
  text-align: center;
  font-size: 0.875rem;
}

[data-theme="dark"] .signpdf-panel,
[data-theme="dark"] .signpdf-preview-shell,
[data-theme="dark"] .signpdf-upload-area {
  background: rgba(15, 23, 42, 0.35);
}

[data-theme="dark"] .signpdf-page-stage {
  background: #0f172a;
}

@media (max-width: 992px) {
  .signpdf-workspace {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .signpdf-tool-card,
  .signpdf-panel,
  .signpdf-preview-shell {
    padding: var(--mk-space-md);
  }

  .signpdf-toolbar,
  .signpdf-actions,
  .signpdf-final-actions,
  .signpdf-panel-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .signpdf-toolbar-group,
  .signpdf-page-select,
  .signpdf-actions .mk-btn,
  .signpdf-final-actions .mk-btn,
  .signpdf-panel-actions .mk-btn {
    width: 100%;
    max-width: none;
  }
}