/* ======================================================================
   CSS for Overlay PDF Tool
   Same design spirit as other PDF tools (blue accent, clean, modern)
   ====================================================================== */

.tool-wrapper[data-tool="overlay-pdf"] {
  font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
  color: #1e293b;
}


/* -------- Error Message -------- */
.tool-wrapper[data-tool="overlay-pdf"] .error-message {
  display: none;
  background: #fef2f2;
  border-left: 4px solid #dc2626;
  padding: 1rem 1.25rem;
  border-radius: 0.5rem;
  margin: 1rem 0;
  color: #991b1b;
  font-size: 0.95rem;
  font-weight: 500;
}

.tool-wrapper[data-tool="overlay-pdf"] .error-message.show {
  display: block;
}

/* -------- Editor Layout (2 columns) -------- */
.tool-wrapper[data-tool="overlay-pdf"] .editor-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 1.5rem 0;
}

/* -------- Preview Column -------- */
.tool-wrapper[data-tool="overlay-pdf"] .preview-box {
  background: #ffffff;
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid #e9edf2;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: opacity 0.2s;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-box.hidden {
  display: none;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-toolbar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-toolbar button {
  background: #f1f5f9;
  border: 1px solid #d1d9e6;
  border-radius: 50%;
  width: 34px;
  height: 34px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  color: #1e293b;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-toolbar button:hover:not(:disabled) {
  background: #e2e8f0;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-toolbar button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-toolbar input {
  width: 48px;
  padding: 0.2rem 0.2rem;
  text-align: center;
  border: 1px solid #d1d9e6;
  border-radius: 0.4rem;
  font-weight: 600;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-toolbar input:focus {
  border-color: #0067b8;
  box-shadow: 0 0 0 3px rgba(0, 103, 184, 0.12);
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-toolbar span {
  font-weight: 500;
  color: #475569;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-canvas-wrap {
  width: 100%;
  background: #f8fafc;
  border-radius: 0.5rem;
  border: 1px solid #e9edf2;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  max-height: 420px;
  padding: 6px;
  overflow: auto;
}

.tool-wrapper[data-tool="overlay-pdf"] .preview-canvas-wrap canvas {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  display: block;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  background: #ffffff;
}

/* -------- Settings Panel -------- */
.tool-wrapper[data-tool="overlay-pdf"] .tool-settings {
  background: #ffffff;
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid #e9edf2;
  padding: 1.5rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.tool-wrapper[data-tool="overlay-pdf"] .tool-settings.hidden {
  display: none;
}

/* -------- File Info Box -------- */
.tool-wrapper[data-tool="overlay-pdf"] .file-box {
  background: #f8fafc;
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  border: 1px solid #e9edf2;
}

.tool-wrapper[data-tool="overlay-pdf"] .file-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
}

.tool-wrapper[data-tool="overlay-pdf"] .file-name {
  font-weight: 600;
  color: #0f172a;
  word-break: break-all;
}

.tool-wrapper[data-tool="overlay-pdf"] .file-pages,
.tool-wrapper[data-tool="overlay-pdf"] .file-size {
  color: #475569;
  font-size: 0.9rem;
  background: #eef2f6;
  padding: 0.2rem 0.8rem;
  border-radius: 1rem;
}

/* -------- Options Grid -------- */
.tool-wrapper[data-tool="overlay-pdf"] .options-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tool-wrapper[data-tool="overlay-pdf"] .option-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tool-wrapper[data-tool="overlay-pdf"] .option-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: #1e293b;
}

/* -------- Color Picker -------- */
.tool-wrapper[data-tool="overlay-pdf"] .color-picker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.tool-wrapper[data-tool="overlay-pdf"] .color-preview {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid #e9edf2;
  flex-shrink: 0;
}

.tool-wrapper[data-tool="overlay-pdf"] .color-picker input[type="color"] {
  width: 44px;
  height: 44px;
  border: 1px solid #d1d9e6;
  border-radius: 8px;
  padding: 2px;
  cursor: pointer;
  background: #ffffff;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.tool-wrapper[data-tool="overlay-pdf"] .color-picker input[type="color"]:focus {
  border-color: #0067b8;
  box-shadow: 0 0 0 3px rgba(0, 103, 184, 0.12);
}

.tool-wrapper[data-tool="overlay-pdf"] .color-picker span {
  font-weight: 500;
  font-size: 0.9rem;
  color: #1e293b;
}

/* -------- Range Slider -------- */
.tool-wrapper[data-tool="overlay-pdf"] .range-slider {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.tool-wrapper[data-tool="overlay-pdf"] .range-slider input[type="range"] {
  flex: 1;
  accent-color: #0067b8;
  cursor: pointer;
  margin: 0.2rem 0;
}

.tool-wrapper[data-tool="overlay-pdf"] .range-value {
  font-weight: 600;
  color: #0067b8;
  background: #f0f7ff;
  padding: 0.1rem 0.8rem;
  border-radius: 1rem;
  font-size: 0.85rem;
  min-width: 3.5rem;
  text-align: center;
}

/* -------- Select & Input Fields -------- */
.tool-wrapper[data-tool="overlay-pdf"] .option-group select,
.tool-wrapper[data-tool="overlay-pdf"] .option-group input[type="text"] {
  padding: 0.6rem 0.75rem;
  border: 1px solid #d1d9e6;
  border-radius: 0.5rem;
  background: #ffffff;
  font-size: 0.9rem;
  color: #1e293b;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

.tool-wrapper[data-tool="overlay-pdf"] .option-group select:focus,
.tool-wrapper[data-tool="overlay-pdf"] .option-group input[type="text"]:focus {
  border-color: #0067b8;
  box-shadow: 0 0 0 3px rgba(0, 103, 184, 0.12);
}

.tool-wrapper[data-tool="overlay-pdf"] .option-group input[type="text"] {
  margin-top: 0.3rem;
}

.tool-wrapper[data-tool="overlay-pdf"] .option-group input[type="text"]::placeholder {
  color: #94a3b8;
}

/* -------- Action Buttons -------- */
.tool-wrapper[data-tool="overlay-pdf"] .action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

.tool-wrapper[data-tool="overlay-pdf"] .btn {
  padding: 0.6rem 1.8rem;
  border-radius: 2rem;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.tool-wrapper[data-tool="overlay-pdf"] .btn:active {
  transform: scale(0.97);
}

.tool-wrapper[data-tool="overlay-pdf"] .btn-primary {
  background: #0067b8;
  color: #ffffff;
}

.tool-wrapper[data-tool="overlay-pdf"] .btn-primary:hover:not(:disabled) {
  background: #005499;
  box-shadow: 0 4px 12px rgba(0, 103, 184, 0.25);
}

.tool-wrapper[data-tool="overlay-pdf"] .btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.tool-wrapper[data-tool="overlay-pdf"] .btn-secondary {
  background: #f1f5f9;
  color: #1e293b;
  border: 1px solid #d1d9e6;
}

.tool-wrapper[data-tool="overlay-pdf"] .btn-secondary:hover {
  background: #e2e8f0;
}

/* -------- Toast Notification -------- */
.tool-wrapper[data-tool="overlay-pdf"] .toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #0f172a;
  color: #ffffff;
  padding: 0.8rem 1.8rem;
  border-radius: 2rem;
  font-weight: 500;
  font-size: 0.9rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  z-index: 999;
}

.tool-wrapper[data-tool="overlay-pdf"] .toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* -------- Responsive Design -------- */
@media (max-width: 900px) {
  .tool-wrapper[data-tool="overlay-pdf"] .editor-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .preview-canvas-wrap {
    max-height: 350px;
  }
}

@media (max-width: 600px) {
  .tool-wrapper[data-tool="overlay-pdf"] {
    padding: 0 0.5rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .upload-area {
    padding: 1.5rem 0.75rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .upload-text {
    font-size: 1.1rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .upload-hint {
    font-size: 0.85rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .upload-btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.85rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .tool-settings {
    padding: 1rem 1rem 1.5rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .action-buttons {
    flex-direction: column;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .action-buttons .btn {
    justify-content: center;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .preview-box {
    padding: 0.75rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .preview-canvas-wrap {
    max-height: 280px;
    min-height: 140px;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .file-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .color-picker {
    gap: 0.5rem;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .range-slider {
    flex-wrap: wrap;
  }

  .tool-wrapper[data-tool="overlay-pdf"] .toast {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
    text-align: center;
    border-radius: 1.5rem;
  }
}