/* ==========================================================================
   Tool Workspace Stylesheet (tools.css)
   Interactive UI elements for Image, PDF, Student and Utility Tools
   ========================================================================== */

/* Tool Page Layout Container */
.tool-workspace {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 32px;
  margin-bottom: 40px;
}

.tool-header-area {
  margin-bottom: 28px;
  text-align: center;
}

.tool-page-title {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 850;
  letter-spacing: -0.03em;
  color: var(--text-main);
  margin-bottom: 8px;
}

.tool-page-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* File Upload & Drop Zone */
.dropzone-container {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  background: var(--bg-surface-alt);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.dropzone-container:hover, .dropzone-container.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.dropzone-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 16px;
  transition: transform 0.2s ease;
}

.dropzone-container:hover .dropzone-icon {
  transform: translateY(-4px);
}

.dropzone-title {
  font-size: 1.25rem;
  font-weight: 750;
  color: var(--text-main);
  margin-bottom: 6px;
}

.dropzone-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.dropzone-meta {
  display: inline-flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.dropzone-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

/* Image Processing Workbench (Homepage & Image Tools) */
.image-editor-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  margin-top: 28px;
}

.preview-pane {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  position: relative;
  overflow: hidden;
}

.preview-canvas-wrapper {
  max-width: 100%;
  max-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
}

.preview-canvas-wrapper img, .preview-canvas-wrapper canvas {
  max-width: 100%;
  max-height: 440px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.file-stats-badge {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  margin-top: 16px;
  width: 100%;
  justify-content: space-around;
  font-size: 0.85rem;
}

.file-stats-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.file-stats-item strong {
  font-weight: 750;
  color: var(--text-main);
}

.file-stats-item span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Controls Pane */
.controls-pane {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.control-group {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
}

.control-title {
  font-size: 0.95rem;
  font-weight: 750;
  color: var(--text-main);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 650;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-input, .form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-main);
  font-size: 0.92rem;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.range-slider-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.range-slider {
  flex-grow: 1;
  accent-color: var(--primary);
  height: 6px;
  cursor: pointer;
}

.range-value {
  font-weight: 750;
  font-size: 0.95rem;
  min-width: 44px;
  text-align: right;
  color: var(--primary);
}

/* Checkbox Toggle */
.toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
}

.toggle-label input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Passport Photo Print Layout Options */
.passport-preset-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.preset-chip {
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-surface-alt);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.preset-chip:hover, .preset-chip.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.color-palette-options {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.color-option {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--border);
  cursor: pointer;
  position: relative;
  transition: transform 0.2s ease;
}

.color-option.active {
  transform: scale(1.15);
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary);
}

/* PDF Files Management Area */
.pdf-files-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.pdf-file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  gap: 12px;
}

.pdf-file-info {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-grow: 1;
  overflow: hidden;
}

.pdf-file-icon {
  font-size: 1.5rem;
  color: #ef4444;
}

.pdf-file-name {
  font-size: 0.92rem;
  font-weight: 650;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pdf-file-size {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pdf-file-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-surface-alt);
  color: var(--text-muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.icon-btn:hover {
  background: var(--danger-light);
  color: var(--danger);
  border-color: var(--danger);
}

/* PDF Page Thumbnails Grid */
.pdf-thumbnails-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
  margin-top: 20px;
  max-height: 480px;
  overflow-y: auto;
  padding: 10px;
  background: var(--bg-surface-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.pdf-page-thumb {
  position: relative;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px;
  background: #ffffff;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.pdf-page-thumb.selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.25);
}

.pdf-page-thumb canvas {
  width: 100%;
  height: auto;
  display: block;
}

.pdf-page-number {
  margin-top: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #0f172a;
}

/* Student & Calculator Cards */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.calc-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.calc-result-box {
  background: linear-gradient(135deg, #07142e, #0b2043);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.calc-result-number {
  font-size: 3.2rem;
  font-weight: 900;
  color: #38bdf8;
  line-height: 1.1;
  margin: 12px 0 6px;
}

.calc-result-label {
  font-size: 0.95rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.calc-result-breakdown {
  margin-top: 20px;
  width: 100%;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
}

.calc-breakdown-row {
  display: flex;
  justify-content: space-between;
  color: #cbd5e1;
}

.calc-breakdown-row strong {
  color: #ffffff;
}

/* Exam Subjects Table */
.subjects-table-wrap {
  margin-top: 18px;
  overflow-x: auto;
}

.subjects-table {
  width: 100%;
  border-collapse: collapse;
}

.subjects-table th, .subjects-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 0.9rem;
}

.subjects-table th {
  background: var(--bg-surface-alt);
  font-weight: 700;
  color: var(--text-muted);
}

/* Typing Speed Test Arena */
.typing-arena {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.typing-stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.typing-stat-item {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
}

.typing-stat-val {
  font-size: 2rem;
  font-weight: 850;
  color: var(--primary);
  line-height: 1;
}

.typing-stat-lbl {
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-muted);
  margin-top: 4px;
}

.typing-text-display {
  font-size: 1.25rem;
  line-height: 2;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border);
  margin-bottom: 20px;
  user-select: none;
  max-height: 200px;
  overflow-y: auto;
  font-family: monospace, var(--font-sans);
}

.typing-text-display span.correct {
  color: var(--success);
  background: rgba(22, 163, 74, 0.12);
}

.typing-text-display span.incorrect {
  color: var(--danger);
  background: rgba(220, 38, 38, 0.2);
  text-decoration: underline;
}

.typing-text-display span.current {
  background: var(--primary);
  color: #ffffff;
  border-radius: 2px;
}

.typing-input-area {
  width: 100%;
  padding: 16px;
  font-size: 1.15rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--border);
  background: var(--bg-card);
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
  font-family: monospace, var(--font-sans);
}

.typing-input-area:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
}

/* QR Code Display Card */
.qr-preview-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin-bottom: 20px;
  min-height: 260px;
}

.qr-preview-box img, .qr-preview-box canvas {
  margin: 0 auto;
}

/* Search Results Cards (IFSC & PIN) */
.finder-results-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 24px;
}

.finder-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 16px;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th {
  width: 30%;
  padding: 10px 12px;
  text-align: left;
  color: var(--text-muted);
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border);
}

.info-table td {
  padding: 10px 12px;
  font-size: 0.92rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

/* Spinner Loading */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(2, 132, 199, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 20px auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Notice / Reminder Card */
.notice-box {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-top: 24px;
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
}

[data-theme="dark"] .notice-box {
  color: #bae6fd;
}

.notice-box.notice-warning {
  border-left-color: var(--warning);
  background: #fef9c3;
  color: #854d0e;
}

[data-theme="dark"] .notice-box.notice-warning {
  background: rgba(234, 179, 8, 0.15);
  color: #fde047;
}