/**
 * MiUtils Tool Widgets & Common Layouts
 * Version: 1.0.0
 * Specialized layouts, split panes, workbenches, metric cards, keypads, canvas wrappers
 */

/* ==========================================================================
   1. Workbench & Split Layouts
   ========================================================================== */
.mu-workbench {
  background-color: var(--mu-bg-surface);
  border: 1px solid var(--mu-border-subtle);
  border-radius: var(--mu-radius-lg);
  box-shadow: var(--mu-shadow-xs);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin-bottom: var(--mu-space-6);
}

.mu-workbench-header {
  padding: var(--mu-space-4) var(--mu-space-5);
  border-bottom: 1px solid var(--mu-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--mu-bg-surface);
  gap: var(--mu-space-3);
  flex-wrap: wrap;
}

.mu-workbench-title {
  margin: 0;
  font-size: var(--mu-text-base);
  font-weight: var(--mu-font-bold);
  color: var(--mu-text-primary);
  display: flex;
  align-items: center;
  gap: var(--mu-space-2);
}

.mu-workbench-body {
  padding: var(--mu-space-6);
  flex: 1;
}

.mu-workbench-footer {
  padding: var(--mu-space-4) var(--mu-space-5);
  border-top: 1px solid var(--mu-border-subtle);
  background-color: var(--mu-bg-surface-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--mu-space-3);
  flex-wrap: wrap;
}

/* Two-column responsive split layout */
.mu-split-layout {
  display: flex;
  gap: var(--mu-space-6);
  width: 100%;
}
.mu-split-sidebar {
  width: 380px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: var(--mu-space-4);
}
.mu-split-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--mu-space-4);
}

/* ==========================================================================
   2. Metric Grids & Statistic Cards
   ========================================================================== */
.mu-metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--mu-space-3);
  margin-bottom: var(--mu-space-4);
}

.mu-metric-card {
  background-color: var(--mu-bg-surface-secondary);
  border: 1px solid var(--mu-border-subtle);
  border-radius: var(--mu-radius-md);
  padding: var(--mu-space-3) var(--mu-space-4);
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: all var(--mu-transition-fast);
}
.mu-metric-card:hover {
  border-color: var(--mu-border-medium);
}

.mu-metric-val {
  font-size: var(--mu-text-xl);
  font-weight: var(--mu-font-bold);
  color: var(--mu-text-primary);
  font-family: var(--mu-font-mono);
  line-height: 1.2;
}

.mu-metric-lbl {
  font-size: var(--mu-text-xs);
  color: var(--mu-text-secondary);
  font-weight: var(--mu-font-medium);
  margin-top: 2px;
}

/* ==========================================================================
   3. Segmented Controls & Tabs
   ========================================================================== */
.mu-segmented-control {
  display: inline-flex;
  background-color: var(--mu-bg-surface-secondary);
  padding: 3px;
  border-radius: var(--mu-radius-sm);
  border: 1px solid var(--mu-border-subtle);
  gap: 2px;
}

.mu-seg-btn {
  padding: 5px 12px;
  font-size: var(--mu-text-xs);
  font-weight: var(--mu-font-semibold);
  color: var(--mu-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--mu-radius-xs);
  cursor: pointer;
  transition: all var(--mu-transition-fast);
  white-space: nowrap;
}
.mu-seg-btn:hover {
  color: var(--mu-text-primary);
}
.mu-seg-btn.active {
  background-color: var(--mu-bg-surface);
  color: var(--mu-primary);
  box-shadow: var(--mu-shadow-xs);
}

/* ==========================================================================
   4. Canvas & Interactive Drawers
   ========================================================================== */
.mu-canvas-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--mu-bg-surface-secondary);
  border: 1px solid var(--mu-border-medium);
  border-radius: var(--mu-radius-md);
  overflow: hidden;
  position: relative;
}

.mu-canvas-wrapper {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none; /* Prevents mobile scroll while drawing */
}

canvas.mu-canvas {
  display: block;
  max-width: 100%;
  border-radius: var(--mu-radius-sm);
}

/* ==========================================================================
   5. File Dropzone & Drag-and-Drop Area
   ========================================================================== */
.mu-dropzone {
  border: 2px dashed var(--mu-border-medium);
  border-radius: var(--mu-radius-lg);
  padding: 36px 20px;
  text-align: center;
  background-color: var(--mu-bg-surface);
  cursor: pointer;
  transition: all var(--mu-transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.mu-dropzone:hover,
.mu-dropzone.mu-dropzone-active {
  border-color: var(--mu-primary);
  background-color: var(--mu-primary-subtle);
}

.mu-dropzone-icon {
  font-size: 36px;
  color: var(--mu-primary);
  margin-bottom: var(--mu-space-3);
}

.mu-dropzone-text {
  font-size: var(--mu-text-sm);
  color: var(--mu-text-primary);
  font-weight: var(--mu-font-semibold);
  margin-bottom: var(--mu-space-1);
}

.mu-dropzone-hint {
  font-size: var(--mu-text-xs);
  color: var(--mu-text-muted);
}

/* ==========================================================================
   6. Slider Controls with Live Value Bubbles
   ========================================================================== */
.mu-slider-group {
  display: flex;
  flex-direction: column;
  gap: var(--mu-space-1);
}

.mu-slider-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mu-slider-val {
  font-family: var(--mu-font-mono);
  font-size: var(--mu-text-xs);
  font-weight: var(--mu-font-bold);
  color: var(--mu-primary);
  background-color: var(--mu-primary-subtle);
  padding: 1px 6px;
  border-radius: var(--mu-radius-xs);
}

.mu-slider {
  width: 100%;
  height: 6px;
  border-radius: var(--mu-radius-pill);
  background: var(--mu-border-medium);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}
.mu-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--mu-primary);
  cursor: pointer;
  box-shadow: var(--mu-shadow-xs);
  transition: transform var(--mu-transition-fast);
}
.mu-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

/* ==========================================================================
   7. Calculator Displays & Virtual Keypads
   ========================================================================== */
.mu-calc-display {
  background-color: var(--mu-bg-surface-secondary);
  border: 1px solid var(--mu-border-medium);
  border-radius: var(--mu-radius-md);
  padding: var(--mu-space-4);
  text-align: right;
  margin-bottom: var(--mu-space-4);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 84px;
}

.mu-calc-formula {
  font-family: var(--mu-font-mono);
  font-size: var(--mu-text-sm);
  color: var(--mu-text-secondary);
  min-height: 20px;
  word-break: break-all;
}

.mu-calc-result {
  font-family: var(--mu-font-mono);
  font-size: var(--mu-text-3xl);
  font-weight: var(--mu-font-bold);
  color: var(--mu-text-primary);
  line-height: 1.1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mu-calc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--mu-space-2);
}

.mu-calc-grid-scientific {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--mu-space-2);
}

.mu-calc-btn {
  height: 48px;
  font-family: var(--mu-font-mono);
  font-size: var(--mu-text-base);
  font-weight: var(--mu-font-semibold);
  border-radius: var(--mu-radius-sm);
  border: 1px solid var(--mu-border-subtle);
  background-color: var(--mu-bg-surface);
  color: var(--mu-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--mu-transition-fast);
}
.mu-calc-btn:hover {
  background-color: var(--mu-bg-surface-hover);
}
.mu-calc-btn:active {
  transform: translateY(1px);
}
.mu-calc-btn-op {
  background-color: var(--mu-bg-surface-secondary);
  color: var(--mu-primary);
  font-weight: var(--mu-font-bold);
}
.mu-calc-btn-equals {
  background-color: var(--mu-primary);
  color: var(--mu-text-on-primary);
  border-color: var(--mu-primary);
}
.mu-calc-btn-equals:hover {
  background-color: var(--mu-primary-hover);
}

/* ==========================================================================
   8. Stopwatch / Timer Digital Displays & Lap Tables
   ========================================================================== */
.mu-time-display {
  font-family: var(--mu-font-mono);
  font-size: 3.5rem;
  font-weight: var(--mu-font-bold);
  color: var(--mu-text-primary);
  text-align: center;
  letter-spacing: -0.02em;
  padding: var(--mu-space-4) 0;
  line-height: 1;
}

.mu-laps-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--mu-text-sm);
  font-family: var(--mu-font-mono);
}
.mu-laps-table th {
  text-align: left;
  padding: 8px 12px;
  font-size: var(--mu-text-xs);
  color: var(--mu-text-secondary);
  border-bottom: 2px solid var(--mu-border-subtle);
}
.mu-laps-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--mu-border-subtle);
}
.mu-laps-table tr.fastest td {
  color: var(--mu-success);
  font-weight: var(--mu-font-bold);
  background-color: var(--mu-success-subtle);
}
.mu-laps-table tr.slowest td {
  color: var(--mu-danger);
  font-weight: var(--mu-font-bold);
  background-color: var(--mu-danger-subtle);
}

/* ==========================================================================
   9. Password Strength Meters
   ========================================================================== */
.mu-strength-meter {
  display: flex;
  height: 6px;
  gap: 4px;
  margin-top: 6px;
  margin-bottom: 4px;
}
.mu-strength-bar {
  flex: 1;
  height: 100%;
  background-color: var(--mu-border-medium);
  border-radius: var(--mu-radius-pill);
  transition: background-color var(--mu-transition-fast);
}
.mu-strength-bar.weak { background-color: var(--mu-danger); }
.mu-strength-bar.fair { background-color: var(--mu-warning); }
.mu-strength-bar.strong { background-color: var(--mu-success); }
.mu-strength-bar.very-strong { background-color: #059669; }

/* ==========================================================================
   10. History Reel & Logs
   ========================================================================== */
.mu-history-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--mu-space-2);
  max-height: 320px;
  overflow-y: auto;
}

.mu-history-item {
  padding: 10px 14px;
  background-color: var(--mu-bg-surface-secondary);
  border: 1px solid var(--mu-border-subtle);
  border-radius: var(--mu-radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--mu-space-2);
  font-size: var(--mu-text-sm);
}
.mu-history-item:hover {
  border-color: var(--mu-border-medium);
}

/* ==========================================================================
   11. Responsive Breakpoints
   ========================================================================== */
@media (max-width: 900px) {
  .mu-split-layout {
    flex-direction: column;
  }
  .mu-split-sidebar {
    width: 100%;
  }
  .mu-time-display {
    font-size: 2.5rem;
  }
}

@media (max-width: 480px) {
  .mu-time-display {
    font-size: 2rem;
  }
  .mu-calc-btn {
    height: 42px;
    font-size: var(--mu-text-sm);
  }
  .mu-metric-grid {
    grid-template-columns: 1fr 1fr;
  }
}