:root {
     --background: 0 0% 100%;
     --foreground: 222.2 84% 4.9%;
     --card: 0 0% 100%;
     --card-foreground: 222.2 84% 4.9%;
     --popover: 0 0% 100%;
     --popover-foreground: 222.2 84% 4.9%;
     --primary: 221.2 83.2% 53.3%;
     --primary-foreground: 210 40% 98%;
     --secondary: 210 40% 96.1%;
     --secondary-foreground: 222.2 47.4% 11.2%;
     --muted: 210 40% 96.1%;
     --muted-foreground: 215.4 16.3% 46.9%;
     --accent: 210 40% 96.1%;
     --accent-foreground: 222.2 47.4% 11.2%;
     --destructive: 0 84.2% 60.2%;
     --destructive-foreground: 210 40% 98%;
     --border: 214.3 31.8% 91.4%;
     --input: 214.3 31.8% 91.4%;
     --ring: 221.2 83.2% 53.3%;
     --radius: 0.5rem;
 }


 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
 }

 body {
     font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
         Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans",
         "Helvetica Neue", sans-serif;
     background-color: hsl(var(--background));
     color: hsl(var(--foreground));
     line-height: 1.5;
     min-height: 100vh;
     transition: background-color 0.2s;
     overflow-y: scroll;
 }

 .container {
     max-width: 1400px;
     margin: 0 auto;
     padding: 1rem;
 }

 header {
     display: flex;
     justify-content: space-between;
     align-items: center;
     padding: 1rem 0;
     border-bottom: 1px solid hsl(var(--border));
     margin-bottom: 2rem;
 }

 h1 {
     font-size: 1.5rem;
     font-weight: 600;
 }

 .grid {
     display: grid;
     gap: 1.5rem;
 }

 .grid-cols-2 {
     grid-template-columns: repeat(2, minmax(0, 1fr));
 }

 .mb-2 {
    margin-bottom: 2rem;
 }

 .card {
     background-color: hsl(var(--card));
     border: 1px solid hsl(var(--border));
     border-radius: var(--radius);
     padding: 1.5rem;
     box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
 }

 .card-header {
     margin-bottom: 1rem;
 }

 .card-title {
     font-size: 1.25rem;
     font-weight: 600;
     margin-bottom: 0.5rem;
 }

 .card-description {
     color: hsl(var(--muted-foreground));
     font-size: 0.875rem;
 }

 .preview-area {
     position: relative;
     width: 100%;
     height: 300px;
     border: 2px dashed hsl(var(--border));
     border-radius: var(--radius);
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     overflow: hidden;
     margin-bottom: 1rem;
 }

 .text-output-area {
     width: 100%;
     height: 500px;
     border: 2px dashed hsl(var(--border));
     border-radius: var(--radius);
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     overflow: scroll;
 }

 .preview-area.has-image {
     border: none;
 }

 .preview-area img {
     max-width: 100%;
     max-height: 100%;
     object-fit: contain;
 }

 .preview-placeholder {
     text-align: center;
     color: hsl(var(--muted-foreground));
 }

 .preview-placeholder svg {
     width: 3rem;
     height: 3rem;
     margin-bottom: 1rem;
     color: hsl(var(--muted-foreground));
 }

 .btn {
     display: inline-flex;
     align-items: center;
     justify-content: center;
     border-radius: var(--radius);
     font-size: 0.875rem;
     font-weight: 500;
     transition: all 0.2s;
     padding: 0.5rem 1rem;
     cursor: pointer;
     border: 1px solid transparent;
 }

 .btn-primary {
     background-color: hsl(var(--primary));
     color: hsl(var(--primary-foreground));
 }

 .btn-primary:hover {
     background-color: hsl(var(--primary) / 0.9);
 }

 .btn-secondary {
     background-color: hsl(var(--secondary));
     color: hsl(var(--secondary-foreground));
     border-color: hsl(var(--border));
 }

 .btn-secondary:hover {
     background-color: hsl(var(--secondary) / 0.9);
 }

 .btn-group {
     display: flex;
     gap: 0.5rem;
 }

 .tabs {
     display: flex;
     border-bottom: 1px solid hsl(var(--border));
     margin-bottom: 1rem;
 }

 .tab {
     padding: 0.5rem 1rem;
     cursor: pointer;
     border-bottom: 2px solid transparent;
     font-size: 0.875rem;
     font-weight: 500;
     color: hsl(var(--muted-foreground));
 }

 .tab.active {
     color: hsl(var(--primary));
     border-bottom-color: hsl(var(--primary));
 }

 .results {
     margin-top: 1rem;
     border-top: 1px solid hsl(var(--border));
     padding-top: 1rem;
 }

 .result-item {
     padding: 0.5rem;
     border-radius: var(--radius);
     margin-bottom: 0.5rem;
     background-color: hsl(var(--secondary));
 }

 .result-label {
     font-weight: 500;
 }

 .result-confidence {
     color: hsl(var(--muted-foreground));
     font-size: 0.75rem;
 }

 .bounding-box {
     position: absolute;
     border: 2px solid hsl(var(--primary));
     background-color: hsl(var(--primary) / 0.2);
 }

 
 /* Updated tabs styling for collapsible applications */
 .applications-container {
     display: flex;
     flex-direction: column;
     gap: 1rem;
     margin-bottom: 1rem;
 }

 .application-tab {
     border: 1px solid hsl(var(--border));
     border-radius: var(--radius);
     overflow: hidden;
 }

 .application-header {
     display: flex;
     justify-content: space-between;
     align-items: center;
     padding: 0.75rem 1rem;
     background-color: hsl(var(--secondary));
     cursor: pointer;
     user-select: none;
 }

 .application-header:hover {
     background-color: hsl(var(--secondary) / 0.9);
 }

 .application-title {
     font-weight: 500;
     display: flex;
     align-items: center;
     gap: 0.5rem;
 }

 .application-icon {
     width: 1.25rem;
     height: 1.25rem;
 }

 .application-content {
     padding: 0 1rem;
     max-height: 0;
     overflow: hidden;
     transition: max-height 0.1s ease-out;
 }

 .application-tab.active .application-content {
     padding: 1rem;
     max-height: 2000px;
     transition: max-height 0.2s ease-in;
 }

 .application-arrow {
     transition: transform 0.2s ease;
 }

 .application-tab.active .application-arrow {
     transform: rotate(180deg);
 }

 /* -- */

 @media (max-width: 768px) {
     .grid-cols-2 {
         grid-template-columns: 1fr;
     }
 }
 
  
  .input-group {
    margin-bottom: 4px;
  }
  
  .input-group label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--foreground);
  }
  
  .input-group input {
    width: 100%;
    padding: 10px 12px;
    font-size: 0.9375rem;
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
  }
  
  .input-group input::placeholder {
    color: #9ca3af; /* Placeholder text color */
  }
  
  .input-group input:focus {
    outline: none;
    border-color: #6b7280;
    box-shadow: var(--shadow-focus), var(--shadow-sm);
  }
  
  .helper-text {
    margin-top: 6px;
    font-size: 0.75rem;
    color: #6b7280; /* Muted gray for helper text */
  }

  .hidden {
    display: none;
  }

  .confidence-slider input[type="range"] {
    width: 100%;
    appearance: none;
    height: 6px;
    background: hsl(var(--border));
    border-radius: var(--radius);
    outline: none;
    transition: background 0.2s;
}

.confidence-slider input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: hsl(var(--primary));
    cursor: pointer;
    transition: background 0.2s;
}

.confidence-slider input[type="range"]::-webkit-slider-thumb:hover {
    background: hsl(var(--primary) / 0.9);
}

/* Sample images collapsible section */
.sample-images-container {
    border-top: 1px solid hsl(var(--border));
    margin-top: 1rem;
}

.collapsible-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    cursor: pointer;
    font-weight: 500;
    user-select: none;
}

.collapsible-header:hover {
    color: hsl(var(--primary));
}

.transition-transform {
    transition: transform 0.2s ease;
}

.rotate-180 {
    transform: rotate(180deg);
}

.sample-images-content {
    padding-bottom: 0.5rem;
}

.sample-image-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.sample-image {
    cursor: pointer;
    text-align: center;
    transition: transform 0.2s;
}

.sample-image:hover {
    transform: scale(1.05);
}

.sample-image-thumb {
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid hsl(var(--border));
    margin-bottom: 0.25rem;
}

.sample-image-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sample-image p {
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.mt-2 {
    margin-top: 2rem;
}