.dark-mode {
        --text-primary: #f3f4f6;
        --text-secondary: #d1d5db;
        --text-light: #9ca3af;
        --bg-primary: #1f2937;
        --bg-secondary: #111827;
        --bg-tertiary: #374151;
        --border-color: #374151;
      }


      main {
        min-height: calc(100vh - 80px);
        padding: 4rem 0;
      }

      .page-header {
        text-align: center;
        margin-bottom: 3rem;
        animation: fadeInUp 0.6s ease;
      }

      .page-title {
        font-family: "Poppins", sans-serif;
        font-size: clamp(2rem, 5vw, 3rem);
        font-weight: 800;
        background: linear-gradient(
          135deg,
          var(--primary-color),
          var(--secondary-color)
        );
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        margin-bottom: 1rem;
      }

      .page-subtitle {
        font-size: 1.2rem;
        color: var(--text-secondary);
        max-width: 700px;
        margin: 0 auto;
      }

      .word-cloud-container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      /* Input Section */
      .input-section {
        background: var(--bg-secondary);
        border: 2px solid var(--border-color);
        border-radius: var(--radius-xl);
        padding: 2rem;
        box-shadow: var(--shadow-md);
        animation: fadeInUp 0.6s ease 0.1s backwards;
      }

      .input-section h3 {
        font-family: "Poppins", sans-serif;
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
        color: var(--text-primary);
        display: flex;
        align-items: center;
        gap: 0.5rem;
      }

      .preset-buttons {
        display: flex;
        gap: 0.75rem;
        margin-bottom: 1.5rem;
        flex-wrap: wrap;
      }

      .preset-btn {
        background: var(--bg-primary);
        border: 2px solid var(--border-color);
        padding: 0.625rem 1.25rem;
        border-radius: var(--radius);
        cursor: pointer;
        font-weight: 600;
        font-size: 0.875rem;
        transition: var(--transition);
        color: var(--text-primary);
      }

      .preset-btn:hover {
        border-color: var(--primary-color);
        background: var(--primary-color);
        color: white;
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
      }

      #textInput {
        width: 100%;
        min-height: 200px;
        padding: 1.25rem;
        border: 2px solid var(--border-color);
        border-radius: var(--radius-lg);
        font-family: "Inter", sans-serif;
        font-size: 1rem;
        line-height: 1.6;
        resize: vertical;
        transition: var(--transition);
        background: var(--bg-primary);
        color: var(--text-primary);
      }

      #textInput:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(70, 187, 229, 0.1);
      }

      /* Controls Section */

      .control-group {
        margin-bottom: 2rem;
      }

      .control-group:last-child {
        margin-bottom: 0;
      }

      .control-group h3 {
        font-family: "Poppins", sans-serif;
        font-size: 1.25rem;
        margin-bottom: 1.25rem;
        color: var(--text-primary);
        display: flex;
        align-items: center;
        gap: 0.5rem;
      }

      .control-item {
        margin-bottom: 1.25rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 0.75rem;
      }

      .control-item label {
        font-weight: 500;
        color: var(--text-secondary);
        display: flex;
        align-items: center;
        gap: 0.5rem;
        cursor: pointer;
      }

      .control-input {
        flex: 1;
        max-width: 300px;
        height: 8px;
        border-radius: 4px;
        background: var(--bg-tertiary);
        outline: none;
        -webkit-appearance: none;
        appearance: none;
      }

      .control-input::-webkit-slider-thumb {
        -webkit-appearance: none;
        appearance: none;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background: var(--primary-color);
        cursor: pointer;
        transition: var(--transition);
      }

      .control-input::-webkit-slider-thumb:hover {
        transform: scale(1.2);
        box-shadow: 0 0 0 8px rgba(70, 187, 229, 0.2);
      }

      .control-input::-moz-range-thumb {
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background: var(--primary-color);
        cursor: pointer;
        border: none;
        transition: var(--transition);
      }

      .control-input::-moz-range-thumb:hover {
        transform: scale(1.2);
        box-shadow: 0 0 0 8px rgba(70, 187, 229, 0.2);
      }

      .control-item span {
        font-weight: 700;
        color: var(--primary-color);
        min-width: 40px;
        text-align: center;
        padding: 0.25rem 0.75rem;
        background: var(--bg-primary);
        border-radius: var(--radius);
      }

      /* Color Grid */
      .color-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(45px, 1fr));
        gap: 0.75rem;
        margin-top: 1rem;
      }

      .color-option {
        width: 100%;
        aspect-ratio: 1;
        border-radius: var(--radius);
        cursor: pointer;
        transition: var(--transition);
        border: 3px solid transparent;
        box-shadow: var(--shadow-sm);
      }

      .color-option:hover {
        transform: scale(1.1);
        box-shadow: var(--shadow-lg);
      }

      .color-option.active {
        border-color: var(--text-primary);
        transform: scale(1.05);
        box-shadow: 0 0 0 4px rgba(70, 187, 229, 0.2);
      }

      /* Word Cloud Canvas */
      .word-cloud-canvas {
        background: var(--bg-secondary);
        border: 2px solid var(--border-color);
        border-radius: var(--radius-xl);
        min-height: 600px;
        height: 600px;
        padding: 2rem;
        position: relative;
        box-shadow: var(--shadow-md);
        display: flex;
        align-items: center;
        justify-content: center;
        animation: fadeInUp 0.6s ease 0.3s backwards;
        overflow: hidden;
      }

      .word-cloud-word {
        position: absolute;
        cursor: pointer;
        font-family: "Poppins", sans-serif;
        font-weight: 700;
        transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
        user-select: none;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        will-change: transform;
      }

      .word-cloud-word:hover {
        transform: scale(1.2);
        text-shadow: 0 6px 12px rgba(0, 0, 0, 0.25);
        z-index: 10;
        filter: brightness(1.1);
      }

      /* Action Buttons */
      .action-buttons {
        display: flex;
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
        animation: fadeInUp 0.6s ease 0.4s backwards;
      }

      .btn {
        padding: 0.875rem 2rem;
        border: none;
        border-radius: var(--radius-lg);
        font-weight: 600;
        font-size: 1rem;
        cursor: pointer;
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        text-decoration: none;
        box-shadow: var(--shadow-md);
        min-width: 140px;
        justify-content: center;
      }

      .btn-primary {
        background: linear-gradient(
          135deg,
          var(--primary-color),
          var(--secondary-color)
        );
        color: white;
      }

      .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
      }

      .btn-secondary {
        background: var(--bg-secondary);
        color: var(--text-primary);
        border: 2px solid var(--border-color);
      }

      .btn-secondary:hover {
        border-color: var(--primary-color);
        transform: translateY(-2px);
      }

      /* Stats Section */


      .stats-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1.5rem;
      }

      .stat-item {
        text-align: center;
        padding: 1.5rem;
        background: var(--bg-primary);
        border-radius: var(--radius-lg);
        border: 2px solid var(--border-color);
        transition: var(--transition);
      }

      .stat-item:hover {
        border-color: var(--primary-color);
        transform: translateY(-3px);
        box-shadow: var(--shadow-md);
      }

      .stat-value {
        font-size: 2rem;
        font-weight: 800;
        color: var(--primary-color);
        font-family: "Poppins", sans-serif;
      }


      /* Word List */
      .word-list {
        background: var(--bg-secondary);
        border: 2px solid var(--border-color);
        border-radius: var(--radius-xl);
        padding: 2rem;
        box-shadow: var(--shadow-md);
        animation: fadeInUp 0.6s ease;
      }

      .word-list h3 {
        font-family: "Poppins", sans-serif;
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
      }

      #wordListContent {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
      }

      .word-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.875rem 1.25rem;
        background: var(--bg-primary);
        border: 2px solid var(--border-color);
        border-radius: var(--radius);
        transition: var(--transition);
      }

      .word-item:hover {
        border-color: var(--primary-color);
        transform: translateX(5px);
      }

      .word-frequency {
        font-weight: 700;
        color: var(--primary-color);
        background: var(--bg-secondary);
        padding: 0.25rem 0.75rem;
        border-radius: var(--radius);
        font-size: 0.875rem;
      }

      /* Animations */

      /* Loading State */
      .loading {
        text-align: center;
        padding: 3rem;
        color: var(--text-secondary);
      }

      .loading i {
        font-size: 3rem;
        color: var(--primary-color);
        animation: spin 1s linear infinite;
      }

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

      /* Mobile Responsive */
      @media (max-width: 768px) {
        body {
          padding-top: 70px;
        }

        main {
          padding: 2rem 0;
        }

        .page-title {
          font-size: 2rem;
        }

        .page-subtitle {
          font-size: 1rem;
        }

        .input-section,
        .controls-section,
        .word-cloud-canvas,
        .stats-section,
        .word-list {
          padding: 1.5rem;
        }

        .preset-buttons {
          gap: 0.5rem;
        }

        .preset-btn {
          font-size: 0.8rem;
          padding: 0.5rem 1rem;
        }

        #textInput {
          min-height: 150px;
          font-size: 0.9rem;
        }

        .color-grid {
          grid-template-columns: repeat(5, 1fr);
          gap: 0.5rem;
        }

        .word-cloud-canvas {
          min-height: 450px;
          height: 450px;
          padding: 1.5rem;
        }

        .action-buttons {
          flex-direction: column;
        }

        .btn {
          width: 100%;
        }

        .stats-grid {
          grid-template-columns: repeat(2, 1fr);
          gap: 1rem;
        }

        #wordListContent {
          grid-template-columns: 1fr;
        }
      }

      @media (max-width: 480px) {
        .page-title {
          font-size: 1.75rem;
        }

        .input-section,
        .controls-section,
        .word-cloud-canvas,
        .stats-section,
        .word-list {
          padding: 1rem;
        }

        .word-cloud-canvas {
          min-height: 400px;
          height: 400px;
          padding: 1rem;
        }
      }