* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    }
    
    body {
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
      background-color: #f5f5f5;
      transition: background-color 0.5s ease;
    }
    
    body.work-mode {
      background-color: #ffedeb;
    }
    
    body.break-mode {
      background-color: #ebf9ff;
    }
    
    .container {
      width: 90%;
      max-width: 500px;
      text-align: center;
      background-color: white;
      padding: 2rem;
      border-radius: 24px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      transition: transform 0.3s ease;
      position: relative;
    }
    
    .timer-display {
      font-size: 6rem;
      font-weight: 300;
      color: #333;
      margin: 2rem 0;
      transition: color 0.3s ease;
      cursor: pointer;
      position: relative;
    }
    
    .timer-display:hover::after {
      content: "Click to edit";
      position: absolute;
      bottom: -1.5rem;
      left: 50%;
      transform: translateX(-50%);
      font-size: 0.9rem;
      color: #666;
      white-space: nowrap;
    }
    
    .timer-display-input {
      font-size: 6rem;
      font-weight: 300;
      width: 3ch;
      border: none;
      border-bottom: 2px solid #ddd;
      text-align: center;
      background: transparent;
      color: inherit;
      outline: none;
    }
    
    .timer-display-input:focus {
      border-bottom-color: #ff6347;
    }
    
    .work-mode .timer-display {
      color: #ff6347;
    }
    
    .break-mode .timer-display {
      color: #4dabf7;
    }
    
    .session-label {
      font-size: 1.5rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: #666;
      margin-bottom: 1rem;
      transition: color 0.3s ease;
    }
    
    .work-mode .session-label {
      color: #ff6347;
    }
    
    .break-mode .session-label {
      color: #4dabf7;
    }
    
    .progress-container {
      width: 100%;
      height: 8px;
      background-color: #f1f1f1;
      border-radius: 4px;
      margin: 1rem 0 2rem;
      overflow: hidden;
    }
    
    .progress-bar {
      height: 100%;
      width: 0%;
      transition: width 1s linear;
    }
    
    .work-mode .progress-bar {
      background-color: #ff6347;
    }
    
    .break-mode .progress-bar {
      background-color: #4dabf7;
    }
    
    .btn-container {
      display: flex;
      justify-content: center;
      gap: 1rem;
    }
    
    .btn {
      border: none;
      padding: 1rem 2rem;
      border-radius: 50px;
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    
    .btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 8px rgba(0, 0, 0, 0.1);
    }
    
    .btn:active {
      transform: translateY(1px);
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    
    .btn-primary {
      background-color: #ff6347;
      color: white;
    }

    .break-mode .btn-primary {
      background-color: #4dabf7;
    }
    
    .btn-secondary {
      background-color: #f1f1f1;
      color: #666;
    }

    .btn-warning {
      background-color: #ff6347;
      color: white;
    }

    .btn-stop {
      background-color: #ff3347;
      color: white;
    }
    
    .controls-toggle {
      position: absolute;
      top: 1rem;
      right: 1rem;
      display: flex;
      gap: 0.75rem;
    }
    
    .control-btn {
      background: none;
      border: none;
      cursor: pointer;
      font-size: 1.5rem;
      color: #666;
      transition: transform 0.2s ease;
    }
    
    .control-btn:hover {
      transform: scale(1.1);
    }
    
    .tomato-icon {
      font-size: 2rem;
      margin-bottom: 1rem;
    }

    .reset-warning {
      font-size: 0.8rem;
      color: #ff6347;
      margin-top: 0.5rem;
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .reset-warning.visible {
      opacity: 1;
    }
    
    .pulse {
      animation: pulse 1s infinite;
    }
    
    .music-panel {
      position: absolute;
      top: 3.5rem;
      right: 1rem;
      background-color: white;
      border-radius: 12px;
      padding: 1.5rem;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      width: 280px;
      text-align: left;
      z-index: 10;
      opacity: 0;
      pointer-events: none;
      transform: translateY(-10px);
      transition: all 0.3s ease;
    }
    
    .music-panel.active {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }
    
    .music-panel h3 {
      font-size: 1rem;
      margin-bottom: 1rem;
      color: #333;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    
    .music-tracks {
      margin-bottom: 1.5rem;
    }
    
    .music-track {
      display: flex;
      align-items: center;
      padding: 0.75rem;
      margin-bottom: 0.5rem;
      border-radius: 8px;
      transition: all 0.2s ease;
      cursor: pointer;
    }
    
    .music-track:hover {
      background-color: #f5f5f5;
    }
    
    .music-track.active {
      background-color: #ebf9ff;
    }
    
    .track-icon {
      margin-right: 0.75rem;
      font-size: 1.2rem;
    }
    
    .track-name {
      font-size: 0.9rem;
      font-weight: 500;
      color: #333;
    }
    
    .track-status {
      margin-left: auto;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: transparent;
      transition: background-color 0.2s ease;
    }
    
    .music-track.active .track-status {
      background-color: #4dabf7;
    }
    
    .music-option {
      margin-bottom: 1rem;
    }
    
    .music-radio {
      display: flex;
      align-items: center;
      margin-bottom: 0.5rem;
    }
    
    .music-radio input {
      margin-right: 0.5rem;
    }
    
    .music-radio label {
      font-size: 0.9rem;
      color: #666;
      cursor: pointer;
    }
    
    .custom-url {
      width: 100%;
      padding: 0.5rem;
      border: 1px solid #ddd;
      border-radius: 6px;
      font-size: 0.8rem;
      margin-top: 0.5rem;
      display: none;
    }
    
    .custom-url.active {
      display: block;
    }
    
    .music-controls {
      display: flex;
      justify-content: space-between;
      margin-top: 1rem;
    }
    
    .music-btn {
      padding: 0.5rem 1rem;
      font-size: 0.8rem;
      border-radius: 6px;
      border: none;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    
    .music-btn.save {
      background-color: #4dabf7;
      color: white;
    }
    
    .music-btn.cancel {
      background-color: #f1f1f1;
      color: #666;
    }
    
    .music-status {
      margin-top: 0.8rem;
      font-size: 0.85rem;
      color: #666;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    
    .music-status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #ddd;
    }
    
    .music-status-dot.active {
      background-color: #4CAF50;
    }
    
    .volume-control {
      margin-top: 1rem;
      width: 100%;
    }
    
    .volume-control label {
      display: block;
      font-size: 0.85rem;
      color: #666;
      margin-bottom: 0.5rem;
    }
    
    .volume-slider {
      width: 100%;
      height: 4px;
      -webkit-appearance: none;
      background: #ddd;
      border-radius: 2px;
      outline: none;
    }
    
    .volume-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: #4dabf7;
      cursor: pointer;
    }
    
    .volume-slider::-moz-range-thumb {
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: #4dabf7;
      cursor: pointer;
      border: none;
    }
    
    .alarm-status {
      position: fixed;
      top: 1rem;
      left: 50%;
      transform: translateX(-50%);
      background-color: rgba(255, 99, 71, 0.9);
      color: white;
      padding: 0.75rem 1.5rem;
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      z-index: 100;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
    }
    
    .alarm-status.active {
      opacity: 1;
      pointer-events: auto;
    }
    
    .alarm-status-icon {
      animation: pulse 1s infinite;
    }
    
    .fullscreen-btn {
      position: absolute;
      top: 1rem;
      left: 1rem;
      background: none;
      border: none;
      cursor: pointer;
      font-size: 1.5rem;
      color: #666;
      transition: transform 0.2s ease;
    }
    
    .fullscreen-btn:hover {
      transform: scale(1.1);
    }
    
    @keyframes pulse {
      0% {
        transform: scale(1);
      }
      50% {
        transform: scale(1.05);
      }
      100% {
        transform: scale(1);
      }
    }
    
    @media (max-width: 768px) {
      .timer-display {
        font-size: 4.5rem;
      }
      
      .timer-display-input {
        font-size: 4.5rem;
      }
      
      .session-label {
        font-size: 1.25rem;
      }
      
      .music-panel {
        width: 250px;
      }
    }

    .version-tag {
      position: absolute;
      bottom: 0.5rem;
      right: 0.5rem;
      font-size: 0.75rem;
      color: rgba(0, 0, 0, 0.3);
      padding: 0.25rem 0.5rem;
      border-radius: 4px;
      transition: background-color 0.2s ease, color 0.2s ease;
      cursor: help;
    }

    .version-tag:hover {
      background-color: rgba(0, 0, 0, 0.05);
      color: rgba(0, 0, 0, 0.6);
    }

    .version-tag:hover::after {
      content: "This tool is made by Jeremy";
      position: absolute;
      bottom: 100%;
      right: 0;
      background-color: rgba(0, 0, 0, 0.7);
      color: white;
      padding: 0.5rem;
      border-radius: 4px;
      white-space: nowrap;
      pointer-events: none;
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .version-tag:hover::after {
      opacity: 1;
    }