styles.css

/* styles.css */
:root {
    --bg-color: #f5f5f5;
  }
  
  canvas {
    image-rendering: -webkit-optimize-contrast;
  
  }

  html {
    touch-action: pan-y;
  }
  
  
  /* styles.css */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body,
  html {
    height: 100%;
    background-color: #f5f5f5;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  }
  
  .wrapper {
    display: flex;
    flex-direction: column;
    height: 100%;
  }
  
  .toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #f5f5f5;
    padding: 12px;
    border-bottom: 1px solid #e0e0e0;
  }
  
  .title {
    font-weight: bold;
    color: #1c1c1c;
  }
  
  .content {
    flex-grow: 1;
    padding: 20px;
    overflow: auto;
    background-color: #ffffff;
    border-top: 1px solid #e0e0e0;
    border-bottom: 1px solid #e0e0e0;
  }
  
  
  #surrender_button {
    position: absolute;
    top: 5px;
    right: 5px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: #007aff;
    text-align: center;
    padding: 6px 16px;
    border-radius: 6px;
    outline: none;
    border: 1px solid rgba(0, 122, 255, 0.5);
    background-color: rgba(0, 122, 255, 0.1);
    cursor: pointer;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-transition: background-color 0.2s, border-color 0.2s;
    transition: background-color 0.2s, border-color 0.2s;
    -webkit-appearance: none;
  }
  
  #surrender_button:hover {
    background-color: rgba(0, 122, 255, 0.2);
    border-color: rgba(0, 122, 255, 0.7);
  }
  
  #surrender_button:active {
    background-color: rgba(0, 122, 255, 0.3);
    border-color: rgba(0, 122, 255, 0.9);
  }
  
  
  /* styles.css */
  .level-text {
    position: absolute;
    left: 10px;
    top: 5px;
    font-size: 14px;
    font-weight: 600;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: black;
    background-color: var(--bg-color);
    padding: 5px 10px;
    border: 1px solid black;
    border-radius: 4px;
  }