:root {
    --staff-color: #475569;         
    --staff-text-color: #ffffff;    
    --tourist-color: #C026D3;       
    --tourist-text-color: #ffffff;  
  }
  * { box-sizing: border-box; }
  body, html { 
    margin: 0; padding: 0; 
    height: 100%; height: 100dvh; 
    font-family: system-ui, -apple-system, sans-serif; 
    background-color: #000000;
    display: flex; flex-direction: column;
    overflow: hidden; 
  }

  #tourist-zone {
    background-color: #323232;
    padding: 12px;
    padding-top: max(12px, env(safe-area-inset-top));
    transform: rotate(180deg); 
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
  }

  #status-banner {
    padding: 14px 15px;
    font-size: 17px; 
    font-weight: 700;
    text-align: center;
    background-color: #212529;
    color: #adb5bd;
    border-bottom: 1px solid #343a40;
    z-index: 10;
    transition: all 0.2s ease;
  }
  #status-banner.listening { background-color: #d4edda !important; color: #155724 !important; }
  #status-banner.processing { background-color: #fff3cd !important; color: #856404 !important; }

  #transcript-container {
    flex: 1; display: flex; flex-direction: column; min-height: 0; background-color: #000000;
  }

  .transcript-half {
    flex: 1; overflow-y: auto; padding: 10px 12px; 
    display: flex; flex-direction: column-reverse; gap: 4px; 
    position: relative; cursor: pointer; 
  }

  #transcript-tourist { transform: rotate(180deg); border-top: 2px solid #2a2a2a; background-color: rgba(192, 38, 211, 0.35); }
  #transcript-staff { background-color: rgba(71, 85, 105, 0.40); }
  
  .transcript-half::before {
    content: attr(data-watermark);
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    font-size: 2.5rem; font-weight: 800; text-align: center;
    color: rgba(255, 255, 255, 0.2); white-space: pre-wrap; pointer-events: none; z-index: 0;
  }

  .log-entry { display: flex; flex-direction: column; align-items: flex-start; position: relative; z-index: 1; width: 100%; }
  .bubble {
    padding: 0; background: transparent !important; box-shadow: none; color: #ffffff !important;
    font-size: 18px; line-height: 1.15; font-weight: 500; text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
  }
  .transcript-half.large-text .bubble { font-size: 26px; line-height: 1.2; }
  
  .error-text { color: #ffeb3b; font-weight: bold; background-color: rgba(0,0,0,0.4); padding: 4px 8px; border-radius: 6px; display: inline-block; }

  .control-panel {
    background-color: #323232; padding: 12px; box-shadow: 0 -2px 10px rgba(0,0,0,0.05); padding-bottom: max(12px, env(safe-area-inset-bottom));
  }

  .top-action-row { display: flex; gap: 10px; margin-bottom: 10px; width: 100%; }
  .detect-btn, .share-btn {
    flex: 1; padding: 12px; border: none; border-radius: 10px; font-size: 15px; font-weight: bold; box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2); transition: all 0.2s ease;
  }
  .detect-btn { background-color: var(--tourist-color); color: var(--tourist-text-color); }
  .share-btn { background-color: var(--staff-color); color: var(--staff-text-color); }
  .detect-btn:active, .share-btn:active { filter: brightness(0.9); transform: scale(0.98); }

  .fallback-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
  .fallback-row select { flex: 1; padding: 10px; border: 1px solid #ced4da; border-radius: 8px; font-size: 15px; background-color: #f8f9fa; }

  .grid-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
  .grid-row select { width: 100%; padding: 10px 10px; border: none; border-radius: 10px; font-size: 14px; font-weight: 600; color: white; text-align: center; text-align-last: center; }
  #staff-gender { background-color: var(--staff-color); color: var(--staff-text-color); }
  #tourist-gender { background-color: var(--tourist-color); color: var(--tourist-text-color); }

  .control-panel.compact .top-action-row, .control-panel.compact .fallback-row, .control-panel.compact .grid-row, .control-panel.compact #install-container { display: none !important; }
  .control-panel.compact { display: none !important; }
  #install-container { text-align: center; margin-top: 15px; font-size: 14px; color: #aaa; }
  #install-container:empty { display: none; margin: 0; }
  .grid-row:last-of-type { margin-bottom: 0; }

  #qr-overlay, #qr-overlay-2 { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background-color: rgba(0, 0, 0, 0.95); z-index: 9999; display: flex; flex-direction: column; justify-content: center; align-items: center; cursor: pointer; }
  #qr-image, #qr-image-2 { width: 75%; max-width: 350px; background-color: #ffffff; padding: 20px; border-radius: 12px; }
  #qr-overlay p, #qr-overlay-2 p { color: rgba(255, 255, 255, 0.5); margin-top: 20px; font-size: 16px; }

  #critical-error-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(220, 38, 38, 0.95); z-index: 10000; display: flex; justify-content: center; align-items: center; backdrop-filter: blur(5px); }
  .error-content { background-color: #ffffff; border-radius: 16px; padding: 20px; width: 90%; max-width: 340px; text-align: center; box-shadow: 0 10px 40px rgba(0,0,0,0.5); color: #000000; }
  .error-icon { font-size: 45px; margin-bottom: 5px; }
  .error-content h2 { color: #dc2626; font-size: 22px; margin: 0 0 10px 0; }
  .error-content p { font-size: 15px; font-weight: 500; margin-bottom: 20px; line-height: 1.4; }
  .error-dismiss { background-color: #1f2937; color: white; border: none; padding: 12px 20px; font-size: 16px; font-weight: bold; border-radius: 10px; width: 100%; cursor: pointer; }
  
  .fluid-wave { display: none; }
  .fluid-wave-half { position: absolute; top: 0; left: 0; width: 100%; height: 50%; overflow: hidden; display: flex; align-items: center; background: transparent; pointer-events: none; z-index: 5; }
  .fluid-sine-wave { width: 100%; height: 100%; }
  .wave-path-1 { fill: none; stroke: var(--staff-color); stroke-width: 2.5; opacity: 0.9; animation: harmonizeWave 1.2s ease-in-out infinite alternate; }
  .wave-path-2 { fill: none; stroke: var(--tourist-color); stroke-width: 2; opacity: 0.6; animation: harmonizeWave 0.9s ease-in-out infinite alternate-reverse; }
  .wave-path-3 { fill: none; stroke: var(--staff-color); stroke-width: 1.2; opacity: 0.35; animation: harmonizeWave 0.6s ease-in-out infinite alternate; }
  @keyframes harmonizeWave { 0% { transform: scaleY(0.4); transform-origin: center; } 100% { transform: scaleY(1.6); transform-origin: center; } }