.arc {
    --a: 61deg; /* control the progression */
    width: 133%;
    transform: rotate(-30deg);
    background: #070707;
    position:absolute;
    bottom: -375%;
    left: -16.5%;
    aspect-ratio: 1;
    padding: 2px; /* the boder thickness */
    box-sizing: border-box;
    border-radius: 50%;
    mask:
        linear-gradient(#0000 0 0) content-box intersect,
        conic-gradient(#000 var(--a),#0000 0);
  }

  @keyframes needleWobble {
    0% {
      transform: rotate(var(--final-angle));
    }
    20% {
      transform: rotate(calc(var(--final-angle) + 2deg));
    }
    40% {
      transform: rotate(calc(var(--final-angle) - 1deg));
    }
    60% {
      transform: rotate(calc(var(--final-angle) + 1deg));
    }
    80% {
      transform: rotate(calc(var(--final-angle) - 0.5deg));
    }
    100% {
      transform: rotate(var(--final-angle));
    }
  }

  .inverse-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9;
    background: conic-gradient(
      from 270deg,
      rgba(0, 0, 0, 0.2) 0deg,
      rgba(0, 0, 0, 0.2) 46.4deg,
      transparent 45.05deg,
      transparent 135deg,
      rgba(0, 0, 0, 0.2) 135.05deg,
      rgba(0, 0, 0, 0.2) 360deg
    );
    user-select: none;
    -webkit-user-select: none;
    /* Force hardware acceleration */
    transform: translateZ(0);
    will-change: transform, background;
    /* Adding a tiny transparent border can hide edge artifacts */
    border: 1px solid transparent;
  }

  .question-label {
    background: linear-gradient(120deg, #b8b8b8, #f0f0f0, #8a8a8a, #e0e0e0, #545454);
    background-size: 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shine 5s linear infinite;
    text-align: center;
    font-family: "Orbitrn", serif;
    font-optical-sizing: auto;
    font-weight: 900; /* from 400 to 900, 900 being bold */
    font-style: normal;
    text-overflow: ellipsis;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.inner-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2vh; /* Increased for better detailing */
    height: 2vh;
    border-radius: 50%; /* Makes it a circle */
    background: radial-gradient(circle, 
        #e0e0e0 0%,   /* Bright center */
        #a8a8a8 30%,  /* Mid-tone gray */
        #5c5c5c 60%,  /* Darker edge */
        #2e2e2e 100%  /* Outer shadow */
    );
    box-shadow: 
        inset 3px 3px 5px rgba(255, 255, 255, 0.4),  /* Top-left highlight */
        inset -3px -3px 5px rgba(0, 0, 0, 0.6), /* Bottom-right shadow */
        0px 2px 4px rgba(0, 0, 0, 0.8); /* Outer drop shadow for depth */
    border: 1px solid #888; /* Subtle metallic rim */
    z-index: 10;
  }

  .logo {
    position: relative;
    height: 8vh;
    width: 40%;
    border: 5px solid black;
    display: flex;
    justify-content: center;
    align-items: center;
    border-image: linear-gradient(120deg, #b8b8b8, #f0f0f0, #8a8a8a, #e0e0e0, #545454) 1;
    background-size: 200%;
    box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.6);
    margin: 0 auto;
  }

  .stereo-sidebar {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 9vw;
    height: 100vh;
    color: #ddd;
    padding: 20px 0;
    
    /* Apply the lighter metallic gradient */
    border: 0.7vmin solid #888;
    background: linear-gradient(145deg, #444, #bbb);
    box-shadow: 
      inset 2px 2px 5px rgba(0,0,0,0.6),
      3px 0 10px rgba(0, 0, 0, 0.5),
      5px 0 15px rgba(0, 0, 0, 0.3);
    
    /* Retain the existing structure */
    display: flex;
    flex-direction: column;
    align-items: center;
    
  }

  .big-background{
    position: fixed;
    top: 13 vh;
    margin: auto;
    width: 75%;
    height: 90vh;
    background: url('./test-wood2.jpg')no-repeat center center;
    background-size: cover;
    background-color: #1a1717;
    border: 2px solid black;
    border-radius: 10px; 
    filter : drop-shadow(0px 10px 10px rgba(0, 0, 0, 0.5))
              drop-shadow(-10px 10px 10px rgba(0, 0, 0, 0.5))
              drop-shadow(-10px 10px 15px rgba(0, 0, 0, 0.3));
        
    z-index: -2;
  }