.box {
    background: rgba(70, 44, 44, 0.15);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.background {
    background-image: url(../image/calc.png1.jpg);
    background-repeat: no-repeat;
    background-size: cover;
}


.bg{
    background-color: rgba(0, 0, 255, 0);
}

 .calculator-box {
      background: #1f1f1f;
      padding: 30px;
      border-radius: 20px;
      box-shadow: 0 0 30px rgba(0, 0, 0, 0.6);
    }

    .calc-title {
      color: #fff;
      font-weight: bold;
      margin-bottom: 20px;
    }

    .calc-input {
      background: #333;
      border: none;
      color: white;
      border-radius: 10px;
      padding: 10px;
      font-size: 18px;
      width: 100%;
    }

    .calc-input::placeholder {
      color: #aaa;
    }

    .calc-btn {
      background-color: #444;
      border: none;
      color: white;
      font-size: 20px;
      border-radius: 12px;
      padding: 10px 20px;
      margin: 6px;
      transition: all 0.3s ease;
    }

    .calc-btn:hover {
      background-color: #666;
    }

    .calc-clear {
      background-color: #ff4d4d;
    }

    .calc-answer {
      color: white;
      margin-top: 10px;
    }

    .btn-yellow{
      background-color: #ff9f0a ;
    }
    .btn-black{
      background-color: #2a2a2c;
    }
    .b-50{
      border-radius: 50%;
    }
    .btn-black:active {
    transform: scale(0.95);
    background-color: #1f1f1f;
    }
    .btn-black:hover {
    background-color: #444;
    box-shadow: 0 0 10px #999;
    }


    /* trasparent background  */
/* .calculator-box {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
} */