*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #151218, #2d1f3a, #0e0e12);
    font-family: Arial, Helvetica, sans-serif;
}

.calculatorBox{
    background: rgba(255,255,255,0.08);
    /*background: linear-gradient(46deg,rgba(119, 65, 150, 1) 0%, 
    rgba(244, 228, 247, 1) 83%);*/
    width: 290px;
    padding: 20px;
    border-radius: 25px;
    backdrop-filter: blur(14px);
    box-shadow:
        0 0 15px rgba(163, 92, 255, 0.35),
        0 0 40px rgba(163, 92, 255, 0.15);
}

.inputBox{
    width: 100%;
    height: 60px;
    border: none;
    outline: none;
    padding: 15px;
    margin-bottom: 18px;
    font-size: 1.4rem;
    text-align: right;
    color: white;
    background: rgba(0,0,0,0.35);
    border-radius: 18px;
    box-shadow: inset 0 0 10px rgba(255,255,255,0.05);
}

.buttons{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

button{
    border: none;
    border-radius: 18px;
    padding: 16px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    color: white;
    background: rgba(255,255,255,0.08);
    transition: 0.2 ease;
    box-shadow: 0 0 12px rgba(182, 97, 255, 0.2);
}

button:hover{
    transform: translateY(-2px);
    background: rgba(255,255,255,0.16);
    box-shadow: 0 0 8px rgba(187, 97, 255, 0.4);
}

button:active{
    transform: scale(0.95);
}

.operator{
    background: #8b3dff;
}

.operator:hover{
    box-shadow: 0 0 15px rgba(139, 61, 255, 0.4);
}

.clear,
.delete{
    background: #ff4d6d;
}

.equals{
    grid-column: span 2;
}

.equals:hover{
    box-shadow: 0 0 15px rgba(0, 184, 148, 0.4);
}