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

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f4;
    font-family: 'DotGothic16', sans-serif;
}

.container {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    text-align: center;
    width: 300px;
}

.display {
    width: 100%;
    height: 50px;
    background: #222;
    color: #fff;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 10px;
    margin-bottom: 10px;
    border-radius: 5px;
}

.numeros,
.operacoes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 5px;
}

button {
    padding: 20px;
    font-size: 18px;
    border: none;
    background: #ddd;
    cursor: pointer;
    border-radius: 5px;
    user-select: none;
}

button:active {
    background: #bbb;
}

.igual {
    grid-column: span 1;
    background: #ff9500;
    color: white;
}

.clear,.caractere {
    background: red;
    color: white;
    grid-column: span 1;

}

button:active.clear {
    background: #da0000;
}

button:active.caractere {
    background: #da0000;
}

button:active.igual {
    background: #d87e00;
}