body {
    margin: auto;
    padding: auto;
    background-color: #EFEEEE;
    font-family: "Inter", sans-serif;
    font-size: 50px;
    font-weight: 400;
}

.grid-container .operator {
    background-color: #4CA3B9;
}

.container {
    background-color: #B7CACE;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    max-width: 340px;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.text-container {
    margin-bottom: 20px;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(4, 70px);
    grid-template-rows: repeat(5, 70px);
    gap: 4px;
    padding: 0px;
    margin-top: 10px;
}

.grid-container button:nth-child(17) {
    grid-column: span 2;
}

.grid-container button {
    background-color: #E8E8E8;
    border-radius: 8px;
    padding: 0px;
    margin: 0px;
    width: 100%;
    height: 70px;
    font-size: 30px;
    box-sizing: border-box;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
    transition: box-shadow 0.2s ease;
}

input {
    background-color: #B7CACE;
    border-radius: 15px;
    border: none;
    outline: none;
    width: 280px;
    height: 50px;
    margin-top: 30px;
    font-family: "Inter", sans-serif;
    font-size: 40px;
    font-weight: 400;
    text-align: right;
}

.grid-container button:hover {
    background-color: #D3D3D3;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.grid-container button:active {
    background-color: #A9A9A9;
    transform: scale(0.95);
    transition: transform 0.1s ease;
    box-shadow: inset 2px 2px 5px rgba(0, 0, 0, 0.2);
}

.grid-container button.active {
    background-color: #A9A9A9;
    transform: scale(0.95);
    transition: transform 0.1s ease;
    box-shadow: inset 2px 2px 5px rgba(0, 0, 0, 0.2);
}

#equals {
    background: linear-gradient(135deg, #4CA3B9, #3594A3);
    color: white;
    font-weight: bold;
    border-radius: 10px;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
}

#equals:hover {
    background: linear-gradient(135deg, #3594A3, #24788A);
}

#equals:active {
    background: #24788A;
    transform: scale(0.95);
}