#calculator {
    width: 360px;
    background-color: rgba(6, 24, 61, 0.726);
    border-radius: 10px;
    text-align: center;
    padding: 10px;
    border: 2px solid rgb(255, 255, 255);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
    margin-top: 20px;
    margin-bottom: 20px;
}

#display {
    color: rgb(4, 9, 88) !important;
    height: 65px;
    background-color: rgb(255, 255, 255);
    font-family: monospace Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    font-size: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 10px;
    text-align: right;
    border-radius: 5px;
}

#display-bottom {
    font-size: 18px;
    color: rgb(19, 51, 4);
}

.row {
    display: flex;
    justify-content: space-between;
    margin: 5px 0;
}

.btn {
    width: 80px;
    height: 65px;
    cursor: pointer;
    transition: 0.2s;
    border-radius: 50px;
}

.btn:active {
    filter: brightness(70%);
}

.btn:hover {
    filter: brightness(80%);
}





.content{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0 3%;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

#features {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    background-color: #062e5742;
    color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
    margin-top: 20px;
    margin-bottom: 20px;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: 0.01em;
    font-family: 'Poppins', sans-serif;
    padding: 0px;
    pointer-events:painted;
}

#features li {
    width: calc(33.333% - 20px);
    height: 100%;
    list-style: none;
    margin: 10px;
    padding: 20px;
    border-radius: 10px;
    background-color: #0e31464b;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: background-color 0.3s ease, box-shadow 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

#features li:hover {
    background-color: #05262ba2;
    box-shadow: 0 8px 16px rgba(164, 173, 179, 0.582);
    color: #00796b;
    transform: translateY(-5px);
}

@media (max-width: 768px) {
    #features{
        padding: 0px;
    }

    #features li {
        width: calc(50% - 20px);
        font-size: 0.9rem;
        }
}

@media (max-width: 480px) {
    #features li {
        width: 100%;
        font-size: 0.7rem;
    }
}