* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

html, body {
    height: 100%;
    width: 100%;
    background: linear-gradient(to right, #4facfe, #00f2fe); /* Gradient background */
    display: flex;
    justify-content: center;
    align-items: center;
}

#main {
    background: white;
    width: 90%;
    max-width: 450px;
    border-radius: 15px;
    box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.2);
    padding: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 20px; /* Space between elements */
}

#Head h1 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

#Msg p {
    font-size: 1rem;
    color: #555;
    margin-bottom: 20px;
    line-height: 1.5;
}

#Input {
    display: flex;
    flex-direction: column;
    gap: 15px; /* Space between input fields */
}

#Input div {
    text-align: left;
}

#Input p {
    font-size: 0.9rem;
    font-weight: bold;
    color: #444;
    margin-bottom: 5px;
}

#Input input {
    padding: 12px;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    outline: none;
    transition: all 0.3s ease;
}

#Input input:focus {
    border-color: #00c6ff;
    box-shadow: 0px 4px 8px rgba(0, 198, 255, 0.3);
}

#Calc input {
    padding: 12px 20px;
    font-size: 1rem;
    color: white;
    background-color: #00c6ff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

#Calc input:hover {
    background-color: #0078b3;
}

#Output {
    margin-top: 20px;
    padding: 10px;
    border-top: 1px solid #ddd;
}

#Tamt, #Total {
    font-size: 1.2rem;
    color: #333;
    margin: 10px 0;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    #main {
        width: 95%;
        padding: 15px;
    }

    #Head h1 {
        font-size: 1.5rem;
    }

    #Msg p {
        font-size: 0.9rem;
    }

    #Input input {
        font-size: 0.9rem;
    }

    #Calc input {
        font-size: 0.9rem;
    }

    #Tamt, #Total {
        font-size: 1rem;
    }
}