:root {
    --scrolling-banner-back-color: #d0262f;
    --scrolling-banner-fore-color: white;
    --button-back-color: #d0262f;
    --button-fore-color: white;
}

html, body {
    height: 100%;
    margin: 0;
    font-family: 'Kalam', sans-serif;
    font-weight: 400;
    font-style: normal;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 800px;
    margin-top: 0px;
    margin-bottom: 0px;
    margin-left: auto;
    margin-right: auto;
    padding: 0px;
    padding-bottom: 0px;
    box-sizing: border-box;
    text-align: center;
}

.banner {
    width: 100%;
    display: block;
}

image {
    margin-top: 0px;
    margin-bottom: 0px;
}

.header {
    margin-top: 4px;
    padding: 0px;
    width: 100%;
    overflow: hidden;
    background-color: var(--scrolling-banner-back-color);
    color: var(--scrolling-banner-fore-color);
}
.main {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
    box-sizing: border-box;
}

p {
    margin-top: 15px;
    margin-bottom: 0;
    margin-left:15px;
    font-size: 26px;
    text-align: left;
    line-height: 1.5;
    font-weight:bold;
}


.styled-button {
    width: 100%;
    margin-top: 20px;
    background-color: var(--button-back-color);
    color: var(--button-fore-color);
    border: 2px solid var(--button-back-color);
    padding: 10px 0; /* Adjust padding for a better look */
    box-sizing: border-box;
    font-family: 'Kalam', sans-serif;
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.3s ease-in-out;
    text-align: center;
    box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.3); /* Soft drop shadow */
}

    .styled-button:hover {
        box-shadow: 6px 6px 15px rgba(0, 0, 0, 0.5);
        transform: translateY(-2px); /* Slight lift effect */
    }

.custom {
    background-color: var(--button-fore-color);
    color: var(--button-back-color);
    border: 2px solid var(--button-back-color);
}



.chart {
    display: block;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    margin-top: 20px;
    border: 3px solid black;
    box-sizing: border-box;
}




@media (max-width: 600px) {

    p {
        font-size: 21px;
    }

    .styled-button {
        font-size: 21px;
    }

    .domain-box {
        width: 250px;
        font-size: 18px;
    }

    #doubler {
        font-size: 1em;
        width: 250px;
    }

        #doubler span {
            width: 2ch;
            margin: 0 2px; /* ← loosen them up */
        }

}