body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    padding: 15px;
    margin: 0;
    line-height: 1.6;
}

/* main layout */
.container {
    text-align: center;
    max-width: 800px;
    width: 90%;
    margin: auto;
}

/* headings */
h1 {
    margin-top: 30px;
}

h2 {
    margin-top: 30px;
}

h3 {
    margin-top: 35px;
}

/* image */
img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

/* button */
button {
    font-size: 20px;
    padding: 8px 18px;
    border: none;
    border-radius: 6px;
    background-color: #3a8cff;
    color: white;
    cursor: pointer;
}

button:hover {
    background-color: #2f6ed6;
}

/* table */
.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    margin-top: 10px;
}

td {
    text-align: center;
    padding: 8px;
    border-bottom: 1px solid #ddd;
}

/* link */
a {
    text-decoration: none;
    color: inherit;
}

a:hover {
    text-decoration: underline;
    color: rgb(0, 203, 230);
}

/* mobile optimization */
@media (max-width: 600px) {

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    h3 {
        font-size: 18px;
    }

    img {
        width: 90%;
    }

    button {
        width: 80%;
        font-size: 18px;
    }

}

/* color */
.section-purple {
    color: rgb(91, 6, 172);
}

.section-gold {
    color: rgb(214, 163, 23);
}

.section-blue {
    color: rgb(4, 94, 168);
}