:root {
    --bg-color: #FFF5E1; /* Matches nav bar cream background */
    --text-color: #3C2F2F; /* Dark brown text */
    --header-bg: #FF4500; /* Orange header */
    --link-color: #FF4500; /* Orange links */
    --nav-bg: #FFF5E1; /* Light theme nav background (cream) */
    --nav-text: #8B0000; /* Light theme nav text (dark red) */
    --dark-bg: #3C2F2F; /* Dark theme background */
    --dark-text: #F5F5DC; /* Dark theme text (beige) */
    --dark-nav-bg: #4A3C3C; /* Dark theme nav background (dark brown) */
    --dark-nav-text: #F5F5DC; /* Dark theme nav text (beige) */
}

/* Light theme defaults (apply to html or body normally) */
html {
    background-color: var(--bg-color);
    color: var(--text-color);
}

header {
    background-color: transparent;
    color: white;
    padding: 0;
    text-align: center;
    min-height: 125px;
    background-image: url('/static/images/4umheader2560.jpg');
    background-size: auto;
    background-position: left top;
    background-repeat: no-repeat;
    width: 100%;
    max-width: 100vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
    display: block;
    overflow-x: hidden;
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: "Times New Roman", Times, serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: all 0.3s;
    position: relative;
    z-index: 0;
    overflow-x: hidden;
    width: 100vw;
    box-sizing: border-box;
    max-width: 100%;
}

nav {
    background-color: var(--nav-bg);
    padding: 2px 6px;
    width: 100%;
    position: relative;
    top: 115px;
    z-index: 5;
    text-align: left;
    display: flex;
    align-items: center;
}

nav a {
    color: var(--nav-text);
    margin: 0 10px;
    text-decoration: none;
    font-family: "Times New Roman", Times, serif;
    font-size: 16px;
    font-weight: bold;
}

nav a::before {
    content: "[";
}

nav a::after {
    content: "]";
}

nav a:hover {
    text-decoration: underline;
}

.article-link {
    color: var(--nav-text);      /* matches nav link dark red */
    text-decoration: none;       /* remove underline */
    font-family: "Times New Roman", Times, serif;
    font-weight: bold;
}

.article-link:hover {
    text-decoration: underline;
}

.content-wrapper {
    margin-top: 120px;
    width: 95vw;
    max-width: 95%;
    overflow-x: hidden;
    box-sizing: border-box;
    margin-left: auto;
    margin-right: auto;
}

main p.small {
    line-height: 1.1;
    font-size: 12px;
    border: 2px solid #3C2F2F;
    padding: 5px;
    margin-top: 10px;
    display: inline-block;
    box-sizing: border-box;
}

footer {
    text-align: center;
    padding: 10px;
    background-color: var(--bg-color);
    color: var(--text-color);
    position: static;
    width: 100%;
    margin-top: 0px;
    padding-bottom: 20px; /* Reduced since button is in table */
}

.dark-theme {
    --bg-color: var(--dark-bg);
    --text-color: var(--dark-text);
    --link-color: #FF8C00;
    --nav-bg: var(--dark-nav-bg);
    --nav-text: var(--dark-nav-text);
}

@media (max-width: 600px) {
    main {
        margin: 0;
        padding: 0 10px;
    }
    nav a {
        margin: 0 5px;
    }
}

td {
    padding: 0;
    width: 100%;
    box-sizing: border-box;
}

main {
    max-width: none;
    margin: 0 auto;
    padding: 0 6px;
    line-height: 1.4;
    margin-top: 0;
    width: auto;
    font-size: 18px;
    overflow-x: hidden;
    box-sizing: border-box;
}

main h2 {
    font-size: 1.5em;
    margin-top: 0;
}

main form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

main .form-group {
    display: flex;
    flex-direction: row;
    gap: 10px;
    align-items: center;
}

main .form-group label {
    font-weight: bold;
    min-width: 150px;
}

main input {
    padding: 5px;
    font-family: "Times New Roman", Times, serif;
    font-size: 16px;
    border: 1px solid #3C2F2F;
    box-sizing: border-box;
    width: 240px;
    max-width: 240px;
}


main .form-table {
    width: 90%;
    max-width: 1200px;
    border-collapse: collapse;
    margin-bottom: 15px;
    margin-left: auto;
    margin-right: auto;
    table-layout: auto;
    border: 1px solid #3C2F2F;
    padding-bottom: 100px;
}


main .form-table th {
    text-align: right;
    padding: 5px 15px;
    font-weight: bold;
    vertical-align: top;
    width: 200px;
    white-space: nowrap;
    border: 1px solid #3C2F2F;
}

main .form-table td {
    padding: 5px 15px;
    vertical-align: top;
    border: 1px solid #3C2F2F;
}

main .form-table .description {
    font-size: 14px;
    white-space: normal;
    width: 600px;
    min-width: 300px;
    max-width: 600px;
    border: 1px solid #3C2F2F;
}

main .form-table td.button-cell {
    text-align: center; /* Center button horizontally */
    padding: 10px; /* Spacing around button */
    vertical-align: middle; /* Ensure vertical alignment */
}

main .captcha-table {
    border-collapse: collapse;
    width: 100%;
}

main .captcha-table td {
    padding: 0;
    vertical-align: top;
    border: 1px solid #3C2F2F;
}

main p {
    margin: 10px 0; /* 10px top/bottom margin for paragraph spacing */
    line-height: 1.2;
}

.register-button {
    display: inline-block;
    width: fit-content;
    padding: 6px 12px;
    background-color: #8B0000;
    border: 2px solid #3C2F2F;
    color: #FFF5E1;
    font-size: 16px;
    text-align: center;
    cursor: pointer;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s;
    border-radius: 6px;
    margin: 0 auto; /* Reinforce centering */
}

.register-button:hover {
    background-color: #A52A2A;
    color: #F5F5DC;
}