:root {
    --primary-bg: #f5f5f5;
    --secondary-bg: #ffffff;
    --primary-text: #000;
    --secondary-text: #1a1a1a;
    --highlight-text: #9c0e5f;
    --highlight-hover: #ecabbb;
    --primary: #ecabbb;
    --border-color: #ecabbb;
    --border-dark: #d49b9d;
    --hover-bg: #ffdfdf;
    --success-bg: #d4edda;
    --success-text: #155724;
    --success-border: #c3e6cb;
    --pagination-hover: #d49b9d;
    --pagination-text-hover: #ffffff;
    --hidden-text: #808080;
    --warning-bg: #fff3cd;
    --warning-text: #856404;
    --warning-border: #ffeeba;
    --danger-bg: #f8d7da;
    --danger-text: #721c24;
    --danger-border: #f5c6cb;
    --banner: url("/static/gchan-cms-light.png");
}

[data-theme="dark"] {
    --primary-bg: #1e2021;
    --secondary-bg: #181a1b;
    --primary-text: #ffffff;
    --secondary-text: #f5f5f5;
    --highlight-text: #f163b4;
    --highlight-hover: #e590a5;
    --primary: #65172b;
    --border-color: #444444;
    --border-dark: #652c2e;
    --hover-bg: #460000;
    --success-bg: #1a3e29;
    --success-text: #99e6ab;
    --success-border: #255a32;
    --pagination-hover: #4d2122; 
    --pagination-text-hover: #d8d5cf;
    --hidden-text: #988f81;
    --warning-bg: #4c3f00;
    --warning-text: #ffeb5d;
    --warning-border: #7c6800;
    --danger-bg: #4f2d30;
    --danger-text: #ffb8c1;
    --danger-border: #804a4e;
    --banner: url("/static/gchan-cms-dark.png");
}


body {
    margin: 0;
    font-family: 'Quicksand', 'Noto Sans Thai', sans-serif;
    background-color: var(--primary-bg);
    color: var(--primary-text);
}

.banner {
    height: 8.75vw;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative;
    background-image: var(--banner);
}

.main {
    width: 70vw;
    margin: 0 auto;
    background-color: var(--secondary-bg);
    padding: 20px;
    border: 1px solid var(--border-color);
}

@media only screen and (max-width: 900px) {
    .main {
        width: 100vw;
    }
    .banner {
        height: 12.5vw;
    }
}

.navbar {
    background-color: var(--primary);
    padding: 15px 0;
    text-align: center;
    border-bottom: 2px solid var(--border-dark);
}

.navbar ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.navbar li {
    display: inline-block;
}

.navbar a, .navbar a:visited {
    color: var(--secondary-text);
    text-decoration: none;
    margin: 0 30px;
    font-size: 18px;
    transition: background-color 0.3s, border-radius 0.3s, transform 0.2s;
    border-radius: 5px;
    font-weight: bold;
}

.navbar a:hover {
    transform: scale(1.05);
}

.content {
    background-color: var(--secondary-bg);
    padding: 15px;
    border: 1px solid var(--border-color);
}

h1, h2, h3 {
    color: var(--secondary-text);
}

h1 {
    font-size: 30px;
    margin: 30px 0;
}

h2 {
    font-size: 24px;
    margin: 25px 0;
}

h3 {
    font-size: 20px;
    margin: 20px 0;
}

p {
    margin: 10px 0;
}

a, a:visited {
    color: var(--highlight-text);
    text-decoration: none;
    font-weight: bold;
}

a:hover {
    color: var(--highlight-hover);
    text-decoration: underline;
}

.problemset {
    width: 100%;
    border: 1px solid var(--border-color);
    border-collapse: collapse;
    margin: 10px 0;
    background-color: var(--secondary-bg);
}

.problemset th, .problemset td {
    padding: 10px;
    border: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
}

.problemset th {
    background-color: var(--primary);
    color: var(--primary-text);
}

.problemset tr:nth-child(even) {
    background-color: var(--primary-bg);
}

.problemset tr:hover {
    background-color: var(--hover-bg);
}

.problemset td.status, .verdict {
    font-size: 1.5em;
    font-family: monospace;
    margin: 0;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px 0;
}

.pagination p {
    margin: 0 5px;
}

.pagination a {
    color: var(--highlight-text);
    text-decoration: none;
    padding: 5px 10px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-size: 16px;
}

.pagination a:hover {
    background-color: var(--pagination-hover);
    color: var(--pagination-text-hover);
}

.footer {
    display: flex;
    column-gap: 8px;
    justify-content: center;
    align-items: center;
    background-color: var(--primary);
    color: var(--secondary-text);
    text-align: center;
    padding: 10px;
    font-size: 14px;
    border-top: 2px solid var(--border-dark);
    font-weight: bold;
}

.footer a {
    color: var(--secondary-text);
    text-decoration: underline;
}

.success {
    background-color: var(--success-bg);
    color: var(--success-text);
    padding: 15px;
    border: 1px solid var(--success-border);
    border-radius: 5px;
    margin: 10px 0;
}

.success td, .success th {
    background-color: var(--success-bg);
    color: var(--success-text);
}

.success:hover td {
    background-color: var(--success-border);
}

.table-wrapper {
    width: 100%;
    overflow-x: auto;
}

.hidden td, .hidden th, .hidden td a {
    color: var(--hidden-text);
    font-style: italic;
}

.datatable-table th button {
    padding: 0;
    margin: 0;
}

.datatable-input {
    width: 100%;
}
.switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 20px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-dark);
    transition: 0.4s;
    border-radius: 20px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: var(--secondary-bg);
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--highlight-text);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

option {
    background-color: var(--secondary-bg);
}

.datatable-pagination .datatable-active a, .datatable-pagination .datatable-active a:focus, .datatable-pagination .datatable-active a:hover, .datatable-pagination .datatable-active button, .datatable-pagination .datatable-active button:focus, .datatable-pagination .datatable-active button:hover {
    background-color: var(--primary);
    cursor: default;
}

.problemset td.status {
    max-width: 500px;
    width: 20%;
    overflow: hidden;
    text-overflow: ellipsis;
    position: relative;
}

#fixed-timer {
	position: fixed;
	right: 50px;
	bottom: 0;
	width: 240px;
	height: 80px;
	background-color: var(--primary);
	font-weight: bold;
}

.announcement_list,
.question_list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.announcement,
.question {
    background-color: var(--secondary-bg);
    border: 1px solid var(--border-color);
    padding: 15px;
    border-radius: 5px;
}

.announcement .subject,
.question .subject {
    color: var(--highlight-text);
    margin: 0 0 5px 0;
}

.timestamp {
    color: var(--hidden-text);
    font-size: 0.85em;
}

.body {
    margin-top: 10px;
    color: var(--secondary-text);
}

.no_answer {
    color: var(--hidden-text);
    font-style: italic;
    text-align: center;
    margin-top: 10px;
}

.answer {
    background-color: var(--primary-bg);
    border: 1px solid var(--highlight-text);
    padding: 10px;
    border-radius: 5px;
    margin-top: 10px;
}

.answer .subject {
    color: var(--highlight-text);
    margin: 0;
}

.notification {
    background-color: var(--success-bg);
    color: var(--success-text);
    padding: 15px;
    border: 1px solid var(--success-border);
    border-radius: 5px;
    margin: 10px 0;
    position: relative;
    display: flex;
    align-items: center;
}

.alert-heading {
    margin: 0;
    font-size: 1.25em;
    font-weight: bold;
    margin-right: 15px;
}

.notification span {
    color: var(--success-text);
}

.notification .close {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    text-decoration: none;
    font-size: 1.5em;
    font-weight: bold;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.notification .close:hover {
    opacity: 1;
}

.task_score {
    padding: 15px;
    border-radius: 5px;
}

.task_score.score_100 {
    background-color: var(--success-bg);
    border: 2px solid var(--success-border);
    color: var(--success-text);
}

.task_score.score_0_100 {
    background-color: var(--warning-bg);
    border: 2px solid var(--warning-border);
    color: var(--warning-text);
}

.task_score.score_0 {
    background-color: var(--danger-bg);
    border: 2px solid var(--danger-border);
    color: var(--danger-text);
}

.task_score .score {
    font-weight: bold;
    font-family: monospace;
    font-size: 2em;

}

.alert-danger {
    background-color: var(--danger-bg);
    color: var(--danger-text) !important;
    border: 1px solid var(--danger-border);
    padding: 15px;
    border-radius: 5px;
    margin: 10px 0;
}

.alert-warning {
    background-color: var(--warning-bg);
    color: var(--warning-text) !important;
    border: 1px solid var(--warning-border);
    padding: 15px;
    border-radius: 5px;
    margin: 10px 0;
}