/* for each language's index.html pages in sub-directories */
:root {
    --bg-color: #f4f6f8;
    --card-bg: #ffffff;
    --text-color: #333333;
    --text-muted: #666666;
    --primary-color: #1a73e8;
    --primary-hover: #1557b0;
    --border-color: #e0e0e0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

header {
    text-align: center;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 20px;
}

h1 {
    color: #111;
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.parent-project {
    font-size: 0.95rem;
}

h2 {
    color: #222;
    font-size: 1.5rem;
    margin-top: 40px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

/* Updated for high-contrast accessibility */
.notice {
    background-color: #f8f9fa;
    color: #3c4043;
    border-left: 4px solid #70757a;
    padding: 12px 16px;
    border-radius: 0 6px 6px 0;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.noscript-warning {
    background-color: #fce8e6;
    color: #c5221f;
    padding: 20px;
    border-radius: 6px;
    margin: 20px 0;
}

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

.contributor-group {
    background: #fafafa;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.contributor-name {
    font-size: 1.1rem;
    color: #111;
    margin-bottom: 12px;
    display: block;
}

.quiz-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}

.quiz-list li {
    background: var(--card-bg);
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.quiz-list li:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.quiz-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.quiz-link:hover {
    color: var(--primary-hover);
}

.count {
    background: #eee;
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: normal;
}

footer {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-muted);
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

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

/* Mobile Adjustments */
@media (max-width: 600px) {
    body { padding: 10px; }
    .container { padding: 15px; }
    h1 { font-size: 1.75rem; }
    .quiz-list { grid-template-columns: 1fr; }
}