:root {
    --primary-color: #006994;
    --secondary-color: #003366;
    --accent-color: #FF8C00;
    --text-color: #333333;
    --light-bg: #F5F7FA;
    --dark-bg: #1A2E40;
    --font-main: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: Georgia, 'Times New Roman', Times, serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    line-height: 1.6;
    background-color: #fff;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

header {
    background-color: var(--dark-bg);
    color: white;
    padding: 1rem 0;
    position: relative;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.site-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
}

.site-title a {
    color: white;
    text-decoration: none;
}

.toc {
    background-color: var(--light-bg);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 4px;
}

.toc h2 {
    margin-top: 0;
    padding-top: 0;
    color: var(--primary-color);
    border-top: none;
}

.toc ul {
    list-style: none;
    columns: 2;
}

.toc li {
    margin-bottom: 0.5rem;
    break-inside: avoid;
}

.toc a {
    color: var(--secondary-color);
    text-decoration: none;
}

.toc a:hover {
    text-decoration: underline;
}

main {
    padding: 2rem 0;
}

article {
    margin-top: 2rem;
    margin-bottom: 2rem;
}

h1 {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    font-family: var(--font-heading);
}

h2 {
    margin: 2rem 0 1rem;
    color: var(--primary-color);
    font-family: var(--font-heading);
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

h3 {
    margin: 1.5rem 0 0.8rem;
    color: var(--secondary-color);
}

p {
    margin-bottom: 1.2rem;
}

ul {
    list-style: none;
}

.salary-highlight {
    background-color: var(--light-bg);
    border-left: 4px solid var(--accent-color);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.salary-highlight h3 {
    margin-top: 0;
    color: var(--accent-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.95rem;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: var(--light-bg);
    font-weight: 600;
}

tr:hover {
    background-color: rgba(0,105,148,0.05);
}

.chart-container {
    margin: 2rem 0;
    height: 400px;
    background-color: var(--light-bg);
    padding: 1rem;
    border-radius: 4px;
}

.chart-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #666;
    font-style: italic;
}

footer {
    background-color: var(--dark-bg);
    color: white;
    padding: 2rem 0;
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
}

.copyright {
    margin-top: 1rem;
    text-align: center;
}

.disclaimer {
    background-color: rgba(0,0,0,0.2);
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.language-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1rem;
    margin: 1rem 0;
}

.language-links a {
    color: white;
    text-decoration: none;
}

.language-links a:hover {
    text-decoration: underline;
}

.language-links a[aria-current="true"] {
    font-weight: bold;
    text-decoration: underline;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .toc ul {
        columns: 1;
    }
}