/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --text-color: #333;
    --bg-color: #ffffff;
    --code-bg: #f4f4f4;
    --border-color: #ddd;
    --link-color: #3498db;
    --link-hover: #2980b9;
    --header-bg: #34495e;
    --footer-bg: #2c3e50;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    font-size: 16px;
}

/* Header Styles */
header {
    background-color: var(--header-bg);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    color: #ff9800;
}

header nav {
    display: flex;
    gap: 1.5rem;
}

header nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

header nav a:hover {
    opacity: 0.8;
}

/* Main Content */
main {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

.content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    border-bottom: 3px solid var(--secondary-color);
    padding-bottom: 0.5rem;
    margin-top: 0;
}

h2 {
    font-size: 2rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.3rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.1rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: 1rem;
}

/* Links */
a {
    color: var(--link-color);
    text-decoration: none;
}

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

/* Lists */
ul, ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Code Blocks */
code {
    background-color: var(--code-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
}

pre {
    background-color: var(--code-bg);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

pre code {
    background-color: transparent;
    padding: 0;
    font-size: 0.9rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
    overflow-x: auto;
    display: block;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border: 1px solid var(--border-color);
}

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

tr:nth-child(even) {
    background-color: #f9f9f9;
}

/* Blockquotes */
blockquote {
    border-left: 4px solid var(--secondary-color);
    padding-left: 1rem;
    margin: 1rem 0;
    color: #666;
    font-style: italic;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem 0;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

footer a {
    color: white;
    text-decoration: none;
}

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

footer p {
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .site-title {
        font-size: 1.25rem;
    }
    
    header nav {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .content-container {
        padding: 0 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    table {
        font-size: 0.9rem;
    }
    
    th, td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    .site-title {
        font-size: 1.1rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.35rem;
    }
    
    h3 {
        font-size: 1.15rem;
    }
}