/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --accent-color: #2563eb;
    --secondary-color: #64748b;
    --border-color: #e2e8f0;
    --max-width: 800px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

/* Header with logo and banner */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
}

.header-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header-nav {
    display: flex;
    gap: 1.5rem;
    margin-left: auto;
}

.header-nav a {
    font-weight: 500;
    white-space: nowrap;
}

.logo {
    height: 60px;
    width: auto;
}

.banner {
    height: 60px;
    width: auto;
    flex-grow: 1;
    object-fit: contain;
    object-position: left center;
}


main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color);
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

p {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

/* Sections */
section {
    margin-bottom: 4rem;
}

#hero {
    margin-top: 4rem;
}

#hero h1 {
    margin-bottom: 1.5rem;
}

#hero p {
    font-size: 1.125rem;
    line-height: 1.7;
}

/* Lists */
ul, ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

/* Code blocks */
code {
    background-color: #f1f5f9;
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
}

pre {
    background-color: #f1f5f9;
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin-bottom: 1rem;
}

pre code {
    background-color: transparent;
    padding: 0;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    width: 80%;
    display: block;
    margin: 1rem 0;
}

/* Footer */
footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--secondary-color);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 640px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    #hero {
        margin-top: 2rem;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .header-nav {
        width: 100%;
        justify-content: flex-start;
        margin-left: 0;
    }

    .logo {
        height: 48px;
    }

    .banner {
        height: 48px;
        width: 100%;
    }
}