/* CSS Variables for Color Palette */
:root {
    --primary-bg: #2E3141;
    --accent-bg: #4A5C8E;
    --primary-text: #EAEAEA;
    --secondary-text: #A9ADB9;
    --link-color: #4A5C8E;
    --link-hover: #5A6CAE;
    --code-bg: #4A5C8E;
    --border-color: #3A3D4E;
}

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

html {
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    color: var(--secondary-text);
    background-color: var(--primary-bg);
    font-weight: 400;
    letter-spacing: -0.01em;
}

/* Layout */
.site-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    background-color: var(--primary-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 24px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 20px;
    font-weight: 600;
    text-decoration: none;
    color: var(--primary-text);
    letter-spacing: -0.02em;
    transition: color 0.2s ease;
}

.logo:hover {
    color: var(--secondary-text);
}

.nav-menu {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--secondary-text);
    font-weight: 400;
    font-size: 14px;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
    text-transform: uppercase;
}

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

/* Main content */
.main-content {
    flex: 1;
    padding: 64px 0;
}

/* Blog header */
.blog-header {
    margin-bottom: 80px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
}

.blog-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--primary-text);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.blog-description {
    font-size: 18px;
    color: var(--secondary-text);
    letter-spacing: -0.01em;
    line-height: 1.6;
}

/* Posts */
.posts {
    display: grid;
    gap: 64px;
}

.post-summary {
    padding: 32px;
    margin-bottom: 24px;
    background-color: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: border-color 0.2s ease;
}

.post-summary:hover {
    border-color: var(--accent-bg);
}

.post-summary:last-child {
    margin-bottom: 0;
}

.post-header {
    margin-bottom: 16px;
}

.post-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.post-title a {
    text-decoration: none;
    color: var(--primary-text);
    transition: color 0.2s ease;
}

.post-title a:hover {
    color: var(--link-hover);
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--secondary-text);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.post-tags {
    display: flex;
    gap: 16px;
}

.tag {
    color: var(--secondary-text);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tag-link {
    color: var(--link-color);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.post-summary-content {
    margin-bottom: 20px;
    color: var(--secondary-text);
    line-height: 1.6;
    font-size: 16px;
}

.post-footer {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-top: 16px;
}

.read-more {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
    padding: 8px 16px;
    border: 1px solid var(--link-color);
    border-radius: 4px;
    background: transparent;
}

.read-more:hover {
    color: var(--primary-text);
    background-color: var(--link-color);
}

/* Individual post */
.post {
    max-width: 100%;
}

.post .post-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
    letter-spacing: -0.03em;
    color: var(--primary-text);
}

.post-content {
    margin: 48px 0;
    line-height: 1.6;
    font-size: 16px;
    color: var(--secondary-text);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
    margin: 40px 0 20px 0;
    font-weight: 600;
    color: var(--primary-text);
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.post-content h1 {
    font-size: 32px;
}

.post-content h2 {
    font-size: 26px;
}

.post-content h3 {
    font-size: 22px;
}

.post-content p {
    margin-bottom: 20px;
    color: var(--secondary-text);
}

.post-content ul,
.post-content ol {
    margin: 20px 0;
    padding-left: 32px;
    color: var(--secondary-text);
}

.post-content li {
    margin-bottom: 8px;
    color: var(--secondary-text);
}

.post-content a {
    color: var(--link-color);
    text-decoration: none;
    border-bottom: 1px solid var(--link-color);
    transition: all 0.2s ease;
}

.post-content a:hover {
    color: var(--link-hover);
    border-bottom-color: var(--link-hover);
}

.post-content blockquote {
    margin: 32px 0;
    padding: 24px;
    border-left: 4px solid var(--accent-bg);
    background-color: transparent;
    font-style: italic;
    color: var(--primary-text);
    font-size: 18px;
    line-height: 1.6;
}

.post-content code {
    background-color: var(--code-bg);
    padding: 4px 8px;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 0.9em;
    color: var(--primary-text);
    border: 1px solid var(--border-color);
}

.post-content pre {
    background-color: var(--code-bg);
    padding: 24px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 32px 0;
    border: 1px solid var(--border-color);
    line-height: 1.5;
}

.post-content pre code {
    background-color: transparent;
    padding: 0;
    border: none;
    font-size: 14px;
}

.post-tags-footer {
    margin: 48px 0;
    padding: 24px;
    background-color: var(--accent-bg);
    border-radius: 8px;
}

.post-tags-footer strong {
    margin-right: 16px;
    color: var(--primary-text);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.post-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    gap: 24px;
}

.post-nav a {
    text-decoration: none;
    color: var(--link-color);
    font-weight: 500;
    max-width: 45%;
    font-size: 14px;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
    padding: 12px 16px;
    border: 1px solid var(--link-color);
    border-radius: 6px;
}

.post-nav a:hover {
    color: var(--primary-text);
    background-color: var(--link-color);
}

.post-nav-next {
    text-align: right;
}

/* Section page */
.section-header {
    margin-bottom: 64px;
    padding-bottom: 32px;
    border-bottom: 1px solid #000000;
}

.section-header h1 {
    font-size: 48px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.section-description {
    font-size: 18px;
    color: #000000;
    opacity: 0.7;
}

.subsections {
    margin-top: 64px;
}

.subsections h2 {
    font-size: 24px;
    margin-bottom: 32px;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.subsection-list {
    list-style: none;
    padding: 0;
}

.subsection-list li {
    margin-bottom: 16px;
}

.subsection-list a {
    text-decoration: none;
    color: #000000;
    font-weight: 500;
    transition: opacity 0.2s ease;
}

.subsection-list a:hover {
    opacity: 0.6;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 80px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.pagination-link {
    text-decoration: none;
    color: var(--link-color);
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
    padding: 10px 16px;
    border: 1px solid var(--link-color);
    border-radius: 6px;
}

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

.pagination-info {
    color: var(--secondary-text);
    font-size: 14px;
    font-weight: 500;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 48px 0;
    background-color: var(--accent-bg);
}

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

.footer-text {
    color: var(--primary-text);
    font-size: 14px;
    font-weight: 500;
}

.footer-tagline {
    color: var(--secondary-text);
    font-size: 14px;
    font-style: italic;
    font-weight: 400;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .site-header {
        padding: 20px 0;
    }

    .nav {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .nav-menu {
        gap: 20px;
    }

    .main-content {
        padding: 40px 0;
    }

    .blog-header {
        margin-bottom: 48px;
    }

    .blog-header h1 {
        font-size: 32px;
    }

    .posts {
        gap: 24px;
    }

    .post-summary {
        padding: 24px;
    }

    .post-title {
        font-size: 22px;
    }

    .post .post-title {
        font-size: 28px;
        margin-bottom: 20px;
    }

    .post-content {
        font-size: 16px;
        margin: 32px 0;
    }

    .post-content h1 {
        font-size: 24px;
    }

    .post-content h2 {
        font-size: 20px;
    }

    .post-content h3 {
        font-size: 18px;
    }

    .post-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .post-nav {
        flex-direction: column;
        gap: 16px;
        margin-top: 48px;
        padding-top: 24px;
    }

    .post-nav a {
        max-width: 100%;
        text-align: center;
    }

    .pagination {
        flex-direction: column;
        gap: 16px;
        text-align: center;
        margin-top: 48px;
        padding-top: 24px;
    }

    .footer-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .site-footer {
        padding: 32px 0;
    }

    .post-tags-footer {
        padding: 20px;
        margin: 32px 0;
    }
}

/* Additional responsive styles for larger screens */
@media (min-width: 1200px) {
    .container {
        max-width: 900px;
    }
}