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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --text-color: #1e293b;
    --text-light: #64748b;
    --heading-color: #1e293b;
    --bg-color: #ffffff;
    --bg-secondary: #f8fafc;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --border-radius: 0.5rem;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-mono: 'SFMono-Regular', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    --success-bg: #dcfce7;
    --success-text: #166534;
    --info-bg: #dbeafe;
    --info-text: #1e40af;
    --warning-bg: #fef3c7;
    --warning-text: #b45309;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background-color: rgba(255, 255, 255, 0.95);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-color);
    transition: all 0.3s ease;
}

/* Main content */
main {
    min-height: calc(100vh - 80px);
    padding: 2rem 0;
}

/* Hero section */
.hero {
    text-align: center;
    padding: 4rem 0;
    margin-bottom: 3rem;
}

.hero-logo {
    margin-bottom: 2rem;
}

.logo-image {
    max-width: 480px;
    height: auto;
    max-height: 300px;
    object-fit: contain;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Section titles */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-color);
}

/* Blog posts */
.blog-posts {
    margin-bottom: 4rem;
}

.posts-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 3rem;
}

.post-card {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: all 0.2s ease;
}

.post-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.post-title {
    margin-bottom: 1rem;
}

.post-title a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.post-tags {
    display: flex;
    gap: 0.5rem;
}

.tag {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.tech-tag {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.tech-more {
    color: var(--text-light);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
}

.post-excerpt {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.read-more:hover {
    color: #1d4ed8;
}

/* Single post */
.single-post {
    max-width: 800px;
    margin: 0 auto;
}

.post-header {
    margin-bottom: 3rem;
    text-align: center;
}

.post-header .post-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.post-content {
    max-width: none;
    margin-bottom: 3rem;
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
    color: var(--text-color);
    font-weight: 700;
    line-height: 1.3;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.post-content h2 {
    font-size: 1.875rem;
}

.post-content h3 {
    font-size: 1.5rem;
}

.post-content p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

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

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

.post-content code {
    background-color: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.post-content pre {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    white-space: pre-wrap;
    word-break: break-word;
    max-width: 100%;
    box-sizing: border-box;
}

.post-content pre code {
    background: none;
    padding: 0;
}

.post-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-light);
}

.post-content ul,
.post-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.post-content li {
    margin-bottom: 0.5rem;
}

.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.nav-prev,
.nav-next {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
    flex: 1;
    text-align: center;
}

.nav-prev:hover,
.nav-next:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* About page */
.about-page {
    max-width: 1000px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 4rem;
    align-items: start;
}

.about-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.about-description {
    line-height: 1.7;
    color: var(--text-color);
}

.about-description p {
    margin-bottom: 1.5rem;
}

.about-image {
    text-align: center;
}

.profile-image {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-lg);
}

.profile-placeholder {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    font-weight: 800;
    margin: 0 auto;
}

/* Code page */
.code-page {
    max-width: 1000px;
    margin: 0 auto;
}

.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.page-description {
    color: var(--text-light);
    font-size: 1.125rem;
    line-height: 1.7;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: all 0.2s ease;
}

.project-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.project-card .project-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1.25rem;
}

.project-card .project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0;
}

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

.project-card .project-title a:hover {
    color: var(--primary-color);
}

.project-excerpt {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    font-size: 0.95rem;
}

.project-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--primary-color);
    border-radius: 0.25rem;
    transition: all 0.2s ease;
}

.project-link:hover {
    background-color: var(--primary-color);
    color: white;
}

.project-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

/* Project Detail Pages */
.project-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.project-detail .project-header {
    text-align: left;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.project-detail .project-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--heading-color);
}

.project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

.project-status {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.status-active {
    background-color: var(--success-bg);
    color: var(--success-text);
}

.status-completed {
    background-color: var(--info-bg);
    color: var(--info-text);
}

.status-archived {
    background-color: var(--warning-bg);
    color: var(--warning-text);
}

.project-description {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.project-links {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.project-link.github {
    background-color: #24292e;
    color: white;
}

.project-link.github:hover {
    background-color: #1a1e22;
    transform: translateY(-2px);
}

.project-link.demo {
    background-color: var(--primary-color);
    color: white;
}

.project-link.demo:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

.project-technologies {
    margin-top: 2rem;
}

.project-technologies h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--heading-color);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background-color: var(--bg-secondary);
    color: var(--text-color);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.project-footer-content {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.project-content {
    line-height: 1.8;
    color: var(--text-color);
}

.project-content pre {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    white-space: pre-wrap;
    word-break: break-word;
    max-width: 100%;
    box-sizing: border-box;
}

.project-content pre code {
    background: none;
    padding: 0;
}

.project-content code {
    background-color: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.project-content h2 {
    font-size: 1.875rem;
    font-weight: 700;
    margin: 2.5rem 0 1rem 0;
    color: var(--heading-color);
}

.project-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2rem 0 1rem 0;
    color: var(--heading-color);
}

.project-content img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
    margin: 2rem 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.project-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.project-navigation {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.nav-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.back-to-projects {
    text-align: center;
}

.back-link {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-light);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* Responsive design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-color);
        border: 1px solid var(--border-color);
        border-top: none;
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2rem;
    }

    .logo-image {
        max-width: 320px;
        max-height: 120px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .about-image {
        order: -1;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

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

    .post-navigation {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .project-detail .project-title {
        font-size: 2rem;
    }
    
    .project-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .project-links {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .project-link {
        width: auto;
        max-width: 200px;
        justify-content: center;
    }
    
    .tech-tags {
        justify-content: flex-start;
    }
    
    .project-navigation {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Utility classes */
.no-posts,
.no-projects {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-light);
    font-size: 1.125rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 3rem 0;
}

.pagination a,
.pagination span {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.2s ease;
}

.pagination a:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination .active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Dark mode status colors */
@media (prefers-color-scheme: dark) {
    :root {
        --success-bg: #166534;
        --success-text: #dcfce7;
        --info-bg: #1e40af;
        --info-text: #dbeafe;
        --warning-bg: #b45309;
        --warning-text: #fef3c7;
    }
}