/* OpenClaw Blog - Main Styles */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #10b981;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --radius: 8px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary-color: #818cf8;
    --primary-dark: #6366f1;
    --secondary-color: #34d399;
    --text-color: #f9fafb;
    --text-light: #d1d5db;
    --bg-color: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --border-color: #4b5563;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(var(--bg-color-rgb), 0.9);
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 0;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    transform: translateY(-2px);
}

/* Posts Section */
.posts-section {
    padding: 4rem 0;
}

.posts-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.post-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.post-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.post-content {
    padding: 1.5rem;
}

.post-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.post-category {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.post-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

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

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.read-more:hover {
    text-decoration: underline;
}

/* About Section */
.about-section {
    padding: 4rem 0;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    margin: 2rem 0;
}

.about-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

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

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--bg-color);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.feature i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.feature p {
    font-size: 0.875rem;
    color: var(--text-light);
}

.code-snippet {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
}

.code-snippet pre {
    margin: 0;
    overflow-x: auto;
}

.code-snippet code {
    color: var(--text-color);
}

/* Contact Section */
.contact-section {
    padding: 4rem 0;
    text-align: center;
}

.contact-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-section p {
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.contact-link i {
    font-size: 1.25rem;
}

/* Footer */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    margin-top: 4rem;
}

.footer-content {
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-text {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.copyright {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-link {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }

/* Blog Post Pages */
.blog-post {
    max-width: 800px;
    margin: 3rem auto;
    padding: 2rem;
    background-color: var(--bg-color);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

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

.post-header .post-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 1rem 0;
    color: var(--text-color);
    line-height: 1.2;
}

.post-header .post-excerpt {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.post-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.post-author i {
    color: var(--primary-color);
}

.post-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-color);
}

.post-content h2 {
    font-size: 1.75rem;
    margin: 2.5rem 0 1rem;
    color: var(--text-color);
}

.post-content h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--text-color);
}

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

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

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

.post-content code {
    background-color: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
}

.post-content pre {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius);
    padding: 1.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 1px solid var(--border-color);
}

.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;
    color: var(--text-light);
    font-style: italic;
}

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

.post-tags {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.post-tags i {
    color: var(--primary-color);
}

.tag {
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--text-color);
}

.post-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.related-posts {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.related-posts h2 {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    text-align: center;
}

/* Responsive adjustments for blog posts */
@media (max-width: 768px) {
    .blog-post {
        padding: 1.5rem;
        margin: 2rem auto;
    }
    
    .post-header .post-title {
        font-size: 2rem;
    }
    
    .post-header .post-excerpt {
        font-size: 1.125rem;
    }
    
    .post-content {
        font-size: 1rem;
    }
    
    .post-content h2 {
        font-size: 1.5rem;
    }
    
    .post-content h3 {
        font-size: 1.25rem;
    }
    
    .post-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .post-actions .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

/* Post Modal */
.post-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background-color: var(--bg-color);
    border-radius: var(--radius);
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    z-index: 1001;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-color);
}

.modal-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 1rem 0;
    color: var(--text-color);
}

.modal-excerpt {
    font-size: 1.125rem;
    color: var(--text-light);
    line-height: 1.6;
}

.modal-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.modal-body h1,
.modal-body h2,
.modal-body h3 {
    margin: 1.5rem 0 1rem;
    color: var(--text-color);
}

.modal-body h1 { font-size: 1.75rem; }
.modal-body h2 { font-size: 1.5rem; }
.modal-body h3 { font-size: 1.25rem; }

.modal-body p {
    margin-bottom: 1rem;
}

.modal-body ul,
.modal-body ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.modal-body li {
    margin-bottom: 0.5rem;
}

.modal-body code {
    background-color: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
}

.modal-body pre {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius);
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
    border: 1px solid var(--border-color);
}

.modal-body pre code {
    background: none;
    padding: 0;
}

.modal-body a {
    color: var(--primary-color);
    text-decoration: none;
}

.modal-body a:hover {
    text-decoration: underline;
}

.modal-footer {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.error-message {
    text-align: center;
    padding: 2rem;
    color: var(--text-light);
}

.error-message p {
    margin-bottom: 0.5rem;
}

/* Responsive modal */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        padding: 1.5rem;
    }
    
    .modal-title {
        font-size: 1.5rem;
    }
    
    .modal-excerpt {
        font-size: 1rem;
    }
    
    .modal-body {
        font-size: 1rem;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .btn {
        width: 100%;
        justify-content: center;
    }
}