/* GammaLedger Blog - Shared Styles */

/* Design System Variables */
:root {
    --bg-primary: #0a0b1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-card: rgba(15, 23, 42, 0.8);

    --purple-500: #8b5cf6;
    --purple-600: #a855f7;
    --blue-500: #3b82f6;
    --blue-600: #6366f1;

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;

    --gradient-primary: linear-gradient(135deg, var(--purple-500), var(--blue-500));

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

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

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

/* Navigation */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 11, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--purple-500);
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(139, 92, 246, 0.3);
}

/* Hero Section */
.hero {
    padding: 4rem 0 2rem;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Filter Section */
.filter-section {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-tag {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.filter-tag:hover,
.filter-tag.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    padding-bottom: 4rem;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid rgba(139, 92, 246, 0.1);
    border-radius: 1rem;
    padding: 0;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-primary);
    display: block;
    overflow: hidden;
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: var(--purple-500);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.2);
}

.blog-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.blog-card-content {
    padding: 2rem;
}

.blog-card-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.blog-card-content h2 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.blog-card-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

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

.tag {
    padding: 0.25rem 0.75rem;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 1rem;
    font-size: 0.75rem;
    color: var(--purple-500);
}

/* Footer */
.footer {
    background: var(--bg-primary);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--purple-500);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Article View Styles */
.article-container {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.article-header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid rgba(139, 92, 246, 0.2);
}

.article-featured-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 1rem;
    margin-bottom: 2rem;
}

.article-title {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.article-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

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

/* Back to Blog link */
.back-to-blog {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--purple-500);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 2rem;
    transition: color 0.3s ease;
}

.back-to-blog:hover {
    color: var(--purple-600);
}

/* Markdown Content Styles */
.article-content {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content h1 {
    font-size: 2rem;
    color: var(--text-primary);
    margin: 2.5rem 0 1rem;
    font-weight: 700;
}

.article-content h2 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin: 2rem 0 1rem;
    font-weight: 700;
    border-bottom: 2px solid rgba(139, 92, 246, 0.2);
    padding-bottom: 0.5rem;
}

.article-content h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin: 1.5rem 0 0.75rem;
    font-weight: 600;
}

.article-content h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: 1.25rem 0 0.5rem;
    font-weight: 600;
}

.article-content p {
    margin-bottom: 1.25rem;
}

.article-content a {
    color: var(--purple-500);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.article-content a:hover {
    border-bottom-color: var(--purple-500);
}

.article-content ul,
.article-content ol {
    margin: 1rem 0 1.5rem 2rem;
}

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

.article-content code {
    background: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-size: 0.9em;
    font-family: 'Courier New', monospace;
}

.article-content pre {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

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

.article-content blockquote {
    border-left: 4px solid var(--purple-500);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-style: italic;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.article-content th,
.article-content td {
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 0.75rem;
    text-align: left;
}

.article-content th {
    background: var(--bg-secondary);
    font-weight: 600;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
    margin: 1.5rem 0;
}

/* Article Disclaimer */
.article-disclaimer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(139, 92, 246, 0.2);
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    font-style: italic;
}

.article-disclaimer hr {
    border: none;
    border-top: 1px solid rgba(139, 92, 246, 0.2);
    margin: 0 0 1.5rem 0;
}

.article-disclaimer strong {
    color: var(--text-secondary);
}

.article-disclaimer a {
    color: var(--purple-500);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.article-disclaimer a:hover {
    border-bottom-color: var(--purple-500);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

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

    .nav-links {
        gap: 1rem;
    }

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

    .article-content {
        font-size: 1rem;
    }
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}