/* CryptoOpening Hugo Theme - Modern Crypto News Design */

:root {
    /* Dark theme - Crypto aesthetic */
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a1f2e;
    --bg-card-hover: #232a3d;
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --accent-primary: #00d4aa;
    --accent-secondary: #7c3aed;
    --accent-bitcoin: #f7931a;
    --accent-ethereum: #627eea;
    
    --border-color: #2d3748;
    --shadow-color: rgba(0, 0, 0, 0.3);
    
    --font-heading: 'Outfit', 'SF Pro Display', -apple-system, sans-serif;
    --font-body: 'DM Sans', 'SF Pro Text', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --container-max: 1280px;
    --content-max: 800px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    background-image: 
        radial-gradient(ellipse at 20% 0%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(124, 58, 237, 0.08) 0%, transparent 50%);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 23, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

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

.site-branding {
    display: flex;
    align-items: center;
}

.site-logo img {
    height: 40px;
    width: auto;
}

.site-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-navigation .nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.menu-item a {
    display: block;
    padding: 0.75rem 1.25rem;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.menu-item a:hover,
.menu-item.current a {
    color: var(--text-primary);
    background: var(--bg-card);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    left: 0;
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

/* Main Content */
.main-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 3rem 2rem;
    min-height: calc(100vh - 200px);
}

/* Page Header */
.page-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Posts Grid */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

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

.post-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px var(--shadow-color);
    border-color: var(--accent-primary);
}

.post-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-content {
    padding: 1.5rem;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
}

.post-category a {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.post-date {
    color: var(--text-muted);
}

.post-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

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

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

.post-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    display: inline-flex;
    align-items: center;
    font-weight: 600;
    color: var(--accent-primary);
    font-size: 0.9rem;
}

.read-more:hover {
    color: var(--accent-secondary);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.pagination a {
    padding: 0.75rem 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    font-weight: 600;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

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

.pagination-info {
    color: var(--text-muted);
}

/* Single Post */
.single-post {
    max-width: var(--content-max);
    margin: 0 auto;
}

.single-post .post-header {
    text-align: center;
    margin-bottom: 2rem;
}

.single-post .post-meta {
    justify-content: center;
    margin-bottom: 1.5rem;
}

.single-post .post-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.single-post .post-excerpt {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.post-featured-image {
    margin: 2rem 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.post-featured-image img {
    width: 100%;
}

/* Photo credit / caption styling */
.photo-credit {
    display: block;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

/* Post Content Styles */
.post-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.post-content h2 {
    margin: 2.5rem 0 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.post-content h3 {
    margin: 2rem 0 0.75rem;
}

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

.post-content img {
    margin: 2rem auto;
    border-radius: var(--radius-md);
}

.post-content a {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.post-content blockquote {
    margin: 2rem 0;
    padding: 1.5rem 2rem;
    background: var(--bg-card);
    border-left: 4px solid var(--accent-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
}

.post-content code {
    font-family: var(--font-mono);
    background: var(--bg-card);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

.post-content pre {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 2rem 0;
}

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

.post-content ul, .post-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.post-content li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

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

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.tags-label {
    color: var(--text-muted);
    font-weight: 600;
    margin-right: 0.5rem;
}

.tag-link {
    background: var(--bg-card);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.tag-link:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
}

/* Share Buttons */
.share-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

.share-label {
    color: var(--text-muted);
    font-weight: 600;
}

.share-buttons a {
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
}

.share-buttons a:hover {
    background: var(--bg-card-hover);
}

/* Post Navigation */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.post-navigation a {
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.post-navigation a:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
}

.nav-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.nav-title {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
}

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

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

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 3rem 2rem;
}

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

.footer-widget h3 {
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
    color: var(--accent-primary);
}

.footer-widget p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-widget ul {
    list-style: none;
}

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

.footer-widget a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-widget a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .main-navigation {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        display: none;
    }
    
    .main-navigation.active {
        display: block;
    }
    
    .main-navigation .nav-menu {
        flex-direction: column;
        padding: 1rem;
    }
    
    .main-content {
        padding: 2rem 1rem;
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .single-post .post-title {
        font-size: 1.75rem;
    }
    
    .post-navigation {
        grid-template-columns: 1fr;
    }
    
    .footer-widgets {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.post-card {
    animation: fadeIn 0.5s ease forwards;
}

.posts-grid .post-card:nth-child(1) { animation-delay: 0.1s; }
.posts-grid .post-card:nth-child(2) { animation-delay: 0.2s; }
.posts-grid .post-card:nth-child(3) { animation-delay: 0.3s; }
.posts-grid .post-card:nth-child(4) { animation-delay: 0.4s; }
.posts-grid .post-card:nth-child(5) { animation-delay: 0.5s; }
.posts-grid .post-card:nth-child(6) { animation-delay: 0.6s; }