:root {
    --primary: #00d4ff;
    --primary-dark: #00a8cc;
    --bg: #0a0e27;
    --bg-secondary: #151937;
    --bg-card: #1a1f3a;
    --text: #e8eaf0;
    --text-secondary: #a0a8c0;
    --border: #2a2f4a;
    --accent: #7c3aed;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

/* Header */
.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(21, 25, 55, 0.95);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text);
    font-family: 'Courier New', monospace;
}

.logo-bracket {
    color: var(--primary);
}

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

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg) 100%);
    padding: 6rem 0;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, transparent 0%, var(--primary) 50%, transparent 100%);
    opacity: 0.03;
    animation: scan 8s linear infinite;
}

@keyframes scan {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

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

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text);
}

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

.posts-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 3rem 0;
}

/* Post Card */
.post-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform 0.3s;
}

.post-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.15);
}

.post-card:hover::before {
    transform: scaleX(1);
}

.post-image {
    margin: -2rem -2rem 1.5rem -2rem;
    overflow: hidden;
    border-radius: 8px 8px 0 0;
}

.post-image img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    transition: transform 0.3s;
}

.post-card:hover .post-image img {
    transform: scale(1.05);
}

.post-meta {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.post-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.post-title a {
    color: var(--text);
    text-decoration: none;
    transition: color 0.3s;
}

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

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

.read-more {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.read-more:hover {
    color: var(--primary-dark);
}

/* Single Post */
.post-single {
    padding: 3rem 0;
    max-width: 800px;
    margin: 0 auto;
}

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

.post-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.tags {
    display: flex;
    gap: 0.5rem;
    margin-left: 1rem;
}

.tag {
    background: var(--bg-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--primary);
    border: 1px solid var(--border);
}

.post-content {
    font-size: 1.125rem;
    line-height: 1.8;
}

.post-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

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

.post-content code {
    background: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary);
}

.post-content pre {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 1px solid var(--border);
}

/* Page Header */
.page-header {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2.5rem;
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 1rem;
    }
}