:root {
    --bg-dark: #0d1117;
    --bg-card: #161b22;
    --border: #30363d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-green: #7ee787;
    --accent-blue: #79c0ff;
    --accent-purple: #d2a8ff;
    --accent-yellow: #e3b341;
    --accent-red: #f85149;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Monaco, monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Terminal Header */
.terminal-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.terminal-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-green);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: '❯';
    color: var(--accent-blue);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    position: relative;
}

.nav-links a:hover {
    color: var(--accent-green);
}

.nav-links a::before {
    content: '# ';
    color: var(--accent-purple);
    opacity: 0;
    transition: opacity 0.2s;
}

.nav-links a:hover::before {
    opacity: 1;
}

/* Main Content */
main {
    padding: 3rem 0;
}

/* Post Cards */
.post-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.2s, border-color 0.2s;
}

.post-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-green);
}

.post-meta {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.post-meta .category {
    color: var(--accent-blue);
}

.post-meta .date::before {
    content: '📅 ';
}

.post-card h2 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.post-card h2 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.post-card h2 a:hover {
    color: var(--accent-green);
}

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

.read-more {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-green);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.read-more::after {
    content: ' →';
    transition: transform 0.2s;
}

.read-more:hover::after {
    transform: translateX(4px);
}

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

.post-header h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.featured-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 2rem;
    border: 1px solid var(--border);
}

.post-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

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

.post-content h2, .post-content h3 {
    margin: 2rem 0 1rem;
    color: var(--accent-blue);
}

.post-content code {
    background: rgba(110, 118, 129, 0.4);
    padding: 0.2em 0.4em;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.post-content pre {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

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

.post-content img {
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border);
}

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

/* Category Page */
.page-title {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    font-family: var(--font-mono);
}

.page-title span {
    color: var(--accent-yellow);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.empty-state::before {
    content: '>_';
    display: block;
    font-size: 3rem;
    color: var(--accent-green);
    margin-bottom: 1rem;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 600px) {
    .terminal-nav {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .post-header h1 {
        font-size: 1.5rem;
    }
    
    .post-card {
        padding: 1rem;
    }
}

/* Admin Styles */
.admin-body {
    background: var(--bg-dark);
}

.admin-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.admin-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.admin-nav a:hover, .admin-nav a.active {
    color: var(--accent-green);
    border-bottom-color: var(--accent-green);
}

.admin-main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.admin-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-card h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-blue);
}

textarea.form-control {
    min-height: 400px;
    font-family: var(--font-mono);
    line-height: 1.6;
}

select.form-control {
    cursor: pointer;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-green);
    color: var(--bg-dark);
    font-weight: 600;
}

.btn-primary:hover {
    background: #56d364;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-dark);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.btn-danger {
    background: var(--accent-red);
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* Table Styles */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th {
    text-align: left;
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

.data-table tr:hover td {
    background: rgba(110, 118, 129, 0.1);
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 600;
}

.status-published {
    background: rgba(126, 231, 135, 0.1);
    color: var(--accent-green);
}

.status-draft {
    background: rgba(139, 148, 158, 0.1);
    color: var(--text-secondary);
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.login-box h1 {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--accent-green);
}

.login-box p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-error {
    background: rgba(248, 81, 73, 0.1);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
}

.alert-success {
    background: rgba(126, 231, 135, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

/* Editor Toolbar */
.editor-toolbar {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    padding: 0.5rem;
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.editor-btn {
    background: none;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    transition: all 0.2s;
}

.editor-btn:hover {
    background: var(--bg-card);
    border-color: var(--border);
    color: var(--text-primary);
}

.editor-content {
    border-radius: 0 0 8px 8px !important;
    min-height: 400px !important;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-green);
    font-family: var(--font-mono);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    font-family: var(--font-mono);
}

/* Image Upload */
.image-preview {
    max-width: 300px;
    max-height: 200px;
    border-radius: 8px;
    border: 1px solid var(--border);
    margin-top: 0.5rem;
}

.upload-hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}