/* 
 * DFIR Blog CMS - Dark Hacker Theme
 * Terminal-inspired, cyber aesthetic
 */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --bg-primary: #0a0e14;
    --bg-secondary: #0d1117;
    --bg-tertiary: #161b22;
    --bg-card: #0d1117;
    
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-dim: #484f58;
    
    --accent-green: #00ff9f;
    --accent-cyan: #00d4ff;
    --accent-purple: #a855f7;
    --accent-red: #ff3e3e;
    --accent-yellow: #ffc800;
    --accent-orange: #ff7b00;
    
    --border-color: #21262d;
    --border-glow: rgba(0, 255, 159, 0.3);
    
    /* Typography */
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --font-sans: 'Space Grotesk', system-ui, -apple-system, sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --container-narrow: 800px;
    
    /* Effects */
    --glow-green: 0 0 20px rgba(0, 255, 159, 0.4);
    --glow-cyan: 0 0 20px rgba(0, 212, 255, 0.4);
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ===== Scanlines Effect ===== */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.1) 0px,
        rgba(0, 0, 0, 0.1) 1px,
        transparent 1px,
        transparent 2px
    );
    opacity: 0.15;
}

/* ===== Matrix Background ===== */
#matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.05;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.container-narrow {
    max-width: var(--container-narrow);
}

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

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.logo:hover {
    color: var(--accent-green);
    text-shadow: var(--glow-green);
}

.logo-icon {
    color: var(--accent-green);
    animation: blink 1s step-end infinite;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--accent-green);
    background: rgba(0, 255, 159, 0.1);
}

/* Nav Search */
.nav-search {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    transition: all 0.2s ease;
}

.nav-search:focus-within {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
}

.nav-search-input {
    background: transparent;
    border: none;
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    width: 160px;
    transition: width 0.2s ease;
}

.nav-search-input:focus {
    outline: none;
    width: 200px;
}

.nav-search-input::placeholder {
    color: var(--text-dim);
}

.nav-search-btn {
    background: transparent;
    border: none;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
}

.nav-search-btn:hover {
    color: var(--accent-cyan);
}

.nav-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 10px var(--accent-green);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-menu-btn:hover {
    border-color: var(--accent-cyan);
}

.hamburger-line {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 20, 0.98);
    z-index: 99;
    padding-top: 80px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    max-width: 400px;
    margin: 0 auto;
    padding: 2rem;
}

.mobile-search {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.mobile-search-input {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.875rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1rem;
}

.mobile-search-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

.mobile-search-btn {
    background: var(--accent-green);
    border: none;
    border-radius: 6px;
    padding: 0 1.25rem;
    color: var(--bg-primary);
    font-family: var(--font-mono);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-search-btn:hover {
    opacity: 0.9;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-mono);
    transition: all 0.2s ease;
}

.mobile-nav-link:hover {
    border-color: var(--accent-cyan);
    background: var(--bg-tertiary);
}

.mobile-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ===== Hero Section ===== */
.hero {
    padding: 4rem 0;
    position: relative;
}

.hero-content {
    margin-bottom: 2rem;
}

.hero-terminal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.terminal-header {
    background: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
    margin-left: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
}

.typing-text {
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.prompt {
    color: var(--accent-green);
}

.command {
    color: var(--accent-cyan);
}

.terminal-output h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.hero-description {
    color: var(--text-secondary);
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    padding-top: 1rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    font-family: var(--font-mono);
}

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

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* ===== Glitch Effect ===== */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
}

.glitch::before {
    color: var(--accent-cyan);
    animation: glitch-1 2s infinite linear alternate-reverse;
    clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.glitch::after {
    color: var(--accent-red);
    animation: glitch-2 3s infinite linear alternate-reverse;
    clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-2px); }
    40% { transform: translateX(2px); }
    60% { transform: translateX(-1px); }
    80% { transform: translateX(1px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(2px); }
    40% { transform: translateX(-2px); }
    60% { transform: translateX(1px); }
    80% { transform: translateX(-1px); }
}

/* ===== Articles Section ===== */
.articles-section {
    padding: 4rem 0;
}

.section-header {
    margin-bottom: 3rem;
}

.section-title {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.title-icon {
    color: var(--accent-green);
}

.section-line {
    height: 1px;
    background: linear-gradient(90deg, var(--accent-green), transparent);
    margin-top: 1rem;
}

/* ===== Article Cards ===== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card:hover {
    border-color: rgba(0, 255, 159, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.article-card:hover .card-glow {
    opacity: 0.15;
}

.card-glow {
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    opacity: 0;
    z-index: -1;
    border-radius: 8px;
    filter: blur(20px);
    transition: opacity 0.3s ease;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.card-index {
    color: var(--accent-green);
}

.card-date {
    color: var(--text-secondary);
}

.card-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .card-image img {
    transform: scale(1.02);
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 50%, var(--bg-card));
}

.card-content {
    padding: 1.25rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

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

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

.card-excerpt {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.card-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-green);
    text-decoration: none;
    transition: all 0.3s ease;
}

.read-more:hover {
    text-shadow: var(--glow-green);
}

.read-more-arrow {
    transition: transform 0.3s ease;
}

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

/* ===== No Articles ===== */
.no-articles {
    text-align: center;
    padding: 3rem;
}

.terminal-block {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    font-family: var(--font-mono);
    text-align: left;
    display: inline-block;
}

.terminal-block .output {
    color: var(--text-secondary);
    margin-left: 1rem;
}

.terminal-block .dim {
    color: var(--text-dim);
}

/* ===== Single Article ===== */
.article-single {
    padding: 3rem 0 5rem;
}

.article-header {
    margin-bottom: 3rem;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--accent-green);
}

.meta-info {
    color: var(--text-secondary);
}

.meta-info .separator {
    margin: 0 0.5rem;
    color: var(--text-dim);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.article-excerpt {
    font-size: 1.2rem;
    color: var(--text-secondary);
    border-left: 3px solid var(--accent-green);
    padding-left: 1rem;
}

.article-featured-image {
    margin: 2rem 0 3rem;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.article-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.image-scanline {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-green);
    opacity: 0.5;
    animation: scanline 4s linear infinite;
}

@keyframes scanline {
    0% { top: 0; }
    100% { top: 100%; }
}

/* ===== Article Content (Prose) ===== */
.prose {
    font-size: 1.1rem;
    line-height: 1.8;
}

.prose h1, .prose h2, .prose h3, .prose h4 {
    font-family: var(--font-sans);
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.prose h1 { font-size: 2rem; }
.prose h2 { font-size: 1.5rem; color: var(--accent-cyan); }
.prose h3 { font-size: 1.25rem; }

.prose p {
    margin-bottom: 1.5rem;
}

.prose a {
    color: var(--accent-cyan);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.3s ease;
}

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

.prose img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin: 2rem 0;
}

.prose pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 2rem 0;
    position: relative;
}

.prose pre::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
}

.prose code {
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.prose :not(pre) > code {
    background: var(--bg-tertiary);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    color: var(--accent-cyan);
}

.prose blockquote {
    border-left: 3px solid var(--accent-green);
    padding-left: 1.5rem;
    margin: 2rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

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

.prose li {
    margin-bottom: 0.5rem;
}

.prose li::marker {
    color: var(--accent-green);
}

.prose hr {
    border: none;
    height: 1px;
    background: var(--border-color);
    margin: 3rem 0;
}

.prose strong {
    color: var(--accent-green);
    font-weight: 600;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.pagination-info {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.pagination-btn:hover:not(.disabled) {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.05);
}

.pagination-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-btn .btn-icon {
    font-size: 1rem;
}

.pagination-pages {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.page-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.page-num:hover:not(.active) {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.page-num.active {
    background: var(--accent-green);
    border-color: var(--accent-green);
    color: var(--bg-primary);
    font-weight: 600;
}

/* ===== Article Footer ===== */
.article-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-terminal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

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

.footer-terminal .output {
    color: var(--text-secondary);
    margin-left: 1rem;
}

.share-section {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.share-label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.share-buttons {
    display: flex;
    gap: 0.5rem;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.share-btn:hover {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
}

.back-home {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    color: var(--accent-green);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--accent-green);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.back-home:hover {
    background: var(--accent-green);
    color: var(--bg-primary);
    box-shadow: var(--glow-green);
}

/* ===== Footer ===== */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: auto;
}

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

.footer-text {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.terminal-prompt {
    color: var(--accent-green);
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.footer-author {
    margin-top: 0.75rem;
}

.footer-author a {
    color: var(--accent-cyan);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

.footer-author a:hover {
    color: var(--accent-green);
    text-decoration: underline;
}

/* ===== 404 Page ===== */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.error-container {
    text-align: center;
    padding: 2rem;
}

.error-code {
    font-family: var(--font-mono);
    font-size: 8rem;
    font-weight: 700;
    color: var(--accent-red);
    line-height: 1;
    margin-bottom: 2rem;
}

.error-terminal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    text-align: left;
    max-width: 500px;
    margin: 0 auto 2rem;
}

.error-output {
    color: var(--accent-red);
    margin-left: 1rem;
}

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

.error-message {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.error-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    color: var(--accent-green);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--accent-green);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.error-button:hover {
    background: var(--accent-green);
    color: var(--bg-primary);
}

/* ===== Animations ===== */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.blink {
    animation: blink 1s step-end infinite;
}

.cursor {
    display: inline-block;
}

/* ===== Search Page ===== */
.search-page {
    padding: 3rem 0;
    min-height: 70vh;
}

.search-header {
    margin-bottom: 2rem;
}

.search-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.search-icon {
    font-size: 1.5rem;
}

.search-form-large {
    margin-bottom: 1rem;
}

.search-input-wrapper {
    display: flex;
    gap: 0.5rem;
    max-width: 600px;
}

.search-input-large {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.search-input-large:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.search-submit-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-green);
    border: none;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    color: var(--bg-primary);
    font-family: var(--font-mono);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.search-submit-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.search-meta {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.search-term {
    color: var(--accent-cyan);
}

.search-empty {
    max-width: 500px;
}

.search-results {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-result-card {
    display: flex;
    gap: 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    transition: all 0.2s ease;
    animation: fadeInUp 0.3s ease forwards;
    opacity: 0;
}

.search-result-card:hover {
    border-color: rgba(0, 255, 159, 0.3);
}

.result-image {
    width: 120px;
    height: 80px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
}

.result-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.result-content {
    flex: 1;
    min-width: 0;
}

.result-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.result-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.result-title a:hover {
    color: var(--accent-cyan);
}

.result-excerpt {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.result-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.result-meta time {
    color: var(--text-dim);
}

.result-link {
    color: var(--accent-green);
    text-decoration: none;
}

.result-link:hover {
    text-decoration: underline;
}

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

/* ===== Tags ===== */
.tag-page {
    padding: 3rem 0;
    min-height: 70vh;
}

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

.tag-badge-large {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--accent-green);
    border-radius: 50px;
    padding: 1rem 2rem;
    margin-bottom: 0.75rem;
}

.tag-icon {
    font-size: 1.5rem;
}

.tag-name {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-green);
}

.tag-count {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.all-tags {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 2rem;
}

.tags-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 0.4rem 0.875rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tag-pill:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.tag-pill.active {
    background: var(--accent-green);
    border-color: var(--accent-green);
    color: var(--bg-primary);
}

.tag-count-badge {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 0.1rem 0.4rem;
    font-size: 0.7rem;
}

.tag-pill.active .tag-count-badge {
    background: rgba(0, 0, 0, 0.3);
}

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

/* Card tags */
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 0.75rem;
}

.card-tag {
    display: inline-block;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.card-tag:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* Article page tags */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.article-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.35rem 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.article-tag:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.article-tag::before {
    content: '#';
    color: var(--accent-green);
}

/* ===== Copy Code Button ===== */
.code-copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.4rem 0.6rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s ease;
    z-index: 10;
}

.code-terminal:hover .code-copy-btn {
    opacity: 1;
}

.code-copy-btn:hover {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
}

.code-copy-btn.copied {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
}

/* ===== Table of Contents ===== */
.toc-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 2rem;
}

.toc-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-green);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.toc-list {
    list-style: none;
}

.toc-list li {
    margin-bottom: 0.5rem;
}

.toc-list a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.25rem 0;
    transition: color 0.2s ease;
}

.toc-list a:hover {
    color: var(--accent-cyan);
}

.toc-list a::before {
    content: '→';
    color: var(--text-dim);
    font-size: 0.75rem;
}

.toc-list .toc-h3 {
    padding-left: 1rem;
    font-size: 0.85rem;
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 90;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
    box-shadow: var(--glow-green);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* ===== About Page ===== */
.about-page {
    padding: 3rem 0 5rem;
}

.about-header {
    margin-bottom: 3rem;
}

.about-terminal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.about-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    position: relative;
}

.profile-avatar {
    margin-bottom: 1.5rem;
}

.avatar-frame {
    position: relative;
    width: 120px;
    height: 120px;
}

.avatar-placeholder {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-primary));
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.avatar-image {
    width: 120px;
    height: 120px;
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    object-fit: cover;
    position: relative;
    z-index: 1;
}

.avatar-icon {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-green);
    animation: blink 1s step-end infinite;
}

.avatar-glow {
    position: absolute;
    inset: -4px;
    background: var(--accent-green);
    border-radius: 50%;
    opacity: 0.2;
    filter: blur(15px);
    animation: pulse 2s ease-in-out infinite;
}

.profile-name {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.profile-title {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.profile-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.about-section {
    margin-bottom: 3rem;
}

.about-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
}

.about-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-content p:last-child {
    margin-bottom: 0;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.skill-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.skill-card:hover {
    border-color: rgba(0, 255, 159, 0.4);
    transform: translateY(-2px);
}

.skill-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    color: var(--accent-cyan);
}

.skill-icon svg {
    width: 32px;
    height: 32px;
}

.skill-title {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-green);
    margin-bottom: 0.5rem;
}

.skill-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Tools Terminal */
.tools-terminal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.tools-terminal .terminal-body {
    padding: 1.25rem 1.5rem;
}

.tool-category {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.tool-category:last-child {
    margin-bottom: 0;
}

.tool-category .output {
    color: var(--accent-cyan);
    min-width: 140px;
}

.tool-list {
    color: var(--text-secondary);
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.contact-icon {
    font-size: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon svg {
    width: 28px;
    height: 28px;
    color: var(--accent-cyan);
}

.contact-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.contact-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-cyan);
    text-align: center;
}

/* About Footer */
.about-footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.about-footer .footer-terminal {
    display: inline-block;
    text-align: left;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    /* Mobile menu visible */
    .mobile-menu-btn {
        display: flex;
    }
    
    .main-nav {
        display: none;
    }
    
    .nav-link {
        display: none;
    }
    
    .mobile-menu-overlay {
        display: block;
    }
    
    .search-result-card {
        flex-direction: column;
    }
    
    .result-image {
        width: 100%;
        height: 150px;
    }
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .terminal-output h1,
    .article-title {
        font-size: 1.75rem;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .error-code {
        font-size: 5rem;
    }
}

@media (max-width: 480px) {
    .nav-status {
        display: none;
    }
    
    .hero-terminal {
        border-radius: 0;
        margin: 0 -1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .profile-name {
        font-size: 1.5rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-category {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .tool-category .output {
        min-width: auto;
    }
}