:root {
    /* Terminal Colors */
    --primary-green: #00ff88;
    --secondary-green: #00cc6a;
    --dark-green: #008844;
    --terminal-bg: #0a0e0f;
    --screen-bg: #0d1117;
    --text-primary: #00ff88;
    --text-secondary: #00cc6a;
    --text-dim: #005533;
    --accent-yellow: #ffcc00;
    --accent-red: #ff3366;
    --accent-blue: #00ccff;
    
    /* CRT Effects */
    --glow-intensity: 0 0 10px var(--primary-green),
                      0 0 20px var(--primary-green),
                      0 0 30px var(--primary-green);
    --scanline-color: rgba(0, 255, 136, 0.05);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

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

body {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    background: var(--terminal-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* CRT Screen Overlay */
.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background: 
        radial-gradient(ellipse at center, transparent 0%, rgba(10, 14, 15, 0.5) 100%);
    animation: flicker 0.15s infinite;
}

.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
    background: repeating-linear-gradient(
        0deg,
        var(--scanline-color) 0px,
        transparent 1px,
        transparent 2px,
        var(--scanline-color) 3px
    );
    animation: scanline 8s linear infinite;
}

@keyframes flicker {
    0% { opacity: 0.97; }
    50% { opacity: 1; }
    100% { opacity: 0.97; }
}

@keyframes scanline {
    0% { transform: translateY(0); }
    100% { transform: translateY(10px); }
}

/* Hamburger Menu */
.hamburger {
    position: fixed;
    top: var(--spacing-md);
    left: var(--spacing-md);
    width: 40px;
    height: 30px;
    cursor: pointer;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    transition: transform 0.3s ease;
}

.hamburger:hover {
    transform: scale(1.1);
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--primary-green);
    box-shadow: var(--glow-intensity);
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Sidebar Navigation */
.sidebar {
    position: fixed;
    top: 0;
    left: -320px;
    width: 320px;
    height: 100vh;
    background: var(--screen-bg);
    border-right: 2px solid var(--primary-green);
    box-shadow: 4px 0 20px rgba(0, 255, 136, 0.3);
    z-index: 1000;
    transition: left 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.sidebar.active {
    left: 0;
}

.sidebar-header h3 {
    color: var(--primary-green);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    text-shadow: var(--glow-intensity);
    font-weight: 700;
}

.nav-links {
    list-style: none;
    flex-grow: 1;
}

.nav-links li {
    margin-bottom: var(--spacing-sm);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-left: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::before {
    content: '> ';
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-green);
    border-left-color: var(--primary-green);
    padding-left: var(--spacing-md);
    text-shadow: 0 0 10px var(--primary-green);
}

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

.sidebar-footer {
    border-top: 1px solid var(--text-dim);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
}

.status {
    margin-bottom: var(--spacing-xs);
}

.status-active {
    color: var(--primary-green);
    animation: pulse 2s infinite;
}

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

.last-update {
    color: var(--text-dim);
    font-size: 0.75rem;
}

/* Main Terminal Container */
.terminal {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* Section Styling */
.section {
    margin-bottom: var(--spacing-xl);
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

.section:nth-child(1) { animation-delay: 0.2s; }
.section:nth-child(2) { animation-delay: 0.4s; }
.section:nth-child(3) { animation-delay: 0.6s; }
.section:nth-child(4) { animation-delay: 0.8s; }
.section:nth-child(5) { animation-delay: 1s; }

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

.section-header {
    margin-bottom: var(--spacing-md);
}

.system-info {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

/* Hero Section */
.ascii-art {
    color: var(--primary-green);
    font-size: 0.5rem;
    line-height: 1.2;
    text-shadow: 0 0 5px var(--primary-green);
    margin-bottom: var(--spacing-md);
    overflow-x: auto;
}

.hero-title {
    font-size: 2rem;
    color: var(--primary-green);
    text-shadow: var(--glow-intensity);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.hero-description {
    color: var(--text-dim);
    margin-bottom: var(--spacing-lg);
}

.prompt-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-lg);
}

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

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

.cursor {
    color: var(--primary-green);
    animation: blink 1s step-end infinite;
}

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

/* Content Sections */
.content h2 {
    color: var(--primary-green);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 0 10px var(--primary-green);
}

.content p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.highlight {
    color: var(--accent-yellow);
    font-weight: 700;
}

.note {
    color: var(--text-dim);
    font-style: italic;
}

.feature-list {
    list-style: none;
    padding-left: var(--spacing-md);
}

.feature-list li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.feature-list li::before {
    content: '→ ';
    color: var(--primary-green);
}

/* Experiments */
.experiment-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.experiment-item {
    border: 1px solid var(--text-dim);
    padding: var(--spacing-md);
    background: rgba(0, 255, 136, 0.02);
    transition: all 0.3s ease;
}

.experiment-item:hover {
    border-color: var(--primary-green);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
    background: rgba(0, 255, 136, 0.05);
}

.experiment-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.status-badge {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-weight: 700;
}

.status-badge.running {
    background: var(--primary-green);
    color: var(--terminal-bg);
}

.status-badge.archived {
    background: var(--text-dim);
    color: var(--terminal-bg);
}

.experiment-header h3 {
    flex: 1;
    color: var(--secondary-green);
    font-size: 1.1rem;
}

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

.experiment-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.experiment-meta {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    background: rgba(0, 255, 136, 0.1);
    color: var(--primary-green);
    border: 1px solid var(--text-dim);
}

.link {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.link:hover {
    color: var(--primary-green);
    text-shadow: 0 0 10px var(--primary-green);
}

/* Log Entries */
.log-entries {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.log-entry {
    border-left: 2px solid var(--text-dim);
    padding-left: var(--spacing-md);
    transition: border-color 0.3s ease;
}

.log-entry:hover {
    border-left-color: var(--primary-green);
}

.log-timestamp {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-xs);
}

.log-entry p {
    margin-bottom: var(--spacing-xs);
}

.log-note {
    color: var(--accent-yellow);
    font-weight: 500;
}

/* Playground */
.playground-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.playground-item {
    border: 1px solid var(--text-dim);
    padding: var(--spacing-md);
    background: rgba(0, 255, 136, 0.02);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    transition: all 0.3s ease;
}

.playground-item:hover:not(.coming-soon) {
    border-color: var(--primary-green);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
}

.playground-item.coming-soon {
    opacity: 0.5;
}

.playground-item h3 {
    color: var(--secondary-green);
    font-size: 1.1rem;
}

.playground-item p {
    color: var(--text-dim);
    font-size: 0.9rem;
}

.btn-demo,
.btn-code {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    text-decoration: none;
    border: 1px solid var(--primary-green);
    color: var(--primary-green);
    text-align: center;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.btn-demo:hover {
    background: var(--primary-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

.btn-code {
    border-color: var(--text-dim);
    color: var(--text-secondary);
}

.btn-code:hover {
    border-color: var(--secondary-green);
    color: var(--secondary-green);
}

/* Footer */
.terminal-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--text-dim);
    text-align: center;
}

.footer-note {
    color: var(--text-dim);
    font-style: italic;
    margin: var(--spacing-sm) 0;
}

.footer-links {
    color: var(--text-secondary);
}

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

.footer-links a:hover {
    color: var(--primary-green);
    text-shadow: 0 0 10px var(--primary-green);
}

/* Responsive Design */
@media (max-width: 768px) {
    .terminal {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .ascii-art {
        font-size: 0.35rem;
    }

    .hero-title {
        font-size: 1.5rem;
    }

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

    .sidebar {
        width: 280px;
        left: -280px;
    }

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

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--primary-green);
    color: var(--terminal-bg);
}

/* Markdown Modal */
.markdown-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 15, 0.95);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
    overflow-y: auto;
    animation: fadeIn 0.3s ease;
}

.markdown-content {
    background: var(--screen-bg);
    border: 2px solid var(--primary-green);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.5);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--spacing-lg);
    position: relative;
}

.close-modal {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: 2px solid var(--primary-green);
    color: var(--primary-green);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    transition: all 0.3s ease;
}

.close-modal:hover {
    background: var(--primary-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

.markdown-text {
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Scrollbar for markdown modal */
.markdown-content::-webkit-scrollbar {
    width: 10px;
}

.markdown-content::-webkit-scrollbar-track {
    background: var(--terminal-bg);
}

.markdown-content::-webkit-scrollbar-thumb {
    background: var(--primary-green);
    border-radius: 5px;
}

.markdown-content::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-green);
}