/* CSS Custom Properties (Variables) */
:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --card-bg: #161616;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #666666;
    --accent-color: #e87500; /* Software 3.0 orange from logo */
    --accent-hover: #cc6600;
    --border-color: #333333;
    --terminal-bg: #0c0c0c;
    --font-family: 'TT Autonomous', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'TT Autonomous Mono', 'TT Autonomous', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
}

/* TT Autonomous Font Face Declarations */
@font-face {
    font-family: 'TT Autonomous';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('./fonts/TT-Autonomous-Regular.woff2') format('woff2'),
         url('./fonts/TT-Autonomous-Regular.woff') format('woff'),
         url('./fonts/TT-Autonomous-Regular.ttf') format('truetype');
}

@font-face {
    font-family: 'TT Autonomous';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('./fonts/TT-Autonomous-Bold.woff2') format('woff2'),
         url('./fonts/TT-Autonomous-Bold.woff') format('woff'),
         url('./fonts/TT-Autonomous-Bold.ttf') format('truetype');
}

/* TT Autonomous Mono variant (if available) */
@font-face {
    font-family: 'TT Autonomous Mono';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('./fonts/TT-Autonomous-Mono-Regular.woff2') format('woff2'),
         url('./fonts/TT-Autonomous-Mono-Regular.woff') format('woff'),
         url('./fonts/TT-Autonomous-Mono-Regular.ttf') format('truetype');
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
}

/* Removed starry square styles */

.logo-placeholder {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.logo-text {
    margin-left: 0.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Main Content */
.main {
    margin-top: 80px;
}

/* Hero Section */
.hero {
    padding: 4rem 0 6rem;
    text-align: center;
}

.terminal-window {
    max-width: 800px;
    margin: 0 auto;
    background: var(--terminal-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

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

.terminal-buttons {
    display: flex;
    gap: 8px;
}

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

.terminal-button.close {
    background: #ff5f56;
}

.terminal-button.minimize {
    background: #ffbd2e;
}

.terminal-button.maximize {
    background: #27ca3f;
}

.terminal-title {
    flex: 1;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.terminal-body {
    padding: 2rem;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    line-height: 1.8;
}

.terminal-line {
    display: flex;
    align-items: center;
    margin: 0.5rem 0;
}

.prompt {
    color: var(--accent-color);
    margin-right: 0.5rem;
    font-weight: 600;
}

.command {
    color: var(--text-primary);
}

.terminal-output {
    margin: 1rem 0 2rem;
    padding-left: 1.5rem;
}

.output-line {
    margin: 0.3rem 0;
    color: var(--text-secondary);
}

.cursor {
    animation: blink 1s infinite;
    color: var(--accent-color);
    font-weight: 600;
}

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

/* Sections */
.section {
    padding: 6rem 0;
}

.section-alt {
    background: var(--secondary-bg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.section-content {
    max-width: 900px;
    margin: 0 auto;
}

.lead {
    font-size: 1.25rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-color);
}

.feature-card h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Feature List */
.feature-list {
    display: grid;
    gap: 2rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.feature-item:hover {
    border-color: var(--accent-color);
}

.feature-icon {
    min-width: 60px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--accent-color);
    transition: transform 0.3s ease;
}

.feature-item:hover .feature-icon i {
    transform: scale(1.1);
}

.feature-text h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.feature-text p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Paradigm Comparison */
.paradigm-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 1.5rem;
    align-items: center;
    margin: 3rem 0;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.paradigm-column {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.paradigm-column::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.paradigm-column:hover::before {
    opacity: 0.6;
}

.paradigm-column:hover {
    transform: translateY(-4px);
    border-color: var(--accent-color);
    box-shadow: 0 8px 24px rgba(232, 117, 0, 0.2);
}

.paradigm-column.accent {
    border-color: var(--accent-color);
    background: rgba(232, 117, 0, 0.05);
    box-shadow: 0 4px 20px rgba(232, 117, 0, 0.15);
}

.paradigm-column.accent::before {
    opacity: 1;
}

.paradigm-column h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
    font-weight: 700;
}

.paradigm-column p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
}

.paradigm-column ul {
    list-style: none;
    text-align: left;
}

.paradigm-column li {
    color: var(--text-secondary);
    margin: 0.6rem 0;
    padding-left: 1.2rem;
    position: relative;
    font-size: 0.9rem;
    line-height: 1.4;
}

.paradigm-column li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 6px;
    height: 6px;
    background: var(--accent-color);
    border-radius: 50%;
    transform: translateY(-50%);
}

.paradigm-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--card-bg);
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: bold;
    position: relative;
    transition: all 0.3s ease;
}

/* Removed trailing line behind arrows */

.paradigm-arrow:hover {
    background: var(--accent-color);
    color: var(--primary-bg);
    transform: scale(1.1);
}

/* VS Code Demo */
.vscode-demo {
    margin: 3rem 0;
}

.vscode-window {
    background: #1e1e1e;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid #333;
    max-width: 1000px;
    margin: 0 auto;
}

.vscode-titlebar {
    background: #2d2d30;
    display: flex;
    align-items: center;
    padding: 8px 12px;
    border-bottom: 1px solid #3e3e42;
    justify-content: space-between;
}

.vscode-traffic-lights {
    display: flex;
    gap: 8px;
}

.vscode-light {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
}

.vscode-light.close { background: #ff5f57; }
.vscode-light.minimize { background: #ffbd2e; }
.vscode-light.maximize { background: #28ca42; }

.vscode-title {
    flex: 1;
    text-align: center;
    color: #ccc;
    font-size: 0.85rem;
    font-weight: 400;
}

.vscode-menu {
    display: flex;
    gap: 12px;
    color: #ccc;
    font-size: 0.8rem;
}

.vscode-body {
    display: flex;
    min-height: 400px;
}

.vscode-editor {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.editor-toolbar {
    background: #2d2d30;
    border-bottom: 1px solid #3e3e42;
    padding: 8px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.view-toggles {
    display: flex;
    gap: 8px;
}

.view-toggle {
    background: #3c3c3c;
    border: 1px solid #555;
    color: #ccc;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.view-toggle:hover {
    background: #4c4c4c;
    border-color: var(--accent-color);
}

.view-toggle.active {
    background: var(--accent-color);
    color: #000;
    border-color: var(--accent-color);
}

.editor-actions {
    display: flex;
    gap: 8px;
}

.editor-action {
    background: #0e639c;
    border: none;
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.editor-action:hover {
    background: #1177bb;
}

.editor-content {
    flex: 1;
    display: flex;
    background: #1e1e1e;
}

.line-numbers {
    background: #1e1e1e;
    padding: 16px 8px;
    border-right: 1px solid #3e3e42;
    color: #858585;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.6;
    min-width: 50px;
    text-align: right;
}

.line-number {
    height: 1.6em;
    padding-right: 8px;
}

.editor-text {
    flex: 1;
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.6;
    color: #d4d4d4;
}

.code-line {
    height: 1.6em;
    white-space: pre-wrap;
}

.comment {
    color: #6a9955;
    font-style: italic;
}

.keyword {
    color: var(--accent-color);
    font-weight: 600;
}

.status-bar {
    background: #007acc;
    color: white;
    padding: 4px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    border-top: 1px solid #3e3e42;
}

.status-left, .status-right {
    display: flex;
    gap: 16px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.demo-description {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.demo-description p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.demo-description ul {
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

.demo-description li {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.demo-description li i {
    color: var(--accent-color);
    width: 20px;
    text-align: center;
}

/* Terminal Demo (keeping for backwards compatibility) */
.terminal-demo {
    margin: 3rem 0;
}

/* Contact Section */
.contact-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--accent-color);
    color: var(--primary-bg);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid var(--accent-color);
}

.cta-button:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
}

.cta-button.secondary {
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
}

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

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

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

.footer-left p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

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

.footer-separator {
    color: var(--text-muted);
}

/* Accent Class */
.accent {
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .paradigm-comparison {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto auto;
        gap: 2rem;
    }
    
    .paradigm-arrow {
        transform: rotate(90deg);
        margin: -1rem auto;
    }
    
    /* Removed mobile arrow trailing line */
    
    .terminal-body {
        padding: 1rem;
        font-size: 0.85rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-links {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 200px;
        text-align: center;
    }
    
    .vscode-window {
        margin: 0;
        border-radius: 4px;
    }
    
    .vscode-titlebar {
        padding: 6px 8px;
    }
    
    .vscode-title {
        font-size: 0.75rem;
    }
    
    .editor-toolbar {
        padding: 6px 12px;
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }
    
    .view-toggles {
        justify-content: center;
    }
    
    .view-toggle {
        padding: 8px 12px;
        font-size: 0.75rem;
    }
    
    .editor-action {
        padding: 8px 12px;
        font-size: 0.75rem;
    }
    
    .editor-content {
        min-height: 250px;
    }
    
    .line-numbers {
        padding: 12px 6px;
        font-size: 0.75rem;
    }
    
    .editor-text {
        padding: 12px;
        font-size: 0.75rem;
    }
    
    .status-bar {
        flex-direction: column;
        gap: 4px;
        text-align: center;
        padding: 8px;
    }
    
    .demo-description {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav {
        padding: 1rem;
    }
    
    .hero {
        padding: 2rem 0 4rem;
    }
    
    .section {
        padding: 4rem 0;
    }
    
    .terminal-window {
        margin: 0 10px;
    }
}

/* Logo styles - cleaned up */

/* Smooth Scrolling Enhancements */
@media (prefers-reduced-motion: no-preference) {
    .feature-card,
    .feature-item,
    .paradigm-column {
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
}

/* VS Code Demo Syntax Highlighting */
.editor-text .keyword {
    color: #569cd6;
    font-weight: 600;
}

.editor-text .function {
    color: #dcdcaa;
    font-weight: 500;
}

.editor-text .string {
    color: #ce9178;
}

.editor-text .comment {
    color: #6a9955;
    font-style: italic;
}

.editor-text .type {
    color: #4ec9b0;
}

/* Dual View Layout */
.dual-view-container {
    display: flex;
    gap: 1rem;
    height: 100%;
}

.dual-pane {
    flex: 1;
    border: 1px solid #333;
    border-radius: 4px;
    overflow: hidden;
}

.pane-header {
    background: #2d2d30;
    color: #cccccc;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-bottom: 1px solid #333;
}

.dual-pane .code-line {
    padding: 0.2rem 1rem;
    font-size: 0.85rem;
}

/* Interactive button states */
.view-toggle {
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.view-toggle.active {
    background: var(--accent-color);
    color: #000;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --accent-color: #00ffaa;
        --border-color: #555555;
        --text-secondary: #dddddd;
    }
}