/* ============================================================================
 * JVR NetStack Website Styles
 * Google-inspired clean, modern design
 * ========================================================================== */

/* CSS Variables - Google-like color palette */
:root {
    --primary-color: #4285f4;
    --primary-dark: #1a73e8;
    --secondary-color: #34a853;
    --accent-yellow: #fbbc04;
    --accent-red: #ea4335;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --background: #ffffff;
    --surface: #f8f9fa;
    --border: #dadce0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-primary);
    background-color: var(--background);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    background-color: var(--background);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 2px var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    height: 40px;
    width: auto;
}

.brand-name {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s;
    font-size: 14px;
    font-weight: 500;
}

.nav-menu a:hover {
    background-color: var(--surface);
    color: var(--primary-dark);
}

.nav-menu a.active {
    color: var(--primary-color);
    background-color: #e8f0fe;
}

.btn-download {
    background-color: var(--primary-color) !important;
    color: white !important;
}

.btn-download:hover {
    background-color: var(--primary-dark) !important;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

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

.hero-title {
    font-size: 56px;
    font-weight: 400;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.95;
    font-weight: 300;
}

.hero-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.feature-badge {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    margin-top: 48px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 300;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 2px 8px var(--shadow-hover);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.95);
}

.btn-large {
    padding: 16px 48px;
    font-size: 16px;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 40px;
    font-weight: 400;
    text-align: center;
    margin-bottom: 48px;
    color: var(--text-primary);
}

/* Why Choose Section */
.why-choose {
    background-color: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background-color: var(--background);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.feature-card:hover {
    box-shadow: 0 4px 16px var(--shadow);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* Quick Example Section */
.quick-example {
    background-color: var(--surface);
}

.example-container {
    background-color: #1e1e1e;
    border-radius: 12px;
    padding: 24px;
    overflow-x: auto;
    box-shadow: 0 4px 16px var(--shadow);
}

.example-container pre {
    margin: 0;
}

.example-container code {
    color: #d4d4d4;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
}

.example-note {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-style: italic;
}

/* Comparison Table */
.comparison {
    background-color: var(--background);
}

.table-container {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
}

.comparison-table thead {
    background-color: var(--surface);
}

.comparison-table th {
    padding: 16px;
    text-align: left;
    font-weight: 500;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border);
}

.comparison-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.comparison-table tbody tr:hover {
    background-color: var(--surface);
}

.check {
    color: var(--secondary-color);
    font-weight: 500;
}

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

.cross {
    color: var(--accent-red);
    font-weight: 500;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 40px;
    font-weight: 400;
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    margin-bottom: 32px;
    opacity: 0.95;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: 48px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 16px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: white;
}

.footer-copyright {
    margin-top: 16px;
    font-size: 12px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 4px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* Syntax Highlighting for Code */
.language-c .keyword { color: #569cd6; }
.language-c .string { color: #ce9178; }
.language-c .comment { color: #6a9955; }
.language-c .function { color: #dcdcaa; }