:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background: #ffffff;
    --background-alt: #f9fafb;
    --border: #e5e7eb;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --ai-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --ai-gradient-alt: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
}

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

html {
    background: #ffffff !important;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    background: #ffffff !important;
    color: #1f2937 !important;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

.ai-accent {
    background: var(--ai-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Buttons */
.cta-button {
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    font-size: 0.95rem;
}

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

.cta-button.primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

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

.cta-button.large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23000" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.ai-gradient {
    background: var(--ai-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* Terminal */
.terminal-window {
    background: #1a1a1a;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    font-family: 'JetBrains Mono', monospace;
}

.terminal-header {
    background: #2d2d2d;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.terminal-dots {
    display: flex;
    gap: 0.5rem;
}

.terminal-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f56;
}

.terminal-dots span:nth-child(2) {
    background: #ffbd2e;
}

.terminal-dots span:nth-child(3) {
    background: #27ca3f;
}

.terminal-title {
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
}

.terminal-content {
    padding: 1.5rem;
    background: #1a1a1a;
    color: #e5e5e5;
    font-size: 0.9rem;
    line-height: 1.6;
}

.terminal-line {
    margin-bottom: 0.5rem;
}

.prompt {
    color: #27ca3f;
    font-weight: 500;
}

.command {
    color: #ffbd2e;
    margin-left: 0.5rem;
}

.timestamp {
    color: #6b7280;
    font-size: 0.8rem;
}

.status.success {
    color: #27ca3f;
    font-weight: 600;
}

.status.clean {
    color: #06b6d4;
    font-weight: 600;
}

.score {
    color: #ffbd2e;
    margin-left: 1rem;
}

.time {
    color: #9ca3af;
    margin-left: 1rem;
}

.terminal-line.stats {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #374151;
}

.metric {
    color: #e5e5e5;
    margin-right: 2rem;
}

.processing {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Sections */
section {
    padding: 5rem 0;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
}

/* Features */
.features {
    background: var(--background-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Performance */
.performance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.performance-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.performance-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-align: center;
}

.chart-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chart-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.bar {
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    min-width: 150px;
    position: relative;
}

.bar.zpam {
    background: var(--ai-gradient);
    color: white;
}

.bar.rspamd {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.bar.spamassassin {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    color: white;
}

.bar-label {
    font-weight: 600;
    font-size: 0.9rem;
}

.bar-value {
    font-weight: 700;
    font-size: 0.9rem;
}

/* Comparison */
.compare {
    background: var(--background-alt);
}

.comparison-table {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.comparison-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--background-alt);
    padding: 2rem;
    text-align: center;
}

.legacy-column h3 {
    color: var(--text-secondary);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.ai-column h3 {
    background: var(--ai-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border);
    align-items: center;
    padding: 1rem 2rem;
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-feature {
    font-weight: 600;
    color: var(--text-primary);
}

.legacy-value {
    color: var(--text-secondary);
    text-align: center;
}

.ai-value {
    color: var(--primary-color);
    font-weight: 600;
    text-align: center;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.pricing-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.featured-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.price-period {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

/* CTA Section */
.cta {
    background: var(--ai-gradient);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

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

.cta .cta-button.secondary {
    background: transparent;
    color: white;
    border-color: white;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    opacity: 0.8;
}

.footer-links {
    display: flex;
    justify-content: space-between;
}

.footer-column h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .nav-links {
        display: none;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .comparison-row {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: center;
    }
    
    .comparison-feature {
        font-weight: 700;
        padding: 0.5rem;
        background: var(--background-alt);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 2rem;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
}