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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1F2937;
    background: #ffffff;
}

/* Dark sections */
.hero, .features, .pricing, .cta {
    background: #0a0a0a;
    color: #ffffff;
}

.hero {
    background: radial-gradient(ellipse at center, #1a1a2e 0%, #0a0a0a 70%);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #2a2a2a;
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand .logo {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow: hidden;
    height: 48px;
}

.logo-image {
    height: 250px;
    width: auto;
    object-fit: contain;
    background: transparent;
    filter: brightness(1.1);
    margin: -101px 0 -101px -20px;
    cursor: pointer;
    transition: filter 0.2s;
}

.logo a {
    display: block;
}

.logo-image:hover {
    filter: brightness(1.3);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #1E3A8A 0%, #06B6D4 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: -0.5px;
    color: white;
    box-shadow: 0 2px 8px rgba(30, 58, 138, 0.3);
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: #ccc;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: #ffffff;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, #1E3A8A 0%, #06B6D4 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    padding: 12px 24px;
    border: 1px solid #3a3a3a;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-block;
}

.btn-secondary:hover {
    background: #2a2a2a;
    border-color: #667eea;
}

.btn-outline {
    background: transparent;
    color: #667eea;
    padding: 12px 24px;
    border: 1px solid #667eea;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-block;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: radial-gradient(ellipse at center, #1a1a2e 0%, #0a0a0a 70%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, #1E3A8A 0%, #06B6D4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: #ccc;
    margin-bottom: 24px;
    line-height: 1.6;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
    text-align: left;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    color: #ffffff;
}

.checkmark {
    font-size: 18px;
    flex-shrink: 0;
}

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

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #667eea;
}

.stat-label {
    font-size: 14px;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Chat Preview */
.chat-preview {
    background: #171717;
    border: 1px solid #2a2a2a;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: #1f1f1f;
    border-bottom: 1px solid #2a2a2a;
}

.chat-title {
    font-weight: 600;
    color: #ffffff;
}

.model-badge {
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.chat-messages {
    padding: 20px;
    height: 300px;
    overflow-y: auto;
}

.message {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.message.user {
    flex-direction: row-reverse;
}

.message .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.message.ai .avatar {
    background: #667eea;
}

.message.user .avatar {
    background: #10b981;
}

.message .bubble {
    background: #2a2a2a;
    padding: 12px 16px;
    border-radius: 16px;
    max-width: 80%;
    font-size: 14px;
    line-height: 1.5;
}

.message.user .bubble {
    background: #667eea;
}

/* Competitive Advantage Section */
.competitive-advantage {
    padding: 80px 0;
    background: linear-gradient(135deg, #1E3A8A 0%, #06B6D4 100%);
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-card {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.comparison-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #ffffff;
}

.comparison-card p {
    color: rgba(255,255,255,0.9);
    line-height: 1.5;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: #0f0f0f;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: #9CA3AF;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: #171717;
    border: 1px solid #2a2a2a;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: #667eea;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.1);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.feature-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.feature-desc {
    color: #9CA3AF;
    line-height: 1.6;
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
    background: #0a0a0a;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: #171717;
    border: 1px solid #2a2a2a;
    border-radius: 16px;
    padding: 32px;
    position: relative;
    transition: all 0.3s;
}

.pricing-card.featured {
    border-color: #667eea;
    transform: scale(1.05);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #667eea;
    color: white;
    padding: 6px 16px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
}

.plan-header {
    text-align: center;
    margin-bottom: 32px;
}

.plan-name {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price {
    font-size: 48px;
    font-weight: 700;
    color: #667eea;
}

.period {
    color: #888;
    font-size: 16px;
}

.plan-features {
    list-style: none;
    margin-bottom: 32px;
}

.plan-features li {
    padding: 8px 0;
    color: #ccc;
    position: relative;
    padding-left: 24px;
}

.plan-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: 600;
}

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

.cta-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 18px;
    margin-bottom: 32px;
    opacity: 0.9;
}

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

.cta .btn-secondary {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.3);
}

.cta .btn-secondary:hover {
    background: rgba(255,255,255,0.2);
}

/* Footer */
.footer {
    background: #0a0a0a;
    border-top: 1px solid #2a2a2a;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.footer-desc {
    color: #888;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.link-group h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #ffffff;
}

.link-group a {
    display: block;
    color: #888;
    text-decoration: none;
    margin-bottom: 8px;
    transition: color 0.2s;
}

.link-group a:hover {
    color: #667eea;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #2a2a2a;
    color: #888;
    font-size: 14px;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: #888;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-legal a:hover {
    color: #667eea;
}

/* Waitlist Modal */
.waitlist-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.waitlist-modal.show {
    display: flex;
}

.waitlist-content {
    background: #171717;
    border: 1px solid #2a2a2a;
    border-radius: 16px;
    padding: 40px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
}

.waitlist-content h3 {
    font-size: 24px;
    margin-bottom: 16px;
    color: #ffffff;
}

.waitlist-content p {
    color: #888;
    margin-bottom: 24px;
}

.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.waitlist-form input {
    padding: 14px 16px;
    background: #2a2a2a;
    border: 1px solid #3a3a3a;
    border-radius: 8px;
    color: #ffffff;
    font-size: 16px;
}

.waitlist-form input:focus {
    outline: none;
    border-color: #06B6D4;
}

.close-waitlist {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: #888;
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
}

.close-waitlist:hover {
    color: #ffffff;
}

/* Mobile Optimization */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 32px;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .benefits-list {
        text-align: center;
    }
    
    .benefit-item {
        justify-content: center;
        font-size: 14px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    .btn-large {
        width: 100%;
        max-width: 280px;
        padding: 14px 24px;
        font-size: 16px;
        min-height: 48px;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 24px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}