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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --dark: #0f172a;
    --dark-lighter: #1e293b;
    --dark-card: #1a1f35;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --border: #334155;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--text);
    line-height: 1.6;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.logo-icon {
    font-size: 1.8rem;
}

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

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

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

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

.nav-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-login {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.3s;
}

.btn-secondary:hover {
    background: var(--dark-lighter);
}

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

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
}

.hero-badge {
    display: inline-block;
    background: var(--dark-lighter);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.play-icon {
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
}

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

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Mockup */
.hero-image {
    display: flex;
    justify-content: center;
}

.mockup {
    background: var(--dark-card);
    border-radius: 16px;
    border: 1px solid var(--border);
    overflow: hidden;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.mockup-header {
    padding: 1rem;
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
}

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

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.mockup-content {
    padding: 1rem;
}

.chat-preview {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-msg {
    max-width: 85%;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.chat-msg.received {
    background: var(--dark-lighter);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-msg.sent {
    background: var(--primary);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.msg-name {
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0.8;
}

.msg-text {
    font-size: 0.9rem;
}

.msg-time {
    font-size: 0.7rem;
    opacity: 0.6;
    align-self: flex-end;
}

/* Logos Section */
.logos-section {
    padding: 4rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.logos-section p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.logos {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.logo-placeholder {
    color: var(--text-muted);
    font-size: 1rem;
    opacity: 0.7;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: var(--dark-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-muted);
}

/* How it Works */
.how-it-works {
    padding: 6rem 2rem;
    background: var(--dark-lighter);
}

.steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    text-align: center;
    flex: 1;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto 1.5rem;
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.step p {
    color: var(--text-muted);
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary);
}

/* Pricing Section */
.pricing {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.pricing-card {
    background: var(--dark-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    transition: transform 0.3s;
}

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

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.2);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.pricing-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.pricing-price {
    text-align: center;
    margin-bottom: 2rem;
}

.currency {
    font-size: 1.5rem;
    vertical-align: top;
}

.amount {
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.btn-pricing {
    display: block;
    text-align: center;
    padding: 1rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    background: var(--dark-lighter);
    color: var(--text);
    border: 1px solid var(--border);
    transition: background 0.3s;
}

.btn-pricing:hover {
    background: var(--border);
}

.btn-pricing-featured {
    background: var(--gradient);
    border: none;
}

.btn-pricing-featured:hover {
    opacity: 0.9;
}

/* CTA Section */
.cta {
    padding: 6rem 2rem;
    background: var(--dark-lighter);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.cta-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cta-form input {
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--dark);
    color: var(--text);
    font-size: 1rem;
}

.cta-form input:focus {
    outline: none;
    border-color: var(--primary);
}

/* Footer */
.footer {
    padding: 4rem 2rem 2rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 1rem;
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

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

.footer-column a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.5rem 0;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--text);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin: 0 auto 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-buttons {
        display: none;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}