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

:root {
    /* Primary Color Palette - Professional Blue */
    --primary-blue: #1e40af;
    --primary-blue-dark: #1e3a8a;
    --primary-blue-light: #3b82f6;
    
    /* Secondary Colors - Subtle Gray-Blue */
    --accent-subtle: #64748b;
    --accent-subtle-light: #94a3b8;
    
    /* Neutral Colors */
    --text-dark: #1f2937;
    --text-medium: #4b5563;
    --text-light: #6b7280;
    --text-muted: #9ca3af;
    
    /* Background Colors */
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-lighter: #f1f5f9;
    --bg-gray: #f1f5f9;
    
    /* Border Colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    
    /* Success/Error Colors */
    --success: #059669;
    --error: #dc2626;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-subtle) 0%, var(--accent-subtle-light) 100%);
    --gradient-hero: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.nav-logo i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

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

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

.nav-cta {
    background: var(--primary-blue);
    color: white !important;
    padding: 10px 20px;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.nav-cta:hover {
    background: var(--primary-blue-dark);
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: var(--gradient-hero);
    color: white;
    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="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.6;
}

.cta-primary {
    background: var(--primary-blue-light);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.cta-primary:hover {
    background: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

/* Hero Image */
.hero-image {
    max-width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 16px;
    /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1); */
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.hero-image:hover {
    transform: perspective(1000px) rotateY(-2deg) rotateX(2deg);
}

/* Platform Preview */
.platform-preview {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.platform-preview:hover {
    transform: perspective(1000px) rotateY(-2deg) rotateX(2deg);
}

.preview-header {
    background: #f3f4f6;
    padding: 15px;
    border-bottom: 1px solid #e5e7eb;
}

.preview-dots {
    display: flex;
    gap: 8px;
}

.preview-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #d1d5db;
}

.preview-dots span:nth-child(1) { background: var(--error); }
.preview-dots span:nth-child(2) { background: var(--accent-gold); }
.preview-dots span:nth-child(3) { background: var(--success); }

.preview-content {
    display: flex;
    height: 300px;
}

.preview-sidebar {
    width: 120px;
    background: #f9fafb;
    padding: 20px 0;
    border-right: 1px solid #e5e7eb;
}

.sidebar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px 10px;
    cursor: pointer;
    transition: background 0.3s ease;
    font-size: 0.8rem;
    color: #6b7280;
}

.sidebar-item.active {
    background: #eff6ff;
    color: var(--primary-blue);
}

.sidebar-item i {
    font-size: 1.2rem;
}

.preview-main {
    flex: 1;
    padding: 20px;
    background: white;
}

.preview-post {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    border-radius: 8px;
    background: #f9fafb;
}

.post-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-hero);
    flex-shrink: 0;
}

.post-content {
    flex: 1;
}

.post-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.post-header strong {
    color: var(--text-dark);
    font-size: 0.9rem;
}

.post-header span {
    color: var(--text-light);
    font-size: 0.8rem;
}

.post-content p {
    color: var(--text-medium);
    font-size: 0.85rem;
    line-height: 1.4;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

/* Problem Section */
.problem {
    padding: 80px 0;
    background: var(--bg-light);
}

.problem-content {
    max-width: 1200px;
    margin: 0 auto;
}

.problem-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    text-align: center;
}

.problem-subtitle {
    font-size: 1.2rem;
    color: var(--text-medium);
    text-align: center;
    margin-bottom: 50px;
    line-height: 1.6;
}

.equation-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    min-height: 400px;
}

.equation-left,
.equation-right {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.equation-left h3,
.equation-right h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 30px;
    text-align: center;
}

.equation-left h3 {
    color: var(--error);
}

.equation-right h3 {
    color: var(--primary-blue);
}

.issue-list,
.result-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.issue-item,
.result-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.issue-item:hover,
.result-item:hover {
    transform: translateX(5px);
}

.issue-icon {
    width: 45px;
    height: 45px;
    background: var(--error);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.result-icon {
    width: 45px;
    height: 45px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.issue-content h4,
.result-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.issue-content p,
.result-content p {
    color: var(--text-medium);
    line-height: 1.5;
    margin: 0;
    font-size: 0.95rem;
}

.equation-equals {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.equals-sign {
    width: 80px;
    height: 80px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
}

/* Promise Section */
.promise {
    padding: 80px 0;
    background: var(--gradient-primary);
    color: white;
}

.promise-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.promise-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.promise-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    line-height: 1.6;
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
    background: var(--bg-white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.benefit-card {
    padding: 40px 30px;
    border-radius: 16px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1f2937;
}

.benefit-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
    background: #f9fafb;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.step-card {
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1f2937;
}

.step-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* Social Proof Section */
.social-proof {
    padding: 80px 0;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.testimonial-card {
    padding: 40px;
    background: var(--bg-lighter);
    border-radius: 16px;
    border-left: 4px solid var(--accent-subtle);
    transition: transform 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-3px);
}

.testimonial-content p {
    font-size: 1.1rem;
    font-style: italic;
    color: #374151;
    margin-bottom: 20px;
    line-height: 1.6;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.author-info strong {
    display: block;
    color: #1f2937;
    font-weight: 600;
}

.author-info span {
    color: #6b7280;
    font-size: 0.9rem;
}

/* Founding Offer Section */
.founding-offer {
    padding: 80px 0;
    background: var(--bg-light);
    color: var(--text-dark);
}

.offer-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.offer-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.2);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.offer-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 40px;
}

.offer-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.offer-feature {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.offer-feature i {
    font-size: 1.2rem;
    color: var(--primary-blue);
}

.offer-feature span {
    font-weight: 500;
}

.offer-deadline {
    margin-bottom: 40px;
    font-size: 1.1rem;
    font-weight: 500;
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
    background: #f9fafb;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.pricing-card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
    position: relative;
}

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

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

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.plan-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-blue);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 10px;
}

.plan-description {
    color: #6b7280;
    margin-bottom: 30px;
}

.plan-price {
    margin-bottom: 10px;
}

.plan-price .price {
    font-size: 3rem;
    font-weight: 700;
    color: #1f2937;
}

.plan-price .period {
    font-size: 1.2rem;
    color: #6b7280;
}

.plan-original {
    color: #9ca3af;
    text-decoration: line-through;
    margin-bottom: 30px;
}

.plan-features {
    list-style: none;
    text-align: left;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: #4b5563;
}

.plan-features i {
    color: var(--success);
    font-size: 0.9rem;
}

.pricing-note {
    text-align: center;
    color: #6b7280;
    font-style: italic;
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 20px;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    cursor: pointer;
    font-weight: 600;
    color: #1f2937;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--primary-blue);
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer.active {
    max-height: 200px;
    padding-bottom: 20px;
}

.faq-answer p {
    color: #6b7280;
    line-height: 1.6;
}

/* Demo CTA Section */
.demo-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #1f2937, #374151);
    color: white;
    text-align: center;
}

.demo-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
}

.cta-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.cta-secondary:hover {
    background: white;
    color: #1f2937;
}

.demo-content p {
    opacity: 0.8;
    font-size: 1.1rem;
}

.demo-note {
    margin-top: 20px;
    font-size: 1rem;
    opacity: 0.7;
    font-style: italic;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.footer-logo i {
    font-size: 1.8rem;
}

.footer-brand p {
    color: #9ca3af;
    max-width: 300px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 20px;
    text-align: center;
    color: #9ca3af;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 16px;
    padding: 40px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6b7280;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: #1f2937;
}

/* Form Styles */
.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: #374151;
}

.form-group input,
.form-group select {
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .equation-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .equation-equals {
        order: -1;
        padding: 10px;
    }
    
    .equals-sign {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .problem-grid,
    .benefits-grid,
    .steps-grid,
    .testimonials-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .offer-features {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .cta-primary,
    .cta-secondary {
        padding: 14px 24px;
        font-size: 1rem;
    }
    
    .modal-content {
        padding: 30px 20px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}