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

:root {
    --primary: #FFD700;
    --primary-dark: #FFC700;
    --primary-light: #FFE44D;
    --secondary: #FF1493;
    --accent: #7FFF00;
    --dark: #000000;
    --gray-900: #1a1a1a;
    --gray-800: #2d2d2d;
    --gray-700: #404040;
    --gray-600: #666666;
    --gray-500: #999999;
    --gray-400: #cccccc;
    --gray-300: #e0e0e0;
    --gray-200: #f0f0f0;
    --gray-100: #f8f8f8;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #FFD700 0%, #FF1493 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gray-900);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: static; /* not sticky */
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}

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

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--gray-100);
}

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

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Hero Section */
.hero {
    padding: 160px 0 120px;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
}

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

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--primary-light);
    color: var(--white);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-badge-green {
    background: var(--accent);
    color: var(--dark);
    border: 2px solid var(--dark);
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 20px;
    color: var(--gray-600);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 80px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    padding: 48px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 8px;
    text-shadow: 2px 2px 0 var(--dark);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
}

/* Problem Section */
.problem {
    padding: 120px 0;
    background: var(--white);
}

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

.section-header h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 20px;
    color: var(--gray-600);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.problem-card {
    padding: 40px;
    background: var(--gray-100);
    border-radius: 16px;
    transition: transform 0.2s;
}

.problem-card:hover {
    transform: translateY(-4px);
}

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

.problem-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.problem-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Solution Section */
.solution {
    padding: 120px 0;
    background: var(--dark);
    color: var(--white);
}

.solution .section-header h2,
.solution .section-subtitle {
    color: var(--white);
}

.solution-visual {
    margin-top: 64px;
}

.solution-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 48px;
    background: var(--gray-900);
    border-radius: 16px;
}

.flow-item {
    flex: 1;
    text-align: center;
}

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

.flow-label {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.flow-sublabel {
    font-size: 14px;
    color: var(--gray-400);
}

.flow-arrow {
    font-size: 32px;
    color: var(--primary-light);
}

/* Use Cases Section */
.use-cases {
    padding: 120px 0;
    background: var(--gray-100);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.use-case-card {
    padding: 40px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.use-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.use-case-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: var(--white);
}

.use-case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.use-case-icon {
    font-size: 40px;
}

.use-case-badge {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
}

.use-case-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.use-case-description {
    font-size: 16px;
    margin-bottom: 32px;
    opacity: 0.9;
}

.use-case-flow {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
    padding: 24px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 12px;
}

.use-case-card:not(.featured) .use-case-flow {
    background: var(--gray-100);
}

.flow-step {
    font-size: 14px;
    line-height: 1.6;
}

.flow-step strong {
    font-weight: 600;
}

.use-case-impact {
    display: flex;
    gap: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.use-case-card:not(.featured) .use-case-impact {
    border-top-color: var(--gray-200);
}

.impact-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.impact-number {
    font-size: 36px;
    font-weight: 800;
}

.impact-label {
    font-size: 14px;
    opacity: 0.8;
}

/* How It Works */
.how-it-works {
    padding: 120px 0;
    background: var(--white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.steps-grid::after {
    content: '→';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    color: var(--primary);
    font-weight: 800;
    z-index: 1;
    background: var(--white);
    padding: 0 16px;
}

.step {
    padding: 48px;
    background: var(--gray-100);
    border-radius: 16px;
    border: 2px solid var(--gray-200);
    transition: all 0.3s;
    position: relative;
}

.step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.step-number {
    width: 80px;
    height: 80px;
    margin: 0 auto 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50%;
    font-size: 36px;
    font-weight: 800;
    box-shadow: var(--shadow-lg);
}

.step h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--gray-900);
    text-align: center;
}

.step p {
    color: var(--gray-600);
    line-height: 1.8;
    font-size: 16px;
    text-align: left;
}

/* Features */
.features {
    padding: 120px 0;
    background: var(--gray-100);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature {
    padding: 32px;
    background: var(--white);
    border-radius: 12px;
    text-align: center;
}

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

.feature h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature p {
    color: var(--gray-600);
    font-size: 15px;
}

/* Get Started / Pricing */
.pricing {
    padding: 120px 0;
    background: var(--white);
}

.get-started-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 64px;
    background: var(--gray-100);
    border-radius: 24px;
    border: 3px solid var(--dark);
    box-shadow: 8px 8px 0 var(--secondary);
}

.get-started-card h3 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 32px;
    color: var(--dark);
}

.features-list {
    list-style: none;
    margin-bottom: 48px;
}

.features-list li {
    padding: 16px 0;
    font-size: 18px;
    color: var(--gray-900);
    border-bottom: 1px solid var(--gray-300);
}

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

.cta-box {
    padding: 32px;
    background: var(--white);
    border-radius: 16px;
    text-align: center;
    border: 2px solid var(--dark);
}

.cta-text {
    font-size: 18px;
    margin-bottom: 24px;
    color: var(--gray-700);
}

/* Social Proof */
.social-proof {
    padding: 120px 0;
    background: var(--gray-100);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial {
    padding: 40px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.testimonial-quote {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 24px;
    color: var(--gray-700);
}

.testimonial-author {
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.author-name {
    font-weight: 700;
    margin-bottom: 4px;
}

.author-title {
    font-size: 14px;
    color: var(--gray-600);
}

/* Final CTA */
.final-cta {
    padding: 120px 0;
    background: var(--dark);
    color: var(--white);
}

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

.cta-content h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 24px;
}

.cta-content > p {
    font-size: 20px;
    margin-bottom: 40px;
    color: var(--gray-400);
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
}

.cta-note {
    font-size: 14px;
    color: var(--gray-500);
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    background: var(--gray-900);
    color: var(--gray-400);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
    margin-bottom: 48px;
}

.footer-column h4 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.2s;
}

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

.footer-column p {
    font-size: 14px;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--gray-800);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .problem-grid,
    .use-cases-grid,
    .features-grid,
    .pricing-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .steps-grid::after {
        display: none;
    }
    
    .solution-flow {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .nav-content {
        justify-content: center;
    }
    .nav-logo img {
        height: 40px;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .steps-grid::after {
        display: none;
    }
    
    .step {
        padding: 32px;
    }
    
    .step-number {
        width: 64px;
        height: 64px;
        font-size: 28px;
    }
    
    .step h3 {
        font-size: 24px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
}