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

:root {
    --primary-color: #1a73e8;
    --secondary-color: #0d47a1;
    --accent-color: #4285f4;
    --text-dark: #202124;
    --text-light: #5f6368;
    --background-light: #f8f9fa;
    --white: #ffffff;
    --success-color: #34a853;
    --card-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --card-hover-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

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);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.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-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.4rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    font-weight: 400;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.section-header h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-dark);
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Opportunity Section */
.opportunity {
    padding: 6rem 0;
    background: var(--white);
}

.opportunity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.opportunity-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.opportunity-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-hover-shadow);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.opportunity-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

.market-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-box {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    color: var(--white);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat-description {
    font-size: 1rem;
    opacity: 0.95;
}

/* Solution Section */
.solution {
    padding: 6rem 0;
    background: var(--background-light);
}

.solution-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.solution-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.solution-image img {
    width: 100%;
    height: auto;
    display: block;
}

.solution-text h3 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.solution-intro {
    font-size: 1.2rem;
    color: var(--text-light);
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

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

.feature-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    opacity: 0.2;
    margin-bottom: 1rem;
}

.feature-card h4 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

/* Business Model Section */
.business-model {
    padding: 6rem 0;
    background: var(--white);
}

.revenue-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.revenue-card {
    background: var(--background-light);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.revenue-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}

.revenue-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.revenue-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.revenue-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.revenue-summary {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    padding: 3rem;
    border-radius: 16px;
    color: var(--white);
    text-align: center;
}

.revenue-summary h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.revenue-summary p {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.95;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: var(--background-light);
}

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

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.contact-details {
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.contact-item svg {
    color: var(--primary-color);
}

.contact-form-wrapper {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26, 115, 232, 0.3);
}

.form-helper {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-light);
    text-align: center;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 3rem 0 2rem;
}

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

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.footer-column a:hover {
    opacity: 1;
}

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

/* Responsive Design */
@media (max-width: 968px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .stat-number {
        font-size: 2.2rem;
    }

    .section-header h2 {
        font-size: 2.2rem;
    }

    .solution-main {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .opportunity-grid,
    .features-grid,
    .revenue-grid {
        grid-template-columns: 1fr;
    }

    .market-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .opportunity-card,
    .feature-card,
    .revenue-card {
        padding: 1.5rem;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }
}