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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: #2d3748;
    background-color: #f8f9fa;
}

/* Header and Navigation */
header {
    background-color: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1a202c;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    padding: 0.6rem 1.1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.nav-menu a:hover {
    background-color: #f7fafc;
    color: #2d3748;
}

/* Hero Section */
.hero {
    background-color: #2c5282;
    color: white;
    padding: 5rem 2rem;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.hero-text {
    font-size: 1.2rem;
    color: #e2e8f0;
    max-width: 700px;
}

/* Page Hero */
.page-hero {
    background-color: #2c5282;
    color: white;
    padding: 3.5rem 2rem;
    text-align: center;
}

.page-hero h1 {
    font-size: 2.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.page-hero p {
    font-size: 1.1rem;
    color: #e2e8f0;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Intro Section */
.intro-section {
    padding: 4rem 0;
    background-color: #ffffff;
}

.intro-content h2 {
    color: #1a202c;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    font-weight: 600;
}

.intro-content p {
    color: #4a5568;
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
}

/* Features Section */
.features-section {
    padding: 4rem 0;
    background-color: #f7fafc;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: #1a202c;
    margin-bottom: 3rem;
    font-weight: 600;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.feature-item h3 {
    color: #1a202c;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.feature-item p {
    color: #4a5568;
    line-height: 1.7;
    margin-bottom: 0.8rem;
}

/* Use Cases Section */
.use-cases-section {
    padding: 4rem 0;
    background-color: #ffffff;
}

.use-cases-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.use-case {
    background: #f7fafc;
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid #2c5282;
}

.use-case h3 {
    color: #1a202c;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.use-case p {
    color: #4a5568;
    line-height: 1.7;
    margin-bottom: 1rem;
}

/* Advantages Section */
.advantages-section {
    padding: 4rem 0;
    background-color: #f7fafc;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.advantage-item {
    background: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.advantage-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #cbd5e0;
    margin-bottom: 0.5rem;
}

.advantage-item h4 {
    color: #1a202c;
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.advantage-item p {
    color: #4a5568;
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    padding: 4rem 0;
    background-color: #ffffff;
}

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

.step {
    background: #f7fafc;
    padding: 2rem;
    border-radius: 8px;
    border-top: 3px solid #2c5282;
}

.step-header {
    margin-bottom: 1rem;
}

.step-number {
    display: inline-block;
    background-color: #2c5282;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step h3 {
    color: #1a202c;
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.step p {
    color: #4a5568;
    line-height: 1.7;
    margin-bottom: 0.8rem;
}

/* Technical Section */
.technical-section {
    padding: 4rem 0;
    background-color: #f7fafc;
}

.technical-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.technical-block {
    background: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.technical-block h3 {
    color: #1a202c;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.technical-block p {
    color: #4a5568;
    line-height: 1.7;
    margin-bottom: 0.8rem;
}

/* Final CTA Section */
.final-cta {
    padding: 4rem 0;
    background-color: #2c5282;
    color: white;
    text-align: center;
}

.final-cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.final-cta p {
    font-size: 1.1rem;
    color: #e2e8f0;
    max-width: 800px;
    margin: 0 auto 1rem;
    line-height: 1.7;
}

/* Content Section */
.content-section {
    padding: 4rem 0;
    background-color: #ffffff;
}

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

.text-content h2 {
    color: #1a202c;
    margin: 2.5rem 0 1.5rem 0;
    font-size: 1.9rem;
    font-weight: 600;
    padding-top: 1rem;
    border-top: 2px solid #e2e8f0;
}

.text-content h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.text-content h3 {
    color: #2d3748;
    margin: 2rem 0 1rem 0;
    font-size: 1.4rem;
    font-weight: 600;
}

.text-content p {
    color: #4a5568;
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 1.02rem;
}

.text-content ul {
    margin: 1rem 0 1.5rem 2rem;
    color: #4a5568;
    line-height: 1.8;
}

.text-content ul li {
    margin-bottom: 0.6rem;
}

.text-content strong {
    color: #2d3748;
    font-weight: 600;
}

/* Footer */
footer {
    background-color: #1a202c;
    color: #e2e8f0;
    text-align: center;
    padding: 2.5rem 2rem;
    margin-top: 0;
}

footer p {
    font-size: 0.95rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

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

    .page-hero h1 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    nav {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.3rem;
    }

    .nav-menu a {
        padding: 0.5rem 0.8rem;
        font-size: 0.9rem;
    }

    .features-grid,
    .use-cases-content,
    .advantages-grid,
    .steps-container,
    .technical-content {
        grid-template-columns: 1fr;
    }

    .text-content h2 {
        font-size: 1.5rem;
    }

    .text-content h3 {
        font-size: 1.2rem;
    }

    .container {
        padding: 0 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 1.5rem;
    }

    .page-hero {
        padding: 2.5rem 1.5rem;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .page-hero h1 {
        font-size: 1.5rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .feature-item,
    .use-case,
    .advantage-item,
    .step,
    .technical-block {
        padding: 1.5rem;
    }
}