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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* Header */
header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 60px 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.tagline {
    font-size: 1.3rem;
    opacity: 0.95;
    font-weight: 300;
}

/* Main Content */
main {
    padding: 40px 20px;
}

section {
    background: white;
    margin-bottom: 40px;
    padding: 50px;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 70px 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.lead {
    font-size: 1.25rem;
    margin-bottom: 35px;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* Features Section */
.features h3,
.use-cases h3,
.contact h3 {
    font-size: 2rem;
    margin-bottom: 35px;
    text-align: center;
    color: #1e3c72;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    padding: 30px;
    border-radius: 10px;
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border-color: #667eea;
}

.icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-card h4 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: #2a5298;
}

.feature-card p {
    color: #6c757d;
    line-height: 1.7;
}

/* Use Cases Section */
.use-case-list {
    list-style: none;
    max-width: 900px;
    margin: 0 auto;
}

.use-case-list li {
    padding: 20px;
    margin-bottom: 15px;
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.use-case-list li:hover {
    background: #e9ecef;
}

.use-case-list strong {
    color: #1e3c72;
    font-size: 1.1rem;
}

/* Contact Section */
.contact {
    text-align: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.contact p {
    font-size: 1.15rem;
    margin-bottom: 25px;
    color: #495057;
}

.contact-info {
    margin-top: 30px;
    padding: 30px;
    background: white;
    border-radius: 10px;
    display: inline-block;
}

.contact-info p {
    margin: 10px 0;
    font-size: 1.1rem;
}

.contact-info strong {
    color: #667eea;
}

/* AdSense Container */
.ad-container {
    margin: 40px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 40px 20px;
    margin-top: 60px;
}

footer p {
    margin: 8px 0;
    opacity: 0.9;
}

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

    .tagline {
        font-size: 1.1rem;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .lead {
        font-size: 1.1rem;
    }

    section {
        padding: 30px 25px;
    }

    .hero {
        padding: 50px 25px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .features h3,
    .use-cases h3,
    .contact h3 {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 1rem;
    }

    section {
        padding: 20px 15px;
    }
}