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

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

/* Navigation */
header {
    background: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    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: bold;
    color: #2563eb;
}

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

.nav-links a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #2563eb;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: #fff;
    color: #764ba2;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
}

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

.feature-card {
    padding: 2rem;
    background: #f8fafc;
    border-radius: 12px;
    text-align: center;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: #2563eb;
}

/* About Section */
.about {
    padding: 5rem 2rem;
    background: #f1f5f9;
    text-align: center;
}

.about h2 {
    margin-bottom: 1rem;
    font-size: 2rem;
}

/* Contact Section */
.contact {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.contact h2 {
    margin-bottom: 1rem;
    font-size: 2rem;
}

/* Footer */
footer {
    background: #1e293b;
    color: #fff;
    text-align: center;
    padding: 2rem;
}

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

    .nav-links {
        gap: 1rem;
    }
}