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

body {
    font-family: 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #333;
}

nav {
    position: fixed;
    width: 100%;
    background: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links a {
    margin-left: 2rem;
    text-decoration: none;
    color: #333;
}

.hero {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
    text-align: center;
    padding: 8rem 2rem 4rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: #e74c3c;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 1rem;
}

section {
    padding: 4rem 2rem;
}

.alt-bg {
    background: #f5f6fa;
}

h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.card i {
    font-size: 2rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

pre {
    background: #2c3e50;
    color: white;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.doc-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
    text-decoration: none;
    color: #333;
}

.doc-card i {
    font-size: 2rem;
    color: #3498db;
    margin-bottom: 1rem;
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem;
}