body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: #333;
    background-color: #f9f9f9;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background-color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

header nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #333;
}

header nav a:hover {
    color: #0077cc;
}

/* Hero */
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(to right, #0077cc, #00aaff);
    color: white;
}

.hero h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.hero p {
    font-size: 1.2em;
    margin-bottom: 20px;
}

.btn {
    background-color: white;
    color: #0077cc;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

.btn:hover {
    background-color: #f0f0f0;
}

/* About */
.about {
    max-width: 800px;
    margin: 50px auto;
    padding: 0 20px;
    text-align: center;
}

/* Footer */
footer {
    text-align: center;
    padding: 15px;
    background-color: white;
    font-size: 0.9em;
    color: #666;
    border-top: 1px solid #ddd;
}