* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: #ffffff;
    color: #333;
}

header {
    background: #111;
    color: white;
    padding-bottom: 60px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
}

nav .logo {
    font-size: 28px;
    font-weight: bold;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav a {
    color: white;
    text-decoration: none;
}

.hero {
    text-align: center;
    padding: 80px 20px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
}

.btn {
    background: #ffcc00;
    padding: 15px 30px;
    text-decoration: none;
    color: #000;
    font-weight: bold;
    border-radius: 6px;
}

.section {
    padding: 60px 40px;
    text-align: center;
}

.features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.card {
    background: #f5f5f5;
    padding: 20px;
    border-radius: 10px;
    width: 300px;
}

.dark {
    background: #f0f0f0;
}

.rewards-box {
    margin-top: 20px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    display: inline-block;
}

footer {
    text-align: center;
    padding: 20px;
    background: #111;
    color: white;
}