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

body {
    background: #f4f4f4;
    color: #333;
}

header {
    background: #222;
    color: white;
    padding: 15px 50px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: #00bcd4;
}

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

.nav-links li {
    margin-left: 20px;
}

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

.hero {
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #2193b0, #6dd5ed);
    color: white;
    text-align: center;
    padding: 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

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

button {
    padding: 12px 25px;
    border: none;
    background: white;
    color: #2193b0;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #222;
    color: white;
}

.features {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 60px 20px;
    flex-wrap: wrap;
}

.card {
    background: white;
    width: 280px;
    padding: 25px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,.1);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-10px);
}

footer {
    background: #222;
    color: white;
    text-align: center;
    padding: 20px;
}

@media(max-width:768px) {

nav {
    flex-direction: column;
}

.nav-links {
    margin-top: 15px;
    flex-direction: column;
    text-align: center;
}

.nav-links li {
    margin: 10px 0;
}

.hero h1 {
    font-size: 2rem;
}

}