body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #121212;
    color: white;
    text-align: center;
}

header {
    background: rgba(0, 0, 0, 0.8);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    margin: 0 auto;
}

nav h1 {
    font-size: 24px;
}

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

nav ul li {
    display: inline;
}

nav ul li a {
    text-decoration: none;
    color: white;
    font-size: 18px;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #ff4444;
}

.hero {
    height: 100vh;
    background: url('https://source.unsplash.com/1600x900/?firefighter,firetruck') center/cover no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 10px;
}

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

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: #ff4444;
    color: white;
    font-size: 20px;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #cc0000;
}