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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    background-color: #f4f4f4;
}

header {
    background: #1e1e1e;
    color: #fff;
    padding: 1rem 0;
}

.container {
    width: 90%;
    margin: 0 auto;
    max-width: 1200px;
}

.logo img {
    width: 550px;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger .bar {
    height: 3px;
    width: 25px;
    background: #fff;
    margin: 4px 0;
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #00aaff;
}

main {
    padding: 2rem 0;
}

section {
    padding: 2rem 0;
}

h1, h2 {
    color: #1e1e1e;
}

footer {
    background: #1e1e1e;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        text-align: center;
    }

    .nav-links.nav-active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .nav-links li {
        margin: 1rem 0;
    }
}