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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 0 2rem;
}

.main-header {
    background-color: #333;
    color: #fff;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 100;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1100px;
    margin: auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
}

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

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

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
    padding: 5px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .line {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 5px 0;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 65px;
        left: 0;
        background-color: #333;
        text-align: center;
    }

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

    .nav-links li {
        margin: 15px 0;
    }

    .hamburger {
        display: block;
    }
}

.content {
    padding: 2rem 0;
}

.content h1 {
    margin-bottom: 1rem;
}