body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: #007bff;
    color: #fff;
    padding: 20px 0;
    text-align: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

header h1 {
    margin: 0;
    font-size: 2em;
}

section {
    scroll-margin-top: 140px;
}

nav {
    display: center;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0 10px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    display: inline-block;
}

nav ul li a:hover {
    background-color: #0056b3;
    border-radius: 5px;
}

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

.burger div {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 5px;
    transition: all 0.3s ease;
}

main {
    margin-top: 100px; /* Ajuste para evitar sobreposição do header */
    padding-bottom: 80px; /* Ajuste para evitar sobreposição do footer */
}

.hero, .about, .features, .pricing, .contact {
    padding: 50px 20px;
    text-align: center;
}

.hero {
    background-color: #007bff;
    color: #fff;
}

.hero h2 {
    font-size: 2.5em;
}

.hero p {
    font-size: 1.2em;
}

.cta {
    background-color: #28a745;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    display: inline-block;
    margin-top: 20px;
}

.cta:hover {
    background-color: #218838;
}

.features ul {
    list-style: none;
    padding: 0;
}

.features ul li {
    background: #f9f9f9;
    margin: 10px 0;
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.pricing {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.price-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin: 20px;
    padding: 20px;
    width: 300px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.price-card:hover {
    transform: scale(1.05);
}

.price-card h3 {
    margin-top: 0;
}

.price-card p {
    font-size: 24px;
    color: #007bff;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    position: relative;
    width: 100%;
}

.contact a {
    color: #007bff;
    text-decoration: none;
}

.contact a:hover {
    text-decoration: underline;
}

/* Responsividade */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: auto;
        background-color: #007bff;
        justify-content: center;
        align-items: center;
        transition: transform 0.3s ease-in-out;
    }

    nav ul.nav-active {
        transform: translateX(0);
        left: 0;
    }

    nav ul li {
        margin: 20px 0;
    }

    .burger {
        display: block;
    }

    .burger.toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .burger.toggle .line2 {
        opacity: 0;
    }

    .burger.toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}