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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

header {
    background: #0a0a0a;
    color: #fff;
    padding: 15px 0;
}

.logo {
    float: left;
}

nav {
    float: right;
}

nav ul {
    list-style: none;
}

nav ul li {
    display: inline;
    margin-left: 20px;
}

nav a {
    color: #fff;
    text-decoration: none;
}

.hero {
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: #fff;
    padding: 100px 0;
    text-align: center;
}

.btn {
    display: inline-block;
    background: #fff;
    color: #007bff;
    padding: 10px 20px;
    margin-top: 20px;
    text-decoration: none;
    border-radius: 5px;
}

section {
    padding: 60px 0;
    text-align: center;
}

.cards {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 20px;
}

.card {
    background: #f4f4f4;
    padding: 20px;
    border-radius: 10px;
    width: 30%;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

input, textarea {
    padding: 10px;
    width: 100%;
}

button {
    padding: 10px;
    background: #007bff;
    color: #fff;
    border: none;
}

footer {
    background: #0a0a0a;
    color: #fff;
    text-align: center;
    padding: 20px;
}

/* Responsivo */
@media(max-width: 768px) {
    .cards {
        flex-direction: column;
    }

    .card {
        width: 100%;
    }

    nav {
        float: none;
        text-align: center;
        margin-top: 10px;
    }

    .logo {
        float: none;
        text-align: center;
    }
}