* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Open Sans", sans-serif;
}

body {
    min-height: 100vh;
    background: linear-gradient(0deg, #000b 60%, #000c), url('img/Curitiba.png') no-repeat center center fixed;
    background-size: cover;
    color: #eee;
    font-size: 14px;
}

header {
    width: 80%;
    height: 50px;
    padding-top: 30px;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 2;
    margin: auto;
}

header nav {
    display: flex;
    gap: 40px;
}

header a {
    color: #eee;
    margin-right: 0;
    font-weight: 300;
    font-size: 20px;
    text-decoration: none;
    padding: 8px 18px;
    border-radius: 20px;
    transition: background 0.2s, color 0.2s;
}

main {
    max-width: 600px;
    background: #000c;
    margin: 60px auto 0 auto;
    padding: 32px 28px 40px 28px;
    border-radius: 12px;
    box-shadow: 0 4px 24px #0008;
    backdrop-filter: blur(2px);
}

h1 {
    font-size: 2.2rem;
    color: #fff;
    margin-bottom: 18px;
    font-family: 'Open Sans', Arial, sans-serif;
    font-weight: 700;
}

h2 {
    font-size: 1.3rem;
    color: #b3e0ff;
    margin-top: 28px;
    margin-bottom: 10px;
    font-weight: 600;
}

ul {
    margin-left: 18px;
    margin-bottom: 18px;
}

li {
    margin-bottom: 7px;
    font-size: 1rem;
}

p,
label {
    color: #eee;
    font-size: 1rem;
}

form {
    margin-top: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

input,
textarea {
    padding: 8px 10px;
    border: 1px solid #b0b8c1;
    border-radius: 6px;
    font-size: 1rem;
    background: #222c;
    color: #fff;
    resize: vertical;
}

input:focus,
textarea:focus {
    outline: 2px solid #b3e0ff;
    border-color: #b3e0ff;
    background: #222e;
}

button[type="submit"] {
    background: #eee;
    color: #003366;
    border: none;
    border-radius: 20px;
    padding: 10px 0;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: background 0.2s, color 0.2s;
}

button[type="submit"]:hover {
    background: #003366;
    color: #fff;
}

a {
    color: #b3e0ff;
    text-decoration: underline;
}

@media (max-width: 700px) {
    main {
        max-width: 95vw;
        padding: 18px 6vw 28px 6vw;
    }

    header {
        width: 98vw;
        padding-top: 18px;
    }

    header nav {
        gap: 18px;
    }

    h1 {
        font-size: 1.5rem;
    }
}