* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f4f4f4;
    color: #1a1a1a;
}

main {
    max-width: 760px;
    margin: 50px auto;
    padding: 20px;
}

.wide {
    max-width: 1050px;
}

h1 {
    color: #b38b27;
    text-align: center;
    margin-bottom: 8px;
    font-size: 32px;
}

h2 {
    text-align: center;
    color: #111;
    margin-top: 5px;
}

.card {
    background: #ffffff;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #dddddd;
    border-top: 5px solid #b38b27;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

label {
    display: block;
    margin-top: 18px;
    margin-bottom: 6px;
    font-weight: bold;
}

input,
select {
    width: 100%;
    padding: 13px;
    border: 1px solid #cccccc;
    border-radius: 6px;
    font-size: 16px;
    background: #ffffff;
}

input:focus,
select:focus {
    outline: none;
    border-color: #b38b27;
    box-shadow: 0 0 0 2px rgba(179,139,39,0.15);
}

button,
.btn {
    display: inline-block;
    width: 100%;
    margin-top: 22px;
    padding: 14px 20px;
    background: #111111;
    color: #d4af37;
    border: 1px solid #d4af37;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

button:hover,
.btn:hover {
    background: #d4af37;
    color: #111111;
}

.ok {
    color: #16803c;
    font-weight: bold;
}

.erro {
    color: #b42318;
    font-weight: bold;
}

.codigo {
    font-family: monospace;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 2px;
}

img {
    max-width: 100%;
    height: auto;
}

@media (max-width: 600px) {
    main {
        margin: 20px auto;
        padding: 12px;
    }

    .card {
        padding: 20px;
    }

    h1 {
        font-size: 26px;
    }
}