body {
    background-color: #ffffff;
    font-family: Arial, sans-serif;
    color: #333;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 500px;
    margin: auto;
    padding: 20px;
    text-align: center;
}

.logo-center {
    width: 180px;
    display: block;
    margin: 0 auto 10px auto;
}

header h1 {
    color: #009688; /* Verde água */
}

.form-sorteio {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: #e0f7fa; /* Azul claro */
    padding: 15px;
    border-radius: 8px;
}

.form-sorteio label {
    font-weight: bold;
    text-align: left;
}

.form-sorteio input {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.btn-sortear {
    background-color: #009688; /* Verde água */
    color: white;
    padding: 15px;
    font-size: 18px;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

.btn-sortear:hover {
    background-color: #00796b;
}

.resultado {
    margin-top: 20px;
    background: #b2ebf2; /* Azul claro */
    padding: 10px;
    border-radius: 8px;
}

.erro {
    color: red;
    font-weight: bold;
}