body {
    font-family: 'Nunito', sans-serif;
    background-color: #f0f4f8; /* Um cinza azulado bem claro */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px; /* Adiciona um padding para telas pequenas */
    box-sizing: border-box;
}

.auth-container {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.auth-logo {
    max-width: 180px;
    margin-bottom: 20px;
}

.auth-container h2 {
    font-size: 2em;
    font-weight: 900;
    color: #333;
    margin: 0 0 10px 0;
}

.auth-container .subtitle {
    color: #777;
    margin-bottom: 30px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    color: #555;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 1em;
    box-sizing: border-box; /* Garante que o padding não aumente a largura */
    transition: border-color 0.3s, box-shadow 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: #4CAF50; /* Verde do nosso tema */
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
}

.btn {
    width: 100%;
    padding: 15px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-top: 10px;
}

.btn:hover {
    background-color: #45a049;
}

.switch-page-link {
    margin-top: 25px;
    color: #555;
}

.switch-page-link a {
    color: #4CAF50;
    font-weight: 700;
    text-decoration: none;
}

.switch-page-link a:hover {
    text-decoration: underline;
}

/* --- CORREÇÃO APLICADA AQUI --- */
.form-row {
    display: grid;
    /* Por padrão (mobile), tem 1 coluna e o gap vertical é aplicado */
    gap: 20px;
}

.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 8px;
    border: 1px solid transparent;
    text-align: center;
    font-weight: 700;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

/* Em telas maiores, muda para 2 colunas */
@media (min-width: 576px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}