.sindicato-login-container, .sindicato-painel-container {
    max-width: 600px;
    margin: 40px auto;
    padding: 30px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.sindicato-login-container h2, .sindicato-painel-container h2 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #34495e;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
}

.btn-login, .btn-gerar-qr {
    width: 100%;
    padding: 14px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-login:hover, .btn-gerar-qr:hover {
    background-color: #2980b9;
}

.brinde-card {
    border: 1px solid #eee;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    background: #f8f9fa;
}

.brinde-card h3 {
    margin-top: 0;
    color: #2c3e50;
}

#qrcode-modal {
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
    border-radius: 15px;
}

#qrcode {
    margin: 20px auto;
    display: flex;
    justify-content: center;
}

#qrcode-modal button {
    margin-top: 20px;
    padding: 10px 20px;
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}