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

body{
    font-family: Arial,sans-serif;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;  
}

.container{
    background: white; /* fundo branco da div principal */
    border-radius: 20px;
    padding: 20px;
    max-width: 450px;
    width: 100%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

h1{
    color: #128C7E;
    margin-bottom: 20px;
    text-align: center;
}

label{
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: bold;
}

input, textarea{
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
}

input:focus, textarea:focus{
    outline: none;
    border-color: #25D366;
}

textarea{
    resize: none;
    height: 80px;
}

/* Aumenta espaço superior do bloco "Mensagem (opcional)" */
.input-group:nth-of-type(2){
    margin-top: 20px;
}

button{
    width: 100%;
    padding:14px;
    margin: 10px 0;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-gerar{
    background: #25D366;
    color: white;
}

.btn-gerar:hover{
    background: #128C7E;
}

.btn-copiar{
    background: #0088cc;
    color: white;
}

.btn-copiar:hover{
    background: #006699;
}

#resultado{
    display: none;
    margin-top: 20px;
    padding: 15px;
    background: #f0f0f0;
    border-radius: 8px;
    word-break: break-all;
}

#resultado.mostrar{
    display: block;
}

.link-gerado{
    color:#0088cc;
    font-size: 14px;
    margin: 10px 0;
}

.sucesso{
    color: green;
    text-align: center;
    margin-top: 10px;
}