estilo.css

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

body{
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

form{
    width: 350px;
    border: 1px solid #c4c4c4;
    padding: 16px;
    border-radius: 10px;
}

form label{
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: bold;

}

form input, form select{
    width: 100%;
    height: 40px;
    margin-bottom: 10px;
    border-radius: 5px;
    border: 1px solid #c4c4c4;
    padding-left: 10px;
    transition-duration: 500ms;
    outline-color: #c4c4c4;
}

form input:focus{
    outline-color: crimson;
}

form .lado-a-lado{
    display: flex;
    gap: 16px;
}

form .lado{
    width: 50%;
}

form textarea{
    width: 100%;
    margin-bottom: 10px;
    resize: none;
    border-radius: 5px;
    border: 1px solid #c4c4c4;
    padding-left: 10px;
    transition: 500ms;
}

form textarea:focus{
    outline-color: crimson;
}

form button{
    width: 100%;
    height: 46px;
    background-color: crimson;
    border: 0;
    color: white;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: bold;
    border-radius: 5px;
    transition-duration: 500ms;
    cursor: pointer;
}

form button:hover{
    background-color: #ad102f;
}