* {
        box-sizing: border-box;
    }
    
    body {
        margin: 0;
        padding: 0;
        font-family: Helvetica, sans-serif;
        background-color:rgb(0, 0, 0, 0.1);
    }
    
    .fundo img{
        position: absolute;
        width: 100%;
        height: 100vh;
    }
    
    
    /* === MENU === */
    
    nav {
        position: relative;
        height: 100vh;
    }
    
    nav input ~ label {
    cursor: pointer;
    }
    
    label img{
        margin-top: 15%;
        width: 23%;
        margin-left: 38%;
    }
    
    nav input {
        display:none; 
    }
    
    nav input:checked ~ ul {
        display: block;
    }
    
    nav a {
        text-decoration: none;
    }
    nav ul {
        padding: 1vmin;
        margin: 0;
        display: none;
    }
    ul li {
        display: block;
        margin: 1vmin 3vmin;
        border: 0;
        font-weight: bold;
    }
    
    ul li a {
        color: rgb(168, 168, 168);
        text-decoration: none;
        text-align: center;
        display: block;
        padding: 1%;
    }

    ul li a:hover {
color: #fff ;
overflow: scroll;
background-color: rgb(255, 255, 255, 0.30);
}

ul li ul{
display: none;

}

ul li:hover ul{
display: block;
}

ul li ul li a{
color: rgb(168, 168, 168);
text-decoration: none;
text-align: center;
display: block;
padding: 1%;
float: left;
font-size: 12px;
border: none;

}

ul li ul li a:hover{
 color: rgb(0, 0, 0) ;
overflow: scroll;
background-color: rgba(255, 255, 255, 0.60);
font-size: 15px;
}

/* === conteudo === */

.sobre {
width: 100%;
height: 50vh;
position: relative;
background-color: #fff;
}

p {
font-size: 18px;
margin-left: 7%;
margin-right: 7%;
}

h2{
font-size: 80px;
font-weight: bold;
padding-top: 3%;
padding-left: 7%;
}

h4{
font-size: 30px; 
padding-top: 1%;
padding-left: 7%;
}

button{
color: #fff;
background-color: black;
width:13%;
height: 25px;
cursor: pointer;
border: none;
box-shadow: 0 5px 5px 0 rgba(0,0,0,0.24),0 5px 5px 0 rgba(0,0,0,0.19);
}

.botao{
margin-left: 5%;
padding: 2%;

}

.h2{
    text-align: center;
    margin-left: -7%;
}

.trabalho1{
position: relative;
background-color:#fff;
width: 100%;
height: 110vh;
margin-top: 4%;

}

.trabalho1 img{
width: 53%;
height: auto; 
float: right;
margin-right: 7%;
}

.textobtn1{
    float: left;
    width: 35%;
    margin-left: 4.5%;
}


.trabalho2{
position: relative;
background-color:#fff;
width: 100%;
height: 110vh;
margin-top: 5%;
}

.trabalho2 iframe{
 width: 53%;
height: 540px;
margin-right: 7%;
float: right;
}

.textobtn2{
    float: left;
    width: 35%;
    margin-left: 4.5%;
}


.trabalho3{
position: relative;
background-color:#fff;
width: 100%;
height: 90vh;
margin-top: 5%;
}

.trabalho3 img{
width: 53%;
height: auto;
margin-right: 7%;
float: right;
}

.textobtn3{
    float: left;
    width: 35%;
    margin-left: 4.5%;
}

.trabalho4{
position: relative;
background-color:#fff;
width: 100%;
height: 90vh;
margin-top:5%;
}

.slides{
    width: 55%;
    float: right;
    margin-right: 4%;
}
.mySlides {
display:none;
width: 90%;
margin-left: 5%;
}
.w3-left, .w3-right, .w3-badge {
cursor:pointer;
}
.w3-badge {
height:18px;
width:13px;
padding:0;
}

.textobtn4{
    float: left;
    width: 35%;
    margin-left: 4.5%;
}

.luis{
position: relative;
background-color: #fff;
width: 100%;
height: auto;
margin-top: 4%;
text-align: center;
}

.luis h4{
    padding-left: 0;
}


.contactos p{
font-size: 15px;

text-align: center;
}

.contactos button{
float: left;
margin-left: 2%;
color: #fff;
background-color: black;
width:15%;
height: 25px;
cursor: pointer;
border: none;
box-shadow: 0 5px 5px 0 rgba(0,0,0,0.24),0 5px 5px 0 rgba(0,0,0,0.19); 
}

.pedro{
position: relative;
background-color: #fff;
width: 100%;
height: auto;
margin-top:3%;
text-align: center;
}
.pedro h4{
    padding-left: 0;
}

.botaocontactos{
margin-left: 36%;
padding: 40px;
}

footer{
position: relative;
margin-top: 10%;
}

footer p{
text-align: center;
font-size: 12px;
color: rgb(0, 0, 0, 0.5);

}

.btn-voltar img{
width: 5%;
position: fixed;
bottom: 40px;
right: 10px;
cursor: pointer;
}

/* === tablet === */

@media(max-width:1200px){

label img{
        margin-top: 13%;
        width: 28%;
        margin-left: 36%;
}

ul li ul li a{
    float: none;
}

h4{
    font-size: 30px; 
    padding-top: 3%;
    padding-left: 7%;
}

.h2{
    text-align: left;
    margin-left: 0;
}

.trabalho1{
    height: 160vh;
}
    
.trabalho1 img{
    width: 86%;
}
    
.textobtn1{
        width: 100%;
        margin-left: 0;
}

.trabalho2{
    height: 140vh;
}
        
.trabalho2 iframe{
    width: 86%;
}
        
.textobtn2{
    width: 100%;
    margin-left: 0;
}
        
.trabalho3{
    height: 135vh;
}
    
.trabalho3 img{
    width: 86%;
}
    
.textobtn3{
    width: 100%;
    margin-left: 0;
}
    
.trabalho4{
    height: 130vh;
}
    
.slides{
     width: 100%;
}
    
.mySlides {
    display:none;
    width: 90%;
    margin-left: 9%;
}
   
.textobtn4{
    width: 100%;
    margin-left: 0;
}
    
.luis{
    text-align: left;
}
    
.luis h4{
    padding-left: 7%;
}
    
    
.contactos p{  
    text-align: left;
}
    
    
.pedro{
    text-align: left;
}

.pedro h4{
    padding-left: 7%;
}
    
.contactos button{
    margin-left: 1%;
    width:12%;   
}

.botaocontactos{
    margin-left: 2%;
    padding: 35px;
}
}

/* === mobile === */

@media(max-width: 880px){
    
nav input ~ label {
    margin-left: 28%;
}
    
label img{
        margin-top: 32%;
        width: 30%;
        margin-left: 7%;
}

.sobre {
height: auto;
}

p {
font-size: 15px;
}

h2{
font-size: 50px;
}

h4{
font-size: 20px; 
padding-top: 0;
}

button{
width:20%;
}

.botao{
margin-left: 40%;
}

.h2{
    text-align: left;
    margin-left: 0;
}

.trabalho1{
height: 155vh;
}

.trabalho1 img{
width: 100%;
float: none;
margin-left: 0;
}

.textobtn1{
     width: 100%;
    margin-left: 0;
}


.trabalho2{
height: 155vh;
}

.trabalho2 iframe{
 width: 100%;
height: 340px;
margin-left: 0;
float: none;
}

.textobtn2{
    width: 100%;
    margin-left: 0;
}


.trabalho3{
height: 135vh;

}

.trabalho3 img{
width: 100%;
margin-left: 0;
float: none;
}

.textobtn3{
    width: 100%;
    margin-left: 0;
}

.trabalho4{
height: 140vh;
}

.slides{
    width: 100%;
    float: none;
    margin-right: 0;
}
.mySlides {
display:none;
width: 100%;
margin-left: 0;
}

.textobtn4{
    width: 100%;
    margin-left: 0;
}

.luis{
position: relative;
background-color: #fff;
width: 100%;
height: auto;
margin-top: 4%;
text-align: left;
}

.luis h4{
    padding-left: 0;
    margin-left: 7%;
}


.contactos p{
text-align: left;
}

.contactos button{
margin-left: 2%;
width:25%; 
}

.pedro{
text-align: left;
}
.pedro h4{
    padding-left: 0;
    margin-left: 7%;
}

.botaocontactos{
margin-left: -4%;
padding: 40px;
}

.btn-voltar img{
    width: 5%;
    position: fixed;
    bottom: 40px;
    right: 40px;
    cursor: pointer;
    }
}