@import url('https://fonts.googleapis.com/css?family=Poppins:400,500,600,700&display=swap');

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

nav{
    height: 80px;
    background: #1b1b1b;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0px 50px 0px 100px;
}

nav .logo{
    font-size: 33px;
    color: #fff;
    font-weight: 600;
}

nav ul{
    display: flex;
    list-style: none;
    
}

nav ul li {
    margin: 0 5px;
}

nav ul li a{
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 1px;
    padding: 8px 10px;
    border-radius: 5px;
    transition: all 0.3 ease;
}

nav ul li a:hover,
nav ul li a.active{
    color: #1b1b1b;
    background: #fff;
}

nav .menu-btn i {
    color: #fff;
    font-size: 22px;
    cursor: pointer;
    display: none;
}

#click{
    display: none;
}

#click:checked ~ .menu-btn i::before{
    content: "\f00d";
}

@media (max-width: 940px) {
    nav .menu-btn i {
        display: block;
    }

    nav ul{
        position: fixed;
        top: 80px;
        left: -100%;
        background: #111;
        height: 100vh;
        width: 100%;
        display: block;
        text-align: center;
        transition: all 0.3s ease;
    }
    #click:checked ~ ul{
        left: 0%;
    }
    nav ul li{
        margin: 40px 0;
    }
    
    nav ul li a{
        font-size: 20px;
        display: block;
    }

    nav ul li a:hover,
    nav ul li a.active{
        color: cyan;
        background: none;
    }
}

/* Botão voltar */
.back-btn {
position: fixed;
top: 20px;
left: 20px;
background: #38bdf8;
color: #0f172a;
padding: 10px 16px;
border-radius: 8px;
text-decoration: none;
font-weight: 600;
transition: all 0.3s ease;
box-shadow: 0 5px 15px rgba(56, 189, 248, 0.3);
}

/* Hover */
.back-btn:hover {
background: #0ea5e9;
transform: translateY(-2px);
box-shadow: 0 8px 20px rgba(56, 189, 248, 0.5);
}