*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style-type: none;
    text-decoration: none;
    font-family: "Open Sans", sans-serif;
}
html, body {
    overflow-x: hidden;
}
:root{
    --primary-color: #c7ecee;
    --primary-light: #c7eceec7;
}
.d-flex{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}
.min-vh-80{
    min-height: 80vh;
}
.navbar{
    padding: 10px;
    justify-content: space-around;
    box-shadow: 1px 1px 2px 1px lightgray;
    position: relative;
    z-index: 1;
}
.btn{
    background-color: var(--primary-color);
    color: black;
    text-transform: capitalize;
    letter-spacing: 1px;
    border: 2px solid black;
    border-radius: 3px;
    margin: 10px;
    padding: 10px;
    font-size: 20px;
    transition: all 0.3s;
    display: inline-block;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
}
.btn:hover,.btn.active{
    color: var(--primary-color);
    background-color: black;
}
.toggle-btn{
    display: none;
    position: fixed;
    top: 10px;
    left: 0;
}
.logo img{
    width: 90px;
}
.heading-box{
    text-align: center;
    padding: 20px 10px;
    font-size: 1.2em;
    text-transform: uppercase;
    color: black;
    letter-spacing: 1px;
}
.heading-box h1{
    text-shadow: 3px 3px 3px lightgray;
}
.footer{
    background-color: var(--primary-color);
    color: black;
    justify-content: space-around;
    align-items: flex-start;
    padding: 20px;
}
.footer .box{
    text-align: center;
    margin: 20px;
}
.footer .box h2{
    text-transform: uppercase;
    padding-bottom: 10px;
    font-size: 2em;
}
.footer .box p,.credit{
    letter-spacing: 1px;
    font-size: 20px;
}
.credit{
    text-align: center;
    background-color: var(--primary-color);
    color: black;
    padding: 15px;
}
.contact-box{
    margin: 20px auto;
}
.contact-card{
    color: black;
    background-color: var(--main-color);
    border: 2px solid black;
    width: 300px;
    font-size: 20px;
    border-radius: 5px;
    margin: 10px;
    padding: 20px 10px;
    transition: 0.2s;
}
.contact-card:hover{
    color: var(--primary-color);
    background-color: black;
}
@media (max-width: 770px){
    .toggle-btn{
        display: inline-block;
    }
    .nav-menu{
        transform-origin: 0 0;
        width: 100%;
        transition: all .4s;
        position: fixed;
        top: 0;
        left: 0;
        transform: rotate(90deg);
        background-color: var(--primary-color);
    }
    .nav-menu.active{
        transform: rotate(0);
    }
    .nav-menu ul{
        flex-direction: column;
        min-height: 100vh;
    }
    .nav-menu ul li a{
        min-width: 110px;
    }
    .heading-box{
      font-size: 1em;
      padding: 10px;
      margin: 20px auto;
    }
    .footer{
        padding: 10px;
    }
    .footer .btn{
        margin: 5px;
    }
}
@media (max-width: 430px){
    .footer .box{
        margin: 20px 0px;
        width: 100%;
    }
}