*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: all 0.4s;
}

body{
    font-family: sans-serif;
}

a{
    text-decoration: none;
    color: black;
    font-size: 1.3rem;
    font-weight: bold;
}

/* navbar styling */
.navbar{
    display: flex;
    height: 5rem;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-bottom: 2px solid rgb(223, 251, 219);
}

/* iframe styling */
.container {
  position: relative;
  width: 100%;
  overflow: hidden;
  padding-top: 75%; /* 4:3 Aspect Ratio */
}

.responsive-iframe {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.hamburger-menu{
    padding-right: 1.5rem;
    cursor: pointer;
}

.hamburger-menu .line{
   display: block;
   width:2.5rem;
   height: 2px;
   margin-bottom: 10px;
   background-color: black;
   cursor: pointer;
}

.nav-menu{
    position: fixed;
    width: 94%;
    top: 6rem;
    left: 18px;
    background-color: rgb(255, 255, 255);
    font-weight: 600;
}

.nav-menu a{
    display: block;
    text-align: center;
    padding: 5px 0;
}

.nav-menu a:hover{
    background-color: rgb(223, 251, 219);
}

.hide{
    display: none;
}

/* for Desktop view  */
@media screen and (min-width:600px){
    .navbar{
        justify-content: space-around;
    }
    .nav-menu{
        display: block;
        position: static;
        width: auto;
        margin-right:20px;
        background: none;
    }
    .nav-menu a{
        display: inline-block;
        padding: 15px 20px;
    }
    .nav-menu a:hover{
        background-color: rgb(223, 251, 219);
        border-radius: 5px;
    }
    .hamburger-menu{
        display: none;
    }
}