body {
       background: black;
       font-family: Montserrat, sans-hegarty, sans-serif;
       color: white;
       margin: 0;
       padding: 0;
    }

.banner {
    height: 50px;
}


/* nav bar */ 
header {
     background-color: black;
     height: 90px;
     padding: 20px;
     padding-bottom: 20px;
     text-align: center;
   
    }

header a {
    color: white;  
    text-decoration: none;
    text-transform: uppercase;
    margin-top: 40px; 
         }

.nav-links {
   display: center;
}
.nav-links ul {
         list-style-type: none;
         align-items: end;
         margin: 0px;
         overflow; hidden;
         background: black;
         padding-bottom: 12px;
         border-bottom: 1px solid gold;
         padding: 10px 10px; 
       }

.nav-links ul li {
        display: inline-block;   
        padding: 2px; 
        margin-left: 20px;
        font-size: 20px;
           } 

.nav-links li:first-child {
        margin-left: 0px; 
        }  

.nav-links li a:hover {
        text-underline-offset: 4px;
        color: gold;
        transition: color 0.2s;
        }


/* title */    
h1 {
   display: flex;
   justify-content: center;
   padding-top: 0px;
   }

/* features: icon boxes */ 

.features {
    background: black;
    margin: auto;
    width: 80%;
    color: gray;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.features figure a:hover {
    opacity: 85%;
}
       
.features figure {
    text-transform: uppercase;
    text-align: center;
    width: 200px;
}

.features figure img {
    border: 3px solid white;
    border-radius: 10%;
    box-shadow: gray 0 0 10px;
    width: 180px;
}
.features a {
    text-decoration: none;
}
.features a {
    color: white;
}
.features a:visited {
    color: white;
}
.features a:hover {
    color: gold;
}
.schedule {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;

}
.day {
    width: 250px;
    height: 220px;
    font-size: 1rem;
    border-radius: 5%;
    box-shadow: gray 0 0 10px;
    padding-left: 20px;
    padding-right: 20px;
    padding-bottom: 20px;
    border: 2px white solid;
    margin-bottom: 5px;
}


/* Exercise Box */    
h2 {
    display: flex;
    justify-content: center;
    }

.exercise {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 50px;
 
}

.info {
    width: 450px;
    height: 240px;
    font-size: 1.2rem;
    border-radius: 5%;
    padding-left: 20px;
    padding-right: 20px;
   
}

.info p {
    font-weight: 600;
}

.video {
    width: 320px;
    height: 240px;
    border-radius: 5%;
    box-shadow: gray 0 0 10px;
    padding-left: 20px;
    padding-right: 20px;
    margin-bottom: 40px;
    border: 2px white solid;
}

.cardioinfo {
    padding-left: 170px;
}

.info-one {
    flex-basis: auto; 
    text-align: center;
    font-size: 1.2rem;
    border-radius: 5%;
    padding-top: 1px;
    padding-bottom: 10px;
    padding-left: 20px;
    padding-right: 20px;
    margin-bottom: 20px;
}

.info-two {
   height: 100px;
    text-align: center;
    font-size: 1.2rem;
    border-radius: 5%;
    box-shadow: gray 0 0 10px;
    padding-left: 20px;
    padding-right: 20px;
    border: 2px white solid;
    margin-bottom: 20px;
}

/* Leg Press*/  
.leg-info {
    width: 280px;
    height: 140px;
    font-size: 1rem;
    border-radius: 5%;
    box-shadow: gray 0 0 10px;
    padding-left: 20px;
    padding-right: 20px;
    border: 2px white solid;
    margin-bottom: 20px;
}

/* Knee*/ 
.topknee {
    display: flex;
    justify-content: center;   
}

.topknee img {
    height: 450px;
    border-radius: 2%;
    margin-bottom: 10px;
}

.knee {
    display: flex;
    flex-direction: column;
    justify-content: center;  
    margin: auto;
    font-size: 1.2rem;
    padding-left: 10px;
    padding-right: 10px;
    width: 60%;  
}

.knee h3 {
   margin: 0px; 
   margin-top: 10px;
}

.knee-muscles li{
    margin-bottom: 20px;
}

.knee-exercise {
    margin-bottom: 20px;
}


/* Footer */        
.footer {  
    width: 100%;
    margin-top: 30px;
    margin-bottom: 60px;    
    font-size: 1.2rem;
    text-align: center;
}    

.fas {
    padding-top: 10px;
    display: flex;
    gap: 25px;
    font-size: 1.5rem;
    justify-content: center;
}

.fas a:visited {
    color: white;
}

.fas a:hover {
    color: gold;
}

header .fa {
    display: none;
}

nav .fa {
    display: none;
}



/* Web Responsive */ 
@media (max-width: 680px) {

header {
    height: 40px;
}

.exercise {
    text-align: center;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0px;
     }

.video {
    border: 2px white solid;
}     

.info {
    font-size: 1rem;
}

.nav-links ul li{
      display: block; 
      padding-bottom: 10%;
}

#home {
    padding-left: 11%;
}

.nav-links{
    position: fixed;
    background: black;
    opacity: 95%;
    height: 100vh;
    width: 200px;
    top: 0; 
    right: -200px;
    text-align: left;
    z-index: 2;
    transition: 1s;
}

.nav-links .fa {
    display: flex;
    justify-content: flex-end;
    color: white;
    margin: 10px;
    font-size: 22px;
    cursor: pointer;
  
}

header .fa {
    font-size: 22px;
    position: fixed;
    margin-top: 10px;
}

.features {
        flex-direction: column;
        align-items: center;
    }
.topknee img {
    height: 240px
}
.knee {
    width: 85%;
    font-size: 1.1rem;
}
}