@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400..900&family=Quantico:ital,wght@0,400;0,700;1,400;1,700&display=swap');

*{
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
    font-family: "Quantico", sans-serif;
}

header{
    background-color: blue;
    color: white;
    padding: 5px 20px;
    height: 84px;
    display: flex;
    align-items: center;
}

header h1{
    /* width: calc(100% - 80px); 
    float: right; */
    text-align: center;   
    flex-grow: 1;
    
}

nav{
    background-color: greenyellow;
}

nav ul{
    display: flex;
    gap: 20px;
    padding: 5px 20px;
    height: 30px;
    align-items: center;
    justify-content: space-evenly;
}

nav ul li{
    list-style: none;
}

nav ul li a{
    text-decoration: none ;
    color: black;
}

#active{
    text-decoration: underline;
}

main{
    background-color: aqua;
    min-height: calc(100vh - 40px - 30px - 74px);
    padding: 30px 20px 50px 20px;
}

main p{
    font-family: "Quantico", sans-serif;
}

#march{
border-collapse: collapse;
}

#march th, #march td{
    border: 3px solid red;
    padding: 2px;
    width: 70px;
    height: 30px
}

#march td{
    text-align: right;
    transition: 0.5s;
}

#march td:not(.past):hover{
    background-color: blue;
    color: white;
}

.past{
    opacity: 0.4;
}

#merge_cells{
    border-collapse: collapse;
}

#merge_cells td{
    border: 5px solid blue;
    text-align: center;
    padding: 20px;
    font-size: 30px;
}

footer{
    background-color: grey;
    height: 30px;
    position: fixed;
    bottom: 0px;
    left: 0px;
    right: 0px;
    text-align: center;
    line-height: 30px;
    color: white;
}