style.css

html{
    background-color: #363941;
}

body{
    margin: 0;
    font-family: Arial, sans-serif;
}

a {
    text-decoration: none;
}

* {
  touch-action: manipulation;
}

.flex{
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 2rem;
}
.banner{
    text-align: center;
    background-color: #2a2c30;
    color: #dcddde;
    font-size: 30px;
    font-weight: bold;
    padding: 1.5rem;
    height: 2rem;

    position: relative;
}

.banner a {
    color: #dcddde;
}

.nav {
    /* position: relative; */
    color: #dcddde;
}

.nav .dropdown {
    text-align: left;
    display: none;
    position: absolute;
    background-color: #2a2c30;

    list-style-type: none;
    padding-inline-start: 0;
    margin-block-start: 0;
    margin-block-end: 0;

    right: 0;
    top: 5rem;

    font-size: 1.2rem;

}
.nav .dropdown.open {
    display: block;
}

.nav .dropdown li {
    border: 0.2rem solid #dcddde;
    border-bottom: none;
}
.nav .dropdown li:last-child {
    border-bottom: 0.2rem solid #dcddde;
}
.nav .dropdown li:hover {
    background-color: rgba(0, 0, 0, 0.2);
}
.nav .dropdown li a {
    display: block;
    padding: 1rem;
}

/* https://worstpractice.dev/frontend/create-a-simple-hamburber-menu-with-css */
.burger {
    z-index: 2;
    position: absolute;
    width: 3rem;
    height: 3rem;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem;
    cursor: pointer;
}

.burger span,
.burger span::before,
.burger span::after {
    content: '';
    display: block;
    width: 2rem;
    height: 0.25rem;
    position: absolute;
    margin-top: 1rem;
    background: #dcddde;
    /* border-radius: 0.3rem; */
}

.burger span::before {
    margin-top: -0.6rem;
}

.burger span::after {
    margin-top: 0.6rem;
}
.setting_icon{
    z-index: 2;
    position: absolute;
    width: 3rem;
    height: 3rem;
    top: 1rem;
    right: 5rem;
    padding: 0.5rem;
    cursor: pointer;
}
#setting, #score {
    display: none;
    z-index: 100;
    height: 100vh;
    width: 100vw;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.75);
    color: #dcddde;
}
#setting.open, #score.open {
    display: block;
}

.close-button {
    padding: 1rem;
    cursor: pointer;

    position: absolute;
    right: 1rem;
    top: 1rem;
    width: 2rem;
    height: 2rem;
}

.close-button:before, .close-button:after {
    position: absolute;
    left: 15px;
    content: ' ';
    height: 2rem;
    width: 0.2rem;
    background-color: #dcddde;
  }
.close-button:before {
    transform: rotate(45deg);
}
.close-button:after {
    transform: rotate(-45deg);
}  

.settings-container, #score-container{
    border: 0.2rem solid #dcddde;
    background-color: #363941;
    padding: 2rem 5rem;
    margin: 5rem auto;
    width: 25rem;
    position: relative;
    text-align: center;
}

.settings-container h1 {
    margin-bottom: 2rem;
}

table {
    /* border: 1px solid; */
}

table td {
    padding: 0.2rem;
}

.setting-label {
    text-align: right;
    font-weight: bold;
}

table td input {
    width: 5rem;
    background-color:rgba(0, 0, 0, 0.2);
    color: #dcddde;
    border: none;
    padding: 0.3rem;
}

#setting td input {
    text-align: center;
}

#pcwizard {
    display: none;
    z-index: 100;
    height: 100%;
    width: 100vw;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.4);
    color: #dcddde;
    position:fixed
}
#pcwizard.open {
    display: block;
}


#pcwizard td input {
    text-align: center;
}

.panel{
    width: 18rem;
    margin-left: 2rem;
    margin-right: 2rem;
}

.game_button{
    width: 100%;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    cursor: pointer;
    font-weight: bold;

    padding: 0.5rem 1rem;
    display: inline-block;
    border-radius: 2rem;
    border: 0.2rem solid;
    outline: none;
    background-color: #2a2c30;
    transition: color 250ms ease, border-color 250ms ease;

    color: #dcddde;
    border-color: #dcddde;

}
button.game_button:hover{
    color: #dcddde;
    border-color: #dcddde;
}
button.game_button:focus{
    /* background-color: #363941; */
}

.game_button.red, .mini_button.red  {
    color: rgb(235, 79, 101);
    border-color: rgb(235, 79, 101);
}
.game_button.orange, .mini_button.orange {
    color: rgb(243, 137, 39);
    border-color: rgb(243, 137, 39);
}
.game_button.yellow, .mini_button.yellow {
    color: rgb(246, 208, 60);
    border-color: rgb(246, 208, 60);
}
.game_button.green, .mini_button.green {
    color: rgb(81, 184, 77);
    border-color: rgb(81, 184, 77);
}
.game_button.cyan, .mini_button.cyan {
    color: rgb(66, 175, 225);
    border-color: rgb(66, 175, 225);
}
.game_button.blue, .mini_button.blue {
    color: rgb(17, 101, 181);
    border-color: rgb(17, 101, 181);
}
.game_button.purple, .mini_button.purple {
    color: rgb(151, 57, 162);
    border-color: rgb(151, 57, 162);
}

#tetris {
}

#board{
    background-color: #2a2c30;
    border: none;
    padding: 1rem;
    outline: none;
}

#gamemode{
    display: none;
    border: 0.2rem solid rgb(246, 208, 60);
    background-color: #363941;
    color: #dcddde;
    padding: 1rem;
}
#gamemode.open {
    display:block;
}
#gamemode input {
    width: 2rem;
    background-color:rgba(0, 0, 0, 0.2);
    color: #dcddde;
    border: none;
    padding: 0.3rem;
}

#result, #winning_requirement{
    padding: 1rem;
    /* background-color: rgba(66, 175, 225, 0.2); */
    background-color: #2a2c30;
    color: #dcddde;
    border: 0.2rem solid #dcddde;

    text-align: center;
    margin-bottom: 2rem;
}

#rightpanel h2,
#leftpanel h2 {
    color: #dcddde;
    text-align: center;
}

input:focus {
    color: rgb(66, 175, 225);
    outline: 0.2rem solid rgb(66, 175, 225);  
}
#pcwizard_error,
#field_error,
#queue_error {
    font-size: 1rem;
    color:rgb(235, 79, 101);
}

#url_but {
    display: inline;
}

#gamemode #input_queue {
    width: 8rem;
    font-family: monospace;
}

#field {
    color: #dcddde;
    background-color:rgba(0, 0, 0, 0.2);
}
#field:focus {
    outline: 0.2rem solid rgb(66, 175, 225);  
}

#gamemode #output_url {
    width: 8rem;
}

.mini_button{
    padding: 0.2rem 0.5rem;
    display: inline-block;
    border-radius: 2rem;
    border: 0.15rem solid;
    outline: none;
    background-color: #2a2c30;
    transition: color 250ms ease, border-color 250ms ease;

    color: #dcddde;
    border-color: #dcddde;
}
button.mini_button:hover{
    color: #dcddde;
    border-color: #dcddde;
}

select#input13, select#pcwizard_option {
    padding: 0.2rem;
    display: inline-block;
    border-radius: 2rem;
    border: 0.15rem solid;
    outline: none;
    background-color: #2a2c30;
    color: rgb(246, 208, 60);
    border-color: rgb(246, 208, 60);
}

#pcwizard input {
    width: 8rem;
    background-color:rgba(0, 0, 0, 0.2);
    color: #dcddde;
    border: none;
    padding: 0.3rem;
}

.tc {
	position: absolute;
	bottom: 0;
    left: 0;
	text-align: center;
	padding: 10px;
	pointer-events: none;
	z-index: 11;
    display: none;
    font-size: 80px;
}
.tc span {
	width: 130px;
	height: 130px;
	border: 3px solid #fff;
	background-color: #87cefa;
	opacity: 0.4;
	margin: 6px 1px;
	vertical-align: text-bottom;
	pointer-events: auto;
	display: inline-block;
    touch-action: manipulation;
    
}

#startpanel {
    padding:0px 50px 0px 50px; 
    color: #ddd;
    
}
#scrollable{   overflow:auto;
    height:50vh;
}
#leaderboard {
    background-color: #1d2a35;
    border-collapse: collapse;
    width: 100%;
    
  }
  
#leaderboard td, #leaderboard th {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
    color: #ddd;
  }
  

#leaderboard tr:nth-child(odd) {
    background-color: #38444d;
    width: 100%;
    padding: 8px;
    border: 1px solid #dddddd
  }