* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

header {
  background-color: #fff;
  font-size:22px;
  color: #fff;
  display: flex;
  text-align:center:
  color:blue;
  justify-content: space-between;
  padding: 10px;
}

.site-title {
  font-size: 1.5rem;
  margin-right: 0px;
}

nav {
  display: flex;
}

nav ul {
  display: flex;
  list-style: none;
}

nav li {
  margin-right: 20px;
}

nav a {
  color: #55555e;
  text-decoration: none;
}

main {
  padding: 20px;
}

@media screen and (max-width: 768px) {
  .site-title {
    font-size: 1.5rem;
    margin-right: 20px;
  }
  
  nav {
    flex-direction: column;
    margin-top: 10px;
  }
  
  nav li {
    margin-bottom: 10px;
    margin-right: 0;
  }
}













footer {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-top: 2em;
}

nav {
  display: flex;
  justify-content: center;
}

nav ul {
  list-style: none;
  display: flex;
}

nav li {
  margin: 0 1em;
}

nav a {
  text-decoration: none;
  color: #666;
}

nav a:hover {
  color: #000;
}














body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  max-width:100%;
  margin:0 auto;
  font-family: 'Roboto', sans-serif;
  font-size:14px;
}

a{
	color: #337c33;
}

#container{
	max-width: 100%;
	font-family: 'Roboto', sans-serif;
  font-size:14px;
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	border-left: 0px solid;
	border-right: 0px solid;
}

/*logo*/


/*nav bar*/
.nav_bar{
	text-align: center;
	height: 33px;
	margin-top: 11px;
}

.btn{
	padding: 9px;
	font-size: 19px;
	color:white;
	background: #0000FF;
	border: 0;
	cursor: pointer;
	border-bottom: 0px solid #dbdbdb;
	transition: .5s;
	width:100px;border-radius:55px;
}

.btn:hover{
	opacity: .5;
	border-bottom: 1px solid #000;
}

#giveUpBtn{
	position: absolute;
	margin-left: -49px;
}

#levelSelectBtn{
	position: absolute;
	margin-left: 69px;
}

#difficultySelectBtn{
	position: absolute;
    margin-left: -170px;
}

/*game*/
.game_area{
	margin-top:5px;}

.row, .row_block{
	display: flex;
	justify-content: center;
	margin: 5px;
}

.row_block{
	font-size: 45px;
    border: 2px solid #55555e;
    width: 60px;
    height: 55px;
	border-radius: 12px;
	transition: transform 1.6s;
	background:#F8F8FF;
	line-height:50px;
}

/*notification*/
#notification{
	font-family: arial;
	text-align: center;
	letter-spacing: 1px;
	font-size: 19px;
	margin-top: 5px;
	margin-bottom: 5px;
	height: 22px;
}

/* keyboard */
#keyboard{
	text-align:center;
	margin-top: 10px;
}

#topKeys, #midKeys, #botKeys{
	display: flex;
	justify-content:center;
}

.keyboardKey_s, .keyboardKey_m, .keyboardKey_l{
	background-color: #c5c5c5;
	font-size: 28px;
	height: 45px;
	padding: 6px 0;
	margin: 2.5px;
	display: flex;
	justify-content: center;
	font-family: arial;
	cursor: pointer;
}

.keyboardKey_s{
	width: 52px;
}

.keyboardKey_m{
	width: 58px;
}

.keyboardKey_l{
	width: 81px;
}


.blockGreen, .blockGrey, .blockGold{
	color:#fff;
	transform: rotateX(360deg);
}

.blockGreen{
	background-color: #35a535;
}

.blockGrey{
	background-color: #737373;
}

.blockGold{
	background-color: #d7bf4a;
}

/*modal*/
#shadowBack{
	position: absolute;
	left: 0;
	background: #000;
	opacity: 0;
	width: 100%;
	height: 100%;
	z-index: 10;
	transition: .5s;
}

#modal{
	position: absolute;
	top: 100px;
	width: 350px;
	background: #C3DAF9;
	opacity: 0;
	left: calc(50% - 175px);
	z-index: 11;
	transition: .5s;
}

#modalClose{
	position: absolute;
	margin-top: -42px;
	margin-left: 277px;
	font-size: 21px;
	cursor: pointer;
	padding: 5px 10px;
}

.modalBtn, .modalBtnL{
	width: 100%;
	font-size: 28px;
	cursor: pointer;
}

.modalBtn, .modalBtnL{
	padding: 23.5px;
}

.modalBtnL{
	padding: 37.5px;
}

.modalMessage{
	display: block;
	font-size: 22px;
	text-align: center;
	margin-top: 11px;
	line-height: 32px;
	letter-spacing: .5px;
}

.msBlock{
	display: inline-block;
	text-align: center;
    margin-top: 17px;
	width: 49%;
}

.msHead{
	display:block;
	font-size: 20px;
}

.msBody{
	display:block;
	font-size: 60px;
}

.scoreType{
	display: inline-block;
	width:50%;
	text-align: center;
    padding: 10px 0;
}

.scoreBtn, .scoreBtnActive{
	width: 25%;
	padding: 13px 0;
	cursor: pointer;
	transition:.5s;
}

.helpBtn, .helpBtnActive{
	width: 50%;
	padding: 13px 0;
	cursor: pointer;
	transition:.5s;
}

.scoreBtnActive, .helpBtnActive{
	background:#737373;
	color:#fff;
}

#mhBlock{
	padding: 8px;
	font-size: 15px;
}

.mhbHead{
	padding-bottom: 10px;
	border-bottom: 1px solid #bbbbbb;
}

.mhbBody{
	text-align: center;
}

.exampleRow{
	padding: 4px;
}

.exampleTile{
	font-size: 21px;
	padding: 5px;
	border: 3px solid #737373;
	width: 28px;
	margin: 3px;
	display: inline-block;
}

/* social */
.socialNav{
	height: 42px;
	text-align: center;
}

.modalSocialIcon{
	width: 35px;
	margin: 7px;
	cursor: pointer;
}

/* menu */
#menu{
	position: relative;
	top:7px;
}

.menuBtn{
	width:100%;
	padding: calc(6vh - 30px);
	font-size: 35px;
	cursor: pointer;
}

@media only screen and (max-width: 800px) {
	.game_area{
		margin-top: 1px;
		
	}
	.row, .row_block{
		margin: 2px;
	}
	.row_block {
		font-size: 40px;
		width: 45px;
		height: 44px;
	}
	#notification, .nav_bar{
		margin-top: 0;
		margin-bottom: 0;
	}
}

@media only screen and (max-width: 415px) {
	.game_area{
		margin-top: 1px;
		
	}
	.row, .row_block{
		margin: 2px;
	}
	.row_block {
		font-size: 28px;
		width: 30px;
		height: 30px;
	}
	.logo_green, .logo_gold {
		font-size: 21px;
		width: 32px;
		height: 27px;
	}
	.btn{
		font-size:15px;
	}
	#difficultySelectBtn{
		margin-left:-131px;
	}
	#levelSelectBtn{
		margin-left:57px;
	}
	#modal{
		width:300px;
		left:calc(50% - 150px);
	}
	#notification {
		height:15px;
		font-size:17px;
	}
	.nav_bar{
		margin-bottom:6px;
	}
	#modalClose {
		margin-left: 215px;
	}
	.modalBtnL, .modalBtn{
		padding:6vh;
	}
	.msBlock {
		margin-top: 22px;
		margin-bottom: 10px;
	}
	.msHead {
		font-size: 13px;
	}
	.msBody {
		font-size: 36px;
	}
	.mhbHead {
		font-size: 12px;
	}
	.helpBtn, .helpBtnActive {
		padding: 7px 0;
	}
	.exampleTile {
		font-size: 15px;
		padding: 4px;
		width: 21px;
	}
	.socialNav{
		display:none;
	}
}