html, body {
  height: 100%;
  min-width: 320px;
}

body {
  width: 100%;
  margin-bottom: 60px;
  background-color: #DB9;
}

header,
main,
footer, nav{
  max-width: 1024px;
  margin: auto;
  width: 100%;
}

main {
  margin-top: 56px;
  min-height: 100%;
  margin-bottom: 56px;
}

i.fa {
  margin-right: 10px;
  margin-left: 10px;
}

a:hover {
  text-decoration: none;
}

footer {
  display: inline-block;
  position: fixed !important;
  bottom: 0;
  right: 0;
  left: 0;
  padding: .5rem 1.5rem;
  z-index: 50;
  height: 56px;
}

input {
  background-color: #222;
  background-color: transparent;
}

.bg-red {
  background-color: #300 !important;
}

#main-header {
  padding: 15px 0 15px 0;
  color: #400;
  font-family: 'Permanent Marker', cursive;
}

#gameboard {
  width: 320px;
  border-radius: 20px;
  padding: 10px;
  /*background: #222;*/
  background: #600;
  background: #600 -webkit-radial-gradient(20% 80%, 60% 60%, rgba(255,255,255,.12), rgba(0,0,0,.2));
  box-shadow: 0px 2px .7px 1px #976, inset 0 -7px rgba(0,0,0,.4);
}

#display {
  position: relative;
  width: 100%;
  height: 300px;
  margin-top: 20px;
  border-radius: 10px;
  margin: auto;
  padding: 15px;
  padding-top: 21px;
  color: #DDD;
  background: #111;
  background: linear-gradient(to top left,  #100 5%, #600 100%);
  box-shadow: inset 3px 3px 4px #111;
}

#volume {
  position: absolute;
  top: -2px;
  left: -15px;
}

.btn {
  color: #DDD;
}

.board-cell {
  clear:both;
  width: 50%;
  height: 50%;
  margin-top: -6px;
  display: inline-block;
  padding: 2px;
}

.board-cell:focus {
  outline: none;
}

.cell-btn {
  width: 100%;
  height: 100%;
  opacity: 0.7;
  box-shadow: inset 1px 2px 6px rgba(0,0,0,0.5);
}

.cell-btn:hover,
.cell-btn.lit {
  opacity: 1;
  box-shadow: inset 1px 2px 6px rgba(0,0,0,0.4);
}

.cell-btn:active {
  opacity: 0.9;
  box-shadow: inset 5px 5px 12px rgba(0,0,0,0.4);
}

#red-btn {
  background-color: red;
  background-image: linear-gradient(to top left, red, darkorange);
  border-top-left-radius: 40%;
}
#green-btn {
  background-color: lime;
  background-image: linear-gradient(to top right, green, lime);
  border-top-right-radius: 40%;
}
#yellow-btn {
  background-color: yellow;
  background-image: linear-gradient(to bottom left, orange, yellow);
  border-bottom-left-radius: 40%;
}
#blue-btn {
  background-color: #05B;
  background-image: linear-gradient(to bottom right, #05B, #6BF);
  border-bottom-right-radius: 40%;
}


#buttons {
  margin-top: 20px;
  margin-bottom: 20px;
  width: 100%;
  display:flex;
  justify-content:center;
}

#buttons .btn {
  padding: 0.4rem 0.4rem;
  border: 0;
  text-transform: uppercase;
  cursor:pointer;
}

#buttons .btn:hover {
  background: none;/*
  box-shadow: 1px 1px 4px black;*/
}

#buttons .btn:focus,
#buttons .btn:active {
  border: 0;
/*  box-shadow: inset 1px 1px 4px black;
  transform: translateY(2px);*/
}

#buttons label i {
  font-size: 1.5em;
}
#buttons label span {
  font-size: 1.2em;
}

#buttons .btn-row {
  padding-top: 10px;
  padding-left: 5px;
  padding-right: 5px;
  width: 100%;
}

#counter {
  border-color: black;
  background-color: black;
  background-color: rgba(0,0,0,0.4);
  color: #A00;
  font-family: 'Roboto Mono', monospace;
  font-weight: 400;
  font-size: 1.3em;
}

#statusdisplay {
  font-family: 'Permanent Marker', cursive;
  color: #400;
  background-image: none;
}



/* Utility Styles */
.unselectable {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    cursor: default;
}

.display-5 {
  font-size: 2.5rem;
  font-weight: 300;
  line-height: 1.1;
}

.ip {
  font-size: 1.5rem;
  vertical-align: super;
}

.white-shadow {
  color: #DDD;
}
.white-shadow:hover,
.white-shadow:focus {
  color: #FFF;
  text-shadow: 0 0 8px #FFF;
}

.disabled {
  pointer-events: none;
}

.btl {
  border-top-left-radius: 10%;
}
.btr {
  border-top-right-radius: 10%;
}
.bbl {
  border-bottom-left-radius: 10%;
}
.bbr {
  border-bottom-right-radius: 10%;
}


/* Display size adjustments */
@media only screen and (max-width: 768px){
  footer {
    text-align: center;
  }
}