band.less

/* LESS declarations go here */
@font-face {
  font-family: 'Bilbo Swash Caps';
  font-style: normal;
  font-weight: 400;
  src: url('/BilboSwashCaps-Regular.otf');
  src: local('Bilbo Swash Caps'), url('/BilboSwashCaps-Regular.otf') format('otf');
}
body {
  margin: 0;
  padding: 0;
  background-color: #000;
  overflow: hidden;
}

ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

#background {
  position: absolute;
  z-index: -2;
  top: 0;
  width: 100vw;
  height: 100vh;
  margin: 0;
  transition: background-color 1s;
}

#translucent {
  position: absolute;
  z-index: -1;
  top: 0;
  width: 100vw;
  height: 100vh;
  margin: 0;
  opacity: 0.3;
  background-image: linear-gradient(to top, black, white);
}

#playground {
  height: 100vh;
  color: white;
  text-align: center;
  #slogan {
    margin: 0;
    text-shadow: 0 0 1px #000;
  }
  .instrument-icon {
    width: 4vw;
    height: 4vw;
  }
  #footer {
    position: absolute;
    width: 100vw;
    text-align: center;
    bottom: 0;
    font-size: 12px;
    opacity: 0.6;
    z-index: -1;
    a {
      color: #fff;
    }
  }
}

h1#logo {
  font-family: 'Bilbo Swash Caps', cursive;
  font-size: 6vw;
  text-shadow: 0 0 2px #000;
  margin-bottom: 0;
}

#piano {
  display: inline-block;
  text-align: left;
  margin-top: 40px;
  #white-keys {
    margin: 0;
  }
  .white-key {
    position: relative;
    display: inline-block;
    border: 4px solid white;
    width: 4vw;
    height: 14vw;
    margin: 0 0 0 -8px;
    cursor: pointer;
    &.clicked {
      margin-top: -0.4vw;
      top: 0.4vw;
      height: 14.4vw;
    }
    &:last-child {
      border-radius: 0 6px 6px 0;
    }
    &:first-child {
      border-radius: 6px 0 0 6px;
    }
  }
  #black-keys {
    position: relative;
    top: -14vw;
    margin: -10px 0 0 -6px;
    left: 1vw;
  }
  .black-key {
    position: relative;
    display: inline-block;
    background-color: white;
    margin: 0 -8px 0 2vw;
    border: 4px solid white;
    border-radius: 0 0 4px 4px;
    width: 2vw;
    height: 8vw;
    cursor: pointer;
    &.clicked {
      margin-top: -0.4vw;
      top: 0.4vw;
      height: 8.4vw;
    }
    &.hidden {
      visibility: hidden;
    }
  }
}

.drum (@radius) {
  position: relative;
  display: inline-block;
  width: @radius * 2;
  height: @radius * 2;
  border-radius: @radius * 2;
  border: 4px solid white;
  &.clicked {
    transform: scaleY(0.96);
  }
  .lugs {
    margin-top: @radius;
    margin-left: @radius;
    .lug {
      width: @radius;
    }
  }
  .sticker {
    width: @radius / 2;
    height: @radius / 2;
    background-color: white;
    border-radius: @radius / 2;
    margin-left: @radius * 3 / 4 ;
    margin-top: -@radius / 4 ;
  }
}

#drums > div {
  margin: 1vw;
  display: inline-block;
  vertical-align: middle;
  cursor: pointer;
}

#drums {
  .lugs {
    .lug {
      position: absolute;
      display: block;
      border-right: 4px solid white;
      border-left: 2px solid transparent;
      border-radius: 1vw;
      height: 1vw;
      margin-top: -0.5vw;
      transform-origin: 0 50% 0;
      &.first {
        transform: rotate(45deg * 1 - 22.5deg)
      }
      &.second {
        transform: rotate(45deg * 2 - 22.5deg)
      }
      &.third {
        transform: rotate(45deg * 3 - 22.5deg)
      }
      &.fourth {
        transform: rotate(45deg * 4 - 22.5deg)
      }
      &.fifth {
        transform: rotate(45deg * 5 - 22.5deg)
      }
      &.sixth {
        transform: rotate(45deg * 6 - 22.5deg)
      }
      &.seventh {
        transform: rotate(45deg * 7 - 22.5deg)
      }
      &.eighth {
        transform: rotate(45deg * 8 - 22.5deg)
      }
    }
  }

  #bass-drum {
    .drum(5vw)
  }
  #snare-drum {
    .drum(3vw)
  }
  .tom {
    .drum(2vw)
  }
  #clap {
    display: inline-block;
    vertical-align: middle;
    cursor: pointer;
    #left-clap {
      position: relative;
      border: 4px solid white;
      border-radius: 8px 0 0 8px;
      display: inline-block;
      width: 1vw;
      height: 4vw;
    }
    #right-clap {
      position: relative;
      border: 4px solid white;
      border: 4px solid white;
      border-radius: 0 8px 8px 0;
      display: inline-block;
      width: 1vw;
      height: 4vw;
    }
    &.clicked {
      #left-clap {
        left: 0.2vw;
      }
      #right-clap {
        left: -0.2vw;
      }
    }
  }
  #cymbal {
    height: 7vw;
    width: 7vw;
    border: 4px solid white;
    border-radius: 7vw;
    text-align: center;
    &.clicked {
      transform: scaleY(0.96);
    }
    .cap {
      position: relative;
      top: -2px;
      margin-top: 2vw;
      display: inline-block;
      height: 3vw;
      width: 3vw;
      border: 2px solid white;
      border-radius: 3vw;
      .top {
        height: 1vw;
        width: 1vw;
        margin-top: 1vw;
        margin-left: 1vw;
        background-color: white;
        border-radius: 1vw;
      }
    }
  }
  #hi-hat {
    height: 7vw;
    width: 7vw;
    border: 4px solid white;
    border-radius: 7vw;
    text-align: center;
    box-sizing: border-box;
    &.clicked {
      .hat-bottom {
        margin-top: -0.3vw;
      }
    }
    .top {
      position: relative;
      top: -4px;
      left: -4px;
      height: 0.8vw;
      width: 0.8vw;
      margin-top: 3.1vw;
      margin-left: 3.1vw;
      background-color: white;
      border-radius: 0.5vw;
    }
    .hat-bottom {
      position: absolute;
      margin-left: -4px;
      height: 7vw;
      width: 7vw;
      box-sizing: padding-box;
      border-bottom: 4px solid white;
      border-radius: 7vw;
    }
  }
}

@keyframes flash {
    0%   {height: 0vh;}
    5%  {height: 2vh; margin-top:-1vh}
    10%  {height: 1vh; margin-top:-0.5vh}
    100% {height: 0vh;}
}

@-webkit-keyframes flash {
    0%   {height: 0vh;}
    5%  {height: 4vh; margin-top:-2vh}
    10%  {height: 1vh; margin-top:-0.5vh}
    100% {height: 0vh;}
}
@-moz-keyframes flash {
    0%   {height: 0vh;}
    5%  {height: 4vh; margin-top:-2vh; opacity: 1}
    10%  {height: 1vh; margin-top:-0.5vh}
    100% {height: 0vh; opacity: 0}
}

.flash {
  -webkit-appearance: none;
  -webkit-animation-name: flash;
  -webkit-animation-iteration-count: 1;
  -webkit-animation-duration: 1s;
  -moz-appearance: none;
  -moz-animation-name: flash;
  -moz-animation-iteration-count: 1;
  -moz-animation-duration: 1s;
  appearance: none;
  animation-name: flash;
  animation-iteration-count: 1;
  animation-duration: 1s;
}

#notes {
  .note {
    position: absolute;
    z-index: -1;
    opacity: 0.8;
    display: block;
    width: 100vw;
    height: 2vh;
    .flash
  }
}