style.css

:root {
  --dark: #132c33;
  --light: #d8e3e7;
  --lightblue: #51c4d3;
  --darkgreen: #126e82;
  --coffee: #644117;
  --lightcoffee: #f0e9d8;
}

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

html {
  font-size: 62.5%;
  font-family: "Roboto Mono", monospace;
  background-color: lightgrey;
}

header {
  margin: 1rem;
  align-content: center;
}

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

.machine {
  display: flex;
  flex-direction: column;
  background-color: var(--dark);
  width: 30rem;
  height: 50rem;
  padding: 2.5rem;
  border: 3px solid;
  border-radius: 10px;
}

.machine_title {
  text-align: center;
  font-size: 2rem;
  color: white;
  margin: 1rem;
}

.btn {
  margin: 1rem;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 10px;
  outline: none;
  text-align: center;
  font-weight: bold;
  font-size: 1.4rem;
  color: white;
  background-color: var(--lightblue);
  box-shadow: 0 2px #999;
}

.btn:focus {
  border: 1px solid;
}

.btn:active {
  transform: translateY(2px);
}

.cancel_btn {
  background-color: red;
}

.cancel_btn--disabled {
  background-color: grey;
}

.continue_btn {
  background-color: green;
  font-size: 1.2rem;
  box-shadow: 0 1px #999;
  margin: 1rem ;
}

.sugar_btn {
  margin: 0 1rem;
}

.levels {
  display: flex;
  justify-content: center;
  align-items: center;
}

.sugar_pt {
  width: 1rem;
  height: 1rem;
  margin: 0.5rem;
  background-color: white;
  border-radius: 50%;
}

.sugar_pt--off {
  background-color: var(--darkgreen);
  border: 1px solid white;
}

.sugar_lvl--on {
  font-size: 2rem;
  color: white;
}

.sugar_lvl--off {
  font-size: 2rem;
}

.panel {
  display: block;
  border: 2px solid var(--dark);
  background-color: var(--darkgreen);
  text-align: center;
  padding: 1rem;
  height: 120px;
}

.panel--order {
  display: block;
  border: 2px solid var(--dark);
  text-align: center;
  padding: 1rem;
  height: 95px;
}

.order {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: var(--dark);
  border: none;
  color: white;
}

.order_text p {
  font-size: 1.4rem;
  text-align: left;
}

.panel_text {
  font-size: 1.6rem;
  color: white;
}

.magic_zone {
  height: 15rem;
  width: 18rem;
  background-color: var(--light);
  text-align: center;
  color: white;
  margin-top: auto;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  align-self: center;
}

.source {
  background-color: black;
  height: 1.5rem;
  width: 4rem;
  border-radius: 0px 0px 10px 10px;
}

.source_tip {
  background-color: black;
  height: 1rem;
  width: 1.5rem;
}

.coffee {
  background-color: var(--coffee);
  height: 4.5rem;
  width: 1rem;
  animation: startCoffee 2s ease-out forwards;
}

.cup {
  box-shadow:  rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 2px 6px 2px;
  height: 8rem;
  width: 6rem;
  background: var(--light);
  margin-top: auto;
  animation: moveToRight 2s ease-out forwards;
  border-radius: 5px 5px 20px 20px;
}

.cup::after {
  content: "";
  border-right: 10px solid rgba(60, 64, 67, 0.3);
  border-radius: 50%;
  position: absolute;
  width: 25px;
  height: 35px;
  transform: translateX(11px) translateY(10px);
}


.cup_fill--Small {
  animation: fillSmall 4s ease-out forwards;
}

.cup_fill--Large {
  animation: fillLarge 4s ease-out forwards;
}

@keyframes moveToRight {
  0% {
    transform: translateX(-100px);
  }
  100% {
    transform: translateX(0px);
  }
}

@keyframes startCoffee {
  0% {
    background: linear-gradient( to bottom, var(--coffee) 1%, var(--light) 99%);
  }
  80% {
    background: linear-gradient( to bottom, var(--coffee) 99%, var(--light) 1%);
  }
  100% {
    background: linear-gradient( to bottom, var(--coffee) 1%, var(--light) 99%);
  }  
}

@keyframes fillSmall {
  0% {
    background: var(--light);
  }
  25% {
    background: linear-gradient( to top, var(--coffee) 12%, var(--light) 12% 88%);
  }
  50% {
    background: linear-gradient( to top, var(--coffee) 25%, var(--light) 25% 75%);
  }
  75% {
    background: linear-gradient( to top, var(--coffee) 37%, var(--light) 37% 63%);
  }
  100% {
    background: linear-gradient( to top, var(--coffee) 50%, var(--light) 50%);
  }
}

@keyframes fillLarge {
  0% {background: var(--light);
  }
  25% {
    background: linear-gradient( to top, var(--coffee) 18%, var(--light) 18% 82%);
  }
  50% {
    background: linear-gradient( to top, var(--coffee) 37%, var(--light) 37% 63%);
  }
  75% {
    background: linear-gradient( to top, var(--coffee) 55%, var(--light) 55% 45%);
  }
  100% {
    background: linear-gradient( to top, var(--coffee) 75%, var(--light) 25%);
  }
}

.hidden {
  display: none;
}