Вам какой кофе?

Интересная реализация отображения количества различных ингредиентов в видах кофе. По клику на вид кофе, в чашке мы видим в какой пропорции и какие ингредиенты содержаться внутри.

HTML

<div class="options">
  <button id="americano">Americano</button>
  <button id="au_lait">Au lait</button>
  <button id="capuccino">Capuccino</button>
  <button id="corretto">Corretto</button>
  <button id="espresso">Espresso</button>
  <button id="latte">Latte</button>
  <button id="lungo">Lungo</button>
  <button id="macchiato">Macchiato</button>
  <button id="mocha">Mocha</button>
  <button id="ristretto">Ristretto</button>
</div>
<div class="container">
  <h1 class="coffee_name">Choose your coffee</h1>
  <div class="cup">
    <div class="filling reset">
      <div class="coffee">Coffee</div>
      <div class="water">Water</div>
      <div class="liquor">Liquor</div>
      <div class="milk">Milk</div>
      <div class="whipped_cream">Whipped cream</div>
      <div class="milk_foam">Milk foam</div>
      <div class="steamed_milk">Steamed milk</div>
      <div class="chocolate">Chocolate</div>
    </div>
    <div class="plate"></div>
  </div>
</div>

CSS

:root {
  --main-bg-color: #d6b9a4;
  --cup-color: #474747;
  --cup-width: 30vw;
  --cup-height: 24vw;
  --cup-handle-width: 5vw;
  --cup-handle-height: calc(2 * var(--cup-handle-width));
  --cup-border-width: 2vw;
  --cup-inside-width: calc(var(--cup-width) - var(--cup-border-width));
  --cup-inside-height: calc(var(--cup-height) - var(--cup-border-width));
  --border-width: 1vw;
  --main-border: var(--border-width) solid var(--cup-color);
  --plate-width: 25vw;
  --plate-height: 2vw;
  --coffee-bottom: 80%;
  --water-bottom: 0;
  --milk-bottom: 0;
  --liquor-bottom: 0;
  --whipped_cream-bottom: 0;
  --steamed_milk-bottom: 0;
  --milk_foam-bottom: 0;
  --chocolate-bottom: 0;
  --coffee-color: #3c302f;
  --water-color: #b1dce2;
  --milk-color: #f0ebe5;
  --liquor-color: #fc8626;
  --whipped_cream-color: #fceecb;
  --milk_foam-color: #fceecb;
  --steamed_milk-color: #ffd7b3;
  --chocolate-color: #391e09;
}

body {
  height: 100vh;
  width: 100vw;
  background: var(--main-bg-color);
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  margin: auto;
  overflow: hidden;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 70vw;
}

.coffee_name {
  color: #f1faee;
  text-align: center;
  /*   width: 100%; */
  font-size: 4vw;
}

.options {
  display: grid;
  grid-gap: 1vh;
  grid-template-rows: repeat(10, 35px);
  grid-template-columns: 120px;
  justify-content: space-evenly;
  box-sizing: border-box;
}

.options button {
  user-select: none;
  background: rgba(214, 217, 227, 0.6);
  outline: none;
  font-size: 1rem;
  border: 2px solid #a67a60;
  box-shadow: none;
  color: #363636;
  box-sizing: border-box;
  border-radius: 1vh;
}

.options button:hover {
  cursor: pointer;
  border-width: 4px;
  background: rgba(255, 255, 255, 0.6);
}
.options .selected {
  border-width: 4px;
  background: rgba(255, 255, 255, 0.8);
  box-sizing: border-box;
}

.cup {
  width: var(--cup-width);
  height: var(--cup-height);
  border-radius: 0 0 10vw 10vw;
  position: relative;
  background-color: var(--cup-color);
  z-index: 10;
  box-sizing: border-box;
}

.cup::after {
  content: "";
  position: absolute;
  top: 10%;
  left: calc(100% - 1vw);
  width: var(--cup-handle-width);
  height: var(--cup-handle-height);
  border: var(--main-border);
  border-radius: 50% 30%;
}

.plate {
  position: absolute;
  top: calc(100% + 1vw);
  left: calc((var(--cup-width) - var(--plate-width)) / 2);
  width: var(--plate-width);
  background: var(--cup-color);
  height: var(--plate-height);
  border-radius: 1vw;
}

.filling {
  position: absolute;
  left: calc(var(--cup-border-width) / 2);
  bottom: calc(var(--cup-border-width) / 2);
  width: var(--cup-inside-width);
  height: var(--cup-inside-height);
  overflow: hidden;
  border-radius: 0 0 10vw 10vw;
  background-color: var(--main-bg-color);
  bottom: 1vw;
}

.filling div {
  position: absolute;
  width: 100%;
  transition: all 1s linear;
  color: #817f75;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  height: 0;
  overflow: hidden;
  font-size: 3vw;
  height: 100%;
  bottom: -100%;
  box-sizing: border-box;
}

.filling.reset.americano {
  --water-bottom: 0;
  --coffee-bottom: -60%;
}
.filling.reset.au_lait {
  --coffee-bottom: -50%;
  --milk-bottom: 0%;
}
.filling.reset.capuccino {
  --coffee-bottom: -65%;
  --steamed_milk-bottom: -35%;
  --milk_foam-bottom: 0;
}
.filling.reset.espresso {
  --coffee-bottom: -60%;
}
.filling.reset.latte {
  --coffee-bottom: -60%;
  --steamed_milk-bottom: -20%;
  --milk_foam-bottom: 0%;
}
.filling.reset.corretto {
  --coffee-bottom: -45%;
  --liquor-bottom: -25%;
}
.filling.reset.lungo {
  --water-bottom: 0;
  --coffee-bottom: -50%;
}
.filling.reset.macchiato {
  --coffee-bottom: -70%;
  --milk_foam-bottom: 0;
}
.filling.reset.mocha {
  --coffee-bottom: -60%;
  --chocolate-bottom: -40%;
  --steamed_milk-bottom: -20%;
  --whipped_cream-bottom: 0%;
}
.filling.reset.ristretto {
  --coffee-bottom: -80%;
}

div.chocolate {
  background: var(--chocolate-color);
  bottom: var(--chocolate-bottom);
  z-index: 6;
}
div.coffee {
  background: var(--coffee-color);
  bottom: var(--coffee-bottom);
  line-height: 4vw;
  z-index: 7;
}
div.liquor {
  background: var(--liquor-color);
  bottom: var(--liquor-bottom);
  z-index: 4;
}
div.milk {
  background: var(--milk-color);
  bottom: var(--milk-bottom);
  z-index: 2;
}
div.milk_foam {
  background: var(--milk_foam-color);
  bottom: var(--milk_foam-bottom);
  z-index: 5;
}

div.steamed_milk {
  background: var(--steamed_milk-color);
  bottom: var(--steamed_milk-bottom);
  z-index: 6;
}
div.water {
  background: var(--water-color);
  bottom: var(--water-bottom);
}
div.whipped_cream {
  background: var(--whipped_cream-color);
  bottom: var(--whipped_cream-bottom);
  z-index: 4;
}

.filling.reset {
  --coffee-bottom: -100%;
  --water-bottom: -100%;
  --milk-bottom: -100%;
  --liquor-bottom: -100%;
  --whipped_cream-bottom: -100%;
  --steamed_milk-bottom: -100%;
  --milk_foam-bottom: -100%;
  --chocolate-bottom: -100%;
}

JS

const coffee_name = document.querySelector(".coffee_name");
const coffee_filling = document.querySelector(".filling");
const buttons = document.querySelectorAll("button");
let current_element = null;

const changeCoffeeType = (selected) => {
  if (current_element) {
    current_element.classList.remove("selected");
    coffee_filling.classList.remove(current_element.id);
  }
  current_element = selected;
  coffee_filling.classList.add(current_element.id);
  current_element.classList.add("selected");
  coffee_name.innerText = selected.innerText;
};

const setActiveType = (element) => {
  element.toggleClass("selected");
};

[...buttons].forEach((button) => {
  button.addEventListener("click", () => {
    changeCoffeeType(button);
  });
});