app.css

@import url("https://fonts.googleapis.com/css2?family=Quicksand:wght@300;400;500;600&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Rubik:wght@300;400&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Indie+Flower&display=swap");

:root {
  --white: #ffffff;
  --black: #000000;
  --body-bg: linear-gradient(
    72deg,
    rgba(238, 174, 202, 1) 0%,
    rgba(136, 98, 255, 1) 51%,
    rgba(148, 187, 233, 1) 100%
  );
  --div-bg: #f0f5fd;
  --option: #7daefe;
  --option-focus: #6ed158;
  --option-focus-dark: #56bf3f;
  --secondary-color: #fdb95c;
  --text-color: #494c6e;
  --secondary-text-color: #ffffff;
  --font: "Quicksand", cursive;
  --secondary-font: "Rubik", cursive;
}

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  /* overflow: hidden; */
  font-family: var(--font);
  word-break: break-word;
}

body {
  height: 100vh;
  width: 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  background: var(--body-bg);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}
.logo {
  width: 450px;
  color: white;
  line-height: 1.6;
  background: var(--div-bg);
  color: var(--text-color);
  padding: 0.5rem 1.5rem;
  border-radius: 5px;
  margin-bottom: 10px;
}
.logo h1 {
  font-weight: bold;
}

.question,
.start,
.result {
  width: 450px;
  min-height: 300px;
  background-color: var(--div-bg);
  padding: 2rem;
  border-radius: 5px;
}

.question h2,
.start h2,
.result h2 {
  font-size: 2rem;
  border-bottom: 2px solid var(--secondary-color);
  font-weight: 500;
}
.start h2 {
  font-size: 1.2rem;
  line-height: 1.5;
  padding-bottom: 10px;
}
.result h2 {
  text-align: center;
  border: 2px solid var(--secondary-color);
  padding: 10px 0px;
}
.options,
.start-options {
  display: flex;
  flex-wrap: wrap;
  margin: 15px 0;
}
.option-container,
.difficulty-select {
  display: grid;
  place-items: center;
  position: relative;
  background: var(--white);
  width: 160px;
  height: 80px;
  margin: 10px;
  border-radius: 25px;
  color: var(--text-color);
  font-size: 1.5rem;
  font-family: var(--secondary-font);
  cursor: pointer;
  font-weight: bold;
  -webkit-user-select: none;
  user-select: none;
  -moz-user-select: none;
}
.start-options .option-container {
  font-size: 1rem;
}
.difficulty {
  display: flex;
  margin: 15px 0;
  align-items: center;
}
.difficulty * {
  margin: 10px;
  width: 160px;
}

.footer button,
.start-footer button,
.result-footer button {
  width: 100%;
  border-radius: 3px;
  background: var(--option);
  padding: 15px 0;
  font-size: 1rem;
  color: var(--secondary-text-color);
  font-weight: bold;
}
.result-footer button {
  background: var(--body-bg);
}
.footer button:hover,
.start-footer button:hover {
  background-color: var(--secondary-color);
  color: var(--text-color);
  transition: all 0.3s ease;
}
.total {
  width: 100%;
  border: 2px solid lightgrey;
}
.wrong,
.correct {
  flex: 1;
}
.correct {
  background: var(--option-focus-dark);
  color: var(--secondary-text-color);
}
.wrong {
  background: red;
  color: var(--secondary-text-color);
}
.result {
  position: relative;
}
.grade {
  width: 75px;
  height: 75px;
  position: absolute;
  top: -30px;
  left: -35px;
  display: grid;
  place-content: center;
  border-radius: 50%;
  background: var(--secondary-color);
  color: var(--text-color);
  font-weight: bold;
  font-size: 2rem;
  z-index: 9;
}
.grade p {
  font-family: "Indie Flower", cursive;
}
.link {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translate(-50%);
  color: white;
  font-weight: 300;
}

/* media queries */
@media (max-width: 720px) {
  body {
    min-height: 100vh;

    height: auto;
  }
  .question,
  .start,
  .result {
    width: 95%;
    margin: 0px auto;
    border-radius: 5px;
  }
  .option-container,
  .difficulty-select {
    width: 40%;
  }
  .link {
    width: 95%;
    display: block;
    position: unset;
    margin: 1rem;
    padding: 0.5rem;
    text-align: center;
    transform: none;
    background: var(--div-bg);
    color: var(--text-color);
    font-weight: 400;
    border-radius: 5px;
  }
  .link a {
    color: var(--text-color);
  }
  .logo {
    width: 95%;
    padding: 1rem;
    background: var(--div-bg);
    margin: 10px;
    color: var(--text-color);
    border-radius: 5px;
  }
  .logo h1 {
    font-size: 1.4rem;
  }
  .total {
    width: 100%;
  }
  .correct,
  .wrong {
    width: 45%;
    font-size: 1.2rem;
  }
  .grade {
    top: -8px;
    left: -8px;
    height: 60px;
    width: 60px;
  }
}

/* util classes */
.option-focus {
  background: var(--option-focus) !important;
  border-top: 5px solid var(--option-focus-dark);
  color: var(--secondary-text-color) !important;
  animation-duration: 0.8s !important;
}
button,
button:focus,
select:focus,
input,
input:focus {
  outline: none;
  cursor: pointer;
}
button {
  border: 0;
}
input {
  padding: 2px;
}
.btn-active {
  opacity: 1 !important;
  pointer-events: all !important;
}
.notify {
  display: none;
  background: black;
  color: white;
  position: absolute;
  top: 100px;
  right: 50px;
  padding: 20px;
  border-radius: 5px;
  font-weight: bold;
}
.show {
  display: block;
}
.hide {
  display: none;
}
a {
  color: var(--secondary-text-color);
}