@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400&family=Ubuntu:wght@300&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Baloo+Chettan+2:wght@700&family=Fira+Code:wght@700&family=Roboto+Mono:wght@700&display=swap");
* {
  padding: 0;
  margin: 0;
  font-family: "baloo chettan 2", cursive;
  box-sizing: border-box;
  font-size: 17px;
}
::-webkit-scrollbar {
  width: 0;
  height: 0;
}
h2 {
  font-size: 40px;
  color: #7CD2F6;
}
.audio-icon {
  position: fixed;
  bottom: 20px;
  width: 55px;
  height: 55px;
  right: 20px;
  z-index: 9999;
  transition: all 0.5s ease-in-out;
  border-radius: 10px;
  align-content: center;
  box-shadow: 0 0 10px 5px #c1c1c120;
  background: rgba(0,0,0,0.5);
  filter: drop-shadow(0px 0px 10px #272733);

}
#button-play-music {
  background-color: transparent;
  border: 0px;
  width: 100%;
  height: 100%;
  align-items: center;
}
box-icon {
  transition: linear 0.25s;
}

body {
  position: relative;
  height: 99vh;
  background-image: url(./6279fa60fa25fc1918bbb4830cd8ccce.gif);
  display: flex;
  background-repeat:no-repeat;
  justify-content: center;
  background-size: cover;
  align-items: center;
  /* background: linear-gradient(45deg, crimson, #0390c8); */
}
.starter {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  max-width: 1200px;
  width: 100%;
  height: 100%;
  max-height: 700px;
  border-radius: 30px;
  transition: opacity 0.75s ease 0.5s,transform 0.75s ease 0.5s;
  box-shadow: 0 0 10px 5px #c1c1c120;
  padding: 0 10px;
  background: rgba(0,0,0,0.5);
  filter: drop-shadow(0px 0px 10px #272733);
}
.starter button {
  padding: 10px 20px;
  max-width: 300px;
  width: 100%;
  font-size: 1.7rem;
  color: #FEFCFF;
  border: none;
  border-radius: 5px;
  outline: none;
  background-color: #C97CED;
  cursor: pointer;
  box-shadow: 0 0 10px 5px #00000020;
}
.container {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 450px;
  height: auto;
  max-width: 1000px;
  width: 100%;
  height: 100%;
  max-height: 600px;
  border-radius: 30px;
  transition: opacity 0.75s ease 0.5s,transform 0.75s ease 0.5s;
  box-shadow: 0 0 10px 5px #c1c1c120;
  padding: 0 10px;
  background: rgba(0,0,0,0.5);
  filter: drop-shadow(0px 0px 10px #272733);
  color: #FEFCFF;
  border-radius: 30px;
  overflow: hidden;
  transition: 0.3s ease;
}
.container header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  height: 65px;
  padding: 0 10px;
  box-shadow: 0 0 10px 2px #00000030;
  pointer-events: none;
}
.container header p {
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: 4px;
}
.container header .timer {
  font-size: 1.2rem;
  font-weight: 600;
  background: #dc143ca1;
  padding: 5px 10px;
  color:  #BBCFDA;
  border-radius: 3px;
}
.container .question-box {
  display: flex;
  align-self: flex-start;
  padding: 15px 0;
  padding-bottom: 0;
  transition: transform 0.5s ease;
}
.question-box .section {
  width: 450px;
  padding: 0 1rem;
}
.question-box .section .title {
  font-weight: 600;
  letter-spacing: 3px;
  margin-bottom: 1rem;
}
.question-box .section div {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  background: #5dbffc2a;
  border: 2px solid #005eff19;
  margin: 7px 0;
  padding: 10px;
  border-radius: 5px;
  cursor: pointer;
  transition: 0.3s ease;
}
.question-box .section div span {
  display: none;
  opacity: 0;
  pointer-events: none;
}
.question-box .section div i {
  position: absolute;
  right: 15px;
  height: 26px;
  width: 26px;
  border: 2px solid transparent;
  border-radius: 50%;
  text-align: center;
  font-size: 0.8rem;
  line-height: 1.4rem;
  pointer-events: none;
}
.question-box .section div i.fa-check {
  color: #23903c;
  border-color: #23903c;
  background: #d4edda;
}
.question-box .section div i.fa-times {
  color: #a42834;
  background: #f8d7da;
  border-color: #a42834;
}
.question-box .section div:hover {
  background: #cce5ff;
  color: #004085;
  border: 2px solid #b8daff;
}
.question-box .section div.selected {
  background: #009dff50;
  border: 2px solid #009dff50;
}
.question-box .section div.correct {
  background: #00ff0050;
  border: 2px solid #00ff0050;
}
.question-box .section div.wrong {
  background-color: #ff000030;
  border: 2px solid #ff000030;
}
.container footer {
  margin: 5px;
  margin-bottom: 10px;
}
.container footer button {
  padding: 7px 15px;
  position: absolute;
  background-color: #0091ff;
  color: #000;
  border: none;
  outline: none;
  right: 40px;
  border-radius: 3px;
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 10px;
  cursor: pointer;
}
.result-box {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(0,0,0,0.5);
  filter: drop-shadow(0px 0px 10px #272733);
  align-items: center;
  width: 500px;
  border-radius: 30px;
  color: #7CD2F6;
  padding: 1rem 0;
  transition: 0.3s ease;
}
.result-box .num-div {
  display: flex;
  flex-wrap: wrap;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 1rem;
}
.num-div p {
  color:#C23564;
  font-size: 20px;
  margin: 0 10px;
  font-weight: 1000;
}

.result-box button {
  border: none;
  outline: none;
  border-radius: 5px;
  font-size: 1rem;
  font-weight: 1000;
  margin: 1rem 0.3rem;
  padding: 8px;
  cursor: pointer;
}
button {
  transition: 0.2s ease-out;
  letter-spacing: 1px;
}
button:hover {
  transform: scale(1.03);
  filter: brightness(1.2);
}
/* hide class */
.hide {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.9);
  transition: 0s;
  z-index: -999;
}

@media screen and (max-width: 730px) {
  body {
    padding: 0 10px;
  }
  .starter {
    min-width: auto;
    width: 100vw;
  }
  .container {
    width: 90%;
    height: 90%;
  }
  .question-box .section {
    width: 90%;
    height: 90%;
  }
  .result-box {
    width: 100vw;
  }
}

.mota ,  .dong{
  position: absolute;
  font-size: 30px;
  bottom: 20px;
}
#randomText {
  position: absolute;
  font-size: 30px;
  bottom: 20px;
  left: 75px;
}