@import url("https://fonts.googleapis.com/css2?family=Jua&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
#point {
  height: 30px;
  margin-bottom: 20px;
}
body {
  margin-top: 10px;
  width: 100%;
  height: 90vh;
  background-color: #f6f9fc;
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 50px 0;
}
#canvas {
  position: relative;
  width: 1000px;
  height: 400px;
}
.rule_modal {
  display: none;
  position: absolute;
  z-index: 99;
  width: 1000px;
  height: 400px;
  background-image: url("../img/rule1.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.rule_modal.rule2 {
  background-image: url("../img/rule2.png");
}
.rule_modal.on {
  display: block;
}
.rule_modal > * {
  position: absolute;
  z-index: 999;
  cursor: pointer;
}
.rule_modal .x_btn {
  width: 30px;
  height: 30px;
  top: 35px;
  right: 230px;
  background-image: url("../img/x_btn.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
.rule_modal .next_prev_btn {
  top: 300px;
  right: 230px;
  background-color: #4caf50;
  border: none;
  color: white;
  font-weight: bold;
  padding: 10px 20px;
  font-size: 16px;
  box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  border-radius: 5px;
}
.rule_modal .next_prev_btn::after {
  content: "다음";
}
.rule_modal .next_prev_btn.next::after {
  content: "이전";
}

.difficult_modal {
  position: absolute;
  z-index: 99;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

canvas {
  background: #eee;
  position: absolute;
}
.btn {
  position: absolute;
  left: 50%;
  top: 320px;
  transform: translate(-50%, -50%);
}

.btn button {
  font-family: "Jua", sans-serif;
  border: none;
  font-size: 35px;
  padding: 10px 26px;
  cursor: pointer;
  border-radius: 15px;
}
.btn .rule {
  background-color: #e5fde2;
  color: #d8d8d8;
}
.btn .game_difficulty {
  margin-left: 60px;
  background-color: #e5fde2;
  color: #d8d8d8;
}
.btn .rule:hover,
.btn .game_difficulty:hover {
  background-color: #77b934;
  color: black;
}
.btn .game_difficulty.text::after {
  content: "게임시작";
}
.dropdown {
  display: inline-block;
}

.dropdown_content {
  display: none;
  position: absolute;
  bottom: 64px;
  right: 0;
  background-color: #e5fde2;
  min-width: 165px;
  overflow: auto;
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
  z-index: 1;
}

.dropdown.on .dropdown_content {
  display: block;
}
.dropdown.on .game_difficulty {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.dropdown.on .game_difficulty.text::after {
  content: "난이도선택";
  font-size: 28.3px;
}

input[type="radio"] {
  display: none;
}

input[type="radio"] + label {
  text-align: center;
  font-size: 30px;
  width: 100%;
  display: block;
}

input[type="radio"]:checked + label {
  background: #77b934;
}