body {
  margin: 0;
  background-color: whitesmoke;
}

.header__logo {
  width: 100px;
}

.header__container {
  background-color: white;
  border-bottom: 1px solid #7cbef7;
}

.header__logo-container {
  padding: 5px;
  display: flex;
}

.header__logo-container p {
  font-size: 10.5px;
  margin: 6px 0px 0px 4px;
  line-height: 15px;
}

.footer-copyrightr {
  background-color: whitesmoke;
  font-size: 12px;
  padding: 15px 10px;
  display: flex;
  justify-content: center;
  border-top: 1px solid #7cbef7;
}

/*共通モジュール*/
#app {
  background-color: aliceblue;
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}

.screen-module {
  background-color: aliceblue;
  padding: 15px 10px;
}

.header-module {
  background-color: #32343b;
  display: flex;
  box-shadow: 0 5px 10px rgb(0 0 0 / 30%);
  border-radius: 20px 20px 0px 0px;
}

.header-module h2 {
  font-size: 20px;
  color: white;
  font-family: 游明朝;
  margin: 10px 15px;
}

.body-module {
  height: 365px;
  background-color: white;
  box-shadow: 0 5px 10px rgb(0 0 0 / 30%);
  border-radius: 0px 0px 20px 20px;
  padding: 0px;
}

.body-module p {
  display: inline-block;
  margin: 10px 10px 0px 10px;
}

.body-module span {
  display: inline-block;
  margin: 10px 10px 0px 10px;
}

.body-module input {
  margin: 5px 10px 10px 10px;
  font-size: 17px;
  padding: 3px;
}

.button-module {
  background-color: white;
  display: flex;
  justify-content: center;
}

.button-module button {
  margin: 15px 10px;
  border-radius: 20px;
  background: #7cbef7;
  color: white;
  border: none;
  width: 200px;
  height: 40px;
  font-size: 17px;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-box-shadow: none;
  box-shadow: none;
  outline: none;
}

.button-module button:active {
  border: 2px solid #5b8ab3;
}

.alert-box {
  color: red;
  position: relative;
  padding: 0px 10px 0px;
}

/*解説部分*/

.youtube-explanation {
  background-color: white;
  display: flex;
  align-items: center;
  padding: 15px 10px;
  align-content: center;
  flex-direction: column;
  justify-content: flex-end;
}

#explanation-field {
  background-color: white;
  box-shadow: 0 5px 10px rgb(0 0 0 / 30%);
  border-radius: 0px 0px 20px 20px;
  height: 200px;
  padding: 10px;
}

#explanation-field p {
  margin: 0;
  font-size: 16px;
  line-height: 22px;
}

#explanation-field ul {
  padding: 0px 20px;
  margin: 11px 0px;
  font-size: 16px;
  line-height: 18px;
}

#explanation-button {
  border-radius: 5px 5px 0px 0px;
  background: #7cbef7;
  color: white;
  border: none;
  width: 100%;
  height: 40px;
  font-size: 17px;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-box-shadow: none;
  box-shadow: none;
  outline: none;
}

.explanation-pic {
  width: 100%;
}

.explanation-pic:hover {
  box-shadow: 0 3px 5px dimgray;
}