body {
  margin: 0;
  font-family: "Futura", "Yu Gothic", sans-serif;
}

header {
  box-sizing:border-box;
  position: fixed;
  top: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  z-index: 2;
}

#logo {
  margin-left: 5%;
  font-weight: bold;
  width: 80%;
  height: auto;
}

nav {
  width: 50%;
}

header a {
  width: 40%;
}

nav ul {
  list-style-type: none;
  padding: 0;
  margin-right: 10px;
  display: flex;
}

nav ul li {
  font-size: calc(100vw/60);
  margin-right: 5%;
  margin: 0 0 0 auto;
}

nav ul li a {
  text-decoration: none;
  color: #333;
}

/** 共通 **/
h2 {
  margin-bottom: 0;
  font-size: calc(100vw/60);
  font-weight: lighter;
  font-family: 'Courier New',sans-serif;
  border-bottom: 3px solid transparent;
  transition: border-bottom-color 1s ease;
}

h3 {
  font-size: calc(100vw/40);
  font-weight: bold;
  margin-bottom: 5%;
}

/* メッセージセクション */
.message-sec {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  margin-top: 100px;
  margin-bottom: 5%;
  text-align: center;
  padding: 20px;
  font-family: sans-serif;
  font-weight: bold;
}

.highlight-word {
  font-size: calc(100vw/40);
  font-weight: bold;
}

.normal-word {
  font-size: calc(100vw/80);
}

@keyframes slideUp {
  from {
      transform: translateY(100%);
      opacity: 0;
  }
  to {
      transform: translateY(0);
      opacity: 1;
  }
}

.message-sec p {
  animation: slideUp 0.5s ease-out forwards;
  opacity: 0;
  transform: translateY(100%);
}

/* それぞれの段落に異なる遅延を適用 */
.message-sec p:nth-child(1) { animation-delay: 0.3s; }
.message-sec p:nth-child(2) { animation-delay: 0.6s; }
.message-sec p:nth-child(3) { animation-delay: 0.9s; }
.message-sec p:nth-child(4) { animation-delay: 1.2s; }
.message-sec p:nth-child(5) { animation-delay: 1.5s; }
.message-sec p:nth-child(6) { animation-delay: 1.8s; }


/* トレーニング・ストレッチの紹介セクション */
.program-sec {
  box-sizing:border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px;
  width: 100%;
}

/* pc画面 */
.for-pc {
  display: block;
}

/* スマホ画面 */
.for-sp {
  display: none;
}

.grid-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  column-gap: 10px;
  row-gap: 10px;
  width: 100%;
  margin: auto;
  background-color: #FFFFFF;
  padding-bottom: 5%;
}

.grid-block-1 {
  aspect-ratio: 1 / 1;
  background-color: #FFDBC9;
  position: relative;
  margin: 0 0 0 30%;
}

.grid-block-2 {
  aspect-ratio: 1 / 1;
  background-color: #FFDBC9;
  position: relative;
  margin: 0 30% 0 0;
}

.training-image {
  background-image: url('../images/training-img.jpg');
  background-size: cover;
  background-position: center;
  filter: grayscale(100%);
}

.stretch-image {
  background-image: url('../images/stretch-img.jpg');
  background-size: cover;
  background-position: center;
  filter: grayscale(100%);
}

.centered-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: calc(100vw/20);
  border-bottom: 1px solid #FFFFFF;
}

.train-summary {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  color: #000000;
  font-size: calc(100vw/80);
  text-align: center;
  font-weight: bold;
  border-bottom: 1px solid #000000;
  padding-bottom: 5%;
}

.train-description {
  position: absolute;
  top: 65%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  color: #000000;
  font-size: calc(100vw/110);
  text-align: center;
  padding-top: 5%;
}

.stretch-summary {
  position: absolute;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  color: #000000;
  font-size: calc(100vw/80);
  text-align: center;
  font-weight: bold;
  border-bottom: 1px solid #000000;
  padding-bottom: 5%;
}

.stretch-description {
  position: absolute;
  top: 65%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  color: #000000;
  font-size: calc(100vw/110);
  text-align: center;
  padding-top: 5%;
}


/* 料金プランセクション */
.plan-sec {
  box-sizing:border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px;
  padding-top: 5%;
  padding-bottom: 10%;
  background-color: #EEEEEE;
  width: 100%;
}

.content-blocks {
  display: flex;
  justify-content: center;
  gap: 5%;
  width: 80%;
  font-size: calc(100vw/60);
}

.light-course,.advance-course {
  background-color: #FFFFFF;
  padding: 5%;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
  width: 100%;
  text-align: center;
  font-weight: bold;
}

.light-course {
  color: #555555;
}

.advance-course {
  color: #ff7761;
}

.charge {
  font-size: calc(100vw/30);
  color: #000000;
}

.light-course p {
  color: #000000;
  font-size: calc(100vw/80);
  font-weight: lighter;
}

.advance-course p {
  color: #000000;
  font-size: calc(100vw/80);
  font-weight: lighter;
}

.price-list {
  width: 40%;
  margin-top: 5%;
}

.price-list img {
  width: 100%;
}

/*初回の流れセクション*/
.session-sec {
  box-sizing:border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px;
  margin: 5% 0;
  width: 100%;
}

.content {
  display: flex;
  align-items: center;
  text-align: left;
  gap: 5%;
  width: 50%;
  margin-bottom: 10px;
}

.rectangle {
  background-color: #ff7761;
  width: calc(100vw/90);
  height: calc(100vw/50);
}

.content span {
  font-size: calc(100vw/50);
  font-weight: bold;
}

.session-sec p {
  font-size: calc(100vw/70);
}


/*予約ボタンセクション*/
.reservation-sec {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 5% 0;
  background-color: #FFDBC9;
  width: 100%;
}

.button {
  height: 20%;
  display: inline-block;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: black;
  color: white;
  padding: 1% 2%;
  text-decoration: none;
  transition: background-color 0.3s, color 0.3s;
  border: 5px solid #000000;
  font-size: calc(100vw/50);
}

.button:hover {
  background-color: white;
  color: black;
}


/** トレーナー紹介セクション **/
.profile-sec {
  box-sizing:border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px 5%;
  margin: 5% 0;
  width: 100%;
}

.profile-container {
  display: flex;
  align-items: stretch;
  width: 100%;
}

.profile-image {
  flex-basis: 50%;
  display: flex;
  align-items: stretch;
}

.profile-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.profile-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  flex-basis: 50%;
  padding: 0 20px;
}

.profile-content h4 {
  font-size: calc(100vw/60);
}

.profile-content h5 {
  font-size: calc(100vw/70);
  font-weight: lighter;
}

.profile-content h6 {
  font-size: calc(100vw/70);
  margin: 0 auto;
  background-color: #000000;
  color: #FFFFFF;
  font-weight: lighter;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.profile-content h4 {
  margin: 10px 0;
}

.profile-content p {
  font-size: calc(100vw/70);
}


/*Q&Aセクション*/
.qa-sec {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: #EEEEEE;
  padding: 5% 0;
  width: 100%;
}

/* inputのチェックボックスを非表示 */
.accordion-hidden {
  display: none;
}

/* 見出しボタン部分 */
.accordion-open {
  display: flex;
  background-color: white;
  cursor: pointer;
  margin: 5px 0;
  position: relative;
  width: 60%;
  gap: 5%;
  font-size: calc(100vw/80);
}

.question-num {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 10%;
  background-color: black;
  color: white;
}

/* ＋アイコン */
.accordion-open::before,
.accordion-open::after {
  content: '';
  width: calc(100vw/60);
  height: 3px;
  background: #000;
  position: absolute;
  top: 50%;
  right: 5%;
  transform: translateY(-50%);
}

/* アイコンのー */
.accordion-open::after {
  transform: translateY(-50%) rotate(90deg);
  transition: .5s;
}

/* アコーディオンが開いたらーに */
.accordion-hidden:checked+.accordion-open:after {
  transform: translateY(-50%) rotate(0);
}

/* アコーディオン中身部分 */
.accordion-inner {
  width: 70%;
  display: block;
  height: 0;
  padding: 0;
  opacity: 0;
  transition: 0.5s;
  /* 表示速度の設定 */
  cursor: pointer;
  /*回答の位置調整*/
  display: flex;
  justify-content: center;
  font-size: calc(100vw/80);
}

/* チェックボックスにチェックが入ったら中身部分を表示する */
.accordion-hidden:checked+.accordion-open+.accordion-inner {
  height: auto;
  opacity: 1;
  padding: 10px;
}


/* フッター */
.footer {
  background-color: white;
  color: black;
  padding: 40px;
  text-align: center;
  width: 40%;
  margin: 0 auto;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* 2列のグリッド */
  grid-template-rows: repeat(4, auto); /* 4行のグリッド */
  gap: 20%;
  margin-bottom: 20%;
  font-size: calc(100vw/80); /* テキストのサイズ */
}

.footer-links a {
  color: black;
  text-decoration: none;
}

.footer-bottom {
  font-size: calc(100vw/100);
}

/** レスポンシブ対応 **/
@media (max-width: 960px) {
}

@media (max-width: 600px) {
  /* ヘッダー */
  header {
    padding: 10px;
  }

  #logo {
    width: 90%;
  }

  nav ul li {
    font-size: calc(100vw/50);
    margin-right: 5%;
    margin: 0 0 0 auto;
  }

  /* 共通セクション */
  h2 {
    font-size: calc(100vw/30);
  }
  
  h3 {
    font-size: calc(100vw/20);
  }

  /* メッセージセクション */
  .highlight-word {
    font-size: calc(100vw/20);
    font-weight: bold;
  }
  
  .normal-word {
    font-size: calc(100vw/40);
  }

  /* プログラムセクション */
  .for-pc {
    display: none;
  }
  
  .for-sp {
    display: block;
  }

  .grid-section {
    grid-template-columns: none;
    width: 80%;
  }

  .grid-block-1 {
    margin: 0;
  }

  .grid-block-2 {
    margin: 0;
  }

  .centered-text {
    font-size: calc(100vw/10);
  }
  
  .train-summary {
    font-size: calc(100vw/40);
  }
  
  .train-description {
    font-size: calc(100vw/50);
  }
  
  .stretch-summary {
    font-size: calc(100vw/40);
  }
  
  .stretch-description {
    font-size: calc(100vw/50);
  }

  /* 料金セクション */
  .plan-sec .content-blocks {
    width: 90%;
  }

  .content-blocks {
    display: block;
    font-size: calc(100vw/30);
  }
  
  .light-course,.advance-course {
    width: auto;
  }

  .light-course {
    margin-bottom: 10%;
  }

  .charge {
    font-size: calc(100vw/20);
  }
  
  .light-course p {
    font-size: calc(100vw/30);
  }
  
  .advance-course p {
    font-size: calc(100vw/30);
  }

  .price-list {
    width: 80%;
    margin-top: 10%;
  }
  
  .price-list img {
    width: 100%;
  }

  /* 初回の流れセクション */
  .content {
    width: 80%;
  }

  .rectangle {
    width: calc(100vw/90);
    height: calc(100vw/20);
  }
  
  .content span {
    font-size: calc(100vw/20);
  }
  
  .session-sec p {
    font-size: calc(100vw/30);
  }

  /* 予約セクション */
  .reservation-sec .button{
    font-size: calc(100vw/30);
  }

  /* トレーナー紹介セクション */
  .profile-container {
    display: block;
  }

  .profile-content h4 {
    font-size: calc(100vw/20);
    margin-top: 5%;
  }
  
  .profile-content h5 {
    font-size: calc(100vw/30);
    margin-top: 0;
  }
  
  .profile-content h6 {
    font-size: calc(100vw/30);
  }

  .profile-content p {
    font-size: calc(100vw/30);
  }

  /* Q&Aセクション */
  .accordion-open {
    width: 90%;
    font-size: calc(100vw/30);
  }

  .accordion-inner {
    font-size: calc(100vw/30);
  }

  .accordion-open::before,
  .accordion-open::after {
    width: calc(100vw/50);
  }

  /* フッター */
  .footer {
    width: 40%;
  }

  .footer-links {
    gap: 20%;
    margin-bottom: 40%;
    font-size: calc(100vw/40);
  }
}