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リセット・ノーマライズ
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/* リセットCSS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* body全体の基本設定 */
body {
  font-family: "Jost", "Noto Sans JP", sans-serif;
  font-optical-sizing: auto;
  font-weight: <weight>;
  font-style: normal;
  color: #333;
  background-color: #fff;
  line-height: 1.8;
  margin: 0;
  padding: 0;
}

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共通レイアウト
------------------------
main {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 16px;
}

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文字のスタイル
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h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: #222;
  margin-block-start: 0;
  margin-block-end: 0;
}

h1 {
  font-size: 2rem;
  margin-top: 0;
  margin-bottom: 0.5em;
}

h3 {
  font-size: 1.4rem;
  line-height: 1.8;
  letter-spacing: 0.05rem;
  margin-bottom: 40px;
}

p {
  font-size: 1rem;
  margin-bottom: 1.5em;
}

.text-highlight{
  color: #F18E1D;
  font-weight: 600;
}

.text-strong {
  font-weight: bold;
}

.additional {
  text-align: right;
  font-size: 0.6rem;
}

------------------------
リンクやボタンの共通スタイル
------------------------
a {
  color: #007bff;
  text-decoration: none;
  transition: 0.3s;
}

.btn_additional {
  font-size: 0.7rem;
}
/* ボタン全体 */
.cta-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* 共通ボタンスタイル */
.cta-buttons__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 280px;
  height: 64px;
  border-radius: 999px;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.2s, opacity 0.2s;
  position: relative;
}

.cta-buttons__btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

/* ボタン色ごとの修飾 */
.cta-buttons__btn--request {
  background-color: #FA7169; /* 赤みのあるコーラル */
  box-shadow: 0px 5px #D8443C;
}

.cta-buttons__btn--seminar {
  background-color: #08C0B7; /* ティールグリーン */
  box-shadow: 0px 5px #2C9893;
}

.cta-buttons__btn::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  right: 25px;
  width: 22px;
  height: 22px;
  margin: auto;
  border-radius: 20px;
  background-color: #fff;
}

.cta-buttons__btn--request::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  right: 33px;
  width: 8px;
  height: 8px;
  margin: auto;
  border-top: 2px solid #e1736a;
  border-right: 2px solid #e1736a;
  transform: rotate(45deg);
  box-sizing: border-box;
}

.cta-buttons__btn--seminar::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  right: 33px;
  width: 8px;
  height: 8px;
  margin: auto;
  border-top: 2px solid #3cb7ac;
  border-right: 2px solid #3cb7ac;
  transform: rotate(45deg);
  box-sizing: border-box;
}



------------------------
ユーティリティクラス
------------------------
.is-hidden__sp {
  display: block;
}

.is-hidden__pc {
  display: none;
}

.text_center {
  text-align: center;
}

.text_right {
  text-align: right;
}

.mt-20 {
  margin-top: 20px !important;
}

.mt-30 {
  margin-top: 30px !important;
}

.mb-10 {
  margin-bottom: 10px !important;
}

.mb-30 {
  margin-bottom: 30px !important;
}

.mb-40 {
  margin-bottom: 40px !important;
}

.mb-60 {
  margin-bottom: 60px !important;
}

.mb-80 {
  margin-bottom: 80px !important;
}

.mb-100 {
  margin-bottom: 100px !important;
}

.pb-10 {
  padding-bottom: 10px !important;
}

.pb-40 {
  padding-bottom: 40px !important;
}

.text-large {
  font-size: 2.6rem;
}

.lh-0 {
  line-height: 0;
}
/* =====
 背景の波 
 ===== */

.wave-svg-bottom {
  width: 100%;
  line-height: 0;
}

/* =====
 section共通 
 ===== */
section {
  width: 100%;
  margin: auto;
  position: relative;
}

section .inner {
  width: 88%;
  margin: 100px auto 100px;
}

section .inner h2 img {
  height: 43px;
}

.img-100 {
  width: 100%;
}

.img-center {
  margin: auto;
}

.ornament_top-right {
  position: absolute;
  top: -35px;
  right: 0;
  z-index: 1;
}

.ornament_top-right img {
  width: auto;
}

.ornament_top-left {
  position: absolute;
  top: 35px;
  left: 0;
  z-index: 1;
}

.ornament_top-left img {
  width: auto;
}

.ornament_bottom-right {
  position: absolute;
  bottom: 0;
  right: 0;
  z-index: 1;
}

.ornament_bottom-right img {
  width: auto;
}

.ornament_bottom-left {
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 1;
}

.ornament_bottom-left img {
  width: auto;
}

/* =====
youtube
===== */
iframe {
  border-radius: 8px;
  overflow: hidden;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
}

.iframe-center {
    width: 100%;
    text-align: center;
}


/* =====
フッター
===== */
.footer_inner {
  width: 90%;
  display: flex;
  justify-content: space-between;
  margin: auto;
  padding-top: 30px;
  padding-bottom: 40px;
}

.footer__text {
  text-align: center;
}

/* SNSアイコン部分 */
.footer__social {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.footer__icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  transition: opacity 0.3s;
}

.footer__icon:hover {
  opacity: 0.7;
}

/* ブランド部分 */
.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.footer__brand a img {
  width: 196px;
}


.footer__text {
  text-align: right;
}

.footer__copy {
  font-size: 0.9rem;
  font-weight: 500;
  margin: 0;
  line-height: 1.5;
}

.footer__sign {
  font-family: 'Brush Script MT', cursive;
  color: #007a3d;
  font-size: 1.1rem;
  margin: 0.2rem 0 0;
}

/* ロゴ部分 */
.footer__logo img {
  width: 90px;
  height: auto;
}

/* ===== 
レスポンシブ対応 
===== */

@media (min-width: 768px) {
  /* 共通 */

  .is-hidden__sp {
    display: none;
  }

  .is-hidden__pc {
    display: block;
  }

  section {
    width: 90%;
    margin: 0 auto 60px;
  }

  section .inner {
    width: 80%;
  }

  .cta-buttons {
    gap: 2rem;
  }


  /* youtube */

  iframe {
    width: 55%;
    height: 55%;
    margin-bottom: 40px;
  }

  .footer__social {
      gap: 2.5rem;
  }

  .footer__brand a img {
    width: 100%;
  }
}


@media (min-width: 961px) {

}