/* ========================================
   リセットCSS
======================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  padding: 0;
  min-width: 320px;
  overflow-x: hidden;

  background: #ffffff;
  color: #111111;

  font-family:
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    Meiryo,
    sans-serif;

  line-height: 1.5;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}


/* ========================================
   ヘッダー
======================================== */

.header {
  position: relative;
  z-index: 1000;
  margin: 0;
}


/* ========================================
   ハンバーガーボタン
======================================== */

.hamburger {
  display: block;

  position: fixed;

  top: 20px;
  right: 20px;

  z-index: 1200;

  width: 55px;
  height: 55px;

  padding: 10px;

  border: none;

  background: #fff;

  cursor: pointer;
}

.hamburger span {
  display: block;

  width: 100%;
  height: 3px;

  margin: 6px 0;

  background: #333;

  transition:
    transform 0.3s ease,
    opacity 0.3s ease;
}


/* ========================================
   ハンバーガー → ×
======================================== */

.hamburger.is-open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}


/* ========================================
   メニューパネル
======================================== */

.menu-panel {
  position: fixed;

  top: 0;
  right: 0;

  z-index: 1100;

  width: 380px;
  max-width: 90vw;
  height: 100vh;

  padding: 100px 30px 30px;

  display: flex;
  flex-direction: column;

  justify-content: flex-start;
  align-items: stretch;

  gap: 25px;

  background: rgba(255, 255, 255, 0.97);

  box-shadow:
    -5px 0 20px rgba(0, 0, 0, 0.12);

  transform: translateX(100%);

  transition:
    transform 0.35s ease;

  overflow-y: auto;
}

.menu-panel.is-open {
  transform: translateX(0);
}


/* ========================================
   ナビゲーション
======================================== */

.nav-item {
  position: relative;

  font-family: "Inter", sans-serif;

  font-size: 35px;
  font-weight: 400;

  line-height: 1;

  white-space: nowrap;
}

.nav-row {
  display: flex;

  align-items: center;

  gap: 5px;
}

.nav-row > a {
  color: inherit;
  text-decoration: none;
}


/* ========================================
   サブメニュー開閉ボタン
======================================== */

.submenu-toggle {
  padding: 0;

  border: 0;

  background: transparent;

  color: inherit;

  font-size: 22px;

  line-height: 1;

  cursor: pointer;

  transition:
    transform 0.3s ease;
}


/* ========================================
   ナビゲーションカラー
======================================== */

.menu {
  color: #007aba;
}

.nav-info {
  color: rgba(185, 98, 157, 0.75);
}

.nav-visit {
  color: #3d8739;
}

.other {
  color: rgba(173, 111, 231, 0.75);
}


/* ========================================
   サブメニュー
======================================== */

.submenu {
  position: static;

  min-width: 0;

  margin-top: 15px;

  padding: 0;

  background: transparent;

  border-radius: 0;

  box-shadow: none;

  opacity: 0;

  visibility: hidden;

  max-height: 0;

  overflow: hidden;

  transform: none;

  transition:
    opacity 0.25s ease,
    max-height 0.3s ease,
    visibility 0.25s ease;
}

.nav-item.is-open .submenu {
  opacity: 1;

  visibility: visible;

  max-height: 500px;
}

.submenu a {
  display: block;

  padding: 10px 15px;

  color: #333;

  font-family: "Inter", sans-serif;

  font-size: 18px;

  line-height: 1.3;

  text-decoration: none;

  transition:
    background-color 0.2s ease,
    padding-left 0.2s ease;
}

.submenu a:hover {
  background: rgba(0, 0, 0, 0.05);

  padding-left: 22px;
}

.nav-item.is-open .submenu-toggle {
  transform: rotate(90deg);
}

/* ========================================
   ページ全体
======================================== */

.info-page {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

/* ========================================
   ページ上部画像
======================================== */

.top-image {
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.top-image img {
  display: block;
  width: 100%;
  height: auto;
  max-width: none;
}
/* ========================================
   各セクション
======================================== */

.info-section {
  position: relative;
  width: 100%;
  min-height: 700px;

  padding: 80px 5% 90px;

  overflow: hidden;
}

/* 本文の幅を統一 */

.section-inner {
  position: relative;
  z-index: 5;

  width: 100%;
  max-width: 1100px;

  margin: 0 auto;
}


/* ========================================
   左右の装飾画像
======================================== */

.side-decoration {
  position: absolute;
  z-index: 2;

  display: block;

  width: auto;
  height: 100%;

  max-width: 15vw;
  max-height: 100%;

  top: 0;

  pointer-events: none;
  user-select: none;
}

/* 左側 */

.side-left {
  left: 0;
  right: auto;
}

/* 右側 */

.side-right {
  right: 0;
  left: auto;
}

/* 1500px以下で非表示 */

@media screen and (max-width: 1500px) {
  .side-decoration {
    display: none;
  }
}


/* ========================================
   セクションタイトル
======================================== */

.section-title {
  width: 100%;
  margin: 0 auto 55px;

  text-align: center;

  font-size: clamp(30px, 4vw, 70px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: 0.04em;
}


/* ========================================
   ① 企画検索
======================================== */

.project-search-section {
  min-height: 650px;
}

/* 写真と説明 */

.project-intro {
  display: flex;
  align-items: flex-start;
  gap: 35px;

  width: 100%;
  max-width: 850px;

  margin: 0 auto 35px;
}

/* ステージ写真 */

.project-photo {
  flex: 0 0 48%;
  min-width: 0;
  overflow: hidden;
}

.project-photo img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 説明 */

.project-text {
  flex: 1;
  min-width: 0;
  padding-top: 5px;
}

.project-text p {
  margin: 0 0 16px;

  font-size: 20px;
  font-weight: 500;
  line-height: 1.9;
}


/* ========================================
   検索画像
======================================== */

.search-image {
  width: 100%;
  max-width: 850px;
  margin: 0 auto;
}

.search-image img {
  display: block;
  width: 100%;
  height: auto;
}


/* ========================================
   ② タイムテーブル
======================================== */

.timetable-content {
  display: flex;
  align-items: flex-start;
  gap: 35px;

  width: 100%;
  max-width: 950px;

  margin: 0 auto;
}

/* 開場案内図 */

.timetable-map {
  flex: 0 0 55%;
  min-width: 0;
}

.timetable-map img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* 右側の説明 */

.timetable-text {
  flex: 1;
  min-width: 0;
  padding-top: 5px;
}

.timetable-text p {
  margin-bottom: 16px;

  font-size: 20px;
  font-weight: 500;
  line-height: 1.9;
}


/* ========================================
   詳しくはこちら・企画一覧はこちら
======================================== */

.more-button {
  position: relative;
  z-index: 20;

  display: flex;
  align-items: center;
  justify-content: flex-end;

  width: 100%;
  height: 45px;
  min-height: 45px;

  margin: 28px 0 0;
  padding: 0;

  line-height: 1;
  flex-shrink: 0;
}

.more-button a {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  width: 170px;
  height: 45px;
  min-height: 45px;

  padding: 7px 18px;

  border-radius: 5px;

  background: linear-gradient(
    90deg,
    #ee82c9 0%,
    #b57ee5 50%,
    #4ba9d4 100%
  );

  color: #ffffff;

  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;

  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.more-button span {
  display: block;
  white-space: nowrap;
}

.more-button a:hover {
  transform: translateY(-2px);
  opacity: 0.85;
}

/* 各ボタンの余白を統一 */

.project-search-section .more-button,
.timetable-section .more-button,
.festival-project-section .more-button {
  margin-top: 28px;
}


/* ========================================
   ③ 文化祭企画
======================================== */

.special-project {
  width: 100%;
  margin-bottom: 55px;
}

/* タイトル */

.special-title {
  width: 100%;
  margin-bottom: 20px;

  font-size: 30px;
  font-weight: 800;
  line-height: 1.4;
}

/* ポスターと文章 */

.special-content {
  display: flex;
  align-items: flex-start;
  gap: 29px;

  width: 100%;
}

/* ポスター */

.special-poster {
  flex: 0 0 48%;
  min-width: 0;
}

.special-poster img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* 文章 */

.special-text {
  flex: 1;
  min-width: 0;
}

.special-text p {
  margin-bottom: 16px;

  font-size: 20px;
  font-weight: 500;
  line-height: 1.9;
}


/* ========================================
   アンブレラスカイ
======================================== */

.umbrella-photo img {
  min-height: 180px;
  object-fit: cover;
}


/* ========================================
   フッター
======================================== */

.footer {
  position: relative;

  width: 100%;
  margin: 0;
  padding: 0;

  background: linear-gradient(
    110deg,
    #b9e4fa 0%,
    #d9ecfa 45%,
    #eee6fb 100%
  );

  font-family:
    Arial,
    "Noto Sans JP",
    sans-serif;

  overflow: hidden;
}


/* ========================================
   フッター上部装飾
======================================== */

.footer-decoration {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.footer-decoration img {
  display: block;

  width: 100%;
  height: 100%;

  object-fit: cover;
  object-position: center;
}


/* ========================================
   フッタータイトル
======================================== */

.footer-title {
  display: flex;
  align-items: flex-end;
  gap: 18px;

  width: 100%;
  height: 88px;

  padding: 0 36px 5px;

  color: #000000;
  font-size: 30px;
  line-height: 1;
}

.footer-title-en {
  font-style: italic;
  font-weight: 900;
}

.footer-title-jp {
  font-style: normal;
  font-weight: 900;
}


/* ========================================
   タイトル下横線
======================================== */

.footer-line {
  width: 100%;
  height: 3px;
  background: #000000;
}


/* ========================================
   フッター本体
======================================== */

.footer-content {
  display: grid;

  grid-template-columns:
    minmax(0, 0.8fr)
    minmax(0, 0.9fr)
    minmax(0, 1fr)
    minmax(0, 1fr);

  column-gap: 30px;

  width: 100%;
  max-width: 1600px;

  margin: 0 auto;
  padding: 25px 5% 35px;

  align-items: start;
}


/* ========================================
   連絡先
======================================== */

.footer-contact {
  min-width: 0;

  color: #000000;
  font-size: 18px;
  line-height: 1.2;
}

.contact-name {
  margin-bottom: 3px;
}

.contact-mail {
  margin-bottom: 14px;
  font-size: 16px;
  word-break: break-word;
}

.contact-school {
  margin-bottom: 13px;
  font-size: 14px;
  line-height: 1.35;
}

.contact-tel {
  font-size: 14px;
  line-height: 1.4;
}


/* ========================================
   SNS
======================================== */

.footer-sns {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;

  margin-top: 18px;
}

.footer-sns a {
  display: flex;
  align-items: center;
  justify-content: center;

  width: 30px;
  height: 30px;

  flex-shrink: 0;
  color: #000000;

  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.footer-sns i {
  font-size: 40px;
  line-height: 1;
}

.footer-sns a:hover {
  transform: translateY(-3px);
  opacity: 0.7;
}

/* Xだけ少し小さく */

.footer-sns .sns-x i {
  font-size: 36px;
}


/* ========================================
   テーマロゴ
======================================== */

.theme-logo {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;

  width: 100%;
  min-width: 0;
}

.theme-logo img {
  display: block;

  width: 100%;
  max-width: 250px;
  height: auto;

  object-fit: contain;
}


/* ========================================
   フッターナビ
======================================== */

.footer-navigation {
  display: flex;
  flex-direction: column;
  gap: 45px;

  min-width: 0;
}

.footer-menu {
  position: relative;
}

.footer-menu-title {
  display: block;

  margin-bottom: 8px;

  font-size: 25px;
  font-weight: 400;
  line-height: 1;

  color: inherit;
  white-space: nowrap;

  transition: opacity 0.2s ease;
}

.footer-menu-title:hover {
  opacity: 0.65;
}

.footer-menu-list {
  position: relative;

  display: flex;
  flex-direction: column;
  gap: 5px;

  padding-left: 12px;
}

.footer-menu-list::before {
  content: "";

  position: absolute;
  top: 0;
  bottom: 0;
  left: 3px;

  width: 2px;
  background: currentColor;
}

.footer-menu-list a {
  font-size: 15px;
  line-height: 1.2;

  color: inherit;
  transition: opacity 0.2s ease;
}

.footer-menu-list a:hover {
  opacity: 0.65;
}


/* ========================================
   フッターメニューカラー
======================================== */

.menu-home {
  color: #333333;
}

.menu-about {
  color: #0082c4;
}

.menu-visit {
  color: #3c963b;
}

.menu-info {
  color: #d889bd;
}

.menu-other {
  color: #ae7ae9;
}


/* ========================================
   タブレット
======================================== */

@media screen and (max-width: 900px) {

  /* ----------------------------
     各セクション
  ---------------------------- */

  .info-section {
    min-height: 0;
    padding: 65px 5% 70px;
  }

  .section-title {
    margin-bottom: 40px;
    font-size: clamp(30px, 5vw, 45px);
  }

  /* ----------------------------
     企画検索
  ---------------------------- */

  .project-intro {
    gap: 22px;
  }

  .project-text p {
    font-size: 16px;
  }

  /* ----------------------------
     タイムテーブル
  ---------------------------- */

  .timetable-content {
    gap: 22px;
  }

  .timetable-map {
    flex-basis: 52%;
  }

  .timetable-text p {
    font-size: 13px;
  }

  /* ----------------------------
     文化祭企画
  ---------------------------- */

  .special-content {
    gap: 22px;
  }

  .special-title {
    font-size: 23px;
  }

  .special-text p {
    font-size: 14px;
  }

  /* ----------------------------
     ボタン
  ---------------------------- */

  .more-button {
    height: 40px;
    min-height: 40px;
  }

  .more-button a {
    width: 150px;
    height: 40px;
    min-height: 40px;
    font-size: 15px;
  }

  /* ----------------------------
     フッター
  ---------------------------- */

  .footer-decoration {
    height: 120px;
  }

  .footer-title {
    height: 60px;
    gap: 10px;
    padding: 0 20px 6px;
    font-size: 20px;
  }

  .footer-content {
    grid-template-columns:
      minmax(0, 1fr)
      minmax(0, 1fr);

    gap: 30px 20px;
    padding: 25px 20px 35px;
  }

  .footer-contact {
    grid-column: 1;
    grid-row: 1;
    font-size: 16px;
  }

  .contact-mail {
    font-size: 13px;
  }

  .contact-school {
    font-size: 12px;
  }

  .contact-tel {
    font-size: 12px;
  }

  .theme-logo {
    grid-column: 2;
    grid-row: 1;
  }

  .theme-logo img {
    max-width: 200px;
  }

  .footer-navigation {
    grid-column: 1;
    grid-row: 2;
    gap: 30px;
  }

  .footer-navigation-right {
    grid-column: 2;
    grid-row: 2;
    gap: 30px;
  }

  .footer-menu-title {
    font-size: 18px;
    white-space: normal;
  }

  .footer-menu-list {
    gap: 4px;
    padding-left: 10px;
  }

  .footer-menu-list a {
    font-size: 12px;
    line-height: 1.3;
  }

  .footer-sns {
    gap: 8px;
    margin-top: 12px;
  }

  .footer-sns a {
    width: 38px;
    height: 38px;
  }

  .footer-sns i {
    font-size: 32px;
  }

  .footer-sns .sns-x i {
    font-size: 29px;
  }

  /* ----------------------------
     カウントダウン
  ---------------------------- */

  .count-area {
    height: clamp(350px, 70vw, 500px);
  }

  .count-backgrounds {
    height: 100%;
    min-height: 0;
  }

  .countdown-wrapper {
    width: 75%;
  }

  .countdown-title {
    top: 8%;
    font-size: clamp(24px, 5vw, 45px);
  }

  .countdown {
    top: 45%;
  }

  .count-content span {
    font-size: clamp(18px, 5vw, 55px);
  }

  .count-content small {
    font-size: clamp(6px, 1.8vw, 12px);
  }
}


/* ========================================
   スマートフォン
======================================== */

@media screen and (max-width: 600px) {

  /* ----------------------------
     各セクション
  ---------------------------- */

  .info-section {
    padding: 50px 5% 60px;
  }

  .section-title {
    margin-bottom: 30px;
    font-size: clamp(26px, 7vw, 36px);
  }

  /* ----------------------------
     企画検索
  ---------------------------- */

  .project-intro {
    gap: 15px;
    margin-bottom: 25px;
  }

  .project-text {
    padding-top: 0;
  }

  .project-text p {
    margin-bottom: 10px;
    font-size: 12px;
    line-height: 1.8;
  }

  /* ----------------------------
     タイムテーブル
  ---------------------------- */

  .timetable-content {
    gap: 12px;
  }

  .timetable-map {
    flex-basis: 48%;
  }

  .timetable-text {
    padding-top: 0;
  }

  .timetable-text p {
    margin-bottom: 10px;
    font-size: 11px;
    line-height: 1.8;
  }

  /* ----------------------------
     文化祭企画
  ---------------------------- */

  .special-project {
    margin-bottom: 40px;
  }

  .special-title {
    margin-bottom: 15px;
    font-size: 20px;
  }

  .special-content {
    gap: 15px;
  }

  .special-poster {
    flex-basis: 45%;
  }

  .special-text p {
    margin-bottom: 12px;
    font-size: 12px;
    line-height: 1.8;
  }

  .umbrella-photo img {
    min-height: 140px;
  }

  /* ----------------------------
     ボタン
  ---------------------------- */

  .more-button {
    height: 35px;
    min-height: 35px;
    margin-top: 22px;
  }

  .project-search-section .more-button,
  .timetable-section .more-button,
  .festival-project-section .more-button {
    margin-top: 22px;
  }

  .more-button a {
    width: 130px;
    height: 35px;
    min-height: 35px;
    padding: 6px 10px;
    font-size: 13px;
  }

  /* ----------------------------
     フッター
  ---------------------------- */

  .footer-content {
    padding: 25px 15px 35px;
    gap: 25px 12px;
  }

  .footer-title {
    padding-left: 15px;
    font-size: 17px;
  }

  .footer-contact {
    font-size: 14px;
  }

  .contact-mail {
    font-size: 11px;
  }

  .contact-school {
    font-size: 10px;
  }

  .contact-tel {
    font-size: 10px;
  }

  .theme-logo img {
    max-width: 180px;
  }

  .footer-menu-title {
    font-size: 16px;
  }

  .footer-menu-list a {
    font-size: 11px;
  }

  .footer-sns {
    gap: 6px;
  }

  .footer-sns a {
    width: 32px;
    height: 32px;
  }

  .footer-sns i {
    font-size: 27px;
  }

  .footer-sns .sns-x i {
    font-size: 25px;
  }
}


/* ========================================
   小さいスマートフォン
======================================== */

@media screen and (max-width: 380px) {

  /* ----------------------------
     各セクション
  ---------------------------- */

  .info-section {
    padding: 40px 4% 50px;
  }

  .section-title {
    font-size: 26px;
  }

  /* ----------------------------
     タイムテーブル
  ---------------------------- */

  .timetable-content {
    gap: 8px;
  }

  .timetable-map {
    flex-basis: 45%;
  }

  .timetable-text p {
    font-size: 10px;
  }

  /* ----------------------------
     文化祭企画
  ---------------------------- */

  .special-title {
    font-size: 18px;
  }

  .special-content {
    gap: 10px;
  }

  .special-poster {
    flex-basis: 43%;
  }

  .special-text p {
    font-size: 11px;
  }

  /* ----------------------------
     ボタン
  ---------------------------- */

  .more-button {
    height: 33px;
    min-height: 33px;
    margin-top: 20px;
  }

  .project-search-section .more-button,
  .timetable-section .more-button,
  .festival-project-section .more-button {
    margin-top: 20px;
  }

  .more-button a {
    width: 120px;
    height: 33px;
    min-height: 33px;
    padding: 5px 8px;
    font-size: 12px;
  }

  /* ----------------------------
     フッター
  ---------------------------- */

  .footer-content {
    padding-right: 12px;
    padding-left: 12px;
  }
}

/* ========================================
   文実企画「詳しくはこちら」
   レスポンシブ左右位置調整
======================================== */

/* PC */
.festival-project-section .more-button a {
  transform: translateX(-100px);
}

/* PC ホバー */
.festival-project-section .more-button a:hover {
  transform: translate(-100px, -2px);
}


/* ========================================
   タブレット
======================================== */

@media screen and (max-width: 900px) {

  .festival-project-section .more-button a {
    transform: translateX(-70px);
  }

  .festival-project-section .more-button a:hover {
    transform: translate(-70px, -2px);
  }

}


/* ========================================
   スマートフォン
======================================== */

@media screen and (max-width: 600px) {

  .festival-project-section .more-button a {
    transform: translateX(-40px);
  }

  .festival-project-section .more-button a:hover {
    transform: translate(-40px, -2px);
  }

}


/* ========================================
   小さいスマートフォン
======================================== */

@media screen and (max-width: 380px) {

  .festival-project-section .more-button a {
    transform: translateX(-20px);
  }

  .festival-project-section .more-button a:hover {
    transform: translate(-20px, -2px);
  }
}