@charset "utf-8";

:root {
  --font-black: #1c1c1c;
  --font-white: #fff;
  --main: #073334;
  --sub: #FFFCE2;
  --accent: #FF3622;

  --f40: clamp(1.875rem, 1.655rem + 0.94vw, 2.5rem); /* 30-40px */
  --f22: clamp(1.125rem, 1.037rem + 0.38vw, 1.375rem); /* 18-22px */
  --f18: clamp(1rem, 0.956rem + 0.19vw, 1.125rem); /* 16-18px */
  --f16: clamp(0.938rem, 0.915rem + 0.09vw, 1rem); /* 15-16px */
}

html {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  color: var(--font-black);
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-style: normal;
  font-size: 100%;
}

main{
  padding-top: 66px;
}

@media screen and (min-width: 768px) {
  main{
    padding-top: 64px;
  }
}

img {
  width: 100%;
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: var(--font-black);
  text-decoration: none;
  transition: 0.3s;
}

@media (hover: hover) {
  a:hover{
    opacity: .6;
  }
}

h2,h3,h4,h5{
  font-family: "Zen Old Mincho", serif;
}

ul,li {
  list-style: none;
}

/* --------------------
共通パーツ
-------------------- */

.caption{
  position: absolute;
  right: 0;
  bottom: 0;
  max-width: 80%;
  padding: 10px 2px;
  color: var(--font-white);
  font-size: .5rem;
}

.hero .caption{
  position: static;
  display: flex;
  justify-content: flex-end;
  margin-left: auto;
}

@media screen and (min-width: 768px) {
  .caption{
    max-width: 60%;
    font-size: .625rem;
  }
}

.sec-title{
  margin-bottom: 30px;
  color: var(--accent);
  font-size: var(--f40);
  font-weight: bold;
  text-align: center;
}

.attention{
  background: linear-gradient(transparent 40%, rgba(255, 54, 34, .5) 40%);
}

.small-txt{
  font-size: .85em;
}

@media screen and (min-width: 768px) {
  .sp-display{
    display: none;
  }
}


/* --------------------
header
-------------------- */

.header{
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  background-color: var(--main);
  z-index: 30;
}

.header__inner{
  max-width: 1920px;
  margin: 0 auto;
  padding: 20px 30px;
  display: flex;
  justify-content: flex-end;
}

/* --- nav --- */
.header__nav{
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--font-black);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .5s, visibility .5s;
  z-index: 40;
}

.header__nav-list{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  margin: 80px 0;
}

.header__nav-link{
  color: var(--font-white);
  font-family: "Zen Old Mincho", serif;
  font-size: 1.25rem;
  font-weight: bold;
}

.header__nav.is-open{
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

body.is-fixed {
  overflow: hidden;
}

@media screen and (min-width: 768px) {
  .header__nav{
    position: static;
    width: auto;
    height: auto;
    background-color: transparent;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .header__nav-list{
    flex-direction: row;
    margin: 0;
  }

  .header__nav-link{
    font-size: 1rem;
  }

  .header__nav-item--sp{
    display: none;
  }
}

/* --- ハンバーガー --- */

.header__hamburger {
  position: relative;
  width: 30px;
  height: 26px;
  border: none;
  background-color: transparent;
  cursor: pointer;
  transition: all .5s;
  z-index: 50;
}

.header__hamburger span{
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--font-white);
  border-radius: 4px;
  transition: all .5s;
}

.header__hamburger span:nth-of-type(1) {
  top: 0;
}
.header__hamburger span:nth-of-type(2) {
  top: 12px;
}
.header__hamburger span:nth-of-type(3) {
  top: 24px;
}

.header__hamburger.is-active span:nth-of-type(1) {
  -webkit-transform: translateY(12px) rotate(-45deg);
  transform: translateY(12px) rotate(-45deg);
}
.header__hamburger.is-active span:nth-of-type(2) {
  opacity: 0;
}
.header__hamburger.is-active span:nth-of-type(3) {
  -webkit-transform: translateY(-12px) rotate(45deg);
  transform: translateY(-12px) rotate(45deg);
}

@media(min-width: 768px) {
  .header__hamburger{
    display: none;
  }
}

/* --------------------
hero
-------------------- */

.hero{
  position: relative;
  background-color: var(--main);
  padding-bottom: 1rem;
}

/* --------------------
開催趣旨
-------------------- */

.about{
  position: relative;
  padding: 60px 0;
  background: linear-gradient(rgba(7, 51, 52, .7), rgba(7, 51, 52, .7)), url(../img/about-bg.jpg);
  background-size: cover;
  background-position: top;
  background-repeat: no-repeat;
}

.about__container{
  width: min(94%, 1100px);
  margin: 0 auto;
  padding: 30px 5%;
  background-color: #0D4041;
  box-shadow: inset 0px 0px 10px 5px rgba(7, 51, 52, 0.7);
}

.about__text{
  color: var(--font-white);
  font-size: var(--f18);
  line-height: 1.7;
}

.about__text .small-txt{
  display: block;
  margin-top: .5rem;
  line-height: 1.3;
}

@media(min-width: 768px) {
  .about{
    padding: 80px 0;
  }

  .about__container{
    padding: 50px 5%;
  }

  .about__text{
    padding: 20px 0;
  }
}

/* --------------------
ニュース
-------------------- */
.news{
  padding: 60px 0 0;
}

.news__inner{
  display: flex;
  align-items: center;
  width: min(94%, 880px);
  height: 170px;
  margin: 0 auto;
  padding: 40px 20px 36px;
  background-color: #fff;
}

.news__title{
  flex-shrink: 0;
  padding: 20px 16px 20px 0;
  border-right: 1px solid var(--accent);
  color: var(--accent);
  font-size: var(--f22);
}

.news__list{
  display: flex;
  flex: auto;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  padding-left: 20px;
  font-size: var(--f18);
}

.news__list dt{
  font-size: var(--f16);
  font-weight: bold;
}

.news__list dd{
  margin-bottom: .5rem;
}

.news__list dd:last-of-type{
  margin-bottom: 0;
}

.news__list::-webkit-scrollbar {
  width: 3px;
}

.news__list::-webkit-scrollbar-thumb {
  background: var(--accent); /* ハンドルの色 */
  border-radius: 30px;
}

.news__list::-webkit-scrollbar-track {
  background: #d9d9d9; /* 背景色 */
  border-radius: 30px;
}

@media(min-width: 768px) {
  .news__inner{
    height: 140px;
    padding: 40px 36px 36px;
  }

  .news__title{
    padding-right: 26px;
  }

  .news__list{
    flex-direction: row;
    flex-wrap: wrap;
    padding-left: 36px;
  }

  .news__list dt{
    width: 20%;
  }

  .news__list dd{
    width: 80%;
  }
}

/* --------------------
巡回情報
-------------------- */

.tour{
  padding: 60px 0;
  background-color: var(--main);
}

.tour__list{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.tour__item{
  position: relative;
  width: min(94%, 600px);
  margin: 0 auto;
  padding: 40px;
  border-radius: 20px;
  background-color: var(--sub);
  box-shadow: 2px 2px 4px 0px rgba(0, 0, 0, 0.3);
  text-align: center;
  transition: transform 0.3s ease;
}

.tour__link{
  display: block;
  padding: 40px; 
}

.tour__item:has(a){
  padding: 0;
}

.tour__item:has(a)::after{
  content: "→";
  position: absolute;
  top: 50%;
  right: 3%;
  transform: translateY(-50%);
  color: var(--font-black);
  font-size: 1.5rem;
  transition: right 0.3s ease;
}

.tour__item:has(a):hover{
  transform: scale(1.02);
}

.tour__item:has(a):hover:after{
  right: 1%;
}

.tour__item.ended{
  order: 1;
  background-color: #d2d2d2;
}

.tour__vanue{
  margin-bottom: 10px;
  font-family: "Zen Old Mincho", serif;
  color: var(--main);
  font-size: var(--f22);
  font-weight: bold;
}

.tour-date{
  font-size: var(--f18);
  font-weight: bold;
}

.tour__item.ended::after{
  content: "閉幕";
  position: absolute;
  top: -20px;
  right: -10px;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  outline: 1px #fff solid;
  outline-offset: -3px;
  background-color: var(--font-black);
  color: var(--font-white);
  font-family: "Zen Old Mincho", serif;
  font-weight: bold;
  line-height: 70px;
}

@media(min-width: 768px) {
  .tour{
    padding: 80px 0;
  }

  .tour__list{
    margin: 60px auto;
  }
}

/* --------------------
みどころ
-------------------- */

.point{
  position: relative;
  padding: 60px 0;
  background: linear-gradient(rgba(7, 51, 52, .7), rgba(7, 51, 52, .7)), url(../img/point-bg.jpg);
  background-size: cover;
  background-position: top;
  background-repeat: no-repeat;
}

.point__list{
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 3%;
}

.point__item{
  padding: 20px;
  border-radius: 40px;
  background-color: #fff;
  outline: 1px var(--main) solid;
  outline-offset: -3px;
  box-shadow: 2px 2px 4px 0px rgba(0, 0, 0, 0.3);
}

.point__list li+li{
  margin-top: 20px;
}

.point__title{
  margin-bottom: 10px;
  font-size: var(--f22);
}

.point__text{
  font-size: var(--f18);
}

@media(min-width: 768px) {
  .point__list{
    margin: 60px auto;
  }
  .point__item{
    width: 80%;
    padding: 20px 60px;
    border-radius: 70px;
  }

  .point__item:nth-of-type(2n){
    margin-left: auto;
  }
}

/* --------------------
章解説
-------------------- */

.explanation{
  padding: 60px 0;
  background-color: var(--sub);
}

.explanation .sec-title{
  color: var(--main);
}

.explanation__cards{
  display: grid;
  grid-template-columns: repeat(auto-fit, 340px);
  justify-content: center;
  gap: 30px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 3%;
}

.modal-toggle {
  display: none;
}

.card {
  display: block;
  background: #fff;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.card__img{
  width: 100%;
  height: auto;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.card__img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.card:hover .card__img img {
  transform: scale(1.1);
}

.card__body {
  position: relative;
  padding: 10px 20px 30px;
}

.card__body::after{
  content: "CLICK";
  position: absolute;
  top: 50%;
  right: 3%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: 1px solid #C91200;
  border-radius: 50%;
  color: #C91200;
  font-size: .6rem;
  font-weight: bold;
  line-height: 40px;
  letter-spacing: .1em;
  text-align: center;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.card:hover .card__body::after{
  background-color: #C91200;
  color: var(--font-white);
}

.chapter__number {
  color: #C91200;
  font-size: var(--f16);
  font-weight: bold;
}

.chapter__title {
  margin: 4px 0 2px;
  font-size: var(--f22);
}

.chapter__sub {
  font-size: var(--f18);
}

@media(min-width: 768px) {
  .explanation__cards{
    margin: 60px auto;
  }
}

/* --- モーダル表示制御 --- */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.modal-toggle:checked ~ .modal {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  z-index: 999;
}

.modal__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
}

.modal__content {
  position: relative;
  width: 90%;
  max-width: 1200px;
  max-height: 90svh;
  padding: 40px 5% 60px;
  overflow-y: auto;
  background-color: #fff;
  z-index: 999;
}

.modal__close {
  position: absolute;
  top: -5px;
  right: 15px;
  color: var(--font-black);
  font-size: 3rem;
  line-height: 1;
  cursor: pointer;
}

.modal__body {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

@media(min-width: 768px) {
  .modal__content {
    padding: 60px;
    overflow-y: visible;
  }

  .modal__close {
    top: -55px;
    right: -15px;
    color: #fff;
  }

  .modal__body {
    flex-direction: row;
    gap: 30px;
  }
}

/* --- ギャラリーエリア --- */
.modal__gallery-area {
  flex-shrink: 0;
}

.modal__gallery-main {
  width: 100%;
  height: 360px;
  text-align: center;
}

.modal__gallery-main img {
  max-width: 100%;
  max-height: 320px;
  object-fit: contain;
}

.modal__caption {
  font-size: 0.8rem;
  color: #333;
  margin-top: 6px;
}

.modal__thumbnail-list {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  justify-content: center;
}

.modal__thumb {
  width: 60px;
  height: 60px;
  object-fit: cover;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.6;
  transition: opacity 0.2s, border-color 0.2s;
}

.modal__thumb:hover {
  opacity: 1;
}

.modal__thumb.is-active {
  opacity: 1;
  border-color: #000;
}

@media(min-width: 768px) {
  .modal__gallery-area {
    width: 40%;
  }
}

/* --- テキストエリア --- */
.modal__text {
  flex: 1;
}

.modal__title {
  margin-bottom: 30px;
  font-size: var(--f22);
  line-height: 1.4;
}

.modal__detail {
  font-size: var(--f18);
  line-height: 1.8;
  color: #333;
}

.modal__highlight {
  margin-top: .5rem;
  color: var(--main);
  font-size: var(--f18);
  font-weight: bold;
}

@media(min-width: 768px) {
  .modal__text {
    width: 60%;
  }
}

/* --------------------
グッズ
-------------------- */

.goods{
  padding: 60px 0;
  background-color: var(--main);
}

.goods__list{
  display: grid;
  grid-template-columns: repeat(auto-fit, 350px);
  justify-content: center;
  gap: 20px;
  max-width: 1400px;
  margin: 0 auto;
  /* padding: 0 1%; */
}

.goods__item{
  display: flex;
  padding: 12px;
  background-color: #fff;
}

.goods__img{
  width: 50%;
  height: 100%;
  aspect-ratio: 1/1;
  object-fit: contain;
}

.goods__img img{
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.goods__body{
  width: 50%;
  padding-left: 3%;
  padding-top: 1rem;
}

.goods__title{
  margin-bottom: .5rem;
  font-size: 1.125rem;
  font-weight: bold;
}

.goods__price{
  color: var(--main);
  font-size: var(--f18);
}

.goods__text{
  margin-top: 1rem;
  font-size: var(--f16);
}

.goods__note{
  max-width: 1280px;
  margin: 20px auto 0;
  padding: 0 3%;
  color: var(--font-white);
  font-size: .85em;
}

@media (min-width: 768px) {
    .goods__list {
        margin: 60px auto 0;
    }
}

@media(min-width: 810px) {
  .goods__list{
    grid-template-columns: repeat(auto-fit, 380px);
  }
}

@media(min-width: 1440px) {
  .goods__list{
    grid-template-columns: repeat(auto-fit, 400px);
    gap: 20px 30px;
  }
}

/* --------------------
お問い合わせ
-------------------- */

.contact{
  position: relative;
  padding: 120px 3%;
  background: linear-gradient(rgba(7, 51, 52, .7), rgba(7, 51, 52, .7)), url(../img/contact-bg.jpg);
  background-size: cover;
  background-position: top;
  background-repeat: no-repeat;
  text-align: center;
}

.contact .sec-title{
  color: var(--font-white);
}

.contact__description{
  margin-bottom: 20px;
  color: var(--font-white);
  font-size: var(--f16);
}

.contact__info, .contact__mail{
  color: var(--font-white);
  font-size: var(--f18);
}

.contact__mail{
  text-decoration: underline;
}

.contact__note{
  margin-top: 40px;
  color: var(--font-white);
  font-size: .85em;
}

@media(min-width: 768px) {
  .contact {
    padding: 220px 0 160px;
  }
}

/* --------------------
TOPへ戻るボタン
-------------------- */

.page-top{
  position: fixed;
  bottom: 25px;
  right: 25px;
  display: none;
  flex-direction: column;
  align-items: center;
  width: 80px;
  height: 80px;
  padding: 14px 0;
  background-color: rgba(28, 28, 28, .8);
  border-radius: 50%;
  border: 1px solid var(--font-white);
  opacity: 0;
  visibility: hidden;
  transition: opacity .5s, visibility .5s, bottom .3s ease;
}

.page-top.is-show {
  opacity: 1;
  visibility: visible;
}

.page-top.is-show:hover {
  transform: translateY(-5px);
}

.page-top__arrow{
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}

.page-top__arrow::after{
  content: "";
  position: absolute;
  left: 50%;
  transform: translate(-50%, 25%) rotate(-45deg);
  display: inline-block;
  vertical-align: middle;
  color: #fff;
  line-height: 1;
  width: 1em;
  height: 1em;
  border: 0.1em solid currentColor;
  border-left: 0;
  border-bottom: 0;
}

.page-top__text{
  color: var(--font-white);
  font-size: 1.5rem;
}

@media(min-width: 768px) {
  .page-top{
    display: flex;
  }
}

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

.footer{
  padding: 20px 0;
  background-color: var(--main);
  text-align: center;
}

.footer__copyright{
  color: var(--font-white);
  font-size: .625rem;
}