/*------------------------------
  side copy
------------------------------*/
.side-copy {
  display: none;
}

@media (min-width: 1300px) {
  .side-copy {
    position: fixed;
    top: calc(50% + (var(--header-height, 0px) / 2) + 16px);
    left: max(0px, calc((100vw - 1200px) / 2 - 100px));
    transform: translateY(-50%) rotate(0deg);
    writing-mode: vertical-rl;
    white-space: nowrap;
    font-size: 40px;
    color: rgba(0, 45, 67, 0.25);
    pointer-events: none;
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease;
    display: block;
  }

  .side-copy.is-visible {
    opacity: 1;
    visibility: visible;
  }
}

/*------------------------------
  main visual
------------------------------*/
.main-visual {
  width: 100%;
  overflow: hidden;
}

.main-visual-image {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  animation: mv-fade-in 1.4s ease 0.15s forwards;
}

@keyframes mv-fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .main-visual-image {
    opacity: 1;
    animation: none;
  }
}

/*------------------------------
  section common
------------------------------*/
.section-block {
  padding: 40px 14px 60px;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-heading {
  font-size: 1.37rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary-color);
  text-align: center;
}

/*------------------------------
  topics
------------------------------*/
.topics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.topics-button {
  display: flex;
  width: fit-content;
  margin: 24px auto 0;
}

.topic-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-color);
  transition: transform 0.25s ease;
}

.topic-image {
  display: none;
  width: 100%;
  height: 200px;
  object-fit: cover;
  object-position: center;
  border-radius: 8px;
  margin-bottom: 6px;
}

.topic-category {
  font-size: 0.87rem;
  font-weight: 700;
  color: var(--text-link-color);
}

.topic-title {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.7;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.15em;
  transition: text-decoration-color 0.25s ease;
}

.topic-date {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.87rem;
  color: var(--text-gray-color);
}

.topic-date::after {
  content: "";
  width: 42px;
  height: 26px;
  margin-left: auto;
  background-image: url("../../img/common/icon_arrow.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 10px 18px;
  background-color: var(--primary-color);
  transition: background-color 0.25s ease;
  border-radius: 999px;
  display: inline-block;
  flex-shrink: 0;
}

/*------------------------------
  about
------------------------------*/
.about-section {
  background-image: url("../../img/top/back_border.svg");
  background-repeat: repeat;
  background-position: top left;
}

.about-block {
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
}

.about-block + .about-block {
  margin-top: 30px;
}

.about-content {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  order: 1;
  padding: 54px 16px 20px;
  background-color: var(--white-color);
}

.about-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 148px;
  height: 34px;
  background-image: url("../../img/top/tag_about01.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

.about-block:nth-of-type(2) .about-content::before {
  background-image: url("../../img/top/tag_about02.svg");
}

.about-block:nth-of-type(3) .about-content::before {
  background-image: url("../../img/top/tag_about03.svg");
}

.about-block:nth-of-type(4) .about-content::before {
  background-image: url("../../img/top/tag_about04.svg");
}

.about-block:nth-of-type(5) .about-content::before {
  background-image: url("../../img/top/tag_about05.svg");
}

.about-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.5;
}

.about-text {
  font-size: 1rem;
  line-height: 1.9;
}

.about-links {
  display: grid;
  gap: 10px;
  margin: 0;
}

.about-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 8px 12px;
  border-bottom: 1px solid var(--line-color);
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.15em;
  transition: text-decoration-color 0.25s ease;
}

.about-links a::after {
  content: "";
  width: 42px;
  height: 26px;
  flex: 0 0 42px;
  background-image: url("../../img/common/icon_arrow.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 10px 18px;
  background-color: var(--primary-color);
  transition: background-color 0.25s ease;
  border-radius: 999px;
  display: inline-block;
}

.icon-link {
  vertical-align: middle;
}

.link-with-icon {
  display: flex;
  align-items: center;
  gap: 4px;
}

.about-image-wrap {
  width: 100%;
  order: 2;
  margin: 0;
}

.about-image {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 0;
}

.pamphlet {
  margin-top: 30px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  width: 100%;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 16px;
  overflow: hidden;
  background-color: rgba(4, 73, 107, 0.16);
}

.pamphlet-image-wrap {
  margin: 0;
  flex: 0 0 80px;
  max-width: 80px;
  display: flex;
}

.pamphlet-image {
  display: block;
  width: 80px;
  height: auto;
  object-fit: contain;
}

.pamphlet-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  padding: 0;
}

.pamphlet-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--primary-color);
}

.pamphlet-text {
  font-size: 1rem;
  line-height: 1.9;
}

.pamphlet-button {
  width: fit-content;
}

/*------------------------------
  admissions
------------------------------*/
.admissions-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 auto;
}

.admissions-table th,
.admissions-table td {
  border-bottom: 1px solid var(--line-color);
  padding: 18px 10px;
  text-align: left;
  vertical-align: top;
}

.admissions-table th {
  width: 25%;
  font-weight: 700;
}

.admissions-table td {
  width: 75%;
  line-height: 1.4;
}

.admissions-info{
  width: 100%;
  text-align: center;
  font-weight: 700;
  padding: 30px 10px;
  margin: 20px auto 0;
  background-color: var(--background-color);
}

.admissions-link {
  color: var(--text-link-color);
  display: inline-flex;
  align-items: center;
  gap: 0;
  margin: 0 6px;
}

.admissions-link::after {
  content: "";
  width: 18px;
  height: 18px;
  background-image: url("../../img/common/icon_open_org.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  flex-shrink: 0;
}

@media (hover: hover) and (pointer: fine) {
  .admissions-link:hover {
    text-decoration: underline;
    text-underline-offset: 0.15em;
  }

  .about-links a:hover::after {
    background-color: var(--text-link-color);
  }

  .about-links a:hover {
    text-decoration-color: currentColor;
  }

  .topic-card:hover {
    transform: translateY(-4px);
  }

  .topic-card:hover .topic-title {
    text-decoration-color: currentColor;
  }

  .topic-card:hover .topic-date::after {
    background-color: var(--text-link-color);
  }
}

.admissions-section {
  padding-bottom: 20px;
}

/*------------------------------
 contact
------------------------------*/
.contact-inner {
  width: 100%;
  max-width: none;
  background-color: var(--primary-color);
  text-align: center;
  padding: 40px 15px;
  border-radius: 8px;
}

.contact-heading{
  font-size: 1.37rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--secondary-color);
  text-align: center;
}

.contact-info{
  color: var(--white-color);
  text-align: left;
}

.contact-name{
  color: var(--white-color);
  font-weight: 700;
  margin-top: 30px;
  text-align: left;
  line-height: 1.5;
}

.contact-address{
  color: var(--white-color);
  font-weight: 700;
  margin-top: 10px;
  text-align: left;
  line-height: 1.5;
}

.contact-mail{
  color: var(--white-color);
  font-size: 1.25rem;
  font-weight: 700;
  text-align: left;
  margin-top: 10px;
}

.contact-mail span{
  font-weight: 400;
  font-size: 0.87rem;
  margin-right: 6px;
}

.contact-form{
  margin: 30px 0 0;
  padding: 30px 10px;
  text-align: center;
  background-color: var(--white-color);
  border-radius: 8px;
}

.contact-form-heading{
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--primary-color);
  text-align: center;
} 

.contact-form-info{
  text-align: left;
  margin-bottom: 14px;
}

/*------------------------------
  【TOP】Instagram
------------------------------*/
.instagram-heading{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 1.37rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-link-color);
  text-align: center;
}

.instagram-heading::before {
  content: "";
  width: 27px;
  height: 27px;
  background-image: url("../../img/top/Instagram.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  flex-shrink: 0;
}

.instagram-name{
  width: 200px;
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  padding: 6px 10px; 
  margin: 0 auto;
  background-color: var(--background-color);
}

/* Instagram Feed */
.instagram-container {
  width: 100%;
  margin: 20px 0;
}

.instagram-feed__list {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.instagram-feed__slide {
  flex: 1 1 calc(50% - 5px);
  max-width: calc(50% - 5px);
}

.instagram-feed__slide img {
  width: 100%;
  height: auto;
  object-fit: cover;
}


@media screen and (min-width: 769px) {
  .instagram-container {
    max-width: 860px;
    padding-bottom: 20px;
    margin: 20px auto 0;
  }

  .instagram-feed__slide {
    flex: 1 1 calc(33.333% - 6.66px);
    max-width: calc(33.333% - 6.66px);
  }
}


@media (min-width: 769px) {
  .topic-card {
    border-bottom: none;
  }

  .main-visual-image {
    height: 580px;
  }

  .section-block {
    padding: 60px 30px 90px;
  }

  .topics-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 45px;
  }

  .section-heading {
    font-size: 1.75rem;
    margin-bottom: 30px;
  }

  .topic-image {
    display: block;
  }

  .about-block {
    flex-direction: row;
    align-items: stretch;
  }

  .about-block + .about-block {
    margin-top: 40px;
  }

  .about-block:nth-of-type(even) {
    flex-direction: row-reverse;
  }

  .about-content {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 80px 26px 60px;
    justify-content: center;
  }

  .about-content::before {
    width: 186px;
    height: 43px;
  }

  .about-title {
    font-size: 1.43rem;
  }

  .about-image-wrap {
    flex: 0 0 50%;
    max-width: 50%;
    display: flex;
  }

  .about-image {
    height: 100%;
    min-height: 320px;
  }

  .pamphlet {
    margin-top: 40px;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 28px 34px;
  }

  .pamphlet-image-wrap {
    flex: 0 0 166px;
    max-width: 166px;
    display: flex;
  }

  .pamphlet-image {
    width: 166px;
    height: auto;
  }

  .pamphlet-content {
    justify-content: center;
    padding: 0;
  }

  .pamphlet-title {
    font-size: 1.25rem;
    margin-bottom: 10px;
  }

  .admissions-table {
    width: 100%;
    max-width: 860px;
    margin-left: auto;
    margin-right: auto;
  }

  .admissions-table th {
    width: 15%;
  }

  .admissions-table td {
    width: 85%;
  }

  .admissions-info {
    width: 100%;
    max-width: 860px;
  }

  .admissions-section {
    padding-bottom: 30px;
  }

  .contact-inner {
    padding: 40px 15px;
  }

  .contact-heading {
    font-size: 1.75rem;
  }

  .contact-info,
  .contact-name,
  .contact-address {
    text-align: center;
  }

  .contact-mail {
    text-align: center;
    margin-top: 4px;
  }

  .contact-mail span {
    margin-left: 16px;
  }

  .contact-form {
    max-width: 860px;
    margin: 40px auto 0;
  }

  .contact-form-heading {
    font-size: 1.5rem;
  }

  .contact-form-info {
    text-align: center;
  }

  .instagram-heading {
    font-size: 1.75rem;
  }
}


@media (min-width: 769px) and (max-width: 1024px) {
  .topic-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    object-position: center;
  }
}