/* =========================================================
   INDEX : Instagram Feed / Official Links
   ファイル名：index_instagram.css
   ========================================================= */

.kgc-instagram,
.kgc-official-links {
  --kgc-navy: #123654;
  --kgc-navy-dark: #0a263d;
  --kgc-red: #a20c22;
  --kgc-yellow: #f4c51c;
  --kgc-bg: #f7f8fa;
  --kgc-border: #dce2e7;
  --kgc-text: #243746;
  --kgc-muted: #61717c;
}

.kgc-instagram *,
.kgc-instagram *::before,
.kgc-instagram *::after,
.kgc-official-links *,
.kgc-official-links *::before,
.kgc-official-links *::after {
  box-sizing: border-box;
}

/* ---------------------------------------------------------
   Instagram Feed
   --------------------------------------------------------- */

.kgc-instagram {
  position: relative;
  margin-block: 1rem;
  padding: clamp(62px, 7vw, 96px) 20px clamp(58px, 6vw, 84px);
  overflow: hidden;
  background: var(--kgc-bg);
}

.kgc-instagram__inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding-block: 1rem;
}

.kgc-instagram__heading {
  margin: 0 auto clamp(28px, 4vw, 42px);
  text-align: center;
}

.kgc-instagram__eyebrow {
  margin: 0 0 8px;
  color: var(--kgc-red);
  font-family: "Oswald", sans-serif;
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  font-weight: 600;
  letter-spacing: 0.16em;
  line-height: 1.4;
}

.kgc-instagram__title {
  margin: 0;
  color: var(--kgc-navy-dark);
  font-size: clamp(1.75rem, 3vw, 2.65rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

.kgc-instagram__lead {
  margin: 18px auto 0;
  max-width: 760px;
  color: var(--kgc-text);
  font-size: clamp(0.95rem, 1.35vw, 1.05rem);
  line-height: 1.9;
}

.kgc-instagram__lead span,
.kgc-instagram__notice span {
  display: block;
}

.kgc-instagram__tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0 auto 26px;
}

.kgc-instagram__tab {
  min-height: 48px;
  padding: 10px 22px;
  border: 1px solid var(--kgc-border);
  border-radius: 999px;
  background: #fff;
  color: var(--kgc-navy);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
  cursor: pointer;
  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.kgc-instagram__tab:hover {
  border-color: var(--kgc-navy);
  transform: translateY(-2px);
  box-shadow: 0 5px 14px rgba(10, 38, 61, 0.1);
}

.kgc-instagram__tab:focus-visible,
.kgc-instagram__external:focus-visible,
.kgc-official-card__link:focus-visible {
  outline: 3px solid rgba(244, 197, 28, 0.78);
  outline-offset: 3px;
}

.kgc-instagram__tab.is-active,
.kgc-instagram__tab[aria-selected="true"] {
  border-color: var(--kgc-navy);
  background: var(--kgc-navy);
  color: #fff;
  box-shadow: 0 6px 16px rgba(10, 38, 61, 0.16);
}

.kgc-instagram__panel {
  width: min(720px, 100%);
  margin: 0 auto;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--kgc-border);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(10, 38, 61, 0.06);
}

.kgc-instagram__account {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 20px;
  padding: 0 0 16px;
  border-bottom: 1px solid #e7ebee;
}

.kgc-instagram__account-name {
  position: relative;
  margin: 0;
  padding-left: 17px;
  color: var(--kgc-navy-dark);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 700;
  line-height: 1.5;
}

.kgc-instagram__account-name::before {
  content: "";
  position: absolute;
  top: 0.42em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--kgc-yellow);
}

.kgc-instagram__external {
  flex: 0 0 auto;
  border-radius: 3px;
  color: var(--kgc-navy);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.kgc-instagram__external:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.kgc-instagram__embed {
  display: grid;
  place-items: center;
  min-height: 360px;
  overflow: hidden;
}

.kgc-instagram__embed .instagram-media {
  width: 100% !important;
  min-width: 0 !important;
  max-width: 540px !important;
  margin: 0 auto !important;
}

.kgc-instagram__loading {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 360px;
  padding: 30px;
  border: 1px dashed #c8d1d8;
  border-radius: 14px;
  color: #647681;
  text-align: center;
}

.kgc-instagram__loading::before {
  content: "";
  display: block;
  width: 34px;
  height: 34px;
  margin: 0 auto 16px;
  border: 3px solid #dce2e7;
  border-top-color: var(--kgc-navy);
  border-radius: 50%;
  animation: kgc-instagram-spin 0.85s linear infinite;
}

.kgc-instagram__notice,
.kgc-instagram__noscript {
  margin: 18px auto 0;
  max-width: 720px;
  color: var(--kgc-muted);
  font-size: 0.78rem;
  line-height: 1.8;
  text-align: center;
}

.kgc-instagram__noscript a {
  color: var(--kgc-navy);
  font-weight: 700;
}

@keyframes kgc-instagram-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------------------------------------------------------
   Official Links
   --------------------------------------------------------- */

.kgc-official-links {
  margin-block: 1rem;
  padding: clamp(58px, 6vw, 86px) 20px clamp(68px, 7vw, 102px);
  background: #fff;
}

.kgc-official-links__inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding-block: 1rem;
}

.kgc-official-links__heading {
  margin: 0 auto clamp(28px, 4vw, 42px);
  text-align: center;
}

.kgc-official-links__eyebrow {
  margin: 0 0 6px;
  color: var(--kgc-red);
  font-family: "Oswald", sans-serif;
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  font-weight: 600;
  letter-spacing: 0.15em;
  line-height: 1.4;
}

.kgc-official-links__title {
  margin: 0;
  color: var(--kgc-navy-dark);
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.kgc-official-links__lead {
  margin: 12px auto 0;
  color: var(--kgc-muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.kgc-official-links__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 26px);
}

.kgc-official-card {
  display: flex;
  align-items: center;
  min-height: 230px;
  padding: clamp(20px, 2.5vw, 28px);
  border: 1px solid var(--kgc-border);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 6px 18px rgba(10, 38, 61, 0.045);
}

.kgc-official-card--instagram {
  gap: clamp(18px, 2vw, 26px);
}

.kgc-official-card__qr-wrap {
  flex: 0 0 auto;
  width: 128px;
  padding: 8px;
  border: 1px solid #e5e9ec;
  border-radius: 12px;
  background: #fff;
}

.kgc-official-card__qr {
  display: block;
  width: 100%;
  height: auto;
}

.kgc-official-card__body {
  min-width: 0;
}

.kgc-official-card__label {
  margin: 0;
  color: var(--kgc-navy-dark);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
}

.kgc-official-card__account {
  margin: 8px 0 14px;
  overflow-wrap: anywhere;
  color: var(--kgc-muted);
  font-family: "Oswald", sans-serif;
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  line-height: 1.5;
}

.kgc-official-card__link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-radius: 4px;
  color: var(--kgc-red);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.kgc-official-card__link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.kgc-official-card--portal {
  justify-content: center;
  gap: 22px;
  background: #fbfbfc;
}

.kgc-official-card__portal-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: rgba(162, 12, 34, 0.08);
}

.kgc-official-card__lock {
  position: relative;
  display: block;
  width: 34px;
  height: 28px;
  border-radius: 5px;
  background: var(--kgc-red);
}

.kgc-official-card__lock::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 19px;
  width: 19px;
  height: 18px;
  transform: translateX(-50%);
  border: 5px solid var(--kgc-red);
  border-bottom: 0;
  border-radius: 12px 12px 0 0;
}

.kgc-official-card__portal-title {
  margin: 2px 0 10px;
  color: var(--kgc-red);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 800;
  line-height: 1.4;
}

.kgc-official-card__description {
  margin: 0 0 14px;
  color: var(--kgc-muted);
  font-size: 0.82rem;
  line-height: 1.7;
}

/* ---------------------------------------------------------
   Smartphone
   --------------------------------------------------------- */

@media (max-width: 767px) {
  .kgc-instagram {
    margin-block: 1rem;
    padding: 52px 0 58px;
  }

  .kgc-instagram__heading,
  .kgc-instagram__panel,
  .kgc-instagram__notice,
  .kgc-instagram__noscript {
    width: calc(100% - 32px);
  }

  .kgc-instagram__title {
    font-size: clamp(1.6rem, 7vw, 2rem);
  }

  .kgc-instagram__lead {
    font-size: 0.88rem;
    line-height: 1.9;
  }

  .kgc-instagram__tabs {
    justify-content: flex-start;
    flex-wrap: nowrap;
    gap: 8px;
    width: 100%;
    margin-bottom: 20px;
    padding: 3px 16px 10px;
    overflow-x: auto;
    scroll-padding-left: 16px;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
  }

  .kgc-instagram__tabs::-webkit-scrollbar {
    display: none;
  }

  .kgc-instagram__tab {
    flex: 0 0 auto;
    min-height: 44px;
    padding: 9px 17px;
    font-size: 0.88rem;
    white-space: nowrap;
  }

  .kgc-instagram__panel {
    padding: 14px 10px 18px;
    border-radius: 14px;
  }

  .kgc-instagram__account {
    align-items: flex-start;
    margin-right: 4px;
    margin-left: 4px;
  }

  .kgc-instagram__external {
    padding-top: 2px;
    font-size: 0.82rem;
  }

  .kgc-instagram__embed,
  .kgc-instagram__loading {
    min-height: 320px;
  }

  .kgc-instagram__notice {
    font-size: 0.72rem;
    line-height: 1.75;
  }

  .kgc-official-links {
    margin-block: 1rem;
    padding: 52px 12px 70px;
  }

  .kgc-official-links__grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .kgc-official-card {
    width: 100%;
    min-height: 0;
    padding: 22px 16px;
    border-radius: 13px;
  }

  .kgc-official-card--instagram {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .kgc-official-card__qr-wrap {
    width: 150px;
    padding: 7px;
    border-radius: 10px;
  }

  .kgc-official-card__label {
    font-size: 0.95rem;
  }

  .kgc-official-card__account {
    margin: 5px 0 12px;
    font-size: 0.78rem;
  }

  .kgc-official-card__link {
    justify-content: center;
    font-size: 0.85rem;
  }

  .kgc-official-card--portal {
    grid-column: auto;
    flex-direction: row;
    justify-content: flex-start;
    gap: 18px;
    padding: 20px;
    text-align: left;
  }

  .kgc-official-card__portal-icon {
    width: 66px;
    height: 66px;
  }

  .kgc-official-card__lock {
    width: 28px;
    height: 23px;
  }

  .kgc-official-card__lock::before {
    bottom: 16px;
    width: 16px;
    height: 15px;
    border-width: 4px;
  }

  .kgc-official-card__portal-title {
    font-size: 1.22rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .kgc-instagram__tab {
    transition: none;
  }

  .kgc-instagram__loading::before {
    animation-duration: 1.8s;
  }
}

/* =========================================================
   Instagram 学科タブ：横スワイプ案内
   ========================================================= */

/* PCでは案内を表示しない */
.kgc-instagram__swipe-hint {
  display: none;
}

@media (max-width: 767px) {

  /* スマートフォンのみ案内を表示 */
  .kgc-instagram__swipe-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5em;
    margin: 0 16px 10px;
    color: var(--kgc-muted);
    font-size: 0.76rem;
    line-height: 1.5;
    text-align: center;
  }

  /* 左右の矢印 */
  .kgc-instagram__swipe-hint span {
    color: var(--kgc-red);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1;
  }

  /* 横スワイプ時にボタン単位で止まりやすくする */
  .kgc-instagram__tabs {
    scroll-snap-type: x proximity;
    scroll-padding-inline: 16px;
  }

  .kgc-instagram__tab {
    scroll-snap-align: start;
  }
}