/* ===========================
   レイアウト・タイポ
   =========================== */

.pano-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px;
}

.pano-container h1 {
  font-size: 1.6rem;
  margin: 10px 0 4px;
}

.pano-lead {
  margin: 0 0 12px;
  line-height: 1.6;
  opacity: .9;
}

/* ===========================
   タブ
   =========================== */

.pano-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.pano-tab {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  cursor: pointer;
}

.pano-tab.is-active {
  background: #ffffff;
  color: #333;
}

/* ===========================
   パノラマ本体
   =========================== */

.panorama-wrap {
  border-radius: 10px;
  overflow: hidden;
background: linear-gradient(
  90deg,
  #ff6a00 0%,
  #ff9500 25%,
  #ffc400 50%,
  #ff9500 75%,
  #ff6a00 100%
);

  padding: 8px 0;
}

.panorama {
  display: flex;
  flex-wrap: nowrap;
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;

  /* PC用 細いスクロールバー */
  scrollbar-width: thin;
  scrollbar-color: rgba(39, 143, 212, 0.678) rgba(255, 255, 255, 0);
}

/* Chrome / Edge / Safari */
.panorama::-webkit-scrollbar {
  height: 6px;
}
.panorama::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0);
}
.panorama::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.25);
  border-radius: 4px;
}
.panorama:hover::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.35);
}

/* 画像 */
.panorama img {
  display: block;
  height: auto;
  width: auto;
  max-height: 70vh;
  object-fit: cover;
  border-radius: 12px;
}

/* 画像間の隙間（時間軸の区切り） */
.panorama img + img {
  margin-left: 10px;
}

/* スマホ：スクロールバー非表示 */
@media (max-width: 768px) {
  .panorama {
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .panorama::-webkit-scrollbar {
    display: none;
  }
}

/* スマホ横向き：高さ制限を少し緩める */
@media screen and (max-width: 900px) and (orientation: landscape) {
  .panorama img {
    max-height: 80vh;
    object-fit: contain;
  }

  .panorama {
    align-items: center;
  }
}

/* ===========================
   ガイドボタン＋BGMボタン
   =========================== */

.pano-goto {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ストーリーボードボタン */
.pano-goto__btn {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  background: #ffcc66;
  color: #333;
  text-decoration: none;
  font-size: 14px;
  border: 2px solid rgba(255, 240, 190, 0.95);
  box-shadow:
    0 6px 18px rgba(0, 0, 0, 0.35),
    0 0 12px rgba(255, 220, 120, 0.9);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    opacity 0.2s ease;
}

/* 最後まで行くまで無効 */
.pano-disabled {
  opacity: 0;
  pointer-events: none;
}

.pano-goto__btn:not(.pano-disabled):hover {
  transform: translateY(-3px);
  box-shadow:
    0 10px 24px rgba(0, 0, 0, 0.45),
    0 0 20px rgba(255, 230, 150, 1);
}

/* BGMボタン */
.pano-bgm-btn {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  transition:
    background 0.15s ease,
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

/* ON状態 */
.pano-bgm-btn.is-on {
  background: rgba(60, 160, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.9);
}

.pano-bgm-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.6);
}

@media (max-width: 768px) {
  .pano-goto__btn {
    font-size: 14px;
    padding: 10px 24px;
  }
  .pano-bgm-btn {
    font-size: 13px;
    padding: 8px 18px;
  }
}

/* BGMボタン周り */
.pano-bgm {
  max-width: 960px;
  margin: 0.5rem auto 0;
  text-align: right;
}

.pano-bgm-btn {
  font-size: 0.85rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}

.pano-bgm-btn:hover {
  transform: translateY(-1px);
}

.pano-bgm-btn.is-on {
  background: #ff9800;
  color: #000;
}