/* =========================================================================
   car3d.css — 3Dの ずかん（まわして 見る）
   ========================================================================= */

.d3 {
  --d3-ink: #1e2b45;
  --d3-sub: #58678a;
  --d3-line: #d8e0ed;
  --d3-lit: #ff8a00;
  --d3-t: #2b9c68;
  font-family: 'BIZ UDPGothic', 'Hiragino Maru Gothic ProN', 'Yu Gothic Medium', Meiryo, sans-serif;
  color: var(--d3-ink);
}

/* ---------- ステージ ---------- */
.d3-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;
  min-height: 260px;
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(#dbe6f2, #eef3f9);
  box-shadow: 0 10px 26px rgba(30, 43, 69, .10);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.d3-stage canvas { display: block; }

/* さいしょの あんない */
.d3-hint {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  background: rgba(30, 43, 69, .78);
  color: #fff;
  font-size: 15px;
  padding: 8px 16px;
  border-radius: 999px;
  pointer-events: none;
  transition: opacity .5s;
  white-space: nowrap;
}

.d3-hint[hidden] { opacity: 0; }

/* ---------- ①②③の しるし（回すと いっしょに 動く）---------- */
.d3-marker {
  position: absolute;
  width: 38px;
  height: 38px;
  margin: -19px 0 0 -19px;
  border-radius: 50%;
  border: 3px solid #fff;
  background: #2a4a80;
  color: #fff;
  font: 700 18px/32px 'Kosugi Maru', sans-serif;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0, 0, 0, .35);
  transition: background .2s, transform .2s;
  z-index: 3;
}

.d3-marker:hover { transform: scale(1.12); }
.d3-marker.is-on { background: var(--d3-lit); transform: scale(1.16); }
.d3-marker.is-seen::after {
  content: '✓';
  position: absolute;
  right: -4px;
  top: -6px;
  width: 18px;
  height: 18px;
  background: var(--d3-t);
  border: 2px solid #fff;
  border-radius: 50%;
  font: 700 11px/15px sans-serif;
}
.d3-marker[hidden] { display: none; }

/* ---------- ふきだし ---------- */
.d3-callout {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  max-width: 420px;
  background: rgba(255, 255, 255, .96);
  border: 2px solid var(--d3-line);
  border-radius: 16px;
  padding: 12px 44px 12px 16px;
  box-shadow: 0 8px 22px rgba(30, 43, 69, .18);
  z-index: 4;
  animation: d3pop .18s ease-out;
}

@keyframes d3pop { from { opacity: 0; transform: translateY(8px); } }

.d3-callout__name {
  font: 700 19px/1.4 'Kosugi Maru', sans-serif;
  color: var(--d3-lit);
  margin-bottom: 2px;
}
.d3-callout__text { font-size: 16px; line-height: 1.7; }
.d3-callout__tsukuri {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--d3-line);
  font-size: 16px;
  line-height: 1.7;
  color: var(--d3-t);
}
.d3-callout__close {
  position: absolute;
  right: 8px;
  top: 8px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: #eef2f8;
  font-size: 17px;
  cursor: pointer;
}
.d3-callout[hidden] { display: none; }

/* ---------- そうさボタン ---------- */
.d3-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.d3-btn {
  flex: 0 0 auto;
  min-height: 46px;
  padding: 0 16px;
  border: 2px solid var(--d3-line);
  border-radius: 14px;
  background: #fff;
  color: var(--d3-ink);
  font: 700 16px/1 'BIZ UDPGothic', sans-serif;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}

.d3-btn:hover { background: #f3f7fc; }
.d3-btn.is-on { background: #2a4a80; border-color: #2a4a80; color: #fff; }
.d3-btn--anim { border-color: #b8dcc6; background: #f2fbf5; color: #1c6b45; }
.d3-btn--anim:hover { background: #e6f6ec; }
.d3-btn--anim.is-on { background: #2b9c68; border-color: #2b9c68; color: #fff; }

.d3-views {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.d3-views .d3-btn { min-height: 42px; padding: 0 13px; font-size: 15px; }

/* ---------- つくりの 文 ---------- */
.d3-list { margin-top: 14px; display: grid; gap: 10px; }

.d3-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  width: 100%;
  text-align: left;
  padding: 13px 15px;
  border: 2px solid var(--d3-line);
  border-radius: 16px;
  background: #fff;
  font: 400 17px/1.75 'BIZ UDPGothic', sans-serif;
  color: var(--d3-ink);
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.d3-item:hover { background: #f6faf7; }
.d3-item.is-on { border-color: var(--d3-lit); background: #fff6ec; }

.d3-item__no {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--d3-t);
  color: #fff;
  font: 700 15px/30px 'Kosugi Maru', sans-serif;
  text-align: center;
}
.d3-item.is-on .d3-item__no { background: var(--d3-lit); }

.d3-note {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--d3-sub);
}

.d3-meters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 10px;
  padding: 8px 14px;
  border-radius: 12px;
  background: #eef2f8;
  font-size: 15px;
  color: var(--d3-sub);
}
.d3-meters span { white-space: nowrap; }
.d3-meters b { color: var(--d3-ink); }

/* よこむきの タブレットでは 左右に ならべる */
@media (min-width: 900px) {
  .d3-split { display: grid; grid-template-columns: 1.35fr 1fr; gap: 20px; align-items: start; }
  .d3-stage { aspect-ratio: 4 / 3; }
  .d3-callout { max-width: 58%; right: auto; }
}

/* =========================================================================
   ずかん本体に 組みこんだ ときの スタイル
   （index.css / kansatsu.css の 上に 足す）
   ========================================================================= */

/* ---------- 詳細ページ ---------- */
.art-stage.is-3d { background: linear-gradient(180deg, #dbe6f2 0%, #eef3f9 100%); }
/* 3Dの ときは イラスト／写真を かくす（SVGは hidden 属性が きかないので ここで）*/
.art-stage.is-3d>svg,
.art-stage.is-3d>img { display: none !important; }
.art-stage.is-3d canvas { border-radius: inherit; }

.art-tools {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.art-tools .btn { flex: 1 1 auto; justify-content: center; }

.btn--3d {
  background: #eaf1fb;
  border-color: #b8cbe8;
  color: #24406f;
}
.btn--3d[aria-pressed="true"] {
  background: #2a4a80;
  border-color: #2a4a80;
  color: #fff;
}

.art-anim {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.art-anim:empty { display: none; }

.btn--anim3d {
  flex: 0 1 auto;
  background: #f2fbf5;
  border-color: #b8dcc6;
  color: #1c6b45;
  font-size: 16px;
}
.btn--anim3d.is-on { background: #2b9c68; border-color: #2b9c68; color: #fff; }

/* ---------- ものすごい かんさつ（3D版） ---------- */
.kz--3d .kz__stage { cursor: grab; }
.kz--3d .kz__stage canvas { position: absolute; inset: 0; }

/* 見る むき ＋ ▶うごかす */
.kz__turn {
  position: absolute;
  left: 12px;
  top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 4;
  max-width: 44%;
}

.kz-tbtn {
  min-height: 40px;
  padding: 0 14px;
  border: 2px solid rgba(255, 255, 255, .28);
  border-radius: 12px;
  background: rgba(16, 26, 44, .72);
  color: #eef3f9;
  font: 700 15px/1 'BIZ UDPGothic', sans-serif;
  cursor: pointer;
  backdrop-filter: blur(4px);
  text-align: left;
}
.kz-tbtn:hover { background: rgba(40, 60, 96, .85); }
.kz-tbtn--anim { border-color: rgba(96, 214, 156, .55); color: #b8f0d2; }
.kz-tbtn--anim.is-on { background: #2b9c68; border-color: #2b9c68; color: #fff; }

/* 絵の ない チップ（3Dにしか ない ぶぶん） */
.kz-chip--noimg .kz-chip__name { padding-left: 4px; }

@media (max-width: 700px) {
  .kz__turn { flex-direction: row; flex-wrap: wrap; max-width: calc(100% - 24px); }
  .kz-tbtn { min-height: 36px; padding: 0 10px; font-size: 13px; }
}