/* 3Dキャンパスマップ（/map3d/）。画面いっぱいの3D表示の上に、左上の操作パネルを重ねる。
   配色と書体は教室検索ナビ（/navi/）と同じ「構内の案内サイン」: 紙と墨と罫線で組み、朱は主な操作と道順だけ、
   紺は選んでいる状態とフォーカス。数字（階・教室番号）は細身の数字書体 */

:root {
  --ink: #14181F;
  --muted: #4B5563;
  --faint: #8A919C;
  --paper: #F6F6F2;
  --paper-deep: #ECECE5;
  --panel: var(--paper);
  --line: #DBDCD4;
  --line-strong: #C3C5BB;
  --shadow: 0 1px 2px rgba(20, 24, 31, 0.14), 0 4px 14px rgba(20, 24, 31, 0.1);
  --photo: #3DA2DB;
  --accent: #E8501E;
  --accent-dark: #B93C14;
  --accent-light: #FCEEE7;
  --transit-blue: #1B3A6B;
  --go: #1E7145;
  --plate: rgba(20, 24, 31, 0.86);
  --font: 'BIZ UDPGothic', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', sans-serif;
  --font-num: 'Barlow Semi Condensed', 'BIZ UDPGothic', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; overflow: hidden; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: #DCE7F2;
  -webkit-font-smoothing: antialiased;
}
button, select, input { font-family: inherit; }
[hidden] { display: none !important; }   /* display を指定した要素でも、hidden なら出さない */
:focus-visible { outline: 2px solid var(--transit-blue); outline-offset: 2px; }

#scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.panel {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  left: 12px;
  width: min(340px, calc(100vw - 24px));
  max-height: calc(100vh - 24px);
  overflow-y: auto;
  background: var(--panel);
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 2;
}

/* 見出しは墨の帯（ナビ画面の見出しと同じ） */
.panel-head {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px 10px 14px;
  background: var(--ink);
  color: #fff;
}
.brand { font-family: var(--font-num); font-size: 18px; font-weight: 600; color: #fff; text-decoration: none; letter-spacing: 0.02em; }
.brand-sub { font-size: 13px; color: rgba(255, 255, 255, 0.72); }
.panel-toggle {
  margin-left: auto;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: none;
  border-radius: 6px;
  height: 30px;
  padding: 0 10px;
  font-size: 12px;
  color: #fff;
  cursor: pointer;
}
.panel-toggle:hover { background: rgba(255, 255, 255, 0.1); }

.panel.collapsed .panel-body { display: none; }

.panel-body { padding: 14px; display: flex; flex-direction: column; gap: 14px; }

.route-form { display: flex; flex-direction: column; gap: 8px; }
.route-form > label:not(.check) { display: grid; grid-template-columns: 64px 1fr; align-items: center; font-size: 12px; font-weight: 700; color: var(--muted); }
/* 出発は白丸、目的地は朱の丸（地図の道順の両端と同じ印） */
.route-form .pin { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.route-form .pin::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: #fff; border: 2px solid var(--ink); }
.route-form .pin.to::before { background: var(--accent); border-color: var(--accent); }
.route-form select {
  font-size: 15px;
  height: 42px;
  padding: 0 8px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  min-width: 0;
}
.route-form select:focus { outline: none; border-color: var(--transit-blue); box-shadow: 0 0 0 1px var(--transit-blue); }
.route-actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 2px; }

.btn-primary {
  flex: 1;
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  height: 44px;
  padding: 0 14px;
  border-radius: 8px;
  cursor: pointer;
}
.btn-primary:hover { background: var(--accent-dark); }

.check { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); cursor: pointer; white-space: nowrap; }
.check input { width: 17px; height: 17px; accent-color: var(--accent); }

.route-summary {
  font-size: 13px;
  line-height: 1.6;
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  padding: 8px 10px;
  border-radius: 6px;
}

.controls { display: flex; flex-direction: column; gap: 10px; padding-top: 12px; border-top: 1px solid var(--line); }
.control-row { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.control-row:has(.chips) { align-items: flex-start; }
.control-row:has(.chips) .control-label { padding-top: 7px; }
.control-label { flex: 0 0 auto; width: 5.5em; color: var(--muted); font-size: 12px; font-weight: 700; }
.control-row input[type="range"] { flex: 1; accent-color: var(--transit-blue); }
.toggles { gap: 14px; padding-left: calc(5.5em + 8px); }

.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip {
  border: 1px solid var(--line-strong);
  background: #fff;
  border-radius: 6px;
  height: 30px;
  padding: 0 9px;
  font-size: 13px;
  cursor: pointer;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.chip:hover { border-color: var(--ink); }
.chip .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 5px; vertical-align: 0; }
.chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }

.legend { list-style: none; display: grid; grid-template-columns: repeat(3, auto); gap: 5px 10px; font-size: 12px; color: var(--muted); padding-top: 12px; border-top: 1px solid var(--line); }
.legend li { display: flex; align-items: center; gap: 6px; }
.swatch { width: 16px; height: 5px; border-radius: 3px; display: inline-block; }
.swatch.corridor { background: #F2F5FA; box-shadow: 0 0 0 1px #AEB8C8 inset; }
.swatch.stairs { background: #2FB36D; }
.swatch.elevator { background: #2F7FE0; }
.swatch.escalator { background: #9B51E0; }
.swatch.outdoor { background: #9AA4B2; }
.swatch.route { background: var(--accent); }

.hint { font-size: 12px; color: var(--muted); line-height: 1.7; }

.status {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: max(16px, env(safe-area-inset-bottom));
  width: max-content;
  max-width: calc(100vw - 32px);
  background: var(--plate);
  color: #fff;
  font-size: 13px;
  padding: 8px 14px;
  border-radius: 8px;
  border-left: 4px solid var(--transit-blue);
  z-index: 2;
  pointer-events: none;
  transition: opacity 0.4s;
}
.status.error { border-left-color: var(--accent); background: rgba(122, 42, 13, 0.92); }
.status.hidden { opacity: 0; }

@media (max-width: 600px) {
  .legend { grid-template-columns: repeat(2, auto); }
}

/* ---------------------------------------------------------------- 写真モード */
.swatch.photo { background: var(--photo); }

/* 地図の上の「写真で見る」ボタン（パネルを開かなくても押せるよう、右上に常に出す） */
.map-btn {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  right: 12px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 42px;
  padding: 0 14px 0 12px;
  background: var(--ink);
  color: #fff;
  border: none;
  border-radius: 8px;
  box-shadow: var(--shadow);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.map-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linejoin: round; }
.map-btn:hover { background: #2A303B; }
.map-btn.active { background: var(--paper); color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink), var(--shadow); }

/* 写真を見る画面（画面いっぱい）。開いている間、3Dの地図は左下の小さな地図になる */
.pv {
  position: fixed;
  inset: 0;
  z-index: 10;
  background: #0B0D11;
  color: #fff;
  overflow: hidden;
}
.pv[hidden] { display: none; }
body.photo-open .panel,
body.photo-open .map-btn,
body.photo-open .status { display: none; }
body.photo-open #scene {
  inset: auto;
  left: 16px;
  bottom: max(16px, env(safe-area-inset-bottom));
  width: 300px;
  height: 210px;
  z-index: 11;
  border-radius: 8px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  cursor: pointer;
}
.pv-mini-label {
  position: fixed;
  left: 24px;
  bottom: calc(max(16px, env(safe-area-inset-bottom)) + 182px);
  z-index: 12;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.55);
  font-size: 11px;
  pointer-events: none;
}

/* 上の帯: 戻るボタン・場所の名前・左右の教室 */
.pv-top {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: max(12px, env(safe-area-inset-top)) 16px 28px;
  background: linear-gradient(rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0));
  pointer-events: none;
}
.pv-top > * { pointer-events: auto; }
.pv-back {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  height: 42px;
  padding: 0 12px 0 6px;
  border: none;
  border-radius: 8px;
  background: var(--plate);
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.pv-back:hover { background: rgba(20, 24, 31, 0.97); }
.pv-back svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
/* いまの場所の案内板: 墨の板に建物・階を大きく、その下に左右の教室 */
.pv-place {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  padding: 6px 12px 7px 10px;
  border-radius: 8px;
  border-left: 4px solid var(--accent);
  background: var(--plate);
}
.pv-place strong { font-family: var(--font-num), var(--font); font-size: 20px; font-weight: 600; line-height: 1.2; letter-spacing: 0.01em; }
.pv-place span { font-size: 13px; color: rgba(255, 255, 255, 0.78); font-variant-numeric: tabular-nums; }
.pv-place span:empty { display: none; }

.pv-stage {
  position: absolute;
  inset: 0;
  touch-action: none;   /* ドラッグで移るため、ブラウザのスクロールに取られないようにする */
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden;
}
.pv-stage.can-go { cursor: pointer; }
.pv-stage.moving { cursor: grabbing; }
/* 写真1枚分の層。移るときは2枚を重ねて、map3d.js が transform と opacity で動かす */
.pv-layers { position: absolute; inset: 0; }
.pv-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  transform-origin: 50% 55%;   /* 前へ寄るときは、通路の奥（写真の真ん中より少し下）に向かって寄る */
  will-change: transform, opacity;
  backface-visibility: hidden;
}
.pv-layer img { position: absolute; inset: 0; width: 100%; height: 100%; display: block; -webkit-user-drag: none; pointer-events: none; }
.pv-img { object-fit: contain; }
/* 写真の外の余白は、同じ写真をぼかして埋める（黒い帯にしない） */
.pv-bg { object-fit: cover; filter: blur(28px) brightness(0.55) saturate(1.1); transform: scale(1.15); }
.pv-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 72px;
  text-align: center;
  color: #C9CFD9;
  font-size: 14px;
  line-height: 1.8;
  background: #0B0D11;
}

/* 次の写真の読み込みに時間がかかっているときの印 */
.pv-spinner {
  position: absolute;
  left: calc(50% - 22px);
  top: calc(50% - 22px);
  width: 44px;
  height: 44px;
  border: 3px solid rgba(255, 255, 255, 0.25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: pv-spin 0.8s linear infinite;
  pointer-events: none;
}
.pv-spinner[hidden] { display: none; }
@keyframes pv-spin { to { transform: rotate(360deg); } }

/* 使い方の説明（開いたときに少しだけ出す） */
.pv-hint {
  position: absolute;
  left: 50%;
  top: 38%;
  transform: translateX(-50%);
  max-width: calc(100% - 32px);
  padding: 8px 14px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.6);
  font-size: 13px;
  line-height: 1.6;
  text-align: center;
  pointer-events: none;
  animation: pv-fade 0.3s ease-out;
}
.pv-hint[hidden] { display: none; }
@keyframes pv-fade { from { opacity: 0; } }

/* 床に寝かせた矢印（ストリートビューのように、行き先の実際の向きに置く）。
   .pv-ground を奥へ倒し、その上で矢印を --a（いま向いている方から右回りの角度）だけ回して、円の外側に置く */
.pv-ground {
  --r: 104px;
  position: absolute;
  left: calc((var(--pv-left) + 100% - var(--pv-right)) / 2);
  bottom: calc(var(--dock-h, 58px) + 100px);   /* 下のボタン（.pv-dock）の高さぶん上げる。--dock-h は map3d.js が入れる */
  width: 0;
  height: 0;
  transform: perspective(700px) rotateX(52deg);
  transform-style: preserve-3d;
  transition: opacity 0.15s;
}
.pv-stage.moving .pv-ground { opacity: 0; pointer-events: none; transition: none; }
.pv-ring {
  position: absolute;
  left: calc(-1 * var(--r));
  top: calc(-1 * var(--r));
  width: calc(2 * var(--r));
  height: calc(2 * var(--r));
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  background: radial-gradient(rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0) 70%);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.15), inset 0 0 0 1px rgba(0, 0, 0, 0.15);
  pointer-events: none;
}
.photo-arrow {
  --a: 0deg;
  position: absolute;
  left: -40px;
  top: -40px;
  width: 80px;
  height: 80px;
  padding: 0;
  border: none;
  background: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(var(--a)) translateY(calc(-1 * var(--r)));
  transition: transform 0.25s ease-out;
}
.photo-arrow svg {
  width: 66px;
  height: 66px;
  fill: currentColor;
  stroke: rgba(0, 0, 0, 0.35);
  stroke-width: 1.5;
  stroke-linejoin: round;
  filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.6));
  transition: transform 0.12s, color 0.12s;
}
.photo-arrow:disabled { display: none; }
.photo-arrow:not(.has-photo) { opacity: 0.55; }
.photo-arrow.ahead svg { color: #fff; filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.55)) drop-shadow(0 2px 3px rgba(0, 0, 0, 0.6)); }   /* いま向いている道 */
.photo-arrow:hover svg,
.photo-arrow.hot svg { transform: scale(1.18); color: #FFE27A; }

/* 画面の下の、振り返る・階の移動（床の矢印のすぐ下）。小さな地図（左下）と行き先の写真（右）を避けた
   残りの幅の真ん中に置き、床の矢印も同じ真ん中にそろえる（--pv-left・--pv-right） */
.pv { --pv-left: 332px; --pv-right: 16px; }
.pv-dock {
  position: absolute;
  left: var(--pv-left);
  right: var(--pv-right);
  bottom: max(16px, env(safe-area-inset-bottom));
  display: flex;
  flex-wrap: wrap-reverse;   /* 入り切らないときは、上の段に送る */
  justify-content: center;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}
.pv-dock > * { pointer-events: auto; }
.pv-floors { display: contents; }
.pv-group {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 46px;
  padding: 4px;
  border-radius: 10px;
  background: var(--plate);
  pointer-events: auto;
}
.pv-group-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 6px 0 8px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}
.pv-group-label::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.pv-group.stairs .pv-group-label::before { background: #2FB36D; }
.pv-group.escalator .pv-group-label::before { background: #9B51E0; }
.pv-group.elevator .pv-group-label::before { background: #2F7FE0; }
.pv-floor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-width: 38px;
  height: 38px;
  padding: 0 10px 0 7px;
  border: none;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-family: var(--font-num), var(--font);
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
}
.pv-floor:hover:not(:disabled) { background: rgba(255, 255, 255, 0.26); }
/* エレベーターの階は、エレベーターの中の丸い階ボタンのように。いまの階は点灯している */
.pv-group.elevator .pv-floor {
  width: 38px;
  padding: 0;
  border-radius: 50%;
  background: none;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.55);
}
.pv-group.elevator .pv-floor:hover:not(:disabled) { background: rgba(255, 255, 255, 0.16); box-shadow: inset 0 0 0 2px #fff; }
.pv-group.elevator .pv-floor.current { color: #FFB37F; box-shadow: inset 0 0 0 2px #FFB37F, 0 0 10px rgba(255, 140, 70, 0.55); }
.pv-floor:disabled { cursor: default; }
.pv-floor:disabled:not(.current) { opacity: 0.4; }
.pv-floor svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.pv-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 46px;
  padding: 0 12px;
  border: none;
  border-radius: 10px;
  background: var(--plate);
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.pv-btn:hover:not(:disabled) { background: rgba(20, 24, 31, 0.97); }
.pv-btn:disabled { display: none; }
.pv-btn svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* 行き先の写真（パソコンだけ。右側に縦に並べる） */
.pv-thumbs { display: none; }
@media (min-width: 900px) and (hover: hover) and (pointer: fine) {
  .pv { --pv-right: 200px; }
  .pv-thumbs {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 168px;
  }
  .pv-thumb {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    padding: 0;
    border: none;
    border-radius: 6px;
    overflow: hidden;
    background: #232833;
    cursor: pointer;
    outline: 2px solid rgba(255, 255, 255, 0.25);
    outline-offset: -2px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  }
  .pv-thumb:hover:not(:disabled) { outline-color: #fff; }
  .pv-thumb:disabled { display: none; }
  .pv-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .pv-thumb img:not([src]) { visibility: hidden; }
  .pv-thumb-label {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 14px 8px 5px;
    background: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.7));
    font-size: 12px;
    text-align: left;
  }
  .pv-thumb-empty { position: absolute; inset: 0; display: none; align-items: center; justify-content: center; color: #8A93A3; font-size: 12px; }
  .pv-thumb.no-photo .pv-thumb-empty { display: flex; }
}

@media (max-width: 600px) {
  /* スマートフォン: パネル（上の横いっぱい）と重ならないよう、ボタンはパネルの下に出す */
  .map-btn { top: calc(max(10px, env(safe-area-inset-top)) + 52px); right: 10px; z-index: 1; height: 36px; font-size: 13px; }

  .pv-top { padding: max(10px, env(safe-area-inset-top)) 10px 24px; gap: 10px; }
  .pv-place strong { font-size: 15px; }
  .pv-place span { font-size: 12px; }
  .pv { --pv-left: 0px; --pv-right: 0px; }
  .pv-dock {
    gap: 6px;
    padding: 18px 8px max(8px, env(safe-area-inset-bottom));
    bottom: 0;
    background: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.7));
  }
  .pv-group-label { font-size: 11px; padding: 0 4px 0 6px; }
  .pv-floor { min-width: 34px; padding: 0 6px; }
  .pv-ground { --r: 76px; bottom: calc(var(--dock-h, 68px) + 64px); }
  .photo-arrow { left: -32px; top: -32px; width: 64px; height: 64px; }
  .photo-arrow svg { width: 52px; height: 52px; }
  body.photo-open #scene {
    left: auto;
    right: 10px;
    bottom: auto;
    top: calc(max(10px, env(safe-area-inset-top)) + 56px);
    width: 128px;
    height: 96px;
    border-radius: 6px;
  }
  .pv-mini-label { left: auto; right: 14px; bottom: auto; top: calc(max(10px, env(safe-area-inset-top)) + 136px); font-size: 10px; }
}