/* =========================================================
 * 街歩きアプリ styles（design.md のデザイントークンに準拠）
 * 統合先（カシマアカデミーFC）トーンは design.md 未規定部分のみ参照
 * ========================================================= */

:root {
  --color-primary: #102f54;
  --color-primary-deep: #0a2342;
  --color-action: #0b5c96;
  --color-accent: #cf3639;
  --color-ticket: #d9b867;
  --color-surface: #ffffff;
  --color-surface-warm: #f7f1e5;
  --color-text: #111827;
  --color-muted: #5b6572;
  --color-border: #d8dde3;
  --color-focus: #f3c847;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;

  --radius-control: 8px;
  --radius-panel: 16px;
  --radius-sheet: 22px;
  --shadow-panel: 0 18px 42px rgba(23, 35, 48, .28);

  --header-h: 64px;
  --bottomnav-h: 58px;

  --street-image: url("res/walk-street.png");
  --staff-image: url("res/walk-staff.png");
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
html.reduce-motion { scroll-behavior: auto; }

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-surface);
  font-family: "Inter", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

button { font-family: inherit; }

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -48px;
  z-index: 300;
  background: var(--color-primary-deep);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-control);
  transition: top .15s ease;
}
.skip-link:focus { top: var(--space-2); }

/* ---------------- 共通ボタン ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-control);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: #f2f6fa; }
.btn:disabled {
  opacity: .45;
  cursor: not-allowed;
}
.btn--primary {
  background: var(--color-action);
  border-color: var(--color-action);
  color: #fff;
}
.btn--primary:hover { background: var(--color-primary); }
.btn--ghost { background: rgba(255, 255, 255, .92); }

/* ---------------- ヘッダー ---------------- */
.app-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  height: var(--header-h);
  padding: 0 var(--space-4);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}
.app-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}
.app-header__emblem {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  flex: none;
}
.app-header__titles { min-width: 0; }
.app-header__group {
  margin: 0;
  font-size: 11px;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.app-header__name {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}
.badge-beta {
  display: inline-block;
  margin-left: var(--space-2);
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--color-surface-warm);
  border: 1px solid var(--color-ticket);
  color: #8a6d1f;
  font-size: 11px;
  font-weight: 700;
  vertical-align: 2px;
}
.app-header__controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: none;
}

/* 動きを少なく トグル */
.motion-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  min-height: 44px;
}
.motion-toggle__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
}
.motion-toggle input {
  position: absolute;
  width: 1px; height: 1px;
  clip-path: inset(50%);
  overflow: hidden;
}
.motion-toggle__track {
  width: 44px;
  height: 24px;
  border-radius: 999px;
  background: #c3ccd6;
  position: relative;
  transition: background .15s ease;
  flex: none;
}
.motion-toggle__thumb {
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.3);
  transition: transform .15s ease;
}
.motion-toggle input:checked + .motion-toggle__track { background: var(--color-action); }
.motion-toggle input:checked + .motion-toggle__track .motion-toggle__thumb { transform: translateX(20px); }
.motion-toggle input:focus-visible + .motion-toggle__track {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* =========================================================
 * 街歩き区間
 * ======================================================= */
.walk-section {
  position: relative;
  /* 高さはJSが 100vh + (店舗数-1) × segmentVh で設定する */
  height: 848vh;
}

.walk-stage {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  background: var(--color-primary-deep);

  /* 歩行エンジンが毎フレーム更新するカスタムプロパティ（初期値） */
  --camera-scale: 1;
  --camera-x: 0%;
  --camera-y: 0%;
  --camera-bob: 0%;
  --sky-scale: 1;
  --bld-scale: 1;
  --road-scale: 1;
  --road-y: 0%;
  --fg-scale: 1;
  --lines-opacity: .5;
  --lines-shift: 0px;
  --cue-opacity: 1;
  --endcue-opacity: 0;
}

.scene { position: absolute; inset: 0; }

.scene-layer {
  position: absolute;
  inset: -4%;
  background: center / cover no-repeat var(--street-image);
  will-change: transform;
  transform-origin: 50% 44%;
}
.scene-layer--sky {
  clip-path: inset(0 0 52% 0);
  transform: translate3d(calc(var(--camera-x) * .3), calc(var(--camera-bob) * .3), 0) scale(var(--sky-scale));
}
.scene-layer--buildings {
  transform: translate3d(var(--camera-x), calc(var(--camera-y) + var(--camera-bob)), 0) scale(var(--bld-scale));
}
.scene-layer--road {
  /* 路面テクスチャ内で継ぐ（建物・空を含めない）ことで境界を目立たせない */
  clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%);
  /* クリップ上端を原点にして、拡大時に境界線が動きにくくする */
  transform-origin: 50% 60%;
  transform: translate3d(var(--camera-x), calc(var(--road-y) + var(--camera-bob)), 0) scale(var(--road-scale));
}

/* レイヤー境界を馴染ませる路面のヘイズ */
.scene-haze {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 18%;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    rgba(247, 241, 229, 0) 0,
    rgba(247, 241, 229, .30) 46%,
    rgba(247, 241, 229, .30) 58%,
    rgba(247, 241, 229, 0) 100%
  );
}
.scene-layer--fg {
  transform: translate3d(var(--camera-x), calc(var(--camera-y) + var(--camera-bob)), 0) scale(var(--fg-scale));
}
.scene-layer--fg-left  { clip-path: polygon(0 0, 14% 0, 10% 100%, 0 100%); }
.scene-layer--fg-right { clip-path: polygon(86% 0, 100% 0, 100% 100%, 90% 100%); }

/* 道路の遠近線（歩行の送り表現） */
.road-lines {
  position: absolute;
  left: 30%;
  right: 30%;
  top: 52%;
  bottom: 0;
  opacity: var(--lines-opacity);
  background:
    linear-gradient(to right, transparent 49.2%, rgba(255,255,255,.55) 49.2%, rgba(255,255,255,.55) 50.8%, transparent 50.8%);
  background-size: 100% 72px;
  transform: translateY(var(--lines-shift));
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, rgba(0,0,0,.8) 40%, rgba(0,0,0,.25) 100%);
  mask-image: linear-gradient(to bottom, transparent 0, rgba(0,0,0,.8) 40%, rgba(0,0,0,.25) 100%);
  will-change: transform;
  pointer-events: none;
  mix-blend-mode: overlay;
}

.scene-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(10, 35, 66, .38) 0, transparent 130px),
    linear-gradient(to top, rgba(10, 35, 66, .30) 0, transparent 150px);
}

/* ---------------- マーカー ---------------- */
.markers-layer {
  position: absolute;
  inset: 0;
  z-index: 20;
}
.shop-marker {
  position: absolute;
  left: 0;
  top: 0;
  width: 46px;
  height: 46px;
  padding: 0;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  background: rgba(255, 255, 255, .95);
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  will-change: transform, opacity;
  box-shadow: 0 4px 12px rgba(10, 35, 66, .35);
}
.shop-marker[hidden] { display: none; }
.shop-marker.is-current {
  border-color: var(--color-accent);
  box-shadow:
    0 0 0 3px #fff,
    0 0 0 6px var(--color-accent),
    0 6px 16px rgba(10, 35, 66, .4);
}
.shop-marker.is-passed {
  border-color: var(--color-muted);
  color: var(--color-muted);
}
@keyframes marker-arrive {
  0%   { box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--color-accent), 0 0 0 6px rgba(207, 54, 57, .55); }
  100% { box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--color-accent), 0 0 0 26px rgba(207, 54, 57, 0); }
}
.shop-marker.is-arriving { animation: marker-arrive .26s ease-out 1; }
html.reduce-motion .shop-marker.is-arriving { animation: none; }

/* ---------------- ステージUI ---------------- */
.walk-ui {
  position: absolute;
  inset: 0;
  z-index: 30;
  pointer-events: none;
}
.walk-ui .btn { pointer-events: auto; }

.scroll-cue {
  position: absolute;
  top: calc(var(--header-h) + 26px);
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  background: rgba(10, 35, 66, .72);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  opacity: var(--cue-opacity);
}
.scroll-cue__icon {
  width: 16px;
  height: 24px;
  border: 2px solid #fff;
  border-radius: 9px;
  position: relative;
  flex: none;
}
.scroll-cue__wheel {
  position: absolute;
  left: 50%;
  top: 4px;
  width: 3px;
  height: 6px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: #fff;
  animation: cue-wheel 1.6s ease-in-out infinite;
}
@keyframes cue-wheel {
  0%, 100% { transform: translateY(0); opacity: 1; }
  55%      { transform: translateY(7px); opacity: .2; }
}
html.reduce-motion .scroll-cue__wheel { animation: none; }

.walk-endcue {
  position: absolute;
  bottom: 118px;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  max-width: min(90vw, 480px);
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  background: rgba(10, 35, 66, .78);
  color: #fff;
  font-size: 13px;
  text-align: center;
  opacity: var(--endcue-opacity);
}

.walk-hud {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-panel);
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow-panel);
  pointer-events: auto;
  max-width: calc(100vw - 16px);
}
.btn--hud { flex: none; white-space: nowrap; }
.walk-hud__center { min-width: 150px; text-align: center; }
.walk-hud__count {
  margin: 0;
  font-size: 12px;
  color: var(--color-muted);
}
.walk-hud__name {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 42vw;
}
.walk-hud__track {
  margin-top: 4px;
  height: 4px;
  border-radius: 2px;
  background: var(--color-border);
  overflow: hidden;
}
.walk-hud__fill {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--color-action);
}

.stage-sample-note {
  position: absolute;
  right: var(--space-2);
  bottom: 2px;
  margin: 0;
  font-size: 10px;
  color: rgba(255, 255, 255, .85);
  text-shadow: 0 1px 2px rgba(10, 35, 66, .8);
}

/* =========================================================
 * 店舗詳細（PC: 右パネル / SP: ボトムシート）
 * ======================================================= */
.shop-detail {
  position: fixed;
  z-index: 140;
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  display: flex;
  flex-direction: column;
}
.shop-detail[hidden] { display: none; }

.shop-detail__handle { display: none; }

.shop-detail__header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "num title close"
    "num cat   close";
  column-gap: var(--space-3);
  align-items: center;
  padding: var(--space-4) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.shop-detail__number {
  grid-area: num;
  margin: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.shop-detail__title {
  grid-area: title;
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
  overflow-wrap: anywhere;
}
.shop-detail__category {
  grid-area: cat;
  margin: 0;
  font-size: 12px;
  color: var(--color-muted);
}
.btn-close {
  grid-area: close;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  font-size: 20px;
  line-height: 1;
  color: var(--color-primary);
  cursor: pointer;
}
.btn-close:hover { background: #f2f6fa; }

.shop-detail__body {
  padding: var(--space-4);
  overflow-y: auto;
  overscroll-behavior: contain;
  flex: 1;
}

.staff-intro {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}
.staff-portrait {
  flex: none;
  width: 96px;
  height: 120px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-warm);
  background-image: var(--staff-image);
  background-repeat: no-repeat;
  background-size: 250% 100%;
  background-position: 8% 0;
}
.staff-portrait--male { background-position: 92% 0; }

.speech-bubble {
  position: relative;
  margin: 0;
  padding: var(--space-3) var(--space-4);
  background: #f2f6fa;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  font-size: 14px;
  white-space: pre-line;
}
.speech-bubble::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 26px;
  width: 14px;
  height: 14px;
  background: #f2f6fa;
  border-left: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  transform: rotate(45deg);
}

.benefit-ticket {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border: 2px dashed var(--color-ticket);
  border-radius: var(--radius-panel);
  background: var(--color-surface-warm);
}
.benefit-ticket__label {
  margin: 0 0 var(--space-1);
  font-size: 12px;
  font-weight: 700;
  color: #8a6d1f;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.tag-sample {
  padding: 1px 8px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--color-ticket);
  font-size: 11px;
  color: #8a6d1f;
}
.benefit-ticket__main {
  margin: 0;
  font-size: 14px;
  color: var(--color-text);
}
.benefit-ticket__main strong {
  display: inline-block;
  margin-left: var(--space-2);
  font-size: 26px;
  color: var(--color-accent);
  font-weight: 800;
}
.benefit-ticket__conditions {
  margin: var(--space-2) 0 0;
  padding-left: 1.2em;
  font-size: 12px;
  color: var(--color-muted);
}

.sponsor-note {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: #fafbfc;
}
.sponsor-note__label {
  display: inline-block;
  margin: 0 0 var(--space-1);
  padding: 1px 8px;
  border-radius: 4px;
  background: #eceff3;
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
}
.sponsor-note__name {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
}
.sponsor-note__disclosure {
  margin: var(--space-1) 0 0;
  font-size: 12px;
  color: var(--color-muted);
}

.shop-meta {
  margin: var(--space-4) 0 0;
}
.shop-meta__row {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-1) 0;
  font-size: 13px;
}
.shop-meta__row dt {
  flex: none;
  width: 64px;
  color: var(--color-muted);
}
.shop-meta__row dd { margin: 0; font-weight: 600; }

.shop-detail__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
}
.shop-detail__pos {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

/* PC配置：右パネル（街路を完全に隠さない） */
@media (min-width: 768px) {
  .shop-detail {
    top: calc(var(--header-h) + 16px);
    right: 16px;
    width: min(380px, 44vw);
    max-height: calc(100vh - var(--header-h) - 32px);
    border-radius: var(--radius-panel);
  }
}

/* =========================================================
 * 店舗一覧・検索
 * ======================================================= */
.directory {
  position: relative;
  z-index: 40;
  background: var(--color-surface);
  border-top: 4px solid var(--color-primary);
  /* 固定ヘッダーの下に見出しが隠れないようにする */
  scroll-margin-top: var(--header-h);
}
.directory__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-4) 64px;
}
.directory__title {
  margin: 0;
  font-size: 24px;
  color: var(--color-primary);
}
.directory__lead {
  margin: var(--space-2) 0 var(--space-5);
  color: var(--color-muted);
  font-size: 14px;
}

.directory__filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  background: #fafbfc;
}
.filter-group {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}
.filter-group legend,
.filter-group label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
  padding: 0;
}
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.chip {
  min-height: 40px;
  padding: var(--space-1) var(--space-4);
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.chip[aria-pressed="true"] {
  background: var(--color-action);
  border-color: var(--color-action);
  color: #fff;
}
.filter-group--keyword { flex: 1 1 260px; }
.keyword-box {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.keyword-box input {
  flex: 1 1 160px;
  min-height: 44px;
  min-width: 0;
  padding: 0 var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  font-size: 14px;
  font-family: inherit;
}

.directory__count {
  margin: var(--space-4) 0 var(--space-3);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
}

.shop-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-3);
}
.shop-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  padding: var(--space-4);
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.shop-card__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.shop-card__number {
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.shop-card__name {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
  color: var(--color-primary);
  overflow-wrap: anywhere;
}
.shop-card__category {
  margin: 0;
  font-size: 12px;
  color: var(--color-muted);
}
.shop-card__benefit {
  margin: 0;
  font-size: 13px;
}
.shop-card__benefit strong { color: var(--color-accent); font-size: 17px; }
.shop-card__tags {
  margin: 0;
  font-size: 11px;
  color: var(--color-muted);
}
.shop-card__actions {
  margin-top: auto;
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.shop-card__actions .btn { flex: 1 1 auto; font-size: 13px; }

.directory__empty {
  margin: var(--space-5) 0;
  padding: var(--space-5);
  text-align: center;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-panel);
  color: var(--color-muted);
}

.sponsor-slot { margin-top: var(--space-5); }
.sponsor-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  background: #fafbfc;
  padding: var(--space-4);
  max-width: 480px;
}
.sponsor-card__name {
  margin: var(--space-1) 0 0;
  font-size: 14px;
  font-weight: 700;
}
.sponsor-card__disclosure {
  margin: var(--space-1) 0 0;
  font-size: 12px;
  color: var(--color-muted);
}

.directory__note {
  margin: var(--space-5) 0 0;
  font-size: 12px;
  color: var(--color-muted);
}

/* ---------------- フッター ---------------- */
.app-footer {
  background: var(--color-primary-deep);
  color: rgba(255, 255, 255, .85);
  font-size: 12px;
  padding: var(--space-5) var(--space-4) calc(var(--space-5) + var(--bottomnav-h));
  text-align: center;
}
.app-footer p { margin: 0; }

/* ---------------- ボトムナビ（SPのみ） ---------------- */
.bottom-nav {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 130;
  height: var(--bottomnav-h);
  background: var(--color-primary-deep);
  border-top: 1px solid rgba(255,255,255,.15);
}
.bottom-nav__item {
  flex: 1 1 0;
  min-width: 0;
  border: 0;
  background: transparent;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  padding: var(--space-1);
}
.bottom-nav__item[aria-pressed="true"] {
  color: var(--color-focus);
}

/* ---------------- 使い方ダイアログ ---------------- */
.help-dialog {
  border: 0;
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-panel);
  padding: var(--space-5);
  width: min(92vw, 480px);
}
.help-dialog::backdrop { background: rgba(10, 35, 66, .5); }
.help-dialog h2 { margin: 0 0 var(--space-3); color: var(--color-primary); font-size: 18px; }
.help-list {
  margin: 0;
  padding-left: 1.3em;
  font-size: 14px;
}
.help-list li { margin-bottom: var(--space-2); }
.help-note {
  font-size: 12px;
  color: var(--color-muted);
}

/* =========================================================
 * レスポンシブ
 * ======================================================= */
@media (max-width: 767px) {
  .app-header { padding: 0 var(--space-3); }
  .app-header__directory-link,
  .motion-toggle { display: none; } /* SPはボトムナビに集約 */

  .bottom-nav { display: flex; }

  .walk-hud {
    bottom: calc(var(--bottomnav-h) + 12px);
    gap: var(--space-2);
    padding: var(--space-2);
  }
  .btn--hud { font-size: 12px; padding: var(--space-1) var(--space-2); }
  .walk-hud__center { min-width: 104px; }
  .walk-hud__name { font-size: 14px; max-width: 34vw; }

  .walk-endcue { bottom: calc(var(--bottomnav-h) + 78px); }
  .stage-sample-note { bottom: calc(var(--bottomnav-h) + 2px); }

  /* ボトムシート表示（街路上部は見えたまま） */
  .shop-detail {
    left: 0;
    right: 0;
    bottom: var(--bottomnav-h);
    max-height: 62vh;
    border-radius: var(--radius-sheet) var(--radius-sheet) 0 0;
  }
  .shop-detail__handle {
    display: block;
    width: 44px;
    height: 4px;
    border-radius: 2px;
    background: var(--color-border);
    margin: var(--space-2) auto 0;
  }
  .staff-portrait { width: 80px; height: 100px; }
}

@media (max-width: 359px) {
  .app-header__name { font-size: 14px; }
  .badge-beta { display: none; }
  .btn--hud { font-size: 11px; }
  .walk-hud__center { min-width: 84px; }
  .shop-detail__footer { flex-wrap: wrap; }
  .keyword-box .btn { flex: 1 1 100%; }
}

/* =========================================================
 * reduced motion（OS設定・画面内トグル共通）
 * ======================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scene-layer { transition: none; }
  .scroll-cue__wheel { animation: none; }
  .shop-marker.is-arriving { animation: none; }
}
html.reduce-motion .road-lines { opacity: 0; }
html.reduce-motion *,
html.reduce-motion *::before,
html.reduce-motion *::after {
  transition-duration: .01ms !important;
  animation-duration: .01ms !important;
  /* infiniteアニメーションが毎フレーム再始動しないよう反復も止める */
  animation-iteration-count: 1 !important;
}