* {
  box-sizing: border-box;
}

:root {
  --panel: #ffffff;
  --ink: #342b24;
  --muted: #786d63;
  --accent: #f05a47;
  --accent-dark: #c93e2d;
  --yellow: #ffd84d;
  --shelf-dark: #9c6137;
  --success: #2e9b59;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, #ffffff 0, transparent 30%),
    linear-gradient(135deg, #fff9e8, #ffe9b4);
  display: grid;
  place-items: center;
  padding: 20px;
}

button {
  font: inherit;
}

.hidden {
  display: none !important;
}

/* 全画面 */
.full-screen {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
}

/* タップ待ち */
.tap-screen {
  background:
    radial-gradient(circle at center, #fffdf5, #ffe7a3);
}

.screen-button {
  border: 0;
  color: inherit;
  background: transparent;
}

.tap-screen-content {
  display: grid;
  gap: 18px;
  justify-items: center;
  cursor: pointer;
  animation: tapFloat 1.2s infinite alternate ease-in-out;
}

.tap-icon {
  font-size: 70px;
}

.tap-message {
  font-size: clamp(20px, 5vw, 32px);
  font-weight: 900;
  letter-spacing: 0.06em;
}

@keyframes tapFloat {
  from { transform: translateY(0); }
  to { transform: translateY(-12px); }
}

/* タイトル */
.title-screen {
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 15%, rgba(255,255,255,.9), transparent 30%),
    linear-gradient(145deg, #fff7d6, #ffc960);
}

.title-screen::before {
  content: "半額";
  position: absolute;
  top: -55px;
  right: -40px;
  display: grid;
  place-items: center;
  width: 190px;
  height: 190px;
  border: 8px solid #bf2d1d;
  border-radius: 50%;
  color: #bf2d1d;
  background: #ffe247;
  font-size: 48px;
  font-weight: 1000;
  transform: rotate(15deg);
  opacity: .3;
}

.title-screen-content {
  position: relative;
  z-index: 1;
  width: min(520px, 100%);
  text-align: center;
}

.title-sub {
  margin: 0 0 10px;
  color: #d84832;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .16em;
}

.title-logo {
  margin: 0;
  font-size: clamp(62px, 14vw, 115px);
  font-weight: 1000;
  line-height: .85;
  text-shadow:
    4px 4px 0 #fff,
    8px 8px 0 #f05a47;
}

.title-catch {
  margin: 28px 0 18px;
  font-size: clamp(17px, 4vw, 24px);
  font-weight: 900;
}

.title-best-score {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  width: fit-content;
  margin: 0 auto 26px;
  padding: 10px 20px;
  border: 3px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 5px 0 var(--ink);
}

.title-best-score span {
  font-size: 14px;
  font-weight: 800;
}

.title-best-score strong {
  color: var(--accent);
  font-size: 36px;
}

.title-buttons {
  display: grid;
  gap: 14px;
  width: min(320px, 100%);
  margin: 0 auto;
}

.title-button,
.primary-button {
  padding: 14px 22px;
  border: 3px solid var(--ink);
  border-radius: 15px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 6px 0 var(--ink);
  transition: transform .08s ease, box-shadow .08s ease;
}

.title-button {
  width: 100%;
}

.title-button.primary,
.primary-button {
  color: #fff;
  background: var(--accent);
}

.title-button.secondary {
  color: var(--ink);
  background: #fff;
}

.title-button:active,
.primary-button:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 var(--ink);
}

/* ゲーム本体 */
.game-shell {
  width: min(920px, 100%);
}

.game-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 16px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .12em;
}

.game-header h1 {
  margin: 0;
  font-size: clamp(32px, 7vw, 64px);
  line-height: 1;
}

.score-board {
  display: flex;
  gap: 10px;
}

.score-board > div {
  min-width: 100px;
  padding: 10px 14px;
  border-radius: 16px;
  background: var(--panel);
  box-shadow: 0 8px 24px rgba(93,62,31,.12);
  text-align: center;
}

.score-board span {
  display: block;
  font-size: 12px;
  color: var(--muted);
}

.score-board strong {
  font-size: 30px;
}

.target-panel {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 84px;
  margin-bottom: 12px;
  padding: 14px 18px;
  border: 3px solid var(--ink);
  border-radius: 18px;
  background: var(--yellow);
  box-shadow: 0 7px 0 var(--ink);
}

.target-panel p {
  margin: 0;
  font-weight: 900;
  white-space: nowrap;
}

.target-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.target-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  font-weight: 800;
}

.target-chip-image {
  width: 34px;
  height: 34px;
  object-fit: contain;
  pointer-events: none;
}

.target-chip.done {
  opacity: .35;
  text-decoration: line-through;
}

.game-area {
  position: relative;
  overflow: hidden;
  min-height: 560px;
  padding: 16px;
  border: 5px solid var(--ink);
  border-radius: 24px;
  background: #f7f1e8;
  box-shadow: 0 12px 0 var(--ink);
}

/* 3段の商品棚画像を背景にし、その上に3×3の商品を重ねる */
.shelf {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(3, minmax(0, 1fr));
  gap: 0 12px;
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: 520px;
  padding: 6% 4% 3%;
  background-image: url("assets/images/shelf.png");
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
}

/* 商品ボタン自体は透明。棚の上に商品画像だけ見える */
.product {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 0;
  padding: 8px;
  border: 0;
  border-radius: 16px;
  background: transparent;
  box-shadow: none;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
  transition: transform .08s ease, filter .15s ease, opacity .3s ease;
}

.product:active {
  transform: translateY(4px) scale(.98);
}

.product-image {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 230px;
  max-height: 135px;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 4px 3px rgba(55, 35, 20, .16));
  pointer-events: none;
}


.product-name {
  position: absolute;
  left: 50%;
  bottom: 3px;
  transform: translateX(-50%);
  max-width: 92%;
  padding: 2px 7px;
  border-radius: 999px;
  color: #3a3029;
  background: rgba(255,255,255,.82);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.25;
  white-space: nowrap;
  pointer-events: none;
}

.discount-sticker {
  position: absolute;
  top: 45%;
  left: 50%;
  display: none;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 3px solid #b3291c;
  border-radius: 50%;
  color: #b3291c;
  background: var(--yellow);
  font-size: 15px;
  font-weight: 1000;
  transform: translate(-50%, -50%) rotate(10deg);
  box-shadow: 0 3px 0 rgba(84,35,25,.25);
  z-index: 4;
}

.product.stamped .discount-sticker {
  display: grid;
  animation: stampPop .18s ease-out;
}

.product.taken {
  opacity: .28;
  transform: scale(.92);
}

.clerk-hand,
.customer-hand {
  position: absolute;
  z-index: 7;
  left: 0;
  top: 0;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.clerk-hand {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 60px;
  transition-property: left, top;
  transition-timing-function: cubic-bezier(.2,.8,.2,1);
}

.sticker-roll {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border: 3px solid #b3291c;
  border-radius: 50%;
  color: #b3291c;
  background: var(--yellow);
  font-size: 14px;
  font-weight: 1000;
  transform: rotate(-12deg);
}

.hand-emoji {
  transform: rotate(105deg);
}

.clerk-hand.stamping {
  animation: handStamp .2s ease;
}

.customer-hand {
  font-size: 76px;
  transition: left .32s ease-out, transform .18s ease;
}

.customer-hand-emoji {
  display: block;
  transform: rotate(-90deg);
}

.customer-hand.holding-product {
  transform: translate(-50%, -50%) scale(.9);
}

.product.customer-taken {
  opacity: 0;
  transform: translateX(130px) scale(.6) rotate(12deg);
  transition: transform .38s ease, opacity .28s ease;
}

.message {
  position: absolute;
  z-index: 8;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  padding: 12px 22px;
  border: 4px solid var(--ink);
  border-radius: 16px;
  background: #fff;
  font-size: clamp(24px, 5vw, 48px);
  font-weight: 1000;
  box-shadow: 0 8px 0 var(--ink);
  pointer-events: none;
}

.message.success { color: var(--success); }
.message.warning { color: var(--accent); }

.controls {
  margin-top: 24px;
  text-align: center;
}

#statusText {
  min-height: 1.5em;
  color: var(--muted);
}

/* モーダル */
.modal {
  position: fixed;
  z-index: 120;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(34,25,18,.72);
}

.modal-card {
  width: min(460px, 100%);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  padding: 30px;
  border: 4px solid var(--ink);
  border-radius: 22px;
  background: #fff;
  text-align: center;
  box-shadow: 0 10px 0 var(--ink);
}

.modal-card h2 {
  margin: 4px 0 14px;
  font-size: 40px;
}

.modal-label {
  margin: 0;
  color: var(--accent);
  font-weight: 1000;
  letter-spacing: .15em;
}

.howto-list {
  padding-left: 25px;
  text-align: left;
  line-height: 1.8;
}

.howto-warning {
  display: grid;
  gap: 8px;
  margin: 20px 0;
}

.howto-warning p {
  margin: 0 0 4px;
  font-weight: 900;
}

.howto-warning span {
  padding: 9px 12px;
  border-radius: 10px;
  background: #fff0ed;
  font-weight: 700;
}

.result-score {
  font-size: 20px;
}

.result-score strong {
  color: var(--accent);
  font-size: 44px;
}

@keyframes stampPop {
  from { transform: translate(-50%, -50%) rotate(10deg) scale(1.8); opacity: 0; }
  to { transform: translate(-50%, -50%) rotate(10deg) scale(1); opacity: 1; }
}

@keyframes handStamp {
  50% {
    transform: translate(-50%, -50%) translateY(20px) scale(.92);
  }
}

@media (max-width: 640px) {
  body { padding: 10px; }

  .game-header {
    align-items: center;
  }

  .score-board > div {
    min-width: 76px;
    padding: 8px;
  }

  .score-board strong {
    font-size: 24px;
  }

  .target-panel {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .game-area {
    min-height: 500px;
    padding: 8px;
  }

  .shelf {
    min-height: 470px;
    gap: 0 5px;
    padding: 7% 3% 3%;
  }

  .product {
    padding: 5px 2px;
  }

  .product-image {
    max-height: 118px;
  }

  .product-name {
    font-size: 10px;
  }

  .discount-sticker {
    width: 48px;
    height: 48px;
    font-size: 12px;
  }

  .clerk-hand {
    font-size: 48px;
  }

  .sticker-roll {
    width: 46px;
    height: 46px;
    font-size: 11px;
  }

  .modal-card {
    padding: 24px 18px;
  }
}


/* ゲームオーバー画面のボタン */
.game-over-buttons {
  display: grid;
  gap: 12px;
  width: min(280px, 100%);
  margin: 18px auto 0;
}

.game-over-buttons .primary-button,
.game-over-buttons .secondary-button {
  width: 100%;
  margin: 0;
}

.secondary-button {
  padding: 14px 22px;
  border: 3px solid var(--ink);
  border-radius: 15px;
  color: var(--ink);
  background: #ffffff;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 6px 0 var(--ink);
  transition:
    transform 0.08s ease,
    box-shadow 0.08s ease;
}

.secondary-button:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 var(--ink);
}

/* =========================================================
   半額ハンター：クレジット機能
   style.css の末尾に追加
========================================================= */

.credit-card {
  width: min(92vw, 560px);
  max-height: 85vh;
  overflow-y: auto;
}

.credit-content {
  margin: 24px 0 28px;
  text-align: left;
}

.credit-section + .credit-section {
  margin-top: 30px;
}

.credit-section h3 {
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(0, 0, 0, 0.12);
  font-size: 1.15rem;
}

.credit-item {
  margin-bottom: 20px;
  line-height: 1.7;
}

.credit-item:last-child {
  margin-bottom: 0;
}

.credit-item p {
  margin: 2px 0;
}

.credit-name {
  font-weight: 700;
}