/* ===== かにかにぐらし ===== */
:root {
  --kk-bg: #fff5e4;
  --kk-bg-deep: #ffe3c4;
  --kk-accent: #ff6b6b;
  --kk-accent-dark: #e85d5d;
  --kk-sub: #4ecdc4;
  --kk-text: #3d3d3d;
  --kk-text-light: #7a7a7a;
  --kk-cell: #fff;
  --kk-cell-border: #f0d9b5;
  --kk-shadow: 0 2px 8px rgba(0,0,0,0.12);
}

html, body {
  background: var(--kk-bg);
  color: var(--kk-text);
  font-family: 'Zen Maru Gothic', 'Hachi Maru Pop', sans-serif;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
}

/* ===== 画面共通 ===== */
.screen {
  position: fixed;
  inset: 0;
  display: none;
  flex-direction: column;
}
.screen.active { display: flex; }

/* ===== タイトル ===== */
#title-screen {
  background: radial-gradient(ellipse at top, #fff5e4 0%, #ffd7a8 100%);
  align-items: center;
  justify-content: center;
}
.title-inner {
  text-align: center;
  padding: 20px;
}
#title-screen h1 {
  font-size: clamp(2rem, 9vw, 3rem);
  color: var(--kk-accent);
  text-shadow: 3px 3px 0 #fff, 6px 6px 0 rgba(255,107,107,0.2);
  margin-bottom: 0.2em;
  font-family: 'Hachi Maru Pop', sans-serif;
}
.title-char {
  font-size: clamp(4rem, 18vw, 7rem);
  margin: 0.2em 0;
  animation: bounce 1.5s ease-in-out infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0) rotate(-5deg); }
  50% { transform: translateY(-12px) rotate(5deg); }
}
#title-screen .subtitle {
  color: var(--kk-text);
  font-size: clamp(0.9rem, 3.5vw, 1.1rem);
  margin-bottom: 1.5em;
  line-height: 1.6;
}
.big-btn {
  font-family: inherit;
  font-size: clamp(1rem, 4vw, 1.2rem);
  font-weight: 700;
  padding: 0.8em 2em;
  border: none;
  background: var(--kk-accent);
  color: #fff;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--kk-accent-dark);
  transition: transform 0.1s, box-shadow 0.1s;
}
.big-btn:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 var(--kk-accent-dark);
}
.small-btn {
  display: block;
  margin: 12px auto 0;
  padding: 6px 16px;
  background: transparent;
  border: 1px solid var(--kk-text-light);
  color: var(--kk-text-light);
  font-family: inherit;
  font-size: 0.8rem;
  border-radius: 20px;
  cursor: pointer;
}

/* ===== ゲーム画面レイアウト ===== */
#game-screen {
  background: linear-gradient(180deg, #fff5e4 0%, #ffe3c4 100%);
}

/* --- 上部ステータス --- */
.topbar {
  flex-shrink: 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 8px 12px;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--kk-cell-border);
}
.stat {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--kk-text);
  position: relative;
}
.stat-ico { font-size: 1.1rem; }
.xp-bar {
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(0,0,0,0.1);
  border-radius: 2px;
  overflow: hidden;
}
.xp-fill {
  height: 100%;
  background: linear-gradient(90deg, #ffd700, #ffaa00);
  width: 0%;
  transition: width 0.3s;
}

/* --- 注文ストリップ --- */
.orders-strip {
  flex-shrink: 0;
  display: flex;
  gap: 6px;
  padding: 6px 10px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  background: rgba(255,255,255,0.4);
  min-height: 68px;
  touch-action: pan-x;
}
.orders-strip::-webkit-scrollbar { display: none; }
.order-card {
  flex-shrink: 0;
  width: 72px;
  background: #fff;
  border: 2px solid var(--kk-cell-border);
  border-radius: 10px;
  padding: 4px;
  text-align: center;
  box-shadow: var(--kk-shadow);
  position: relative;
}
.order-emoji { font-size: 1.4rem; line-height: 1; }
.order-name { font-size: 0.55rem; color: var(--kk-text-light); margin: 2px 0; }
.order-reward {
  font-size: 0.6rem;
  color: var(--kk-accent);
  font-weight: 700;
}
.order-card.completed {
  background: #fff3d0;
  border-color: #f5c84b;
  animation: orderReady 1.5s ease-in-out infinite;
}
@keyframes orderReady {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245, 200, 75, 0.4); }
  50%      { box-shadow: 0 0 0 6px rgba(245, 200, 75, 0); }
}
.order-claim {
  font-size: 0.55rem;
  padding: 2px 6px;
  background: var(--kk-accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 700;
  margin-top: 2px;
}
.order-claim:active {
  transform: scale(0.92);
}

.cell.recycle-target {
  background: #ffd9d9;
  border: 2px solid var(--kk-accent);
}

/* --- メインエリア --- */
.main-area {
  flex: 1 1 0;
  position: relative;
  overflow: hidden;
  min-height: 0;
}
.view {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4px;
  overflow: hidden;
}
.view.active { display: flex; }

/* --- マージボード --- */
.board-view {
  justify-content: flex-start !important;
}
.board {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(7, 1fr);
  gap: 3px;
  width: min(100%, 360px);
  height: 100%;
  max-height: min(calc((100vw - 8px) * 7 / 6), calc(100% - 20px));
  padding: 4px;
  background: rgba(255,255,255,0.5);
  border-radius: 12px;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.08);
}
.cell {
  background: var(--kk-cell);
  border: 1px dashed var(--kk-cell-border);
  border-radius: 6px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}
.cell.drag-over {
  background: #fff9d9;
  border: 2px solid var(--kk-accent);
}
.cell.merge-target {
  background: #d7f5d1;
  border: 2px solid #2fa82f;
}

.item {
  position: absolute;
  inset: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
  font-size: clamp(1rem, 3.5vw, 1.4rem);
  cursor: grab;
  transition: transform 0.15s;
  overflow: hidden;
  touch-action: none;
}
.item.dragging {
  cursor: grabbing;
  transform: scale(1.15);
  z-index: 100;
  box-shadow: 0 6px 14px rgba(0,0,0,0.3);
}
.item.generator {
  background: linear-gradient(135deg, #ffd7a8, #ff9a56);
  border: 2px solid #e87e1a;
  cursor: pointer;
  animation: genIdle 2s ease-in-out infinite;
}
@keyframes genIdle {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232, 126, 26, 0.3); }
  50%      { box-shadow: 0 0 0 5px rgba(232, 126, 26, 0); }
}
.item.spawning {
  animation: spawn 0.35s ease-out;
  will-change: transform;
}
@keyframes spawn {
  0% { transform: scale(0) rotate(-180deg); }
  60% { transform: scale(1.2) rotate(10deg); }
  100% { transform: scale(1) rotate(0); }
}
.item.merged-result {
  animation: mergedPop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform, filter;
}
@keyframes mergedPop {
  0%   { transform: scale(0.3); filter: brightness(2.5); }
  50%  { transform: scale(1.25); filter: brightness(1.5); }
  100% { transform: scale(1); filter: brightness(1); }
}
.item.recycled {
  animation: recyclePoof 0.35s ease-out forwards;
}
@keyframes recyclePoof {
  0%   { transform: scale(1); opacity: 1; }
  50%  { transform: scale(0.5) rotate(180deg); opacity: 0.5; }
  100% { transform: scale(0) rotate(360deg); opacity: 0; }
}
.item.generator.gen-tap {
  animation: genTapPulse 0.25s ease-out;
}
@keyframes genTapPulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(0.85); }
  100% { transform: scale(1); }
}
.item-tier {
  position: absolute;
  top: 1px;
  right: 2px;
  font-size: 0.5rem;
  color: #fff;
  background: rgba(0,0,0,0.5);
  border-radius: 4px;
  padding: 0 3px;
  line-height: 1.2;
}

/* --- お部屋 --- */
.room-wrap {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px;
}
.room-scene {
  position: relative;
  flex: 1;
  min-height: 0;
  background: linear-gradient(180deg, #ffe8c8 0%, #ffd0a0 55%, #c9a577 55.5%, #a8855a 100%);
  border: 3px solid #8b6b3f;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: inset 0 4px 12px rgba(0,0,0,0.15);
  transition: background 1.5s, border-color 1.5s, box-shadow 1.5s;
}

/* 汚部屋段階1: ちょっと黄ばんでくる */
.room-scene.filth-1 {
  background: linear-gradient(180deg, #f5e0b0 0%, #e8c48a 55%, #b89060 55.5%, #967548 100%);
}
/* 汚部屋段階2: 茶色く汚れてくる */
.room-scene.filth-2 {
  background: linear-gradient(180deg, #d4bc8a 0%, #c0a060 55%, #8a6a3a 55.5%, #6e5530 100%);
  border-color: #5a4020;
  box-shadow: inset 0 4px 20px rgba(0,0,0,0.3);
}
/* 汚部屋段階3: 暗く緑がかる */
.room-scene.filth-3 {
  background: linear-gradient(180deg, #8a7a50 0%, #6a5a30 55%, #4a3a20 55.5%, #3a2a15 100%);
  border-color: #2a1a0a;
  box-shadow: inset 0 4px 30px rgba(0,0,0,0.5);
}
/* 汚部屋段階4: ほぼ闇 */
.room-scene.filth-4 {
  background: linear-gradient(180deg, #3a2a20 0%, #2a1a10 55%, #1a0a00 55.5%, #0a0500 100%);
  border-color: #000;
  box-shadow: inset 0 4px 40px rgba(0,0,0,0.8);
}

/* 暗闘オーバーレイ */
.filth-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 8;
  transition: background 1.5s;
}

.room-floor {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 45%;
  background:
    repeating-linear-gradient(90deg, transparent 0, transparent 24px, rgba(0,0,0,0.08) 24px, rgba(0,0,0,0.08) 25px),
    linear-gradient(180deg, #c9a577, #a8855a);
  transition: filter 1.5s;
}
.filth-2 .room-floor {
  filter: brightness(0.7) saturate(0.5);
}
.filth-3 .room-floor {
  filter: brightness(0.4) saturate(0.3);
}
.filth-4 .room-floor {
  filter: brightness(0.2) saturate(0.1);
}

.room-window {
  position: absolute;
  top: 8%;
  right: 10%;
  font-size: clamp(2rem, 8vw, 3rem);
  filter: drop-shadow(0 2px 2px rgba(0,0,0,0.2));
  transition: opacity 0.5s, filter 0.5s;
}
.filth-3 .room-window,
.filth-4 .room-window {
  filter: drop-shadow(0 2px 4px rgba(255,0,0,0.3)) brightness(0.6);
}

.room-kani {
  position: absolute;
  bottom: 8%;
  left: 8%;
  font-size: clamp(2rem, 10vw, 3.2rem);
  animation: kaniWalk 4s ease-in-out infinite;
  z-index: 5;
  transition: filter 1s;
}
.filth-3 .room-kani {
  animation: kaniShake 2s ease-in-out infinite;
}
.filth-4 .room-kani {
  animation: kaniShake 1s ease-in-out infinite;
  filter: brightness(0.6);
}
@keyframes kaniWalk {
  0%, 100% { transform: translateX(0) rotate(-5deg); }
  50% { transform: translateX(30px) rotate(5deg); }
}
@keyframes kaniShake {
  0%, 100% { transform: translateX(0) rotate(-2deg); }
  25% { transform: translateX(-4px) rotate(-5deg); }
  75% { transform: translateX(4px) rotate(3deg); }
}
.room-items {
  position: absolute;
  inset: 0;
}
.room-item {
  position: absolute;
  font-size: clamp(1.6rem, 6vw, 2.4rem);
  filter: drop-shadow(0 3px 4px rgba(0,0,0,0.25));
  cursor: pointer;
}
.room-shop {
  flex-shrink: 0;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 2px 8px;
  scrollbar-width: thin;
  min-height: 72px;
  touch-action: pan-x;
}
.shop-item {
  flex-shrink: 0;
  width: 64px;
  background: #fff;
  border: 2px solid var(--kk-cell-border);
  border-radius: 8px;
  padding: 4px;
  text-align: center;
  cursor: pointer;
  font-family: inherit;
  box-shadow: var(--kk-shadow);
}
.shop-item.owned {
  background: #d7f5d1;
  border-color: #2fa82f;
  opacity: 0.7;
}
.shop-item:disabled { opacity: 0.5; cursor: not-allowed; }
.shop-emoji { font-size: 1.5rem; }
.shop-name { font-size: 0.55rem; color: var(--kk-text-light); }
.shop-cost { font-size: 0.65rem; color: var(--kk-accent); font-weight: 700; }

/* --- タブバー --- */
.tabbar {
  flex-shrink: 0;
  display: flex;
  background: #fff;
  border-top: 2px solid var(--kk-cell-border);
  padding-bottom: env(safe-area-inset-bottom);
}
.tab {
  flex: 1;
  padding: 8px 4px;
  background: transparent;
  border: none;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--kk-text-light);
  transition: color 0.2s;
}
.tab.active {
  color: var(--kk-accent);
  background: #fff5e4;
}
.tab-ico { font-size: 1.3rem; }
.tab-label { font-size: 0.65rem; font-weight: 700; }

/* ===== モーダル ===== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
  padding: 16px;
}
.modal.hidden { display: none; }
.modal-inner {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  max-width: 360px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  text-align: center;
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
}
.modal-inner h2 {
  color: var(--kk-accent);
  margin-bottom: 12px;
  font-size: 1.2rem;
}
.modal-inner p {
  font-size: 0.9rem;
  color: var(--kk-text);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* 図鑑 */
#dex-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}
.dex-cell {
  background: #f5f5f5;
  border: 1px solid var(--kk-cell-border);
  border-radius: 6px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  position: relative;
}
.dex-cell.discovered { background: #fffaf0; }
.dex-cell.locked { color: transparent; background: #e0e0e0; }
.dex-cell.locked::before { content: '?'; color: #999; font-weight: 700; }

/* ===== スターパーティクル ===== */
.star-particle {
  position: fixed;
  font-size: 1.2rem;
  pointer-events: none;
  z-index: 9200;
  animation: starFly 0.7s ease-in forwards;
}
@keyframes starFly {
  0%   { opacity: 1; transform: translate(0, 0) scale(1); }
  100% { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(0.3); }
}

/* ===== ボード情報バー ===== */
.board-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: min(100%, 360px);
  padding: 2px 8px;
  font-size: 0.65rem;
  color: var(--kk-text-light);
}
.board-usage {
  display: flex;
  align-items: center;
  gap: 4px;
}
.board-usage-bar {
  width: 60px;
  height: 4px;
  background: rgba(0,0,0,0.08);
  border-radius: 2px;
  overflow: hidden;
}
.board-usage-fill {
  height: 100%;
  background: var(--kk-sub);
  transition: width 0.3s, background 0.3s;
}
.board-usage-fill.warning { background: #f5a623; }
.board-usage-fill.danger { background: var(--kk-accent); }
.energy-timer {
  font-size: 0.6rem;
  color: var(--kk-text-light);
  font-variant-numeric: tabular-nums;
}

/* ===== コンボ ===== */
.combo-display {
  position: fixed;
  top: 22%;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--kk-accent);
  text-shadow: 2px 2px 0 #fff;
  z-index: 9100;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}
.combo-display.active {
  opacity: 1;
  animation: comboPop 0.4s ease-out;
}
@keyframes comboPop {
  0%   { transform: translateX(-50%) scale(0.5); }
  50%  { transform: translateX(-50%) scale(1.3); }
  100% { transform: translateX(-50%) scale(1); }
}

/* ===== トースト ===== */
.toast {
  position: fixed;
  top: 15%;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: rgba(0,0,0,0.85);
  color: #fff;
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 9500;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.3s, transform 0.3s;
}
.toast.show {
  animation: toastSlideIn 0.3s ease-out;
}
.toast.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(-12px);
}
@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ===== 戻るリンク ===== */
.back-to-top-link {
  position: fixed;
  top: 6px;
  left: 8px;
  color: var(--kk-text-light);
  font-size: 0.7rem;
  text-decoration: none;
  z-index: 100;
  background: rgba(255,255,255,0.7);
  padding: 2px 8px;
  border-radius: 10px;
}

/* ===== スマホ調整 ===== */
@media (max-width: 480px) {
  .topbar { padding: 4px 8px; }
  .stat { font-size: 0.75rem; }
  .stat-ico { font-size: 1rem; }
  .orders-strip { min-height: 52px; padding: 3px 8px; gap: 4px; }
  .order-card { width: 58px; padding: 2px; }
  .order-emoji { font-size: 1.2rem; }
  .order-name { font-size: 0.5rem; margin: 1px 0; }
  .order-reward { font-size: 0.55rem; }
  .tab { padding: 6px 4px; }
  .tab-ico { font-size: 1.1rem; }
  .tab-label { font-size: 0.6rem; }
}

@media (max-height: 650px) {
  .topbar { padding: 3px 8px; }
  .orders-strip { min-height: 48px; padding: 2px 6px; }
  .order-card { width: 54px; padding: 2px; }
  .order-emoji { font-size: 1.1rem; }
  .tab { padding: 4px 4px; }
}

/* PC時も画面に収まる最大サイズ */
@media (min-width: 768px) {
  #game-screen {
    max-width: 440px;
    margin: 0 auto;
    border-left: 1px solid #eee;
    border-right: 1px solid #eee;
  }
}

/* ===== 共通UI位置調整（タブバーとの衝突回避） ===== */
.sg-sound-toggle {
  bottom: calc(62px + env(safe-area-inset-bottom, 0px)) !important;
  left: 8px !important;
  background: rgba(255,255,255,0.7) !important;
  color: var(--kk-text) !important;
  backdrop-filter: blur(6px) !important;
  border: 1px solid var(--kk-cell-border) !important;
}
.sg-share-btn {
  bottom: calc(62px + env(safe-area-inset-bottom, 0px)) !important;
  right: 8px !important;
  background: rgba(255,255,255,0.7) !important;
  color: var(--kk-text) !important;
  backdrop-filter: blur(6px) !important;
  border: 1px solid var(--kk-cell-border) !important;
}
.sg-lang-toggle {
  top: auto !important;
  bottom: calc(110px + env(safe-area-inset-bottom, 0px)) !important;
  right: calc(6px + env(safe-area-inset-right, 0px)) !important;
}
.sg-lang-toggle .sg-lang-btn {
  background: rgba(255,255,255,0.7) !important;
  color: var(--kk-text) !important;
  border-color: var(--kk-cell-border) !important;
  backdrop-filter: blur(6px) !important;
  font-size: 11px !important;
  padding: 4px 10px !important;
}
.sg-lang-toggle .sg-lang-btn.active {
  background: var(--kk-accent) !important;
  color: #fff !important;
  border-color: var(--kk-accent-dark) !important;
}

/* タイトル画面では共通ボタンを隠す */
#title-screen.active ~ .sg-sound-toggle,
#title-screen.active ~ .sg-share-btn,
#title-screen.active ~ .sg-lang-toggle {
  opacity: 0.3;
}

/* モーダルの出現アニメ */
.modal {
  animation: modalFadeIn 0.25s ease-out;
}
@keyframes modalFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.modal-inner {
  animation: modalSlideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes modalSlideUp {
  from { transform: translateY(30px) scale(0.95); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}