/* ═══════════════════════════════════════════════════════════════
   MekSim — Mekanism 生産ラインシミュレーター
   CSS (モバイルファースト)
   ═══════════════════════════════════════════════════════════════ */

/* ── リセット & 基盤 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* カラーパレット */
  --clr-bg:        hsl(222, 30%, 6%);
  --clr-surface:   hsl(222, 25%, 10%);
  --clr-surface2:  hsl(222, 22%, 13%);
  --clr-surface3:  hsl(222, 20%, 17%);
  --clr-border:    hsl(222, 20%, 22%);
  --clr-border2:   hsl(222, 18%, 28%);

  --clr-primary:   hsl(195, 100%, 45%);
  --clr-primary-d: hsl(195, 100%, 30%);
  --clr-primary-g: hsl(195, 100%, 60%);
  --clr-accent:    hsl(45,  100%, 55%);
  --clr-danger:    hsl(0,   80%,  60%);
  --clr-success:   hsl(145, 60%,  45%);
  --clr-warn:      hsl(35,  100%, 55%);

  --clr-txt:       hsl(220, 20%, 90%);
  --clr-txt-dim:   hsl(220, 15%, 60%);
  --clr-txt-muted: hsl(220, 10%, 40%);

  /* リソースカラー */
  --clr-item:   hsl(0,   70%, 60%);
  --clr-liquid: hsl(205, 80%, 55%);
  --clr-gas:    hsl(140, 60%, 50%);
  --clr-energy: hsl(50,  100%, 55%);
  --clr-heat:   hsl(20,  90%,  60%);
  --clr-infuse: hsl(280, 60%,  60%);

  /* 工場ティアカラー */
  --clr-tier1: #4caf50;
  --clr-tier2: #f44336;
  --clr-tier3: #00bcd4;
  --clr-tier4: #9c27b0;

  /* レイアウト */
  --toolbar-h:    52px;
  --statusbar-h:  40px;
  --sidebar-w:    260px;
  --props-w:      280px;

  /* タイポグラフィ */
  --font-main: 'Noto Sans JP', sans-serif;
  --font-code: 'JetBrains Mono', monospace;
  --font-brand: 'Rajdhani', sans-serif;

  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(0,0,0,.4);
  --shadow-md: 0 4px 20px rgba(0,0,0,.6);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.8);
  --glow-primary: 0 0 20px hsla(195,100%,45%,.35);
  --glow-danger:  0 0 15px hsla(0,80%,60%,.35);

  /* トランジション */
  --tr-fast: 120ms ease;
  --tr-med:  240ms ease;
  --tr-slow: 400ms ease;

  /* 角丸 */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--clr-bg);
  color: var(--clr-txt);
  font-family: var(--font-main);
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── スクロールバー ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--clr-surface); }
::-webkit-scrollbar-thumb { background: var(--clr-border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-primary-d); }

/* ── ユーティリティ ── */
.hidden { display: none !important; }
.mobile-only { display: none; }

/* ═══════════════════════════════════════════
   ツールバー
   ═══════════════════════════════════════════ */
#toolbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--toolbar-h);
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  z-index: 100;
  backdrop-filter: blur(12px);
}

/* ブランド */
.toolbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.brand-icon {
  font-size: 22px;
  color: var(--clr-primary);
  animation: spin-slow 8s linear infinite;
  filter: drop-shadow(0 0 6px var(--clr-primary));
}
@keyframes spin-slow { to { transform: rotate(360deg); } }
.brand-name {
  font-family: var(--font-brand);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--clr-txt);
}
.brand-accent { color: var(--clr-primary); }
.brand-sub {
  font-size: 11px;
  color: var(--clr-txt-muted);
  letter-spacing: .5px;
  display: none;
}

/* ツールバー中央 */
.toolbar-center {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  justify-content: center;
}

/* シミュレーションボタン */
.btn-sim {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 18px;
  height: 34px;
  background: linear-gradient(135deg, var(--clr-primary-d), var(--clr-primary));
  color: #fff;
  border: none;
  border-radius: var(--r-md);
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--tr-med);
  box-shadow: var(--glow-primary);
  white-space: nowrap;
}
.btn-sim:hover { filter: brightness(1.15); transform: translateY(-1px); }
.btn-sim.running {
  background: linear-gradient(135deg, hsl(0,60%,35%), hsl(0,70%,50%));
  box-shadow: var(--glow-danger);
}
.btn-sim.running:hover { filter: brightness(1.1); }

/* アイコンボタン（ツールバー） */
.btn-icon-toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: var(--clr-txt-dim);
  cursor: pointer;
  transition: all var(--tr-fast);
}
.btn-icon-toolbar:hover {
  background: var(--clr-surface3);
  color: var(--clr-txt);
  border-color: var(--clr-border2);
}
.btn-danger-icon:hover {
  color: var(--clr-danger);
  border-color: var(--clr-danger);
  background: hsla(0,80%,60%,.1);
}

/* 速度 */
.speed-group {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  padding: 0 10px;
  height: 34px;
}
.speed-label {
  font-size: 11px;
  color: var(--clr-txt-muted);
  font-family: var(--font-brand);
  letter-spacing: .5px;
}
#sim-speed {
  width: 80px;
  accent-color: var(--clr-primary);
  cursor: pointer;
}
#sim-speed-val {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--clr-accent);
  min-width: 28px;
  text-align: right;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════
   メインレイアウト
   ═══════════════════════════════════════════ */
#app {
  position: fixed;
  top: var(--toolbar-h);
  bottom: var(--statusbar-h);
  left: 0; right: 0;
  display: flex;
  overflow: hidden;
}

/* ═══════════════════════════════════════════
   左サイドバー
   ═══════════════════════════════════════════ */
#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--clr-surface);
  border-right: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  transition: transform var(--tr-slow);
  z-index: 50;
}

.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--clr-border);
}
.sidebar-header h2 {
  font-family: var(--font-brand);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .5px;
  color: var(--clr-primary);
}

/* 検索 */
.search-wrap {
  position: relative;
  padding: 10px 12px;
  border-bottom: 1px solid var(--clr-border);
}
.search-icon {
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-txt-muted);
  pointer-events: none;
}
#machine-search {
  width: 100%;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: var(--clr-txt);
  font-family: var(--font-main);
  font-size: 12px;
  padding: 7px 10px 7px 28px;
  outline: none;
  transition: border-color var(--tr-fast);
}
#machine-search:focus { border-color: var(--clr-primary); }
#machine-search::placeholder { color: var(--clr-txt-muted); }

/* カテゴリタブ */
.cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--clr-border);
}
.cat-tab {
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: 20px;
  color: var(--clr-txt-dim);
  font-size: 11px;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all var(--tr-fast);
  white-space: nowrap;
}
.cat-tab:hover {
  border-color: var(--clr-primary-d);
  color: var(--clr-primary);
}
.cat-tab.active {
  background: var(--clr-primary-d);
  border-color: var(--clr-primary);
  color: #fff;
}

/* 機械リスト */
.machine-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* 機械カード */
.machine-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  cursor: grab;
  transition: all var(--tr-fast);
  user-select: none;
  position: relative;
  overflow: hidden;
}
.machine-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--card-color, var(--clr-primary));
  border-radius: 3px 0 0 3px;
}
.machine-card:hover {
  background: var(--clr-surface3);
  border-color: var(--clr-border2);
  transform: translateX(2px);
}
.machine-card:active { cursor: grabbing; }
.machine-card.dragging { opacity: .5; }

.card-icon {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
  font-size: 16px;
  background: hsla(0,0%,100%,.05);
  flex-shrink: 0;
}
.card-body { flex: 1; min-width: 0; }
.card-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--clr-txt);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-name-en {
  font-size: 10px;
  color: var(--clr-txt-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-time {
  font-family: var(--font-code);
  font-size: 10px;
  color: var(--clr-accent);
  flex-shrink: 0;
}

/* カテゴリラベル */
.cat-label {
  padding: 8px 12px 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--clr-txt-muted);
}

/* ═══════════════════════════════════════════
   キャンバスエリア
   ═══════════════════════════════════════════ */
#canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--clr-bg);
  background-image:
    radial-gradient(circle at 1px 1px, hsl(222,20%,15%) 1px, transparent 0);
  background-size: 24px 24px;
}

#main-canvas {
  position: absolute;
  top: 0; left: 0;
  cursor: default;
  touch-action: none;
}

/* キャンバスツール */
.canvas-tools {
  position: absolute;
  top: 12px; right: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 10;
}
.cv-btn {
  width: 34px; height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: var(--clr-txt-dim);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--tr-fast);
  box-shadow: var(--shadow-sm);
}
.cv-btn:hover {
  background: var(--clr-surface2);
  color: var(--clr-txt);
  border-color: var(--clr-border2);
}
.cv-btn.active {
  background: var(--clr-primary-d);
  border-color: var(--clr-primary);
  color: #fff;
  box-shadow: var(--glow-primary);
}
.cv-divider {
  height: 1px;
  background: var(--clr-border);
  margin: 2px 4px;
}

/* キャンバス情報 */
.canvas-info {
  position: absolute;
  bottom: 10px; left: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: hsla(222,30%,6%,.75);
  backdrop-filter: blur(8px);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  padding: 5px 12px;
  font-size: 11px;
  color: var(--clr-txt-dim);
}
#zoom-pct {
  font-family: var(--font-code);
  color: var(--clr-primary);
  font-size: 11px;
}
.ci-sep { color: var(--clr-border2); }

/* ドロップヒント */
.drop-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsla(195,100%,45%,.07);
  border: 2px dashed var(--clr-primary);
  pointer-events: none;
  z-index: 5;
  animation: hint-pulse 1.5s ease infinite;
}
@keyframes hint-pulse {
  0%,100% { opacity: .7; }
  50% { opacity: 1; }
}
.drop-hint-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.drop-hint-icon {
  font-size: 40px;
  color: var(--clr-primary);
  filter: drop-shadow(var(--glow-primary));
}
.drop-hint p {
  font-family: var(--font-brand);
  font-size: 16px;
  font-weight: 600;
  color: var(--clr-primary);
  letter-spacing: 1px;
}

/* 接続中バッジ */
.connecting-badge {
  position: absolute;
  top: 12px; left: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: hsla(222,30%,6%,.9);
  backdrop-filter: blur(8px);
  border: 1px solid var(--clr-primary);
  border-radius: var(--r-md);
  padding: 7px 14px;
  font-size: 12px;
  color: var(--clr-primary);
  box-shadow: var(--glow-primary);
  z-index: 10;
  animation: badge-in .2s ease;
}
@keyframes badge-in { from { opacity:0; transform:translateY(-6px); } }
.pulse-dot {
  width: 8px; height: 8px;
  background: var(--clr-primary);
  border-radius: 50%;
  animation: dot-pulse 1s ease infinite;
}
@keyframes dot-pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50% { opacity:.5; transform:scale(.7); }
}

/* ═══════════════════════════════════════════
   右プロパティパネル
   ═══════════════════════════════════════════ */
#props-panel {
  width: var(--props-w);
  min-width: var(--props-w);
  background: var(--clr-surface);
  border-left: 1px solid var(--clr-border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

/* 空状態 */
.props-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
  text-align: center;
  height: 100%;
}
.props-empty-icon { font-size: 48px; margin-bottom: 16px; opacity: .4; }
.props-empty-title {
  font-family: var(--font-brand);
  font-size: 16px;
  font-weight: 700;
  color: var(--clr-txt-dim);
  margin-bottom: 8px;
}
.props-empty-sub {
  font-size: 12px;
  color: var(--clr-txt-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}
.props-tips {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tip-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  background: var(--clr-surface2);
  border-radius: var(--r-sm);
  font-size: 11px;
  color: var(--clr-txt-dim);
}
.tip-key {
  font-family: var(--font-code);
  font-size: 10px;
  padding: 2px 7px;
  background: var(--clr-surface3);
  border: 1px solid var(--clr-border2);
  border-radius: 4px;
  color: var(--clr-txt);
  white-space: nowrap;
}

/* プロパティ共通 */
.prop-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--clr-border);
  background: var(--clr-surface2);
}
.prop-icon {
  width: 38px; height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--clr-surface3);
  border-radius: var(--r-sm);
  flex-shrink: 0;
}
.prop-info { flex: 1; min-width: 0; }
.prop-name {
  font-weight: 700;
  font-size: 14px;
  color: var(--clr-txt);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.prop-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  font-size: 11px;
  color: var(--clr-txt-muted);
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--clr-txt-muted);
  transition: background var(--tr-med);
}
.status-dot.idle { background: var(--clr-txt-muted); }
.status-dot.processing {
  background: var(--clr-success);
  box-shadow: 0 0 6px var(--clr-success);
  animation: status-pulse 1s ease infinite;
}
.status-dot.waiting {
  background: var(--clr-warn);
  box-shadow: 0 0 6px var(--clr-warn);
}
.status-dot.error {
  background: var(--clr-danger);
  box-shadow: 0 0 6px var(--clr-danger);
}
@keyframes status-pulse { 0%,100% {opacity:1} 50% {opacity:.4} }

/* 削除ボタン */
.btn-danger-sm {
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: var(--clr-txt-muted);
  cursor: pointer;
  transition: all var(--tr-fast);
  flex-shrink: 0;
}
.btn-danger-sm:hover {
  background: hsla(0,80%,60%,.15);
  border-color: var(--clr-danger);
  color: var(--clr-danger);
}

/* プロパティセクション */
.prop-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--clr-border);
}
.prop-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--clr-txt-muted);
  margin-bottom: 10px;
}

/* セレクト */
.prop-select {
  width: 100%;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: var(--clr-txt);
  font-family: var(--font-main);
  font-size: 12px;
  padding: 8px 10px;
  cursor: pointer;
  outline: none;
  transition: border-color var(--tr-fast);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23607d8b' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}
.prop-select:focus { border-color: var(--clr-primary); }
.prop-select option { background: var(--clr-surface2); }

.manual-input-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn-supply {
  background: var(--clr-primary);
  color: #fff;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  padding: 8px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: background var(--tr-fast), transform var(--tr-fast);
}

.btn-supply:hover {
  background: #2a6ebd;
  transform: translateY(-1px);
}

.manual-input-row {
  display: flex;
  gap: 10px;
  width: 100%;
  align-items: center;
}

.btn-supply-toggle,
.btn-supply-now {
  min-width: 98px;
  border-radius: var(--r-sm);
  padding: 8px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: background var(--tr-fast), transform var(--tr-fast);
}

.btn-supply-toggle {
  background: #424242;
  color: #fff;
  border: 1px solid #555;
}

.btn-supply-toggle.on {
  background: #4caf50;
  border-color: #388e3c;
}

.btn-supply-toggle.off {
  background: #f44336;
  border-color: #d32f2f;
}

.btn-supply-now {
  background: #607d8b;
  color: #fff;
  border: 1px solid transparent;
}

.btn-supply-now:hover {
  background: #546e7a;
}

.manual-supply-status {
  width: 100%;
  margin-top: 8px;
  font-size: 12px;
  color: var(--clr-txt-muted);
}

.manual-input-note {
  margin-top: 10px;
  font-size: 11px;
  color: var(--clr-txt-muted);
}

/* レシピ詳細 */
.recipe-box {
  margin-top: 10px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  padding: 10px;
}
.recipe-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.recipe-inputs, .recipe-outputs {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.recipe-arrow {
  font-size: 18px;
  color: var(--clr-primary);
  flex-shrink: 0;
}
.recipe-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--clr-txt-dim);
}
.recipe-item-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.recipe-amount {
  font-family: var(--font-code);
  font-size: 10px;
  color: var(--clr-accent);
  font-weight: 500;
}

/* アップグレード */
.upgrade-groups {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.upg-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
.upg-label {
  font-size: 11px;
  color: var(--clr-txt-dim);
  width: 72px;
  flex-shrink: 0;
}
.upg-slots {
  display: flex;
  gap: 3px;
  flex: 1;
  flex-wrap: wrap;
}
.upg-slot {
  width: 12px; height: 12px;
  border-radius: 3px;
  background: var(--clr-surface3);
  border: 1px solid var(--clr-border);
  cursor: pointer;
  transition: all var(--tr-fast);
  display: flex; /* Added for centering text */
  align-items: center; /* Added for centering text */
  justify-content: center; /* Added for centering text */
  font-size: 12px; /* Adjusted font size for square/box */
  color: var(--clr-txt-dim); /* Default color for inactive */
}
.upg-slot:hover { border-color: var(--slot-color, var(--clr-primary)); }
.upg-slot.active {
  background: var(--clr-success); /* Green background for active */
  border-color: var(--clr-success); /* Green border for active */
  box-shadow: 0 0 4px var(--clr-success); /* Green shadow for active */
  color: #fff; /* White text for active */
}

/* パイプのみ色設定を戻す (Tier 1-4) */
#state-pipe .upg-slot[data-index="0"].active {
  background: var(--clr-tier1); border-color: var(--clr-tier1); box-shadow: 0 0 4px var(--clr-tier1);
}
#state-pipe .upg-slot[data-index="1"].active {
  background: var(--clr-tier2); border-color: var(--clr-tier2); box-shadow: 0 0 4px var(--clr-tier2);
}
#state-pipe .upg-slot[data-index="2"].active {
  background: var(--clr-tier3); border-color: var(--clr-tier3); box-shadow: 0 0 4px var(--clr-tier3);
}
#state-pipe .upg-slot[data-index="3"].active {
  background: var(--clr-tier4); border-color: var(--clr-tier4); box-shadow: 0 0 4px var(--clr-tier4);
}

.upg-count {
  font-family: var(--font-code);
  font-size: 10px;
  color: var(--clr-txt-muted);
  min-width: 28px;
  text-align: right;
}

/* 工場化 */
.factory-tiers {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.factory-btn {
  flex: 1;
  min-width: 48px;
  padding: 6px 4px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: var(--clr-txt-dim);
  font-size: 11px;
  font-family: var(--font-main);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--tr-fast);
  text-align: center;
  line-height: 1.4;
}
.factory-btn small { font-weight: 400; font-size: 9px; }
.factory-btn:hover {
  background: var(--clr-surface3);
  color: var(--clr-txt);
}
.factory-btn.active {
  background: var(--tc, var(--clr-primary-d));
  border-color: var(--tc, var(--clr-primary));
  color: #fff;
  box-shadow: 0 0 8px var(--tc, var(--clr-primary));
}

/* 統計グリッド */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.stat-cell {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  padding: 8px 10px;
}
.stat-lbl {
  font-size: 10px;
  color: var(--clr-txt-muted);
  margin-bottom: 4px;
}
.stat-val {
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 500;
  color: var(--clr-accent);
}

/* パイプバッジ */
.pipe-type-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid currentColor;
  display: inline-block;
  margin-top: 4px;
}

/* ═══════════════════════════════════════════
   ステータスバー
   ═══════════════════════════════════════════ */
#status-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--statusbar-h);
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 0;
  z-index: 100;
  overflow: hidden;
}
.sb-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  border-right: 1px solid var(--clr-border);
  height: 100%;
  flex-shrink: 0;
}
.sb-item:first-child { padding-left: 0; }
.sb-icon { font-size: 14px; }
.sb-lbl {
  font-size: 11px;
  color: var(--clr-txt-muted);
}
.sb-val {
  font-family: var(--font-code);
  font-size: 12px;
  font-weight: 500;
  color: var(--clr-accent);
}
#sb-bottleneck.active .sb-val {
  color: var(--clr-warn);
  animation: warn-blink 1.5s ease infinite;
}
@keyframes warn-blink { 0%,100% {opacity:1} 50% {opacity:.5} }
.sb-tick { margin-left: auto; border-right: none; }

/* ═══════════════════════════════════════════
   ドラッグゴースト
   ═══════════════════════════════════════════ */
#drag-ghost {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  opacity: .8;
  transform: translate(-50%, -50%);
  background: var(--clr-surface2);
  border: 2px dashed var(--clr-primary);
  border-radius: var(--r-sm);
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--clr-primary);
  white-space: nowrap;
  box-shadow: var(--shadow-lg), var(--glow-primary);
}

/* ═══════════════════════════════════════════
   アニメーション（キャンバス外の要素）
   ═══════════════════════════════════════════ */
@keyframes fade-in { from {opacity:0} to {opacity:1} }
@keyframes slide-up { from {transform:translateY(20px);opacity:0} to {transform:translateY(0);opacity:1} }

/* ═══════════════════════════════════════════
   モバイル対応 (max-width: 900px)
   ═══════════════════════════════════════════ */
@media (max-width: 900px) {
  .mobile-only { display: flex; }
  .brand-sub { display: none; }

  :root {
    --sidebar-w: 100%;
    --props-w: 100%;
  }

  /* ツールバー */
  #toolbar {
    padding: 0 10px;
    gap: 8px;
  }
  #sim-toggle-label { display: none; }
  .speed-group { display: none; }
  .brand-sub { display: none; }

  /* メインレイアウト: フルスクリーンキャンバス */
  #app {
    flex-direction: column;
  }

  /* サイドバー: 下から引き出しシート */
  #sidebar {
    position: fixed;
    bottom: var(--statusbar-h);
    left: 0; right: 0;
    width: 100%;
    height: 60vh;
    min-width: unset;
    border-right: none;
    border-top: 2px solid var(--clr-primary);
    border-radius: var(--r-lg) var(--r-lg) 0 0;
    transform: translateY(100%);
    z-index: 200;
    box-shadow: 0 -8px 40px rgba(0,0,0,.6);
    transition: transform .35s cubic-bezier(.4,0,.2,1);
  }
  #sidebar.open { transform: translateY(0); }

  .panel-drag-handle {
    display: block;
    width: 40px; height: 4px;
    background: var(--clr-border2);
    border-radius: 2px;
    margin: 0 auto 0;
    position: absolute;
    top: 8px; left: 50%;
    transform: translateX(-50%);
  }
  .sidebar-inner { padding-top: 10px; }

  /* キャンバス: 全画面 */
  #canvas-wrap {
    flex: 1;
    width: 100%;
  }

  /* プロパティパネル: 下からのシート */
  #props-panel {
    position: fixed;
    bottom: var(--statusbar-h);
    left: 0; right: 0;
    width: 100%;
    max-height: 55vh;
    min-width: unset;
    border-left: none;
    border-top: 2px solid var(--clr-primary);
    border-radius: var(--r-lg) var(--r-lg) 0 0;
    transform: translateY(100%);
    z-index: 200;
    box-shadow: 0 -8px 40px rgba(0,0,0,.6);
    transition: transform .35s cubic-bezier(.4,0,.2,1);
    padding-top: 10px;
  }
  #props-panel.open { transform: translateY(0); }

  /* ステータスバー */
  #status-bar {
    gap: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .sb-item { flex-shrink: 0; }
  .sb-lbl { display: none; }
  .sb-tick { display: none; }

  /* キャンバスツール */
  .canvas-tools {
    top: 8px; right: 8px;
  }
  .cv-btn {
    width: 40px; height: 40px;
    font-size: 18px;
  }

  .canvas-info { display: none; }
}

@media (max-width: 480px) {
  #toolbar { gap: 4px; }
  .toolbar-actions { gap: 4px; }
}

/* ═══════════════════════════════════════════
   タブレット (901px ～ 1199px)
   ═══════════════════════════════════════════ */
@media (min-width: 901px) and (max-width: 1199px) {
  :root {
    --sidebar-w: 220px;
    --props-w: 240px;
  }
  .brand-sub { display: block; }
}

/* ═══════════════════════════════════════════
   デスクトップ (1200px+)
   ═══════════════════════════════════════════ */
@media (min-width: 1200px) {
  .brand-sub { display: block; }
}

/* 長押しメニュー（モバイル用） */
#longpress-menu {
  position: fixed;
  z-index: 1200;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  padding: 10px;
  min-width: 180px;
  box-shadow: var(--shadow-lg);
  color: var(--clr-txt);
}
#longpress-menu .lp-row {
  display:flex; align-items:center; gap:8px; margin-bottom:8px; font-weight:700;
}
.lp-btn {
  display:block; width:100%; padding:8px 10px; margin-top:6px; border-radius:6px; border:1px solid var(--clr-border);
  background: var(--clr-surface3); color:var(--clr-txt); font-size:13px; text-align:center; cursor:pointer;
}
.lp-btn:hover { background: var(--clr-surface); }
.lp-cancel { background:transparent; color:var(--clr-txt-dim); border-style:dashed; }