/* Compositor de músicas do sandbox (prefixo cx-, raiz .crux-cx) */

.crux-cx {
  --cx-bg: #0d0d13;
  --cx-panel: #13131b;
  --cx-panel2: #191923;
  --cx-line: #2a2a36;
  --cx-gold: #c8a447;
  --cx-gold-dim: #6a4d22;
  --cx-text: #ddd4c0;
  --cx-mute: #8a8270;
  --cx-hot: #ff6a3d;
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-rows: auto 1fr 22px;
  background: var(--cx-bg);
  color: var(--cx-text);
  font: 12px/1.3 'Segoe UI', system-ui, sans-serif;
  outline: none;
  user-select: none;
  pointer-events: auto;
}
.crux-cx:focus-visible { box-shadow: inset 0 0 0 1px var(--cx-gold-dim); }

/* controles base */
.crux-cx .cx-btn {
  background: var(--cx-panel2);
  border: 1px solid var(--cx-line);
  color: var(--cx-text);
  font: inherit;
  padding: 3px 8px;
  border-radius: 3px;
  cursor: pointer;
  white-space: nowrap;
}
.crux-cx .cx-btn:hover { border-color: var(--cx-gold-dim); color: #fff; }
.crux-cx .cx-btn.on { background: rgba(200, 164, 71, 0.22); border-color: var(--cx-gold); color: #ffe7a8; }
.crux-cx .cx-btn:disabled { opacity: 0.35; cursor: default; }
.crux-cx .cx-btn.cx-mini { padding: 1px 5px; font-size: 11px; min-width: 20px; }
.crux-cx .cx-btn.cx-solo.on { background: rgba(224, 192, 64, 0.3); }
.crux-cx .cx-btn.cx-primary { border-color: var(--cx-gold); color: #ffe7a8; }
.crux-cx .cx-btn.cx-danger:hover { border-color: #e05a5a; color: #ffb0a0; }
.crux-cx select,
.crux-cx input[type="text"],
.crux-cx .cx-number input {
  background: #0a0a0f;
  border: 1px solid var(--cx-line);
  color: var(--cx-text);
  font: inherit;
  padding: 2px 4px;
  border-radius: 3px;
  user-select: text;
}
.crux-cx select:focus,
.crux-cx input[type="text"]:focus { outline: none; border-color: var(--cx-gold); }
.crux-cx .cx-slider-label { color: var(--cx-mute); font-size: 11px; }
.crux-cx .cx-number,
.crux-cx .cx-select { display: inline-flex; align-items: center; gap: 4px; }
.crux-cx .cx-number input { cursor: ns-resize; text-align: center; }
.crux-cx .cx-number input:focus { cursor: text; outline: none; border-color: var(--cx-gold); }
.crux-cx .cx-slider { display: flex; flex-direction: column; gap: 2px; min-width: 120px; }
.crux-cx .cx-slider-head { display: flex; justify-content: space-between; gap: 6px; }
.crux-cx .cx-slider-val { color: var(--cx-text); font-variant-numeric: tabular-nums; font-size: 11px; }
.crux-cx input[type="range"] { width: 100%; accent-color: var(--cx-gold); margin: 0; height: 14px; }

/* transporte */
.crux-cx .cx-top { border-bottom: 1px solid var(--cx-line); background: var(--cx-panel); }
.crux-cx .cx-transport { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; padding: 6px 10px; }
.crux-cx .cx-tgroup { display: flex; align-items: center; gap: 4px; }
.crux-cx .cx-play { min-width: 34px; font-size: 13px; }
.crux-cx .cx-rec { color: #e05a5a; }
.crux-cx .cx-rec.on { background: rgba(224, 90, 90, 0.35); border-color: #e05a5a; color: #fff; }
.crux-cx .cx-pos { background: #08080c; border: 1px solid var(--cx-line); border-radius: 3px; padding: 2px 8px; gap: 10px; }
.crux-cx .cx-bbt { color: #ffe7a8; font: 14px/16px monospace; width: 76px; height: 16px; }
.crux-cx .cx-clock { color: var(--cx-mute); font: 12px/14px monospace; width: 76px; height: 14px; }
/* Os contadores mudam a cada quadro tocando: caixa de tamanho fixo isolada (contain: strict) e camada própria, para o
   texto novo repintar só ela (antes repintava o compositor inteiro). O layout ainda roda, mas confinado e barato. */
.crux-cx .cx-bbt, .crux-cx .cx-clock { display: inline-block; contain: strict; overflow: hidden; white-space: nowrap; will-change: transform; }
.crux-cx .cx-meter-h { width: 120px; height: 10px; border: 1px solid var(--cx-line); }

/* corpo */
.crux-cx .cx-main { display: grid; grid-template-columns: 230px 1fr; min-height: 0; }
.crux-cx .cx-sidehost { border-right: 1px solid var(--cx-line); background: var(--cx-panel); min-height: 0; position: relative; }
.crux-cx .cx-center { display: grid; grid-template-rows: 30px 1fr; min-width: 0; min-height: 0; }
.crux-cx .cx-tabs { display: flex; align-items: stretch; gap: 2px; padding: 3px 6px 0; border-bottom: 1px solid var(--cx-line); background: var(--cx-panel); }
.crux-cx .cx-tab { border-radius: 4px 4px 0 0; border-bottom: none; padding: 3px 14px; }
.crux-cx .cx-songtitle { margin-left: auto; align-self: center; color: var(--cx-gold); font-weight: 600; padding-right: 6px; }
.crux-cx .cx-view { position: relative; min-height: 0; min-width: 0; overflow: hidden; }
.crux-cx .cx-placeholder { padding: 40px; color: var(--cx-mute); text-align: center; font-size: 14px; }

/* faixas */
.crux-cx .cx-side { position: absolute; inset: 0; display: flex; flex-direction: column; }
.crux-cx .cx-side-head { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; padding: 6px; border-bottom: 1px solid var(--cx-line); }
.crux-cx .cx-side-title { flex: 1 0 100%; color: var(--cx-gold); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; font-size: 11px; }
/* os botões de nova faixa (um por tipo do registry) dividem a largura da linha: com três, a orquestra ocupa a segunda */
.crux-cx .cx-side-head .cx-btn { flex: 1 1 auto; }
.crux-cx .cx-tracklist { flex: 1; overflow-y: auto; padding: 4px 0; }
.crux-cx .cx-track {
  display: grid;
  grid-template-columns: 10px 6px 1fr auto auto auto auto;
  align-items: center;
  gap: 4px;
  padding: 4px 6px 7px 0;
  border-left: 3px solid transparent;
  position: relative;
  cursor: pointer;
}
.crux-cx .cx-track:hover { background: rgba(255, 255, 255, 0.03); }
.crux-cx .cx-track.on { background: rgba(200, 164, 71, 0.12); border-left-color: var(--tc); }
.crux-cx .cx-swatch { width: 10px; height: 18px; background: var(--tc); border-radius: 2px; margin-left: 4px; }
.crux-cx .cx-patdot { width: 6px; height: 6px; border-radius: 50%; border: 1px solid var(--cx-line); flex: 0 0 auto; }
.crux-cx .cx-patdot.on { background: var(--cx-gold); border-color: var(--cx-gold); }
.crux-cx .cx-track-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.crux-cx .cx-rename { width: 100%; }
.crux-cx .cx-badge { font-size: 9px; color: var(--cx-mute); border: 1px solid var(--cx-line); padding: 0 3px; border-radius: 2px; }
/* faixa de orquestra que não toca neste computador (sem os dados do banco): a sigla vira "sem dados" */
.crux-cx .cx-badge.cx-badge-nodata { color: #ff9a8a; border-color: #7a3a32; white-space: nowrap; }
/* O degradê fica parado e uma máscara escura encolhe da direita por transform (no compositor): animar a largura
   pedia layout e pintura de cada medidor a cada quadro tocando. */
.crux-cx .cx-track-meter { position: absolute; left: 14px; right: 8px; bottom: 2px; height: 3px; overflow: hidden;
  background: linear-gradient(90deg, #4f9a55, #c8c040 80%, #e05a3a); }
.crux-cx .cx-track-meter::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #08080c;
  transform-origin: 100% 50%;
  transform: scaleX(calc(1 - var(--lv, 0)));
  will-change: transform;
}
.crux-cx .cx-empty { color: var(--cx-mute); padding: 12px; }
.crux-cx .cx-menu {
  position: absolute;
  z-index: 20;
  display: flex;
  flex-direction: column;
  background: var(--cx-panel2);
  border: 1px solid var(--cx-gold-dim);
  padding: 3px;
  gap: 2px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.6);
}
.crux-cx .cx-menu .cx-btn { text-align: left; border-color: transparent; background: transparent; }

/* status */
.crux-cx .cx-status {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px;
  border-top: 1px solid var(--cx-line);
  background: var(--cx-panel);
  font-size: 11px;
  color: var(--cx-mute);
  white-space: nowrap;
  overflow: hidden;
}
.crux-cx .cx-status-hint { flex: 0 1 auto; overflow: hidden; text-overflow: ellipsis; }
.crux-cx .cx-status-msg { flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; text-align: center; }
.crux-cx .cx-status-msg.ok { color: #8bc34a; }
.crux-cx .cx-status-msg.warn { color: #e0c040; }
.crux-cx .cx-status-msg.error { color: #ff7a6a; }
.crux-cx .cx-status-info { flex: 0 0 auto; }

/* vistas de grade (canvas) */
.crux-cx .cx-canvas { position: relative; overflow: hidden; }
.crux-cx .cx-canvas-surface { position: absolute; left: 0; top: 0; pointer-events: none; }
.crux-cx .cx-canvas-scroll { position: absolute; inset: 0; overflow: auto; }
.crux-cx .cx-canvas-sizer { width: 1px; height: 1px; }
.crux-cx .cx-ruler,
.crux-cx .cx-vel { display: block; width: 100%; }
.crux-cx .cx-ruler { cursor: pointer; border-bottom: 1px solid var(--cx-line); }
.crux-cx .cx-vel { border-top: 1px solid var(--cx-line); cursor: ns-resize; }
.crux-cx .cx-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  padding: 4px 8px;
  border-bottom: 1px solid var(--cx-line);
  background: var(--cx-panel);
}
.crux-cx .cx-toolbar .cx-sep { width: 1px; align-self: stretch; background: var(--cx-line); }

/* painéis (Som, Mixer, Arquivo) */
.crux-cx .cx-scroll { position: absolute; inset: 0; overflow: auto; padding: 10px; }
.crux-cx .cx-section { background: var(--cx-panel); border: 1px solid var(--cx-line); border-radius: 4px; padding: 8px 10px; margin-bottom: 10px; }
.crux-cx .cx-section h4 { margin: 0 0 8px; color: var(--cx-gold); font-size: 11px; letter-spacing: 1px; text-transform: uppercase; }
.crux-cx .cx-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px 14px; }
.crux-cx .cx-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.crux-cx .cx-muted { color: var(--cx-mute); }
.crux-cx .cx-list { display: flex; flex-direction: column; gap: 2px; }
.crux-cx .cx-list-item { display: flex; align-items: center; gap: 8px; padding: 4px 6px; border-radius: 3px; cursor: pointer; }
.crux-cx .cx-list-item:hover { background: rgba(255, 255, 255, 0.04); }
.crux-cx .cx-list-item.on { background: rgba(200, 164, 71, 0.16); }

/* ajuda */
.crux-cx .cx-help { position: absolute; inset: 0; z-index: 30; background: rgba(0, 0, 0, 0.6); display: flex; align-items: center; justify-content: center; }
.crux-cx .cx-help-box { background: var(--cx-panel); border: 1px solid var(--cx-gold-dim); border-radius: 6px; padding: 14px 18px; max-width: 760px; max-height: 85%; overflow: auto; }
.crux-cx .cx-help-box h3 { margin: 0 0 6px; color: var(--cx-gold); }
.crux-cx .cx-help-box h4 { margin: 10px 0 4px; color: var(--cx-mute); font-size: 11px; text-transform: uppercase; letter-spacing: 1px; }
.crux-cx .cx-help-grid { display: grid; grid-template-columns: max-content 1fr; gap: 3px 14px; }
.crux-cx .cx-help-key { color: #ffe7a8; font-family: monospace; }
.crux-cx .cx-help-foot { color: var(--cx-mute); margin: 10px 0 0; }

/* Pattern em edição (barra do piano roll e da bateria) */
.crux-cx .cx-patbar { display: inline-flex; align-items: center; gap: 6px; min-width: 0; }
.crux-cx .cx-patbar-hint { display: inline-flex; align-items: center; gap: 4px; min-width: 0; overflow: hidden; }
.crux-cx .cx-btn.cx-patbar-chip { border-left: 3px solid var(--pc, var(--cx-gold)); white-space: nowrap; }
/* Modo do transporte (PAT/SONG) */
.crux-cx .cx-btn.cx-mode { min-width: 46px; font-size: 11px; letter-spacing: 1px; }
.crux-cx .cx-patbar-select select { max-width: 150px; border-left: 4px solid var(--pc, var(--cx-gold)); }