:root {
  --bg: #14161b;
  --panel: #1b1e24;
  --panel-2: #20232a;
  --border: #2a2e37;
  --border-soft: #23262e;
  --text: #e8eaed;
  --text-dim: #9aa1ac;
  --text-faint: #666d78;
  --amber: #e8941a;
  --amber-dim: #a86f1c;
  --cyan: #59d0ff;
  --green: #4caf82;
  --red: #e2584f;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", "Cascadia Code", Consolas, monospace;
  --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  overflow: hidden;
}
button {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 6px 10px;
  cursor: pointer;
  transition: background .12s, border-color .12s;
}
button:hover { background: #262a32; border-color: #3a3f4a; }
button:active { background: #1e2126; }
button.primary {
  background: var(--amber);
  border-color: var(--amber);
  color: #1a1408;
  font-weight: 600;
}
button.primary:hover { background: #f4a02a; }
button.ghost {
  background: transparent;
  border-color: transparent;
}
button.ghost:hover { background: var(--panel-2); }
button:disabled { opacity: .4; cursor: default; }
input, select, textarea {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 5px 7px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--amber-dim);
}
input[type="color"] {
  padding: 2px;
  width: 34px;
  height: 26px;
  cursor: pointer;
}
input[type="number"] { width: 100%; }
label.field {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 11px;
  color: var(--text-dim);
}
.app {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  height: 100vh;
  height: 100dvh;
}
.topbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--amber);
  margin-right: 10px;
  white-space: nowrap;
}
.brand small { color: var(--text-faint); font-weight: 400; margin-left: 6px; }
.sep { width: 1px; height: 20px; background: var(--border); margin: 0 4px; }
.spacer { flex: 1; }
.toolrail {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.tool-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
}
.tool-btn.active {
  background: var(--amber);
  border-color: var(--amber);
  color: #1a1408;
}
.tool-btn svg { width: 15px; height: 15px; }
.main {
  display: grid;
  grid-template-columns: var(--lua-w, 320px) 7px 1fr 7px var(--props-w, 300px);
  min-height: 0;
}
.main.lua-hidden { grid-template-columns: 1fr 7px var(--props-w, 300px); }
.main.lua-hidden .lua-sidebar,
.main.lua-hidden .gutter-left { display: none; }
.gutter {
  position: relative;
  cursor: col-resize;
  background: transparent;
  z-index: 5;
}
.gutter::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: 50%;
  width: 1px;
  transform: translateX(-50%);
  background: var(--border);
}
.gutter:hover::before, .gutter.dragging::before, .gutter:focus-visible::before {
  background: var(--amber);
  width: 2px;
}
.gutter:focus-visible { outline: none; }
body.col-resizing { cursor: col-resize; user-select: none; }
.canvas-area {
  position: relative;
  overflow: auto;
  background:
    linear-gradient(45deg, #191b20 25%, transparent 25%),
    linear-gradient(-45deg, #191b20 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #191b20 75%),
    linear-gradient(-45deg, transparent 75%, #191b20 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
  background-color: #121317;
  display: flex;
  align-items: safe center;
  justify-content: safe center;
  padding: 40px;
}
.stage-wrap {
  position: relative;
  box-shadow: 0 0 0 1px var(--border), 0 20px 60px -20px rgba(0,0,0,.6);
  flex-shrink: 0;
}
#stageCanvas { display: block; cursor: crosshair; touch-action: none; }
.text-overlay {
  position: absolute;
  resize: none;
  border: 1.5px dashed var(--cyan);
  background: rgba(20, 22, 27, 0.92);
  color: var(--text);
  font-family: var(--sans);
  padding: 2px 4px;
  margin: 0;
  z-index: 50;
}
.sidebar {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  min-height: 0;
}
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  border-radius: 0;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  padding: 9px 4px;
  font-size: 11px;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.tab-btn.active { color: var(--amber); border-bottom-color: var(--amber); background: var(--panel-2); }
.tab-panel { display: none; flex: 1; min-height: 0; overflow-y: auto; padding: 12px; }
.tab-panel.active { display: flex; flex-direction: column; gap: 10px; }
.panel-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-faint);
  margin: 4px 0 -2px;
}
.field-row { display: flex; gap: 8px; }
.field-row > label.field { flex: 1; min-width: 0; }
.color-field { display: flex; align-items: center; gap: 6px; }
.color-field input[type="number"] { width: 52px; flex: none; }
.hex-chip {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-faint);
}
.empty-hint {
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1.5;
  padding: 20px 4px;
  text-align: center;
}
.layer-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 7px;
  border: 1px solid var(--border-soft);
  border-radius: 5px;
  background: var(--panel-2);
  cursor: pointer;
  font-size: 12px;
}
.layer-row.selected { border-color: var(--amber); background: #2a2410; }
.layer-row .kind-badge {
  font-family: var(--mono);
  font-size: 9px;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--text-faint);
  border-radius: 3px;
  padding: 2px 4px;
  flex-shrink: 0;
}
.layer-row .label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.layer-row .mini-btn {
  background: transparent;
  border: none;
  padding: 2px 4px;
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1;
}
.layer-row .mini-btn:hover { color: var(--text); }
.layer-row[draggable="true"] { user-select: none; }
.layer-row.drag-over { border-color: var(--cyan); }
#scriptText {
  flex: 1;
  width: 100%;
  min-height: 160px;
  resize: none;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  white-space: pre;
}
.script-result {
  font-family: var(--mono);
  font-size: 11px;
  border-radius: 5px;
  padding: 8px;
  border: 1px solid var(--border-soft);
  background: var(--panel-2);
  white-space: pre-wrap;
  max-height: 160px;
  overflow-y: auto;
}
.script-result.ok { border-color: var(--green); color: var(--green); }
.script-result.err { border-color: var(--red); color: #ff9d96; }
.statusbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 5px 12px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
}
.statusbar .grow { flex: 1; }
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,11,14,.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 560px;
  max-width: 92vw;
  max-height: 84vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.7);
}
.modal-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { margin: 0; font-size: 13px; font-weight: 600; }
.modal-body { padding: 14px 16px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}
.modal textarea { width: 100%; min-height: 220px; font-family: var(--mono); font-size: 11.5px; }
.toast-container {
  position: fixed;
  bottom: 44px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 300;
}
.toast {
  padding: 9px 14px;
  border-radius: 6px;
  font-size: 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px -8px rgba(0,0,0,.5);
  animation: toast-in .15s ease-out;
  max-width: 320px;
}
.toast.success { border-color: var(--green); }
.toast.error { border-color: var(--red); }
@keyframes toast-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.crosshair-badge {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  color: #0b0c0f;
  background: var(--cyan);
  padding: 2px 5px;
  border-radius: 3px;
  pointer-events: none;
  z-index: 60;
  white-space: nowrap;
}
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #33383f; border-radius: 5px; }
.hidden-file-input { display: none; }
.small-note { font-size: 11px; color: var(--text-faint); line-height: 1.5; }
.schema-pre {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 10px;
  overflow-x: auto;
  white-space: pre;
  line-height: 1.5;
}
.check-row { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-dim); }
button.ghost.active { background: var(--amber); border-color: var(--amber); color: #1a1408; }
.dpad {
  display: grid;
  grid-template-columns: 38px 38px 38px;
  grid-template-rows: 38px 38px 38px;
  gap: 3px;
  margin-top: 4px;
}
.dpad button {
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}
.dpad-center {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-faint);
  background: var(--panel);
  border-radius: 4px;
  border: 1px solid var(--border-soft);
}

/* ---- Lua host-script sidebar (left column) ---- */
.lua-sidebar {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  min-height: 0;
  min-width: 0;
}
.lua-head {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 7px 9px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.lua-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--amber);
  white-space: nowrap;
}
.lua-head .spacer { flex: 1; }
.lua-head button { padding: 4px 7px; font-size: 12px; }
.lua-stale {
  display: none;
  font-size: 10px;
  color: var(--amber);
  background: #2a2410;
  border: 1px solid var(--amber-dim);
  border-radius: 3px;
  padding: 1px 5px;
  white-space: nowrap;
}
.lua-stale.show { display: inline-block; }
.lua-editor { position: relative; flex: 1; min-height: 0; overflow: hidden; }
.lua-hl, .lua-input {
  position: absolute;
  inset: 0;
  margin: 0;
  border: 0;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  tab-size: 4;
  white-space: pre;
  word-wrap: normal;
}
.lua-hl {
  pointer-events: none;
  color: var(--text);
  z-index: 0;
  overflow: hidden;
}
.lua-input {
  z-index: 1;
  resize: none;
  background: transparent;
  color: transparent;
  caret-color: var(--text);
  -webkit-text-fill-color: transparent;
  overflow: auto;
  border-radius: 0;
  outline: none;
}
.lua-input:focus { border-color: transparent; outline: none; }
.lua-hl .kw  { color: #c99bff; }
.lua-hl .str { color: #86c98a; }
.lua-hl .num { color: #d99a5b; }
.lua-hl .com { color: var(--text-faint); }
.lua-hl .mk  { color: var(--cyan); }
.lua-hl .hl-line { background: rgba(232, 148, 26, .18); border-radius: 2px; }
.lua-foot { padding: 7px 10px; border-top: 1px solid var(--border); flex-shrink: 0; }
.lua-foot code { font-family: var(--mono); color: var(--cyan); font-size: 10px; }

/* ---- mobile / narrow viewport ---- */
@media (max-width: 880px) {
  html, body { overflow: auto; }
  .main, .main.lua-hidden {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    grid-auto-rows: auto;
  }
  .gutter { display: none; }
  .canvas-area { order: 1; min-height: 46vh; }
  .sidebar {
    order: 2;
    border-left: none;
    border-top: 1px solid var(--border);
    min-height: 0;
  }
  .lua-sidebar {
    display: flex !important;
    order: 3;
    border-right: none;
    border-top: 1px solid var(--border);
    min-height: 58vh;
  }
  .canvas-area { padding: 14px; }
  .topbar, .toolrail { gap: 5px; }
  .topbar button, .toolrail button {
    min-height: 38px;
    padding: 7px 9px;
  }
  .brand small { display: none; }
  input, select, textarea { font-size: 16px; } /* keeps iOS from auto-zooming on focus */
  input[type="color"] { width: 40px; height: 32px; }
  input[type="number"] { width: 100%; }
  .field-row { flex-wrap: wrap; }
  .statusbar {
    font-size: 10px;
    gap: 10px;
    overflow-x: auto;
    white-space: nowrap;
  }
  .modal { width: 94vw; }
  .modal textarea { min-height: 160px; }
}
@media (max-width: 880px) and (pointer: coarse) {
  .tool-btn, .layer-row .mini-btn { min-height: 40px; }
  .layer-row .mini-btn { padding: 6px 8px; font-size: 14px; }
}