:root {
  --bg: #0d0c14;
  --panel: #14131e;
  --panel2: #1b1a28;
  --line: #2a2840;
  --line2: #3a3858;
  --text: #ecebf5;
  --muted: #8f8cab;
  --accent: #35e0c2;
  --accent2: #1fb39b;
  --accent-ink: #062a24;
  --warn: #ff7a8a;
  --chip: #232235;
  --r: 10px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  display: grid; grid-template-rows: auto 1fr auto; min-height: 100vh;
}
button, input, select, textarea { font: inherit; color: inherit; }
button {
  white-space: nowrap;
  background: var(--panel2); border: 1px solid var(--line2); border-radius: 8px; padding: 6px 12px; cursor: pointer;
  transition: background .12s, border-color .12s;
}
button:hover { border-color: var(--accent2); }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button.accent { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 650; }
button.accent:hover { background: #5ff0d6; }
button.ghost { background: transparent; }
button.small { padding: 3px 9px; font-size: 12.5px; }
button.big { width: 100%; padding: 11px; font-size: 15px; }
button.icon { width: 34px; height: 34px; padding: 0; display: inline-grid; place-items: center; }
button.icon svg { width: 16px; height: 16px; fill: currentColor; }
input[type=text], input[type=search], input[type=number], select, textarea {
  background: var(--panel2); border: 1px solid var(--line2); border-radius: 8px; padding: 6px 9px; width: 100%;
}
textarea { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 12px; resize: vertical; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 12.5px; }
.muted { color: var(--muted); }
.spacer { flex: 1; }
.err { color: var(--warn); min-height: 1.2em; margin: 6px 0; }

/* header */
.top { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--line); background: var(--panel); }
#logo { image-rendering: pixelated; height: 30px; }
.tag { color: var(--muted); font-size: 13px; }

/* layout */
.layout { display: grid; grid-template-columns: 286px minmax(0, 1fr) 316px; min-height: 0; }
.lib, .insp { background: var(--panel); min-height: 0; display: flex; flex-direction: column; }
.lib { border-right: 1px solid var(--line); }
.insp { border-left: 1px solid var(--line); }
.center { padding: 14px 16px 20px; min-width: 0; overflow: auto; }

/* library */
.search { padding: 12px 12px 6px; }
.chips-row { display: flex; flex-wrap: wrap; gap: 4px; padding: 4px 12px 10px; border-bottom: 1px solid var(--line); }
.chips-row button { background: transparent; border-color: transparent; padding: 3px 9px; font-size: 13px; color: var(--muted); }
.chips-row button[aria-pressed=true] { background: var(--chip); color: var(--text); border-color: var(--line2); }
.lib-grid { overflow: auto; padding: 10px; display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: max-content; gap: 7px; align-content: start; flex: 1; min-height: 0; }
.tile { background: #0f0e17; border: 1px solid var(--line); border-radius: 8px; padding: 0; overflow: hidden; display: flex; flex-direction: column; text-align: left; }
.tile canvas { width: 100%; height: auto; aspect-ratio: 1; flex: none; image-rendering: pixelated; display: block; }
.tile span { flex: none; font-size: 11.5px; padding: 3px 6px 4px; color: #c9c7dc; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; border-top: 1px solid var(--line); background: var(--panel2); }
.tile[aria-current=true] { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.tile[aria-current=true] span { color: var(--text); }

/* prompt */
.prompt-bar { display: flex; align-items: center; gap: 8px; background: var(--panel); border: 1px solid var(--line2); border-radius: 12px; padding: 7px 7px 7px 14px; }
.prompt-bar input { border: 0; background: transparent; font-size: 16px; padding: 6px 2px; }
.prompt-bar input:focus-visible { outline: none; }
.prompt-bar:focus-within { border-color: var(--accent2); }
.spark { color: var(--accent); font-size: 18px; }
.readas { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; min-height: 30px; margin: 8px 2px 10px; font-size: 13px; color: var(--muted); }
.readas .chip { background: var(--chip); border: 1px solid var(--line2); border-radius: 999px; padding: 1px 10px; color: var(--text); font-size: 12.5px; }
.readas .chip.form { border-color: var(--accent2); }
.readas .chip.color { border-style: dashed; }
.readas .chip.mod { color: #c7c4e0; }
.readas button.word { padding: 1px 9px; border-radius: 999px; font-size: 12.5px; }

/* stage */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }
.stage-head { display: flex; align-items: center; gap: 10px; padding: 10px 12px; flex-wrap: wrap; }
.stage-head h2 { margin: 0; font-size: 15.5px; }
.meta { color: var(--muted); font-size: 12px; }
.seg { display: inline-flex; background: var(--panel2); border: 1px solid var(--line2); border-radius: 9px; padding: 2px; }
.seg button { border: 0; background: transparent; padding: 4px 10px; border-radius: 7px; font-size: 12.5px; color: var(--muted); }
.seg button[aria-pressed=true] { background: #2d2b44; color: var(--text); }
.seg.small button { padding: 3px 8px; }
.bg-swatches { display: inline-flex; gap: 4px; }
.bg-swatches button { width: 22px; height: 22px; padding: 0; border-radius: 6px; border: 2px solid var(--line2); }
.bg-swatches button[aria-pressed=true] { border-color: var(--accent); }
.stage-wrap { position: relative; background: #08070d; display: grid; place-items: center; min-height: 240px; height: min(52vh, 520px); overflow: hidden; }
#view { image-rendering: pixelated; display: block; touch-action: none; }
.hint { position: absolute; left: 10px; bottom: 8px; font-size: 11.5px; color: #8f8cab; background: #0d0c14cc; padding: 2px 8px; border-radius: 6px; pointer-events: none; }
.timeline { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-top: 1px solid var(--line); }
.strip { display: flex; gap: 3px; overflow-x: auto; flex: 1; padding: 2px; scrollbar-width: thin; }
.strip canvas { width: 30px; height: 30px; image-rendering: pixelated; background: #0b0a12; border: 1px solid var(--line); border-radius: 5px; cursor: pointer; flex: none; }
.strip canvas.on { border-color: var(--accent); }
.strip canvas.impact { box-shadow: inset 0 -2px 0 #ffcf5a; }

.vars-head { display: flex; align-items: center; justify-content: space-between; margin: 16px 2px 8px; color: var(--muted); font-size: 13px; }
.vars { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; }
.vars button { padding: 0; aspect-ratio: 1; background: #0f0e17; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.vars button[aria-current=true] { border-color: var(--accent); }
.vars canvas { width: 100%; height: 100%; image-rendering: pixelated; display: block; }

/* inspector */
.insp-scroll { overflow: auto; flex: 1; min-height: 0; }
.insp-foot { padding: 12px; border-top: 1px solid var(--line); }
.sec { padding: 12px 14px 14px; border-bottom: 1px solid var(--line); }
.sec h4 { margin: 0 0 10px; font-size: 11.5px; letter-spacing: .12em; color: var(--muted); display: flex; justify-content: space-between; font-weight: 650; }
.ramps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 5px; margin-bottom: 10px; }
.ramp { height: 20px; padding: 0; border-radius: 5px; border: 2px solid transparent; overflow: hidden; display: flex; }
.ramp i { flex: 1; }
.ramp[aria-pressed=true] { border-color: var(--accent); }
.slot-row { display: flex; gap: 4px; margin-bottom: 8px; }
.slot-row button { font-size: 12px; padding: 2px 8px; color: var(--muted); }
.slot-row button[aria-pressed=true] { color: var(--text); border-color: var(--accent2); }
.field { margin: 8px 0; }
.field label, .field .lab { display: flex; justify-content: space-between; font-size: 12.5px; margin-bottom: 4px; color: #d3d1e6; }
.field .val { color: var(--muted); font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
input[type=range] { width: 100%; accent-color: var(--accent); margin: 0; }
.check { display: flex; align-items: center; gap: 8px; font-size: 13px; margin: 8px 0; cursor: pointer; }
.check input { accent-color: var(--accent); width: 15px; height: 15px; }
.row { display: flex; gap: 8px; align-items: center; }
.row.end { justify-content: flex-end; margin-top: 12px; }
.row > input[type=number] { width: 90px; }
.layer { border: 1px solid var(--line); border-radius: 9px; margin-bottom: 6px; background: var(--panel2); }
.layer-head { display: flex; align-items: center; gap: 6px; padding: 5px 6px; }
.layer-head .nm { flex: 1; font-size: 13px; cursor: pointer; display: flex; gap: 6px; align-items: baseline; min-width: 0; }
.layer-head .nm small { color: var(--muted); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.layer-head button { padding: 2px 6px; font-size: 12px; background: transparent; border-color: transparent; color: var(--muted); }
.layer-head button:hover { color: var(--text); border-color: var(--line2); }
.layer.off .nm { opacity: .45; }
.mini-ramp { width: 26px; height: 9px; border-radius: 3px; display: flex; overflow: hidden; flex: none; }
.mini-ramp i { flex: 1; }
.layer-body { padding: 4px 10px 10px; border-top: 1px solid var(--line); }
.layer-body .field { margin: 6px 0; }
.pair { display: flex; gap: 6px; }
.add-row { display: flex; gap: 6px; margin-top: 8px; }

/* dialogs */
.dlg { background: var(--panel); color: var(--text); border: 1px solid var(--line2); border-radius: 14px; padding: 18px 20px; width: min(560px, calc(100vw - 32px)); }
.dlg.wide { width: min(760px, calc(100vw - 32px)); }
.dlg::backdrop { background: #05040acc; }
.dlg h3 { margin: 0 0 12px; font-size: 17px; }
.upload-row { display: grid; grid-template-columns: 70px 1fr auto; gap: 8px; align-items: center; margin: 8px 0; }
.help { padding-left: 20px; } .help li { margin: 6px 0; }
.dl-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.dl-item { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; display: flex; flex-direction: column; gap: 8px; }
.dl-item b { font-size: 13.5px; }
.dl-item p { margin: 0; font-size: 12px; color: var(--muted); }
.dl-item .row { flex-wrap: wrap; }
.dl-item select { width: auto; }
.dl-item.full { grid-column: 1 / -1; }
progress { width: 100%; accent-color: var(--accent); }

#toast { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%) translateY(20px); background: #24223a; border: 1px solid var(--line2); padding: 8px 16px; border-radius: 10px; opacity: 0; pointer-events: none; transition: .2s; z-index: 10; }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.foot { display: flex; gap: 10px; align-items: center; padding: 8px 16px; border-top: 1px solid var(--line); background: var(--panel); font-size: 12.5px; color: var(--muted); }
.foot b { color: var(--text); }
.foot a { color: var(--accent); }

@media (max-width: 1180px) {
  .layout { grid-template-columns: 240px minmax(0, 1fr) 290px; }
  .lib-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  body { display: block; }
  .layout { display: flex; flex-direction: column; }
  .center { order: 1; padding: 12px 16px; overflow: visible; }
  .insp { order: 2; border-left: 0; border-top: 1px solid var(--line); }
  .lib { order: 3; border-right: 0; border-top: 1px solid var(--line); }
  .lib-grid { grid-template-columns: repeat(4, 1fr); max-height: 520px; }
  .insp-scroll { overflow: visible; }
  .vars { grid-template-columns: repeat(3, 1fr); }
  .stage-wrap { height: auto; min-height: 0; aspect-ratio: 16 / 10; }
  .tag { display: none; }
  .dl-grid { grid-template-columns: 1fr; }
}