:root{
  --bg:#0d1117; --panel:#161c26; --panel2:#1d2532; --line:#2a3444;
  --ink:#e8eef7; --muted:#8b9bb4; --accent:#f0a02a; --brand:#1d3a6b;
  --ok:#1e8a5a; --bad:#c8321f;
}
*{box-sizing:border-box;margin:0;padding:0}
/* the hidden attribute loses to any rule that sets display, and #chat and
   #mediaPane both do, so panels would stack instead of swapping */
[hidden]{display:none !important}
body{background:var(--bg);color:var(--ink);font:14px/1.45 Inter,system-ui,-apple-system,sans-serif;height:100vh;overflow:hidden}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit;background:var(--panel2);border:1px solid var(--line);border-radius:6px;padding:7px 9px;width:100%}
input:focus,textarea:focus{outline:none;border-color:var(--accent)}

#app{display:grid;grid-template-columns:210px 1fr 330px;height:100vh}
.col{display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--line)}
.col:last-child{border:none;border-left:1px solid var(--line)}
.hd{padding:10px 12px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;flex-shrink:0}
.hd h2{font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600}
.hd .sp{margin-left:auto}
.scroll{overflow-y:auto;flex:1;min-height:0}

/* scenes */
.scene{padding:8px 10px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;gap:8px;align-items:center}
.scene:hover{background:var(--panel)}
.scene.sel{background:var(--panel2);box-shadow:inset 3px 0 0 var(--accent)}
.scene .n{font-size:11px;color:var(--muted);width:16px;flex-shrink:0}
.scene .t{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.scene .d{font-size:11px;color:var(--muted)}

/* stage */
#stagewrap{flex:1;display:flex;align-items:center;justify-content:center;background:#07090d;min-height:0;padding:14px}
#stage{position:relative;background:#000;overflow:hidden;box-shadow:0 8px 40px rgba(0,0,0,.6)}
#stage video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
#grade{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(rgba(20,30,50,.10),rgba(20,30,50,.10));
  box-shadow:inset 0 0 calc(var(--H)*.28) rgba(0,0,0,.42)}
.ov{position:absolute;will-change:transform,opacity}
.ov .box{border-radius:calc(var(--H)*.012)}

/* transport */
#bar{display:flex;align-items:center;gap:10px;padding:8px 12px;border-top:1px solid var(--line);flex-shrink:0}
#scrub{flex:1;-webkit-appearance:none;height:4px;border-radius:3px;background:var(--line);padding:0;border:none}
#scrub::-webkit-slider-thumb{-webkit-appearance:none;width:13px;height:13px;border-radius:50%;background:var(--accent);cursor:pointer}
.tc{font-variant-numeric:tabular-nums;color:var(--muted);font-size:12px}
.btn{background:var(--panel2);border:1px solid var(--line);border-radius:6px;padding:6px 11px;font-size:13px}
.btn:hover{border-color:var(--accent)}
.btn.pri{background:var(--accent);color:#14181f;border-color:var(--accent);font-weight:600}
.btn.pri:hover{filter:brightness(1.08)}
.btn:disabled{opacity:.45;cursor:not-allowed}

/* chat */
#chat{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px;min-height:0}
.msg{padding:9px 11px;border-radius:9px;font-size:13px;max-width:95%;white-space:pre-wrap}
.msg.me{background:var(--brand);align-self:flex-end}
.msg.ai{background:var(--panel2)}
.msg.err{background:#40201c;color:#ffb4a8}
.msg.sys{background:none;color:var(--muted);font-size:12px;padding:0 2px}
#composer{padding:10px;border-top:1px solid var(--line);flex-shrink:0}
#composer textarea{resize:none;height:66px}
.row{display:flex;gap:7px;margin-top:7px}
.hint{color:var(--muted);font-size:11.5px;padding:0 12px 10px}

.tag{display:inline-block;font-size:10.5px;padding:1px 6px;border-radius:4px;background:var(--panel2);color:var(--muted);border:1px solid var(--line)}
.spin{width:13px;height:13px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:sp .7s linear infinite;display:inline-block;vertical-align:-2px}
@keyframes sp{to{transform:rotate(360deg)}}
.empty{padding:26px 16px;text-align:center;color:var(--muted);font-size:13px}

/* a block can be dragged to place it; double-click puts it back in the stack */
.ov.drag{cursor:grab}
.ov.drag:hover{outline:1px dashed rgba(240,160,42,.55);outline-offset:4px}
.ov.drag:active{cursor:grabbing}

/* scene inspector under the stage */
#insp{border-top:1px solid var(--line);padding:9px 12px;display:flex;gap:12px;align-items:center;flex-shrink:0;flex-wrap:wrap}
#insp .f{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--muted)}
#insp input[type=number]{width:64px;padding:4px 6px}
#insp input[type=text]{min-width:220px;padding:4px 8px}
#insp .sp{margin-left:auto}
.sw{display:flex;gap:5px}
.sw button{border:1px solid var(--line);border-radius:5px;padding:4px 9px;font-size:12px;background:var(--panel2)}
.sw button.on{border-color:var(--accent);color:var(--accent)}
.chk{display:flex;gap:6px;align-items:center;cursor:pointer;user-select:none}
.chk input{width:auto}
#saved{font-size:11.5px;color:var(--muted)}

#mediaPane{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden}
/* explicit row height: aspect-ratio on a grid item whose row is auto-sized
   resolves against a track that depends on it, and the cards end up overlapping */
#mresults{overflow-y:auto;flex:1;display:grid;grid-template-columns:1fr 1fr;
  grid-auto-rows:158px;gap:6px;padding:8px;align-content:start}
.mcard{position:relative;border-radius:6px;overflow:hidden;cursor:pointer;
  border:1px solid var(--line);background:#000;height:158px}
.mcard img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}
.mcard .meta{pointer-events:none}
.mcard:hover{border-color:var(--accent)}
.mcard .meta{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(0,0,0,.8));
  color:#fff;font-size:10px;padding:12px 5px 4px;display:flex;justify-content:space-between}
.mcard.on{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
#tabs button{padding:4px 12px}

/* editing text in place */
.ov .box[contenteditable="true"]{outline:2px solid var(--accent);outline-offset:3px;cursor:text;
  background:rgba(0,0,0,.35);min-width:2em}
.ov .row-i [contenteditable="true"]{outline:1px solid var(--accent);outline-offset:2px}

/* the graphics library shares the footage grid */
#assetPane{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden}
#aresults{overflow-y:auto;flex:1;display:grid;grid-template-columns:1fr 1fr;
  grid-auto-rows:120px;gap:6px;padding:8px;align-content:start}
#aresults .mcard{height:120px;background:#0a0e14}
#aresults .mcard img{object-fit:contain;padding:6px}
.mcard .keep{position:absolute;top:5px;right:5px;background:rgba(10,14,20,.82);
  border:1px solid var(--line);border-radius:5px;padding:2px 7px;font-size:10.5px;color:var(--ink)}
.mcard .keep:hover{border-color:var(--accent);color:var(--accent)}
.mcard .keep:disabled{opacity:.7}

/* a graphic on the frame is sized by its corner, not by a font size */
.ov .hdl{position:absolute;right:-7px;bottom:-7px;width:14px;height:14px;border-radius:3px;
  background:var(--accent);border:2px solid #14181f;cursor:nwse-resize;opacity:0;transition:opacity .12s}
.ov:hover .hdl{opacity:1}

/* the way in */
#gate{position:fixed;inset:0;z-index:50;background:#07090d;display:flex;align-items:center;justify-content:center}
.gatebox{width:330px;display:flex;flex-direction:column;gap:9px;text-align:center}
.gatebox h1{font-size:21px;letter-spacing:-.02em}
.gatebox p{color:var(--muted);font-size:13px;margin-bottom:6px}
.gatebox input{text-align:center}
.gatebox #gateMsg{font-size:12px;color:var(--muted);min-height:16px}
.gatebox #gateMsg.bad{color:#ffb4a8}
.gatebox a{color:var(--muted);font-size:11.5px;text-decoration:none}
.gatebox a:hover{color:var(--accent)}