:root{--bg:#0d1117;--panel:#161b22;--surface:#1c2129;--border:#30363d;--text:#e6edf3;--muted:#8b949e;--accent:#58a6ff;--ok:#3fb950;--danger:#f85149;--radius:8px}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:"Segoe UI",system-ui,sans-serif;font-size:14px;height:100vh;overflow:hidden;user-select:none}
header{display:flex;align-items:center;gap:10px;padding:8px 16px;border-bottom:1px solid var(--border);background:var(--panel);flex-wrap:wrap}
header h1{font-size:15px;font-weight:600;white-space:nowrap}
#stream-label{font-size:10px;background:var(--surface);padding:2px 6px;border-radius:4px;color:var(--muted)}
#conn{margin-left:auto;display:flex;align-items:center;gap:5px;font-size:11px;color:var(--muted)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--danger);transition:background .3s}
.dot.on{background:var(--ok)}
.layout{display:flex;height:calc(100vh - 41px)}
aside{width:320px;min-width:280px;border-right:1px solid var(--border);background:var(--panel);overflow-y:auto;padding:10px;display:flex;flex-direction:column;gap:10px}
aside::-webkit-scrollbar{width:4px}
aside::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:10px}
.card h2{font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:6px}
.card.grow{flex:1;overflow-y:auto}
.tabs{display:flex;gap:3px;margin-bottom:8px}
.tab{flex:1;padding:5px 0;border:1px solid var(--border);background:var(--bg);color:var(--muted);border-radius:5px;cursor:pointer;font-size:11px;text-align:center;transition:all .15s}
.tab:hover{color:var(--text)}
.tab.active{background:var(--accent);color:#000;border-color:var(--accent);font-weight:600}
.tab-body{display:none}
.tab-body.active{display:block}
label{display:block;font-size:10px;color:var(--muted);margin-bottom:2px}
input[type="text"],input[type="url"],input[type="number"],select{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);padding:6px 8px;border-radius:5px;font-size:12px;outline:none;transition:border-color .2s}
input:focus,select:focus{border-color:var(--accent)}
select{cursor:pointer}
select option{background:var(--bg);color:var(--text)}
input[type="color"]{width:100%;height:28px;border:1px solid var(--border);border-radius:5px;cursor:pointer;background:var(--bg);padding:2px}
input[type="range"]{width:100%;accent-color:var(--accent);height:3px}
.hint{font-size:10px;color:var(--muted);margin:4px 0 6px}
.hint b{color:var(--accent)}
.inline-row{display:flex;gap:6px;margin:5px 0}
.field{flex:1}
.field label{font-size:9px}
.check-row{display:flex;gap:12px;margin:5px 0;font-size:11px;color:var(--muted)}
.check-row input{accent-color:var(--accent)}
.btn{display:flex;align-items:center;justify-content:center;gap:4px;padding:6px 10px;border:1px solid var(--border);border-radius:5px;background:var(--surface);color:var(--text);font-size:11px;cursor:pointer;transition:background .15s;width:100%}
.btn:hover{background:var(--border)}
.btn.primary{background:var(--accent);color:#000;border-color:var(--accent);font-weight:600}
.btn.primary:hover{background:#79c0ff}
.btn.danger{border-color:var(--danger);color:var(--danger)}
.btn.danger:hover{background:var(--danger);color:#fff}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:5px;margin-bottom:5px}
.drop-zone{border:2px dashed var(--border);border-radius:8px;padding:18px 8px;text-align:center;color:var(--muted);cursor:pointer;transition:all .2s}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--accent);background:rgba(88,166,255,.06)}
.drop-icon{font-size:24px;margin-bottom:3px;line-height:1}
.upload-list{margin-top:6px;font-size:10px;color:var(--muted)}
.upload-item{padding:2px 0;border-bottom:1px solid var(--border);display:flex;justify-content:space-between}
.upload-item .ok{color:var(--ok)}
.upload-item .fail{color:var(--danger)}
.edit-group{margin:6px 0;padding:6px;background:var(--bg);border-radius:5px;border:1px solid var(--border)}
.edit-group label{font-size:9px}

/* Element list - responsive */
#list{display:flex;flex-direction:column;gap:3px}
.row{display:flex;align-items:center;gap:2px;padding:4px 4px;background:var(--bg);border:1px solid var(--border);border-radius:5px;font-size:10px;transition:opacity .2s;min-width:0}
.row.off{opacity:.35}
.row .icon{font-size:10px;flex-shrink:0;width:20px;text-align:center;font-weight:600;color:var(--accent)}
.row .name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);min-width:0;font-size:10px}
.row .vol-wrap{display:flex;align-items:center;gap:2px;flex-shrink:0}
.row .vol{width:40px}
.row .vol-icon{font-size:9px;color:var(--muted);flex-shrink:0}
.row .layer-badge{font-size:8px;background:var(--accent);color:#000;padding:1px 3px;border-radius:3px;font-weight:700;flex-shrink:0;min-width:14px;text-align:center}
.ibtn{background:none;border:none;color:var(--muted);cursor:pointer;font-size:12px;padding:2px 3px;border-radius:3px;transition:color .15s;flex-shrink:0;line-height:1}
.ibtn:hover{color:var(--text)}
.ibtn.on{color:var(--ok)}
.ibtn.edit:hover{color:var(--accent)}
.ibtn.danger:hover{color:var(--danger)}
.ibtn.loop.on{color:var(--ok)}
.empty{text-align:center;color:var(--muted);font-size:11px;padding:16px 0}
main{flex:1;display:flex;align-items:center;justify-content:center;padding:16px;overflow:hidden}
.canvas-wrap{width:100%;max-width:calc((100vh - 90px)*16/9);aspect-ratio:16/9;position:relative}
#canvas{position:relative;width:100%;height:100%;background:#05070c;background-image:linear-gradient(rgba(88,166,255,.06)1px,transparent 1px),linear-gradient(90deg,rgba(88,166,255,.06)1px,transparent 1px);background-size:5% 5%;border:1px solid var(--border);overflow:hidden;border-radius:4px}
.canvas-note{text-align:center;font-size:9px;color:var(--muted);margin-top:4px}
.el{position:absolute;touch-action:none}
.media-wrap{width:100%;height:100%;position:relative;outline:1px dashed rgba(88,166,255,.6);cursor:move;overflow:hidden;border-radius:2px}
.media-wrap:hover{outline-color:var(--accent)}
.el.resizing .media-wrap{outline-style:solid}
.media-wrap::after{content:'';position:absolute;right:0;bottom:0;width:10px;height:10px;background:var(--accent);border-radius:2px 0 2px 0;opacity:.6;cursor:nwse-resize}
.el img,.el video{width:100%;height:100%;object-fit:fill;display:block;pointer-events:none}
.el.hidden-el{opacity:.25}
.el.is-audio .media-wrap{background:linear-gradient(135deg,#1a1e2e,#121520);display:flex;align-items:center;justify-content:center}
.audio-badge{font-size:16px;opacity:.7}
.el.is-text .media-wrap{display:flex;align-items:center;justify-content:center;text-align:center;word-wrap:break-word;overflow:hidden;padding:2%;line-height:1.2}
.tag{position:absolute;top:2px;left:2px;background:rgba(0,0,0,.65);padding:1px 5px;border-radius:3px;font-size:8px;color:#ccc;max-width:calc(100% - 4px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;pointer-events:none}