:root{
  --bg:#f5f6f3; --panel:#fff; --ink:#1d2320; --muted:#6b736e; --line:#dfe3de;
  --accent:#1f6f43; --accent-ink:#fff; --hl:#fff4d6; --danger:#b3261e;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#121513; --panel:#1b1f1c; --ink:#e7ebe8; --muted:#9aa39d; --line:#2e3430; --accent:#3fa46c; --hl:#3a3320; --danger:#ff8a80; }
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,"Hiragino Sans","Yu Gothic UI","Meiryo",sans-serif;font-size:15px}
.bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 16px;padding-top:max(10px,env(safe-area-inset-top));background:var(--accent);color:var(--accent-ink);position:sticky;top:0;z-index:20}
.bar h1{font-size:17px;margin:0}
.bar .btn.ghost{color:#fff;border-color:rgba(255,255,255,.5);background:transparent}
.bar-actions{display:flex;gap:6px}
main{padding:12px 16px 40px;max-width:1400px;margin:0 auto}
.btn{appearance:none;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:8px;padding:9px 14px;font:inherit;cursor:pointer;display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
.btn:hover{filter:brightness(.97)}
.btn:disabled{opacity:.45;cursor:default}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn.ghost{background:transparent}
.btn.small{padding:5px 10px;font-size:13px}
.drop{border:2px dashed var(--line);border-radius:14px;padding:48px 16px;text-align:center;background:var(--panel)}
.drop.over{border-color:var(--accent);background:var(--hl)}
.hint{color:var(--muted);font-size:12.5px;margin:6px 0}
.work{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:16px;align-items:start}
@media (max-width:900px){.work{grid-template-columns:1fr}}
.left,.right{display:flex;flex-direction:column;gap:12px;min-width:0}
.stage{position:relative;background:#000;border-radius:10px;overflow:hidden;display:flex;justify-content:center}
@media (max-width:900px){.stage{position:sticky;top:48px;z-index:10}}
.stage video{display:block;max-width:100%;max-height:62vh}
.stage canvas{position:absolute;pointer-events:none}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px}
details.panel summary{cursor:pointer;font-weight:600}
.row{display:flex;gap:8px;align-items:center;margin-top:8px}
.row.wrap{flex-wrap:wrap}
.row label{display:flex;flex-direction:column;font-size:12.5px;color:var(--muted);gap:3px;flex:1;min-width:0}
select,input[type=number],textarea,input.time{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:6px}
select{width:100%}
label.chk{flex-direction:row!important;align-items:center;gap:6px;color:var(--ink)!important;font-size:13.5px}
label.inline{display:inline-flex;align-items:center;gap:4px;font-size:13px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px;margin-top:10px}
.grid2 label{display:flex;flex-direction:column;font-size:12.5px;color:var(--muted);gap:3px}
.grid2 input[type=color]{width:100%;height:32px;border:1px solid var(--line);border-radius:6px;background:none;padding:2px}
.grid2 span{font-size:11px}
.presets{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.presets button{border-radius:6px;padding:6px 10px;font-weight:700;border:1px solid var(--line);cursor:pointer;font-size:13px}
.progress{height:8px;background:var(--line);border-radius:4px;overflow:hidden;margin-top:10px}
.progress>div{height:100%;width:0;background:var(--accent);transition:width .2s}
.status{font-size:13px;color:var(--muted);margin:6px 0 0;min-height:1.2em;white-space:pre-wrap}
.status.err{color:var(--danger)}
.list-head{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.list-head .row{margin:0}
.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;max-height:60vh;overflow:auto}
@media (max-width:900px){.list{max-height:none}}
.seg{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:6px 8px}
.seg.active{background:var(--hl);border-color:var(--accent)}
.seg-top{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--muted)}
.seg-top .spacer{flex:1}
input.time{width:6.4em;padding:3px 5px;font-size:12.5px;font-variant-numeric:tabular-nums}
.t-btn{border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:14px;padding:3px 5px;border-radius:4px}
.t-btn:hover{background:var(--line);color:var(--ink)}
.t-btn.danger:hover{color:var(--danger)}
.txt{width:100%;margin-top:4px;resize:vertical;font-size:15px;line-height:1.4;border:1px solid transparent;background:transparent}
.txt:focus{border-color:var(--line);background:var(--bg);outline:none}
.seg.long .txt{color:var(--danger)}
.export .row{margin-top:8px}
[hidden]{display:none!important}
.bar h1{white-space:nowrap}
@media (max-width:520px){.wide{display:none}}