:root{--bg:#F0F0F6;--stage:#E0E0E5;--card:#FFFFFF;--ink:#181819;--soft:#5E5E6B;--line:#D6D6DE;--chip:#E8E8EE;--chipOn:#181819;--chipOnInk:#F0F0F6;--btn:#181819;--btnInk:#F0F0F6;--ring:#8845E6;--tip:#EAFF80;--tipInk:#181819;
  --ui:'Matter','Figtree',system-ui,-apple-system,'Segoe UI',sans-serif;
  box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#181819;--stage:#28282A;--card:#202022;--ink:#F0F0F6;--soft:#B4B4C3;--line:#38383C;--chip:#2A2A2D;--chipOn:#F0F0F6;--chipOnInk:#181819;--btn:#EAFF80;--btnInk:#181819;--ring:#EAFF80}}
:root[data-theme="dark"]{--bg:#181819;--stage:#28282A;--card:#202022;--ink:#F0F0F6;--soft:#B4B4C3;--line:#38383C;--chip:#2A2A2D;--chipOn:#F0F0F6;--chipOnInk:#181819;--btn:#EAFF80;--btnInk:#181819;--ring:#EAFF80}
html{scroll-padding-top:env(safe-area-inset-top,0px);height:100%}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;height:100%;background:var(--bg);color:var(--ink);font:400 14px/1.4 var(--ui);-webkit-font-smoothing:antialiased}
button,select,input{font:inherit;color:inherit}
button{cursor:pointer}
button:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--ring);outline-offset:2px}
.app{display:grid;grid-template-columns:minmax(0,1fr) 420px;height:100%}
/* stage */
.stage{display:flex;flex-direction:column;min-height:0;min-width:0;padding:16px 24px 18px;background:var(--stage)}
.top{display:flex;align-items:center;gap:14px;margin-bottom:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.brand svg{height:20px;width:auto;flex:none}
.brand span{color:var(--soft)}
.ratios{display:flex;gap:4px;overflow-x:auto;max-width:100%;padding:2px}
.rt{display:inline-flex;align-items:center;gap:7px;border:0;background:transparent;border-radius:999px;padding:6px 11px 6px 9px;font-size:13px;white-space:nowrap}
.rt i{display:block;border:1.5px solid currentColor;border-radius:3px;opacity:.75}
.rt.on{background:var(--chipOn);color:var(--chipOnInk)}
.wrap{flex:1;min-height:0;display:flex;align-items:center;justify-content:center}
#cv{display:block;border-radius:4px;box-shadow:0 1px 0 rgba(0,0,0,.06),0 12px 40px -18px rgba(0,0,0,.35)}
.transport{display:flex;align-items:center;gap:12px;margin-top:14px}
.ib{width:38px;height:38px;border-radius:50%;border:0;background:var(--chipOn);color:var(--chipOnInk);display:grid;place-items:center;padding:0;flex:none}
.ib svg{width:16px;height:16px}
.ib .i-play{display:none}.ib[aria-pressed="false"] .i-play{display:block}.ib[aria-pressed="false"] .i-pause{display:none}
#scrub{flex:1;min-width:0;accent-color:var(--ink)}
.time{font-variant-numeric:tabular-nums;color:var(--soft);font-size:13px;min-width:78px;text-align:right}
.tsel{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:6px 10px;font-size:13px;width:auto}
.actions{display:flex;align-items:center;gap:10px;margin-top:14px;flex-wrap:wrap}
.primary{background:var(--btn);color:var(--btnInk);border:0;border-radius:999px;padding:12px 24px;font-weight:600;display:inline-flex;align-items:center;gap:10px}
.primary:disabled{opacity:.45;cursor:default}
.primary kbd{font:500 11px var(--ui);opacity:.65;border:1px solid currentColor;border-radius:5px;padding:1px 6px}
.ghost{background:transparent;border:1px solid var(--line);border-radius:999px;padding:11px 16px}
.ghost:disabled{opacity:.4;cursor:default}
.info{margin-left:auto;color:var(--soft);font-size:13px}
.looks{margin-top:14px;display:flex;align-items:center;gap:12px;min-width:0}
.looks>span{color:var(--soft);font-size:13px;flex:none}
.lookList{display:flex;gap:8px;overflow-x:auto;padding:2px}
.look{position:relative;flex:none;border:0;padding:0;background:none;border-radius:6px}
.look img{display:block;height:46px;width:auto;border-radius:6px;border:1px solid var(--line)}
.look .x{position:absolute;top:-6px;right:-6px;width:18px;height:18px;border-radius:50%;background:var(--ink);color:var(--bg);font-size:12px;line-height:18px;text-align:center;display:none}
.look:hover .x,.look:focus-within .x{display:block}
/* panel */
.panel{display:flex;flex-direction:column;min-height:0;border-left:1px solid var(--line);background:var(--bg)}
.scroll{flex:1;overflow-y:auto;padding:18px 20px 12px}
.tip{display:flex;gap:10px;align-items:flex-start;background:var(--tip);color:var(--tipInk);border-radius:14px;padding:12px 14px;margin-bottom:16px;font-size:13px}
.tip p{margin:0}.tip button{margin-left:auto;background:none;border:0;font-size:18px;line-height:1;padding:0 2px;color:inherit}
.hd{display:flex;align-items:center;justify-content:space-between;margin:2px 0 12px}
.hd h2{margin:0;font-size:17px;font-weight:700}
.link{background:none;border:0;padding:2px 0;color:var(--soft);text-decoration:underline;font-size:13px}
.link:disabled{opacity:.4;text-decoration:none;cursor:default}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:6px 14px;margin-bottom:14px}
.blk{padding:12px 0;border-bottom:1px solid var(--line)}
.blk:last-child{border-bottom:0}
.rowh{display:flex;align-items:center;gap:10px}
.rowh .t{flex:1;min-width:0}
.rowh b{display:block;font-weight:600}
.rowh small{display:block;color:var(--soft);font-size:12.5px}
.lk{width:32px;height:32px;display:grid;place-items:center;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--soft);padding:0;flex:none}
.lk svg{width:16px;height:16px}
.lk[aria-pressed="true"]{background:var(--chipOn);color:var(--chipOnInk);border-color:var(--chipOn)}
.lk[aria-pressed="true"] .lk-off,.lk[aria-pressed="false"] .lk-on{display:none}
.cmain{flex:1;min-width:0;display:flex;align-items:center;gap:12px;background:none;border:0;padding:0;text-align:left}
.cdot{width:34px;height:38px;border-radius:48%/54%;background:var(--c);border:1px solid rgba(128,128,140,.45);flex:none}
.chev{margin-left:auto;width:8px;height:8px;border-right:1.6px solid var(--soft);border-bottom:1.6px solid var(--soft);transform:rotate(45deg);transition:transform .15s;margin-right:6px}
.crow.open .chev{transform:rotate(-135deg)}
.cpanel{padding-top:12px}
.cpanel[hidden]{display:none}
.gl{margin:10px 0 6px;color:var(--soft);font-size:12.5px}
.gl:first-child{margin-top:0}
.sw{display:flex;flex-wrap:wrap;gap:8px}
.s{position:relative;width:32px;height:36px;border-radius:48%/54%;border:1px solid rgba(128,128,140,.45);background:var(--c);padding:0}
.s.on{outline:2px solid var(--ink);outline-offset:2px}
.s.pt::after{content:"";position:absolute;right:-3px;top:-3px;width:11px;height:11px;border-radius:50%;background:var(--ink);border:2px solid var(--card)}
.s.pl.off{opacity:.2}
.legend{margin:10px 0 2px;color:var(--soft);font-size:12.5px;display:flex;align-items:center;gap:7px}
.legend i{width:10px;height:10px;border-radius:50%;background:var(--ink);display:inline-block}
.swap{display:flex;justify-content:center;margin:-2px 0}
.swapb{background:var(--chip);border:0;border-radius:999px;padding:5px 12px;font-size:12.5px}
.seg{display:flex;background:var(--chip);border-radius:999px;padding:3px;gap:2px}
.seg button{flex:1;border:0;background:transparent;border-radius:999px;padding:6px 8px;font-size:13px}
.seg button.on{background:var(--chipOn);color:var(--chipOnInk)}
.pnote{margin:8px 0 0;color:var(--soft);font-size:12.5px}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px 7px;margin-top:10px}
.pgh{grid-column:1/-1;font-weight:600;font-size:13px;margin-top:6px}.pgh:first-child{margin-top:0}.pgh small{font-weight:400;color:var(--soft);margin-left:6px}
.pcard{border:0;background:none;padding:0;text-align:left;border-radius:10px}
.pcard canvas{display:block;width:100%;height:auto;aspect-ratio:16/9;border-radius:8px;border:1px solid var(--line)}
.pcard span{display:block;margin-top:4px;font-size:11.5px;line-height:1.2}
.pcard.on canvas{outline:2px solid var(--ink);outline-offset:2px}
.pcard.on span{font-weight:600}
.arr{display:flex;align-items:center;gap:8px;margin-top:10px}
.mini{height:32px;min-width:32px;padding:0 10px;border-radius:10px;border:1px solid var(--line);background:transparent;font-size:15px}
.code{flex:1;text-align:center;font-variant-numeric:tabular-nums;letter-spacing:.04em}
.rng{display:flex;align-items:center;gap:10px;margin-top:12px}
.rng label{min-width:44px}
.rng input{flex:1;accent-color:var(--ink)}
.rng output{min-width:42px;text-align:right;color:var(--soft);font-size:13px}
.lgrid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:10px}
.lbtn{border:1px solid var(--line);background:var(--chip);border-radius:10px;padding:7px 2px 6px;font-size:11.5px;display:flex;flex-direction:column;align-items:center;gap:5px}
.lbtn svg{width:36px;height:22px}
.lbtn.on{background:var(--chipOn);color:var(--chipOnInk);border-color:var(--chipOn)}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.chip{background:var(--chip);border:1px solid transparent;border-radius:999px;padding:7px 14px;font-size:13px}
.chip.on{background:var(--chipOn);color:var(--chipOnInk)}
.chip:disabled{opacity:.35;cursor:not-allowed}
details{margin-bottom:14px}
summary{cursor:pointer;color:var(--soft);font-size:13px;padding:6px 0}
details .sw{margin:6px 0 8px}
/* export */
.exp{border-top:1px solid var(--line);background:var(--bg);padding:12px 20px 16px}
.exp details{margin:0 0 10px}
.exp summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);background:var(--card);border-radius:12px;padding:10px 14px;color:var(--ink);font-weight:500}
.exp summary::-webkit-details-marker{display:none}
.exp summary::after{content:"";width:8px;height:8px;border-right:1.6px solid var(--soft);border-bottom:1.6px solid var(--soft);transform:rotate(-135deg);transition:transform .15s;margin-right:2px}
.exp details[open] summary::after{transform:rotate(45deg)}
.exp details[open]>*:not(summary){margin-top:12px}
.exp .chips{margin:12px 0 0}
.exp .seg{margin-top:12px}
.exp .flds{margin:0}
.fld{margin:8px 0}
.fld label{display:block;margin-bottom:5px;font-weight:500;font-size:13px}
select{width:100%;padding:8px 10px;border-radius:10px;border:1px solid var(--line);background:var(--card)}
.qv{display:flex;justify-content:space-between;color:var(--soft);font-size:12.5px;margin-top:3px}
.chk{display:flex;gap:8px;align-items:center;margin:10px 0 2px;font-size:13px}
.note{color:var(--soft);font-size:12.5px;margin:6px 0}
.go{width:100%;justify-content:center;padding:14px 20px}
progress{width:100%;height:6px;margin-top:10px;accent-color:var(--ink)}
.pl2{display:flex;justify-content:space-between;align-items:center;color:var(--soft);font-size:12.5px;margin-top:5px}
#toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;font-size:13px;transition:.2s;max-width:90vw;z-index:9}
#toast.show{opacity:1;transform:translate(-50%,0)}
[hidden]{display:none!important}
@media (max-width:900px){
  html,body{height:auto;min-height:100%}
  .app{display:block;height:auto}
  .stage{padding:12px 14px 16px}
  .wrap{flex:none;height:min(48vh,calc((100vw - 28px)*0.8))}
  .info{margin-left:0;width:100%}
  .panel{display:block;border-left:0}
  .scroll{overflow:visible;padding:16px 14px 8px}
  .exp{position:sticky;bottom:0;z-index:5;padding:10px 14px calc(12px + env(safe-area-inset-bottom,0px))}
  .time{min-width:64px}
}
@media (prefers-reduced-motion:reduce){#toast,.chev{transition:none}}

/* ---- custom controls ---- */
.topr{display:flex;align-items:center;gap:8px;min-width:0;max-width:100%}
.orient{padding:2px;flex:none}.orient button{padding:5px 10px;display:grid;place-items:center}.orient svg{width:20px;height:15px}
input.r{-webkit-appearance:none;appearance:none;width:100%;height:24px;margin:0;background:transparent;cursor:pointer;--p:0%}
input.r::-webkit-slider-runnable-track{height:6px;border-radius:99px;background:linear-gradient(to right,var(--ink) var(--p),var(--line) var(--p))}
input.r::-moz-range-track{height:6px;border-radius:99px;background:var(--line)}
input.r::-moz-range-progress{height:6px;border-radius:99px;background:var(--ink)}
input.r::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:23px;margin-top:-8.5px;border-radius:48%/54%;background:var(--ink);border:0;box-shadow:0 0 0 4px rgba(128,128,140,.22)}
input.r::-moz-range-thumb{width:20px;height:23px;border-radius:48%/54%;background:var(--ink);border:0;box-shadow:0 0 0 4px rgba(128,128,140,.22)}
input.r:disabled{opacity:.35;cursor:default}
input.r:focus-visible{outline:none}input.r:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 4px var(--ring)}
.dd{position:relative;flex:none}
.dd-btn{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:8px 12px 8px 14px;font-size:13px}
.dd-btn::after{content:"";width:7px;height:7px;border-right:1.6px solid var(--soft);border-bottom:1.6px solid var(--soft);transform:rotate(45deg) translateY(-2px);margin-left:2px}
.dd-list{position:absolute;right:0;z-index:20;min-width:150px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:5px;box-shadow:0 18px 40px -16px rgba(0,0,0,.45)}
.dd-up .dd-list{bottom:calc(100% + 6px)}
.dd:not(.dd-up) .dd-list{top:calc(100% + 6px)}
.dd-opt{display:flex;width:100%;align-items:center;justify-content:space-between;gap:12px;border:0;background:transparent;border-radius:9px;padding:8px 10px;font-size:13px;text-align:left}
.dd-opt:hover,.dd-opt:focus-visible{background:var(--chip)}
.dd-opt[aria-selected="true"]{font-weight:600}
.dd-opt[aria-selected="true"]::after{content:"";width:5px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(40deg) translate(-1px,-2px)}
.switch{display:flex;align-items:center;gap:12px;cursor:pointer;position:relative}
.switch input{position:absolute;opacity:0;width:44px;height:26px;margin:0;cursor:pointer}
.switch .tr{width:44px;height:26px;border-radius:99px;background:var(--line);position:relative;flex:none;transition:background .15s}
.switch .tr::after{content:"";position:absolute;top:3px;left:3px;width:19px;height:20px;border-radius:48%/54%;background:var(--bg);box-shadow:0 1px 2px rgba(0,0,0,.3);transition:transform .15s}
.switch input:checked+.tr{background:var(--chipOn)}
.switch input:checked+.tr::after{transform:translateX(19px);background:var(--chipOnInk)}
.switch input:focus-visible+.tr{outline:2px solid var(--ring);outline-offset:2px}
.sl b{display:block;font-weight:600;font-size:13.5px}.sl small{display:block;color:var(--soft);font-size:12px}
/* export */
.exp{position:relative;z-index:6}
.expbar{display:flex;gap:10px;align-items:stretch}
.exptoggle{flex:1;min-width:0;display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);background:var(--card);border-radius:16px;padding:8px 14px;text-align:left}
.exptoggle b{display:block;font-weight:600;font-size:13.5px}.exptoggle small{display:block;color:var(--soft);font-size:12px}
.chv2{width:8px;height:8px;border-right:1.6px solid var(--soft);border-bottom:1.6px solid var(--soft);transform:rotate(-135deg);transition:transform .15s;flex:none;margin-right:2px}
.exptoggle[aria-expanded="true"] .chv2{transform:rotate(45deg)}
.expbar .go{width:auto;flex:none;padding:0 22px}
.pop{position:absolute;left:12px;right:12px;bottom:calc(100% - 4px);z-index:15;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:16px;max-height:min(70vh,560px);overflow-y:auto;box-shadow:0 24px 60px -20px rgba(0,0,0,.5)}
.pg{margin-bottom:16px}.pg:last-of-type{margin-bottom:6px}
.pt2{display:flex;justify-content:space-between;align-items:baseline;font-weight:600;margin-bottom:8px;font-size:13.5px}
.pd{color:var(--soft);font-weight:400;font-size:12.5px}
.fcards{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.fcard{border:1.5px solid var(--line);background:transparent;border-radius:14px;padding:10px 12px;text-align:left}
.fcard b{display:block;font-weight:600}.fcard small{display:block;color:var(--soft);font-size:12px;line-height:1.3;margin-top:2px}
.fcard.on{border-color:var(--ink);background:var(--chip)}
.fcard:disabled{opacity:.4;cursor:not-allowed}
.szgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.sz{border:1.5px solid var(--line);background:transparent;border-radius:12px;padding:8px 4px;text-align:center}
.sz b{display:block;font-weight:600;font-size:13px}.sz small{display:block;color:var(--soft);font-size:11px;margin-top:1px}
.sz.on{border-color:var(--ink);background:var(--chip)}
.ticks{display:flex;justify-content:space-between;color:var(--soft);font-size:12px}
.exp .note{margin:4px 0 0}

.ctls{margin-top:12px;display:grid;gap:14px}
.ctl-h{display:flex;align-items:center;gap:8px;margin-bottom:5px}
.ctl-h label,.ctl-h .cl{font-weight:500;font-size:13px;flex:1}
.ctl-h output{color:var(--soft);font-size:12.5px;font-variant-numeric:tabular-nums}
.rst{border:0;background:var(--chip);width:22px;height:22px;border-radius:50%;padding:0;font-size:13px;line-height:1;color:var(--ink);visibility:hidden}
.ctl.edited .rst{visibility:visible}
.ctl.edited .ctl-h label,.ctl.edited .ctl-h .cl{font-weight:600}
.ctl .chips{margin-top:0}
.ctl .chip{padding:6px 12px}
.ends{display:flex;justify-content:space-between;color:var(--soft);font-size:11.5px;margin-top:1px}
.arrbar{display:flex;align-items:center;justify-content:space-between;margin-top:14px}
.mini.wide{padding:0 14px}
.sub-note{color:var(--soft);font-size:12px;margin-top:-6px}