:root{
  --ground:#f4f3ef;--surface:#fff;--surface-2:#faf9f6;--ink:#1b1a17;--muted:#6c6860;
  --faint:#9a958c;--border:#e5e2da;--border-strong:#d3cfc4;--accent:#0f9fb0;--accent-ink:#0a6e7a;
  --accent-wash:#e2f4f5;--hot:#e5326e;--good:#1f9d57;--warn:#c8811b;--bad:#c8322f;
  --shadow:0 1px 2px rgba(27,26,23,.05),0 8px 24px rgba(27,26,23,.06);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --ground:#131517;--surface:#1c1f22;--surface-2:#191c1e;--ink:#ececea;--muted:#a6a29a;
  --faint:#78746c;--border:#2c3033;--border-strong:#3a3f43;--accent:#2bc3d4;--accent-ink:#8fe3ec;
  --accent-wash:#123437;--hot:#ff5c8a;--good:#3bc978;--warn:#e0a447;--bad:#ef6f6c;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35);
}}
:root[data-theme="dark"]{
  --ground:#131517;--surface:#1c1f22;--surface-2:#191c1e;--ink:#ececea;--muted:#a6a29a;
  --faint:#78746c;--border:#2c3033;--border-strong:#3a3f43;--accent:#2bc3d4;--accent-ink:#8fe3ec;
  --accent-wash:#123437;--hot:#ff5c8a;--good:#3bc978;--warn:#e0a447;--bad:#ef6f6c;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--ground);color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:14px;line-height:1.5;
  -webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:"Bricolage Grotesque","IBM Plex Sans",sans-serif;margin:0;letter-spacing:-.01em}
button{font-family:inherit;font-size:inherit;color:inherit;cursor:pointer}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}
.hidden{display:none!important}

.app{display:flex;flex-direction:column;height:100%}
.topbar{display:flex;align-items:center;gap:16px;padding:11px 18px;background:var(--surface);
  border-bottom:1px solid var(--border);flex:none}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--hot));
  display:grid;place-items:center;color:#fff;font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:15px}
.brand b{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:15px;letter-spacing:-.02em}
.brand span{color:var(--faint);font-size:12px}
.topbar select.proj{max-width:230px}
.stepper{display:flex;align-items:center;gap:6px;flex:1;overflow-x:auto}
.step{display:flex;align-items:center;gap:7px;padding:5px 11px;border-radius:999px;font-size:12px;
  white-space:nowrap;color:var(--muted);border:1px solid transparent}
.step .dot{width:7px;height:7px;border-radius:50%;background:var(--border-strong);flex:none}
.step.done{color:var(--ink)} .step.done .dot{background:var(--good)}
.step.active{color:var(--accent-ink);background:var(--accent-wash);border-color:var(--accent)}
.step.active .dot{background:var(--accent);box-shadow:0 0 0 3px var(--accent-wash)}
.step .sep{color:var(--faint)}
.topbar .actions{display:flex;gap:8px;flex:none}

.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 13px;border-radius:9px;
  border:1px solid var(--border-strong);background:var(--surface);font-weight:600;font-size:13px}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.05)}
.btn.ghost{border-color:transparent;background:transparent;color:var(--muted)}
.btn.danger{border-color:var(--bad);color:var(--bad)}
.btn.danger:hover{background:var(--bad);color:#fff}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.sm{padding:5px 10px;font-size:12px}

.work{display:grid;grid-template-columns:minmax(0,1fr) 420px;flex:1;min-height:0}
@media (max-width:960px){.work{grid-template-columns:1fr;overflow-y:auto}}

.stage{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:22px;gap:12px;min-height:0;overflow:auto;
  background:radial-gradient(circle at 50% 0%,color-mix(in srgb,var(--accent) 7%,transparent),transparent 60%),var(--ground)}
.canvas{position:relative;height:min(70vh,560px);max-width:100%;aspect-ratio:9/16;border-radius:18px;
  overflow:hidden;flex:none;background:linear-gradient(180deg,#3a3f52,#20232e 55%,#171922);
  box-shadow:var(--shadow),0 0 0 1px var(--border-strong)}
.canvas video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#000}
.canvas .photo{position:absolute;inset:0;background:
  radial-gradient(140% 60% at 30% 12%,rgba(255,220,150,.30),transparent 55%),
  radial-gradient(120% 55% at 85% 80%,rgba(229,50,110,.24),transparent 55%),
  linear-gradient(200deg,#4a5169,#272b39 60%,#15161d)}
.canvas .vignette{position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(0,0,0,.55))}
.canvas .badge-cn{position:absolute;top:12px;left:12px;font-size:11px;padding:4px 8px;border-radius:7px;
  background:rgba(0,0,0,.42);color:#fff}
.grid3{position:absolute;inset:0;pointer-events:none;opacity:.45}
.grid3 i{position:absolute;background:rgba(255,255,255,.16)}
.grid3 i.v1{left:33.33%;top:0;bottom:0;width:1px}.grid3 i.v2{left:66.66%;top:0;bottom:0;width:1px}
.grid3 i.h1{top:33.33%;left:0;right:0;height:1px}.grid3 i.h2{top:66.66%;left:0;right:0;height:1px}

.subbox{position:absolute;left:50%;bottom:12%;transform:translateX(-50%);width:86%;text-align:center;
  padding:7px 10px;border-radius:8px;background:rgba(0,0,0,.5);outline:1.5px dashed var(--accent);
  outline-offset:3px;pointer-events:none}
.subbox .tag{pointer-events:auto;cursor:grab}
.subbox .tag:active{cursor:grabbing}
.subbox .txt{color:#fff;font-weight:700;font-size:16px;line-height:1.35;
  text-shadow:0 0 2px #000,0 2px 4px rgba(0,0,0,.8)}
.subbox .txt.orig{font-size:12px;font-weight:600;opacity:.82;color:#dfe3ea;margin-bottom:3px;text-shadow:0 0 2px #000}
.subbox .tag{position:absolute;top:-24px;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:10.5px;
  font-weight:600;padding:2px 7px;border-radius:6px;background:var(--accent);color:#fff}
.wm{position:absolute;right:5%;bottom:6%;padding:6px 11px;border-radius:8px;background:rgba(255,255,255,.92);
  color:#141414;font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:13px;
  box-shadow:0 2px 10px rgba(0,0,0,.35);max-width:40%;overflow:hidden}
.wm img{display:block;max-width:100%;height:auto}
.stage .hint{font-size:12px;color:var(--muted);text-align:center;max-width:320px}
.stage .empty{color:var(--muted);text-align:center;max-width:340px;display:flex;flex-direction:column;gap:12px}

.panel{background:var(--surface);border-left:1px solid var(--border);display:flex;flex-direction:column;min-height:0}
.panel .scroll{overflow-y:auto;padding:4px 0 24px}
.card{border-bottom:1px solid var(--border);padding:15px 17px}
.card h3{font-size:13px;font-weight:700;display:flex;align-items:center;gap:8px}
.card h3 .ix{width:18px;height:18px;border-radius:6px;background:var(--accent-wash);color:var(--accent-ink);
  display:grid;place-items:center;font-size:11px;font-weight:700;font-family:"IBM Plex Mono",monospace}
.card h3 .chip{margin-left:auto;font-size:10.5px;font-weight:600;padding:2px 8px;border-radius:999px}
.chip.on{background:var(--good);color:#fff}.chip.info{background:var(--accent-wash);color:var(--accent-ink)}
.chip.bad{background:var(--bad);color:#fff}.chip.muted{background:var(--surface-2);color:var(--muted);border:1px solid var(--border-strong)}
.row{display:flex;flex-direction:column;gap:5px;margin-top:11px}
.row>label{font-size:11.5px;font-weight:600;color:var(--muted);display:flex;justify-content:space-between}
.row>label .val{font-family:"IBM Plex Mono",monospace;color:var(--accent-ink);font-weight:500}
.switchrow{display:flex;align-items:center;justify-content:space-between;margin-top:12px}
.switchrow label{font-size:12.5px;font-weight:600}

.field{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:9px;border:1px solid var(--border-strong);
  background:var(--surface-2);font-size:13px}
.field input{border:0;background:transparent;flex:1;color:inherit;font-family:inherit;font-size:13px;outline:none;min-width:0}
.field input.mono{font-family:"IBM Plex Mono",monospace;font-size:12px}
.field .icon{color:var(--faint);flex:none}
select.field{appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--faint) 50%),linear-gradient(135deg,var(--faint) 50%,transparent 50%);
  background-position:calc(100% - 16px) 55%,calc(100% - 11px) 55%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}

input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:3px;background:var(--border-strong);outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;
  background:var(--accent);border:2px solid var(--surface);box-shadow:0 1px 3px rgba(0,0,0,.25);cursor:pointer}
input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);border:2px solid var(--surface);cursor:pointer}

.langflow{display:flex;gap:8px;align-items:flex-end;margin-top:12px}
.langflow .row{flex:1;margin-top:0}
.swapbtn{width:34px;height:34px;flex:none;border-radius:9px;margin-bottom:1px;border:1px solid var(--border-strong);
  background:var(--surface-2);font-size:15px;color:var(--accent-ink)}
.swapbtn:hover{border-color:var(--accent);background:var(--accent-wash)}

.posgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;margin-top:8px}
.posgrid button{aspect-ratio:16/10;border-radius:8px;border:1px solid var(--border-strong);background:var(--surface-2);
  display:grid;place-items:center}
.posgrid button::after{content:"";width:52%;height:4px;border-radius:2px;background:var(--faint)}
.posgrid button:hover{border-color:var(--accent)}
.posgrid button.sel{border-color:var(--accent);background:var(--accent-wash)}
.posgrid button.sel::after{background:var(--accent)}

.segmented{display:flex;border:1px solid var(--border-strong);border-radius:9px;overflow:hidden;margin-top:8px}
.segmented button{flex:1;padding:8px 6px;font-size:12px;font-weight:600;background:var(--surface-2);border:0;
  border-right:1px solid var(--border-strong);color:var(--muted)}
.segmented button:last-child{border-right:0}
.segmented button.sel{background:var(--accent-wash);color:var(--accent-ink)}

.voices{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}
.voice{position:relative;border:1px solid var(--border-strong);border-radius:10px;padding:10px;background:var(--surface-2);text-align:left}
.voice.sel{border-color:var(--accent);background:var(--accent-wash)}
.voice b{display:block;font-size:12.5px}
.voice small{color:var(--muted);font-size:11px}
.voice .eng{position:absolute;top:8px;right:8px;font-size:9px;font-weight:600;letter-spacing:.04em;
  text-transform:uppercase;color:var(--faint)}
.voice .listen{margin-top:7px;font-size:10.5px;color:var(--accent-ink);font-weight:600;background:transparent;border:0;padding:0}
.voice .del{position:absolute;bottom:6px;right:8px;font-size:11px;color:var(--faint);background:transparent;border:0}
.voice.add{display:flex;align-items:center;justify-content:center;border-style:dashed;color:var(--accent-ink);font-weight:600;font-size:12px}

.swatches{display:flex;gap:6px;margin-top:6px}
.swatches i{width:22px;height:22px;border-radius:6px;border:1px solid var(--border-strong);cursor:pointer;display:block}
.swatches i.sel{box-shadow:0 0 0 2px var(--accent)}

.toggle{width:38px;height:22px;border-radius:999px;background:var(--good);position:relative;flex:none;border:0}
.toggle::after{content:"";position:absolute;top:2px;left:18px;width:18px;height:18px;border-radius:50%;background:#fff;transition:left .15s}
.toggle.off{background:var(--border-strong)}.toggle.off::after{left:2px}

.addtile{display:flex;align-items:center;justify-content:center;gap:6px;border:1px dashed var(--border-strong);
  border-radius:10px;background:transparent;color:var(--accent-ink);font-weight:600;font-size:12px;padding:9px;width:100%;margin-top:10px}
.addtile:hover{border-color:var(--accent);background:var(--accent-wash)}
.subform{margin-top:10px;padding:12px;border:1px solid var(--border-strong);border-radius:10px;background:var(--surface-2)}
.subform .row:first-child{margin-top:0}
.subform .foot{display:flex;gap:8px;margin-top:12px}

.note{margin-top:10px;font-size:11.5px;color:var(--muted);display:flex;gap:7px;line-height:1.45}
.note .i{color:var(--accent-ink);flex:none;font-weight:700}
.cost{margin-top:10px;padding:8px 10px;border-radius:8px;background:var(--surface-2);border:1px dashed var(--border-strong);
  font-size:11.5px;color:var(--muted);display:flex;justify-content:space-between}
.cost b{color:var(--ink);font-family:"IBM Plex Mono",monospace}
.sttblk{border:1px solid var(--border-strong);border-radius:10px;padding:11px;margin-top:10px;background:var(--surface-2)}
.sttblk-h{font-size:11.5px;font-weight:700;color:var(--muted);margin-bottom:2px}
.sttblk.active{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-wash)}

.uploader{display:flex;gap:10px;align-items:center;margin-top:10px;padding:10px;border:1px dashed var(--border-strong);
  border-radius:10px;background:var(--surface-2)}
.logoprev{width:46px;height:46px;border-radius:8px;flex:none;display:grid;place-items:center;
  background:repeating-conic-gradient(var(--border) 0% 25%,transparent 0% 50%) 50%/12px 12px,var(--surface);
  font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:10px;color:var(--muted);overflow:hidden}
.logoprev img{max-width:100%;max-height:100%}

.renderbar{flex:none;display:flex;align-items:center;gap:14px;padding:11px 18px;background:var(--surface);border-top:1px solid var(--border)}
.renderbar.err{box-shadow:inset 4px 0 0 var(--bad);background:color-mix(in srgb,var(--bad) 6%,var(--surface))}
.progress{flex:1;height:8px;border-radius:6px;background:var(--border);overflow:hidden;position:relative}
.progress i{position:absolute;inset:0;width:0;background:linear-gradient(90deg,var(--accent),var(--hot));transition:width .4s}
.renderbar .lbl{font-size:12px;color:var(--muted);white-space:nowrap;max-width:38ch;overflow:hidden;text-overflow:ellipsis}
.renderbar .lbl b{color:var(--ink)}

/* segment editor */
.seglist{margin-top:10px;display:flex;flex-direction:column;gap:6px;max-height:320px;overflow-y:auto}
.seg{border:1px solid var(--border-strong);border-radius:9px;padding:8px 9px;background:var(--surface-2)}
.seg .t{font-family:"IBM Plex Mono",monospace;font-size:10.5px;color:var(--faint);display:flex;justify-content:space-between}
.seg .src{font-size:11px;color:var(--muted);margin:3px 0}
.seg textarea{width:100%;border:1px solid var(--border-strong);border-radius:6px;background:var(--surface);
  color:inherit;font-family:inherit;font-size:12.5px;padding:5px 7px;resize:vertical;min-height:34px}

/* modal + toast */
.modal-bg{position:fixed;inset:0;background:rgba(10,10,12,.55);display:grid;place-items:center;z-index:50}
body.gated .app{display:none}
body.gated .modal-bg{background:var(--ground)}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:22px;width:min(380px,92vw);
  box-shadow:var(--shadow)}
.modal h2{font-size:16px;margin-bottom:6px}
.modal p{font-size:12.5px;color:var(--muted);margin:0 0 14px}
#toast{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--ground);
  padding:9px 16px;border-radius:9px;font-size:13px;font-weight:600;z-index:60;opacity:0;transition:opacity .25s;pointer-events:none}
#toast.show{opacity:1}
#toast.err{background:var(--bad);color:#fff}