:root{
  --bg:#0c0e10; --panel:#15181b; --panel-2:#1b1f23; --line:#272c31;
  --ink:#d6dadd; --muted:#7b848c; --faint:#525a61;
  --shot:#d98a3d; --look:#3f9b94;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
/* The `hidden` attribute must beat any class that sets `display`.
   Without this, rules like .modal{display:flex} override [hidden] and the
   element shows up on load. */
[hidden]{display:none !important}


html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);font-family:var(--sans)}
.titlebar{position:fixed;top:0;left:0;right:0;height:30px;-webkit-app-region:drag;z-index:60}
.lutroot{min-height:100%;padding:46px 22px 60px}
.wrap{max-width:1080px;margin:0 auto}

.masthead{display:flex;align-items:baseline;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding-bottom:16px;flex-wrap:wrap}
.title{font-family:var(--mono);font-size:13px;letter-spacing:.42em;text-transform:uppercase;color:var(--ink);margin:0;font-weight:600}
.title b{color:var(--shot);font-weight:600}
.title i{color:var(--look);font-style:normal}
.sub{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--faint);text-transform:uppercase}

.slots{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
@media(max-width:720px){.slots{grid-template-columns:1fr}}
.slot{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:4px;overflow:hidden}
.slot .tag{position:absolute;top:0;left:0;z-index:3;font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;padding:6px 10px;color:#0c0e10;font-weight:700}
.slot.shot .tag{background:var(--shot)}
.slot.look .tag{background:var(--look)}
.drop{aspect-ratio:16/9;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;cursor:pointer;transition:background .15s,border-color .15s;border:1px dashed transparent}
.drop:hover{background:var(--panel-2)}
.drop.over{background:var(--panel-2);border-color:var(--faint)}
.drop .ico{font-family:var(--mono);font-size:22px;color:var(--faint)}
.drop .lead{font-size:13px;color:var(--ink)}
.drop .hint{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--faint);text-transform:uppercase}
.slot img.thumb{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.slot .reset{position:absolute;top:6px;right:6px;z-index:3;font-family:var(--mono);font-size:10px;letter-spacing:.12em;background:rgba(8,9,10,.72);border:1px solid var(--line);color:var(--muted);padding:4px 8px;border-radius:3px;cursor:pointer}
.slot .reset:hover{color:var(--ink);border-color:var(--faint)}

.controls{margin-top:18px;background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:18px}
.row{display:flex;gap:26px;flex-wrap:wrap;align-items:flex-end}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.seg{display:flex;border:1px solid var(--line);border-radius:3px;overflow:hidden}
.seg button{font-family:var(--mono);font-size:11px;letter-spacing:.08em;padding:8px 13px;background:var(--panel-2);color:var(--muted);border:none;cursor:pointer;border-right:1px solid var(--line)}
.seg button:last-child{border-right:none}
.seg button.on{background:var(--ink);color:#0c0e10;font-weight:700}
.intensity,.slider{flex:1;min-width:190px}
.intensity .top,.slider .top{display:flex;justify-content:space-between;align-items:baseline}
.intensity .val,.slider .val{font-family:var(--mono);font-size:13px;color:var(--shot)}
.controls .row+.row{margin-top:18px}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:3px;background:var(--line);border-radius:2px;outline:none;margin-top:12px}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;border-radius:50%;background:var(--shot);cursor:pointer;border:2px solid var(--bg)}
.namefield input{font-family:var(--mono);font-size:12px;background:var(--panel-2);border:1px solid var(--line);color:var(--ink);padding:8px 10px;border-radius:3px;min-width:200px;outline:none}
.namefield input:focus{border-color:var(--faint)}

.viewer{margin-top:18px;background:#000;border:1px solid var(--line);border-radius:4px;overflow:hidden;position:relative}
.stage{position:relative;width:100%;display:block}
.viewer canvas{display:block;width:100%}
#overcv{position:absolute;top:0;left:0;width:100%;height:100%}
.over{position:absolute;inset:0;overflow:hidden}
.handle{position:absolute;top:0;bottom:0;width:2px;background:rgba(255,255,255,.85);z-index:4;transform:translateX(-1px)}
.handle .grip{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:30px;height:30px;border-radius:50%;background:rgba(12,14,16,.85);border:1px solid rgba(255,255,255,.7);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;color:#fff;cursor:ew-resize}
.vlabel{position:absolute;bottom:8px;font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;padding:4px 8px;border-radius:3px;z-index:4;color:#fff;background:rgba(12,14,16,.6)}
.vlabel.l{left:8px}.vlabel.r{right:8px}

.readout{margin-top:16px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:4px;overflow:hidden}
@media(max-width:620px){.readout{grid-template-columns:repeat(2,1fr)}}
.cell{background:var(--panel);padding:13px 14px}
.cell .k{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.cell .v{font-family:var(--mono);font-size:15px;color:var(--ink);margin-top:5px}
.cell .v small{color:var(--muted);font-size:11px}

.actions{margin-top:18px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.btn{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;padding:12px 20px;border-radius:3px;border:1px solid var(--line);background:var(--panel-2);color:var(--ink);cursor:pointer;transition:.15s}
.btn:hover:not(:disabled){border-color:var(--faint)}
.btn.primary{background:var(--shot);color:#0c0e10;border-color:var(--shot);font-weight:700}
.btn.primary:hover:not(:disabled){filter:brightness(1.08)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.note{font-family:var(--mono);font-size:11px;color:var(--faint)}

.empty{margin-top:40px;text-align:center;color:var(--faint);font-family:var(--mono);font-size:12px;letter-spacing:.1em}
.err{margin-top:14px;font-family:var(--mono);font-size:12px;color:#e06a5a;border:1px solid #5a2b25;background:#1d1311;padding:10px 12px;border-radius:3px}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--panel-2);border:1px solid var(--line);color:var(--ink);font-family:var(--mono);font-size:12px;padding:11px 16px;border-radius:4px;z-index:80;box-shadow:0 8px 30px rgba(0,0,0,.5);display:flex;gap:14px;align-items:center}
.toast .link{color:var(--shot);cursor:pointer;text-decoration:underline}

/* --- per-slider reset buttons --- */
.valwrap{display:inline-flex;align-items:center;gap:7px}
.rst{font-family:var(--mono);font-size:12px;line-height:1;background:transparent;border:1px solid var(--line);color:var(--faint);width:20px;height:20px;border-radius:3px;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;transition:.15s}
.rst:hover{color:var(--ink);border-color:var(--faint)}
.rst:active{transform:scale(.92)}
.btn.tiny{font-size:10px;letter-spacing:.12em;padding:8px 12px}

/* --- name-your-LUT dialog --- */
.modal{position:fixed;inset:0;z-index:90;background:rgba(6,7,8,.72);display:flex;align-items:center;justify-content:center;padding:24px}
.sheet{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:22px;width:100%;max-width:420px;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.sheet-title{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink)}
.sheet-sub{font-size:12px;color:var(--muted);margin-top:7px}
.sheet input{width:100%;margin-top:16px;font-family:var(--mono);font-size:13px;background:var(--panel-2);border:1px solid var(--line);color:var(--ink);padding:11px 12px;border-radius:3px;outline:none}
.sheet input:focus{border-color:var(--shot)}
.sheet-file{font-family:var(--mono);font-size:11px;color:var(--faint);margin-top:9px;word-break:break-all;min-height:14px}
.sheet-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}