:root{
  --bg:#0a0a0f; --panel:#13131a; --line:#2a2a3d; --text:#e2e8f0; --muted:#94a3b8;
  --dim:#64748b; --violet:#7c3aed; --red:#ef4444; --green:#4ade80; --cyan:#22d3ee;
  --amber:#b45309;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
.hidden{display:none!important}

/* ---------- menu ---------- */
.menu{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px 16px}
.menu-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:32px 28px;max-width:480px;width:100%}
.menu-card h1{font-size:1.7em;margin-bottom:6px}
.menu-card .sub{color:var(--muted);margin-bottom:18px}
.menu-card ul{margin:0 0 22px 18px;color:#cbd5e1;line-height:1.8;font-size:.92em}
.big{width:100%;padding:14px;font-size:1em}
.fine{color:var(--dim);font-size:.78em;line-height:1.5;margin-top:12px}
.err{color:#f87171;font-size:.85em;margin-top:12px;line-height:1.5}
.campick{display:flex;flex-direction:column;gap:8px}
.campick label{font-size:.85em;color:var(--muted)}
.campick .sel{max-width:none;width:100%;padding:10px;font-size:.9em}

/* ---------- buttons ---------- */
.b{padding:8px 14px;border:none;border-radius:6px;font-weight:700;font-size:.8em;
  cursor:pointer;color:#fff;font-family:inherit;white-space:nowrap}
.b:disabled{opacity:.4;cursor:not-allowed}
.b:focus-visible,.sel:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.br{background:#dc2626}.bs{background:#64748b}.bt{background:var(--violet)}
.bd{background:#0891b2}.bc{background:var(--amber)}.bc.on{background:var(--violet)}
.bk{background:var(--panel);color:var(--text);border:1px solid var(--line)}
.sel{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:6px;
  padding:7px 6px;font-size:.78em;max-width:170px}
.chk{font-size:.78em;color:var(--muted);display:flex;align-items:center;gap:4px;cursor:pointer}

/* ---------- app layout ---------- */
.app{display:flex;flex-direction:column;height:100%}
.bar{background:rgba(10,10,15,.96);border-bottom:1px solid var(--line);padding:8px 12px;
  display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.d{width:1px;height:24px;background:var(--line);margin:0 2px}
.badge{margin-left:auto;padding:5px 12px;border-radius:20px;font-size:.75em;font-weight:700;
  letter-spacing:.5px;border:1px solid transparent;white-space:nowrap}
.badge-idle{background:#1e293b;color:var(--dim);border-color:var(--line)}
.badge-rec{background:#450a0a;color:#f87171;border-color:var(--red)}
.badge-train{background:#1a1a45;color:#a78bfa;border-color:var(--violet)}
.badge-countdown{background:#1c1708;color:#fbbf24;border-color:#f59e0b}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.pulse{animation:pulse 1s ease-in-out infinite}

.container{display:flex;flex:1;min-height:0}
.video-area{flex:1;position:relative;display:flex;align-items:center;justify-content:center;
  background:#000;min-width:0}
#out{width:100%;height:100%;object-fit:contain;display:block}
.loading{position:absolute;color:var(--muted);font-size:.9em}
.sidebar{width:250px;flex-shrink:0;background:var(--panel);border-left:1px solid var(--line);
  padding:12px;overflow-y:auto;font-size:.8em;line-height:1.5}
.sidebar h3{font-size:.75em;letter-spacing:2px;text-transform:uppercase;color:var(--dim);
  margin:8px 0 5px;border-bottom:1px solid var(--line);padding-bottom:3px}
.row{display:flex;justify-content:space-between;color:#cbd5e1;padding:1px 0}
.label{color:var(--muted)}
.val{font-weight:700;font-variant-numeric:tabular-nums}
.detect{color:var(--green);font-weight:700}
.nodetect{color:var(--dim)}
.acc{color:var(--cyan)}
#skelCanvas{display:block;width:100%;border-radius:6px;margin-top:4px;border:1px solid var(--line)}

@media (max-width:800px){
  .app{height:auto;min-height:100%}
  .container{flex-direction:column}
  .video-area{flex:none}
  #out{height:auto}
  .sidebar{width:100%;border-left:none;border-top:1px solid var(--line)}
  #angles,#extras{display:grid;grid-template-columns:1fr 1fr;column-gap:16px}
  #skelCanvas{max-width:260px}
  .badge{margin-left:0}
  .d{display:none}
}

/* ---------- dialogs ---------- */
.ov{display:none;position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:300;
  justify-content:center;align-items:center;padding:16px}
.ov.show{display:flex}
.pb{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:26px;
  width:100%;max-width:340px;text-align:center;max-height:90vh;overflow-y:auto}
.pb.wide{max-width:540px}
.pb h3{margin-bottom:8px;font-size:1.1em}
.pb input[type=text],.pb input:not([type]){width:100%;padding:10px;background:var(--bg);
  border:1px solid var(--line);border-radius:6px;color:var(--text);font-size:1em;margin:12px 0 0}
.btns{display:flex;gap:8px;justify-content:center;margin-top:16px}
.btns.wrap{flex-wrap:wrap}
.list{display:flex;flex-direction:column;gap:6px;margin-top:14px;text-align:left}
.item{display:flex;align-items:center;gap:10px;padding:8px 10px;border:1px solid var(--line);
  border-radius:8px;background:#1a1a24}
.item canvas{flex-shrink:0;border-radius:4px;background:#0d0d14}
.item .meta{flex:1;min-width:0}
.item .nm{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item .ct{color:var(--dim);font-size:.78em}
.item .acts{display:flex;gap:4px}
.item .acts .b{padding:5px 9px;font-size:.72em}
.coach-pick{padding:9px 14px;border:1px solid var(--line);border-radius:6px;background:#1e293b;
  color:var(--text);cursor:pointer;text-align:left;font-size:.9em;font-family:inherit}
.coach-pick:hover{background:#334155}
.coach-pick.on{background:var(--violet)}
.desc{font-size:.8em;color:#fbbf24;font-style:italic;min-height:20px;margin-top:12px;text-align:left}
.empty{color:var(--dim);font-size:.85em;text-align:center;padding:12px}
.filebtn{position:relative;overflow:hidden;display:inline-flex;align-items:center}
.filebtn input{position:absolute;inset:0;opacity:0;cursor:pointer}

.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(100px);
  background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:12px 24px;
  font-size:.85em;transition:transform .3s;z-index:400;text-align:center;max-width:calc(100% - 32px);
  white-space:pre-line}
.toast.show{transform:translateX(-50%) translateY(0)}