.training-shell{--lab-accent:#4d7cce;--lab-tint:rgba(82,141,222,.1);--lab-panel:rgba(249,253,255,.6);--lab-edge:rgba(255,255,255,.88)}html[data-theme=dark] .training-shell{--lab-accent:#96bcff;--lab-tint:rgba(129,175,250,.12);--lab-panel:rgba(20,36,56,.64);--lab-edge:rgba(181,212,251,.18)}.training-shell[data-training-kind=style]{--lab-accent:#b9743c;--lab-tint:rgba(234,152,86,.12)}html[data-theme=dark] .training-shell[data-training-kind=style]{--lab-accent:#ffc090;--lab-tint:rgba(234,152,86,.12)}.training-main{position:relative;z-index:1;max-width:1600px;margin-left:var(--shell-offset);padding:30px 30px 24px;transition:margin-left .35s}.training-main svg,.lab-dialog svg,.training-toast svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.training-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:23px}.lab-eyebrow{display:block;color:var(--muted);font:600 11px Manrope,sans-serif;letter-spacing:.17em;margin-bottom:8px}.training-heading h1{font-size:clamp(30px,3.2vw,44px);font-weight:500;line-height:1.25;letter-spacing:-.045em;margin-bottom:8px}.training-heading p{font-size:15px;line-height:1.7;color:var(--muted)}.prototype-pill,.version-pill{padding:7px 12px;border:1px solid var(--lab-edge);border-radius:100px;background:var(--lab-panel);color:var(--muted);font-size:12px;white-space:nowrap}.lab-navigation{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:24px}.lab-tabs{display:flex;gap:5px;border-radius:18px;padding:5px;background:var(--lab-panel);border-color:var(--lab-edge);box-shadow:inset 0 1px #fff4}.lab-tabs button{padding:11px 17px;min-height:43px;border-radius:13px;font-size:14px;font-weight:500;color:var(--muted);transition:background .25s,color .25s,box-shadow .25s}.lab-tabs button[aria-selected=true]{background:var(--strong);box-shadow:0 4px 13px #173d6b0a,inset 0 1px #ffffff40;color:var(--ink)}.lab-tabs button span{margin-left:6px;font-size:12px;opacity:.6;font-variant-numeric:tabular-nums}.local-note{font-size:12px;color:var(--muted)}.lab-grid{display:grid;grid-template-columns:minmax(0,1fr) 315px;gap:24px;align-items:start}.materials-column{min-width:0}.dataset-types{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}.dataset-card{display:flex;align-items:center;text-align:left;gap:12px;padding:19px 17px;border-radius:22px;background:var(--lab-panel);border:1px solid var(--lab-edge);box-shadow:inset 0 1px #fff4;transition:transform .25s,background .25s,border-color .25s}.dataset-card:hover{transform:translateY(-2px)}.dataset-card[aria-pressed=true]{background:linear-gradient(130deg,var(--lab-tint),transparent),var(--strong);border-color:color-mix(in srgb,var(--lab-accent) 40%,var(--lab-edge));box-shadow:inset 0 1px #ffffff50,0 8px 30px #1e508011}.dataset-icon{display:grid;place-items:center;width:41px;height:41px;border:1px solid var(--lab-edge);border-radius:14px;background:var(--soft-blue);color:var(--blue)}.dataset-card[data-kind=style] .dataset-icon{background:#e9995a1f;color:var(--orange)}.dataset-card strong{font-size:16px;font-weight:500;display:block;margin-bottom:5px}.dataset-card small{font-size:11px;color:var(--muted);white-space:nowrap}.dataset-count{margin-left:auto;font:400 24px Manrope,sans-serif;color:var(--muted);opacity:.65}.material-panel,.trainer-panel{border-radius:26px;background:var(--lab-panel);border-color:var(--lab-edge);box-shadow:inset 0 1px #ffffff50,0 18px 50px -35px #18487555;backdrop-filter:blur(30px) saturate(1.25);-webkit-backdrop-filter:blur(30px) saturate(1.25)}.material-panel{padding:22px 23px 16px}.material-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.material-heading .lab-eyebrow{font-size:10px;margin-bottom:4px}.material-heading h2{font-size:22px;letter-spacing:-.035em;font-weight:500}.lab-button{display:inline-flex;gap:8px;align-items:center;justify-content:center;border:1px solid var(--lab-edge);border-radius:13px;padding:11px 14px;background:var(--strong);font-size:13px;font-weight:500;transition:background .25s,transform .25s;color:var(--ink);min-height:42px}.lab-button:hover{background:var(--soft-blue);transform:translateY(-1px)}.lab-button svg{width:16px;height:16px}.upload-button{color:var(--lab-accent);background:var(--lab-tint);border-color:color-mix(in srgb,var(--lab-accent) 20%,var(--lab-edge))}.upload-zone{display:flex;align-items:center;justify-content:center;gap:15px;width:100%;padding:18px 14px;min-height:97px;border:1px dashed color-mix(in srgb,var(--lab-accent) 33%,transparent);border-radius:19px;background:linear-gradient(120deg,var(--lab-tint),transparent);text-align:left;transition:background .3s,border-color 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