.st-app{--ink:#142726;--muted:#58706c;--paper:#f4f7f4;--accent:#087f70;--line:#cedbd6;--white:#fff;color:var(--ink);background:var(--paper);font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100dvh;box-sizing:border-box;margin:-1px calc(50% - 50vw);padding:0 24px 60px}.st-app *{box-sizing:border-box}.st-shell{max-width:1160px;margin:auto}.st-top{height:76px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.st-wordmark{font-size:19px;font-weight:750;letter-spacing:-.05em}.st-mark{font-size:30px;color:var(--accent);vertical-align:-3px;margin-right:6px}.st-top-note{color:var(--muted);font-size:13px}.st-intro{max-width:760px;padding:clamp(56px,10vh,120px) 0}.st-kicker{color:var(--accent);font-weight:750;font-size:12px;letter-spacing:.12em;text-transform:uppercase}.st-app h1{font-size:clamp(38px,5.2vw,72px);line-height:1.07;letter-spacing:-.065em;margin:12px 0 24px;font-weight:720}.st-app h2{font-size:clamp(28px,3vw,44px);line-height:1.13;letter-spacing:-.045em;margin:10px 0 16px}.st-app p{max-width:64ch;color:var(--muted)}.st-intro>p{font-size:18px}.st-consent{display:flex;gap:13px;align-items:flex-start;padding:24px 0;max-width:650px}.st-consent input{width:20px;height:20px;accent-color:var(--accent);margin-top:2px}.st-button{appearance:none;display:inline-flex;justify-content:center;align-items:center;min-height:48px;border:1px solid transparent;border-radius:12px;background:var(--accent);color:white!important;font:inherit;font-weight:650;letter-spacing:-.01em;padding:11px 24px;cursor:pointer;transition:transform .12s ease,background .18s ease}.st-button:hover{background:#086d62}.st-button:active{transform:scale(.98)}.st-button:disabled{opacity:.55;cursor:wait}.st-button-secondary{background:white;color:var(--ink)!important;border-color:var(--line)}.st-button-secondary:hover{background:#ebf2ee}.st-button:focus-visible,.st-app input:focus-visible,.st-app textarea:focus-visible,.st-media-stage:focus-visible{outline:3px solid #46a99d;outline-offset:3px}.st-study{padding:34px 0 0}.st-study-header{display:flex;justify-content:space-between;align-items:center;gap:16px}.st-progress{font-variant-numeric:tabular-nums;font-weight:650;color:var(--accent)}.st-stage-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(290px,.7fr);gap:36px;align-items:start;margin-top:22px}.st-media-stage{position:relative;display:block;width:100%;margin:auto;touch-action:manipulation;cursor:crosshair;outline:none;line-height:0;background:#dce5e0;border-radius:16px;overflow:hidden;box-shadow:0 18px 50px #123f3520}.st-media-stage img,.st-media-stage video{display:block;width:100%;height:auto;max-height:70vh;object-fit:contain}.st-media-stage video{cursor:crosshair}.st-video-wrap{position:relative}.st-video-wrap video{width:100%}.st-marker{position:absolute;width:26px;height:26px;border:3px solid white;border-radius:50%;background:var(--accent);box-shadow:0 2px 15px #0009;transform:translate(-50%,-50%);pointer-events:none}.st-marker:after{content:"";position:absolute;inset:7px;border-radius:50%;background:white}.st-scene-details{padding:8px 0}.st-instruction{color:var(--ink)!important;font-size:18px;font-weight:620}.st-description{white-space:pre-line}.st-meta{font-size:13px;color:var(--muted)}.st-skip{border:0;background:none;color:var(--accent);text-decoration:underline;cursor:pointer;padding:12px 0}.st-dialog-backdrop{position:fixed;inset:0;z-index:99999;background:#10252383;display:flex;align-items:center;justify-content:center;padding:18px;backdrop-filter:blur(6px)}.st-dialog{width:min(100%,480px);background:var(--white);border-radius:20px;padding:28px;box-shadow:0 30px 90px #071e1c55}.st-dialog h2{font-size:27px}.st-dialog p{font-size:15px}.st-dialog textarea{width:100%;min-height:100px;resize:vertical;padding:12px;border:1px solid var(--line);border-radius:10px;font:inherit}.st-dialog label{display:block;font-weight:620;margin:20px 0 8px}.st-dialog select{padding:9px;border-radius:8px;border:1px solid var(--line)}.st-dialog-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.st-status{min-height:26px;font-size:13px;color:var(--muted)}.st-result{padding:30px 0 75px}.st-result-frame{position:relative;display:inline-block;max-width:100%;line-height:0}.st-result-frame img{display:block;max-width:100%;max-height:65vh}.st-result-frame canvas,.st-result-frame .st-overlay{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.st-result-frame .st-overlay span{position:absolute;border:2px solid #2175e3;background:#2175e32a}.st-result-frame .st-overlay .st-ai-region{border-color:#cb6b14;background:#cb6b1429}.st-result-controls{display:flex;gap:20px;flex-wrap:wrap;margin:18px 0}.st-result-controls input{accent-color:var(--accent)}@media(max-width:800px){.st-stage-grid{grid-template-columns:1fr;gap:16px}.st-scene-details{order:-1}.st-top-note{display:none}.st-app{padding:0 16px 40px}.st-study{padding-top:22px}.st-dialog{padding:22px}}@media(prefers-reduced-motion:reduce){.st-app *{transition:none!important;animation:none!important}}
 .st-result-frame video{display:block;max-width:100%;max-height:65vh}
.st-result-frame .st-overlay .st-own-region{border:3px solid #fff;background:#087f70;border-radius:50%;box-shadow:0 0 0 2px #087f70,0 2px 9px #0006}