.study-switch{flex-wrap:wrap}
.chain-study h1{font-size:52px;letter-spacing:-2.5px;margin:16px 0}
.chain-study .lead{font-size:18px;margin-bottom:10px}
.chain-study .description{font-size:16px;line-height:1.55;margin-bottom:16px}
.chain-study .study-switch button{font-size:12px}
.chain-study .control-grid{padding:13px 0;gap:10px 14px}
.chain-study .control-grid span{font-size:12px}
.chain-study .chamber-caption h2{font-size:58px}
#chain-controls{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:10px 18px}
#chain-controls>span{display:flex;align-items:center;gap:8px}
.chain-hud{position:absolute;top:130px;left:36px;display:flex;flex-direction:column;gap:15px;font:14px var(--mono);color:var(--ink)}
.chain-vitals{display:flex;gap:22px;padding:13px 16px;background:#eef2e6e8;border-left:3px solid var(--ink)}
.chain-vitals>span{display:flex;flex-direction:column;gap:4px}
.chain-vitals small{font-size:12px;letter-spacing:1px}
.chain-vitals b{font-size:24px;font-weight:500}
.chain-abilities{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.chain-abilities span{padding:8px 10px;background:#eef2e6e8;font-size:12px;letter-spacing:.5px}
.chain-abilities .charged{background:#203e3b;color:#7af0df}
.chain-hud.hurt .chain-vitals{border-color:#b94426;color:#a83722}
#chain-combo{font-size:14px;letter-spacing:1px}
#chain-feedback{position:absolute;top:calc(50% + 62px);width:100%;text-align:center;font:14px var(--mono);letter-spacing:1.5px;color:#173932;text-shadow:0 1px #fff}
#crosshair.catch-open{outline:2px solid #d39327;outline-offset:18px;border-radius:50%}
#crosshair.charged{outline:2px solid #229c95;outline-offset:15px;border-radius:50%}
.chain-study.motion-off #crosshair.hit span{animation:none}
.chain-study .hud-invitation{max-width:400px;font-size:14px}
.chain-study .hud-controls{font-size:12px;line-height:1.6}
#chain-result{margin:12px 0 16px;padding:12px 15px;background:#e3ead7;font:14px/1.7 var(--mono);border-left:3px solid #455e3b}
@media(max-width:900px){.chain-study h1{font-size:42px}.chain-hud{left:20px;top:104px}.chain-vitals{gap:18px;padding:10px}.chain-vitals b{font-size:20px}.chain-study .hud-invitation{display:none}}
@media(max-height:650px){.chain-hud{top:92px}.chain-abilities{gap:4px}.chain-vitals{padding:8px 12px}.chain-study .bottom-hud{bottom:54px}}