.page-bell-correlation-observatory { --bell-cyan:#72e3e9; --bell-amber:#ffc56b; }
.bell-app { max-width:1480px; margin:auto; padding:0 clamp(16px,3vw,44px) 48px; }
.bell-layout { display:grid; grid-template-columns:minmax(0,1.5fr) minmax(310px,.85fr); gap:20px; align-items:start; }
.bell-stage,.bell-controls,.bell-card,.bell-notes>article { min-width:0; padding:clamp(18px,2.5vw,30px); background:linear-gradient(145deg,rgba(26,54,96,.44),rgba(7,20,41,.92)); border-color:rgba(164,192,255,.22); }
.bell-stage h2 { margin:8px 0 14px; font-size:clamp(1.5rem,3vw,2.7rem); line-height:1.15; letter-spacing:-.025em; }
.bell-stage header p,.bell-help,.bell-notes p,.bell-notes li { color:#a5b5d4; line-height:1.7; }
.bell-chip { color:var(--bell-cyan); font:700 .72rem/1.5 ui-monospace,monospace; letter-spacing:.08em; }
.bell-state { display:inline-block; padding:7px 12px; color:#77e1ac; border:1px solid #77e1ac66; border-radius:999px; font:700 .75rem monospace; }
.bell-frame { margin-top:18px; border:1px solid #a4c0ff38; background:#07131f; border-radius:8px; overflow:hidden; }
#bellCanvas { display:block; width:100%; height:auto; aspect-ratio:1100/670; outline-offset:-4px; }
.bell-legend { display:flex; flex-wrap:wrap; gap:16px; margin:12px 0; font-size:.8rem; }
.bell-legend span:first-child { color:var(--bell-cyan); }.bell-legend span:last-child { color:var(--bell-amber); }
.bell-controls h2,.bell-card h2,.bell-notes h2 { font-size:1.25rem; line-height:1.4; margin:8px 0 16px; }
.bell-group { border-top:1px solid #a4c0ff38; padding-top:16px; margin-top:18px; }
.bell-group label { display:flex; justify-content:space-between; gap:12px; font-size:.85rem; margin-bottom:8px; }
.bell-buttons { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; }
.bell-buttons.bell-four { grid-template-columns:repeat(2,minmax(0,1fr)); }
.bell-app button,.bell-app input,.bell-app summary,.bell-app a[download] { min-height:44px; }
.bell-app button { padding:10px 8px; border:1px solid #a4c0ff55; border-radius:6px; color:#e8efff; background:#10243a; cursor:pointer; font:700 .75rem/1.3 ui-monospace,monospace; overflow-wrap:anywhere; }
.bell-app button:hover,.bell-app button[aria-pressed="true"] { background:#20415a; border-color:var(--bell-cyan); }
.bell-app button:disabled { opacity:.45; cursor:default; }
.bell-app :focus-visible { outline:2px solid var(--bell-cyan); outline-offset:3px; }
.bell-app input[type="range"] { width:100%; accent-color:var(--bell-cyan); margin:0; }
.bell-app input[type="number"] { width:100%; border:1px solid #a4c0ff55; background:#07131f; color:#e8efff; padding:9px; border-radius:5px; }
.bell-app input:invalid { border-color:#ff8f84; }
.bell-advanced { margin-top:16px; }.bell-advanced summary { cursor:pointer; padding:12px 0; }
.bell-help { font-size:.8rem; margin:10px 0; }.bell-live { min-height:3.2em; font-size:.88rem; line-height:1.6; }
.bell-metrics { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; margin:18px 0 0; }
.bell-metrics>div { min-width:0; padding:13px; border:1px solid #a4c0ff2f; border-radius:6px; background:#07131f88; }
.bell-metrics dt { color:#a5b5d4; font-size:.72rem; line-height:1.5; }.bell-metrics dd { margin:7px 0 0; color:var(--bell-cyan); font:700 clamp(1.05rem,2vw,1.6rem)/1.3 ui-monospace,monospace; overflow-wrap:anywhere; }
.bell-metrics .bell-classical dd { color:var(--bell-amber); }
.bell-results { display:grid; gap:20px; margin-top:20px; }.bell-table-wrap { overflow-x:auto; max-width:100%; }
.bell-app table { width:100%; border-collapse:collapse; font-size:.78rem; line-height:1.5; }
.bell-app th,.bell-app td { padding:10px; border-bottom:1px solid #a4c0ff2f; text-align:left; white-space:nowrap; }
.bell-app th { color:#a5b5d4; }.bell-output { display:flex; flex-wrap:wrap; gap:10px; margin-top:18px; }.bell-output button { flex:1; }
.bell-app pre { white-space:pre-wrap; overflow-wrap:anywhere; font-size:.8rem; line-height:1.6; max-height:32rem; overflow-y:auto; }
.bell-app details>summary { cursor:pointer; padding:12px 0; }.bell-app [hidden] { display:none!important; }
.bell-notes { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:20px; margin-top:20px; }
.bell-formula { display:grid; gap:20px; margin-top:20px; }.bell-formula>details,.bell-formula>.lab-observation-guide { padding:24px; }
.bell-formula code,.bell-notes code { overflow-wrap:anywhere; white-space:normal; }
.bell-lower-grid { max-width:1480px; margin:auto; padding:0 clamp(16px,3vw,44px) 40px; display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:20px; }.bell-lower-grid>.related-labs { grid-column:1/-1; }
@media(max-width:960px) { .bell-layout { grid-template-columns:minmax(0,1fr); }.bell-controls { display:block; }.bell-notes { grid-template-columns:1fr; } }
@media(max-width:560px) { .bell-app { padding:0 14px 30px; }.bell-stage,.bell-controls,.bell-card,.bell-notes>article { padding:16px; }.bell-stage h2 { font-size:1.65rem; }.bell-metrics { gap:7px; }.bell-metrics>div { padding:10px; }.bell-metrics dd { font-size:1.1rem; }.bell-lower-grid { grid-template-columns:minmax(0,1fr); padding:0 14px 30px; }.bell-live { min-height:4.8em; } }