/* A quiet technical plate, within the existing paper-and-cobalt identity. */
.about-grid:has(.structure-study){grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:clamp(40px,6vw,88px);align-items:center}
.about-grid .structure-study{width:100%;max-width:none;min-width:0;order:0}
.study-panel{background:#edf0ec;border:1px solid #c7d1cc;color:#244d9c}
.study-topline{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:19px 22px 16px;font:10px/1.5 Manrope,Arial,sans-serif;letter-spacing:.13em}
.study-topline>span:last-child{color:#687b80;font-size:9px;letter-spacing:.06em}
.study-modes{display:none;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid #c7d1cc;padding-inline:10px}
.study-initialized .study-modes{display:grid}
.study-modes button{min-height:46px;border:0;border-bottom:2px solid transparent;background:none;color:#617177;font-size:11px;padding:9px 4px;cursor:pointer}
.study-modes button[aria-pressed=true]{color:var(--blue);border-bottom-color:var(--blue);font-weight:650}
.study-modes button:hover{color:var(--blue);background:#e5eae7}
.study-modes button:focus-visible{outline-offset:-4px}
.study-viewport{position:relative;width:100%;aspect-ratio:1.5;min-height:220px;isolation:isolate}
.study-canvas,.study-still{position:absolute;inset:0;width:100%;height:100%}
.study-canvas{z-index:1;pointer-events:none}
.study-canvas canvas{display:block;width:100%;height:100%}
.about-grid .study-still{width:100%;height:100%;aspect-ratio:auto;object-fit:contain}
.study-rendered .study-still{visibility:hidden}
.study-view-label{position:absolute;top:18px;left:22px;z-index:2;font:9px/1.5 Manrope,Arial,sans-serif;letter-spacing:.07em;color:#697d84}
.study-axis-label{position:absolute;right:22px;bottom:17px;font:8px/1.5 Manrope,Arial,sans-serif;letter-spacing:.12em;color:#697d84}
.study-legend{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:4px 22px 18px;color:#65757b;font-size:9px;line-height:1.5}
.study-key{display:flex;align-items:center;gap:9px}
.study-key i{display:flex;gap:2px}
.study-key i:before,.study-key i:after{content:'';display:block;width:16px;height:3px;background:#3964bd}
.study-key i:after{background:#bb643b}
.study-key>span{font-size:8px;letter-spacing:.04em}
.study-playback{display:none;border-top:1px solid #c7d1cc;align-items:center;gap:12px;padding:0 18px 0 22px;min-height:52px}
.study-animated .study-playback{display:flex}
.study-phase{font-size:10px;line-height:1.5;color:#526a76;flex:1;min-width:0}
.study-playback button{display:inline-flex;justify-content:center;align-items:center;gap:7px;min-height:44px;border:0;background:none;color:var(--blue);font-size:10px;cursor:pointer;padding:8px 4px;white-space:nowrap}
.study-playback button:hover{text-decoration:underline;text-underline-offset:4px}
.study-playback button:focus-visible{outline-offset:0}
.study-playback button[hidden]{display:none}
.study-playback svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:1.4}
.about-grid .structure-study figcaption{display:flex;justify-content:space-between;gap:15px;font-size:10px;line-height:1.7;padding-top:12px;color:#6c7771}
.structure-study figcaption>span:last-child{color:#48617d}
@media(max-width:1000px){.about-grid:has(.structure-study){grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:35px}.study-topline{padding-inline:16px;font-size:9px}.study-view-label{left:16px}.study-legend{padding-inline:16px}.study-playback{padding-inline:16px}}
@media(max-width:780px){.about-grid:has(.structure-study){grid-template-columns:1fr;gap:32px}.about-grid .structure-study{max-width:600px;width:100%;order:0}.study-viewport{aspect-ratio:1.45;min-height:220px}.study-topline{font-size:10px;padding:16px 18px}.study-view-label{left:18px}.study-legend{padding:4px 18px 16px}.study-playback{padding-inline:18px}.study-modes button{font-size:11px}}
@media(max-width:360px){.study-topline{font-size:8px;padding:14px 12px}.study-topline>span:last-child{font-size:8px}.study-modes{padding-inline:4px}.study-modes button{font-size:10px}.study-viewport{min-height:205px}.study-view-label{left:12px;top:14px;font-size:8px}.study-axis-label{right:12px;font-size:7px}.study-legend{padding:0 12px 14px;gap:8px;font-size:8px}.study-key{gap:6px}.study-key i:before,.study-key i:after{width:10px}.study-playback{padding-inline:12px;gap:10px}.study-phase{font-size:9px}.study-playback button{font-size:9px}.about-grid .structure-study figcaption{font-size:9px;flex-wrap:wrap;gap:3px 12px}}

/* The selected study fills quietly as the automatic sequence advances. */
.study-modes button{position:relative}
.study-animated .study-modes button[aria-pressed=true]{border-bottom-color:#b0bfcf}
.study-animated .study-modes button[aria-pressed=true]:after{content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--blue);transform:scaleX(var(--study-progress,0));transform-origin:left}