:root{--blue:#3578c4;--text:#4a4a4a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:'Noto Sans',Arial,sans-serif;font-size:16px;line-height:1.5;color:var(--text);background:#fff}a{color:#3273dc;text-decoration:none}a:hover{color:#245892}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #8ab8ed;outline-offset:4px}img,video{display:block;width:100%;max-width:100%}figure{margin:0}p{margin:0}h1,h2{font-family:'Google Sans','Noto Sans',sans-serif}h2{margin:0 0 24px;text-align:center;color:var(--blue);font-size:32px;font-weight:600;line-height:1.125;letter-spacing:-.025em}.hero{height:100vh;height:100svh;min-height:540px;position:relative;overflow:hidden;display:flex;flex-direction:column;color:white;background:#333}.hero>video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}.overlay{position:absolute;inset:0;background:rgba(0,0,0,.4);z-index:1}.hero-head{z-index:2;height:52px;display:flex;justify-content:flex-end;align-items:center;gap:32px;width:100%;padding:0 max(24px,calc((100% - 1344px)/2));flex-shrink:0}.hero-head a{color:white;font-size:20px}.hero-head a:hover{color:#ddd}.hero-body{z-index:2;position:relative;flex:1;display:flex;align-items:center;justify-content:center;padding:48px 24px;pointer-events:none}.hero-titles{width:100%;max-width:1344px;text-align:center}.hero h1{font-size:80px;line-height:1.125;font-weight:600;margin:0 0 4px;letter-spacing:-.025em;color:#fff}.hero-subtitle{font-family:'Google Sans','Noto Sans',sans-serif;font-size:48px;line-height:1.25;font-weight:400;margin:0;color:rgba(255,255,255,.9)}.hero-venue{font-size:28px;font-weight:600;line-height:1.25;margin:24px 0 0;color:rgba(255,255,255,.9)}.mobile-links{display:none}.hero button{position:absolute;z-index:3;bottom:16px;right:20px;color:white;background:rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.4);border-radius:3px;padding:4px 12px;font-size:16px}.section{padding:48px 24px}.content-width{width:100%;max-width:1200px;margin:0 auto;padding:0}.content-width:not(.single-width){width:76%}.single-width{max-width:820px}.section-text{text-align:justify;margin:0 0 24px;line-height:1.5}.video-row{display:grid;gap:20px}.two-columns{grid-template-columns:1fr 1fr}.section video{aspect-ratio:16/9;object-fit:contain;background:#ececec;box-shadow:0 4px 16px rgba(0,0,0,.15)}figcaption{font-family:'Google Sans','Noto Sans',sans-serif;font-size:16px;color:#3273dc;line-height:1.5;margin-top:8px;text-align:center}.overview-placeholder{aspect-ratio:16/9;background:#f5f5f5;display:flex;justify-content:center;align-items:center;text-align:center;color:#707070}.overview-placeholder p{font-size:24px;font-family:'Google Sans',sans-serif}.overview-placeholder span{display:block;margin-top:12px;font-size:15px}.sidebar-nav{position:fixed;left:12px;top:50%;transform:translateY(-50%);z-index:10;max-width:140px;opacity:0;pointer-events:none;transition:opacity .3s}.sidebar-nav.visible{opacity:1;pointer-events:auto}.sidebar-nav ul{list-style:none;padding:0;margin:0;border-left:2px solid #ccdcf2}.sidebar-nav a{display:block;padding:5px 0 5px 10px;color:#8badd6;font-size:13.6px;line-height:1.3;font-family:'Google Sans','Noto Sans',sans-serif;border-left:2px solid transparent;margin-left:-2px}.sidebar-nav a:hover{color:var(--blue)}.sidebar-nav a.active{color:var(--blue);font-weight:600;border-left-color:var(--blue)}.protocol-text{margin-top:24px}.table-scroll{overflow-x:auto;margin:24px 0}.table-scroll table{width:100%;border-collapse:collapse;font-size:14px;white-space:nowrap}.table-scroll caption{font-size:13px;color:#777;text-align:left;margin-bottom:12px;white-space:normal}.table-scroll th,.table-scroll td{padding:9px 11px;text-align:center;border-bottom:1px solid #ddd}.table-scroll th:first-child{text-align:left}.table-scroll thead{border-top:2px solid #666;border-bottom:1px solid #777}.table-scroll tbody th{font-weight:400}.table-scroll tr:last-child{border-bottom:2px solid #666}.ours-row{font-weight:600;background:#f4f7fa}.ours-row th{font-weight:600!important}.pending-row{color:#888}.table-scroll+.section-text{margin-top:28px}details{margin-top:20px}summary{cursor:pointer;font-weight:600;color:var(--blue);text-align:center;padding:8px}.table-note{font-size:13px;line-height:1.5}.setup-figure{max-width:720px;margin:auto}.method-note{margin-top:24px}footer{background:#fafafa;padding:40px 24px;text-align:center;font-size:13px}footer>a{display:inline-block;margin-top:12px}.skip-link{position:fixed;top:-80px;left:20px;z-index:30;background:white;padding:10px}.skip-link:focus{top:10px}
@media(min-width:1600px){.content-width:not(.single-width){width:76%}}
@media(max-width:1100px){.sidebar-nav{display:none}.content-width:not(.single-width){width:90%}.hero h1{font-size:64px}.hero-subtitle{font-size:40px}.hero-venue{font-size:24px}}
@media(max-width:768px){.hero{min-height:520px}.hero-head{display:none}.hero-body{padding:48px 24px}.hero h1{font-size:48px;line-height:1.125;margin-bottom:8px}.hero-subtitle{font-size:24px;line-height:1.25}.hero-venue{font-size:16px;line-height:1.25;margin-top:28px}.desktop-break{display:none}.mobile-links{display:flex;justify-content:center;gap:7px;margin-top:20px;pointer-events:auto}.mobile-links a{background:#363636;color:white;border-radius:24px;padding:7px 16px;font-size:16px}.hero>video{object-position:56% center}.section{padding:40px 20px}.content-width:not(.single-width){width:100%}h2{font-size:24px;line-height:1.2}.section-text{text-align:left;font-size:15px;line-height:1.6}.two-columns{grid-template-columns:1fr;gap:28px}figcaption{font-size:14px}.overview-placeholder p{font-size:20px}.overview-placeholder span{font-size:12px;padding:0 20px}.table-scroll table{font-size:12px}.table-scroll th,.table-scroll td{padding:8px}.hero button{bottom:12px;right:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.sidebar-nav{transition:none}}

/* Evaluation recordings: fetch video only after an explicit play action. */
.trial-instruction{font-size:14px;color:#666;margin-top:24px}
#success-table td:has(.trial-cell){padding:0}
.trial-cell{display:block;width:100%;padding:9px 11px;border:0;background:transparent;color:#2865a6;text-decoration:underline;text-underline-offset:4px;text-decoration-color:#b8cde6;font:inherit}
.trial-cell:hover{background:#edf4fc;color:#194b80}
.trial-cell[aria-expanded=true]{background:#e6effa;box-shadow:inset 0 -2px #3578c4;color:#194b80;font-weight:600}
.trial-gallery{margin:8px 0 30px;padding:22px 0 18px;border-top:1px solid #d8e0e9;border-bottom:1px solid #d8e0e9;scroll-margin:24px}
.trial-gallery[hidden],.trial-navigation[hidden],.trial-play[hidden],.trial-error[hidden]{display:none}
.trial-gallery-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.trial-gallery h3{font-family:'Google Sans','Noto Sans',sans-serif;font-size:21px;font-weight:500;line-height:1.3;color:#303943;margin:0 0 4px}
#trial-summary,.trial-navigation p,.trial-duration{font-size:13px;color:#737b84}
.trial-close{border:0;background:none;font-size:26px;line-height:1;padding:4px 8px;color:#737b84}
#trial-loading:not(:empty){padding:20px 0;color:#737b84;font-size:14px}
.trial-navigation{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:18px 0 10px}
.trial-navigation>div{display:flex;gap:8px}
.trial-navigation button{background:white;color:#3578c4;border:1px solid #d8e0e9;width:36px;height:32px;font-size:19px;line-height:1;border-radius:3px}
.trial-navigation button:disabled{opacity:.3;cursor:default}
.trial-strip{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;padding:2px 0 12px;scrollbar-width:thin;scrollbar-color:#c5d1df #f5f7fa}
.trial-card{flex:0 0 calc((100% - 40px)/2.15);min-width:0;scroll-snap-align:start}
.trial-card figcaption{display:flex;align-items:center;justify-content:space-between;gap:8px;text-align:left;font-family:inherit;font-size:14px;color:#444;margin:0 0 8px}
.trial-outcome{font-size:12px;font-weight:500}.trial-outcome.success{color:#26734c}.trial-outcome.failure{color:#b94343}
.trial-media{position:relative;background:#f2f4f6}
.trial-media video{aspect-ratio:4/3;box-shadow:none;background:#f2f4f6;object-fit:contain}
.trial-play{position:absolute;inset:0;display:grid;place-items:center;border:0;background:transparent;color:white}
.trial-play span{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:rgba(22,32,44,.68);padding-left:3px;font-size:19px;transition:background .15s}
.trial-play:hover span{background:#3578c4}
.trial-duration{margin-top:7px}
.trial-error{font-size:13px;color:#b94343;margin-top:8px}
@media(max-width:768px){.trial-cell{padding:10px 9px;min-height:42px}.trial-card{flex-basis:88%}.trial-gallery h3{font-size:19px}.trial-navigation p{font-size:12px}.trial-strip{gap:20px}.trial-gallery{padding-top:18px}}

.trial-timing-note{margin-top:8px;color:#737b84;font-size:12px;line-height:1.5}

.implementation-note{margin:0;border-bottom:1px solid #d8e0e9}
.implementation-note summary{text-align:left;padding:18px 0;font-weight:500}
.note-content{padding:4px 0 24px}
.note-content p{margin-bottom:20px;line-height:1.65}
.note-content .video-row{margin:24px 0}
.note-content figcaption{font-size:14px}
.note-content figcaption span{display:block;margin-top:4px;font:12px/1.5 'Noto Sans',sans-serif;color:#737b84}
.note-content .hardware-probe{max-width:560px;margin:24px auto 0}
.hardware-probe video{aspect-ratio:4/3}