:root{font-family:"IBM Plex Sans",ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#25221D;background:#F4F1EB;font-synthesis:none;color-scheme:light}
*{box-sizing:border-box}
body{margin:0}
header{height:76px;border-bottom:1px solid #D7D0C4;padding:0 30px;display:flex;align-items:center;gap:28px}
.brand{color:inherit;text-decoration:none;font-size:20px;font-weight:600;letter-spacing:-.6px}
.mark{color:#76644D;margin-right:9px;font-size:28px}
.eyebrow{font-size:10px;letter-spacing:1.8px;color:#655E53}
.badge{margin-left:auto;border:1px solid #CFC5B6;border-radius:20px;color:#76644D;padding:7px 12px;font-size:11px}
main{display:grid;grid-template-columns:330px 1fr;height:calc(100dvh - 76px)}
aside{overflow:auto;padding:30px 26px;background:#ECE8DF;border-right:1px solid #D7D0C4}
h1{font-size:45px;line-height:1.03;letter-spacing:-2px;font-weight:450;margin:20px 0 14px}
.intro{font-size:12px;line-height:1.7;color:#5D574C;margin-bottom:23px}
figure{margin:0}
figure img{width:100%;display:block;border-radius:5px;min-height:80px;background:#E2DCD1}
figcaption{font-size:9px;letter-spacing:1.5px;color:#655E53;margin:9px 0 20px}
.stats{display:flex;gap:34px;border-top:1px solid #D7D0C4;border-bottom:1px solid #D7D0C4;padding:17px 0}
.stats strong{font-size:19px;font-weight:450;display:block}
.stats span{font-size:10px;color:#655E53;display:block;margin-top:5px}
fieldset{border:0;padding:18px 0 0;margin:0}
legend{padding-top:22px;font-size:13px}
label{display:block;font-size:11px;color:#5D574C;margin:15px 0}
output{float:right;color:#25221D}
input[type=range]{display:block;width:100%;accent-color:#76644D;margin-top:12px}
select{font:inherit;display:block;width:100%;background:#F4F1EB;color:#25221D;border:1px solid #C9C0B2;border-radius:5px;padding:8px;margin-top:8px}
.check{display:flex;gap:8px;align-items:center}
.check input{accent-color:#76644D}
.buttons{display:flex;gap:8px}
button{background:#76644D;color:#F4F1EB;border:0;border-radius:5px;padding:10px 13px;font:inherit;font-size:11px;cursor:pointer}
.buttons button{flex:1}
.wide{width:100%;background:#F4F1EB;border:1px solid #C9C0B2;color:#534635;margin-top:9px}
button:disabled,fieldset:disabled{opacity:.6}
.note{font-size:10px;line-height:1.7;color:#655E53;margin:23px 0}
details{font-size:11px;color:#5D574C}
summary{cursor:pointer}
#files a{display:block;color:#76644D;margin:12px 0}
#viewport{position:relative;overflow:hidden;min-width:0;background:#F4F1EB}
#viewport canvas{display:block;width:100%;height:100%;touch-action:none}
.view-label{position:absolute;top:24px;left:26px;font-size:10px;letter-spacing:1.5px;color:#5D574C;pointer-events:none}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#76644D;margin-right:6px}
.view-footer{position:absolute;bottom:22px;left:26px;right:26px;display:flex;justify-content:space-between;gap:18px;font-size:10px;color:#655E53;pointer-events:none}
#message{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;max-width:450px;width:85%;padding:28px;background:#F4F1EBF2;border:1px solid #D7D0C4;border-radius:10px}
#message h2{font-size:22px;font-weight:450;line-height:1.4}
#message p{font-size:12px;line-height:1.7;color:#5D574C}
#message code{font-size:10px;overflow-wrap:anywhere}
#inspection{position:absolute;right:22px;top:22px;padding:14px 18px;background:#F4F1EBF5;border:1px solid #C9C0B2;border-radius:7px;font-size:11px;line-height:1.8;white-space:pre-line;color:#25221D}
:focus-visible{outline:2px solid #76644D;outline-offset:4px}
@media(max-width:800px){header{padding:0 18px;height:65px}
header>.eyebrow{display:none}
main{grid-template-columns:270px 1fr;height:calc(100dvh - 65px)}
aside{padding:24px 18px}
h1{font-size:38px}
.view-footer{flex-direction:column}
}
@media(max-width:580px){main{display:flex;flex-direction:column;height:auto}
#viewport{order:-1;height:58dvh;min-height:350px}
aside{overflow:visible;border:0}
figure{max-width:320px}
h1 br{display:none}
.intro{margin-bottom:15px}
.view-footer{font-size:9px;left:16px;bottom:16px}
}


input,select,button,code{font-family:inherit}

button:not(:disabled):hover{background:#61503D}

.wide:not(:disabled):hover{background:#E2DCD1}

#files a:hover{color:#534635}

[hidden]{display:none!important}
#temporal-controls{position:absolute;z-index:2;bottom:60px;left:50%;transform:translateX(-50%);width:min(560px,calc(100% - 40px));padding:14px 18px;background:#ECE8DFF2;border:1px solid #C9C0B2;border-radius:12px;box-shadow:0 4px 24px #53463515}
.timeline-actions{display:flex;align-items:center;gap:10px}
#crossfade-toggle{white-space:nowrap;background:#F4F1EB;color:#534635;border:1px solid #C9C0B2}
#crossfade-toggle[aria-pressed=true]{background:#76644D;color:#F4F1EB;border-color:#76644D}
#play-toggle{min-width:58px}
#blend-label{margin-left:auto;font-size:11px;color:#5D574C;text-align:right}
.timeline-track{display:flex;align-items:center;gap:12px;margin-top:12px}
.timeline-track label{margin:0}
.timeline-track input{flex:1;min-width:0;margin:0}
#time-label{float:none;min-width:50px;font-size:11px;font-variant-numeric:tabular-nums;text-align:right}
@media(max-width:800px){#temporal-controls{bottom:80px}.timeline-actions{flex-wrap:wrap}#blend-label{width:100%;margin-left:0;text-align:left}}


.timeline-actions{flex-wrap:wrap}.timeline-actions label{display:flex;align-items:center;gap:6px;font-size:12px}.timeline-actions select{padding:6px;width:auto}

.timeline-actions label{margin:0}.timeline-actions select{margin:0}

.sam-review{display:inline-flex;align-items:center;padding:10px 13px;border-radius:6px;background:#76644D;color:#F4F1EB;font-size:12px;text-decoration:none;white-space:nowrap}
.sam-review:hover{background:#61503D}
@media(max-width:580px){header:has(.sam-review:not([hidden])){height:auto;min-height:65px;flex-wrap:wrap;gap:10px;padding:12px 16px}header:has(.sam-review:not([hidden])) .badge{display:none}}

/* XR entry remains visible on desktop; its wrapper exposes disabled-button help. */
.viewport-tools{display:flex;align-items:center;gap:8px}
.xr-entry{position:relative;display:inline-flex;pointer-events:auto}
#enter-vr{height:34px;border:1px solid #cbd1d5;border-radius:18px;background:#fff;color:#172b39;padding:0 13px;font:500 12px system-ui;white-space:nowrap;cursor:pointer}
#enter-vr:disabled{color:#8b9299;background:#e8ebed;border-color:#dce0e3;cursor:not-allowed;pointer-events:none}
#xr-tooltip{position:absolute;top:calc(100% + 9px);left:0;width:260px;padding:10px 12px;border-radius:9px;background:#182a38;color:#fff;font:12px/1.5 system-ui;box-shadow:0 4px 16px #0002;visibility:hidden;opacity:0;z-index:40;pointer-events:none}
.xr-entry:hover #xr-tooltip,.xr-entry:focus #xr-tooltip,.xr-entry:focus-within #xr-tooltip{visibility:visible;opacity:1}
@media(max-width:600px){#enter-vr{height:30px;padding:0 10px}#xr-tooltip{left:-70px;width:220px}}