@layer experience {
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#071822;color:#eef6f8}
button,input,a{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}
button{cursor:pointer;font:inherit}button:disabled{opacity:.4;cursor:wait}[hidden]{display:none!important}
body:not([data-view="landing"]){height:100dvh;overflow:hidden}
body:not([data-view="landing"]) canvas{position:fixed!important;inset:0!important;width:100%!important;height:100%!important;z-index:0}
body[data-view="landing"] canvas{visibility:hidden}
button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid #d0f2f8;outline-offset:4px}
#lab{position:fixed;inset:0;z-index:5;pointer-events:none;--accent:#c9e8f3}
#lab button,#lab input,#lab nav{pointer-events:auto}
.lab-header{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;gap:10px;padding:calc(18px + env(safe-area-inset-top)) 24px 35px;background:linear-gradient(#06152465,transparent)}
.lab-brand{flex:1;font-size:13px;font-weight:500;letter-spacing:.22em;text-shadow:0 1px 10px #0005;padding-left:6px}
.lab-brand span{display:block;margin-top:5px;font-size:7px;letter-spacing:.12em;opacity:.7}
.icon-button,.capture-button{display:grid;place-items:center;width:44px;height:44px;padding:0;border:1px solid #ffffff30;border-radius:50%;background:#0e263655;backdrop-filter:blur(18px);color:#fff;flex-shrink:0}
.icon-button svg,.capture-button svg{width:20px;height:20px}.icon-button:hover{background:#173c50aa}.icon-button[aria-pressed="true"]{background:#deeff5;color:#102f42}
#exit{font-size:27px;font-weight:300}.capture-button{width:48px;height:48px;background:#edf6f7;color:#173249;border:4px solid #edf6f7;box-shadow:inset 0 0 0 1px #17324955}
.lab-caption{position:absolute;left:26px;top:calc(95px + env(safe-area-inset-top));font-size:7px;letter-spacing:.13em;color:#ffffff99;text-shadow:0 1px 5px #0006}
.instrument{position:absolute;bottom:calc(20px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:min(430px,calc(100% - 28px));border:1px solid #ffffff25;border-radius:24px;background:linear-gradient(140deg,#102633b8,#092637c4);backdrop-filter:blur(26px);box-shadow:0 15px 40px #05152124;color:#f2f8fa;padding:6px 14px 4px}
.effect-heading{display:flex;align-items:center;gap:10px;height:45px}
#effect-index{font-size:10px;font-variant-numeric:tabular-nums;color:#bfd2df80}
#lesson-title{flex:1;margin:0;font-size:17px;line-height:1.2;font-weight:400;letter-spacing:-.02em;white-space:nowrap}
.effect-heading .icon-button{border:0;background:transparent;backdrop-filter:none;width:40px;height:40px;color:#d6e5ed}
.effect-heading .icon-button svg{width:17px;height:17px}.effect-heading .icon-button[aria-pressed="true"]{color:#91dce6}
.flash-button{min-height:36px;border:1px solid #cad8ff40;border-radius:18px;background:#a5b9ef22;color:#e5eaff;font-size:10px;padding:0 10px}
.strength-control{padding:1px 4px 0}
.strength-control label{display:flex;justify-content:space-between;font-size:9px;letter-spacing:.03em;color:#c6dae7}
.strength-control output{font-variant-numeric:tabular-nums;color:#e4f3f8;font-size:10px}
input[type="range"]{appearance:none;-webkit-appearance:none;background:transparent;cursor:ew-resize;width:100%;height:44px;margin:0;touch-action:none;user-select:none;-webkit-user-select:none;--fill:50%}
input[type="range"]::-webkit-slider-runnable-track{height:4px;border-radius:4px;background:linear-gradient(to right,#c9ebf7 var(--fill),#a8c8d24a var(--fill))}
input[type="range"]::-moz-range-track{height:4px;border-radius:4px;background:linear-gradient(to right,#c9ebf7 var(--fill),#a8c8d24a var(--fill))}
input[type="range"]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:26px;height:26px;background:#eefaff;border:5px solid #c9e6f0;border-radius:50%;margin-top:-11px;box-shadow:0 1px 10px #081c3255}
input[type="range"]::-moz-range-thumb{width:22px;height:22px;background:#eefaff;border:2px solid #c9e6f0;border-radius:50%}
#topics{display:grid;grid-template-columns:repeat(6,1fr);gap:3px;border-top:1px solid #e8f4ff16;padding:4px 0 1px}
#topics button{border:0;background:transparent;border-radius:12px;min-width:0;min-height:55px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:4px 1px;color:#adc4d1;font-size:9px;white-space:nowrap;transition:background .25s,color .25s}
#topics button[aria-pressed="true"]{background:#e6f5ff15;color:#f4fbff}
#topics svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.25;fill:none}
.sky-guidance{position:absolute;top:calc(122px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;max-width:calc(100% - 30px);white-space:nowrap;padding:5px 12px;border:1px solid #c6dce52b;border-radius:30px;background:#0a233080;backdrop-filter:blur(15px)}
.sky-guidance p{font-size:10px;line-height:1.4;margin:0;color:#e0eff6}.sky-guidance button{border:0;background:transparent;color:#c6e8ef;font-size:9px;min-height:34px;padding:0 3px 0 8px}
.live-dot{width:4px;height:4px;border-radius:50%;background:#b9ecf1}
#toast{position:absolute;left:50%;top:23%;transform:translateX(-50%);padding:12px 18px;border-radius:22px;background:#092536d9;color:#e0eff6;font-size:11px;max-width:calc(100% - 35px);text-align:center;line-height:1.5;border:1px solid #adcfe92d;backdrop-filter:blur(16px)}
/* Information is secondary and appears only on explicit request. */
dialog{position:fixed;border:1px solid #cfebf333;background:#0c2433f5;backdrop-filter:blur(24px);color:#eaf4f9;border-radius:24px;width:min(440px,calc(100% - 24px));max-height:83dvh;padding:22px;z-index:50;box-shadow:0 20px 80px #020a1680}
dialog::backdrop{background:#03111b45;backdrop-filter:blur(4px)}
.dialog-bar{display:flex;align-items:center;justify-content:space-between;gap:10px}.small-label{font-size:8px;letter-spacing:.14em;color:#9fbcc9}
.dialog-bar button{width:44px;height:44px;border:0;background:transparent;color:#d7e9ee;font-size:23px;padding:0}
.dialog-bar+h2{font-size:23px;letter-spacing:-.025em;font-weight:400;margin:8px 0 24px}
#controls{display:grid;gap:24px}.control label{display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:11px;line-height:1.5;color:#c6dce5}.control output{font-size:12px;white-space:nowrap;color:#e9f7fb;font-variant-numeric:tabular-nums}.control input{height:44px}
.adjust-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px}.adjust-actions button{border:1px solid #9ec8d62f;background:#a4d8eb0a;border-radius:20px;padding:10px 14px;font-size:10px;min-height:40px;color:#c9e5ef}#details{margin-left:auto}
#lesson-description,#learn-copy{font-size:12px;line-height:1.75;color:#b9d0dd}#mechanism-diagram svg{width:100%;height:160px;overflow:visible}.diagram-label{font:11px Arial;fill:#c7e6f1}.diagram-small{font:9px Arial;fill:#97b8c9}
#metrics{display:grid;grid-template-columns:1fr 1fr;gap:15px;padding:14px 0;border-block:1px solid #ffffff19;margin:12px 0}.metric span{display:block;font-size:9px;color:#98b3c3;line-height:1.4}.metric strong{display:block;font-size:12px;font-weight:400;margin-top:5px}
summary{cursor:pointer;font-size:11px;color:#c6e4ef;min-height:40px;line-height:40px}#learn-source{display:inline-block;color:#c1eaf4;padding:8px 0;font-size:11px}.dialog-note{font-size:10px;line-height:1.6;color:#839fae}.motion-option{display:flex;align-items:center;gap:10px;font-size:11px;min-height:40px}.motion-option input{width:18px;height:18px;accent-color:#a4d1df}
#photo-image{width:100%;border-radius:12px;max-height:46dvh;object-fit:contain}#photo-notes{font-size:11px;line-height:1.6;color:#c6dce5}.download-button{display:block;text-align:center;background:#d0e9ee;border-radius:24px;color:#0b2a3a;padding:14px;text-decoration:none;font-size:12px}
#system-state{position:fixed;inset:0;z-index:30;background:#061621ed;display:grid;place-items:center;backdrop-filter:blur(16px);padding:24px}.system-card{width:min(350px,100%);text-align:center}.system-card h2{font-size:24px;letter-spacing:-.03em;font-weight:400}.system-card p{font-size:12px;line-height:1.7;color:#a7c1ce;min-height:40px}.system-orbit{width:48px;height:48px;margin:0 auto 27px;border:1px solid #55768540;border-top-color:#cceaf2;border-radius:50%;animation:spin 1.5s linear infinite}.system-actions{display:flex;flex-direction:column;gap:8px;margin-top:25px}.system-actions button{min-height:44px;background:#c9e2ee0b;border:1px solid #a9d3e124;border-radius:24px;color:#cce0e9;font-size:12px}#system-preview{background:#c9e2ee12}#system-state[data-phase="error"] .system-orbit{animation:none;border-color:#859daa}#cancel{border-color:transparent;background:transparent;color:#7897a8}
@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:760px){.lab-header{padding:calc(12px + env(safe-area-inset-top)) 16px 28px;gap:8px}.lab-caption{left:19px;top:calc(86px + env(safe-area-inset-top));font-size:6px}.lab-brand{font-size:12px}.instrument{bottom:calc(12px + env(safe-area-inset-bottom));border-radius:23px;padding:4px 12px 3px}.effect-heading{height:38px}#topics button{min-height:48px;font-size:8px}.strength-control label{font-size:9px}.sky-guidance{top:calc(112px + env(safe-area-inset-top))}dialog{margin:auto auto calc(12px + env(safe-area-inset-bottom));max-height:80dvh}}
@media(max-width:350px){.lab-header{gap:6px;padding-inline:12px}.instrument{width:calc(100% - 20px);padding-inline:9px}#lesson-title{font-size:15px}.effect-heading{gap:6px}.effect-heading .icon-button{width:36px}.flash-button{font-size:9px;padding-inline:7px}#topics svg{width:20px;height:20px}.sky-guidance{padding-inline:9px;gap:5px}.sky-guidance p{font-size:9px}}
@media(max-height:500px) and (orientation:landscape){.instrument{left:auto;right:12px;transform:none;width:350px;bottom:12px}.lab-header{right:365px;padding:12px}.lab-brand{font-size:10px;padding:0}.lab-brand span{display:none}.lab-caption{top:75px;left:17px}.sky-guidance{top:104px;left:16px;transform:none;max-width:calc(100% - 390px);white-space:normal}.sky-guidance button{display:none}dialog{max-height:90dvh;margin:auto}.capture-button{width:44px;height:44px}}
@media(prefers-reduced-motion:reduce){.system-orbit{animation:none}*{scroll-behavior:auto!important;transition:none!important}}

@media(max-width:650px) and (max-height:500px) and (orientation:landscape){.lab-header .lab-brand{display:none}.lab-header{gap:8px;justify-content:flex-start}}

input[type="range"][data-dragging="true"]::-webkit-slider-thumb{box-shadow:0 0 0 7px #bfe9ff22,0 2px 12px #02132070}

}