:root{--bg-top: #f4f3fb;--bg-bottom: #dcd9ee;--ink: #2b2740;--ink-soft: rgba(43, 39, 64, .65);--accent: #6c63ff;--surface: rgba(255, 255, 255, .55);--surface-border: rgba(43, 39, 64, .1);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;color:var(--ink);background:linear-gradient(160deg,var(--bg-top),var(--bg-bottom))}#app{position:relative;width:100vw;height:100vh}#scene{position:absolute;top:0;right:0;bottom:0;left:0;display:block;width:100%;height:100%;touch-action:none;cursor:grab}#scene:active{cursor:grabbing}.overlay{position:absolute;left:0;right:0;display:flex;padding:clamp(1rem,4vw,2.5rem);pointer-events:none}.overlay--top,.overlay--bottom{-webkit-user-select:none;user-select:none}.overlay--bottom .footer-actions{display:flex;gap:.6rem}.overlay--bottom #autorotate-toggle,.overlay--bottom #drop-note-toggle{pointer-events:auto}.overlay--top{top:0;flex-direction:column;gap:.35rem}.overlay--top h1{margin:0;font-size:clamp(1.4rem,3vw,2rem);font-weight:700;letter-spacing:-.01em}.overlay--top p{margin:0;max-width:32ch;font-size:.95rem;color:var(--ink-soft)}.overlay--bottom{bottom:0;align-items:center;justify-content:space-between;gap:1rem}.overlay--bottom p{margin:0;font-size:.85rem;color:var(--ink-soft)}.overlay--bottom .hint-scroll{display:inline}@media (hover: none){.overlay--bottom .hint-drag:after{content:" with one finger"}.overlay--bottom .hint-scroll{display:none}.overlay--bottom p:after{content:" · pinch to zoom"}}#autorotate-toggle{font:inherit;font-size:.85rem;font-weight:600;color:var(--ink);background:var(--surface);border:1px solid var(--surface-border);border-radius:999px;padding:.55rem 1.1rem;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:background .15s ease,transform .15s ease}#autorotate-toggle:hover{background:#ffffffbf}#autorotate-toggle[aria-pressed=true],#drop-note-toggle[aria-pressed=true]{background:var(--accent);color:#fff;border-color:transparent}#scene.is-placing{cursor:crosshair}.note-form-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#2b274059;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:20}.note-form-overlay[hidden]{display:none}.note-form{width:min(380px,90vw);display:flex;flex-direction:column;gap:.6rem;padding:1.5rem;border-radius:16px;background:#fffdf5;box-shadow:0 20px 60px #2b274059}.note-form h2{margin:0 0 .25rem;font-size:1.1rem}.note-form label{font-size:.8rem;font-weight:600;color:var(--ink-soft)}.note-form label span{font-weight:400}.note-form textarea,.note-form input{font:inherit;padding:.6rem .7rem;border-radius:10px;border:1px solid var(--surface-border);background:#fff;resize:none}.note-form-actions{display:flex;justify-content:flex-end;gap:.6rem;margin-top:.4rem}.ghost-button,.primary-button{font:inherit;font-weight:600;font-size:.85rem;padding:.55rem 1.1rem;border-radius:999px;border:1px solid var(--surface-border);background:#fff;cursor:pointer}.primary-button{background:var(--accent);color:#fff;border-color:transparent}.overlay--center{top:0;bottom:0;align-items:center;justify-content:center;flex-direction:column;gap:.75rem;transition:opacity .4s ease}.overlay--center p{margin:0;font-size:.9rem;color:var(--ink-soft)}.overlay--center.is-hidden{opacity:0;pointer-events:none}.loading-spinner{width:2rem;height:2rem;border-radius:50%;border:3px solid var(--surface-border);border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}