:root{--ink:#202325;--muted:#666d70;--line:#d9dddc;--paper:#fff;--wash:#f6f7f6;--dark:#0f1314;font-family:Arial,Helvetica,system-ui,sans-serif;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}html,body,#app{margin:0;min-height:100%}body{min-width:320px;font-size:13px}button,textarea,input{font:inherit}button{border:1px solid var(--line);border-radius:2px;background:#fff;color:var(--ink);padding:7px 10px;cursor:pointer}button:hover,button.active{border-color:#8c9694;background:var(--wash)}button.primary{background:var(--ink);color:#fff;border-color:var(--ink)}button.ghost{border-color:transparent}.app{min-height:100vh;background:var(--paper)}
.topbar{height:48px;padding:0 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.identity{display:flex;align-items:baseline;gap:10px;white-space:nowrap}.identity strong{font-size:14px}.eyebrow,.label{text-transform:uppercase;font-size:10px;letter-spacing:.09em;color:var(--muted)}.text-link{color:var(--ink);text-decoration:none;font-size:12px}
.library{max-width:1060px;margin:0 auto;padding:38px 32px}.library-header{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;border-bottom:1px solid var(--line);padding-bottom:22px}.library h1,.record h1,.import-box h1{margin:4px 0 0;font-size:27px;font-weight:500}.metadata{color:var(--muted);font-size:12px;line-height:1.5}.scene-table{margin-top:22px;border-top:1px solid var(--line)}.scene-row{display:grid;grid-template-columns:1.25fr 1.1fr 1.35fr 1.25fr auto;gap:14px;align-items:center;min-height:66px;padding:10px 0;border-bottom:1px solid var(--line)}.table-head{min-height:auto;padding:8px 0;font-size:10px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}.mono{font-family:ui-monospace,Consolas,monospace;font-size:11px;overflow-wrap:anywhere}.empty-state{margin:56px 0;padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.empty-state h2{font-size:19px;font-weight:500}
.import-box{max-width:720px;margin:50px auto;padding:30px;border:1px solid var(--line)}.import-box textarea{display:block;width:100%;min-height:380px;padding:12px;border:1px solid var(--line);margin:18px 0;resize:vertical;font-family:ui-monospace,monospace;font-size:12px}.row{display:flex;justify-content:space-between;align-items:center;gap:10px}.build-message{min-height:21px;color:var(--muted);margin:8px 0}.build-message.error{color:#a54036}
.record{max-width:1040px;margin:0 auto;padding:38px 32px}.record-actions{display:flex;gap:8px;align-items:center;margin-top:24px}.record-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;margin-top:32px}.record section{border-top:1px solid var(--line);padding:14px 0 24px}.record h2{margin:0 0 10px;font-size:15px;font-weight:600}.formula{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;padding:9px;font-size:11px;background:var(--wash);border-left:2px solid #a7afac;line-height:1.5;overflow:auto}.keyvalue{display:grid;grid-template-columns:90px 1fr;row-gap:9px;font-size:12px}.viewpoints{display:flex;flex-direction:column;gap:6px}.viewpoints button{text-align:left}.viewpoints small{display:block;color:var(--muted);margin-top:3px}
.session-app{min-height:100vh}.explore{height:100vh;min-height:600px;background:var(--dark);color:#e8ece9;position:relative;overflow:hidden}.explore-canvas-wrap{position:absolute;inset:0;overflow:hidden}.gl{display:block;width:100%;height:100%;touch-action:none}.hud{position:absolute;top:14px;left:14px;display:flex;gap:6px;align-items:center;flex-wrap:wrap;max-width:calc(100% - 32px)}.hud button,.hud label{background:#202425;border:1px solid #454b4c;color:#e9edeb;padding:7px 9px;font-size:12px}.hud label{display:flex;align-items:center;gap:5px}.hud input{width:60px;accent-color:#a8b8b0}.hud button.active{border-color:#aab3ae;background:#303638}.hud-info{position:absolute;left:16px;bottom:14px;font-size:11px;color:#aeb7b2;line-height:1.5}.session-views{position:absolute;top:60px;left:14px;display:flex;align-items:center;gap:5px;max-width:calc(100% - 320px);flex-wrap:wrap}.session-views button{background:#202425;color:#e9edeb;border-color:#454b4c;font-size:11px}.observer{background:#202425;border-left:1px solid #464c4a;display:flex;flex-direction:column;min-height:0}.observer-head{padding:11px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #464c4a}.observer canvas{flex:1;min-height:120px;width:100%;display:block}.observer-meta{padding:11px;font-size:11px;color:#bfc7c2;line-height:1.55;border-top:1px solid #464c4a}.pip{position:absolute;width:270px;height:250px;right:16px;bottom:16px;z-index:5;border:1px solid #68716e}.pip.expanded{width:min(760px,calc(100vw - 64px));height:min(620px,calc(100vh - 100px));right:50%;bottom:50%;transform:translate(50%,50%);z-index:8}
@media(max-width:760px){.library,.record{padding:22px 16px}.library-header,.record-grid{display:block}.scene-row{grid-template-columns:1fr;gap:5px;padding:14px 0}.table-head{display:none}.record-actions{flex-wrap:wrap}.pip{width:190px;height:175px;right:10px;bottom:10px}.hud{top:8px;left:8px}.hud label{display:none}.pip.expanded{width:calc(100vw - 24px);height:calc(100vh - 80px);right:12px;bottom:12px;transform:none}.import-box{margin:20px 12px;padding:18px}.import-box textarea{min-height:320px}}