:root{--background:#f8fafc;--foreground:#0f172a;--panel:rgba(255,255,255,0.74);--panel-dark:rgba(15,23,42,0.62);--border:rgba(148,163,184,0.22);--primary:#2563eb;--primary-dark:#1d4ed8;--danger:#e11d48;--success:#059669}*{box-sizing:border-box}body,html{width:100%;min-height:100%;margin:0;background:var(--background);color:var(--foreground);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Tahoma,Arial,sans-serif}body{overflow:hidden}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}.app-shell{position:relative;width:100vw;min-height:100vh;overflow:hidden;background:radial-gradient(circle at 18% 18%,rgba(59,130,246,.17),transparent 30%),radial-gradient(circle at 82% 16%,rgba(14,165,233,.15),transparent 28%),linear-gradient(180deg,#f8fafc,#e2e8f0)}.app-shell.is-webxr-active{background:transparent}.app-shell.is-webxr-active .soft-overlay{display:none}.app-shell.is-webxr-active 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