:root{--bg: #f5f2ec;--text-main: #27303a;--idea-bg: #faf9f6;--idea-border: rgba(15, 23, 42, .12);--idea-shadow: 0 14px 40px rgba(15, 23, 42, .08)}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--text-main);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}body:before{display:none}#canvas{position:fixed;inset:0;display:block;touch-action:none;cursor:grab}#canvas.dragging{cursor:grabbing}.app-boot-overlay{position:fixed;inset:0;z-index:4000;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at top,#ffffffb8,#f5f2ecf5 46%,#f5f2ec),linear-gradient(180deg,#ffffff52,#f5f2ece0);transition:opacity .22s ease,visibility .22s ease}.app-boot-overlay.is-hidden{opacity:0;visibility:hidden;pointer-events:none}.app-boot-card{width:min(100%,320px);display:grid;justify-items:center;gap:14px;padding:24px 22px 20px;border:1px solid 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