:root{--bg:#0d0d0d;--bg-secondary:#141414;--panel:#1e1e1e;--panel-alt:#252525;--border:#2e2e2e;--border-strong:#3f3f3f;--text:#dcddde;--text-muted:#6b6b6b;--text-faint:#444;--accent:#7c3aed;--accent-bright:#a78bfa;--accent-glow:rgba(124,58,237,0.18);--accent-subtle:rgba(124,58,237,0.08)}*{box-sizing:border-box}body,html{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent-bright)}.home{max-width:640px;margin:0 auto;padding:72px 24px 64px}.admin-link{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text-muted);text-decoration:none;padding:5px 10px;border:1px solid var(--border);border-radius:6px;margin-bottom:40px}.admin-link:hover{border-color:var(--accent);color:var(--accent-bright)}.home-header{display:flex;flex-direction:column;align-items:flex-start;gap:4px;margin-bottom:48px}.shard-logo{margin-bottom:12px;filter:drop-shadow(0 0 18px rgba(124,58,237,.45))}.shard-title{margin:0;font-size:2rem;font-weight:700;letter-spacing:-.03em;background:linear-gradient(135deg,#c4b5fd,#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.shard-tagline{margin:4px 0 0;color:var(--text-muted);font-size:14px}.canvas-section-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);margin:0 0 12px}.canvas-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}.canvas-card{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--panel);border:1px solid 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ease}.home-link:hover{border-color:var(--accent);color:var(--accent-bright)}.viewer-title{font-size:13px;font-weight:500;color:var(--text-muted);letter-spacing:.01em;padding:0 4px}.react-flow{background:var(--bg)}.canvas-node{width:100%;height:100%;border:1px solid var(--border-strong);border-radius:8px;background:var(--panel);overflow:hidden;display:flex;flex-direction:column;font-size:14px;line-height:1.6;box-shadow:0 2px 12px rgba(0,0,0,.4)}.canvas-node[style*=border-color]{border-top-width:2px}.node-scroll{flex:1 1;overflow:auto;padding:14px 16px;scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}.node-titlebar{padding:6px 12px;font-size:11px;font-weight:600;letter-spacing:.04em;color:var(--text-faint);border-bottom:1px solid var(--border);background:rgba(255,255,255,.02);flex:none;text-transform:uppercase}.file-image{display:block;width:100%;height:100%;object-fit:contain}.file-node 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var(--border-strong);border-radius:14px;padding:36px 32px 32px;box-shadow:0 8px 40px rgba(0,0,0,.5)}.login-logo{display:flex;justify-content:center;margin-bottom:16px;filter:drop-shadow(0 0 14px rgba(124,58,237,.4))}.login-title{margin:0 0 4px;font-size:1.25rem;font-weight:700;text-align:center;background:linear-gradient(135deg,#c4b5fd,#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-subtitle{margin:0 0 24px;font-size:13px;color:var(--text-muted);text-align:center}.btn-google{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:11px 16px;background:var(--panel-alt);border:1px solid var(--border-strong);border-radius:8px;color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:border-color .15s ease,background .15s ease}.btn-google:hover{border-color:var(--accent);background:rgba(124,58,237,.06)}.login-divider{display:flex;align-items:center;gap:12px;margin:20px 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10px;border-radius:6px;font-size:12px;font-weight:500;cursor:pointer;border:1px solid var(--border-strong);transition:border-color .15s ease,background .15s ease}.publish-btn-private{background:var(--panel-alt);color:var(--text-muted)}.publish-btn-private:hover,.publish-btn-public{border-color:var(--accent);color:var(--accent-bright)}.publish-btn-public{background:var(--accent-subtle)}.publish-btn-public:hover{background:rgba(124,58,237,.15)}.publish-btn:disabled{opacity:.5;cursor:not-allowed}.publish-spinner{display:inline-block;width:10px;height:10px;border:2px solid var(--border-strong);border-top-color:var(--accent-bright);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.admin-page{max-width:640px;margin:0 auto;padding:48px 24px 64px}.admin-header{display:flex;align-items:center;gap:16px;margin-bottom:32px}.admin-back{font-size:13px;color:var(--text-muted);text-decoration:none;padding:5px 10px;border:1px solid var(--border);border-radius:6px}.admin-back:hover{border-color:var(--accent);color:var(--accent-bright)}.admin-title{margin:0;font-size:1.2rem;font-weight:700}.admin-notice{padding:12px 16px;margin-bottom:24px;background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.3);border-radius:8px;font-size:13px;color:#fbbf24;line-height:1.6}.admin-notice a{color:#fbbf24;text-decoration:underline}.admin-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.admin-item{justify-content:space-between;padding:14px 16px;background:var(--panel);border:1px solid var(--border);border-radius:8px}.admin-item,.admin-item-left{display:flex;align-items:center}.admin-item-left{gap:12px}.admin-canvas-name{font-size:14px;font-weight:500;color:var(--text);text-decoration:none}.admin-canvas-name:hover{color:var(--accent-bright)}.admin-badge{font-size:11px;font-weight:600;padding:2px 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