:root{--bg: #0b0d10;--panel: #15191f;--panel-2: #1d222a;--border: #2a313c;--text: #e6e9ee;--text-dim: #9aa3b2;--accent: #3b82f6;--accent-2: #22c55e;--danger: #ef4444;--warning: #f59e0b;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text)}.app{display:flex;min-height:100dvh;height:100dvh;overflow:hidden}.sidebar{width:320px;min-width:320px;background:var(--panel);border-right:1px solid var(--border);padding:20px;overflow-y:auto}.main{flex:1;min-width:0;padding:28px;overflow-y:auto}h1{font-size:18px;margin:0 0 4px}h2{font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim);margin:24px 0 8px}h3{font-size:16px;margin:0 0 4px}.muted{color:var(--text-dim);font-size:12px}input[type=text],input[type=url],textarea,select{width:100%;background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:8px 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input[type=number]:focus{outline:none;border-color:var(--accent)}.reaction-config-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;align-items:end}.reaction-config-field{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--text-dim)}.reaction-config-field input[type=number],.reaction-config-field select{width:100%;background:var(--panel-2);border:1px solid var(--border);border-radius:6px;color:var(--text);padding:6px 8px;font-size:13px}.reaction-config-field select:focus{outline:none;border-color:var(--accent)}.reaction-config-grid.advanced{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.link-button{background:transparent;border:none;color:var(--accent);cursor:pointer;padding:0;font-size:inherit;font-family:inherit}.link-button:hover{text-decoration:underline}.reaction-config-toggle{flex-direction:row;align-items:center;gap:8px;cursor:pointer}.reaction-config-toggle input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent);cursor:pointer}.preview-frame{flex:1;border:12px solid var(--panel-2);border-radius:24px;background:var(--panel);margin:12px;width:calc(100% - 24px)}.preview-frames{flex:1;display:flex;flex-direction:column;overflow:hidden}.preview-frame-stack{position:relative;flex:1;margin:12px;border-radius:24px;overflow:hidden}.preview-frame-stack .preview-frame{position:absolute;top:0;right:0;bottom:0;left:0;margin:0;width:100%;height:100%;border:12px solid var(--panel-2)}.preview-frame-stack .preview-frame-overlay{pointer-events:none;background:transparent;border-color:transparent;z-index:2}.preview-collapsed{width:44px;min-width:44px;display:flex;flex-direction:column;align-items:center;border-left:1px solid var(--border);background:var(--panel);padding:12px 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