:root{--bg: #edf4ef;--panel: #ffffff;--panel-border: #e1e4e8;--text: #202124;--subtle: #5f6368;--accent: #1abc54;--accent-soft: #e8f7ee;--accent-border: #b8e0c5;--accent-text: #176d34;--danger: #e63946;--hover-bg: #f1f3f5;--canvas-bg: #ecf4ef;--operator-modes-bg: #f8f9fa;--wordmark: #27ae60;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 4px 12px rgba(0, 0, 0, .04);--sidebar-width: 260px;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text)}*{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100vh}#app{margin-left:var(--sidebar-width);height:100vh;min-height:100vh;padding:16px;display:flex;flex-direction:column;box-sizing:border-box}.stage{flex:1;min-width:0;min-height:0;display:flex;flex-direction:column;gap:12px}header.app-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;flex-shrink:0}.app-title{display:flex;align-items:center;gap:12px;margin:0;font-size:18px;font-weight:600;letter-spacing:.2px}.wordmark{display:block;height:32px;width:auto}.app-subtitle{color:var(--subtle);font-weight:500;font-size:16px}.challenge-link{margin-left:8px;font-size:14px;font-weight:500;color:var(--accent-text);text-decoration:none}.challenge-link:hover{text-decoration:underline}.timescale{display:inline-flex;align-items:center;gap:4px;padding:4px;background:var(--panel);border:1px solid var(--panel-border);border-radius:8px;box-shadow:var(--shadow)}.timescale-clock{display:inline-flex;align-items:center;justify-content:center;padding:0 2px 0 4px;color:var(--subtle);flex-shrink:0}.timescale-clock svg{display:block}.timescale>button{display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;min-height:32px;padding:6px 12px}.timescale-pause{min-width:36px}.timescale-pause svg{display:block}button{font:inherit;border:1px solid var(--panel-border);background:var(--panel);color:var(--text);padding:6px 12px;border-radius:6px;cursor:pointer;transition:background .12s ease,border-color .12s ease}button:hover:not(:disabled){background:var(--hover-bg)}button:disabled{cursor:not-allowed;opacity:.55}button.active{background:var(--accent-soft);border-color:var(--accent-border);color:var(--accent-text);font-weight:600}.canvas-wrap{flex-shrink:0;background:var(--panel);border:1px solid var(--panel-border);border-radius:10px;box-shadow:var(--shadow);padding:12px}.event-history{flex:1;min-height:0;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--panel-border);border-radius:10px;box-shadow:var(--shadow);overflow:hidden}.event-history-header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.event-history-hide{font-size:12px;padding:4px 10px}.event-history-show{flex-shrink:0;align-self:flex-start;font-size:12px;padding:6px 12px;background:var(--panel);border:1px solid var(--panel-border);border-radius:8px;box-shadow:var(--shadow);color:var(--subtle)}.event-history-show:hover:not(:disabled){color:var(--text)}.event-history.event-history--hidden{display:none}.event-history-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-bottom:1px solid var(--panel-border);flex-shrink:0}.event-history-header h2{margin:0;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--subtle)}.event-history-autoscroll-label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--subtle);cursor:pointer;-webkit-user-select:none;user-select:none}.event-history-autoscroll-label input{margin:0;cursor:pointer}.event-history-list{list-style:none;margin:0;padding:4px 0;overflow-y:auto;flex:1;min-height:0}.event-history-row{display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:8px;padding:6px 14px;font-size:13px;border-bottom:1px solid var(--panel-border)}.event-history-row:last-child{border-bottom:none}.event-history-icon{display:flex;align-items:center;justify-content:flex-start;flex-shrink:0;width:24px;height:20px}.event-history-device,.event-history-action,.event-history-time{flex:0 0 auto}.event-history-icon svg{display:block}.event-history-device{font-weight:600;color:var(--text)}.event-history-action{color:var(--subtle)}.event-history-time{font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:11px;color:var(--subtle)}.event-history-time:before{content:"·";margin-right:8px;color:var(--panel-border);font-family:inherit}canvas{display:block;width:100%;background:var(--canvas-bg);border-radius:6px}.control-panel{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-width);z-index:100;display:flex;flex-direction:column;gap:16px;overflow-y:auto;background:var(--panel);border-right:1px solid var(--panel-border);box-shadow:var(--shadow);padding:16px}.system-row{display:flex;flex-direction:column;align-items:stretch;gap:8px;border-top:1px solid var(--panel-border);padding-top:14px}.control-panel>.system-row:first-child{border-top:none;padding-top:0}.system-row .label{font-size:12px;color:var(--subtle);font-weight:600;text-transform:uppercase;letter-spacing:.04em}.system-row-actions{display:flex;flex-direction:column;gap:6px}.system-row-actions button{width:100%}.scenario-modes{display:flex;flex-direction:column;gap:4px;padding:4px;background:var(--operator-modes-bg);border:1px solid var(--panel-border);border-radius:8px}.scenario-modes button{width:100%;font-size:12px;padding:4px 10px}.bin-operator-row{gap:8px}.bin-operator-modes{display:flex;flex-direction:column;gap:4px;padding:4px;background:var(--operator-modes-bg);border:1px solid var(--panel-border);border-radius:8px}.bin-operator-modes button{width:100%;font-size:12px;padding:4px 10px}.bin-operator-status{font-size:12px;color:var(--subtle);font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;word-break:break-word}.bin-operator-status.lockdown{color:var(--danger);font-weight:600}