:root{--bg:#f6f7f9;--surface:#fff;--surface-muted:#eef0f4;--border:#dfe3ea;--text:#1a2233;--text-muted:#5b6575;--accent:#2456d6;--accent-soft:#e8eefc;--ok:#157a4c;--ok-soft:#e2f4ea;--warn:#9a6700;--warn-soft:#fbf0d8;--danger:#b3261e;--danger-soft:#fbe4e2;--overdue:#7a1d68;--overdue-soft:#f6e2f2;--neutral-soft:#e9ebef;--radius:10px;--shadow:0 1px 2px #1018280f, 0 1px 6px #1018280d;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,sans-serif;font-size:14px;line-height:1.45}#root{flex-direction:column;min-height:100vh;display:flex}.shell-header{background:var(--surface);border-bottom:1px solid var(--border);z-index:10;align-items:center;gap:20px;height:54px;padding:0 20px;display:flex;position:sticky;top:0}.brand{letter-spacing:-.01em;font-size:16px;font-weight:700}.brand span{color:var(--accent)}.shell-nav{gap:4px;display:flex}.shell-nav a{color:var(--text-muted);border-radius:7px;padding:6px 12px;font-weight:500;text-decoration:none}.shell-nav a.active{color:var(--accent);background:var(--accent-soft)}.shell-spacer{flex:1}.shell-status{align-items:center;gap:8px;display:flex}.global-controls{color:var(--text-muted);white-space:nowrap;align-items:center;gap:6px;font-size:11.5px;display:flex}.status-error{color:var(--danger);font-size:12px}.status-loading{color:var(--text-muted);font-size:12px}.demo-banner{color:#f6f7f9;text-align:center;background:#1a2233;padding:6px 16px;font-size:13px}.demo-banner strong{color:#9db9ff}main{flex:1;width:min(1060px,100%);margin:0 auto;padding:22px 20px 60px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:16px 18px}.card h2{margin:0 0 12px;font-size:15px;font-weight:600}.section-note{color:var(--text-muted);margin:-8px 0 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var(--border);border-radius:var(--radius);margin-top:12px;padding:12px}.sandbox-commitment-head{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.sandbox-commitment-head h3{text-transform:none;letter-spacing:0;color:var(--text);margin:0;font-size:15px}.sandbox-commitment dl{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:12px 0 0;display:grid}.sandbox-commitment dt{text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);font-size:11px}.sandbox-commitment dd{margin:2px 0 0}.sandbox-commitment dd em{color:var(--text-muted);font-size:12.5px}.sandbox-evidence{border-left:3px solid var(--border);color:var(--text-muted);margin:12px 0 0;padding-left:10px;font-style:italic}.sandbox-empty{border:1px dashed var(--border);border-radius:var(--radius);color:var(--text-muted);text-align:center;padding:14px}.sandbox-calendar{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-muted);gap:2px;padding:8px;display:grid}.calendar-day-head{text-align:center;color:var(--text-muted);padding-bottom:4px;font-size:12px;font-weight:600}.calendar-hours{height:340px;color:var(--text-muted);font-size:10px;position:relative}.calendar-hours span{position:absolute;right:4px}.calendar-column{background:repeating-linear-gradient(to bottom, var(--surface) 0, var(--surface) calc(100% / 11 - 1px), var(--border) calc(100% / 11 - 1px), var(--border) calc(100% / 11));border-radius:6px;height:340px;position:relative}.calendar-entry{border:1px solid #0000;border-radius:5px;padding:2px 5px;font-size:10.5px;line-height:1.2;position:absolute;left:3px;right:3px;overflow:hidden}.calendar-entry strong{white-space:nowrap;text-overflow:ellipsis;font-size:11px;display:block;overflow:hidden}.calendar-entry span{color:inherit;opacity:.8}.calendar-entry.block{background:var(--accent-soft);color:#1b3d8f;border-color:#b9cdf5}.calendar-entry.block.state-awaiting_check_in{background:var(--warn-soft);color:var(--warn);border-color:#e8d5a6}.calendar-entry.block.state-completed{background:var(--ok-soft);color:var(--ok);border-color:#bfe4d0}.calendar-entry.block.state-canceled{background:var(--neutral-soft);border-color:var(--border);color:var(--text-muted);text-decoration:line-through}.calendar-entry.busy{background:var(--danger-soft);color:var(--danger);border-color:#f0c4c0}.calendar-entry.proposed{color:#1b3d8f;opacity:.85;background:0 0;border:1.5px dashed #8ba7e8}.sandbox-proposed-blocks{border:1.5px dashed var(--border);border-radius:var(--radius);margin:8px 0;padding:8px 10px;font-size:12.5px}.sandbox-proposed-blocks p{color:var(--text-muted);margin:0 0 4px}.sandbox-proposed-blocks ul{margin:0;padding-left:18px}.sandbox-activity{border:1px solid var(--border);border-radius:var(--radius);max-height:260px;margin:0;padding:0;list-style:none;overflow-y:auto}.sandbox-activity li{border-bottom:1px solid var(--border);align-items:baseline;gap:10px;padding:7px 10px;display:flex}.sandbox-activity li:last-child{border-bottom:none}.sandbox-activity code{background:var(--surface-muted);color:var(--text-muted);white-space:nowrap;border-radius:4px;flex:none;padding:1px 6px;font-size:11px}.sandbox-activity span{color:var(--text-muted);font-size:12.5px}.sandbox-activity li{flex-wrap:wrap}.sandbox-interpretation-note{color:var(--text-muted);background:var(--surface-muted);border-radius:var(--radius);margin:0 0 10px;padding:6px 10px;font-size:12px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.sandbox-busy{color:var(--text-muted);background:var(--surface-muted);border-left:3px solid var(--border);border-radius:var(--radius);margin:0 0 10px;padding:8px 10px;font-size:12.5px;animation:1.6s ease-in-out infinite sandbox-busy-pulse}@keyframes sandbox-busy-pulse{0%,to{opacity:1}50%{opacity:.55}}.sandbox-complete-confirm{border:1px solid var(--border);border-radius:var(--radius);margin-top:8px;padding:8px 10px}.sandbox-complete-confirm p{margin:0 0 8px;font-size:12.5px}.completion-evidence{background:var(--surface-muted);border-left:3px solid var(--border);border-radius:var(--radius);margin:10px 0 0;padding:8px 10px;font-size:13px}.sandbox-evidence-details{flex-basis:100%;min-width:0;font-size:12px}.sandbox-evidence-details>summary{cursor:pointer;color:var(--text-muted);font-size:11.5px}.sandbox-evidence-details dl{background:var(--surface-muted);border-radius:6px;gap:3px;margin:6px 0 0;padding:6px 8px;display:grid}.sandbox-evidence-details dl div{align-items:baseline;gap:8px;min-width:0;display:flex}.sandbox-evidence-details dt{width:150px;color:var(--text-muted);flex:none;font-size:11px}.sandbox-evidence-details dd{overflow-wrap:anywhere;min-width:0;margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px}.sandbox-outbox-action{border-left:2px solid var(--border)}@media (width<=600px){body:has(.sandbox) main{min-width:0;padding:8px 10px 36px}.sandbox{min-width:0;padding:8px 0 28px}.sandbox-tour{grid-template-columns:auto minmax(0,1fr);gap:10px;padding:12px;display:grid}.sandbox-tour button{grid-column:1/-1;width:100%;margin-left:0}.sandbox-split,.sandbox-card,.sandbox-card-head,.sandbox-message,.sandbox-commitment,.sandbox-composer,.sandbox-mode-chooser,.sandbox-composer-head{min-width:0}.sandbox-mode-chooser{grid-template-columns:1fr}.sandbox-composer-head,.sandbox-composer-actions{grid-template-columns:1fr;display:grid}.sandbox-composer-head label,.sandbox-composer-actions button{width:100%}.sandbox-card-label,.sandbox-card-body,.sandbox-message p,.sandbox-tour p,.sandbox-activity span{overflow-wrap:anywhere}.sandbox-calendar{overflow-x:auto}}.demo-banner a{color:#9db9ff;font-weight:600}.sandbox-banner a{color:var(--accent)}