@import "https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;650;700&display=swap";
:root{--bg:#f4f4f4;--surface:#fff;--surface-2:#f4f4f4;--ink:#161616;--muted:#525252;--helper:#6f6f6f;--line:#e0e0e0;--line-strong:#c6c6c6;--navy:#060858;--blue:#0f62fe;--teal:#62b6b0;--orange:#f08a28}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:var(--bg);color:var(--ink);font-family:IBM Plex Sans,Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit}button,input,select{font:inherit}.shell{grid-template-rows:auto auto minmax(0,1fr);height:100vh;min-height:0;padding:18px;display:grid;overflow:hidden}.topbar{background:var(--surface);border:1px solid var(--line);justify-content:space-between;align-items:center;gap:18px;max-width:1860px;margin:0 auto 12px;padding:12px 16px;display:flex}.brand{gap:2px;display:grid}.brand h1{margin:0;font-size:18px;line-height:1.1}.brand p{color:var(--muted);margin:0;font-size:12px}.userbar{align-items:center;gap:12px;display:flex}.user-email{color:var(--muted);font-size:12px}.button{background:var(--navy);border:1px solid var(--navy);color:#fff;cursor:pointer;padding:8px 12px;font-size:12px;font-weight:650;text-decoration:none}.button.secondary{color:var(--navy);background:#fff}.shell-tabs{gap:1px;max-width:1860px;margin:0 auto 12px;display:flex}.shell-tabs button{border:1px solid var(--line);color:var(--muted);cursor:pointer;text-align:left;background:#fff;min-width:140px;padding:9px 14px;font-size:12px;font-weight:650}.shell-tabs button.active{border-top:2px solid var(--navy);color:var(--navy);padding-top:8px}.app-workspace{grid-template-columns:minmax(0,1fr) 320px;gap:12px;width:100%;max-width:1860px;height:100%;min-height:0;margin:0 auto;display:grid}.app-workspace.hidden{display:none}.dash-frame-wrap,.side-rail{background:var(--surface);border:1px solid var(--line);overflow:hidden}.dash-frame-wrap{height:100%;min-height:0}.dash-frame{border:0;width:100%;height:100%}.side-rail{align-self:start;gap:1px;height:100%;min-height:0;max-height:100%;display:grid;overflow:auto}.rail-section{background:var(--surface);border-bottom:1px solid var(--line);gap:8px;padding:12px;display:grid}.rail-section-fill{min-height:360px}.rail-heading-row{justify-content:space-between;align-items:center;gap:8px;min-width:0;display:flex}.rail-section h2,.rail-section h3{color:var(--ink);margin:0;font-size:12px;font-weight:650;line-height:1.2}.rail-section h3{text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.status-pill{border:1px solid var(--line-strong);color:var(--muted);flex:none;padding:3px 6px;font-size:10px;font-weight:650;line-height:1}.presence-list{gap:6px;display:grid}.presence-row{grid-template-columns:24px minmax(0,1fr);align-items:center;gap:8px;display:grid}.avatar{background:var(--surface-2);border:1px solid var(--line);object-fit:cover;place-items:center;width:24px;height:24px;display:inline-grid}.avatar-fallback{color:var(--muted);font-size:11px;font-weight:650}.presence-copy{min-width:0;display:grid}.presence-copy strong,.presence-copy span,.rail-muted,.rail-note{font-size:11px;line-height:1.35}.presence-copy strong{color:var(--ink);text-overflow:ellipsis;white-space:nowrap;font-weight:650;overflow:hidden}.presence-copy span,.rail-muted,.rail-note{color:var(--muted)}.rail-muted,.rail-note{margin:0}.rail-note{color:var(--helper)}.explorer-panel{border:1px solid var(--line);max-height:300px;overflow:auto}.model-root,.folder-node{border-bottom:1px solid var(--line)}.model-root:last-child,.folder-node:last-child{border-bottom:0}.model-root>summary,.folder-node>summary{color:var(--ink);cursor:pointer;padding:7px 8px;font-size:11px;font-weight:650;list-style-position:inside}.folder-node>summary{color:var(--muted);font-weight:600}.file-row{color:var(--ink);cursor:pointer;text-align:left;background:0 0;border:0;border-top:1px solid #f4f4f4;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;width:100%;min-height:28px;padding-top:5px;padding-bottom:5px;padding-right:8px;display:grid}.file-row:hover{background:#f4f4f4}.file-name{text-overflow:ellipsis;white-space:nowrap;font-size:10.5px;overflow:hidden}.file-meta{color:var(--helper);font-size:9px}.file-preview{border:1px solid var(--line);gap:8px;padding:8px;display:grid}.file-preview a{color:var(--navy);font-size:10px;font-weight:650;text-decoration:none}.file-preview img{border:1px solid var(--line);object-fit:contain;width:100%;max-height:160px}.rail-button{width:100%}.assistant-workspace{background:var(--surface);border:1px solid var(--line);grid-template-columns:minmax(0,1fr) 330px;gap:1px;width:100%;max-width:1860px;height:100%;min-height:0;margin:0 auto;display:grid;overflow:hidden}.assistant-main{grid-template-rows:auto minmax(0,1fr) auto;min-width:0;min-height:0;display:grid}.assistant-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;padding:14px 16px;display:flex}.assistant-header h2{color:var(--ink);margin:0 0 2px;font-size:18px}.assistant-header p,.assistant-card p{color:var(--muted);margin:0;font-size:12px;line-height:1.45}.assistant-side{border-left:1px solid var(--line);gap:1px;min-height:0;max-height:100%;display:grid;overflow:auto}.assistant-card{border-bottom:1px solid var(--line);gap:8px;padding:14px;display:grid}.assistant-card h3{color:var(--ink);margin:0;font-size:12px}.assistant-card dl{gap:6px;margin:0;display:grid}.assistant-card dl div{justify-content:space-between;gap:10px;display:flex}.assistant-card dt,.assistant-card dd{margin:0;font-size:11px}.assistant-card dt{color:var(--muted)}.assistant-card dd{color:var(--ink);font-weight:650}.chat-actions{flex-wrap:wrap;gap:6px;display:flex}.chat-actions.vertical{display:grid}.chat-actions button,.chat-input-row button{background:var(--navy);border:1px solid var(--navy);color:#fff;cursor:pointer;padding:7px 9px;font-size:11px;font-weight:650}.chat-actions button:disabled,.chat-input-row button:disabled{cursor:not-allowed;opacity:.55}.chat-messages{background:#fafafa;align-content:start;gap:8px;min-height:0;padding:16px;display:grid;overflow:auto}.chat-messages.large{max-height:none}.chat-message{border:1px solid var(--line);white-space:pre-wrap;max-width:82%;padding:11px 12px;font-size:13px;line-height:1.55}.chat-message h2,.chat-message h3,.chat-message h4,.chat-message p,.chat-message ul,.chat-message pre{margin:0 0 10px}.chat-message h2{font-size:16px}.chat-message h3{font-size:14px}.chat-message h4{font-size:13px}.chat-message ul{padding-left:18px}.chat-message li{margin:3px 0}.chat-message code{border:1px solid var(--line);background:#f4f4f4;padding:1px 3px;font-family:IBM Plex Mono,monospace;font-size:12px}.chat-message pre{border:1px solid var(--line);white-space:pre;background:#f4f4f4;padding:8px;overflow:auto}.chat-message pre code{background:0 0;border:0;padding:0}.chat-message .math-block{white-space:normal;margin:6px 0 12px;padding:4px 0;overflow-x:auto}.chat-message p:last-child,.chat-message ul:last-child,.chat-message pre:last-child,.chat-message .math-block:last-child,.chat-message h2:last-child,.chat-message h3:last-child,.chat-message h4:last-child{margin-bottom:0}.chat-message a{color:var(--blue)}.chat-message.assistant{color:var(--ink);background:#fff;justify-self:start}.chat-message.user{background:var(--navy);border-color:var(--navy);color:#fff;justify-self:end;max-width:88%}.chat-input-row{border-top:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto;gap:8px;padding:12px;display:grid}.chat-input-row.large{align-items:end}.chat-input-row textarea{border:1px solid var(--line-strong);color:var(--ink);resize:vertical;min-height:82px;padding:10px;font-family:inherit;font-size:13px}.compact-button{border:1px solid var(--line-strong);color:var(--ink);cursor:pointer;background:#fff;padding:7px 10px;font-size:11px;font-weight:650}.auth-page,.blocked-page{align-items:center;min-height:100vh;padding:24px;display:grid}.auth-card,.blocked-card{background:var(--surface);border:1px solid var(--line);max-width:480px;margin:0 auto;padding:28px}.blocked-card h1{margin:0 0 12px;font-size:24px}.blocked-card p{color:var(--muted);margin:0 0 16px;line-height:1.55}@media (max-width:760px){.shell{height:auto;min-height:100vh;padding:12px;overflow:visible}.app-workspace{grid-template-columns:1fr}.shell-tabs{margin-bottom:8px}.shell-tabs button{width:50%;min-width:0}.topbar{flex-direction:column;align-items:flex-start}.userbar{justify-content:space-between;width:100%}.dash-frame-wrap{height:70vh}.side-rail{max-height:none}.assistant-workspace{grid-template-columns:1fr;height:auto;overflow:visible}.assistant-side{border-left:0;border-top:1px solid var(--line)}.chat-message{max-width:100%}}