:root{--bg:#f7f8fb;--panel:#ffffff;--panel-2:#f0f4f8;--text:#17202a;--muted:#657386;--line:#d9e1ea;--accent:#0f766e;--accent-2:#2563eb;--danger:#b42318;--warning:#ad6800;--ok:#067647;--shadow:0 12px 32px rgba(20,34,52,0.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{grid-template-columns:248px minmax(0,1fr)}.app-shell,.auth-shell{min-height:100vh;display:grid}.auth-shell{place-items:center;padding:24px}.auth-panel{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:22px}.auth-brand{color:var(--text);margin-bottom:20px}.sidebar{background:#1c2430;color:#f8fafc;padding:20px 16px;display:flex;flex-direction:column;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px}.brand-mark{width:34px;height:34px;border-radius:6px;background:#2dd4bf;color:#0f172a;display:grid;place-items:center;font-weight:800}.nav{display:grid;grid-gap:6px;gap:6px}.nav-button{border:0;background:transparent;color:#cbd5e1;padding:10px 12px;border-radius:6px;display:flex;align-items:center;gap:10px;text-align:left}.nav-button.active,.nav-button:hover{background:#334155;color:#ffffff}.main{min-width:0;padding:22px}.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:18px}.topbar h1{font-size:24px;margin:0 0 4px}.topbar p{margin:0;color:var(--muted);font-size:14px}.api-status{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;white-space:nowrap}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--warning)}.status-dot.ok{background:var(--ok)}.grid{display:grid;grid-template-columns:minmax(320px,430px) minmax(0,1fr);grid-gap:18px;gap:18px;align-items:start}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);min-width:0}.panel-header{padding:16px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;align-items:center}.panel-header h2{margin:0;font-size:17px}.panel-header p{margin:3px 0 0;color:var(--muted);font-size:13px}.panel-body{padding:16px 18px 18px}.form-grid{display:grid;grid-gap:14px;gap:14px}.field{display:grid;grid-gap:7px;gap:7px}.label{font-size:13px;color:#334155;font-weight:700}.input,.select,.textarea{width:100%;border:1px solid var(--line);border-radius:6px;padding:10px 11px;color:var(--text);background:#fff;min-height:40px}.compact-select{width:auto;min-width:96px;min-height:38px}.textarea{min-height:106px;resize:vertical}.input:focus,.select:focus,.textarea:focus{outline:2px solid rgba(37,99,235,.18);border-color:var(--accent-2)}.check-row{display:flex;flex-wrap:wrap;gap:8px}.check-pill{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:6px;padding:8px 10px;color:#334155;background:#fff;font-size:13px}.actions{display:flex;gap:10px;flex-wrap:wrap}.button{border:1px solid transparent;border-radius:6px;padding:9px 12px;display:inline-flex;align-items:center;gap:8px;justify-content:center;min-height:38px;background:var(--accent);color:#fff;font-weight:700}.button.secondary{color:#243447;background:#fff;border-color:var(--line)}.button.danger{background:#fff;color:var(--danger);border-color:#f0b8b2}.button.icon-only{width:36px;padding:8px;flex:0 0 auto}.button:disabled{opacity:.55;cursor:not-allowed}.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.link-button{border:0;padding:0;background:transparent;color:inherit;text-align:left}.segmented{display:inline-grid;grid-template-columns:repeat(3,minmax(70px,1fr));border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff}.segment{border:0;border-right:1px solid var(--line);background:#fff;color:#334155;padding:8px 10px}.segment:last-child{border-right:0}.segment.active{background:#d9f4ef;color:#0f4f49;font-weight:700}.list{display:grid;grid-gap:10px;gap:10px}.book-closure-grid{grid-template-columns:minmax(280px,360px) minmax(0,1fr)}.table-wrap{width:100%;overflow:auto;border:1px solid var(--line);border-radius:8px}.data-table{width:100%;min-width:720px;border-collapse:collapse;background:#fff}.data-table td,.data-table th{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:13px;white-space:nowrap}.data-table th{background:#f8fafc;color:#334155;font-weight:700}.data-table tr:last-child td{border-bottom:0}.data-table tbody tr:hover{background:#fbfcfe}.strong-cell{color:#0f172a;font-weight:700}.item{border:1px solid var(--line);border-radius:8px;padding:12px;background:#fff;display:grid;grid-gap:10px;gap:10px}.item.selected{border-color:var(--accent);box-shadow:inset 3px 0 0 var(--accent)}.item-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.item-title{font-weight:700;overflow-wrap:anywhere}.item-actions{display:inline-flex;gap:6px;flex:0 0 auto;align-items:center}.meta{display:flex;flex-wrap:wrap;gap:6px}.badge{display:inline-flex;align-items:center;gap:5px;min-height:22px;padding:3px 7px;border-radius:5px;background:var(--panel-2);color:#334155;font-size:12px}.badge.ok{background:#dcfae6;color:#067647}.badge.warn{background:#fef0c7;color:#93370d}.muted{color:var(--muted)}.small{font-size:12px}.chunk-text{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.48;color:#243447}.empty{padding:22px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:8px}.error{border:1px solid #f0b8b2;color:var(--danger);background:#fff5f4;border-radius:6px}.error,.success{padding:10px 12px;font-size:13px}.success{border:1px solid #abefc6;color:var(--ok);background:#f0fdf4;border-radius:6px}.prompt-preview{border:1px solid var(--line);border-radius:8px;background:#fbfcfe;padding:14px;white-space:pre-wrap;line-height:1.5;min-height:180px;max-height:420px;overflow:auto}.prompt-preview.compact{min-height:84px;max-height:180px}.prompt-list{margin-top:8px}.subsection-input-row{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:8px;gap:8px;align-items:center}.subsection-list{display:flex;flex-wrap:wrap;gap:8px}.subsection-select{min-height:36px;max-width:100%;border:1px solid var(--line);border-radius:6px;background:#fff;color:#243447;padding:8px 10px;display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;overflow-wrap:anywhere}.subsection-chip.active,.subsection-select.active{border-color:var(--accent);background:#d9f4ef;color:#0f4f49}.subsection-chip{min-width:0;display:inline-flex;align-items:center;gap:4px;border:1px solid var(--line);border-radius:6px;background:#fbfcfe;padding:3px 3px 3px 9px}.subsection-chip .link-button{max-width:210px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#243447;font-size:13px;font-weight:700}.subsection-chip .button.icon-only{width:30px;min-height:30px;padding:6px}.compact-empty{width:100%;padding:12px;font-size:13px}.prompt-history-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.prompt-expand-button{border:0;padding:0;background:transparent;color:#243447;display:inline-flex;align-items:center;gap:6px;font-weight:700;text-align:left}.prompt-item.is-expandable .item-head{align-items:center}.prompt-content{flex:1 1;min-width:0}.prompt-edit-textarea{min-height:92px}.prompt-history-list{border-top:1px solid var(--line);padding-top:10px;display:grid;grid-gap:8px;gap:8px}.prompt-history-item{border:1px solid var(--line);border-radius:6px;background:#fbfcfe;padding:10px;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:10px;gap:10px;align-items:start}.expired-prompt-list{margin-top:10px}.playground-workspace{min-height:calc(100vh - 122px);display:grid;grid-template-columns:220px minmax(0,1fr) 300px;border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden}.playground-left,.playground-right{min-width:0;background:#fbfbfa;border-right:1px solid var(--line);padding:12px;display:flex;flex-direction:column;gap:10px}.playground-right{border-right:0;border-left:1px solid var(--line)}.playground-main{min-width:0;display:grid;grid-template-rows:auto minmax(0,1fr) auto;background:#fff}.playground-pane-title{min-height:34px;align-items:center;color:#1f2937;font-size:13px;font-weight:700}.playground-pane-title,.playground-preset{display:flex;justify-content:space-between;gap:8px}.playground-preset{border:1px solid transparent;border-radius:6px;background:transparent;color:#334155;padding:10px;text-align:left}.playground-preset.active,.playground-preset:hover{background:#fff;border-color:var(--line)}.playground-preset span{text-transform:capitalize;font-weight:700}.playground-preset small{color:var(--muted)}.playground-runbar{min-height:58px;padding:10px 12px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}.playground-model{display:flex;align-items:center;gap:8px;min-width:0}.playground-model input,.playground-model select{border:1px solid var(--line);border-radius:6px;min-height:36px;background:#fff;color:var(--text);padding:8px 10px}.playground-model input{width:min(360px,42vw)}.message-stack{min-height:0;overflow:auto;padding:14px;display:grid;align-content:start;grid-gap:12px;gap:12px}.message-role{color:#344054;font-size:12px;font-weight:700}.chat-empty{align-self:center;justify-self:center;color:var(--muted);border:1px dashed var(--line);border-radius:8px;padding:18px}.chat-message{display:grid;grid-gap:7px;gap:7px;max-width:780px}.chat-message.user{justify-self:end;width:min(78%,720px)}.chat-message.assistant{justify-self:start;width:min(86%,760px)}.chat-message.user .message-role{text-align:right}.chat-bubble{border:1px solid var(--line);border-radius:8px;background:#fff;padding:12px;line-height:1.5;white-space:pre-wrap;overflow-wrap:anywhere}.chat-message.user .chat-bubble{background:#f3f4f6}.chat-composer{border-top:1px solid var(--line);padding:12px;background:#fff;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:10px;gap:10px;align-items:end}.chat-composer textarea{width:100%;min-height:72px;max-height:180px;border:1px solid var(--line);border-radius:8px;color:#111827;background:#fff;padding:12px;line-height:1.5;resize:vertical}.chat-composer .button{min-width:86px;height:42px;margin-bottom:1px}.playground-field{display:grid;grid-gap:8px;gap:8px;padding:4px 0 12px;border-bottom:1px solid var(--line)}.system-field textarea{width:100%;min-height:180px;max-height:320px;border:1px solid var(--line);border-radius:8px;padding:10px;resize:vertical;line-height:1.45}.compact-segmented{width:100%}.range-row{display:grid;grid-template-columns:minmax(0,1fr) 58px;align-items:center;grid-gap:8px;gap:8px}.range-row input[type=range]{width:100%}.range-row input[type=number]{width:58px;min-height:34px;border:1px solid var(--line);border-radius:6px;padding:6px}.playground-context{min-height:0;overflow:auto;display:grid;align-content:start;grid-gap:10px;gap:10px}.context-title{position:-webkit-sticky;position:sticky;top:0;background:#fbfbfa;z-index:1}.context-empty{border:1px dashed var(--line);border-radius:8px;color:var(--muted);padding:18px;text-align:center;font-size:13px}.source-card{border:1px solid var(--line);border-radius:8px;background:#fff;padding:10px}.source-card summary{cursor:pointer;display:flex;justify-content:space-between;gap:8px;align-items:flex-start;font-size:13px;font-weight:700;list-style:none}.source-card summary::-webkit-details-marker{display:none}.source-card summary:before{content:">";color:var(--muted)}.source-card[open] summary:before{content:"v"}.source-card summary span{flex:1 1}.source-card .meta{margin-top:8px}.source-card p{overflow-wrap:anywhere;margin:8px 0 0;color:#344054;font-size:13px;line-height:1.45;white-space:pre-wrap}.two-cols{grid-template-columns:repeat(2,minmax(0,1fr))}.time-fields,.two-cols{display:grid;grid-gap:10px;gap:10px}.reset-row{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:10px;gap:10px}.user-meta{margin-top:8px}.spin{animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:920px){.app-shell{grid-template-columns:1fr}.sidebar{position:-webkit-sticky;position:sticky;top:0;z-index:10;padding:12px;gap:12px}.nav{grid-template-columns:repeat(auto-fit,minmax(52px,1fr))}.nav-button{justify-content:center}.nav-button span{display:none}.grid{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}.playground-workspace,.two-cols{grid-template-columns:1fr}.playground-workspace{min-height:auto}.playground-left,.playground-right{border-left:0;border-right:0}.playground-left{border-bottom:1px solid var(--line)}.playground-right{border-top:1px solid var(--line)}.playground-model{flex:1 1}.playground-model input{width:100%}.chat-composer,.reset-row{grid-template-columns:1fr}.item-head{flex-direction:column}}