:root{--surface-1: #ffffff;--surface-2: #f6f3ee;--border: #e6e0d6;--border-strong: #d8d0c2;--text-primary: #211d17;--text-secondary: #8a8172;--accent: #d9662c;--accent-hover: #c2551f;--bg-accent: #fbe6d6;--fill-accent: var(--accent);--on-accent: #ffffff;--focus: #6d4bd6;--focus-hover: #5c3dc0;--bg-focus: #efeafc;--border-focus: #cfc2f2;--bg-warning: #faf1de;--border-warning: #e8cd93;--text-warning: #8a5c10;--bg-error: #fdecec;--text-error: #a3221a;--radius-pill: 999px;--radius-lg: 20px;--sidebar-width: 200px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--surface-1);color:var(--text-primary);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:var(--accent)}.sb-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;border-radius:var(--radius-pill);border:none;background:var(--fill-accent);color:var(--on-accent);font-weight:600;font-size:15px;min-height:44px}.sb-button:hover{background:var(--accent-hover)}.sb-button:disabled{opacity:.5;cursor:not-allowed}.sb-button--secondary{background:var(--surface-2);color:var(--text-primary);border:.5px solid var(--border-strong)}.sb-button--secondary:hover{background:var(--border)}.sb-button--danger{background:var(--text-error);color:#fff}.sb-button--danger:hover{opacity:.9}.sb-input{width:100%;padding:10px 14px;border-radius:var(--radius-pill);border:.5px solid var(--border-strong);background:var(--surface-1);color:var(--text-primary);font-size:16px;min-height:44px}.sb-input:focus{outline:2px solid var(--accent);outline-offset:-1px}.sb-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.sb-field label{font-size:13px;font-weight:600;color:var(--text-secondary)}.sb-icon-button{border:none;background:transparent;padding:8px;border-radius:8px;color:var(--text-secondary);min-width:36px;min-height:36px;display:inline-flex;align-items:center;justify-content:center}.sb-icon-button:hover{background:var(--border);color:var(--text-primary)}.sb-icon-button--sm{min-width:28px;min-height:28px;padding:4px;font-size:13px}.sb-empty-state{color:var(--text-secondary);text-align:center;padding:32px 16px}.sb-empty-state--sidebar{padding:12px 4px;font-size:13px}.sb-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#211d1759;z-index:60;display:flex;align-items:center;justify-content:center;padding:16px}.sb-modal{width:100%;max-width:360px;background:var(--surface-1);border:.5px solid var(--border-strong);border-radius:var(--radius-lg);padding:20px}.sb-modal-title{font-size:16px;font-weight:700;margin-bottom:12px}.sb-modal-body{font-size:14px;color:var(--text-primary);margin:0 0 16px;line-height:1.5}.sb-modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.sb-page{display:flex;flex-direction:column;min-height:100%}.sb-login{flex:1;display:flex;align-items:center;justify-content:center;padding:16px}.sb-login-card{width:100%;max-width:360px;padding:28px;border:.5px solid var(--border-strong);border-radius:var(--radius-lg)}.sb-login-title{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;margin:0 0 4px}.sb-login-subtitle{color:var(--text-secondary);margin:0 0 20px;font-size:14px}.sb-error-text{color:var(--text-error);font-size:14px;margin:8px 0 0}.sb-app-shell{display:flex;height:100vh;height:100dvh;overflow:hidden}.sb-sidebar{width:var(--sidebar-width);flex-shrink:0;background:var(--surface-2);border-right:.5px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;padding:16px 12px;gap:12px}.sb-sidebar-backdrop{display:none}.sb-sidebar-header{display:flex;flex-direction:column;gap:2px;padding:0 4px}.sb-sidebar-header-row{display:flex;align-items:center;justify-content:space-between}.sb-avatar{width:36px;height:36px;border-radius:50%;background:var(--bg-accent);color:var(--accent);font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center}.sb-sidebar-username{font-weight:600;font-size:14px;margin-top:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sb-sidebar-spend{font-size:12px;color:var(--text-secondary)}.sb-new-chat-btn{display:flex;align-items:center;gap:8px;width:100%;padding:10px 14px;border-radius:var(--radius-pill);border:.5px solid var(--border-strong);background:var(--surface-1);color:var(--text-primary);font-weight:600;font-size:14px;min-height:40px;text-align:left}.sb-new-chat-btn:hover{background:var(--bg-accent);border-color:var(--accent);color:var(--accent)}.sb-nav-link{display:flex;align-items:center;gap:8px;width:100%;padding:8px 14px;border-radius:var(--radius-pill);border:none;background:transparent;color:var(--text-secondary);font-weight:600;font-size:14px;min-height:36px;text-align:left}.sb-nav-link:hover{background:var(--surface-1);color:var(--text-primary)}.sb-nav-link--active,.sb-nav-link--active:hover{background:var(--bg-accent);color:var(--accent)}.sb-nav-badge{margin-left:auto;background:var(--fill-accent);color:var(--on-accent);border-radius:var(--radius-pill);font-size:11px;font-weight:700;line-height:1;padding:3px 7px;min-width:18px;text-align:center}.sb-chat-list{display:flex;flex-direction:column;gap:2px;overflow-y:auto;flex:1}.sb-chat-list-item{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:9px 12px;border-radius:14px;cursor:pointer;color:var(--text-secondary);font-size:14px;min-height:36px}.sb-chat-list-item:hover{background:var(--surface-1)}.sb-chat-list-item--active{background:var(--bg-accent);color:var(--accent);font-weight:600}.sb-chat-list-item--active:hover{background:var(--bg-accent)}.sb-chat-list-item-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.sb-chat-list-item-actions{display:flex;gap:2px;flex-shrink:0;opacity:0}.sb-chat-list-item:hover .sb-chat-list-item-actions,.sb-chat-list-item:focus-within .sb-chat-list-item-actions{opacity:1}.sb-main{flex:1;min-width:0;display:flex;flex-direction:column;height:100%}.sb-main-topbar{display:none;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:.5px solid var(--border);flex-shrink:0}.sb-topbar-title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px}.sb-topbar-title--chat{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:center}.sb-topbar-chat-actions{display:flex;gap:2px;flex-shrink:0}.sb-sources-pane{flex:1;overflow-y:auto;padding:24px}.sb-sources-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;flex-wrap:wrap}.sb-sources-title{font-size:20px;font-weight:700;margin:0}.sb-sources-table-wrap{overflow-x:auto;border:.5px solid var(--border);border-radius:var(--radius-lg)}.sb-sources-table{width:100%;border-collapse:collapse;font-size:14px}.sb-sources-table th,.sb-sources-table td{padding:10px 14px;text-align:left;white-space:nowrap;border-bottom:.5px solid var(--border)}.sb-sources-title-cell{max-width:360px;overflow:hidden;text-overflow:ellipsis}.sb-sources-title-cell .sb-sources-link{display:inline-block;max-width:100%;overflow:hidden;text-overflow:ellipsis;vertical-align:bottom}.sb-sources-table th{background:var(--surface-2);font-weight:600;color:var(--text-secondary)}.sb-sources-table tbody tr:last-child td{border-bottom:none}.sb-sources-table tbody tr:hover{background:var(--surface-2)}.sb-sort-header{background:transparent;border:none;padding:0;font:inherit;font-weight:600;color:var(--text-secondary);min-height:0}.sb-sort-header:hover{color:var(--text-primary)}.sb-weight-input{width:64px;padding:4px 8px;border-radius:var(--radius-pill);border:.5px solid var(--border-strong);background:var(--surface-1);color:var(--text-primary);font-size:13px;min-height:0}.sb-weight-input:focus{outline:2px solid var(--accent);outline-offset:-1px}.sb-sources-link{color:var(--accent);text-decoration:none}.sb-sources-link:hover{text-decoration:underline}.sb-suggestions-section{margin-top:28px}.sb-suggestions-title{font-size:15px;font-weight:700;margin:0 0 10px}.sb-suggestions-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.sb-suggestion-item{font-size:13px;padding:8px 0;border-bottom:.5px solid var(--border)}.sb-suggestion-note{color:var(--text-primary)}.sb-suggestion-meta{color:var(--text-secondary)}.sb-paper-pane{flex:1;overflow-y:auto;padding:24px;max-width:640px}.sb-paper-note{margin-bottom:28px}.sb-paper-note-title{font-size:20px;font-weight:700;margin:0 0 12px}.sb-paper-note p{margin:0 0 10px;line-height:1.5;color:var(--text-primary)}.sb-paper-links{display:flex;flex-direction:column;gap:12px}.sb-paper-card{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:.5px solid var(--border);border-radius:var(--radius-lg);text-decoration:none;color:inherit;background:var(--surface-1)}.sb-paper-card:hover{border-color:var(--border-strong);background:var(--surface-2)}.sb-paper-card-title{font-size:15px;font-weight:700;color:var(--accent)}.sb-paper-card-desc{font-size:13px;color:var(--text-secondary);line-height:1.4}.sb-chat-pane{display:flex;flex-direction:column;flex:1;min-height:0}.sb-messages{flex:1;overflow-y:auto;overflow-x:hidden;padding:24px;display:flex;flex-direction:column}.sb-bubble{padding:12px 16px;line-height:1.5;white-space:pre-wrap;word-wrap:break-word;font-size:15px}.sb-bubble--user{max-width:75%;margin-left:auto;margin-bottom:14px;background:var(--fill-accent);color:var(--on-accent);border-radius:16px 16px 4px}.sb-message-block{display:flex;flex-direction:column;align-items:stretch;max-width:75%;margin-right:auto;margin-bottom:14px}.sb-bubble--assistant{background:var(--surface-2);border:.5px solid var(--border);color:var(--text-primary);border-radius:16px 16px 16px 4px}.sb-bubble--abstention{background:var(--bg-warning);border:.5px solid var(--border-warning);color:var(--text-warning);border-radius:16px 16px 16px 4px}.sb-abstention-icon{margin-right:6px}.sb-thinking{display:inline-flex;align-items:center;gap:4px;height:1.5em}.sb-thinking-dot{width:6px;height:6px;border-radius:50%;background:var(--text-secondary);animation:sb-thinking-bounce 1.2s infinite ease-in-out}.sb-thinking-dot:nth-child(2){animation-delay:.15s}.sb-thinking-dot:nth-child(3){animation-delay:.3s}@keyframes sb-thinking-bounce{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}.sb-source-links-wrap{margin-top:6px;padding:0 4px}.sb-source-toggle{display:inline-flex;align-items:center;gap:4px;padding:0;border:none;background:transparent;color:var(--text-secondary);font-size:12px;min-height:0}.sb-source-toggle:hover{color:var(--accent)}.sb-source-toggle-caret{display:inline-block;font-size:9px;transition:transform .15s ease}.sb-source-toggle-caret--open{transform:rotate(90deg)}.sb-source-links{display:flex;flex-direction:column;gap:4px;margin-top:6px}.sb-source-link{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--accent);text-decoration:none;width:100%;min-width:0}.sb-source-link:hover{text-decoration:underline}.sb-source-link-icon{font-size:9px;flex-shrink:0}.sb-source-link-title{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sb-source-link-ts{color:var(--text-secondary);flex-shrink:0}.sb-cost-estimate{padding:4px 16px 0;font-size:11px;color:var(--text-secondary);text-align:right;background:var(--surface-1);flex-shrink:0}.sb-composer{display:flex;align-items:center;gap:8px;border-top:.5px solid var(--border);padding:12px 16px;padding-bottom:max(12px,env(safe-area-inset-bottom));background:var(--surface-1);flex-shrink:0}.sb-preset-group{flex-shrink:0;display:flex;gap:2px;padding:3px;border-radius:var(--radius-pill);border:.5px solid var(--border-strong);background:var(--surface-2)}.sb-preset-chip{min-width:32px;height:34px;padding:0 8px;border-radius:var(--radius-pill);border:none;background:transparent;color:var(--text-secondary);font-size:13px;font-weight:600}.sb-preset-chip:hover{color:var(--text-primary)}.sb-preset-chip--active{background:var(--fill-accent);color:var(--on-accent)}.sb-preset-chip--active:hover{color:var(--on-accent)}.sb-preset-chip:disabled{opacity:.5;cursor:not-allowed}.sb-composer-input{flex:1;resize:none;min-height:40px;max-height:140px;padding:9px 16px;border-radius:var(--radius-lg);border:.5px solid var(--border-strong);font-size:16px;font-family:inherit;background:var(--surface-1);color:var(--text-primary)}.sb-composer-input:focus{outline:2px solid var(--accent);outline-offset:-1px}.sb-send-button{flex-shrink:0;width:40px;height:40px;border-radius:50%;border:none;background:var(--fill-accent);color:var(--on-accent);font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center}.sb-send-button:hover{background:var(--accent-hover)}.sb-send-button:disabled{opacity:.5;cursor:not-allowed}@media (max-width: 768px){.sb-main-topbar{display:flex}.sb-sidebar{position:fixed;inset:0 auto 0 0;z-index:50;width:min(var(--sidebar-width),80vw);transform:translate(-100%);transition:transform .2s ease;box-shadow:none}.sb-sidebar--open{transform:translate(0)}.sb-sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#211d1759;z-index:40}.sb-messages{padding:16px}.sb-bubble--user,.sb-message-block{max-width:88%}}@media (max-width: 1100px){.sb-sources-col-secondary{display:none}}.sb-focus-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--focus);flex:0 0 auto}.sb-focus-dot--inline{margin-right:6px;vertical-align:middle}.sb-sources-check-col{width:32px;text-align:center}.sb-sources-row--selected{background:var(--bg-focus)!important}.sb-focus-actionbar{position:sticky;bottom:0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:16px;padding:12px 16px;border-radius:var(--radius-lg);background:var(--bg-focus);border:.5px solid var(--border-focus)}.sb-focus-actionbar-count{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--focus)}.sb-focus-actionbar-buttons{display:inline-flex;gap:8px}.sb-button--focus{background:var(--focus);color:var(--on-accent)}.sb-button--focus:hover{background:var(--focus-hover)}.sb-button--ghost{background:transparent;color:var(--focus);border:.5px solid var(--border-focus)}.sb-button--ghost:hover{background:var(--bg-focus)}.sb-chat-pane--focus{box-shadow:inset 0 0 0 2px var(--border-focus)}.sb-focus-banner{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px 12px;padding:10px 16px;background:var(--bg-focus);border-bottom:.5px solid var(--border-focus);font-size:14px;color:var(--text-primary)}.sb-focus-badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--radius-pill);background:var(--focus);color:var(--on-accent);font-weight:600;font-size:12px;white-space:nowrap}.sb-focus-badge .sb-focus-dot{background:var(--on-accent)}.sb-focus-banner-text{color:var(--text-secondary)}.sb-focus-source-list{display:inline-flex;flex-wrap:wrap;gap:6px;margin-left:6px}.sb-focus-source-chip{padding:2px 8px;border-radius:var(--radius-pill);background:var(--surface-1);border:.5px solid var(--border-focus);color:var(--focus);font-size:12px}.sb-chat-list-item--focus .sb-chat-list-item-title{color:var(--focus)}