:root{--bg:#f6f7f9;--surface:#fff;--surface-2:#eef1f5;--border:#d8dde5;--text:#1c2330;--text-muted:#5b6577;--accent:#3d5a80;--accent-hover:#34506f;--accent-text:#fff;--accent-soft:#e2e9f3;--danger:#b42318;--danger-soft:#fdecea;--warning-soft:#fdf3dc;--warning-border:#e9c46a;--info-soft:#e7f0fa;--focus:#2f6fd6;--code-bg:#eef1f5;--shadow:0 8px 28px #0f172a24;--radius:8px;--font:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#12161d;--surface:#191e27;--surface-2:#222937;--border:#2f3747;--text:#e6e9ef;--text-muted:#9aa4b5;--accent:#7ea6d8;--accent-hover:#93b5e0;--accent-text:#0f1520;--accent-soft:#24324a;--danger:#f2877d;--danger-soft:#3a1f1f;--warning-soft:#352b15;--warning-border:#8a6d22;--info-soft:#1d2a3d;--focus:#8ab4f8;--code-bg:#222937;--shadow:0 8px 28px #00000080;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font:15px/1.55 var(--font);-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}code{font-family:var(--mono);font-size:.9em}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.app{grid-template-columns:280px minmax(0,1fr);height:100%;display:grid}.sidebar-container{border-right:1px solid var(--border);background:var(--surface);min-height:0}.scrim{display:none}.chat{flex-direction:column;min-width:0;min-height:0;display:flex}.chat-header .sidebar-toggle{display:none}@media (width<=760px){.app{grid-template-columns:minmax(0,1fr)}.sidebar-container{z-index:20;width:min(300px,85vw);transition:transform .16s;position:fixed;inset:0 auto 0 0;transform:translate(-100%)}.sidebar-open .sidebar-container{box-shadow:var(--shadow);transform:none}.sidebar-open .scrim{z-index:10;background:#00000059;display:block;position:fixed;inset:0}.chat-header .sidebar-toggle{display:inline-flex}.composer-hint{display:none}.chat-header{padding:10px 12px}.message-list,.composer{padding-left:16px;padding-right:16px}}@media (width<=480px){.chat-header .badge{display:none}}.button,.icon-button,.select-button,.thinking-trigger,.banner-dismiss{font:inherit;color:inherit;cursor:default;outline:none}.button{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);white-space:nowrap;align-items:center;gap:6px;padding:7px 14px;font-weight:500;display:inline-flex}.button[data-hovered]{background:var(--surface-2)}.button[data-pressed]{transform:translateY(1px)}.button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}.button.primary[data-hovered]{background:var(--accent-hover)}.button.danger{background:var(--danger);border-color:var(--danger);color:#fff}.button.small{padding:4px 10px;font-size:13px}.button[data-disabled]{opacity:.5}.icon-button{color:var(--text-muted);background:0 0;border:none;border-radius:6px;align-items:center;gap:4px;padding:5px;display:inline-flex}.icon-button[data-hovered]{background:var(--surface-2);color:var(--text)}.icon-button-label{font-size:12px}[data-focus-visible]{outline-offset:2px;outline:2px solid var(--focus)!important}.sidebar{flex-direction:column;height:100%;display:flex}.sidebar-header{justify-content:space-between;align-items:center;gap:8px;padding:14px 14px 10px;display:flex}.app-name{font-weight:650}.conversation-list{outline:none;flex:1;padding:4px 8px 12px;overflow-y:auto}.sidebar-footer{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding:10px 14px 14px;display:flex}.user-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--text-muted);font-size:14px;overflow:hidden}.sidebar-empty{color:var(--text-muted);padding:12px 8px;font-size:14px}.conversation-item{border-radius:var(--radius);outline:none;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"title actions""meta actions";align-items:center;column-gap:4px;padding:7px 6px 7px 10px;display:grid}.conversation-item[data-hovered]{background:var(--surface-2)}.conversation-item[data-selected]{background:var(--accent-soft)}.conversation-item[data-focus-visible]{outline-offset:-2px}.conversation-title{text-overflow:ellipsis;white-space:nowrap;grid-area:title;font-size:14px;overflow:hidden}.conversation-meta{color:var(--text-muted);grid-area:meta;font-size:12px}.conversation-actions{opacity:0;grid-area:actions}.conversation-item[data-hovered] .conversation-actions,.conversation-item[data-selected] .conversation-actions,.conversation-item[data-focus-visible] .conversation-actions,.conversation-actions[data-focus-visible],.conversation-actions[data-pressed]{opacity:1}@media (hover:none){.conversation-actions{opacity:1}}.chat-header{border-bottom:1px solid var(--border);background:var(--surface);align-items:center;gap:10px;min-height:54px;padding:10px 20px;display:flex}.chat-title{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:16px;font-weight:600;overflow:hidden}.badge{background:var(--surface-2);color:var(--text-muted);white-space:nowrap;border-radius:4px;padding:2px 8px;font-size:12px}.banner{border-radius:var(--radius);align-items:center;gap:8px;margin:12px 20px 0;padding:10px 14px;font-size:14px;display:flex}.banner-warning{background:var(--warning-soft);border:1px solid var(--warning-border)}.banner-error{background:var(--danger-soft);border:1px solid var(--danger)}.banner-dismiss{background:0 0;border:none;margin-left:auto;font-size:18px;line-height:1}.fatal{gap:10px;max-width:560px;margin:15vh auto;padding:0 16px;display:grid}.empty{text-align:center;color:var(--text-muted);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:10px;padding:24px;display:flex}.empty h2{color:var(--text);font-size:18px;font-weight:600}.message-scroll{flex:1;overflow-y:auto}.message-list{grid-template-columns:minmax(0,1fr);gap:22px;max-width:780px;margin:0 auto;padding:24px 20px 12px;list-style:none;display:grid}.message-user{justify-self:end;max-width:min(85%,640px)}.user-bubble{justify-items:end;gap:4px;display:grid}.user-text{background:var(--accent-soft);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:12px;padding:10px 14px}.tag{color:var(--text-muted);font-size:12px}.assistant{grid-template-columns:minmax(0,1fr);gap:10px;min-width:0;display:grid}.thinking-heading{font-size:inherit;font-weight:inherit}.thinking-trigger{color:var(--text-muted);background:0 0;border:none;border-radius:6px;align-items:center;gap:4px;padding:2px 6px 2px 2px;font-size:13px;display:inline-flex}.thinking-trigger[data-hovered]{color:var(--text)}.thinking-chevron{transition:transform .12s}.thinking[data-expanded] .thinking-chevron{transform:rotate(90deg)}.thinking-panel p{border-left:2px solid var(--border);color:var(--text-muted);white-space:pre-wrap;margin-top:6px;padding:8px 12px;font-size:14px}.pending{color:var(--text-muted);align-items:center;gap:8px;font-size:14px;display:flex}.pending-dot{background:var(--accent);border-radius:50%;width:8px;height:8px;animation:1.2s ease-in-out infinite pulse}@keyframes pulse{50%{opacity:.25}}@media (prefers-reduced-motion:reduce){.pending-dot{animation:none}}.notice{border-radius:var(--radius);padding:8px 12px;font-size:13px}.notice-warning{background:var(--warning-soft);border:1px solid var(--warning-border)}.notice-info{background:var(--info-soft)}.message-footer{color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;display:flex}.markdown{overflow-wrap:anywhere}.markdown>:first-child{margin-top:0}.markdown>:last-child{margin-bottom:0}.markdown p,.markdown ul,.markdown ol,.markdown pre,.markdown blockquote,.markdown table{margin:0 0 .8em}.markdown h1,.markdown h2,.markdown h3,.markdown h4{margin:1.1em 0 .5em;line-height:1.3}.markdown h1{font-size:1.35em}.markdown h2{font-size:1.2em}.markdown h3,.markdown h4{font-size:1.05em}.markdown a{color:var(--accent)}.markdown :not(pre)>code{background:var(--code-bg);border-radius:4px;padding:1px 5px}.markdown pre{border:1px solid var(--border);border-radius:var(--radius);background:var(--code-bg);padding:12px 14px;font-size:13px;line-height:1.5;overflow-x:auto}.markdown blockquote{border-left:3px solid var(--border);color:var(--text-muted);padding-left:12px}.markdown table{border-collapse:collapse;display:block;overflow-x:auto}.markdown th,.markdown td{border:1px solid var(--border);padding:6px 10px}.markdown th{background:var(--surface-2)}.composer{width:100%;max-width:780px;margin:0 auto;padding:8px 20px 18px}.composer-field{display:block}.composer-input{field-sizing:content;resize:none;border:1px solid var(--border);background:var(--surface);width:100%;min-height:52px;max-height:40vh;color:var(--text);font:inherit;border-bottom:none;border-radius:10px 10px 0 0;outline:none;padding:12px 14px;display:block}.composer-input[data-focused]{border-color:var(--accent)}.composer-bar{border:1px solid var(--border);border-top:1px solid var(--surface-2);background:var(--surface);border-radius:0 0 10px 10px;align-items:center;gap:12px;padding:8px 10px;display:flex}.composer-hint{color:var(--text-muted);flex:1;font-size:12px}.select.effort-select{align-items:center;gap:6px;display:flex}.effort-select .field-label{margin:0}.field,.select{gap:6px;display:grid}.field-label{font-size:13px;font-weight:550}.field-description{color:var(--text-muted);font-size:12px}.input,.textarea{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);width:100%;color:var(--text);font:inherit;outline:none;padding:8px 10px}.textarea{resize:vertical}.input[data-focused],.textarea[data-focused]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.select-button{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);text-align:left;justify-content:space-between;align-items:center;gap:8px;min-width:110px;padding:6px 10px;display:inline-flex}.select-button[data-hovered]{background:var(--surface-2)}.select-value{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.select-value .listbox-item-description{display:none}.select-chevron{color:var(--text-muted);flex:none}.popover{min-width:var(--trigger-width);border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);max-width:min(420px,100vw - 32px);box-shadow:var(--shadow);outline:none;padding:4px}.popover[data-entering]{animation:.1s ease-out fade-in}.listbox,.menu{outline:none;max-height:320px;overflow-y:auto}.listbox-item,.menu-item{border-radius:6px;outline:none;padding:6px 10px;font-size:14px;display:grid}.listbox-item[data-focused],.menu-item[data-focused]{background:var(--surface-2)}.listbox-item[data-selected]{font-weight:600}.listbox-item-description{color:var(--text-muted);font-family:var(--mono);font-size:11px;font-weight:400}.menu-item.danger{color:var(--danger)}.menu-item[data-disabled]{opacity:.45}.system-popover{width:min(480px,100vw - 32px)}.popover-dialog{outline:none;max-height:50vh;padding:8px 10px;overflow-y:auto}.system-prompt-text{white-space:pre-wrap;font-size:14px}.modal-overlay{z-index:30;background:#0006;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-overlay[data-entering]{animation:.12s ease-out fade-in}.modal{border:1px solid var(--border);background:var(--surface);width:min(520px,100%);max-height:calc(100vh - 32px);box-shadow:var(--shadow);border-radius:12px;overflow-y:auto}.dialog{outline:none;padding:20px}.dialog-form{gap:16px;display:grid}.dialog-title{font-size:17px;font-weight:600}.dialog-actions{justify-content:flex-end;gap:8px;display:flex}.form-error{color:var(--danger);font-size:14px}@keyframes fade-in{0%{opacity:0}}