:root{color-scheme:light;--navy-900: #0B1A33;--navy-800: #14284B;--navy-700: #1F3864;--indigo-glow: #2E3F8F;--gold-500: #C9A227;--gold-400: #D9B84A;--gold-700: #9C7A1A;--gold-soft: rgba(201, 162, 39, .14);--bg: #F5F6F9;--surface: #FFFFFF;--surface-alt: #F5F6F9;--surface-3: #EEF1F6;--sidebar-bg: #EEF1F6;--sidebar-card: #FFFFFF;--ink: #111827;--ink-2: #374151;--muted: #5B6472;--line: #E3E7EE;--line-strong: #CBD2DE;--primary: var(--navy-800);--secondary: var(--navy-700);--accent-ink: var(--navy-800);--accent-tint: rgba(20, 40, 75, .07);--gold: var(--gold-500);--gold-hover: var(--gold-400);--gold-pressed: var(--gold-700);--gold-text: var(--gold-700);--user-bubble: var(--navy-700);--user-bubble-ink: #FFFFFF;--code-bg: #0B1A33;--code-ink: #E8ECF3;--code-inline-bg: rgba(20, 40, 75, .08);--success: #1B7F4B;--danger: #B42318;--danger-tint: #FFF5F4;--warning: #B7791F;--warning-tint: #FFF8E8;--shadow-sm: 0 1px 2px rgba(11, 26, 51, .05), 0 1px 3px rgba(11, 26, 51, .06);--shadow-md: 0 2px 6px rgba(11, 26, 51, .05), 0 10px 28px rgba(11, 26, 51, .08);--shadow-lg: 0 8px 24px rgba(11, 26, 51, .1), 0 24px 64px rgba(11, 26, 51, .14);--shadow-inset: inset 0 1px 2px rgba(11, 26, 51, .06);--focus-ring: 0 0 0 3px rgba(201, 162, 39, .55);--radius-sm: 10px;--radius: 14px;--radius-lg: 16px;--radius-xl: 24px;--font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;--font-mono: "Cascadia Code", Consolas, "SFMono-Regular", Menlo, monospace;--ease: cubic-bezier(.2, .7, .2, 1);font-family:var(--font)}@media(prefers-color-scheme:dark){:root{color-scheme:dark;--bg: #0F1B30;--surface: #152440;--surface-alt: #1B2C4D;--surface-3: #22365A;--sidebar-bg: #0F1B30;--sidebar-card: #1B2C4D;--ink: #E8ECF3;--ink-2: #C9D1DF;--muted: #A9B3C4;--line: rgba(255, 255, 255, .09);--line-strong: rgba(255, 255, 255, .18);--accent-ink: #B9C7E6;--accent-tint: rgba(185, 199, 230, .1);--gold-soft: rgba(201, 162, 39, .18);--gold-text: var(--gold-400);--user-bubble: #1F3864;--code-bg: #0A1426;--code-inline-bg: rgba(255, 255, 255, .1);--success: #4ADE80;--danger: #FF8A80;--danger-tint: rgba(180, 35, 24, .18);--warning: #F2C14E;--warning-tint: rgba(242, 193, 78, .12);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);--shadow-md: 0 2px 6px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .4), 0 24px 64px rgba(0, 0, 0, .45);--shadow-inset: inset 0 1px 2px rgba(0, 0, 0, .35);--focus-ring: 0 0 0 3px rgba(217, 184, 74, .6)}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--accent-ink)}button,textarea,select,input{font:inherit;color:inherit}button{cursor:pointer}h1,h2,h3{letter-spacing:-.02em;line-height:1.15}:focus-visible{outline:2px solid 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var(--ease)}.conversation-item:hover{background:var(--sidebar-card);box-shadow:var(--shadow-sm)}.conversation-row.active .conversation-item{background:var(--sidebar-card);border-left-color:var(--gold);box-shadow:var(--shadow-sm)}.conversation-row.selected .conversation-item{background:var(--gold-soft);border-color:var(--gold)}.conversation-title{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600;font-size:13.5px}.conversation-agent{display:block;margin-top:2px;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.delete-chat{border:1px solid transparent;border-radius:var(--radius-sm);background:transparent;color:var(--muted);font-size:18px;line-height:1;opacity:0;transition:opacity .15s var(--ease),background .15s var(--ease),color .15s var(--ease)}.conversation-row:hover .delete-chat,.conversation-row:focus-within .delete-chat,.conversation-row.active .delete-chat{opacity:1}.delete-chat:hover{color:var(--danger);background:var(--danger-tint)}@media(hover:none){.delete-chat{opacity:1}}.user-card{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:10px;align-items:center;border-top:1px solid var(--line);padding-top:14px}.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(160deg,var(--navy-700),var(--navy-800));color:#fff;display:grid;place-items:center;font-weight:700;font-size:14px;box-shadow:0 0 0 2px var(--sidebar-bg),0 0 0 3px var(--gold)}.user-meta{min-width:0;font-size:13px}.user-meta div,.user-meta small{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.user-meta div{font-weight:600}.user-meta small{color:var(--muted);font-size:12px}.icon-button{width:34px;height:34px;display:grid;place-items:center;background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);color:var(--muted);transition:background .15s var(--ease),color .15s var(--ease)}.icon-button:hover{background:var(--sidebar-card);color:var(--ink);border-color:var(--line)}.icon-button svg{width:18px;height:18px}.chat-shell{height:100vh;display:flex;flex-direction:column;min-height:0;background:var(--surface)}.chat-header{background:var(--surface);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:24px;padding:16px 28px;position:relative;z-index:2}.chat-header>div:first-child{min-width:0;flex:1 1 auto}.chat-header h1{margin:0;font-size:19px;font-weight:700;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.header-controls{display:flex;align-items:flex-end;justify-content:flex-end;gap:10px;flex:0 0 auto;flex-wrap:nowrap}.reset-context-button{border:1px solid var(--line-strong);border-radius:999px;background:var(--surface);color:var(--ink);font-size:12.5px;font-weight:600;padding:9px 14px;white-space:nowrap;transition:background .15s var(--ease),border-color .15s var(--ease)}.reset-context-button:hover{border-color:var(--primary);background:var(--accent-tint)}.reset-context-button:disabled{opacity:.55;cursor:not-allowed}.agent-picker{width:230px;min-width:200px;max-width:230px;display:grid;gap:6px}.agent-picker label,.response-mode-picker label{font-size:11.5px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.06em}.agent-picker select,.response-mode-picker select{width:100%;min-width:0;border:1px solid var(--line-strong);border-radius:var(--radius-sm);padding:9px 36px 9px 12px;background-color:var(--surface);color:var(--ink);font-weight:600;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235B6472' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 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6px;line-height:1.55;font-size:15.5px;color:var(--ink-2)}.welcome-panel .agent-blurb strong{color:var(--ink)}.welcome-panel .agent-switch-hint{font-size:13px;color:var(--muted);margin:0 0 8px}.welcome-panel .agent-switch-hint strong{color:var(--ink)}.prompt-grid-label{margin:28px 0 12px;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.prompt-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.prompt-card{position:relative;display:grid;grid-template-columns:38px minmax(0,1fr);gap:12px;align-items:start;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-lg);padding:14px 16px 14px 14px;color:var(--ink);text-align:left;line-height:1.45;font-size:14.5px;box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s 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