:root{--bg: #fafaf8;--bg-elev: #ffffff;--bg-raised: #f0f0ee;--bg-sidebar: #f4f3f0;--bg-input: #ffffff;--fg: #1c1c1a;--fg-muted: #5e5e58;--fg-faint: #97978f;--line: rgba(28, 28, 26, .08);--line-strong: rgba(28, 28, 26, .14);--accent: oklch(.55 .13 255);--accent-soft: oklch(.95 .025 255);--accent-fg: #ffffff;--user-bubble: #1c1c1a;--user-bubble-fg: #fafaf8;--cite-bg: oklch(.96 .012 255);--cite-fg: oklch(.42 .13 255);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 8px 24px rgba(0, 0, 0, .08);--radius: 10px;--radius-lg: 14px;--font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--font-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;--font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;--font-display: var(--font-sans);--row-pad: 14px;--msg-gap: 24px;--content-max: 760px}[data-theme=dark]{--bg: #14141a;--bg-elev: #1e1e26;--bg-raised: #26262f;--bg-sidebar: #101015;--bg-input: #1e1e26;--fg: #f0efea;--fg-muted: #a3a39c;--fg-faint: #6b6b65;--line: rgba(255, 255, 255, .07);--line-strong: rgba(255, 255, 255, .14);--accent: oklch(.72 .13 255);--accent-soft: oklch(.28 .05 255);--user-bubble: #f0efea;--user-bubble-fg: #14141a;--cite-bg: oklch(.24 .05 255);--cite-fg: oklch(.82 .1 255);--shadow-md: 0 8px 32px rgba(0, 0, 0, .36)}[data-theme=amt]{--bg: #f5f3ed;--bg-elev: #fbfaf5;--bg-raised: #ebe7dd;--bg-sidebar: #ebe7dd;--bg-input: #fbfaf5;--fg: #16202c;--fg-muted: #4a5363;--fg-faint: #8a8f97;--line: rgba(22, 32, 44, .1);--line-strong: rgba(22, 32, 44, .18);--accent: oklch(.42 .11 250);--accent-soft: oklch(.93 .03 250);--user-bubble: oklch(.42 .11 250);--user-bubble-fg: #fbfaf5;--cite-bg: oklch(.94 .025 250);--cite-fg: oklch(.38 .12 250);--font-display: var(--font-serif);--radius: 4px;--radius-lg: 6px;--shadow-sm: 0 1px 0 rgba(22, 32, 44, .04);--shadow-md: 0 2px 8px rgba(22, 32, 44, .08)}[data-type=serif]{--font-display: var(--font-serif)}[data-density=compact]{--row-pad: 8px;--msg-gap: 16px}[data-density=comfy]{--row-pad: 18px;--msg-gap: 32px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;overflow:hidden}body{font-family:var(--font-sans);font-size:14.5px;line-height:1.55;color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font-family:inherit}.setup-missing-env{padding:32px 24px;max-width:560px;margin:0 auto;line-height:1.55;color:var(--fg)}.setup-missing-env h1{font-size:1.25rem;margin:0 0 12px}.setup-missing-env p{margin:0 0 12px;color:var(--fg-muted)}.setup-missing-env code{font-family:var(--font-mono);font-size:.92em;background:var(--cite-bg);color:var(--cite-fg);padding:1px 6px;border-radius:4px}.app{display:grid;grid-template-columns:280px 1fr;height:100dvh;width:100vw;background:var(--bg);transition:grid-template-columns .22s ease}.app[data-layout=full]{grid-template-columns:0 1fr}.app[data-layout=full] .sidebar{display:none}.app[data-sidebar-collapsed=true]{grid-template-columns:52px 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var(--line)}.sidebar-head{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 10px;flex-shrink:0}.sidebar-toggle{flex-shrink:0;color:var(--fg-faint)}.sidebar-toggle:hover{color:var(--fg-muted)}.sidebar-collapsed{align-items:center;padding:14px 0 12px;gap:2px;overflow:hidden}.sidebar-col-logo{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;background:none;color:var(--accent);cursor:pointer;border-radius:var(--radius);margin-bottom:2px;transition:opacity .15s}.sidebar-col-logo:hover{opacity:.75}.sidebar-col-divider{width:20px;height:1px;background:var(--line);margin:6px 0}.brand{display:flex;align-items:center;gap:10px;color:var(--accent);background:none;border:none;padding:0;cursor:pointer;text-align:left;border-radius:var(--radius);transition:opacity .15s}.brand:hover{opacity:.75}.brand-name{font-family:var(--font-display);font-weight:600;font-size:15px;color:var(--fg);letter-spacing:-.01em}[data-theme=amt] 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.history-item.is-active{background:var(--accent-soft);color:var(--accent);box-shadow:none;border-left:2px solid var(--accent);padding-left:8px}.history-dot{width:5px;height:5px;border-radius:50%;background:var(--fg-faint);flex-shrink:0}.history-item.is-active .history-dot{background:var(--accent)}.history-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-foot{padding:10px 12px 12px;border-top:1px solid var(--line)}.user{display:flex;align-items:center;gap:10px;padding:6px;border-radius:var(--radius)}.user:hover{background:var(--bg-elev)}.avatar{width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--accent-fg);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;letter-spacing:.02em}.user-meta{flex:1;min-width:0;line-height:1.2}.user-name{font-size:12.5px;font-weight:500;color:var(--fg)}.user-team{font-size:11px;color:var(--fg-faint)}.legal-note{margin-top:8px;padding:8px;font-size:10.5px;line-height:1.4;color:var(--fg-faint)}.empty{flex:1;display:flex;align-items:flex-start;justify-content:center;padding:40px 24px 24px;overflow-y:auto}.empty-inner{max-width:var(--content-max);width:100%;margin:auto 0}.empty-heading{display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:20px}.empty-heading-left{display:flex;align-items:center;gap:14px}.empty-menu-btn{display:none}.empty-mark{flex-shrink:0;color:var(--accent)}.empty-title{font-family:var(--font-display);font-size:32px;font-weight:500;margin:0;letter-spacing:-.02em;color:var(--fg)}[data-theme=amt] .empty-title{letter-spacing:0;font-weight:400;font-size:30px}.empty-infobox{max-width:100%;margin:0 0 28px;background:var(--bg-input);border:1px solid var(--line);border-radius:12px;padding:16px 20px;text-align:left}[data-theme=amt] .empty-infobox{border-radius:var(--radius)}.empty-infobox-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--fg-faint);margin-bottom:10px}.empty-infobox-list{margin:0;padding:0 0 0 16px;display:flex;flex-direction:column;gap:7px}.empty-infobox-list li{font-size:13.5px;color:var(--fg-muted);line-height:1.5}.cite-inline{font-family:var(--font-mono);font-size:.92em;background:var(--cite-bg);color:var(--cite-fg);padding:1px 6px;border-radius:4px}.examples{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;text-align:left;margin-bottom:32px}.example{display:flex;gap:12px;padding:14px;background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;text-align:left;font:inherit;color:inherit;transition:border-color .12s,transform .12s}.example:hover{border-color:var(--line-strong);transform:translateY(-1px)}.example-icon{width:30px;height:30px;flex-shrink:0;border-radius:6px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}.example-body{flex:1;min-width:0}.example-tag{font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:4px}.example-title{font-size:13.5px;font-weight:600;color:var(--fg);line-height:1.35;margin-bottom:3px}.example-text{font-size:12.5px;color:var(--fg-muted);line-height:1.45}.empty-foot{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;font-size:11.5px;color:var(--fg-faint);border:1px solid var(--line);border-radius:999px}.empty-foot .dot{width:6px;height:6px;border-radius:50%;background:#5bb661;box-shadow:0 0 0 3px #5bb6612e}.conversation{flex:1;min-height:0;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.conversation-inner{max-width:var(--content-max);margin:0 auto;padding:32px 24px 16px;display:flex;flex-direction:column;gap:var(--msg-gap)}.msg{display:flex;gap:14px}.msg-user{justify-content:flex-end}.msg-bubble{max-width:80%;padding:10px 14px;background:var(--user-bubble);color:var(--user-bubble-fg);border-radius:16px 16px 4px;font-size:14.5px;line-height:1.5}[data-theme=amt] .msg-bubble{border-radius:var(--radius)}.msg-assistant{gap:14px}.composer-loading{display:flex;align-items:center;gap:8px;color:var(--accent)}.composer-loading-label{font-size:12px;color:var(--fg-faint)}.msg-mark{width:40px;height:40px;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:var(--accent)}.msg-content{flex:1;min-width:0;font-size:14.5px;line-height:1.62;color:var(--fg)}.msg-heading{font-family:var(--font-display);font-size:15px;font-weight:600;margin:18px 0 8px;color:var(--fg);letter-spacing:-.005em}.msg-heading:first-child{margin-top:0}[data-theme=amt] .msg-heading{font-weight:600;letter-spacing:0;font-size:16px}.msg-p{margin:0 0 10px;text-wrap:pretty}.cite-row{display:inline-flex;gap:4px;margin-left:4px;vertical-align:baseline}.cite-chip{display:inline-flex;align-items:center;gap:3px;padding:1px 7px;background:var(--cite-bg);color:var(--cite-fg);border:none;border-radius:4px;font-family:var(--font-mono);font-size:11.5px;cursor:pointer;vertical-align:baseline;transition:background .12s;white-space:nowrap}.cite-chip:hover{background:var(--accent);color:var(--accent-fg)}.cite-mono{font-family:var(--font-mono);font-size:.92em}.cite-mono.lg{font-size:18px;font-weight:600}@keyframes needle-spin-cw{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes needle-spin-ccw{0%{transform:rotate(0)}to{transform:rotate(-360deg)}}.needle-cw{animation:needle-spin-cw 2.4s cubic-bezier(.5,.1,.5,.9) infinite;transform-origin:50px 50px}.needle-ccw{animation:needle-spin-ccw 3.6s cubic-bezier(.5,.1,.5,.9) infinite;transform-origin:50px 50px}.msg-footer-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-top:14px;padding-top:10px;border-top:1px solid var(--line)}.msg-sources{display:flex;flex-wrap:wrap;align-items:center;gap:6px;flex:1;min-width:0}.msg-sources-label{font-size:11px;font-weight:600;color:var(--fg-faint);text-transform:uppercase;letter-spacing:.05em;margin-right:2px}.msg-copy-btn{flex-shrink:0;margin-top:1px;opacity:.55;transition:opacity .15s}.msg-assistant:hover .msg-copy-btn{opacity:1}.msg-suggestions{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px}.msg-suggestions-label{width:100%;font-size:12.5px;font-weight:600;color:var(--fg-faint);text-transform:uppercase;letter-spacing:.05em;margin-bottom:2px}.msg-suggestion{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line-strong);border-radius:999px;background:transparent;color:var(--fg-muted);font-size:13px;font-family:inherit;cursor:pointer;transition:background .15s,color .15s,border-color .15s;text-align:left}.msg-suggestion:hover{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}.msg-suggestion-icon{flex-shrink:0;opacity:.6}.msg-suggestion-email{border-style:dashed}.msg-action{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border:none;background:transparent;color:var(--fg-muted);font-size:12px;cursor:pointer;border-radius:6px}.msg-action:hover{background:var(--line);color:var(--fg)}.msg-action.icon-only{padding:5px}.msg-actions .spacer{flex:1}.composer-wrap{padding:0 24px 18px;background:linear-gradient(to bottom,transparent 0%,var(--bg) 30%)}.composer-wrap>.composer{max-width:var(--content-max);margin:0 auto}.composer{display:flex;flex-direction:column;background:var(--bg-input);border:1px solid var(--line-strong);border-radius:14px;box-shadow:var(--shadow-md);transition:border-color .15s}.composer:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}[data-theme=amt] .composer{border-radius:var(--radius)}.composer textarea{width:100%;border:none;outline:none;background:transparent;font:inherit;font-size:14.5px;line-height:1.5;color:var(--fg);resize:none;padding:14px 16px 0;max-height:180px;font-family:var(--font-sans)}.composer textarea::placeholder{color:var(--fg-faint)}.composer-actions{display:flex;align-items:center;justify-content:space-between;padding:8px 10px 10px 16px}.composer-hints{font-size:11.5px;color:var(--fg-faint);display:flex;align-items:center;gap:6px}.kbd{font-family:var(--font-mono);font-size:10.5px;border:1px solid var(--line);padding:1px 5px;border-radius:4px;background:var(--bg);color:var(--fg-muted)}.dot-sep{width:3px;height:3px;border-radius:50%;background:var(--fg-faint);margin:0 4px}.composer-btns{display:flex;align-items:center;gap:6px}.mic-btn{width:32px;height:32px;border-radius:8px;border:1px solid var(--line-strong);background:transparent;color:var(--fg-muted);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s,color .15s,border-color .15s;position:relative}.mic-btn:hover:not(:disabled){background:var(--line);color:var(--fg)}.mic-btn:disabled{opacity:.4;cursor:default}.mic-btn.is-listening{background:#ef4444;border-color:#ef4444;color:#fff}.mic-btn.is-listening:before{content:"";position:absolute;top:-4px;right:-4px;bottom:-4px;left:-4px;border-radius:12px;border:2px solid #ef4444;animation:mic-pulse 1.2s ease-out infinite}@keyframes mic-pulse{0%{opacity:.7;transform:scale(1)}to{opacity:0;transform:scale(1.5)}}[data-theme=amt] .mic-btn,[data-theme=amt] .mic-btn.is-listening{border-radius:var(--radius)}.send-btn{width:32px;height:32px;border-radius:8px;border:none;background:var(--accent);color:var(--accent-fg);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:opacity .15s,background .15s}.send-btn:disabled{background:var(--line-strong);color:var(--fg-faint);cursor:default}[data-theme=amt] .send-btn{border-radius:var(--radius)}.attach-btn{width:32px;height:32px;border-radius:8px;border:1px solid var(--line-strong);background:transparent;color:var(--fg-muted);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s,color .15s,border-color .15s}.attach-btn:hover:not(:disabled){background:var(--line);color:var(--fg)}.attach-btn:disabled{opacity:.4;cursor:default}.attach-btn.is-active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}[data-theme=amt] .attach-btn{border-radius:var(--radius)}.file-input-hidden{display:none}.file-chip-row{padding:10px 14px 0}.file-chip{display:inline-flex;align-items:center;gap:6px;max-width:100%;background:var(--bg-raised);border:1px solid var(--line);border-radius:8px;padding:5px 8px;font-size:12.5px;color:var(--fg-muted)}.file-chip.is-uploading{color:var(--fg-faint)}.file-chip.is-error{border-color:#ef4444;color:#ef4444;background:#ef44440f}.file-chip-icon{flex-shrink:0;color:var(--accent)}.file-chip.is-error .file-chip-icon{color:#ef4444}.file-chip-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:280px}.file-chip-remove{flex-shrink:0;width:16px;height:16px;border:none;background:transparent;color:var(--fg-faint);cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:4px;padding:0;margin-left:2px;transition:color .1s,background .1s}.file-chip-remove:hover{color:var(--fg);background:var(--line)}.file-chip-spinner{width:12px;height:12px;border:1.5px solid var(--line-strong);border-top-color:var(--accent);border-radius:50%;flex-shrink:0;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.composer-disclaimer{max-width:var(--content-max);margin:8px auto 0;text-align:center;font-size:11px;color:var(--fg-faint)}.composer-row-mobile{display:none}.cmp-spacer{flex:1}.cmp-plus-btn,.cmp-voice-btn,.cmp-loading-spinner{display:none}.sidebar,.cite-panel{position:relative}.resize-handle{position:absolute;top:0;bottom:0;width:8px;cursor:col-resize;z-index:10}.resize-handle:after{content:"";position:absolute;top:0;bottom:0;left:50%;transform:translate(-50%);width:2px;background:transparent;transition:background .15s}.resize-handle:hover:after{background:var(--accent);opacity:.55}.resize-handle-right{right:-4px}.resize-handle-left{left:-4px}.cite-panel{width:380px;flex-shrink:0;background:var(--bg-elev);border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0;animation:slideIn .2s ease-out}[data-theme=dark] .cite-panel{box-shadow:-4px 0 32px #0006}@keyframes slideIn{0%{transform:translate(20px);opacity:0}to{transform:translate(0);opacity:1}}.cite-head{display:flex;justify-content:space-between;align-items:flex-start;padding:16px 20px 14px;border-bottom:1px solid var(--line)}.cite-eyebrow{font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--fg-faint);margin-bottom:4px}.cite-id{display:flex;align-items:baseline;gap:8px}.cite-abs{font-size:12px;color:var(--fg-muted);font-family:var(--font-mono)}.cite-body{padding:18px 20px 24px;overflow-y:auto;flex:1}.cite-doc-label{font-size:11.5px;font-weight:600;letter-spacing:.04em;color:var(--accent);margin-bottom:6px;text-transform:uppercase}.cite-title{font-family:var(--font-display);font-size:19px;font-weight:600;margin:0 0 14px;letter-spacing:-.005em;color:var(--fg);line-height:1.3}.cite-rule{height:2px;width:32px;background:var(--accent);margin-bottom:16px}.cite-text{margin:0 0 18px;padding:14px 16px;background:var(--bg);border-left:2px solid var(--accent);border-radius:0 6px 6px 0;font-size:13.5px;line-height:1.6;color:var(--fg);font-style:italic}[data-theme=amt] .cite-text{font-family:var(--font-serif);font-style:normal;font-size:14px}.cite-meta{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:18px;overflow:hidden}.cite-meta-row{display:flex;align-items:baseline;gap:12px;padding:8px 12px;font-size:12px}.cite-meta-row+.cite-meta-row{border-top:1px solid var(--line)}.cite-meta-key{color:var(--fg-faint);flex-shrink:0;white-space:nowrap}.cite-meta-val{color:var(--fg);font-family:var(--font-mono);font-size:11.5px;text-align:right;margin-left:auto}.cite-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--accent);text-decoration:none;margin-bottom:24px}.cite-link:hover{text-decoration:underline}.cite-related-label{font-size:10.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-faint);margin-bottom:8px;padding-top:14px;border-top:1px solid var(--line)}.cite-related-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 0;border:none;background:transparent;font:inherit;cursor:pointer;text-align:left;border-bottom:1px solid var(--line)}.cite-related-item:hover .cite-related-title{color:var(--accent)}.cite-related-title{flex:1;font-size:13px;color:var(--fg)}.cite-related-chev{color:var(--fg-faint);flex-shrink:0}.app[data-layout=inline] .cite-panel{display:none}.mobile-menu-btn{display:none;align-items:center;justify-content:center;width:36px;height:36px;border:none;background:transparent;color:var(--fg-muted);cursor:pointer;border-radius:var(--radius);flex-shrink:0}.mobile-menu-btn:hover{background:var(--line);color:var(--fg)}.main-header-left{display:flex;align-items:center;gap:4px;min-width:0}.mobile-header-wordmark{display:none;align-items:center;justify-content:center;font-family:"Source Serif 4",Georgia,serif;font-weight:500;font-size:16px;letter-spacing:.005em;color:var(--fg);background:none;border:none;cursor:pointer;padding:6px 10px;border-radius:999px;flex-shrink:0}.mobile-header-wordmark:active{background:var(--line)}.mobile-header-spacer{display:none;width:38px;height:38px;flex-shrink:0}.mobile-header-menu{display:none;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--line);background:transparent;color:var(--fg-muted);cursor:pointer;border-radius:999px;flex-shrink:0}.mobile-header-menu:active{background:var(--line);color:var(--fg)}.mobile-empty{display:none}.mobile-spinner{color:#0e4f86}[data-theme=dark] .mobile-spinner{color:var(--fg)}.mobile-greeting{font-family:"Source Serif 4",Georgia,serif;font-weight:400;font-size:22px;line-height:1.32;letter-spacing:-.005em;color:var(--fg);text-wrap:balance;max-width:280px;margin:0}.mobile-greeting em{font-style:italic;color:var(--accent);font-weight:500}.mobile-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;padding:0 4px}.mobile-chip{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;background:var(--bg-elev);border:1px solid var(--line);border-radius:999px;color:var(--fg);font:inherit;font-size:13px;cursor:pointer;-webkit-tap-highlight-color:transparent}.mobile-chip:active{background:var(--bg-raised)}.mobile-chip-tag{font-family:JetBrains Mono,monospace;font-size:10.5px;letter-spacing:.04em;color:var(--accent);text-transform:uppercase}.sidebar-backdrop,.sheet-backdrop,.bottom-sheet,.mobile-newchat-wrap,.mobile-new-chat-pill{display:none}@media(max-width:640px){.app,.app[data-sidebar-collapsed=true],.app[data-layout=full]{grid-template-columns:1fr!important}.app .sidebar,.app[data-layout=full] .sidebar{display:flex!important;position:fixed;left:0;top:0;bottom:0;width:280px;z-index:100;transform:translate(-100%);transition:transform .25s ease;box-shadow:4px 0 32px #00000024}.app .sidebar.mobile-open{transform:translate(0)}.app .sidebar.sidebar-collapsed{width:280px;align-items:stretch;padding:0;gap:0;overflow:hidden}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:99;opacity:0;pointer-events:none;transition:opacity .22s}.sidebar-backdrop.is-visible{opacity:1;pointer-events:auto}.main{border-left:none}.main-header{padding:0 10px;justify-content:space-between;gap:0}.main-header-left{display:none}.main-header>.main-header-meta{display:none}.mobile-header-menu,.mobile-header-wordmark,.mobile-header-spacer{display:flex}.mobile-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;padding:0 28px 20px;text-align:center}.empty{display:none}.conversation{scrollbar-width:none}.conversation::-webkit-scrollbar{display:none}.conversation-inner{padding:20px 14px 12px}.composer-wrap{padding:8px 12px calc(10px + env(safe-area-inset-bottom));background:none}.composer-wrap>.composer{max-width:none;margin:0}.composer{border-radius:22px;padding:0;box-shadow:0 2px 16px #0000001a}[data-theme=amt] .composer{border-radius:22px}.composer:focus-within{box-shadow:0 2px 16px #0000001a}.composer textarea{font-size:15px;padding:14px 16px 10px;overflow-y:hidden}.composer-actions,.composer-hints{display:none}.composer-row-mobile{display:flex;align-items:center;gap:10px;padding:4px 10px 10px}.cmp-plus-btn{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:999px;background:var(--line);color:var(--fg);border:none;cursor:pointer;flex-shrink:0;-webkit-tap-highlight-color:transparent}.cmp-plus-btn:active{opacity:.7}.cmp-plus-btn:disabled{opacity:.4}.cmp-voice-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:999px;background:none;border:none;color:var(--fg-muted);cursor:pointer;flex-shrink:0;-webkit-tap-highlight-color:transparent}[data-theme=light] .cmp-voice-btn,[data-theme=amt] .cmp-voice-btn{color:var(--fg-muted)}.cmp-voice-btn.is-listening{color:var(--accent)}.cmp-voice-btn:disabled{opacity:.4}.cmp-loading-spinner{display:block;width:26px;height:26px;flex-shrink:0;color:var(--accent)}.sidebar-toggle{display:none!important}.msg-bubble{max-width:88%;font-size:14px}.msg-content{font-size:14px}.msg-mark{display:none}.msg-assistant{gap:0}.msg-footer-row{flex-wrap:wrap}.msg-suggestion{font-size:12px;padding:5px 10px}.cite-panel{display:none!important}.mobile-newchat-wrap{display:flex;justify-content:center;padding:6px 0 2px}.mobile-new-chat-pill{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;background:var(--bg-elev);color:var(--fg);border:1px solid var(--line-strong);border-radius:999px;font-size:13.5px;font-family:inherit;font-weight:500;cursor:pointer;box-shadow:0 2px 10px #00000014;white-space:nowrap}.mobile-new-chat-pill:hover{border-color:var(--accent);color:var(--accent)}.sheet-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:200;opacity:0;pointer-events:none;transition:opacity .28s}.sheet-backdrop.is-visible{opacity:1;pointer-events:auto}.bottom-sheet{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:201;background:var(--bg-elev);border-radius:20px 20px 0 0;height:62vh;max-height:100dvh;flex-direction:column;box-shadow:0 -4px 32px #00000024;transform:translateY(100%);transition:transform .3s cubic-bezier(.32,.72,0,1),height .3s cubic-bezier(.32,.72,0,1);will-change:transform,height}.bottom-sheet.is-visible{transform:translateY(0)}[data-theme=dark] .bottom-sheet{box-shadow:0 -8px 48px #0009;border-top:1px solid var(--line-strong)}.sheet-drag-zone{flex-shrink:0;cursor:grab;touch-action:none;user-select:none;-webkit-user-select:none}.sheet-drag-zone:active{cursor:grabbing}.sheet-handle-area{padding:12px 0 6px;display:flex;justify-content:center}.sheet-handle{width:40px;height:4px;background:var(--line-strong);border-radius:2px}.sheet-cite-head{display:block;padding:4px 20px 14px;border-bottom:1px solid var(--line)}.sheet-cite-head .cite-eyebrow{margin-bottom:4px}.cite-key{font-family:var(--font-mono);font-size:16px;font-weight:600;color:var(--fg);word-break:break-word}}