:root{color-scheme:dark;--bg:#202122;--sidebar:#171819;--panel:#2b2c2e;--hover:#333537;--border:#3a3b3e;--text:#eeefee;--muted:#979b99;--accent:#acd7bc;--user:#303335;--shadow:0 18px 60px #0004}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;height:100dvh;display:flex}body.light{color-scheme:light;--bg:#fcfcfa;--sidebar:#f0f1ed;--panel:#fff;--hover:#e9ece7;--border:#dadfd6;--text:#262b28;--muted:#69726b;--accent:#326e48;--user:#ebefe9;--shadow:0 18px 60px #0001}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit;border:0;background:transparent}button:disabled{opacity:.5;cursor:wait}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}input,textarea,select{outline:none;color:var(--text)}input:focus,textarea:focus,select:focus{border-color:var(--accent)}aside{width:264px;flex-shrink:0;background:var(--sidebar);display:flex;flex-direction:column;padding:28px 17px 12px;border-right:1px solid #ffffff04}.brand{display:flex;align-items:center;gap:9px;color:var(--text);text-decoration:none;font-weight:650;font-size:18px;padding:0 5px}.brand-icon{font-size:31px;color:var(--accent);line-height:1}.badge{font-size:9px;letter-spacing:1px;color:var(--muted);border:1px solid var(--border);border-radius:4px;padding:1px 4px;margin-left:auto}.new-chat{display:flex;align-items:center;gap:9px;background:var(--panel);border:1px solid var(--border);padding:10px;border-radius:9px;margin:31px 0}.new-chat span{font-size:21px}.new-chat small{margin-left:auto;color:var(--muted);font-size:10px}.section-label{font-size:10px;letter-spacing:1.4px;color:var(--muted);padding:0 10px;margin-bottom:12px}#history{overflow:auto;flex:1}.history-row{display:flex;border-radius:8px;margin:3px 0;align-items:center}.history-row.active,.history-row:hover{background:var(--panel)}.history-open{text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;padding:10px;font-size:13px}.delete-chat{font-size:18px;opacity:.55;padding:4px 10px}.empty-history{padding:10px;color:var(--muted);font-size:12px}.sidebar-bottom{border-top:1px solid var(--border);padding-top:13px}.sidebar-bottom>button{display:flex;gap:10px;padding:10px;width:100%;text-align:left;color:var(--muted)}.profile{display:flex;gap:10px;align-items:center;padding:20px 7px 5px;font-size:12px}.profile small{display:block;font-size:10px;color:var(--muted)}.avatar{background:#364c40;color:#cae4d3;border-radius:50%;width:32px;height:32px;display:grid;place-items:center}.green-dot{height:6px;width:6px;border-radius:50%;background:#8ccc9f;margin-left:auto}main{min-width:0;flex:1;display:flex;flex-direction:column}header{height:77px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 31px}.header-left,.header-right{display:flex;align-items:center;gap:16px}header strong{font-size:16px;font-weight:550}header strong span{color:var(--border);padding:0 12px}header small{color:var(--muted);font-size:14px;font-weight:400}.status{font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:30px;padding:4px 11px}.status.connected{color:var(--accent)}.icon-button{min-width:32px;height:32px;border-radius:7px;display:inline-grid;place-items:center;font-size:22px;color:var(--muted)}button:hover{background:var(--hover)}#menuBtn{display:none}#scrollArea{flex:1;overflow-y:auto;padding:20px 35px;scroll-behavior:smooth}#welcome{max-width:790px;margin:65px auto 45px;text-align:center}.welcome-icon{color:var(--accent);font-size:48px;line-height:1;margin-bottom:27px}.eyebrow{letter-spacing:2.2px;font-size:10px;color:var(--muted)}h1{font-size:42px;line-height:1.18;font-weight:500;letter-spacing:-1.6px;margin:18px 0}#welcome>p{font-size:14px;line-height:1.8;color:var(--muted);margin:18px 0 38px}.suggestions{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;text-align:left}.suggestions button{text-align:left;border:1px solid var(--border);padding:19px 16px;border-radius:13px}.suggestions span{display:block;color:var(--accent);font-size:24px;line-height:1;margin-bottom:21px}.suggestions strong{display:block;font-size:12px;font-weight:500}.suggestions small{display:block;color:var(--muted);font-size:10px;margin-top:4px}footer{width:100%;max-width:890px;margin:0 auto;padding:12px 35px 20px}.composer-shell{background:var(--panel);border:1px solid var(--border);border-radius:20px;padding:16px 16px 12px;box-shadow:0 3px 16px #0001}.composer-shell.dragover{outline:2px dashed var(--accent)}#prompt{display:block;width:100%;max-height:180px;min-height:44px;resize:none;background:none;border:none;padding:0 4px;font-size:14px;line-height:1.6}textarea::placeholder{color:var(--muted)}.composer-actions{display:flex;align-items:center;justify-content:space-between;margin-top:10px}.composer-actions>div{display:flex;align-items:center;gap:9px}.composer-actions select{border:1px solid var(--border);border-radius:20px;background:transparent;font-size:11px;padding:5px 12px;max-width:200px}.composer-actions option{background:var(--panel)}.send-button{width:35px;height:35px;border-radius:50%;background:var(--text);color:var(--bg);font-size:24px;line-height:1}.send-button:hover{background:var(--accent)}.footer-note{display:flex;justify-content:space-between;color:var(--muted);font-size:9px;margin:10px 5px 0;gap:15px}#modelLabel{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:55%}#attachments{display:flex;gap:9px;flex-wrap:wrap}.attachment{position:relative;margin-bottom:14px;max-width:115px}.attachment img{width:95px;height:68px;object-fit:cover;border:1px solid var(--border);border-radius:8px}.attachment small{display:block;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:9px}.attachment button{position:absolute;top:-5px;right:10px;background:var(--text);color:var(--bg);border-radius:50%;height:20px;width:20px;line-height:15px}#messages{max-width:790px;margin:auto;padding:8px 0 30px}.message{margin-bottom:30px;overflow-wrap:anywhere}.message.user{display:flex;align-items:flex-end;flex-direction:column}.user .message-content{background:var(--user);padding:13px 20px;border-radius:20px;max-width:85%;white-space:pre-wrap}.assistant .message-heading{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);margin-bottom:13px}.assistant .message-heading span{color:var(--accent);font-size:24px}.message-images{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px;margin-bottom:10px}.message-images img{max-width:230px;max-height:190px;border-radius:12px;cursor:zoom-in;object-fit:contain}.message-content p{margin:0 0 12px}.message-content h2,.message-content h3,.message-content h4{font-size:19px;line-height:1.4;margin:24px 0 10px}.message-content pre{white-space:pre-wrap;background:var(--sidebar);border:1px solid var(--border);border-radius:9px;padding:15px;overflow:auto;font-size:12px}.message-content code{background:var(--sidebar);padding:2px 4px;border-radius:4px;font-size:13px}.message-content pre code{padding:0}.message-content ul,.message-content ol{padding-left:24px}.table-wrap{overflow:auto}.message-content table{border-collapse:collapse;width:100%;font-size:13px;margin:15px 0}.message-content td,.message-content th{border:1px solid var(--border);padding:8px 12px;text-align:left}.message-content th{background:var(--panel)}.message-content blockquote{border-left:3px solid var(--accent);padding-left:14px;margin-left:0;color:var(--muted)}.message-tools{display:flex;gap:8px;margin-top:10px}.message-tools button{font-size:11px;color:var(--muted);padding:4px 7px;border-radius:5px}.message-error{color:#e9a397;font-size:12px;margin-top:10px;white-space:pre-wrap}.reasoning{font-size:12px;color:var(--muted);border-left:2px solid var(--border);padding:0 12px;margin:10px 0 20px}.reasoning pre{white-space:pre-wrap;font:inherit}.thinking{color:var(--muted);font-size:13px}.thinking:after{content:' ···';animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.3}}dialog{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:18px;padding:25px;width:530px;max-width:calc(100% - 25px);max-height:90dvh;box-shadow:var(--shadow)}dialog::backdrop{background:#0008;backdrop-filter:blur(4px)}.dialog-title{display:flex;align-items:center;justify-content:space-between}.dialog-title h2{margin:0;font-size:22px;font-weight:550}.muted,.privacy-note{color:var(--muted);font-size:12px;line-height:1.6}.privacy-note{font-size:10px;margin:16px 0 0}label{display:block;font-size:12px;margin:16px 0}label small{font-size:10px;color:var(--muted);font-weight:400}label input,label select,label textarea{display:block;width:100%;padding:9px 11px;background:var(--panel);border:1px solid var(--border);border-radius:7px;margin-top:6px;font-size:13px}label textarea{resize:vertical}.primary,.secondary{border-radius:8px;padding:10px 16px;width:100%;font-size:13px}.primary{background:var(--accent);color:var(--sidebar);font-weight:600}.secondary{border:1px solid var(--border);background:var(--panel)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}#toast{position:fixed;bottom:110px;left:50%;transform:translateX(-50%);z-index:20;background:var(--text);color:var(--bg);padding:12px 20px;border-radius:10px;box-shadow:var(--shadow);font-size:13px;max-width:90%;white-space:pre-wrap}#imageDialog{width:auto;max-width:95vw;max-height:95vh;padding:12px}#imageDialog>button{display:block;margin-left:auto}#largeImage{max-width:88vw;max-height:82vh;object-fit:contain}body.busy #settingsBtn,body.busy .delete-chat,body.busy .history-open,body.busy #newChat{pointer-events:none;opacity:.5}[hidden]{display:none!important}@media(min-height:900px){#welcome{margin-top:110px}}@media(max-width:1050px){aside{width:225px}#welcome{margin-top:40px}h1{font-size:36px}.suggestions{gap:7px}.suggestions button{padding:15px 10px}.suggestions small{font-size:9px}}@media(max-width:760px){aside{display:none;position:fixed;z-index:10;height:100dvh;width:265px;box-shadow:var(--shadow)}aside.open{display:flex}#menuBtn{display:inline-grid}header{padding:0 16px;height:65px}.header-left,.header-right{gap:7px}header strong{font-size:14px}header small,header strong span{display:none}.status{font-size:9px;padding:4px 7px}#scrollArea{padding:10px 18px}#welcome{margin-top:30px}h1{font-size:32px}.suggestions{grid-template-columns:1fr;gap:8px}.suggestions button{padding:13px;display:grid;grid-template-columns:30px 1fr}.suggestions span{grid-row:span 2;margin:3px 8px 0 0}.suggestions small{font-size:10px}.suggestions strong{font-size:12px}footer{padding:10px 14px 15px}.footer-note{font-size:8px;gap:8px}.message-images img{max-width:170px}.user .message-content{max-width:94%}#welcome>p{margin-bottom:23px}.welcome-icon{margin-bottom:18px}}

/* v5: rodapé em linhas independentes, sem cortar modelo ou créditos. */
body{overflow:hidden}main{min-height:0}#scrollArea{min-height:0}footer{flex-shrink:0}
.footer-note{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:8px 18px;font-size:10px}
#modelLabel{max-width:none;min-width:0;overflow:visible;text-overflow:clip;white-space:normal;overflow-wrap:anywhere;line-height:1.5}
.keyboard-hint{white-space:nowrap;text-align:right}
.footer-credits{margin:7px 5px 0;color:var(--muted);font-size:10px;line-height:1.55;text-align:center;overflow-wrap:break-word}
.close-sidebar,.sidebar-backdrop{display:none}
.file-progress{margin:0 3px 12px;font-size:12px;color:var(--accent);overflow-wrap:anywhere}
.pdf-actions{display:flex;gap:10px}.pdf-actions>button{flex:1}
.message-attachment{margin:0;max-width:230px;min-width:0}.message-attachment figcaption{font-size:10px;color:var(--muted);overflow-wrap:anywhere;margin:4px 0 8px}
.attachment{max-width:140px}.attachment small{max-width:130px;white-space:normal;overflow-wrap:anywhere;line-height:1.4}
body.processing #settingsBtn,body.processing .delete-chat,body.processing .history-open,body.processing #newChat{pointer-events:none;opacity:.5}
.math-block{max-width:100%;overflow-x:auto;overflow-y:hidden;margin:16px 0;padding:4px 0;overscroll-behavior-x:contain}
.math-block .katex-display{margin:0;text-align:left}.math-block .katex-display>.katex{text-align:left}
.math-inline .katex{font-size:1.08em}.math-fallback{white-space:pre-wrap;overflow-wrap:anywhere}
.message-content{min-width:0;max-width:100%}.message-content .katex{overflow-wrap:normal}
@media(max-width:760px){
 aside{inset:0 auto 0 0;width:min(290px,85vw);z-index:40;padding-top:57px;overflow-y:auto}
 .close-sidebar{display:grid;position:absolute;right:10px;top:10px;min-width:40px;height:40px;font-size:29px}
 .sidebar-backdrop:not([hidden]){display:block;position:fixed;inset:0;z-index:35;background:#0009;width:100%;height:100dvh;border-radius:0;cursor:pointer;touch-action:manipulation}
 .sidebar-backdrop:hover{background:#0009}
 header{gap:8px}.header-left{min-width:0}.header-left strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
 .header-right{flex-shrink:0}.header-right .status{max-width:110px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .footer-note{grid-template-columns:minmax(0,1fr);gap:3px;font-size:10px}
 .keyboard-hint{display:none}.footer-credits{font-size:9px;line-height:1.5;margin-top:7px;text-align:left}
 footer{padding-bottom:max(10px,env(safe-area-inset-bottom))}
 .message-attachment{max-width:170px}.math-block .katex{font-size:1.05em}
 .form-grid{gap:10px}label input,label select,label textarea,#prompt{font-size:16px}
}
@media(max-width:370px){header{padding:0 10px}.header-right{gap:2px}.header-right .status{max-width:89px;font-size:8px}.header-left strong{font-size:12px}}

.web-search-button{border:1px solid var(--border);border-radius:20px;padding:5px 10px;font-size:11px;white-space:nowrap}.web-search-button[aria-pressed="true"]{background:var(--accent);color:var(--sidebar)}.search-status{font-size:12px;color:var(--accent)}.search-sources{font-size:12px;margin:12px 0}.search-sources a{display:block;color:var(--accent);overflow-wrap:anywhere}.composer-actions>div{flex-wrap:wrap}