:root{--bg:#0f0f0f;--surface:#1f1f1f;--panel:#202020;--hover:#2b2b2b;--line:#333;--text:#e3e3e3;--muted:#b6b6b6;--blue:#a8c7fa;--accent:#2445a8;--bubble:#25282d;--shadow:0 10px 45px #0007;--rail:52px;--radius:24px;font-family:'Inter','Vazirmatn',Arial,'Segoe UI',Tahoma,sans-serif;color-scheme:dark}
html[data-theme=light]{--bg:#fff;--surface:#f0f2f5;--panel:#fff;--hover:#e6e9ee;--line:#dce0e5;--text:#202124;--muted:#575c63;--blue:#2454ad;--accent:#d3e3fd;--bubble:#e9eef6;--shadow:0 10px 45px #14233a26;color-scheme:light}
*{box-sizing:border-box}body{margin:0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;background:var(--bg);color:var(--text);font-size:14px;overflow:hidden}button,input,textarea,select{font:inherit}button{cursor:pointer;color:inherit;border:0;background:transparent}a{color:var(--blue)}button:disabled{cursor:default;opacity:.45}button,input,textarea,select{outline:none}button:focus-visible,a:focus-visible{outline:2px solid var(--blue);outline-offset:3px}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--blue);outline-offset:1px}button:hover{background:var(--hover)}svg.icon{width:22px;height:22px;display:block;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.icon.small{width:18px;height:18px}.ico{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;flex-shrink:0;position:relative}.ico[title]:hover:after{content:attr(title);position:absolute;inset-block-start:calc(100% + 7px);inset-inline-start:50%;transform:translateX(-50%);font-size:11px;white-space:nowrap;padding:6px 9px;background:var(--hover);border:1px solid var(--line);border-radius:6px;z-index:30;pointer-events:none}.spark{width:24px;height:24px;object-fit:contain}.pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:24px;padding:10px 15px;background:var(--surface);white-space:nowrap}.primary{background:var(--accent);color:#e8edff}.primary:hover{filter:brightness(1.14);background:var(--accent)}html[data-theme=light] .primary{color:#17397a}.muted{color:var(--muted)}.hidden,[hidden]{display:none!important}.row{display:flex;align-items:center;gap:10px}.spacer{flex:1}.subtle{font-size:12px;color:var(--muted);line-height:1.7}.tag{font-size:10px;background:var(--hover);padding:3px 6px;border-radius:5px;color:var(--muted)}
#sidebar{position:fixed;inset-block:0;inset-inline-start:0;width:var(--rail);z-index:35;display:flex;flex-direction:column;padding:8px 6px 12px;transition:width .2s;background:var(--bg)}body.expanded{--rail:272px}body.expanded #sidebar{background:var(--surface);padding-inline:12px}.rail-head{display:flex;align-items:center;height:40px;gap:6px;margin-bottom:8px}.brand-label{font-size:21px;display:none}.expanded .brand-label{display:block}.rail-top{display:flex;flex-direction:column;gap:3px}.nav-item{display:flex;align-items:center;min-height:38px;border-radius:22px;gap:14px;padding:8px 9px;text-align:start;white-space:nowrap;overflow:hidden}.nav-item svg{width:20px;height:20px}.nav-label{display:none}.expanded .nav-label{display:block}.nav-item.active{background:var(--hover)}.rail-bottom{margin-top:auto;display:flex;flex-direction:column;gap:4px}.profile{width:28px;height:28px;border-radius:50%;background:#ec4080;color:white;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}.recent{display:none;overflow:auto;flex:1;margin-top:25px}.expanded .recent{display:block}.recent-heading{display:flex;justify-content:space-between;align-items:center;padding:0 10px 10px;font-size:12px;color:var(--muted)}.recent-item{display:flex;align-items:center;border-radius:20px;padding:0 7px;margin:2px 0}.recent-item.current{background:var(--hover)}.recent-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:10px 3px;text-align:start;font-size:13px}.recent-item .ico{width:28px;height:28px;opacity:0}.recent-item:hover .ico,.recent-item:focus-within .ico{opacity:1}.empty-recent{padding:6px 10px;font-size:12px;line-height:1.7;color:var(--muted)}
#main{margin-inline-start:var(--rail);height:100dvh;transition:margin .2s;position:relative;display:flex;flex-direction:column}header{height:64px;min-height:64px;display:flex;align-items:center;justify-content:flex-end;gap:12px;padding:10px 20px}.mobile-brand{display:none;font-size:21px}.header-context{margin-inline-end:auto;color:var(--muted);max-width:35vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.header-context:empty{display:none}.header-app{height:36px;padding:8px 13px}#home{position:absolute;inset:64px 0 0;pointer-events:none}#home h1{position:absolute;top:calc(30.5vh - 86px);width:100%;font-size:36px;font-weight:400;letter-spacing:-1.1px;margin:0;text-align:center;line-height:1.25}.home-suggestions{position:absolute;top:calc(50vh - 20px);left:50%;transform:translateX(-50%);width:min(636px,calc(100% - 72px));pointer-events:auto}.suggestion{display:flex;align-items:center;border-radius:14px;min-height:48px;position:relative}.suggestion>button:first-child{flex:1;display:flex;align-items:center;gap:16px;text-align:start;padding:13px 15px;border-radius:14px;font-size:14px;min-width:0}.suggestion .icon{width:19px;height:19px}.suggestion .dismiss{opacity:0;width:30px;height:30px;position:absolute;inset-inline-end:8px;background:var(--bg)}.suggestion:hover .dismiss,.suggestion:focus-within .dismiss{opacity:1}.suggestion:hover{background:var(--surface)}
#composer-wrap{position:absolute;top:calc(50% - 32px);left:50%;transform:translateX(-50%);width:min(660px,calc(100% - 48px));z-index:12}.composer{position:relative;border-radius:32px;background:var(--surface);border:1px solid transparent;padding:11px 10px;box-shadow:0 3px 8px #0001}.composer:focus-within{border-color:var(--line)}.compose-main{display:flex;align-items:center;gap:6px}#prompt{resize:none;background:none;border:0;color:var(--text);line-height:24px;font-size:16px;min-height:24px;max-height:180px;padding:8px 0;flex:1;min-width:0;overflow-y:auto;outline:none!important}#prompt::placeholder{color:#b8bbc0}.model-button{display:flex;align-items:center;justify-content:center;min-width:142px;gap:4px;padding:10px;border-radius:22px;font-size:14px;white-space:nowrap}.model-button .icon{width:16px;height:16px}.model-secondary{color:var(--muted)}#send{background:var(--text);color:var(--bg);display:none}body.has-input #send,body.busy #send{display:inline-flex}body.has-input #mic,body.busy #mic{display:none}.composer-files{display:flex;flex-wrap:wrap;gap:8px;padding:5px 8px 9px}.composer-files:empty{display:none}.file-chip{border:1px solid var(--line);border-radius:13px;display:flex;align-items:center;gap:8px;padding:6px;max-width:220px;background:var(--bg)}.file-chip img{width:40px;height:40px;object-fit:cover;border-radius:8px}.file-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}.file-chip .ico{width:24px;height:24px}.tool-chip{display:flex;align-items:center;gap:6px;color:var(--blue);font-size:12px;padding:0 12px 5px}.tool-chip:empty{display:none}.tool-chip .ico{width:24px;height:24px}.footer-note{position:absolute;bottom:8px;left:10px;right:10px;text-align:center;font-size:10px;color:var(--muted);opacity:.65;line-height:1.4}.footer-note button{font-size:inherit;text-decoration:underline;border-radius:4px;padding:0 2px}
#messages{flex:1;overflow:auto;padding:30px max(24px,calc((100% - 760px)/2)) 190px;display:none}.chatting #home{display:none}.chatting #messages{display:block}.chatting #composer-wrap{top:auto;bottom:38px;width:min(760px,calc(100% - 48px))}.chatting .composer{border-radius:28px}.message{margin:0 0 30px;line-height:1.8;animation:appear .2s ease}.message.user{display:flex;flex-direction:column;align-items:flex-end}.bubble{padding:13px 21px;border-radius:24px;background:var(--bubble);max-width:88%;white-space:pre-wrap;overflow-wrap:anywhere;text-align:start}.message .meta-actions{opacity:0;display:flex;gap:3px;margin-top:5px}.message:hover .meta-actions,.message:focus-within .meta-actions{opacity:1}.message.assistant{display:grid;grid-template-columns:30px minmax(0,1fr);gap:14px}.message.assistant .spark{margin-top:6px}.answer{overflow-wrap:anywhere;min-width:0;direction:auto}.answer p{margin:0 0 12px}.answer ul{padding-inline-start:24px}.answer h2{font-size:22px}.answer h3{font-size:18px}.answer code{font-family:Consolas,monospace;font-size:13px;background:var(--hover);padding:2px 5px;border-radius:4px}.codebox{border:1px solid var(--line);border-radius:14px;overflow:hidden;margin:16px 0;direction:ltr;text-align:left}.codehead{padding:7px 12px;background:var(--hover);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}.codehead button{padding:4px 8px;border-radius:6px}.codebox pre{margin:0;overflow:auto;padding:16px;background:var(--surface)}.codebox code{background:none;padding:0}.answer-actions{display:flex;align-items:center;gap:2px;margin-top:8px;color:var(--muted)}.answer-actions .ico{width:32px;height:32px}.answer-actions .icon{width:17px;height:17px}.answer-actions .selected{color:var(--blue);background:var(--hover)}.inline-files{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px;max-width:90%}.inline-files button{border:1px solid var(--line);padding:8px;border-radius:12px;max-width:210px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.inline-files img{width:150px;height:110px;object-fit:cover;border-radius:10px;display:block}.thinking{display:inline-flex;align-items:center;gap:9px;color:var(--muted);padding-top:7px}.thinking i{width:5px;height:5px;background:var(--blue);border-radius:50%;animation:blink 1.3s infinite}.thinking i:nth-child(2){animation-delay:.2s}.thinking i:nth-child(3){animation-delay:.4s}.demo-label{font-size:11px;color:var(--muted);margin-bottom:6px}.error-box{color:#f4a9a9}.scroll-bottom{position:absolute;bottom:155px;left:50%;z-index:14;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow)}
#popup{position:fixed;z-index:96;min-width:240px;max-width:calc(100vw - 24px);padding:7px;background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:auto;max-height:min(620px,75dvh)}.menu-item{display:flex;align-items:center;gap:12px;min-height:43px;width:100%;text-align:start;padding:9px 12px;border-radius:11px;font-size:13px}.menu-item .icon{width:20px;height:20px}.menu-item .desc{font-size:11px;color:var(--muted);display:block;margin-top:3px;line-height:1.5}.menu-item.selected{background:var(--hover)}.menu-item.danger{color:#f4a9a9}.menu-heading{padding:9px 12px 6px;font-size:11px;color:var(--muted)}.menu-divider{height:1px;background:var(--line);margin:6px 5px}
#scrim{display:none;position:fixed;inset:0;background:#0008;z-index:32}.modal-backdrop{position:fixed;inset:0;background:#0009;backdrop-filter:blur(3px);z-index:80;display:flex;justify-content:center;align-items:center;padding:20px}.modal{width:min(640px,100%);max-height:88dvh;overflow:auto;position:relative;background:var(--panel);border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);padding:26px}.modal.wide{width:min(920px,100%)}.modal-header{display:flex;align-items:center;gap:14px;margin-bottom:20px}.modal h2{font-size:23px;font-weight:400;margin:0}.modal h3{font-size:15px;font-weight:500;margin:23px 0 12px}.modal-header .ico{margin-inline-start:auto}.field{display:block;margin:17px 0}.field>span{display:block;margin-bottom:8px;font-size:13px}.field input,.field textarea,.field select,.search-input{display:block;width:100%;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--text);padding:12px 14px}.field textarea{resize:vertical;min-height:100px;line-height:1.7}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:58px;border-bottom:1px solid var(--line);padding:12px 0}.setting-row select{background:var(--bg);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:8px}.tabs{display:flex;gap:6px;overflow:auto;padding-bottom:14px;margin-bottom:4px}.tabs button{padding:9px 15px;border-radius:20px;white-space:nowrap;font-size:13px}.tabs button.active{background:var(--hover);color:var(--blue)}.empty-state{padding:45px 16px;text-align:center;color:var(--muted);line-height:1.8}.empty-state .icon{width:42px;height:42px;margin:0 auto 18px}.modal-list{display:flex;flex-direction:column;gap:5px}.list-card{padding:13px;border-radius:14px;display:flex;align-items:center;gap:14px;background:var(--bg)}.list-card>button:first-child{flex:1;text-align:start;padding:5px;min-width:0;overflow-wrap:anywhere}.list-card small{display:block;color:var(--muted);margin-top:5px;font-size:11px}.image-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.image-card{position:relative;border-radius:16px;overflow:hidden;background:var(--bg)}.image-card img{display:block;width:100%;height:160px;object-fit:cover}.image-card span{display:block;padding:8px;font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.callout{padding:13px 16px;border:1px solid var(--line);border-radius:14px;font-size:12px;color:var(--muted);line-height:1.9;background:var(--bg)}.switch{width:42px;height:25px;background:var(--line);border-radius:20px;position:relative;padding:3px;flex-shrink:0}.switch:after{content:'';position:absolute;top:4px;left:4px;width:17px;height:17px;background:var(--muted);border-radius:50%;transition:.2s}.switch.on{background:#4776c2}.switch.on:after{left:21px;background:white}.check-row{display:flex;gap:10px;align-items:center;margin:15px 0}.large-spark{width:60px;height:60px;margin:12px auto 18px;display:block}.voice-orb{width:120px;height:120px;border-radius:50%;margin:32px auto;background:radial-gradient(circle at 30% 30%,#99d2ff,#467ef5 55%,#c67acc);box-shadow:0 0 50px #6994f733}.voice-orb.listening{animation:orb 1.8s ease-in-out infinite}.voice-caption{text-align:center;font-size:15px;color:var(--muted);min-height:48px}.split-studio{display:grid;grid-template-columns:1fr 1fr;gap:15px}.studio-editor{width:100%;height:320px;resize:vertical;background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:14px;padding:13px;font-family:monospace;font-size:12px;direction:ltr;text-align:left}.studio-preview{width:100%;height:320px;border:1px solid var(--line);background:white;border-radius:14px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--text);color:var(--bg);padding:13px 21px;border-radius:13px;box-shadow:var(--shadow);z-index:120;max-width:min(540px,92vw);font-size:13px;line-height:1.7;animation:appear .2s}.drop-overlay{position:fixed;inset:12px;border:2px dashed var(--blue);border-radius:30px;background:var(--bg);opacity:.95;z-index:95;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px;font-size:24px}.lightbox-image{display:block;max-width:100%;max-height:65dvh;margin:auto;border-radius:14px}.mobile-only{display:none}.danger-text{color:#f4a9a9}html[dir=rtl]{font-family:'Vazirmatn','Inter',Arial,sans-serif}html[dir=rtl] .ico[title]:hover:after{transform:translateX(50%)}html[dir=rtl] #home h1{letter-spacing:0}html[dir=rtl] .bubble{font-family:'Vazirmatn','Inter',Arial,sans-serif}.policy-note{text-align:center;font-size:11px;color:var(--muted);line-height:1.8;margin-top:20px}
@keyframes blink{0%,70%,100%{opacity:.3}35%{opacity:1}}@keyframes appear{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes orb{50%{transform:scale(1.08);box-shadow:0 0 80px #6994f766}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media(min-width:1800px){#home h1{top:calc(33vh - 86px)}}
@media(max-width:760px){:root,body.expanded{--rail:0px}#sidebar{width:272px;transform:translateX(-100%);transition:transform .22s;background:var(--surface);padding-inline:12px}html[dir=rtl] #sidebar{transform:translateX(100%)}body.expanded #sidebar{transform:none}body.expanded #scrim{display:block}.nav-label,#sidebar .brand-label{display:block}#sidebar .recent{display:block}.mobile-only{display:inline-flex}.mobile-brand{display:block}.mobile-menu{margin-inline-end:2px}header{padding:10px 12px;gap:7px;height:64px;min-height:64px}.header-context{display:none}.header-app{display:none}header .primary{padding:9px 12px;font-size:12px}#home h1{top:calc(31vh - 64px);font-size:29px;letter-spacing:-.8px;padding:0 18px}#composer-wrap{top:calc(47% - 20px);width:calc(100% - 32px)}.composer{padding:10px;border-radius:28px}.compose-main{flex-wrap:wrap;gap:2px}#prompt{order:0;flex-basis:calc(100% - 12px);margin:0 7px 8px;min-height:36px;padding:6px 0;font-size:16px}.compose-plus{order:1}.model-button{order:2;min-width:0;margin-inline-start:auto;font-size:13px;padding:8px}.model-button .model-brand{display:none}#mic,#send{order:3}#voice-shortcut{order:4;display:inline-flex;width:36px;height:36px}.home-suggestions{top:calc(47vh + 48px);width:calc(100% - 48px)}.suggestion>button:first-child{font-size:13px;padding:12px;gap:12px}.suggestion .dismiss{display:none}.footer-note{font-size:9px;bottom:max(8px,env(safe-area-inset-bottom))}.chatting #composer-wrap{bottom:42px;width:calc(100% - 24px)}#messages{padding:18px 16px 230px}.message.assistant{grid-template-columns:24px minmax(0,1fr);gap:9px}.message.assistant .spark{width:22px;height:22px}.bubble{max-width:94%;padding:11px 17px}.message .meta-actions{opacity:1}.answer-actions{gap:0}.modal-backdrop{padding:10px;align-items:center}.modal{padding:20px;max-height:92dvh;border-radius:23px}.modal h2{font-size:21px}.image-grid{grid-template-columns:repeat(2,1fr)}.split-studio{grid-template-columns:1fr}.studio-editor,.studio-preview{height:230px}.recent-item .ico{opacity:1}.toast{bottom:20px}.setting-row{font-size:13px}.setting-row select{max-width:145px}.scroll-bottom{bottom:215px}}
@media(max-height:650px){#home h1{top:calc(24vh - 55px);font-size:28px}.home-suggestions{top:calc(50vh + 20px)}.suggestion{min-height:38px}.suggestion>button:first-child{padding-block:9px}#composer-wrap{top:calc(46% - 10px)}}
@media(max-height:650px) and (max-width:760px){#home h1{top:15px}.home-suggestions{top:calc(45vh + 70px)}#composer-wrap{top:calc(40% - 20px)}.suggestion{min-height:32px}}
@media print{#sidebar,header,#composer-wrap,.footer-note,.answer-actions,.meta-actions,#popup,.scroll-bottom{display:none!important}body,#main{overflow:visible;height:auto;background:white;color:black;margin:0}#messages{display:block;overflow:visible;padding:20px}.bubble{background:#eee;color:black}.message{break-inside:avoid}.message.assistant .spark{display:none}.message.assistant{display:block}}
/* UI polish */
html[dir=rtl] .message.user{align-items:flex-start}
svg.icon.icon-fill{fill:currentColor;stroke:none}
.list-card{justify-content:space-between;border:1px solid var(--line)}
.list-card:hover{background:var(--hover)}
.list-card>button[data-action=openchat]{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:3px;text-align:start;background:none;border:0;color:var(--text);font-size:14px;padding:0;overflow:hidden}
.list-card>button[data-action=openchat] small{color:var(--muted);font-size:11.5px;font-weight:400}
.list-card .ico{width:32px;height:32px;flex-shrink:0}
.search-wrap{position:relative;display:flex;align-items:center}
.search-wrap .icon{position:absolute;inset-inline-start:14px;width:19px;height:19px;color:var(--muted);pointer-events:none}
.search-wrap .search-input{padding-inline-start:44px;padding-block:13px;border-radius:14px;font-size:14.5px}