:root{--side:#171717;--bg:#212121;--box:#2f2f2f;--ink:#ececec;--dim:#9b9b9b;--line:#424242;--acc:#10a37f;--hover:#2a2a2a;--inp:#212121}
[data-theme=light]{--side:#f9f9f9;--bg:#fff;--box:#f4f4f4;--ink:#1a1a1a;--dim:#6b6b6b;--line:#d9d9d9;--hover:#ececec;--inp:#fff}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;display:flex;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}
aside{width:260px;flex:none;background:var(--side);padding:12px;display:flex;flex-direction:column;gap:4px}
aside b{font-size:18px;padding:10px 12px 14px}
aside a{padding:10px 12px;border-radius:10px;color:var(--ink);text-decoration:none}
aside a:hover,aside a.on{background:var(--hover)}
.main{flex:1;display:flex;flex-direction:column;min-width:0;height:100%}
#chat{flex:1;overflow:auto;padding:28px 16px}
#hello{max-width:760px;margin:12vh auto 0;text-align:center}
#hello h1{font-size:30px;margin:0 0 8px}#hello p{color:var(--dim)}
.cards{display:grid;gap:12px;margin-top:28px;text-align:left}
.card{display:block;border:1px solid var(--line);border-radius:14px;padding:14px 16px;color:var(--ink);text-decoration:none}
.card:hover{background:var(--box)}.card span{color:var(--dim);font-size:14px}
.msg{max-width:760px;margin:0 auto 22px}
.me>div{background:var(--box);border-radius:18px;padding:10px 16px;margin-left:auto;width:fit-content;max-width:85%}
.ai .body{white-space:pre-wrap;line-height:1.75}
.copy{margin-top:8px;background:none;border:1px solid var(--line);color:var(--dim);border-radius:8px;padding:2px 10px;cursor:pointer;font-size:13px}
#composer{width:100%;max-width:792px;margin:0 auto;padding:0 16px 20px}
#status{color:var(--dim);font-size:14px;min-height:1.4em;padding:0 8px 4px}
.box{background:var(--box);border-radius:24px;padding:12px 16px}
.ctl{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:8px}
.box input,.box select,.box textarea{background:var(--inp);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:8px 10px;font:inherit;font-size:15px}
.box textarea{width:100%;resize:none;margin-bottom:8px}
.box input[type=number]{width:80px}.box input.w{flex:1;min-width:160px}
.file{border:1px dashed var(--dim);border-radius:10px;padding:7px 12px;cursor:pointer;font-size:15px}
.file input{display:none}
.hide{display:none!important}
#go{background:var(--ink);color:var(--bg);border:0;border-radius:20px;padding:8px 22px;font-weight:700;cursor:pointer;margin-left:auto}
#go:disabled{opacity:.4;cursor:wait}
.send{display:flex}
details summary{cursor:pointer;color:var(--dim);margin-bottom:8px}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
@media(max-width:760px){body{flex-direction:column}aside{width:100%;flex-direction:row;overflow-x:auto;padding:6px}aside b{display:none}aside a{white-space:nowrap}}
#sbtn{margin-top:auto;background:none;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:9px 12px;cursor:pointer;font:inherit;text-align:left}#sbtn:hover{background:var(--hover)}
@media(max-width:760px){#sbtn{margin:0 0 0 auto;white-space:nowrap}}
#model{background:var(--inp);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:9px 8px;font:inherit;font-size:14px;max-width:100%;margin-top:auto}#model+#sbtn{margin-top:6px}
#sbtn{margin-top:auto}
@media(max-width:760px){#model{margin:0 0 0 auto;max-width:160px}#model+#sbtn{margin:0 0 0 6px}}
#sidebody{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:3px}
.top{display:flex;align-items:center;gap:8px;padding:4px 2px 10px}
aside .top b{padding:0;flex:1;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.arrow{flex:none;width:34px;height:34px;background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;cursor:pointer;font-size:16px}
.arrow:hover{background:var(--hover)}
.newchat{text-align:left;background:none;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:9px 12px;cursor:pointer;font:inherit;margin-bottom:8px}
.newchat:hover{background:var(--hover)}
.empty{color:var(--dim);font-size:14px;padding:8px 12px}
.h{display:flex;align-items:center;border-radius:10px;padding:0 4px 0 12px;cursor:pointer}
.h:hover,.h.on{background:var(--hover)}
.h .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:9px 0;font-size:15px}
.del{display:none;flex:none;background:none;border:0;color:var(--dim);cursor:pointer;font-size:15px;padding:6px;border-radius:6px}
.h:hover .del{display:inline-block}.del:hover{color:#e5484d;background:var(--bg)}
@media(hover:none){.del{display:inline-block}}
@media(max-width:760px){#sidebody{flex-direction:row;align-items:center;overflow-x:auto;overflow-y:hidden}.top{padding:0 6px 0 0}.newchat{margin:0;white-space:nowrap}.h{max-width:170px;flex:none}.empty{white-space:nowrap}aside .top b{display:block;flex:none}}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}
.dialog{position:relative;display:flex;width:min(680px,100%);min-height:380px;max-height:90vh;background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.tabs{width:190px;flex:none;background:var(--side);padding:16px 10px;display:flex;flex-direction:column;gap:4px}
.tabs button{text-align:left;background:none;border:0;color:var(--ink);padding:10px 12px;border-radius:10px;cursor:pointer;font:inherit}
.tabs button:hover,.tabs button.on{background:var(--hover)}
.pane{flex:1;padding:24px;overflow:auto}.pane h2{margin:0 0 4px;font-size:20px}
.dim{color:var(--dim);font-size:14px}
.pane textarea{width:100%;margin-top:12px;background:var(--inp);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:10px;font:inherit;resize:vertical}
.seg{display:inline-flex;margin-top:14px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.seg button{background:none;border:0;color:var(--ink);padding:10px 16px;cursor:pointer;font:inherit}
.seg button.on{background:var(--ink);color:var(--bg);font-weight:700}
.x{position:absolute;top:10px;right:12px;background:none;border:0;color:var(--dim);font-size:18px;cursor:pointer}
@media(max-width:600px){.dialog{flex-direction:column}.tabs{width:100%;flex-direction:row;padding:10px}.pane{padding:16px}}
.bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:10px 16px;border-bottom:1px solid var(--line);flex:none}
.bar #up{display:contents}.bar #status{flex-basis:100%;padding:0}
.board{flex:1;overflow:auto;padding:16px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:1000px;margin:0 auto}
.sec{background:var(--box);border-radius:16px;padding:16px;min-width:0}.span2{grid-column:1/-1}
.sec h3{margin:0 0 10px;font-size:17px}
.sec .out{white-space:pre-wrap;line-height:1.7;margin-top:12px}.sec .out:empty{display:none}
.sec .foot{margin-top:8px;font-size:13px;color:var(--dim)}.sec .foot button{margin-right:10px}
.sec input,.sec textarea,.bar input{background:var(--inp);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:8px 10px;font:inherit;font-size:15px}
.sec textarea{width:100%;resize:vertical}.sec input.w{flex:1;min-width:140px}
.sec input[type=number],.bar input[type=number]{width:80px}
.gen,#all{background:var(--ink);color:var(--bg);border:0;border-radius:20px;padding:8px 20px;font:inherit;font-weight:700;cursor:pointer;margin-left:auto}
#all{margin-left:auto}.gen:disabled,#all:disabled{opacity:.4;cursor:wait}
@media(max-width:760px){.grid{grid-template-columns:1fr}.span2{grid-column:auto}}