:root{--bg:#0b0f14;--panel:#12181f;--me:#2563eb;--ai:#1b2430;--text:#e7edf3;--muted:#8aa0b2;
  --inputbg:#0e141b;--border:#263241;--codebg:#0b1017;--isdark:1;}
@media (prefers-color-scheme: light){ :root:not([data-theme="dark"]){
  --bg:#f4f6f9;--panel:#ffffff;--ai:#e9edf3;--text:#0f1720;--muted:#5a6b7a;
  --inputbg:#eef2f7;--border:#d4dce5;--codebg:#eef2f7;--isdark:0; } }
:root[data-theme="light"]{
  --bg:#f4f6f9;--panel:#ffffff;--ai:#e9edf3;--text:#0f1720;--muted:#5a6b7a;
  --inputbg:#eef2f7;--border:#d4dce5;--codebg:#eef2f7;--isdark:0;}
:root[data-theme="dark"]{--bg:#0b0f14;--panel:#12181f;--ai:#1b2430;--text:#e7edf3;--muted:#8aa0b2;
  --inputbg:#0e141b;--border:#263241;--codebg:#0b1017;--isdark:1;}
*{box-sizing:border-box}
[hidden]{display:none !important}   /* atrybut hidden ma wygrywać z display:flex/grid */
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);
  font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  -webkit-text-size-adjust:100%;overscroll-behavior:none}
/* app-shell: kolumna na całą wysokość, przewija się tylko lista czatu */
body:not(.center){display:flex;flex-direction:column;height:100dvh;overflow:hidden}
.topbar,.usage,.thumbs,.imgactions,.controls,.composer{flex:0 0 auto}
.center{display:grid;place-items:center;min-height:100dvh;padding:24px}
.login{display:flex;flex-direction:column;gap:14px;width:min(360px,90vw);
  background:var(--panel);padding:26px;border-radius:18px;border:1px solid var(--border)}
.login h1{margin:0 0 6px;font-size:20px;text-align:center}
.login input{background:var(--inputbg);color:var(--text);border:1px solid var(--border);border-radius:12px;padding:12px 14px;font:inherit}
.login button{background:var(--me);color:#fff;border:none;border-radius:12px;padding:12px;font:inherit;font-weight:600}
.err{color:#ff8080;font-size:14px;margin:0;text-align:center}
.topbar{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;
  padding:calc(env(safe-area-inset-top) + 10px) 16px 10px;background:var(--panel);
  border-bottom:1px solid var(--border);z-index:5}
.title{font-weight:600}
.actions{display:flex;gap:8px}
.ghost{background:none;border:1px solid var(--border);color:var(--muted);border-radius:10px;padding:6px 10px;font:inherit}
.chat{padding:14px;display:flex;flex-direction:column;gap:10px;
  flex:1 1 auto;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:20px}
.msg{max-width:86%;padding:10px 13px;border-radius:16px;white-space:pre-wrap;word-wrap:break-word;overflow-wrap:anywhere}
.msg.me{align-self:flex-end;background:var(--me);border-bottom-right-radius:5px}
.msg.ai{align-self:flex-start;background:var(--ai);border-bottom-left-radius:5px}
.msg img{max-width:100%;border-radius:10px;margin-bottom:6px;display:block}
.thinking{align-self:flex-start;color:var(--muted);font-size:13px;font-style:italic}
.composer{position:sticky;bottom:0;display:flex;gap:8px;align-items:flex-end;padding:10px 12px
  calc(env(safe-area-inset-bottom) + 10px);background:var(--panel);border-top:1px solid var(--border)}
textarea{flex:1;resize:none;max-height:140px;background:var(--inputbg);color:var(--text);
  border:1px solid var(--border);border-radius:18px;padding:10px 14px;font:inherit}
.iconbtn{display:grid;place-items:center;min-width:44px;height:44px;border:none;border-radius:50%;
  background:var(--inputbg);color:var(--muted)}
.iconbtn.send{background:var(--me);color:#fff}
.thumbbar{position:fixed;bottom:132px;left:12px;display:flex;align-items:center;gap:6px;
  background:var(--panel);padding:6px;border-radius:12px;border:1px solid var(--border);z-index:6}
.thumbbar img{height:52px;border-radius:8px}
.thumbbar button{background:var(--inputbg);color:#fff;border:none;border-radius:50%;width:26px;height:26px}

/* szybkie akcje do zdjęć */
.imgactions{display:flex;gap:6px;overflow-x:auto;padding:6px 12px;background:var(--panel);
  border-top:1px solid var(--border);-webkit-overflow-scrolling:touch}
.imgactions button{white-space:nowrap;background:var(--inputbg);color:var(--text);border:1px solid var(--border);
  border-radius:14px;padding:6px 11px;font:inherit;font-size:14px}

/* pasek kontrolek: głębokość + tryb */
.controls{display:flex;gap:8px;align-items:center;padding:8px 12px;background:var(--panel);
  border-top:1px solid var(--border);overflow-x:auto}
.segmented{display:flex;background:var(--inputbg);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.segmented button{background:none;border:none;color:var(--muted);padding:7px 12px;font:inherit;font-size:14px;white-space:nowrap}
.segmented button.on{background:var(--me);color:#fff}
.controls select{background:var(--inputbg);color:var(--text);border:1px solid var(--border);border-radius:12px;
  padding:7px 10px;font:inherit;font-size:14px}

/* akcje pod wiadomością */
.msgactions{display:flex;gap:10px;margin-top:6px}
.msgactions button{background:none;border:none;color:var(--muted);font:inherit;font-size:13px;padding:2px 0}

.iconbtn.stop{background:#b03a3a;color:#fff}

/* pasek zużycia */
.usage{display:flex;gap:12px;align-items:center;overflow-x:auto;white-space:nowrap;
  padding:6px 12px;background:var(--inputbg);border-bottom:1px solid var(--border);font-size:12.5px;color:var(--muted)}
.usage .uitem{flex:0 0 auto}
.usage .uitem.warn{color:#e0b341}
.usage .uitem.danger{color:#ff6b6b;font-weight:600}

/* wskaźnik pracy */
.working{display:inline-flex;align-items:center;gap:2px;color:var(--muted);font-style:italic}
.working .wtime{font-variant-numeric:tabular-nums;opacity:.85}
.dots{display:inline-flex;gap:3px;margin:0 2px}
.dots i{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block;
  animation:blink 1.2s infinite ease-in-out}
.dots i:nth-child(2){animation-delay:.2s}
.dots i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-2px)}}
.thinking{animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:.55}50%{opacity:1}}

/* markdown */
.content h1,.content h2,.content h3,.content h4{margin:.5em 0 .3em;line-height:1.25}
.content h1{font-size:1.3em}.content h2{font-size:1.18em}.content h3{font-size:1.07em}.content h4{font-size:1em}
.content p{margin:.4em 0}
.content ul,.content ol{margin:.4em 0;padding-left:1.3em}
.content li{margin:.15em 0}
.content blockquote{margin:.5em 0;padding:.2em .8em;border-left:3px solid var(--border);color:var(--muted)}
.content a{color:#7cc0ff}
.content hr{border:none;border-top:1px solid var(--border);margin:.7em 0}
.content code{background:var(--codebg);border:1px solid var(--border);border-radius:5px;padding:1px 5px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.9em}
.codewrap{position:relative;margin:.5em 0}
.codewrap pre{background:var(--codebg);border:1px solid var(--border);border-radius:10px;padding:12px;overflow-x:auto;margin:0}
.codewrap pre code{background:none;border:none;padding:0;font-size:.86em;line-height:1.45}
.copycode{position:absolute;top:6px;right:6px;background:var(--ai);color:var(--muted);border:1px solid var(--border);
  border-radius:8px;padding:3px 8px;font:inherit;font-size:12px}

/* szuflada wątków */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:20}
.drawer{position:fixed;top:0;left:0;bottom:0;width:min(82vw,320px);background:var(--panel);
  border-right:1px solid var(--border);z-index:21;display:flex;flex-direction:column;
  padding:calc(env(safe-area-inset-top) + 12px) 12px calc(env(safe-area-inset-bottom) + 12px);
  box-shadow:2px 0 24px rgba(0,0,0,.35)}
.drawerhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-weight:600}
.threadlist{list-style:none;margin:0;padding:0;flex:1;overflow-y:auto}
.threaditem{display:flex;align-items:center;gap:2px;border-radius:10px;margin-bottom:4px}
.threaditem.active{background:var(--inputbg)}
.tname{flex:1;text-align:left;background:none;border:none;color:var(--text);font:inherit;padding:11px 10px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ticon{background:none;border:none;font-size:15px;padding:9px 6px}
.drawerlogout{margin-top:8px}
.icon{font-size:18px;line-height:1;padding:6px 10px}

/* miniatury (wiele) */
.thumbs{display:flex;gap:10px;overflow-x:auto;padding:10px 12px 4px;background:var(--panel);border-top:1px solid var(--border)}
.thumb{position:relative;flex:0 0 auto}
.thumb img{height:60px;border-radius:8px;display:block}
.thumb button{position:absolute;top:-6px;right:-6px;width:22px;height:22px;border-radius:50%;
  background:#b03a3a;color:#fff;border:2px solid var(--panel);font-size:13px;line-height:1;padding:0}

/* chipsy dopytaj */
.followups{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.followups button{background:var(--inputbg);border:1px solid var(--border);color:var(--text);
  border-radius:14px;padding:5px 11px;font:inherit;font-size:13px}
.tablewrap{overflow-x:auto;margin:.5em 0}
.content table{border-collapse:collapse;width:100%;font-size:.92em}
.content th,.content td{border:1px solid var(--border);padding:6px 9px;text-align:left}
.content th{background:var(--inputbg)}

/* szukanie w wątkach */
.threadsearch{width:100%;background:var(--inputbg);color:var(--text);border:1px solid var(--border);
  border-radius:10px;padding:8px 10px;font:inherit;margin-bottom:8px}

/* arkusz szablonów */
.sheetoverlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:30}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:31;background:var(--panel);
  border-top:1px solid var(--border);border-radius:16px 16px 0 0;max-height:72vh;overflow-y:auto;
  padding:14px 14px calc(env(safe-area-inset-bottom) + 16px);box-shadow:0 -6px 26px rgba(0,0,0,.35)}
.sheethead{font-weight:600;margin-bottom:6px;font-size:13.5px;color:var(--muted)}
.tplcat{margin:12px 0 4px;font-size:13px;color:var(--muted);font-weight:600}
.tplbtn{display:block;width:100%;text-align:left;background:var(--inputbg);border:1px solid var(--border);
  color:var(--text);border-radius:10px;padding:11px 12px;font:inherit;margin-bottom:6px}

/* baner offline */
.offlinebar{position:fixed;top:0;left:0;right:0;z-index:40;text-align:center;
  background:#b03a3a;color:#fff;font-size:13px;padding:6px calc(env(safe-area-inset-top))}

/* przycisk przewiń na dół */
.scrollbtn{position:fixed;right:14px;bottom:calc(env(safe-area-inset-bottom) + 120px);z-index:7;
  background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:20px;
  padding:7px 12px;font-size:14px;box-shadow:0 3px 12px rgba(0,0,0,.35)}
/* pusty wątek */
.empty{margin:auto;text-align:center;color:var(--muted);font-size:15px;max-width:280px;line-height:1.5}

/* akcje pod wiadomością — pozwól zawijać przy wielu przyciskach */
.msgactions{flex-wrap:wrap}

/* druk / PDF */
.printarea{display:none}
@media print{
  body:not(.center){display:block;height:auto;overflow:visible}
  body > *{display:none !important}
  .printarea{display:block !important;padding:0 4px}
  .printarea, .printarea *{color:#000 !important;background:#fff !important;box-shadow:none !important}
  .printarea h1{font-size:20px;margin:0 0 12px}
  .pmsg{margin:0 0 12px;page-break-inside:avoid}
  .pwho{font-weight:700;font-size:12px;color:#666 !important;margin-bottom:2px}
  .printarea table,.printarea th,.printarea td{border:1px solid #999 !important;border-collapse:collapse}
  .printarea pre{border:1px solid #ccc !important;white-space:pre-wrap}
  .scrollbtn,.offlinebar{display:none !important}
}

/* załączniki PDF + wygenerowane obrazy */
.filechip{display:inline-block;background:rgba(255,255,255,.16);border-radius:8px;padding:4px 8px;margin:0 0 6px;font-size:13px}
.pdfchip{display:flex;align-items:center;justify-content:center;height:60px;width:96px;background:var(--inputbg);
  border:1px solid var(--border);border-radius:8px;font-size:12px;padding:4px;text-align:center;overflow:hidden;word-break:break-word}
.genimg{max-width:100%;border-radius:10px;margin-top:8px;display:block}