:root{
  --bg:#f7f7f8; --panel:#ffffff; --ink:#16181d; --muted:#6b7280; --line:#e5e7eb; --accent:#2f5bea; --accent-ink:#fff; --accent-soft:#e9eefe;
  --user:#2f5bea; --user-ink:#fff; --bot:#ffffff; --danger:#d23b3b; --ok:#13865a; --warn:#b26b00;
  --radius:14px; --shadow:0 1px 2px rgba(0,0,0,.05),0 4px 16px rgba(0,0,0,.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans Hebrew", "Arial Hebrew", Arial, sans-serif;
  --nav-h: 60px; --top-h: 56px;
}
@media (prefers-color-scheme: dark){:root{--bg:#0f1115;--panel:#171a21;--ink:#eceef2;--muted:#9aa3b2;--line:#272b35;--accent:#6d8cff;--accent-soft:#1f2740;--bot:#171a21;--user:#3d63e0;--shadow:none}}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;-webkit-text-size-adjust:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--accent)}
:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 60%,transparent);outline-offset:2px;border-radius:8px}
.hidden{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:.55em .9em;min-height:40px;font-weight:500;white-space:nowrap}
.btn:hover{border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.danger{color:var(--danger)}
.btn.small{min-height:32px;padding:.3em .65em;font-size:.88rem}
.btn:disabled{opacity:.5;cursor:default}
.icon-btn{border:0;background:transparent;width:42px;height:42px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:var(--ink)}
.icon-btn:hover{background:var(--accent-soft)}
.icon-btn svg,.btn svg{width:22px;height:22px}
input[type=text],input[type=password],input[type=search],input[type=url],select,textarea{width:100%;border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:.65em .8em;min-height:44px}
.badge{display:inline-block;font-size:.72rem;font-weight:600;border-radius:999px;padding:.15em .6em;background:var(--accent-soft);color:var(--accent)}
.badge.free{background:#e3f6ec;color:var(--ok)} .badge.paid{background:#fdf0dc;color:var(--warn)}
@media (prefers-color-scheme: dark){.badge.free{background:#14302a}.badge.paid{background:#3a2c14}}

/* login */
#login{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}
.login-card{width:100%;max-width:360px;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:28px 22px;box-shadow:var(--shadow);text-align:center}
.logo{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,#2f5bea,#7a4dff);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.4rem;margin-bottom:10px}
.login-card h1{font-size:1.35rem;margin:.2em 0 .1em}
.login-card p{color:var(--muted);margin:0 0 18px}
.login-card form{display:grid;gap:10px}
.form-msg{min-height:1.3em;color:var(--danger);font-size:.9rem}

/* app shell */
#app{height:100%;display:flex}
.rail{display:none}
.main{flex:1;min-width:0;display:flex;flex-direction:column;height:100%}
.topbar{height:var(--top-h);display:flex;align-items:center;gap:6px;padding:0 8px;border-bottom:1px solid var(--line);background:var(--panel);flex:none}
.topbar .title{flex:1;min-width:0;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.model-btn{border:1px solid var(--line);background:var(--bg);border-radius:999px;padding:.35em .75em;max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.86rem;min-height:36px}
.usage-pill{font-size:.75rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:.25em .55em;white-space:nowrap}
.usage-pill.high{color:var(--warn);border-color:var(--warn)}
.view{flex:1;min-height:0;overflow:auto;-webkit-overflow-scrolling:touch}
.bottomnav{height:var(--nav-h);flex:none;display:flex;border-top:1px solid var(--line);background:var(--panel);padding-bottom:env(safe-area-inset-bottom)}
.bottomnav button{flex:1;border:0;background:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:.72rem;color:var(--muted)}
.bottomnav button svg{width:22px;height:22px}
.bottomnav button[aria-current=page]{color:var(--accent);font-weight:600}

/* chat */
#view-chat{display:flex;flex-direction:column}
.messages{flex:1;overflow:auto;padding:14px 12px 8px;display:flex;flex-direction:column;gap:12px}
.msg{max-width:92%;line-height:1.5;word-wrap:break-word;overflow-wrap:anywhere}
.msg.user{align-self:flex-end;background:var(--user);color:var(--user-ink);padding:.6em .9em;border-radius:18px 18px 4px 18px;white-space:pre-wrap}
.msg.assistant{align-self:stretch;max-width:100%;background:var(--bot);border:1px solid var(--line);border-radius:16px;padding:.7em .95em}
.msg.assistant.error{border-color:var(--danger)}
.msg .meta{font-size:.72rem;color:var(--muted);margin-top:.4em;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.msg.user .meta{color:rgba(255,255,255,.8)}
.md p{margin:.45em 0} .md :first-child{margin-top:0} .md :last-child{margin-bottom:0}
.md pre{background:color-mix(in srgb,var(--ink) 7%,transparent);padding:.7em;border-radius:10px;overflow:auto;direction:ltr;text-align:left}
.md code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88em}
.md table{border-collapse:collapse;display:block;overflow:auto;max-width:100%}
.md td,.md th{border:1px solid var(--line);padding:.35em .55em}
.md [dir=rtl]{text-align:right}
.md ul[dir=rtl],.md ol[dir=rtl]{padding-right:1.4em;padding-left:0}
.cursor::after{content:"▍";animation:blink 1s steps(2) infinite;opacity:.6}
@keyframes blink{50%{opacity:0}}
.file-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:10px;padding:.35em .55em;font-size:.85rem;max-width:100%}
.chip .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:200px}
.chip .st{color:var(--muted);font-size:.75rem}
.chip.err{border-color:var(--danger)}
.chip button{border:0;background:none;padding:0 2px;color:var(--muted);font-size:1rem;line-height:1}
.empty{margin:auto;text-align:center;color:var(--muted);padding:20px;max-width:520px}
.empty h2{color:var(--ink);margin:.3em 0}
.suggest{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:16px}
.suggest button{border:1px solid var(--line);background:var(--panel);border-radius:12px;padding:.8em;text-align:left;font-size:.9rem;min-height:56px}
.composer{flex:none;border-top:1px solid var(--line);background:var(--panel);padding:8px 8px 10px}
.quick{display:flex;gap:6px;overflow-x:auto;padding:0 2px 8px}
.quick:empty{display:none}
.att-row:empty{display:none}
.att-row{display:flex;gap:6px;flex-wrap:wrap;padding:0 2px 8px}
.input-row{display:flex;align-items:flex-end;gap:6px}
.input-row textarea{resize:none;max-height:180px;min-height:44px;border-radius:22px;padding:.6em 1em;line-height:1.35}
.send{background:var(--accent);color:#fff;border-radius:50%}
.send:hover{background:var(--accent)}
.rec{color:var(--danger)}
.recording-bar{display:flex;align-items:center;gap:10px;padding:6px 4px 8px;color:var(--danger);font-weight:600}
.dot{width:10px;height:10px;border-radius:50%;background:var(--danger);animation:blink 1s infinite}
.result-card{border:1px solid var(--line);border-radius:12px;padding:.7em;margin-top:.5em;background:var(--bg)}
.result-card .row{display:flex;gap:6px;flex-wrap:wrap;margin-top:.5em}
.transcript{white-space:pre-wrap;max-height:260px;overflow:auto;font-size:.95rem;unicode-bidi:plaintext}

/* drawer (chat history) */
.drawer-back{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:40}
.drawer{position:fixed;top:0;bottom:0;left:0;width:min(86vw,320px);background:var(--panel);z-index:41;display:flex;flex-direction:column;box-shadow:var(--shadow);transform:translateX(-100%);transition:transform .2s}
.drawer.open{transform:none}
.drawer header{display:flex;align-items:center;gap:8px;padding:10px;border-bottom:1px solid var(--line)}
.conv-list{flex:1;overflow:auto;padding:6px}
.conv{display:flex;align-items:center;gap:4px;border-radius:10px}
.conv a{flex:1;min-width:0;display:block;padding:.65em .7em;color:var(--ink);text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;unicode-bidi:plaintext}
.conv.active{background:var(--accent-soft)}
.conv:hover{background:var(--accent-soft)}

/* sheets / modals */
.modal-back{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:50;display:flex;align-items:flex-end;justify-content:center}
.sheet{background:var(--panel);width:100%;max-width:640px;max-height:88vh;border-radius:18px 18px 0 0;display:flex;flex-direction:column;padding-bottom:env(safe-area-inset-bottom)}
.sheet header{display:flex;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--line)}
.sheet header h3{flex:1;margin:0;font-size:1.05rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sheet .body{padding:14px;overflow:auto}
.sheet .actions{display:flex;flex-wrap:wrap;gap:8px;padding:12px 14px;border-top:1px solid var(--line)}
.menu-list{display:grid;gap:4px}
.menu-list button{display:flex;align-items:center;gap:12px;border:0;background:none;text-align:left;padding:.8em .6em;border-radius:10px;font-size:1rem}
.menu-list button:hover{background:var(--accent-soft)}
.menu-list svg{width:22px;height:22px;color:var(--accent)}
@media (min-width:700px){.modal-back{align-items:center}.sheet{border-radius:18px}}

/* model picker */
.model-group h4{margin:12px 0 4px;font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.model-opt{display:flex;width:100%;align-items:center;gap:8px;border:1px solid transparent;background:none;border-radius:10px;padding:.6em .6em;text-align:left}
.model-opt:hover{background:var(--accent-soft)}
.model-opt[aria-selected=true]{border-color:var(--accent);background:var(--accent-soft)}
.model-opt .lbl{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}

/* files */
.files-wrap{padding:12px;max-width:1000px;margin:0 auto}
.files-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.files-tools input[type=search]{flex:1;min-width:150px}
.crumbs{display:flex;gap:4px;align-items:center;flex-wrap:wrap;margin:10px 0 6px;font-size:.92rem}
.crumbs button{border:0;background:none;color:var(--accent);padding:.2em .3em}
.storage{font-size:.8rem;color:var(--muted);margin:6px 0 10px}
.bar{height:6px;background:var(--line);border-radius:6px;overflow:hidden;margin-top:4px}
.bar>i{display:block;height:100%;background:var(--accent)}
.flist{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden}
.fitem{display:flex;align-items:center;gap:10px;padding:.65em .7em;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;width:100%}
.fitem:last-child{border-bottom:0}
.fitem:hover{background:var(--accent-soft)}
.ficon{width:38px;height:38px;flex:none;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:.66rem;font-weight:800;color:#fff;background:#8a94a6;letter-spacing:.02em}
.ficon.pdf{background:#d93f3f}.ficon.doc{background:#2b5fd9}.ficon.img{background:#14a37f}.ficon.aud{background:#9b51e0}.ficon.txt{background:#5f6b7d}.ficon.folder{background:#f0b429;color:#5b4300}.ficon.xls{background:#1e8a4c}.ficon.vid{background:#e0762b}
.finfo{flex:1;min-width:0}
.fname{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;unicode-bidi:plaintext}
.fsub{font-size:.78rem;color:var(--muted)}
.fgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}
.fgrid .fitem{flex-direction:column;border:1px solid var(--line);border-radius:12px;text-align:center;padding:.9em .5em}
.fgrid .finfo{width:100%}
.fgrid .ficon{width:54px;height:54px}
.dropzone{border:2px dashed var(--line);border-radius:14px;padding:18px;text-align:center;color:var(--muted);margin-top:12px}
.dropzone.over{border-color:var(--accent);background:var(--accent-soft)}
.preview{border:1px solid var(--line);border-radius:12px;overflow:auto;max-height:52vh;background:var(--bg)}
.preview img{max-width:100%;display:block;margin:auto}
.preview canvas{max-width:100%;display:block;margin:0 auto 8px;background:#fff}
.preview .docx{padding:14px;background:#fff;color:#111}
.preview audio{width:100%;margin:12px 0}
.preview pre{white-space:pre-wrap;padding:12px;margin:0;unicode-bidi:plaintext;font-family:inherit}

/* tools */
.tools-wrap{padding:12px;max-width:900px;margin:0 auto}
.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tool{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:14px;text-align:left;display:flex;flex-direction:column;gap:6px;min-height:110px}
.tool b{font-size:1rem}
.tool span{color:var(--muted);font-size:.85rem}
.tool .ti{width:34px;height:34px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}
.progress{margin-top:12px}
.progress .bar{height:8px}

/* settings */
.settings-wrap{padding:12px;max-width:760px;margin:0 auto;display:grid;gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px}
.card h3{margin:0 0 6px;font-size:1.05rem}
.card p{margin:.3em 0;color:var(--muted);font-size:.9rem}
.prov{border-top:1px solid var(--line);padding:12px 0}
.prov:first-of-type{border-top:0}
.prov-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.prov-head b{flex:1}
.prov-row{display:flex;gap:6px;margin-top:8px}
.prov-row input{flex:1}
.ok{color:var(--ok)} .bad{color:var(--danger)}
.toast{position:fixed;left:50%;bottom:calc(var(--nav-h) + 16px);transform:translateX(-50%);background:#16181d;color:#fff;padding:.6em 1em;border-radius:12px;z-index:60;max-width:90vw;font-size:.92rem;box-shadow:var(--shadow)}

/* desktop */
@media (min-width:900px){
  .bottomnav{display:none}
  .rail{display:flex;flex-direction:column;width:270px;flex:none;border-right:1px solid var(--line);background:var(--panel)}
  .rail .brand{display:flex;align-items:center;gap:10px;padding:12px;font-weight:700}
  .rail .brand .logo{width:34px;height:34px;font-size:.9rem;border-radius:10px;margin:0}
  .rail nav{display:grid;gap:2px;padding:0 8px 8px;border-bottom:1px solid var(--line)}
  .rail nav button{display:flex;gap:10px;align-items:center;border:0;background:none;padding:.6em .7em;border-radius:10px;text-align:left;color:var(--ink)}
  .rail nav button svg{width:20px;height:20px}
  .rail nav button[aria-current=page]{background:var(--accent-soft);color:var(--accent);font-weight:600}
  .rail .conv-list{flex:1}
  #menuBtn{display:none}
  .msg{max-width:78%}
  .messages{padding:20px 24px}
  .messages > *{width:100%;max-width:820px;margin-left:auto;margin-right:auto}
  .messages > .msg.user{width:auto;margin-right:max(0px,calc((100% - 820px)/2))}
  .composer{padding:10px 24px 14px}
  .composer > *{max-width:820px;margin-left:auto;margin-right:auto}
  .tool-grid{grid-template-columns:repeat(3,1fr)}
}

#printArea{display:none}
@media print{
  body.printing > *:not(#printArea){display:none!important}
  body.printing #printArea{display:block;color:#000;background:#fff;font-family:Arial,"Noto Sans Hebrew",sans-serif;font-size:12pt;line-height:1.45}
  body.printing #printArea [dir=rtl]{text-align:right}
  body.printing{background:#fff}
  @page{margin:18mm}
}