:root{
  --navy:#002060; --navy-2:#0a2f7a; --red:#C00000;
  --bg:#ffffff; --side:#f5f7fb; --line:#e3e7ef; --text:#1b2333; --muted:#6b7487;
  --user:#eaf0fa; --hover:#e9eef7; --active:#dde6f5; --code:#f3f5f9;
  --font: "Inter", Arial, Helvetica, sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--text);font:15px/1.6 var(--font);-webkit-font-smoothing:antialiased}
.hidden{display:none!important}
button{font:inherit;cursor:pointer}
.muted{color:var(--muted)}

/* brend */
.brand{display:flex;align-items:center;gap:9px;font-weight:600;font-size:17px;color:var(--navy);letter-spacing:-.2px}
.brand b{color:var(--red);font-weight:700}
.brand .mark,.bot-ico{width:26px;height:26px;flex:none;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='7' fill='%23002060'/%3E%3Cpath d='M8 22l5-7 4 4 7-10' stroke='%23fff' stroke-width='3' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3Ccircle cx='24' cy='9' r='3' fill='%23C00000'/%3E%3C/svg%3E") center/contain no-repeat}
.brand.big{font-size:24px;justify-content:center}
.brand.big .mark{width:34px;height:34px}

/* tugmalar */
.btn{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:10px;padding:9px 14px;font-weight:500}
.btn:hover{background:var(--hover)}
.btn.primary{background:var(--navy);border-color:var(--navy);color:#fff;width:100%;padding:11px}
.btn.primary:hover{background:var(--navy-2)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--muted);padding:6px 10px}
.btn.ghost:hover{color:var(--red);background:#fff}
.icon-btn{border:0;background:transparent;border-radius:8px;width:36px;height:36px;font-size:18px;color:var(--navy);flex:none}
.icon-btn:hover{background:var(--hover)}

/* kirish */
.login{min-height:100%;display:flex;align-items:center;justify-content:center;padding:16px;
  background:radial-gradient(1200px 500px at 50% -10%,#e7eefb,transparent),#fff}
.login-card{width:100%;max-width:380px;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:32px 28px;box-shadow:0 10px 40px rgba(0,32,96,.08);display:flex;flex-direction:column;gap:14px}
.login-card p{text-align:center;margin:-6px 0 6px}
.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:500;color:var(--muted)}
.login-card input{font:inherit;font-size:15px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;outline:none;color:var(--text)}
.login-card input:focus{border-color:var(--navy);box-shadow:0 0 0 3px rgba(0,32,96,.1)}
.err{color:var(--red);font-size:13px;min-height:18px}

/* tuzilish */
.app{display:flex;height:100%;height:100dvh}
.side{width:272px;flex:none;background:var(--side);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:14px 12px}
.side-top{display:flex;align-items:center;justify-content:space-between;padding:4px 6px 14px}
.new-chat{width:100%;text-align:left;border-color:var(--line);color:var(--navy);font-weight:600}
.side-label{font-size:12px;color:var(--muted);margin:18px 8px 6px;text-transform:uppercase;letter-spacing:.6px}
.conv-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:2px}
.conv{display:flex;align-items:center;gap:6px;padding:8px 10px;border-radius:8px;color:var(--text);cursor:pointer;font-size:14px}
.conv:hover{background:var(--hover)}
.conv.active{background:var(--active);color:var(--navy);font-weight:500}
.conv span{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conv .del{opacity:0;border:0;background:none;color:var(--muted);font-size:14px;padding:0 4px}
.conv:hover .del{opacity:1}
.conv .del:hover{color:var(--red)}
.side-bottom{border-top:1px solid var(--line);padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.who{display:flex;align-items:center;gap:10px;min-width:0;flex:1}
.who > div{min-width:0}
.side-bottom .btn{flex:none}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;flex:none}
.u-name{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.u-role{font-size:12px;color:var(--muted)}

.main{flex:1;display:flex;flex-direction:column;min-width:0;position:relative}
.topbar{height:52px;display:flex;align-items:center;gap:8px;padding:0 18px;border-bottom:1px solid var(--line);flex:none}
.conv-title{font-weight:600;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.scroll{flex:1;overflow-y:auto}
.msgs{max-width:820px;margin:0 auto;padding:24px 20px 8px;display:flex;flex-direction:column;gap:22px}
.empty{max-width:640px;margin:12vh auto 0;text-align:center;padding:0 20px}
.empty h1{font-size:26px;color:var(--navy);margin:22px 0 8px;font-weight:600;letter-spacing:-.4px}

/* xabarlar */
.msg{display:flex;flex-direction:column}
.msg.user{align-items:flex-end}
.msg.user .bubble{background:var(--user);border-radius:18px 18px 4px 18px;padding:10px 16px;max-width:85%;white-space:pre-wrap;word-wrap:break-word}
.msg.bot{flex-direction:row;gap:12px;align-items:flex-start}
.msg.bot .bot-ico{width:30px;height:30px;margin-top:2px}
.bot-body{flex:1;min-width:0}
.chips-in{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end;margin-bottom:6px}

.md{overflow-wrap:anywhere}
.md > :first-child{margin-top:0}
.md > :last-child{margin-bottom:0}
.md p{margin:0 0 12px}
.md h1,.md h2,.md h3,.md h4{color:var(--navy);line-height:1.3;margin:18px 0 8px}
.md h1{font-size:21px}.md h2{font-size:18px}.md h3{font-size:16px}
.md strong{font-weight:600}
.md a{color:var(--navy)}
.md ul,.md ol{padding-left:22px;margin:0 0 12px}
.md li{margin:3px 0}
.md code{background:var(--code);border-radius:5px;padding:1px 5px;font:13px/1.5 Consolas,"Courier New",monospace}
.md pre{background:var(--code);border:1px solid var(--line);border-radius:10px;padding:12px 14px;overflow-x:auto}
.md pre code{background:none;padding:0}
.md blockquote{border-left:3px solid var(--red);margin:0 0 12px;padding:2px 14px;color:var(--muted)}
.md .tbl{overflow-x:auto;margin:0 0 14px;border:1px solid var(--line);border-radius:10px}
.md table{border-collapse:collapse;width:100%;font-size:14px}
.md th{background:#eef2f9;color:var(--navy);font-weight:600;text-align:left}
.md th,.md td{padding:7px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
.md tr:last-child td{border-bottom:0}
.md td:not(:first-child){font-variant-numeric:tabular-nums}

.status{display:flex;align-items:center;gap:10px;color:var(--navy);font-size:14px;margin-top:6px}
.dots{display:inline-flex;gap:4px}
.dots i{width:6px;height:6px;border-radius:50%;background:var(--red);animation:b 1.2s infinite ease-in-out}
.dots i:nth-child(2){animation-delay:.15s;background:var(--navy)}
.dots i:nth-child(3){animation-delay:.3s}
@keyframes b{0%,80%,100%{transform:scale(.5);opacity:.4}40%{transform:scale(1);opacity:1}}
.cursor::after{content:"▍";color:var(--red);animation:blink 1s steps(2) infinite;margin-left:1px}
@keyframes blink{50%{opacity:0}}

/* fayl kartochkalari */
.cards{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.card{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:12px;padding:10px 14px 10px 10px;
  text-decoration:none;color:var(--text);background:#fff;min-width:240px;max-width:100%;transition:.15s}
.card:hover{border-color:var(--navy);box-shadow:0 4px 14px rgba(0,32,96,.08)}
.ficon{width:38px;height:38px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px;flex:none}
.ficon.docx{background:#2b579a}.ficon.xlsx{background:#217346}.ficon.pdf{background:var(--red)}.ficon.other{background:#6b7487}
.card .fn{font-weight:500;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:320px}
.card .fs{font-size:12px;color:var(--muted)}
.card .dl{margin-left:auto;color:var(--navy);font-size:13px;font-weight:600;padding-left:8px}

/* yozish maydoni */
.composer-wrap{padding:8px 20px 12px;flex:none}
.composer{max-width:820px;margin:0 auto;border:1px solid #cfd6e4;border-radius:18px;background:#fff;padding:8px 8px 8px 8px;
  box-shadow:0 4px 18px rgba(0,32,96,.06)}
.composer:focus-within{border-color:var(--navy)}
.composer .row{display:flex;align-items:flex-end;gap:6px}
.composer textarea{flex:1;border:0;outline:none;resize:none;font:inherit;font-size:15px;line-height:1.5;padding:8px 4px;max-height:220px;min-height:40px;color:var(--text);background:transparent}
.clip{font-size:19px;margin-bottom:2px}
.send{width:38px;height:38px;border-radius:12px;border:0;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;flex:none;margin-bottom:1px}
.send:hover{background:var(--red)}
.send:disabled{background:#b9c2d3;cursor:not-allowed}
.chips{display:flex;flex-wrap:wrap;gap:6px;padding:2px 2px 6px}
.chips:empty{display:none}
.chip{display:inline-flex;align-items:center;gap:7px;background:var(--side);border:1px solid var(--line);border-radius:10px;padding:5px 8px 5px 6px;font-size:13px;max-width:100%}
.chip .ficon{width:24px;height:24px;font-size:9px;border-radius:6px}
.chip .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:220px}
.chip .x{border:0;background:none;color:var(--muted);padding:0 2px;font-size:14px}
.chip .x:hover{color:var(--red)}
.chip.up{opacity:.6}
.foot{text-align:center;font-size:12px;margin-top:8px}

.drop{position:absolute;inset:0;background:rgba(0,32,96,.08);border:3px dashed var(--navy);border-radius:16px;margin:10px;
  display:flex;align-items:center;justify-content:center;text-align:center;color:var(--navy);font-weight:600;font-size:20px;z-index:20;pointer-events:none}

.scrim{display:none}
.only-mobile{display:none}

/* telefon */
@media (max-width: 820px){
  .only-mobile{display:inline-flex;align-items:center;justify-content:center}
  .side{position:fixed;inset:0 auto 0 0;z-index:40;transform:translateX(-100%);transition:transform .22s ease;box-shadow:0 0 40px rgba(0,0,0,.2);width:84%;max-width:300px}
  .side.open{transform:none}
  .scrim{display:block;position:fixed;inset:0;background:rgba(10,20,40,.35);z-index:30;opacity:0;pointer-events:none;transition:.2s}
  .scrim.on{opacity:1;pointer-events:auto}
  .topbar{padding:0 10px}
  .msgs{padding:16px 16px 6px}
  .composer-wrap{padding:6px 10px calc(10px + env(safe-area-inset-bottom))}
  .msg.user .bubble{max-width:92%}
  .bot-ico{display:none}
  .empty{margin-top:8vh}
  .empty h1{font-size:21px}
  .card{min-width:0;width:100%}
  .conv .del{opacity:1}
}