:root{--navy:#0b1a4a;--navy2:#050d33;--bg:#f2f4fa;--line:#e1e5f0;--txt:#12183a;--mut:#6b7494}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font-family:Vazirmatn,Tahoma,system-ui,sans-serif;background:var(--bg);color:var(--txt)}
#root{height:100%}
button,input{font:inherit}
input{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;outline:none;color:var(--txt)}
input:focus{border-color:var(--navy)}
button{cursor:pointer;border:0}
.primary{background:var(--navy);color:#fff;border-radius:12px;padding:11px 18px}
.primary.sm{padding:9px 12px;white-space:nowrap}
.primary:disabled{opacity:.6}
.ghost{background:transparent;color:var(--navy);padding:6px 10px;border-radius:8px}
.link{background:none;color:var(--navy);padding:6px}
.err{color:#c62828;font-size:14px;margin:0}
.hint{color:var(--mut);text-align:center;padding:24px}
.logo{width:96px;height:96px;border-radius:22px}
.splash{height:100%;display:grid;place-items:center}
.msgbox{margin:40px 20px;padding:20px;background:#fff;border-radius:16px;line-height:2}

.auth{min-height:100%;display:grid;place-items:center;padding:20px;background:linear-gradient(160deg,var(--navy),var(--navy2))}
.card{background:#fff;border-radius:22px;padding:28px;width:100%;max-width:380px;display:flex;flex-direction:column;gap:12px;text-align:center}
.card .logo{align-self:center}
.card h1{margin:0 0 4px;color:var(--navy)}
.pw{display:flex;gap:6px;align-items:center}

.app{height:100dvh;display:flex}
.side{width:360px;background:#fff;border-inline-end:1px solid var(--line);display:flex;flex-direction:column}
.side-head{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--navy);color:#fff}
.side-head img{width:34px;height:34px;border-radius:9px}
.side-head strong{flex:1}
.side-head .ghost{color:#fff}
.side-body{flex:1;overflow:auto}
.toolbar{display:flex;gap:8px;padding:10px}
.chips{display:flex;gap:6px;padding:0 10px 8px}
.chips button{background:#eef0f8;border-radius:16px;padding:5px 12px;color:var(--mut)}
.chips button.on{background:var(--navy);color:#fff}
.list{list-style:none;margin:0;padding:0}
.list li{display:flex;align-items:center;gap:10px;padding:10px 14px;cursor:pointer;border-bottom:1px solid #f0f2f8}
.list li:hover,.list li.on{background:#eef1fb}
.list li input[type=checkbox]{width:auto}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;flex:none}
.meta{flex:1;min-width:0;display:flex;flex-direction:column}
.meta small,.list small{color:var(--mut)}
.nav{display:flex;border-top:1px solid var(--line);background:#fff;padding-bottom:env(safe-area-inset-bottom,0)}
.nav button{flex:1;padding:14px;background:none;color:var(--mut)}
.nav button.on{color:var(--navy);font-weight:700;box-shadow:inset 0 3px 0 var(--navy)}

.main{flex:1;min-width:0;display:flex}
.empty{margin:auto;text-align:center;color:var(--mut)}
.empty img{width:90px;border-radius:20px}
.chat{flex:1;display:flex;flex-direction:column;min-width:0}
.chat-head{display:flex;align-items:center;gap:10px;padding:10px 14px;background:#fff;border-bottom:1px solid var(--line)}
.back{display:none}
.msgs{flex:1;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:6px}
.bubble{max-width:75%;padding:8px 12px;border-radius:14px;display:flex;flex-direction:column;word-break:break-word;white-space:pre-wrap}
.bubble em{font-size:12px;color:#3a4a9a;font-style:normal;font-weight:700}
.bubble small{font-size:11px;opacity:.65;align-self:flex-end}
.bubble.mine{background:var(--navy);color:#fff;align-self:flex-start}
.bubble.theirs{background:#fff;border:1px solid var(--line);align-self:flex-end}
.composer{display:flex;gap:8px;padding:10px;background:#fff;border-top:1px solid var(--line);padding-bottom:calc(10px + env(safe-area-inset-bottom,0))}

.modal{position:fixed;inset:0;background:rgba(5,13,51,.55);display:grid;place-items:center;padding:16px;z-index:10}
.sheet{background:#fff;border-radius:18px;padding:18px;width:100%;max-width:420px;max-height:85dvh;display:flex;flex-direction:column;gap:10px}
.sheet h3{margin:0}
.sheet .pick{overflow:auto;flex:1;border:1px solid var(--line);border-radius:12px}
.row{display:flex;gap:8px;justify-content:flex-end}

@media(max-width:768px){
  .side{width:100%;border:0}
  .main{display:none}
  .app.in-chat .side{display:none}
  .app.in-chat .main{display:flex;width:100%}
  .back{display:inline-block}
  .bubble{max-width:85%}
}

.badge{display:inline-block;min-width:20px;padding:1px 6px;border-radius:10px;background:#e53935;color:#fff;font-size:12px;text-align:center;line-height:18px}
.end{display:flex;flex-direction:column;align-items:flex-end;gap:4px}
.prev{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}