/* الألوان والأبعاد مأخوذة من مثال Gemini في assistant-ui */
:root{--bg:#fdfcfc;--fg:#1f1f1f;--surface:#fff;--bubble:#f2f0f0;--icon:#444746;--hover:#4447461f;--mut:#5e6063;--ph:#575b5f;--send:#1f3b9b;--send-h:#274aad;--send-off:#e8eaed;--send-off-fg:#1f1f1f66;--line:#dadce0;--thumb:#f1f3f4;--acc:#0b57d0;--glow:#a9d1fb99;--side:#f6f4f4;--code:#f0f4f9;--danger:#c5221f;--shadow:0 1px 2px #0000000f,0 0 0 1px #0000000a;--pop:0 8px 28px #00000026;color-scheme:light}
:root[data-theme=dark]{--bg:#0c0c0c;--fg:#e3e3e3;--surface:#1e1f20;--bubble:#333537;--icon:#c4c7c5;--hover:#c4c7c51a;--mut:#9aa0a6;--ph:#9aa0a6;--send-off:#2b2c2e;--send-off-fg:#ffffff4d;--line:#3c4043;--thumb:#282a2c;--acc:#a8c7fa;--glow:#1b2f9c80;--side:#131314;--code:#161718;--danger:#f28b82;--shadow:0 0 0 1px #ffffff0f;--pop:0 8px 28px #000000aa;color-scheme:dark}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0c0c0c;--fg:#e3e3e3;--surface:#1e1f20;--bubble:#333537;--icon:#c4c7c5;--hover:#c4c7c51a;--mut:#9aa0a6;--ph:#9aa0a6;--send-off:#2b2c2e;--send-off-fg:#ffffff4d;--line:#3c4043;--thumb:#282a2c;--acc:#a8c7fa;--glow:#1b2f9c80;--side:#131314;--code:#161718;--danger:#f28b82;--shadow:0 0 0 1px #ffffff0f;--pop:0 8px 28px #000000aa;color-scheme:dark}}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--fg);font:16px/1.7 system-ui,-apple-system,"Segoe UI","Noto Sans Arabic",Tahoma,sans-serif;-webkit-text-size-adjust:100%;overflow:hidden}
#root{height:100dvh}
button,input,textarea{font:inherit;color:inherit}button{cursor:pointer;border:0;background:none;padding:0}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
svg.i{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.ib{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;color:var(--icon);transition:background .15s,color .15s;flex-shrink:0}
.ib:hover{background:var(--hover);color:var(--fg)}.ib.sm{width:32px;height:32px}.ib.sm svg.i{width:16px;height:16px}
.mark{width:28px;height:28px;color:var(--send);flex-shrink:0}:root[data-theme=dark] .mark{color:var(--acc)}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .mark{color:var(--acc)}}
.brand{font-size:20px;font-weight:500;letter-spacing:.2px}

/* ---- layout ---- */
.app{display:flex;height:100%;overflow:hidden;position:relative}
.side{width:272px;background:var(--side);border-inline-end:1px solid var(--line);display:flex;flex-direction:column;padding:8px;gap:4px;flex-shrink:0;transition:width .2s;overflow:hidden;padding-top:max(8px,env(safe-area-inset-top))}
.side.col{width:56px}
.side .row{display:flex;align-items:center;gap:10px;min-height:44px;border-radius:22px;padding:0 10px;width:100%;text-align:start;white-space:nowrap;color:var(--fg)}
.side .row:hover,.side .row.on{background:var(--hover)}
.side .row svg.i{color:var(--icon)}
.side .row.newc{background:var(--hover);margin-block:6px}
.side.col .lbl,.side.col .list,.side.col .me .who,.side.col .hd{display:none}
.side.col .row{padding:0;justify-content:center}.side.col .me{justify-content:center;padding:6px 0}
.hd{font-size:13px;color:var(--mut);padding:10px 12px 4px}
.list{flex:1;overflow:auto;display:flex;flex-direction:column;gap:2px;min-height:0;overscroll-behavior:contain}
.item{display:flex;align-items:center;border-radius:22px;position:relative}.item:hover,.item.on{background:var(--hover)}
.item>.t{flex:1;text-align:start;padding:10px 14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-height:44px;border-radius:22px}
.item .dots{opacity:0}.item:hover .dots,.item.on .dots,.item:focus-within .dots{opacity:1}
@media(hover:none){.item .dots{opacity:1}}
.empty{color:var(--mut);padding:10px 14px;font-size:14px}
.me{display:flex;align-items:center;gap:10px;padding:8px 6px;border-top:1px solid var(--line);margin-top:4px;padding-bottom:max(8px,env(safe-area-inset-bottom))}
.av{width:32px;height:32px;border-radius:50%;background:var(--thumb);object-fit:cover;display:grid;place-items:center;font-weight:600;flex-shrink:0}
.who{flex:1;min-width:0;line-height:1.3}.who div{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.who small{color:var(--mut);font-size:12px}
.badge{font-size:11px;padding:1px 9px;border-radius:99px;background:var(--send);color:#fff}
.scrim{display:none}
.main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0}
.top{display:flex;align-items:center;gap:6px;padding:max(8px,env(safe-area-inset-top)) 12px 8px;min-height:56px}
.top .sp{flex:1}.top .brand{display:none}.burger{display:none}
.pill{font-size:13px;padding:4px 12px;border-radius:99px;background:var(--hover);color:var(--icon);white-space:nowrap}
.temp{font-size:13px;padding:4px 12px;border-radius:99px;border:1px dashed var(--line);color:var(--mut);white-space:nowrap}
#body{flex:1;display:flex;flex-direction:column;min-height:0}

/* ---- popover menus ---- */
.pw{position:relative;display:inline-flex}
.pop{position:absolute;bottom:calc(100% + 8px);z-index:40;background:var(--surface);border-radius:20px;box-shadow:var(--pop);padding:6px;min-width:220px;max-width:min(320px,calc(100vw - 24px));max-height:min(70dvh,420px);overflow:auto}
.pop.s{inset-inline-start:0}.pop.e{inset-inline-end:0}.pop.down{bottom:auto;top:calc(100% + 6px)}
.pop button{display:flex;align-items:center;gap:12px;width:100%;text-align:start;padding:10px 12px;border-radius:14px;min-height:44px}
.pop button:hover{background:var(--hover)}.pop .del{color:var(--danger)}
.pop small{display:block;color:var(--mut);font-size:12px;line-height:1.4}.pop .ck{width:20px;color:var(--acc);flex-shrink:0}.pop .lock{opacity:.55}

/* ---- thread ---- */
.thread{flex:1;overflow-y:auto;padding:8px 0 24px;overscroll-behavior:contain;scroll-behavior:auto}
.m{width:100%;max-width:48rem;margin:0 auto 28px;padding:0 16px}
.m.user{display:flex;justify-content:flex-end}
.bub{max-width:min(75%,34rem);background:var(--bubble);border-radius:24px;padding:12px 20px;white-space:pre-wrap;overflow-wrap:anywhere}
.ai{overflow-wrap:anywhere;line-height:1.8}
.ai>:first-child{margin-top:0}.ai p{margin:.6em 0}.ai h1,.ai h2,.ai h3{line-height:1.4;margin:1.2em 0 .4em}.ai h1{font-size:1.5em}.ai h2{font-size:1.3em}.ai h3{font-size:1.1em}
.ai ul,.ai ol{padding-inline-start:24px;margin:.5em 0}.ai li{margin:.2em 0}
.ai a{color:var(--acc)}.ai hr{border:0;border-top:1px solid var(--line);margin:1.2em 0}
.ai blockquote{margin:.8em 0;padding:.1em 14px;border-inline-start:3px solid var(--line);color:var(--mut)}
.ai code{background:var(--code);padding:2px 6px;border-radius:6px;font:13.5px ui-monospace,Menlo,Consolas,monospace;direction:ltr;unicode-bidi:isolate}
.cb{background:var(--code);border-radius:16px;margin:.9em 0;overflow:hidden;direction:ltr;text-align:left}
.cb .ch{display:flex;align-items:center;justify-content:space-between;padding:6px 8px 6px 16px;font-size:13px;color:var(--mut)}
.cb pre{margin:0;padding:4px 16px 14px;overflow-x:auto;font:13.5px/1.6 ui-monospace,Menlo,Consolas,monospace}
.cb pre code{background:none;padding:0;font:inherit}
.tw{overflow-x:auto;margin:.8em 0;border:1px solid var(--line);border-radius:14px}
.ai table{border-collapse:collapse;width:100%;min-width:max-content}.ai th,.ai td{padding:8px 14px;text-align:start;border-bottom:1px solid var(--line)}.ai tr:last-child td{border:0}.ai th{background:var(--hover)}
.acts{display:flex;gap:2px;margin-top:4px;margin-inline-start:-8px;opacity:0;transition:opacity .15s}
.m:hover .acts,.m:focus-within .acts{opacity:1}@media(hover:none){.acts{opacity:1}}
.dotsl{display:inline-flex;gap:5px;padding:8px 0}.dotsl i{width:8px;height:8px;border-radius:50%;background:var(--mut);animation:b 1.1s infinite ease-in-out}.dotsl i:nth-child(2){animation-delay:.15s}.dotsl i:nth-child(3){animation-delay:.3s}
@keyframes b{0%,80%,100%{opacity:.25;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}
.err{color:var(--danger);font-size:14px;margin-top:8px}

/* ---- composer ---- */
.dock{padding:4px 16px max(12px,env(safe-area-inset-bottom));background:var(--bg)}
.box{margin:0 auto;width:100%;max-width:42rem;background:var(--surface);border-radius:32px;padding:12px;display:flex;flex-wrap:wrap;align-items:flex-end;gap:2px;box-shadow:var(--shadow);position:relative;z-index:1}
.box textarea{flex:1 1 12rem;min-width:0;border:0;outline:0;background:none;resize:none;max-height:10rem;padding:8px;font-size:17px;line-height:24px;direction:auto;color:var(--fg)}
.box textarea::placeholder{color:var(--ph)}
.mp{height:40px;display:inline-flex;align-items:center;gap:2px;padding:0 8px 0 12px;border-radius:99px;color:var(--icon);font-size:14px;white-space:nowrap}.mp:hover{background:var(--hover);color:var(--fg)}
.send{width:40px;height:40px;border-radius:50%;background:var(--send);color:#fff;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s}
.send:hover{background:var(--send-h)}.send:disabled{background:var(--send-off);color:var(--send-off-fg);cursor:default}
.send .sq{width:12px;height:12px;border-radius:3px;background:currentColor}
.sp1{flex:1 1 0;min-width:0}
.note{max-width:42rem;margin:8px auto 0;text-align:center;font-size:12px;color:var(--mut);line-height:1.5}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:22px}
.chips button{background:var(--surface);box-shadow:var(--shadow);border-radius:99px;padding:9px 16px;font-size:14px;min-height:40px}.chips button:hover{background:var(--hover)}

/* ---- empty state ---- */
.hero{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:0 16px max(24px,env(safe-area-inset-bottom));min-height:0;overflow-y:auto}
.hero-in{width:100%;max-width:48rem;display:flex;flex-direction:column}
.hello{text-align:center;font-size:clamp(1.75rem,5.4vw,2.5rem);line-height:1.35;font-weight:400;margin:0 0 24px;position:relative;z-index:1;animation:up .6s .15s cubic-bezier(.22,1,.36,1) both}
.hello .sub{display:block;font-size:.5em;color:var(--mut);margin-top:4px}
.anchor{position:relative}.glow{position:absolute;top:50%;left:50%;width:680px;max-width:92%;height:260px;transform:translate(-50%,-50%);border-radius:140px;background:var(--glow);filter:blur(90px);pointer-events:none;animation:fi 1s both}
.hero .box{z-index:1}.hero .dock{padding:0;background:none;position:relative}.hero .chips{position:relative;z-index:1}
@keyframes up{from{opacity:0;transform:translateY(12px)}}@keyframes fi{from{opacity:0}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---- pages (tickets / admin) ---- */
.page{flex:1;overflow:auto;padding:8px 16px 32px}.wrap{max-width:60rem;margin:0 auto}
h2{margin:8px 0 16px;font-size:1.4rem;font-weight:500}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin-bottom:20px}
.card{background:var(--surface);box-shadow:var(--shadow);border-radius:20px;padding:14px 16px}.card b{display:block;font-size:26px;font-weight:500;line-height:1.3}.card span{color:var(--mut);font-size:13px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:99px;background:var(--send);color:#fff;font-weight:500}.btn:hover{background:var(--send-h)}
.sm{min-height:36px;padding:0 14px;border-radius:99px;background:var(--hover);font-size:14px;margin-inline-end:4px;white-space:nowrap}.sm:hover{background:var(--line)}.sm.red{color:var(--danger)}
.tblw{overflow-x:auto}.tbl{width:100%;border-collapse:collapse;font-size:14px}.tbl th{text-align:start;color:var(--mut);font-weight:500}.tbl td,.tbl th{padding:10px 8px;border-bottom:1px solid var(--line)}
input.f{background:var(--surface);box-shadow:var(--shadow);border:0;border-radius:99px;padding:0 18px;min-height:44px;outline:0;width:100%;font-size:16px}input.f:focus{box-shadow:0 0 0 2px var(--acc)}
.tmsg{background:var(--surface);box-shadow:var(--shadow);border-radius:18px;padding:10px 16px;margin-bottom:8px;overflow-wrap:anywhere}.tmsg small{color:var(--mut)}
.row2{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.row2 input{flex:1 1 180px;max-width:260px}
.toast{position:fixed;bottom:calc(96px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:10px 18px;border-radius:99px;z-index:90;font-size:14px;max-width:90vw}

/* ---- login ---- */
.login{height:100%;overflow:auto;display:grid;place-items:center;padding:max(20px,env(safe-area-inset-top)) 20px max(20px,env(safe-area-inset-bottom));position:relative}
.login .glow{top:32%;width:780px;height:300px}
.lcard{position:relative;width:100%;max-width:420px;text-align:center;background:var(--surface);box-shadow:var(--shadow);border-radius:32px;padding:clamp(28px,6vw,40px) clamp(20px,5vw,32px)}
.lcard .logo{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:22px}.lcard .mark{width:34px;height:34px}.lcard .brand{font-size:26px}
.lcard h1{font-size:clamp(1.4rem,5vw,1.7rem);font-weight:500;line-height:1.4;margin:0 0 8px}.lcard p{color:var(--mut);margin:0 0 24px;font-size:15px}
.dc{display:flex;gap:10px;align-items:center;justify-content:center;width:100%;min-height:52px;border-radius:99px;background:#5865f2;color:#fff;font-weight:600;text-decoration:none;font-size:16px;transition:background .15s}
.dc:hover{background:#4752c4}.dc[aria-busy=true]{pointer-events:none;opacity:.85}
.spin{width:20px;height:20px;border-radius:50%;border:3px solid #ffffff55;border-top-color:#fff;animation:sp .7s linear infinite}@keyframes sp{to{transform:rotate(360deg)}}
.alert{display:flex;gap:10px;align-items:flex-start;text-align:start;background:#c5221f14;color:var(--danger);border-radius:16px;padding:12px 14px;margin:0 0 18px;font-size:14px;line-height:1.6}
.feat{list-style:none;padding:0;margin:22px 0 0;text-align:start;display:grid;gap:10px;font-size:14px;color:var(--mut)}.feat li{display:flex;gap:10px;align-items:center}.feat svg.i{color:var(--acc);width:18px;height:18px}
.fine{font-size:12px!important;margin:20px 0 0!important;line-height:1.6}
.state{height:100%;display:grid;place-items:center;color:var(--mut)}

/* ---- responsive ---- */
@media(max-width:820px){
 .side,.side.col{position:fixed;inset-block:0;inset-inline-start:0;width:min(86vw,320px);z-index:60;transform:translateX(100%);transition:transform .25s;box-shadow:var(--pop);border-inline-end:0}
 [dir=ltr] .side,[dir=ltr] .side.col{transform:translateX(-100%)}
 .side.open{transform:none!important}
 .side.col .lbl,.side.col .list,.side.col .me .who,.side.col .hd{display:revert}.side.col .list{display:flex}.side.col .hd{display:block}
 .side.col .row{padding:0 10px;justify-content:flex-start}
 .scrim{display:block;position:fixed;inset:0;background:#00000066;z-index:55;opacity:0;pointer-events:none;transition:opacity .25s}.scrim.on{opacity:1;pointer-events:auto}
 .burger{display:inline-flex}.top .brand{display:inline}.top{gap:4px;padding-inline:8px}
 .tbl.rs thead{display:none}.tbl.rs,.tbl.rs tbody,.tbl.rs tr,.tbl.rs td{display:block;width:100%}
 .tbl.rs tr{background:var(--surface);box-shadow:var(--shadow);border-radius:18px;padding:8px 14px;margin-bottom:10px}
 .tbl.rs td{border:0;padding:5px 0;display:flex;justify-content:space-between;gap:12px;align-items:center;overflow-wrap:anywhere}
 .tbl.rs td::before{content:attr(data-l);color:var(--mut);font-size:13px;flex-shrink:0}.tbl.rs td.ac{flex-wrap:wrap;justify-content:flex-start}.tbl.rs td.ac::before{display:none}
}
@media(max-width:560px){
 .m{padding:0 12px;margin-bottom:22px}.bub{max-width:88%;padding:10px 16px}.dock{padding-inline:10px}
 .box{border-radius:28px;padding:10px}.box textarea{flex-basis:100%;order:-1}
 .hero{justify-content:flex-start;padding-top:12vh}.chips button{font-size:13px}
 .pop{min-width:200px}.pill{font-size:12px;padding:3px 10px}
}
@media(max-height:480px) and (orientation:landscape){.hero{justify-content:flex-start;padding-top:2vh}.hello{margin-bottom:12px}.chips{display:none}}
@media(min-width:1400px){.m,.hero-in{max-width:52rem}.box,.note{max-width:46rem}}