:root{--bg:#f2f6f9;--surface:#fff;--ink:#0f2230;--muted:#5a6b78;--line:#e1e8ee;--pri:#0e7490;--pri-d:#0a5b73;--pri-l:#e0f4f9;--ok:#16a34a;--okl:#dcfce7;--warn:#b45309;--warnl:#fef3c7;--bad:#b91c1c;--badl:#fee2e2;--r:14px;--side:240px;--sab:env(safe-area-inset-bottom,0px);--sat:env(safe-area-inset-top,0px)}
@media (prefers-color-scheme:dark){:root{--bg:#0b1620;--surface:#122230;--ink:#e8f1f6;--muted:#93a7b5;--line:#22384a;--pri:#22b8d9;--pri-d:#7fdcef;--pri-l:#0f2f3b;--okl:#0f3320;--warnl:#3b2a0b;--badl:#3d1414;--warn:#fbbf24;--bad:#f87171}}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);overscroll-behavior-y:none}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--pri)}h1,h2,h3{margin:0 0 .4em;line-height:1.25}h1{font-size:1.45rem}h2{font-size:1.15rem}h3{font-size:1rem}
.muted{color:var(--muted)}.sm{font-size:.85rem}.right{margin-left:auto}.nowrap{white-space:nowrap}
/* shell */
.shell{display:grid;grid-template-columns:var(--side) 1fr;min-height:100vh}
.side{background:var(--surface);border-right:1px solid var(--line);padding:16px 12px;position:sticky;top:0;height:100vh;overflow:auto;display:flex;flex-direction:column;gap:2px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;padding:6px 10px 16px}
.brand img{width:30px;height:30px;border-radius:8px}
.nav a,.nav button{display:flex;gap:12px;align-items:center;padding:10px 12px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600;width:100%;border:0;background:none;cursor:pointer;text-align:left}
.nav a:hover,.nav button:hover{background:var(--pri-l)}.nav a.on{background:var(--pri-l);color:var(--pri-d)}
.nav svg,.ic{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}
.who{margin-top:auto;border-top:1px solid var(--line);padding-top:12px;font-size:.85rem}
.topbar{display:none}
.main{padding:24px;max-width:1200px;width:100%}
.ph{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.ph h1{margin:0}
/* components */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.card+.card{margin-top:14px}.grid>.card+.card{margin-top:0}
.grid{display:grid;gap:14px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.stat{display:block;text-decoration:none;color:inherit}
.stat b{display:block;font-size:1.8rem;line-height:1.1}.stat span{color:var(--muted);font-size:.85rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-weight:600;cursor:pointer;text-decoration:none;color:var(--ink);min-height:40px}
.btn:hover{border-color:var(--pri)}
.btn.pri{background:var(--pri);border-color:var(--pri);color:#fff}.btn.pri:hover{background:var(--pri-d)}
.btn.bad{color:var(--bad)}.btn.sm{padding:5px 10px;min-height:32px;font-size:.85rem}.btn.block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.chip{display:inline-block;padding:2px 9px;border-radius:99px;font-size:.75rem;font-weight:700;background:var(--pri-l);color:var(--pri-d);white-space:nowrap}
.chip.ok{background:var(--okl);color:var(--ok)}.chip.warn{background:var(--warnl);color:var(--warn)}.chip.bad{background:var(--badl);color:var(--bad)}.chip.gray{background:var(--line);color:var(--muted)}
.list{display:grid}
.item{display:flex;gap:12px;align-items:center;padding:12px 4px;border-bottom:1px solid var(--line);text-decoration:none;color:inherit;cursor:pointer}
.item:last-child{border-bottom:0}.item:hover{background:color-mix(in srgb,var(--pri-l) 40%,transparent)}
.item .grow{flex:1;min-width:0}.item .t{font-weight:700}.item .s{color:var(--muted);font-size:.85rem}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--pri-l);color:var(--pri-d);display:grid;place-items:center;font-weight:800;flex:none}
.tbl{width:100%;border-collapse:collapse;font-size:.9rem}
.tbl th,.tbl td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;background:var(--bg)}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.tabs{display:flex;gap:6px;overflow-x:auto;margin-bottom:14px;padding-bottom:2px}
.tabs button{border:1px solid var(--line);background:var(--surface);padding:7px 14px;border-radius:99px;font-weight:600;cursor:pointer;white-space:nowrap}
.tabs button.on{background:var(--pri);color:#fff;border-color:var(--pri)}
.search{width:100%;max-width:340px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.empty{text-align:center;padding:30px 10px;color:var(--muted)}
.kv{display:grid;grid-template-columns:130px 1fr;gap:6px 12px;font-size:.92rem}.kv dt{color:var(--muted)}.kv dd{margin:0}
.bar{height:8px;background:var(--line);border-radius:9px;overflow:hidden}.bar i{display:block;height:100%;background:var(--pri)}
.lock{border:1px dashed var(--line);border-radius:var(--r);padding:26px;text-align:center;background:var(--surface)}
/* forms */
.fgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.fgrid .full{grid-column:1/-1}
.fld{display:grid;gap:4px;font-size:.8rem;font-weight:700;color:var(--muted)}
.fld input,.fld select,.fld textarea{padding:10px;border:1px solid var(--line);border-radius:10px;background:var(--bg);font-weight:400;color:var(--ink);width:100%;font-size:16px}
.fld textarea{min-height:80px;resize:vertical}
.fld.chk{display:flex;align-items:center;gap:10px;font-size:.92rem;color:var(--ink);font-weight:600}.fld.chk input{width:20px;height:20px}
.hint{font-weight:400;font-size:.78rem;color:var(--muted)}
/* dialog */
dialog{border:0;border-radius:18px;padding:0;width:min(640px,calc(100vw - 24px));max-height:calc(100vh - 24px);background:var(--surface);color:var(--ink);box-shadow:0 30px 80px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(8,20,30,.55)}
dialog .dh{display:flex;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--surface);z-index:1}
dialog .dh h2{margin:0;flex:1}.dx{border:0;background:none;font-size:1.6rem;line-height:1;cursor:pointer;color:var(--muted)}
dialog .db{padding:18px}dialog .df{display:flex;gap:10px;justify-content:flex-end;padding:12px 18px;border-top:1px solid var(--line);flex-wrap:wrap;position:sticky;bottom:0;background:var(--surface)}
#toast{position:fixed;left:50%;bottom:calc(90px + var(--sab));transform:translate(-50%,20px);background:#10222f;color:#fff;padding:11px 18px;border-radius:12px;opacity:0;pointer-events:none;transition:.25s;z-index:100;max-width:90vw;font-weight:600}
#toast.show{opacity:1;transform:translate(-50%,0)}
/* login */
.login{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(160deg,#0e7490,#0a3f52)}
.login .box{background:var(--surface);border-radius:22px;padding:26px;width:min(460px,100%)}
.login .brand{justify-content:center;padding-bottom:6px}
.acct{display:flex;gap:12px;align-items:center;width:100%;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--bg);margin-top:10px;cursor:pointer;text-align:left}
.acct:hover{border-color:var(--pri)}.acct b{display:block}
/* chat */
.chatwrap{display:grid;grid-template-columns:300px 1fr;gap:0;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden;height:calc(100vh - 130px);min-height:420px}
.clist{border-right:1px solid var(--line);overflow:auto}
.cthread{display:flex;flex-direction:column;min-width:0}
.cmsgs{flex:1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:8px;background:var(--bg)}
.msg{max-width:78%;padding:9px 12px;border-radius:14px;background:var(--surface);border:1px solid var(--line);align-self:flex-start;word-wrap:break-word}
.msg.me{align-self:flex-end;background:var(--pri);color:#fff;border-color:var(--pri)}
.msg img{max-width:100%;border-radius:10px;margin-top:6px;display:block}
.msg .m{font-size:.7rem;opacity:.75;margin-top:3px}
.msg .u{margin-top:6px;border-radius:9px;padding:6px 8px;background:rgba(128,128,128,.15);font-size:.8rem}
.msg .fw{font-size:.72rem;opacity:.8;font-style:italic}
.composer{border-top:1px solid var(--line);padding:10px;display:grid;gap:8px;background:var(--surface)}
.composer .row{flex-wrap:nowrap}.composer textarea{flex:1;padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--bg);resize:none;height:44px;font-size:16px}
.pill{border:1px solid var(--line);background:var(--bg);border-radius:99px;padding:6px 12px;font-size:.82rem;cursor:pointer;text-align:left}
.pills{display:flex;gap:6px;flex-wrap:wrap}
.backbtn{display:none}
/* quote */
.qline{display:grid;grid-template-columns:2fr 70px 1fr 1fr 1fr 34px;gap:8px;align-items:end;padding:10px 0;border-bottom:1px solid var(--line)}
.totals{margin-left:auto;width:min(320px,100%);display:grid;gap:4px}.totals div{display:flex;justify-content:space-between}.totals .big{font-weight:800;font-size:1.2rem;border-top:2px solid var(--ink);padding-top:6px;margin-top:4px}
.doc{background:#fff;color:#111;padding:26px;border-radius:10px;border:1px solid #ddd}
.doc h2{color:#0a5b73}.doc table{width:100%;border-collapse:collapse}.doc td,.doc th{padding:7px;border-bottom:1px solid #ddd;text-align:left}.doc .r{text-align:right}
.sheet{position:fixed;inset:0;background:rgba(8,20,30,.55);z-index:60;display:none}.sheet.open{display:block}
.sheet>div{position:absolute;left:0;right:0;bottom:0;background:var(--surface);border-radius:20px 20px 0 0;padding:14px 14px calc(14px + var(--sab));max-height:80vh;overflow:auto}
.bottom{display:none}
/* phone */
@media (max-width:900px){
 .shell{display:block}.side{display:none}
 .topbar{display:flex;align-items:center;gap:10px;padding:calc(10px + var(--sat)) 14px 10px;background:var(--pri);color:#fff;position:sticky;top:0;z-index:30}
 .topbar b{font-size:1.05rem}.topbar .btn{background:rgba(255,255,255,.16);color:#fff;border:0}
 .main{padding:14px 14px calc(90px + var(--sab))}
 .g4,.g3{grid-template-columns:repeat(2,1fr)}.g2{grid-template-columns:minmax(0,1fr)}.fgrid{grid-template-columns:1fr}.card{min-width:0}
 .bottom{display:flex;position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--line);z-index:40;padding:6px 4px calc(6px + var(--sab))}
 .bottom a,.bottom button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 2px;font-size:.68rem;font-weight:600;color:var(--muted);text-decoration:none;border:0;background:none;border-radius:10px}
 .bottom a.on{color:var(--pri)}.bottom svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
 .chatwrap{display:block;height:calc(100vh - 170px)}
 .chatwrap .clist,.chatwrap .cthread{height:100%}
 .chatwrap.thread .clist,.chatwrap:not(.thread) .cthread{display:none}
 .backbtn{display:inline-flex}
 .msg{max-width:88%}
 .qline{grid-template-columns:1fr 1fr;}.qline .full{grid-column:1/-1}
 .kv{grid-template-columns:105px 1fr}
 .tbl.stack thead{display:none}.tbl.stack tr{display:block;border-bottom:1px solid var(--line);padding:8px 0}.tbl.stack td{display:flex;justify-content:space-between;gap:10px;border:0;padding:3px 10px}.tbl.stack td::before{content:attr(data-l);color:var(--muted);font-size:.75rem;font-weight:700}
 dialog{width:100vw;max-height:92vh;margin:auto 0 0;border-radius:20px 20px 0 0;max-width:100vw}
}
@media print{body *{visibility:hidden}.printarea,.printarea *{visibility:visible}.printarea{position:absolute;left:0;top:0;width:100%}dialog{box-shadow:none}}