/* E-invoicing billing — ledger layout: fixed sidebar | working area */
:root{
  --bg:#f3f4f6; --panel:#ffffff; --panel2:#f7f8fa; --ink:#18202b; --muted:#5b6573; --line:#dde1e7;
  --accent:#1d4e89; --accent-ink:#ffffff; --accent-soft:#e3ecf7; --side:#16233a; --side-ink:#dbe3ef; --side-muted:#8fa0b8;
  --ok:#1f7a4d; --ok-soft:#dcf1e5; --warn:#9a6200; --warn-soft:#fbecc9; --bad:#b33a2b; --bad-soft:#f8dcd7; --info:#2b5f9e; --info-soft:#dbe7f6;
  --f-display:"Source Serif 4",Georgia,"Times New Roman",serif;
  --f-body:"IBM Plex Sans","Segoe UI",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --f-ar:"IBM Plex Sans Arabic",Tahoma,sans-serif;
  --r:8px; color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#10151d; --panel:#171e28; --panel2:#1c2531; --ink:#e6ebf2; --muted:#9aa6b6; --line:#2a3443;
  --accent:#6ea3e6; --accent-ink:#0b1322; --accent-soft:#1b2d46; --side:#0b111a; --side-ink:#dbe3ef; --side-muted:#7f8ea4;
  --ok:#5cc58e; --ok-soft:#173326; --warn:#e7b44f; --warn-soft:#382c12; --bad:#ec7b6b; --bad-soft:#3d1d18; --info:#7fb0ea; --info-soft:#1a2a3f;
  color-scheme:dark}}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:14px;line-height:1.45}
[hidden]{display:none!important}
a{color:var(--accent)}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input,select,textarea{font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:8px 10px;width:100%;min-width:0}
textarea{resize:vertical}
.num{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.ar{font-family:var(--f-ar);direction:rtl}
.muted{color:var(--muted)}
.r{text-align:right}

.shell{display:grid;grid-template-columns:230px minmax(0,1fr);height:100%}
.side{background:var(--side);color:var(--side-ink);display:flex;flex-direction:column;padding:18px 12px;gap:18px;overflow:auto}
.brand{padding:0 8px}
.brand b{font-family:var(--f-display);font-size:18px;display:block;line-height:1.2}
.brand span{color:var(--side-muted);font-size:12px}
#nav{display:flex;flex-direction:column;gap:2px}
.nav{display:flex;justify-content:space-between;align-items:center;border:0;background:none;color:var(--side-ink);text-align:left;padding:9px 10px;border-radius:6px;font-weight:500}
.nav:hover{background:rgb(255 255 255 / .06)}
.nav[aria-current="page"]{background:rgb(255 255 255 / .12);box-shadow:inset 3px 0 0 #6ea3e6}
.nav .count{font-family:var(--f-mono);font-size:11px;background:rgb(255 255 255 / .12);border-radius:99px;padding:0 7px}
.nav-sep{height:1px;background:rgb(255 255 255 / .1);margin:8px 4px}
.me{margin-top:auto;display:grid;gap:2px;padding:10px;border-top:1px solid rgb(255 255 255 / .1);font-size:13px}
.me small{color:var(--side-muted);text-transform:capitalize}
.me a{color:#9cc2f0;font-size:12px}

main{overflow:auto;padding:22px max(16px,env(safe-area-inset-right)) 40px 26px;min-width:0}
.head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.head h1{font-family:var(--f-display);font-size:26px;font-weight:700;margin:0;margin-right:auto;letter-spacing:-.01em}
.head h1 small{display:block;font-family:var(--f-body);font-size:13px;font-weight:400;color:var(--muted);letter-spacing:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;text-decoration:none;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:6px;padding:8px 13px;font-weight:500;white-space:nowrap}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.danger{color:var(--bad);border-color:var(--bad-soft)}
.btn.ghost{border-color:transparent;background:none}
.btn.sm{padding:4px 9px;font-size:12px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.link{border:0;background:none;color:var(--accent);padding:0;text-decoration:underline;font-size:13px}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px;min-width:0}
.card h2{font-size:14px;margin:0 0 12px;font-weight:600}
.grid2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.stack{display:grid;gap:14px}
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:14px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:14px}
.kpi small{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.07em}
.kpi b{display:block;font-family:var(--f-mono);font-size:21px;font-weight:600;margin-top:4px}
.kpi span{font-size:12px;color:var(--muted)}
.kpi.alert{border-color:var(--bad-soft);background:linear-gradient(var(--panel),var(--panel)) padding-box}
.kpi.alert b{color:var(--bad)}

.pill{display:inline-block;font-size:11px;font-weight:600;padding:2px 8px;border-radius:99px;background:var(--panel2);color:var(--muted);white-space:nowrap;border:1px solid var(--line)}
.pill.ok{background:var(--ok-soft);color:var(--ok);border-color:transparent}
.pill.warn{background:var(--warn-soft);color:var(--warn);border-color:transparent}
.pill.bad{background:var(--bad-soft);color:var(--bad);border-color:transparent}
.pill.info{background:var(--info-soft);color:var(--info);border-color:transparent}

.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;align-items:center}
.filters input[type=search]{max-width:260px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--panel);border-radius:99px;padding:5px 11px;font-size:13px;font-weight:500}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}

.tbl-wrap{overflow-x:auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--r)}
.card .tbl-wrap{border:0;border-radius:0}
table.list{width:100%;border-collapse:collapse;font-size:13px}
table.list th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600;padding:9px 10px;border-bottom:1px solid var(--line);background:var(--panel2);white-space:nowrap}
table.list td{padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
table.list tr:last-child td{border-bottom:0}
table.list tr.click{cursor:pointer}
table.list tr.click:hover td{background:var(--panel2)}
table.list .r{text-align:right}
table.list tfoot td{font-weight:600;background:var(--panel2)}

/* editor */
.editor{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;align-items:start}
.fields{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.lbl{display:grid;gap:4px;font-size:12px;color:var(--muted);min-width:0}
.lbl.span2{grid-column:span 2}.lbl.span4{grid-column:1/-1}
.lines-tbl{width:100%;border-collapse:collapse;font-size:13px;min-width:860px}
.lines-tbl th{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);text-align:left;padding:6px 4px;font-weight:600}
.lines-tbl td{padding:4px;vertical-align:top}
.lines-tbl input,.lines-tbl select{padding:6px 7px}
.lines-tbl .w-qty{width:74px}.lines-tbl .w-unit{width:96px}.lines-tbl .w-price{width:110px}.lines-tbl .w-disc{width:66px}.lines-tbl .w-vat{width:120px}.lines-tbl .w-amt{width:112px;min-width:112px;text-align:right;padding-top:11px;white-space:nowrap}
.lines-tbl tr+tr td{border-top:1px solid var(--line)}
.lines-tbl .sub{margin-top:4px}
.x{border:0;background:none;color:var(--muted);font-size:18px;line-height:1;padding:6px}
.x:hover{color:var(--bad)}
.flags{display:flex;gap:6px;flex-wrap:wrap}
.flag{display:inline-flex;gap:6px;align-items:center;border:1px solid var(--line);border-radius:6px;padding:5px 9px;font-size:12.5px;cursor:pointer}
.flag input{width:auto}
.totals{display:grid;grid-template-columns:1fr auto;gap:6px 10px;font-size:13.5px}
.totals .grand{font-family:var(--f-display);font-size:20px;font-weight:700;border-top:2px solid var(--ink);padding-top:8px}
.totals .grand.num{font-family:var(--f-mono)}
.bd{font-size:12px;color:var(--muted);display:grid;grid-template-columns:1fr auto auto;gap:3px 10px;margin-top:10px;padding-top:10px;border-top:1px dashed var(--line)}
.sticky{position:sticky;top:0}

/* validation */
.checks{display:grid;gap:6px;margin:0;padding:0;list-style:none;font-size:13px}
.checks li{display:flex;gap:8px;align-items:flex-start}
.checks li::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;margin-top:6px;background:var(--bad)}
.checks li.w::before{background:var(--warn)}
.checks li.ok::before{background:var(--ok)}

/* document view */
.docview{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px;align-items:start}
.parties{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.party h3{margin:0 0 4px;font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.party b{font-size:15px}
.party div{color:var(--muted);font-size:13px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;font-size:13px}
.kv>span:nth-child(odd){color:var(--muted)}
.kv>span:nth-child(even){text-align:right}
.einv{border-radius:var(--r);padding:14px;border:1px solid var(--line);background:var(--panel)}
.einv .state{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.einv .state b{font-family:var(--f-display);font-size:17px}
.steps{display:flex;gap:4px;margin:10px 0}
.steps i{flex:1;height:4px;border-radius:2px;background:var(--line)}
.steps i.on{background:var(--accent)}
.steps i.bad{background:var(--bad)}
.timeline{list-style:none;margin:0;padding:0;font-size:12.5px;display:grid;gap:8px}
.timeline li{display:grid;grid-template-columns:auto 1fr;gap:2px 10px}
.timeline li span{color:var(--muted);font-family:var(--f-mono);font-size:11.5px}
.timeline li small{grid-column:2;color:var(--muted)}
.actions{display:flex;gap:8px;flex-wrap:wrap}

/* charts */
.bars{display:flex;align-items:flex-end;gap:10px;height:150px;border-bottom:1px solid var(--line);padding-top:18px}
.bars .b{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;position:relative}
.bars .b i{display:block;width:100%;max-width:56px;background:var(--accent);border-radius:4px 4px 0 0;min-height:2px}
.bars .b.cur i{background:#c58a1c}
.bars .b span{font-size:10.5px;font-family:var(--f-mono);color:var(--muted);margin-bottom:3px}
.bars-x{display:flex;gap:10px;margin-top:5px}
.bars-x span{flex:1;text-align:center;font-size:11px;color:var(--muted)}

/* modal */
.scrim{position:fixed;inset:0;background:rgb(10 15 25 / .5);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}
.modal{background:var(--panel);border-radius:12px;width:min(640px,100%);max-height:92%;overflow:auto;box-shadow:0 20px 50px rgb(0 0 0 / .3)}
.m-head{display:flex;align-items:center;gap:8px;padding:15px 18px;border-bottom:1px solid var(--line)}
.m-head h2{margin:0;margin-right:auto;font-family:var(--f-display);font-size:19px}
.m-body{padding:18px;display:grid;gap:12px}
.m-foot{padding:13px 18px;border-top:1px solid var(--line);display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}

.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:8px;font-weight:500;z-index:60;box-shadow:0 8px 24px rgb(0 0 0 / .25);max-width:90vw}
.toast.err{background:var(--bad);color:#fff}
.empty{color:var(--muted);text-align:center;padding:36px 12px}
.note{background:var(--info-soft);color:var(--info);border-radius:6px;padding:10px 12px;font-size:13px}

/* sign-in */
body.auth{display:flex;align-items:center;justify-content:center;padding:16px;background:var(--side)}
.auth-card{background:var(--panel);border-radius:12px;padding:28px;width:min(380px,100%);display:grid;gap:14px}
.auth-card h1{font-family:var(--f-display);margin:0;font-size:25px}
.auth-card p{margin:0}
.auth-card label{display:grid;gap:4px;font-size:12px;color:var(--muted)}
.btn.lg{padding:12px 16px;font-size:15px}
.alert{background:var(--bad-soft);color:var(--bad);padding:10px 12px;border-radius:6px}
.ok{background:var(--ok-soft);color:var(--ok);padding:10px 12px;border-radius:6px}

@media (max-width:1100px){
  .editor,.docview{grid-template-columns:minmax(0,1fr)}
  .kpis{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sticky{position:static}
}
@media (max-width:800px){
  .shell{grid-template-columns:minmax(0,1fr);grid-template-rows:auto 1fr}
  .side{flex-direction:row;flex-wrap:wrap;align-items:center;padding:10px 16px;gap:8px}
  #nav{flex-direction:row;overflow-x:auto;flex-wrap:nowrap;width:100%}
  .nav{white-space:nowrap}.nav-sep{display:none}
  .me{margin:0 0 0 auto;border:0;padding:0;display:flex;gap:8px;align-items:center}
  main{padding:16px max(16px,env(safe-area-inset-right)) 40px max(16px,env(safe-area-inset-left))}
  .grid2,.grid3,.parties{grid-template-columns:minmax(0,1fr)}
  .fields{grid-template-columns:1fr 1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}