:root{
  --bg:#f3f4f6; --surface:#ffffff; --ink:#1a1f2b; --ink2:#3d4554; --muted:#6b7280;
  --line:#e3e6eb; --line2:#d3d8df; --accent:#1a1f2b; --focus:#2563eb;
  --ok:#0f7b4a; --okbg:#e7f5ee; --err:#b42318; --errbg:#fdecea;
  --blue:#1d4ed8; --bluebg:#e8efff; --amber:#a15c07; --amberbg:#fdf2dc; --graybg:#eef0f3;
  --r:10px; --font:"Instrument Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--font);font-size:15px;line-height:1.5;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:inherit}
.num{font-variant-numeric:tabular-nums}
.r{text-align:right}
.muted{color:var(--muted)}
.small{font-size:12.5px}
h1{font-size:26px;line-height:1.2;font-weight:600;letter-spacing:-.015em;margin:0}
.h2{font-size:17px;font-weight:600;margin:36px 0 12px}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}

/* shell */
.shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.side{background:var(--ink);color:#c8ccd4;padding:22px 16px;display:flex;flex-direction:column;gap:26px;position:sticky;top:0;height:100vh}
.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:#fff;font-weight:600}
.brand small{display:block;font-weight:400;font-size:12px;color:#8b92a0}
.mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:#fff;color:var(--ink);font-weight:700;font-size:18px}
.mark.big{width:48px;height:48px;font-size:24px;background:var(--ink);color:#fff;border-radius:12px}
.side nav{display:flex;flex-direction:column;gap:2px}
.side nav a{padding:8px 10px;border-radius:7px;text-decoration:none;font-weight:500}
.side nav a:hover{background:#262c3a;color:#fff}
.side nav a.on{background:#fff;color:var(--ink)}
.side-cos p{margin:0 0 6px 10px;font-size:12.5px;color:#8b92a0}
.side-cos a{display:flex;align-items:center;gap:9px;padding:6px 10px;text-decoration:none;font-size:13.5px;border-radius:7px}
.side-cos a:hover{background:#262c3a;color:#fff}
.side-cos i,.dot{display:inline-block;width:9px;height:9px;border-radius:50%;flex:none}
.dot{margin-right:8px;vertical-align:1px}
.side-user{margin-top:auto;font-size:13px;display:flex;flex-wrap:wrap;gap:4px 12px}
.side-user span{width:100%;color:#fff}
.side-user a{color:#8b92a0}
.main{padding:32px 40px 64px;max-width:1180px;width:100%}

.ph{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.ph > div:first-child{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.actions form{margin:0}
.actions.end{justify-content:flex-end}
.issuer{font-size:13.5px;padding:5px 11px;border-radius:999px;background:var(--surface);border:1px solid var(--line);box-shadow:inset 3px 0 0 var(--c)}

/* buttons */
.btn{font:inherit;font-size:14px;font-weight:500;border-radius:8px;padding:8px 15px;border:1px solid transparent;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:6px;line-height:1.3;white-space:nowrap}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:#2c3446}
.btn.primary:disabled{opacity:.4;cursor:not-allowed}
.btn.ghost{background:var(--surface);border-color:var(--line2);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink2)}
.btn.danger{color:var(--err)}
.btn.small{font-size:13px;padding:6px 12px}
.btn.wide{width:100%;justify-content:center;padding:11px}
.link{background:none;border:0;padding:0;font:inherit;color:var(--blue);cursor:pointer;text-decoration:none;font-weight:500}
.chip{font:inherit;font-size:13px;border:1px solid var(--line2);background:var(--surface);border-radius:999px;padding:4px 11px;cursor:pointer}
.chip:hover{border-color:var(--ink2)}

/* flash/notes */
.flash{padding:11px 14px;border-radius:8px;margin-bottom:18px;font-size:14px;background:var(--okbg);color:var(--ok)}
.flash.err{background:var(--errbg);color:var(--err)}
.note{color:var(--ink2);background:var(--surface);border-left:3px solid var(--line2);padding:10px 14px;border-radius:0 8px 8px 0;font-size:14px;max-width:72ch}

/* kpis */
.kpis{display:grid;grid-template-columns:repeat(3,1fr);background:var(--surface);border:1px solid var(--line);border-radius:var(--r);margin-bottom:22px}
.kpis>div{padding:16px 20px;display:flex;flex-direction:column}
.kpis>div+div{border-left:1px solid var(--line)}
.kpis span{font-size:13px;color:var(--muted)}
.kpis b{font-size:23px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.kpis small{color:var(--muted);font-size:13px}

/* filters / forms */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
input,select,textarea{font:inherit;font-size:14.5px;color:var(--ink);background:var(--surface);border:1px solid var(--line2);border-radius:8px;padding:8px 10px;width:100%}
.filters select,.filters input{width:auto;min-width:180px}
textarea{resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--focus);box-shadow:0 0 0 3px #2563eb22}
.form{display:flex;flex-direction:column;gap:14px}
.form label{display:flex;flex-direction:column;gap:5px;font-size:13.5px;font-weight:500;color:var(--ink2)}
.form label small{font-weight:400;color:var(--muted)}
.form label.check{flex-direction:row;align-items:center;gap:8px;font-weight:400}
.form label.check input{width:auto}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px}
.grid3{display:grid;grid-template-columns:repeat(4,1fr);gap:14px 18px}
.grid3 .span2{grid-column:span 2}
.full{grid-column:1/-1}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;margin-bottom:16px}
.panel.narrow{max-width:440px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0}
.two .panel{margin:0}
fieldset{border:1px solid var(--line);border-radius:8px;padding:10px 14px;display:flex;flex-direction:column;gap:6px}
legend{font-size:13px;color:var(--muted);padding:0 4px}
.presets{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:-6px}

/* tables */
.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);margin-bottom:16px}
.list{width:100%;border-collapse:collapse;font-size:14px}
.list th{text-align:left;font-weight:500;color:var(--muted);font-size:13px;padding:11px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.list td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
.list tbody tr:last-child td{border-bottom:0}
.list tbody tr[onclick]{cursor:pointer}
.list tbody tr[onclick]:hover{background:#f8f9fb}
.list td a{text-decoration:none;font-weight:500}
.list th.r,.list td.r{text-align:right}
.list .late{color:var(--err);font-weight:500}
.list tr.off{opacity:.5}
.list.compact td{padding:7px 14px;font-size:13px}
.tag{display:inline-block;font-size:12.5px;font-weight:500;padding:2px 9px;border-radius:999px;font-style:normal;background:var(--graybg);color:var(--ink2)}
.tag.blue{background:var(--bluebg);color:var(--blue)}
.tag.green{background:var(--okbg);color:var(--ok)}
.tag.amber{background:var(--amberbg);color:var(--amber)}
.empty{background:var(--surface);border:1px dashed var(--line2);border-radius:var(--r);padding:40px;text-align:center}
.empty p{margin:0 0 14px;color:var(--ink2)}

/* company picker */
.pick{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.pick a{display:flex;flex-direction:column;gap:2px;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);text-decoration:none;border-top:4px solid var(--c)}
.pick a:hover{border-color:var(--ink2);border-top-color:var(--c)}
.pick span{font-size:13.5px;color:var(--muted)}

/* invoice editor */
.fxhint{font-size:13.5px;color:var(--muted);align-self:end;padding-bottom:9px}
.lines-head,.line{display:grid;grid-template-columns:1fr 90px 130px 130px 32px;gap:10px;align-items:start}
.lines-head{font-size:13px;color:var(--muted);padding-bottom:8px;border-bottom:1px solid var(--line);margin-bottom:10px}
.line{margin-bottom:8px}
.line textarea{min-height:39px;overflow:hidden}
.line input{text-align:right;font-variant-numeric:tabular-nums}
.line output{padding:8px 2px;text-align:right;font-weight:500}
.x{border:0;background:none;font-size:20px;color:var(--muted);cursor:pointer;padding:6px 0;line-height:1}
.x:hover{color:var(--err)}
.sum{display:flex;justify-content:flex-end;gap:24px;align-items:baseline;border-top:1px solid var(--line);margin-top:14px;padding-top:12px}
.sum span{color:var(--muted);font-size:14px}
.sum b{font-size:22px;font-weight:600}

/* invoice sheet (the memorable bit) */
.sheet{background:var(--surface);border:1px solid var(--line);border-radius:4px;max-width:860px;padding:44px 48px;box-shadow:0 1px 0 var(--line),0 18px 40px -24px #1a1f2b40;position:relative;margin-bottom:20px}
.sheet::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:var(--c)}
.sheet-top{display:flex;justify-content:space-between;gap:24px}
.sheet h2{margin:0 0 6px;font-size:19px;font-weight:600}
.sheet-top p{margin:0;font-size:13.5px;color:var(--ink2)}
.doc{font-size:24px;font-weight:600;margin:0 0 10px;letter-spacing:-.01em}
.doc span{color:var(--muted);font-weight:400;font-size:16px}
dl{display:grid;grid-template-columns:auto auto;gap:2px 14px;margin:0;font-size:13.5px;justify-content:end}
dt{color:var(--muted)}dd{margin:0;font-weight:500;font-variant-numeric:tabular-nums}
.billto{margin:30px 0 24px}
.billto small{color:var(--muted);font-size:12.5px;display:block}
.billto b{font-size:16px}
.billto p{margin:2px 0 0;font-size:13.5px;color:var(--ink2)}
.sheet-lines{width:100%;border-collapse:collapse;font-size:14px}
.sheet-lines th{text-align:left;font-weight:500;font-size:12.5px;color:var(--muted);border-bottom:1.5px solid var(--ink);padding:8px 6px}
.sheet-lines td{padding:10px 6px;border-bottom:1px solid var(--line);vertical-align:top;white-space:pre-line}
.sheet-lines th.r,.sheet-lines td.r{text-align:right;white-space:nowrap}
.dual{display:grid;grid-template-columns:1fr 1fr;margin-top:26px;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.dual>div{padding:16px 20px}
.dual small{display:block;color:var(--muted);font-size:13px}
.dual b{font-size:30px;font-weight:600;letter-spacing:-.02em;line-height:1.2}
.dual .eur{background:#f7f8fa;border-left:1px solid var(--line)}
.dual .eur b{color:var(--ink2)}
.dual .est{color:var(--muted)!important}
.dual p{margin:6px 0 0;font-size:12.5px;color:var(--ink2)}
.sheet-note{font-size:13px;color:var(--ink2);margin:16px 0 0;white-space:pre-line;max-width:70ch}

/* dialogs / details */
.dlg{border:1px solid var(--line);border-radius:12px;padding:24px;width:min(460px,92vw);box-shadow:0 30px 60px -20px #0005}
.dlg::backdrop{background:#1a1f2b66}
.co-edit summary{cursor:pointer;display:flex;align-items:center;gap:6px;list-style:none}
.co-edit summary::-webkit-details-marker{display:none}
.co-edit[open] summary{margin-bottom:16px}
.co-edit{border-left:4px solid var(--c)}
form.inline{display:flex;gap:6px}
form.inline input{width:150px}

/* login */
.login{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:36px;width:min(400px,100%);display:flex;flex-direction:column;gap:14px}
.login-card h1{margin-top:6px}
.login-card p{margin:-8px 0 6px;font-size:13.5px}
.login-card label{display:flex;flex-direction:column;gap:5px;font-size:13.5px;font-weight:500}

@media (max-width:900px){
  .shell{grid-template-columns:1fr}
  .side{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;gap:12px;padding:14px 16px}
  .side nav{flex-direction:row;flex-wrap:wrap}
  .side-cos{display:none}
  .side-user{margin:0;width:100%}
  .main{padding:22px 16px 48px}
  .kpis{grid-template-columns:1fr}
  .kpis>div+div{border-left:0;border-top:1px solid var(--line)}
  .grid2,.grid3,.two{grid-template-columns:1fr}
  .grid3 .span2{grid-column:auto}
  .lines-head{display:none}
  .line{grid-template-columns:1fr 1fr 1fr 28px;padding-bottom:10px;border-bottom:1px solid var(--line)}
  .line textarea{grid-column:1/-1}
  .sheet{padding:28px 20px}
  .sheet-top{flex-direction:column}
  .dual{grid-template-columns:1fr}
  .dual .eur{border-left:0;border-top:1px solid var(--line)}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* v2 */
.ph-sub{color:var(--muted);font-size:14px;margin-top:4px}
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);margin:4px 0 20px;overflow-x:auto}
.tabs a{font-weight:500;font-size:14.5px;padding:10px 14px;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;display:flex;gap:7px;align-items:center}
.tabs a.on{color:var(--ink);border-bottom-color:var(--ink)}
.tabs .cnt{font-size:12px;background:var(--graybg);border-radius:999px;padding:0 7px;color:var(--ink2)}
.kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px 28px}
.kv small{display:block;color:var(--muted);font-size:12.5px}
.kv b{font-weight:500}
.issuer-sum{display:grid;border:1px solid var(--line);border-radius:10px;background:var(--surface);margin-bottom:16px;overflow:hidden}
.issuer-sum>div{padding:14px 18px;border-top:3px solid var(--c)}
.issuer-sum>div+div{border-left:1px solid var(--line)}
.issuer-sum small{color:var(--muted);font-size:13px;display:block}
.issuer-sum b{font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}
.issuers{display:inline-flex;gap:4px}
.issuers i{width:20px;height:20px;border-radius:5px;display:inline-grid;place-items:center;font-size:10px;font-weight:700;color:#fff;font-style:normal}
.issuers i.off{opacity:.18}
.docs{display:grid;grid-template-columns:210px 1fr;gap:16px;align-items:start}
.cats{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:8px;display:flex;flex-direction:column}
.cats a{font-size:14px;text-decoration:none;border-radius:7px;padding:8px 10px;color:var(--ink2);display:flex;justify-content:space-between}
.cats a:hover{background:#f8f9fb}
.cats a.on{background:var(--graybg);color:var(--ink);font-weight:600}
.cats small{color:var(--muted);font-variant-numeric:tabular-nums}
.sp-path{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:12px;flex-wrap:wrap}
.upload{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:14px}
.drop{border:1.5px dashed var(--line2);border-radius:8px;padding:16px;text-align:center;color:var(--muted);font-size:14px;margin-bottom:12px}
.drop.hot{border-color:var(--focus);background:var(--bluebg);color:var(--blue)}
.upload-opts{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.upload-opts label{display:flex;flex-direction:column;gap:4px;font-size:13px;font-weight:500;color:var(--ink2)}
.upload-opts select,.upload-opts input{width:auto;min-width:160px}
.fname{display:flex;align-items:center;gap:10px}
.fname small{display:block;color:var(--muted);font-size:12.5px}
.ficon{display:inline-grid;place-items:center;width:30px;height:34px;border-radius:5px;font-size:9px;font-weight:700;color:#fff;background:#626a78;flex:none}
.ficon.e-pdf{background:#b42318}.ficon.e-docx,.ficon.e-doc{background:#1d4ed8}.ficon.e-xlsx,.ficon.e-xls{background:#0f7b4a}
.nowrap{white-space:nowrap}
.qr{display:grid;place-items:center;padding:8px;background:#fff;border-radius:10px;border:1px solid var(--line)}
.qr svg{width:200px;height:200px}
.secret{font-size:13px;word-break:break-all;background:var(--graybg);padding:2px 6px;border-radius:4px}
.otp-input{font-size:22px;letter-spacing:.3em;text-align:center;font-variant-numeric:tabular-nums}
.small{font-size:13px}
@media (max-width:900px){.docs{grid-template-columns:1fr}.issuer-sum{grid-template-columns:1fr!important}.issuer-sum>div+div{border-left:0;border-top:1px solid var(--line)}}

.inline-del{display:inline;margin:0}.link.danger{color:var(--err)}
.attach{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink2)}
.note.warn{border-left-color:var(--amber);background:var(--amberbg);color:var(--ink);margin-bottom:16px}
.numbering{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}