/* ==========================================================================
   GVS Agency — Invoice Entry System
   Palette and rules are taken from the printed letterhead: excavator amber,
   the green/gold double band, and the grey of a site office.
   ========================================================================== */

:root{
  --soil:#241F19;
  --soil-2:#332C24;
  --moss:#2E5D34;
  --moss-deep:#1F4325;
  --amber:#E27A16;
  --amber-soft:#FBEEDF;
  --gold:#A9791A;
  --concrete:#E8E7E1;
  --paper:#FFFFFF;
  --line:#D8D7CE;
  --line-soft:#EAE9E2;
  --ink:#1E211C;
  --muted:#6B7065;
  --danger:#B3261E;
  --danger-soft:#FBE9E7;

  --r:6px;
  --shadow:0 1px 2px rgba(36,31,25,.08), 0 8px 24px rgba(36,31,25,.06);

  /* letterhead clearance, overwritten by invoice.js */
  --mt:45mm;
  --mb:34mm;
  --mx:12mm;
  --pt:9pt;

  --ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --doc: "Palatino Linotype", "Book Antiqua", Georgia, "Times New Roman", serif;
}

*{box-sizing:border-box;}
[hidden]{display:none !important;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--ui);
  background:var(--concrete);
  color:var(--ink);
  font-size:14px;
  line-height:1.45;
  -webkit-font-smoothing:antialiased;
}
input,select,textarea,button{font:inherit;color:inherit;}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}

/* ------------------------------- command bar ------------------------------ */
.bar{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 22px;
  background:var(--soil);
  color:#F4F1E9;
  border-bottom:3px solid var(--moss);
  box-shadow:0 2px 0 var(--gold);
}
.bar__id{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;min-width:0;}
.bar__mark{
  align-self:center;width:11px;height:22px;border-radius:2px;
  background:linear-gradient(180deg,var(--amber) 0 55%,var(--moss) 55% 100%);
  flex:none;
}
.bar__name{font-size:19px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;}
.bar__sub{font-size:12px;color:#B9B3A6;letter-spacing:.02em;}
.bar__actions{display:flex;gap:8px;flex-wrap:wrap;}

/* --------------------------------- buttons -------------------------------- */
.btn{
  border-radius:var(--r);
  padding:9px 15px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;background:transparent;cursor:pointer;
  transition:background .15s ease, color .15s ease, border-color .15s ease, transform .08s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn--fill{background:var(--amber);color:#221704;}
.btn--fill:hover{background:#F08B26;}
.btn--line{border-color:var(--line);background:var(--paper);color:var(--ink);}
.btn--line:hover{border-color:var(--moss);color:var(--moss-deep);}
.bar .btn--line{background:transparent;border-color:#5C5346;color:#F0EBE1;}
.bar .btn--line:hover{border-color:var(--amber);color:#fff;}
.btn--ghost{color:#CFC8BB;}
.btn--ghost:hover{color:#fff;background:rgba(255,255,255,.08);}
.btn--sm{padding:6px 12px;font-size:12px;}
.btn--wide{width:100%;}
.iconbtn{border:0;background:transparent;font-size:16px;cursor:pointer;padding:6px 8px;border-radius:var(--r);color:var(--muted);}
.iconbtn:hover{background:var(--line-soft);color:var(--ink);}
.linkish{border:0;background:none;padding:0;color:var(--moss-deep);text-decoration:underline;cursor:pointer;font-weight:600;}

/* -------------------------------- workspace ------------------------------- */
.work{
  display:grid;
  grid-template-columns:minmax(0,1fr) 330px;
  gap:22px;
  max-width:1400px;
  margin:0 auto;
  padding:22px;
  align-items:start;
}
.form{display:flex;flex-direction:column;gap:18px;min-width:0;}

.card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:18px 20px 20px;
  box-shadow:var(--shadow);
}
.card__head{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding-bottom:10px;margin-bottom:16px;
  border-bottom:2px solid var(--moss);
  box-shadow:0 2px 0 var(--gold);
}
.card__title{margin:0;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--moss-deep);}
.card__note{font-size:12px;color:var(--muted);}

.rule{height:1px;background:var(--line-soft);margin:16px 0;}

.grid{display:grid;gap:14px;}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr));}
.form .grid + .grid,
.form .grid + .field,
.form .field + .grid,
.form .field + .field{margin-top:14px;}

/* --------------------------------- fields --------------------------------- */
.field{display:flex;flex-direction:column;gap:5px;min-width:0;}
.field__label{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);}
.field input,.field select,.field textarea{
  width:100%;
  padding:9px 11px;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:#FCFCFA;
  transition:border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.field textarea{resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--moss);
  box-shadow:0 0 0 3px rgba(46,93,52,.14);
}
.field input.is-bad,.field textarea.is-bad{border-color:var(--danger);background:var(--danger-soft);}
.field__err{display:none;font-style:normal;font-size:11.5px;color:var(--danger);font-weight:600;}
.field__err.is-on{display:block;}
.field__err--block{margin-top:8px;}
.readout{
  display:block;padding:9px 11px;border:1px dashed var(--line);border-radius:var(--r);
  background:var(--line-soft);color:var(--moss-deep);font-weight:700;
  font-variant-numeric:tabular-nums;
}
.check{display:flex;align-items:center;gap:9px;margin-top:14px;font-size:13px;color:var(--ink);cursor:pointer;}
.check input{width:16px;height:16px;accent-color:var(--moss);}
.hint{font-size:12px;color:var(--muted);}

/* segmented control */
.seg{display:flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#FCFCFA;}
.seg__btn{
  flex:1;padding:9px 8px;font-size:12px;font-weight:600;
  border:0;background:transparent;cursor:pointer;color:var(--muted);
  transition:background .15s ease,color .15s ease;
}
.seg__btn + .seg__btn{border-left:1px solid var(--line);}
.seg__btn:hover{background:var(--line-soft);}
.seg__btn.is-on{background:var(--moss);color:#F3F6EF;}

/* ------------------------------- entry table ------------------------------ */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);}
.entry{width:100%;border-collapse:collapse;min-width:960px;}
.entry thead th{
  background:var(--soil-2);color:#EDE7DB;
  font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:9px 8px;text-align:left;white-space:nowrap;
}
.entry th.c-num,.entry td.c-num{text-align:right;}
.entry tbody td{padding:6px;border-bottom:1px solid var(--line-soft);vertical-align:middle;}
.entry tbody tr:last-child td{border-bottom:0;}
.entry tbody tr:nth-child(even){background:#FAFAF7;}
.entry td.c-no{text-align:center;color:var(--muted);font-weight:700;font-size:12px;width:34px;}
.entry input{
  width:100%;padding:7px 8px;border:1px solid transparent;border-radius:4px;
  background:#fff;font-size:13px;
}
.entry input:hover{border-color:var(--line);}
.entry input:focus{outline:none;border-color:var(--moss);box-shadow:0 0 0 2px rgba(46,93,52,.16);}
.entry input.is-bad{border-color:var(--danger);background:var(--danger-soft);}
.entry .num input{text-align:right;font-variant-numeric:tabular-nums;}
.entry .calc{
  display:block;text-align:right;padding:7px 8px;font-variant-numeric:tabular-nums;
  font-weight:600;color:var(--moss-deep);white-space:nowrap;
}
.c-desc{min-width:230px;}
.c-hsn{width:105px;}
.c-unit{width:92px;}
.c-num{width:104px;}
.c-del{width:40px;}
.rmv{
  border:0;background:transparent;color:var(--muted);cursor:pointer;
  font-size:15px;line-height:1;padding:6px 8px;border-radius:4px;
}
.rmv:hover{background:var(--danger-soft);color:var(--danger);}
.rowtools{display:flex;align-items:center;gap:14px;margin-top:12px;flex-wrap:wrap;}

/* ------------------------------ summary slip ------------------------------ */
.slip{
  position:sticky;top:86px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:0 0 var(--r) var(--r);
  box-shadow:var(--shadow);
  padding:20px;
  overflow:hidden;
}
.slip__perf{
  position:absolute;inset:0 0 auto 0;height:8px;
  background:
    repeating-linear-gradient(90deg,var(--soil) 0 5px,transparent 5px 11px);
  opacity:.5;
}
.slip__title{
  margin:6px 0 14px;font-size:11px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);
}
.slip__rows{margin:0;display:flex;flex-direction:column;gap:8px;}
.slip__row{display:flex;justify-content:space-between;gap:10px;font-size:13px;}
.slip__row dt{color:var(--muted);}
.slip__row dd{margin:0;font-variant-numeric:tabular-nums;font-weight:600;}
.slip__row--strong dt,.slip__row--strong dd{color:var(--ink);font-weight:700;}
.slip__band{height:6px;margin:14px 0;background:linear-gradient(180deg,var(--moss) 0 60%,var(--gold) 60% 100%);border-radius:1px;}
.slip__total{display:flex;justify-content:space-between;align-items:baseline;gap:10px;}
.slip__total span{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);}
.slip__total strong{font-size:26px;font-variant-numeric:tabular-nums;letter-spacing:-.01em;color:var(--moss-deep);}
.slip__words{
  margin:10px 0 18px;padding:9px 11px;background:var(--amber-soft);border-left:3px solid var(--amber);
  border-radius:0 4px 4px 0;font-size:12px;line-height:1.4;
}
.slip__acts{display:flex;flex-direction:column;gap:8px;}
.slip__pair{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.slip__foot{margin:14px 0 0;font-size:11.5px;color:var(--muted);line-height:1.5;}

/* --------------------------------- drawer --------------------------------- */
.drawer{position:fixed;inset:0;z-index:60;background:rgba(36,31,25,.45);display:flex;justify-content:flex-end;}
.drawer__panel{
  width:min(460px,100%);height:100%;background:var(--paper);
  display:flex;flex-direction:column;box-shadow:-8px 0 30px rgba(0,0,0,.2);
  animation:slide .22s ease;
}
@keyframes slide{from{transform:translateX(28px);opacity:.4;}to{transform:none;opacity:1;}}
.drawer__head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-bottom:2px solid var(--moss);box-shadow:0 2px 0 var(--gold);
}
.drawer__head h2{margin:0;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--moss-deep);}
.drawer__body{padding:20px;overflow-y:auto;flex:1;}
.drawer__body .grid{margin-bottom:14px;}
.drawer__body .field + .field{margin-top:14px;}
.drawer__sub{margin:0 0 6px;font-size:13px;font-weight:700;}
.drawer__hint{margin:0 0 14px;font-size:12px;color:var(--muted);line-height:1.5;}
.drawer__foot{padding:16px 20px;border-top:1px solid var(--line);}

/* --------------------------------- overlay -------------------------------- */
.overlay{position:fixed;inset:0;z-index:50;background:#4A443C;display:flex;flex-direction:column;}
.overlay__bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:11px 20px;background:var(--soil);color:#F1ECE3;
  border-bottom:2px solid var(--gold);
}
.overlay__label{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#B9B3A6;}
.overlay__acts{display:flex;gap:8px;}
.overlay__bar .btn--line{background:transparent;border-color:#5C5346;color:#F0EBE1;}
.overlay__scroll{flex:1;overflow:auto;padding:26px;display:flex;justify-content:center;align-items:flex-start;}

/* --------------------------------- A4 sheet ------------------------------- */
.sheet{
  width:210mm;min-height:297mm;
  background:#fff;color:#000;
  box-shadow:0 10px 40px rgba(0,0,0,.35);
  display:flex;flex-direction:column;
  font-size:var(--pt);
  font-family:var(--ui);
}
.sheet__zone{
  flex:none;
  display:flex;align-items:center;justify-content:center;
  border:1px dashed #C9C4B8;background:repeating-linear-gradient(135deg,#FAF8F3 0 8px,#F2EFE7 8px 16px);
  color:#9A9384;font-size:10px;letter-spacing:.14em;text-transform:uppercase;
}
.sheet__zone--top{height:var(--mt);}
.sheet__zone--bottom{height:var(--mb);}
.sheet__body{flex:1;padding:0 var(--mx);}

/* while html2pdf rasterises: the PDF's own margins provide the clearance */
.sheet.is-pdf{min-height:0;box-shadow:none;}
.sheet.is-pdf .sheet__zone{display:none;}
.sheet.is-pdf .sheet__body{padding:0;}
.sheet.is-pdf.is-sim .sheet__zone{display:block;}

/* letterhead replica, only used when printing on plain paper */
.lhsim{display:none;width:100%;padding:0 var(--mx);text-align:center;}
.sheet.is-sim .sheet__zone{background:#fff;border:0;height:auto;padding:6mm 0 4mm;display:block;}
.sheet.is-sim .sheet__zone > span{display:none;}
.sheet.is-sim .lhsim{display:block;}
.lhsim__name{font-family:var(--doc);font-size:26pt;font-weight:700;letter-spacing:.06em;color:#8A6508;margin:0;}
.lhsim__tag{margin:2px 0 0;font-size:10.5pt;font-weight:700;color:#3D5A2A;}
.lhsim__meta{margin:2px 0 0;font-size:8pt;color:#333;}
.lhsim__band{height:5px;margin-top:5px;background:linear-gradient(180deg,#2E5D34 0 55%,#A9791A 55% 100%);}
.lhsim--foot .lhsim__band{margin:0 0 5px;}

/* ------------------------- printed invoice content ------------------------ */
.inv__title{
  text-align:center;font-family:var(--doc);
  font-size:15pt;font-weight:700;letter-spacing:.34em;text-transform:uppercase;
  margin:0;padding-bottom:3px;
}
.inv__gst{text-align:center;font-size:8.5pt;letter-spacing:.04em;margin:1px 0 0;}
.inv__band{height:4px;margin:5px 0 8px;background:linear-gradient(180deg,#2E5D34 0 55%,#A9791A 55% 100%);}

.inv__parties{display:flex;border:1px solid #000;margin-bottom:6px;}
.inv__party{flex:1;padding:6px 8px;}
.inv__party + .inv__party{border-left:1px solid #000;}
.inv__ptitle{
  font-size:7.5pt;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:#2E5D34;margin:0 0 3px;
}
.inv__pname{font-weight:700;font-size:10pt;margin:0 0 2px;}
.inv__paddr{margin:0;line-height:1.35;white-space:pre-line;}
.inv__meta{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;}
.inv__meta dt{color:#444;}
.inv__meta dd{margin:0;font-weight:700;text-align:right;font-variant-numeric:tabular-nums;}

table.inv__items{width:100%;border-collapse:collapse;border:1px solid #000;}
table.inv__items th,table.inv__items td{border:1px solid #7A7A7A;padding:3.5px 5px;vertical-align:top;}
table.inv__items thead th{
  background:#EDEFE9;border-color:#000;
  font-size:7.5pt;font-weight:700;letter-spacing:.06em;text-transform:uppercase;text-align:left;
}
table.inv__items .r{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap;}
table.inv__items .c{text-align:center;}
table.inv__items tbody tr td:first-child{text-align:center;color:#444;}
table.inv__items tfoot td{border-color:#000;font-weight:700;background:#F6F6F2;}

.inv__lower{display:flex;gap:8px;margin-top:6px;align-items:stretch;}
.inv__left{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0;}
.inv__right{width:74mm;flex:none;border:1px solid #000;}
.inv__box{border:1px solid #000;padding:5px 7px;}
.inv__box h4{margin:0 0 3px;font-size:7.5pt;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#2E5D34;}
.inv__box p{margin:0;line-height:1.4;white-space:pre-line;}
.inv__words{font-weight:700;}

table.inv__totals{width:100%;border-collapse:collapse;}
table.inv__totals td{padding:3.5px 7px;border-bottom:1px solid #C9C9C9;}
table.inv__totals td:last-child{text-align:right;font-variant-numeric:tabular-nums;font-weight:700;white-space:nowrap;}
table.inv__totals tr.grand td{
  border-top:2px solid #000;border-bottom:0;background:#EDEFE9;
  font-size:11pt;font-weight:700;padding:6px 7px;
}

table.inv__hsn{width:100%;border-collapse:collapse;border:1px solid #000;margin-top:6px;font-size:7.5pt;}
table.inv__hsn th,table.inv__hsn td{border:1px solid #7A7A7A;padding:3px 5px;}
table.inv__hsn thead th{background:#EDEFE9;text-transform:uppercase;letter-spacing:.05em;}
table.inv__hsn .r{text-align:right;font-variant-numeric:tabular-nums;}
table.inv__hsn tfoot td{font-weight:700;background:#F6F6F2;}

.inv__sign{
  display:flex;justify-content:space-between;align-items:flex-end;gap:12px;
  margin-top:8px;padding-top:4px;
}
.inv__declare{max-width:96mm;font-size:7.5pt;color:#333;line-height:1.4;}
.inv__signbox{text-align:center;min-width:60mm;}
.inv__signfor{font-weight:700;margin:0 0 14mm;}
.inv__signname{margin:0;font-weight:700;border-top:1px solid #000;padding-top:3px;}
.inv__signrole{margin:0;font-size:7.5pt;color:#444;}

/* --------------------------------- toast ---------------------------------- */
.toast{
  position:fixed;left:50%;bottom:26px;transform:translateX(-50%);
  z-index:80;padding:11px 18px;border-radius:var(--r);
  background:var(--soil);color:#F5F1E8;font-size:13px;font-weight:600;
  box-shadow:0 8px 24px rgba(0,0,0,.28);border-left:4px solid var(--amber);
  max-width:min(520px,92vw);
}
.toast--bad{border-left-color:var(--danger);}
.toast--ok{border-left-color:#4C8A3F;}

/* -------------------------------- responsive ------------------------------ */
@media (max-width:1180px){
  .work{grid-template-columns:1fr;}
  .slip{position:static;}
}
@media (max-width:760px){
  .bar{flex-direction:column;align-items:flex-start;gap:10px;}
  .bar__actions{width:100%;}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr;}
  .work{padding:14px;}
  .card{padding:14px;}
  .overlay__scroll{padding:10px;}
  .sheet{transform-origin:top center;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* ---------------------------------- print --------------------------------- */
@media print{
  html,body{background:#fff !important;}
  body > *{display:none !important;}
  body > .overlay{
    display:block !important;
    position:static;inset:auto;background:#fff;
  }
  .overlay__bar{display:none !important;}
  .overlay__scroll{display:block !important;overflow:visible;padding:0;}
  .sheet{
    width:auto;min-height:0;box-shadow:none;margin:0;display:block;
    font-size:var(--pt);
  }
  .sheet__body{padding:0;}
  .sheet__zone{display:none !important;}
  .sheet.is-sim .sheet__zone{display:block !important;padding:0 0 4mm;}
  .sheet.is-sim .sheet__zone--bottom{padding:4mm 0 0;}
  .sheet.is-sim .lhsim{padding:0;}
  table.inv__items thead{display:table-header-group;}
  table.inv__items tr,.inv__lower,.inv__sign,.inv__box{break-inside:avoid;page-break-inside:avoid;}
}