:root{
  --navy:#0B2545;--blue:#1E6FD9;--gold:#C9A227;--ink:#0F172A;--text:#334155;--muted:#64748B;
  --line:#E2E8F0;--bg:#F4F6FA;--card:#fff;--ok:#15803D;--warn:#B45309;--bad:#B91C1C;
  --r:12px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:Inter,'Segoe UI',Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14.5px;line-height:1.5}
a{color:var(--blue);text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}

/* top bar */
.topbar{background:var(--navy);color:#fff;border-bottom:3px solid var(--gold)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px}
.brand b{font-weight:700;letter-spacing:.3px}
.mono{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:8px;background:#fff;color:var(--navy);font:700 19px Georgia,serif;box-shadow:inset 0 -3px 0 var(--gold)}
.topbar nav{display:flex;gap:4px;flex-wrap:wrap}
.topbar nav a{color:#CBD5E1;padding:8px 11px;border-radius:8px;font-weight:500}
.topbar nav a:hover,.topbar nav a.on{color:#fff;background:rgba(255,255,255,.08)}
.topbar nav a.cta{background:var(--blue);color:#fff}
.topbar nav a.cta:hover{background:#1A5FBA}

main{padding:26px 16px 40px}
h1{font-size:22px;color:var(--ink);margin:0 0 4px}
.sub{color:var(--muted);margin:0 0 20px}
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.head-row .sub{margin:0}

.flash{padding:12px 14px;border-radius:10px;margin-bottom:16px;border:1px solid}
.flash-ok{background:#F0FDF4;border-color:#BBF7D0;color:var(--ok)}
.flash-err{background:#FEF2F2;border-color:#FECACA;color:var(--bad)}
.flash-info{background:#EFF6FF;border-color:#BFDBFE;color:#1D4ED8}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.stat .n{font-size:24px;font-weight:700;color:var(--ink)}
.stat .l{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}
@media (max-width:720px){.stats{grid-template-columns:repeat(2,1fr)}}

/* forms */
label{display:block;font-weight:600;color:var(--ink);font-size:13px;margin-bottom:5px}
.hint{font-weight:400;color:var(--muted)}
input[type=text],input[type=email],input[type=date],input[type=password],input[type=search],select,textarea{
  width:100%;padding:10px 12px;border:1px solid #CBD5E1;border-radius:9px;font:inherit;color:var(--ink);background:#fff}
input:focus,select:focus,textarea:focus,.editor:focus{outline:2px solid #BFDBFE;border-color:var(--blue)}
textarea{resize:vertical;min-height:84px}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:1fr 1fr 1fr}
@media (max-width:720px){.g2,.g3{grid-template-columns:1fr}}
.section-title{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);font-weight:700;margin:22px 0 10px;padding-bottom:6px;border-bottom:1px solid var(--line)}
.section-title:first-child{margin-top:0}

.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:9px;border:1px solid #CBD5E1;background:#fff;color:var(--ink);font:600 14px Inter,sans-serif;cursor:pointer;white-space:nowrap}
.btn:hover{border-color:#94A3B8}
.btn-primary{background:var(--navy);border-color:var(--navy);color:#fff}
.btn-primary:hover{background:#13345F}
.btn-blue{background:var(--blue);border-color:var(--blue);color:#fff}
.btn-blue:hover{background:#1A5FBA}
.btn-danger{color:var(--bad);border-color:#FECACA}
.btn-sm{padding:6px 10px;font-size:13px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}

/* editor */
.toolbar{display:flex;gap:4px;flex-wrap:wrap;padding:6px;border:1px solid #CBD5E1;border-bottom:0;border-radius:9px 9px 0 0;background:#F8FAFC}
.toolbar button,.toolbar select{border:1px solid transparent;background:none;padding:5px 9px;border-radius:6px;font:600 13px Inter,sans-serif;color:var(--text);cursor:pointer;width:auto}
.toolbar button:hover{background:#E2E8F0}
.toolbar .sep{width:1px;background:var(--line);margin:3px 4px}
.editor{min-height:300px;padding:14px 16px;border:1px solid #CBD5E1;border-radius:0 0 9px 9px;background:#fff;font-family:'Segoe UI',Roboto,Arial,sans-serif;font-size:14px;line-height:1.65;color:#1E293B;overflow-wrap:anywhere}
.editor p{margin:0 0 10px}
.editor:empty:before{content:attr(data-placeholder);color:#94A3B8}

/* table */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.filters input{flex:1;min-width:200px}
.filters select{width:auto}
.tbl-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r)}
table.list{width:100%;border-collapse:collapse;min-width:760px}
table.list th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);padding:12px 14px;border-bottom:1px solid var(--line);background:#F8FAFC}
table.list td{padding:12px 14px;border-bottom:1px solid #F1F5F9;vertical-align:top}
table.list tr:last-child td{border-bottom:0}
table.list tr:hover td{background:#FAFBFD}
.ref{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;color:var(--navy);font-weight:600;white-space:nowrap}
.subj{color:var(--ink);font-weight:600}
.small{font-size:12.5px;color:var(--muted)}
.empty{padding:40px;text-align:center;color:var(--muted)}

.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}
.badge-draft{background:#FEF3C7;color:var(--warn)}
.badge-issued{background:#DBEAFE;color:#1D4ED8}
.badge-sent{background:#DCFCE7;color:var(--ok)}
.badge-void{background:#FEE2E2;color:var(--bad)}
.badge-partial{background:#FEF3C7;color:var(--warn)}

/* login / verify */
.narrow{max-width:440px;margin:40px auto}
.verify-ok{border-left:4px solid var(--ok)}
.verify-bad{border-left:4px solid var(--bad)}
dl.kv{display:grid;grid-template-columns:130px 1fr;gap:8px 12px;margin:14px 0 0}
dl.kv dt{color:var(--muted)}dl.kv dd{margin:0;color:var(--ink);font-weight:600}

.foot{color:var(--muted);font-size:12px;text-align:center;padding-bottom:24px}

/* modal */
dialog{border:0;border-radius:14px;padding:0;max-width:480px;width:calc(100% - 32px);box-shadow:0 20px 60px rgba(15,23,42,.25)}
dialog::backdrop{background:rgba(15,23,42,.45)}
dialog .card{border:0}

/* tables inside the letter editor */
.editor table{width:100%;border-collapse:collapse;margin:4px 0 12px;font-size:13px}
.editor th{background:var(--navy);color:#fff;text-align:left;padding:6px 8px;font-size:11.5px;text-transform:uppercase;letter-spacing:.5px}
.editor td{border:1px solid #CBD5E1;padding:6px 8px;vertical-align:top}
.editor h4{color:var(--navy);margin:14px 0 8px;font-size:14px;letter-spacing:.4px}

/* =========================================================
   MOBILE (phones & small tablets)
   ========================================================= */
.tabbar,.mob-user,.sheet-dlg{display:none}
.sheet-dlg[open]{display:block}
@media (max-width:820px){
  body{font-size:15px}
  input[type=text],input[type=email],input[type=date],input[type=password],input[type=search],select,textarea{font-size:16px;padding:11px 12px}
  .wrap{padding:0 14px}
  main{padding:16px 14px 28px}
  h1{font-size:20px}
  .sub{margin-bottom:14px}

  /* header */
  .topbar{position:sticky;top:0;z-index:30;padding-top:env(safe-area-inset-top)}
  .topbar-in{min-height:54px;flex-wrap:nowrap}
  .desk-nav{display:none!important}
  .brand-rest{display:none}
  .brand{font-size:17px}
  .mob-user{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-weight:700}

  /* bottom tab bar */
  body.has-tabs{padding-bottom:calc(66px + env(safe-area-inset-bottom))}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;background:#fff;border-top:1px solid var(--line);
          padding:4px 6px calc(4px + env(safe-area-inset-bottom));box-shadow:0 -6px 20px rgba(15,23,42,.06)}
  .tabbar a,.tabbar button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0 4px;color:var(--muted);
          font:600 11px Inter,sans-serif;background:none;border:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
  .tabbar svg{width:24px;height:24px}
  .tabbar .on{color:var(--navy)}
  .tabbar .tab-new{flex:0 0 58px;margin-top:-22px}
  .tabbar .tab-new svg{width:54px;height:54px;padding:15px;border-radius:50%;background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(30,111,217,.35);border:4px solid #fff}
  .foot{padding-bottom:12px}

  /* bottom sheets */
  .sheet-dlg{margin:auto 0 0;max-width:none;width:100%;border-radius:18px 18px 0 0;padding:0;animation:sheetUp .22s ease-out}
  .sheet-body{padding:8px 16px calc(16px + env(safe-area-inset-bottom))}
  .sheet-grab{width:40px;height:4px;border-radius:4px;background:#CBD5E1;margin:4px auto 12px}
  .sheet-title{font-weight:700;color:var(--ink);font-size:16px;margin:0 4px 8px}
  .sheet-item{display:flex;gap:14px;align-items:center;padding:12px 6px;border-radius:12px;color:var(--ink)}
  .sheet-item:active{background:#F1F5F9}
  .sheet-item b{display:block;font-size:15.5px}
  .sheet-item small{display:block;color:var(--muted);font-size:13px}
  .si-ic{flex:none;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#F1F5F9;font-size:19px;font-weight:700;color:var(--navy)}
  .sheet-cancel{width:100%;justify-content:center;margin-top:8px;padding:13px}

  /* every other dialog becomes a bottom sheet too */
  dialog:not(.sheet-dlg){margin:auto 0 0;max-width:none;width:100%;border-radius:18px 18px 0 0;animation:sheetUp .22s ease-out}
  dialog:not(.sheet-dlg) .card{padding:18px 16px calc(18px + env(safe-area-inset-bottom))}
  dialog .actions .btn{flex:1;justify-content:center}

  /* buttons & action rows */
  .btn{padding:11px 14px}
  .head-row{align-items:stretch}
  .head-row > div:last-child:not(:first-child){display:flex;gap:8px;flex-wrap:wrap}
  .head-row > a.btn,.head-row > div:last-child > a.btn{flex:1;justify-content:center}
  .viewbar{gap:8px}
  .viewbar .meta{flex:1 1 100%}
  .viewbar > .btn,.viewbar > a.btn,.viewbar > form > .btn,.viewbar > button{flex:1 1 calc(50% - 8px);justify-content:center}
  .viewbar form[style*="contents"] .btn{flex:1 1 calc(50% - 8px);justify-content:center}
  .actions .btn{flex:1 1 auto;justify-content:center}
  form.card > .actions,form#invForm > .actions{position:sticky;bottom:calc(66px + env(safe-area-inset-bottom));z-index:5;background:#fff;
          margin:16px -16px -16px;padding:12px 16px;border-top:1px solid var(--line);border-radius:0 0 var(--r) var(--r)}
  .actions a.btn[style*="margin-left:auto"]{margin-left:0!important}

  /* cards & stats */
  .card{padding:16px}
  .stats{gap:10px}
  .stat{padding:12px}
  .stat .n{font-size:19px}
  .stat .l{font-size:10.5px}
  .filters{gap:8px}
  .filters input{flex:1 1 100%;min-width:0}
  .filters select{flex:1}

  /* lists → cards */
  .tbl-wrap{background:none;border:0;overflow:visible}
  table.list{min-width:0!important;display:block}
  table.list thead{display:none}
  table.list tbody{display:flex;flex-direction:column;gap:10px}
  table.list tr{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
  table.list tr:hover td{background:none}
  table.list td{display:block;padding:0;border:0!important;min-width:0}
  table.list td[data-label]::before{content:attr(data-label);display:block;font-size:10.5px;text-transform:uppercase;letter-spacing:.6px;color:#94A3B8;font-weight:600;margin-bottom:1px}
  table.list td:last-child{grid-column:1/-1;display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
  table.list td:last-child::before{display:none}
  table.list td:last-child .btn,table.list td:last-child form{flex:1}
  table.list td:last-child form .btn{width:100%;justify-content:center}
  table.list td:last-child .btn{justify-content:center}
  table.list td:last-child:empty{display:none}
  table.list .amtc{text-align:left!important}
  .side table.list tr,.card table.list tr{border-color:#EEF2F7}

  /* invoice line items → stacked cards */
  .items-tbl{min-width:0!important;display:block}
  .items-tbl thead{display:none}
  .items-tbl tbody{display:flex;flex-direction:column;gap:10px}
  .items-tbl tr.it{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;border:1px solid var(--line);border-radius:12px;padding:12px;position:relative;background:#FAFBFD}
  .items-tbl td{display:block;padding:0!important;border:0!important}
  .items-tbl td[data-label]::before{content:attr(data-label);display:block;font-size:10.5px;text-transform:uppercase;letter-spacing:.5px;color:#94A3B8;font-weight:600;margin-bottom:3px}
  .items-tbl td:first-child{grid-column:1/-1;padding-right:34px!important}
  .items-tbl td.amt{grid-column:span 2;text-align:right;font-size:16px;align-self:end;padding-top:0!important}
  .items-tbl td.amt::before{text-align:right}
  .items-tbl td:last-child{position:absolute;top:6px;right:4px}
  .items-tbl td:last-child::before{display:none}
  .rm{font-size:26px}
  .bottom-grid{grid-template-columns:1fr!important}

  /* editor */
  .toolbar{position:sticky;top:57px;z-index:4;overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}
  .toolbar button{flex:none;padding:8px 11px}
  .editor{min-height:260px;padding:12px}
  .editor table{display:block;overflow-x:auto}

  /* settings */
  .set-nav{flex-direction:row!important;flex-wrap:nowrap!important;overflow-x:auto;gap:6px!important;position:sticky!important;top:54px;background:var(--bg);z-index:3;padding:6px 0}
  .set-nav a{flex:none;background:#fff;border:1px solid var(--line);border-radius:20px!important;padding:7px 12px!important;font-size:13.5px}
  dl.kv{grid-template-columns:110px 1fr}
  .money{grid-template-columns:1fr!important}
  .narrow{margin:16px auto}
}
@keyframes sheetUp{from{transform:translateY(40px);opacity:.4}to{transform:none;opacity:1}}
/* installed app (home-screen) & Android app */
.standalone .foot,.in-app .foot{display:none}
/* grid children may shrink below their content (stops wide toolbars from stretching the page) */
.grid>*,.set-grid>*,.bottom-grid>*{min-width:0}
@media (max-width:820px){
  form.card > .actions,form#invForm > .actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:10px 12px}
  form.card > .actions .btn,form#invForm > .actions .btn{padding:10px 8px;font-size:14px;min-width:0;white-space:normal;text-align:center;line-height:1.2}
  form.card > .actions > a.btn[href="index.php"],form.card > .actions > a.btn[href="billing.php"],form#invForm > .actions > a.btn[href="billing.php"]{display:none}
  form.card > .actions .btn:only-child{grid-column:1/-1}
  .head-row #tpl{width:100%!important;max-width:none!important}
  .head-row > div:last-child:not(:first-child){flex-direction:column}
}
@media (max-width:820px){ form#invForm > .actions .btn-blue{grid-column:1/-1} }
[hidden]{display:none!important}