*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Arial,sans-serif;background:#f3f5f9;color:#1d2433;font-size:14px}
header{background:#1f4e79;color:#fff;padding:12px 20px;display:flex;justify-content:space-between;align-items:center}
header h1{font-size:18px;margin:0}
header a{color:#cfe2ff}
main{max-width:1000px;margin:20px auto;padding:0 16px}
.card{background:#fff;border-radius:8px;box-shadow:0 1px 3px #0002;padding:20px;margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
label{display:block;font-weight:600;margin-bottom:4px;font-size:13px}
label .req{color:#c00}
input,select,textarea{width:100%;padding:8px 10px;border:1px solid #c5ccd8;border-radius:6px;font:inherit;background:#fffbea}
input:focus,select:focus,textarea:focus{outline:2px solid #2f6fb3;border-color:#2f6fb3}
table.items{width:100%;border-collapse:collapse}
table.items th{background:#d9e1f2;padding:6px;text-align:left;font-size:13px}
table.items td{padding:4px}
.btn{background:#1f4e79;color:#fff;border:0;border-radius:6px;padding:9px 18px;font:inherit;cursor:pointer}
.btn.sec{background:#e4e9f2;color:#1d2433}
.btn.red{background:#b42318}
.btn.sm{padding:4px 10px;font-size:13px}
.total{text-align:right;font-size:16px;margin-top:8px}
.muted{color:#667085;font-size:13px}
.err{background:#fde8e8;color:#9b1c1c;padding:10px;border-radius:6px;display:none;margin-bottom:12px}
.ok{background:#e3f6e8;color:#14532d;padding:14px;border-radius:6px}
.hint{background:#eef4ff;border-left:4px solid #2f6fb3;padding:10px 14px;border-radius:4px;margin-bottom:16px;font-size:13px}
.tabs{display:flex;gap:6px;margin-bottom:12px}
.tabs button.active{background:#1f4e79;color:#fff}
.list{width:100%;border-collapse:collapse;background:#fff}
.list th,.list td{border-bottom:1px solid #e4e7ec;padding:7px 8px;text-align:left;font-size:13px;vertical-align:top}
.list th{background:#f2f4f7;position:sticky;top:0}
.list td.r,.list th.r{text-align:right}
.badge{padding:2px 8px;border-radius:10px;font-size:12px;white-space:nowrap}
.b-Chờ{background:#fff4d6}.b-Đã{background:#e3f6e8}.b-Từ{background:#fde8e8}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px}
.toolbar select,.toolbar input{width:auto;background:#fff}

/* ===== Phiếu: sao chép style từ Google Sheet gốc (DNTT RD/UP.html) ===== */
.dnt{table-layout:fixed;border-collapse:separate;border-spacing:0;width:680px}
.dnt td{font-family:Arial,sans-serif;font-size:10pt;color:#000;vertical-align:bottom;padding:0 3px;overflow:hidden;background:#fff}
.dnt .nw{white-space:nowrap;overflow:visible}
.dnt .s0{text-align:left;font-size:11pt;white-space:nowrap}
.dnt .s1{text-align:left;font-weight:bold;vertical-align:middle;white-space:nowrap}
.dnt .s1b{text-align:left;font-weight:bold;font-family:Calibri,Arial;font-size:11pt}
.dnt .s2{text-align:center;font-weight:bold;vertical-align:middle}
.dnt .s3{text-align:left;font-size:8pt;vertical-align:top;white-space:nowrap}
.dnt .s4{text-align:center;font-style:italic;font-size:8pt;vertical-align:middle}
.dnt .s7{text-align:right;vertical-align:middle;white-space:nowrap}
.dnt .s8{border-bottom:1px dashed #000;text-align:left;font-size:11pt;vertical-align:middle}
.dnt .s9{text-align:center;font-weight:bold;font-size:18pt;vertical-align:middle}
.dnt .s11{font-size:12pt}
.dnt .s12{border-bottom:1px dashed #000;text-align:center;font-style:italic;font-size:12pt;vertical-align:middle}
.dnt .s15{text-align:left;font-size:11pt;vertical-align:middle;white-space:nowrap}
.dnt .s18{border-bottom:1px dashed #000;text-align:left;font-size:11pt;vertical-align:middle}
.dnt .s22{text-align:left;font-size:11pt;vertical-align:middle;white-space:nowrap}
.dnt .s26{border-bottom:1px solid #000;text-align:center;font-style:italic;color:#c00000;vertical-align:middle;white-space:nowrap}
.dnt .s30{border-bottom:1px solid #000;border-right:1px solid #000;background:#d9e1f2;text-align:center;font-weight:bold;font-size:12pt;vertical-align:middle}
.dnt tr td.s30:first-child,.dnt tr td.s31:first-child,.dnt tr td.s36:first-child{border-left:1px solid #000}
.dnt .s31{border-bottom:1px solid #000;border-right:1px solid #000;text-align:center;vertical-align:middle}
.dnt .s32{border-bottom:1px solid #000;border-right:1px solid #000;text-align:left;vertical-align:middle;white-space:normal;word-wrap:break-word}
.dnt .s35{border-bottom:1px solid #000;border-right:1px solid #000;text-align:right;vertical-align:middle;white-space:nowrap}
.dnt .s36{border-bottom:1px solid #000;border-right:1px solid #000;text-align:center;font-weight:bold;font-size:12pt;vertical-align:middle}
.dnt .s37{border-bottom:1px solid #000;border-right:1px solid #000;text-align:right;font-weight:bold;font-size:12pt;vertical-align:middle;white-space:nowrap}
.dnt .s38{text-align:left;font-style:italic;font-size:12pt;vertical-align:middle}
.dnt .s39{text-align:left;font-size:12pt;vertical-align:middle;white-space:nowrap}
.dnt .s40{border-bottom:1px dashed #000;text-align:left;font-size:12pt;vertical-align:middle}
.dnt .s41{font-size:12pt}
.dnt .s42{text-align:center;font-weight:bold;font-size:12pt;vertical-align:middle}
.dnt .s43{text-align:center;font-style:italic;vertical-align:middle}
.dnt td.y{background:#fff2cc}
.dnt .in{width:100%;border:0;background:transparent;font:inherit;padding:2px 0;outline:none;resize:none;border-radius:0}
.dnt .in:focus{background:#fff8d6;box-shadow:inset 0 0 0 2px #2f6fb3}
.dnt textarea.in{height:36px;line-height:16px}
.dnt .chk{display:flex;gap:4px;align-items:center;cursor:pointer;font-weight:normal;margin:0;font-size:11pt}
.dnt .chk input{width:auto;margin:0}
.dnt .bad{box-shadow:inset 0 0 0 2px #e02424!important}
.dnt .sigcell{vertical-align:middle;text-align:center}
.sigwrap{position:relative;width:226px;height:104px;margin:0 auto;border:1.5px dashed #2f6fb3;border-radius:4px;background:#f5f9ff}
#sigPad{width:226px;height:104px;touch-action:none;cursor:crosshair;display:block}
.sighint{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#8aa4c8;font-style:italic;pointer-events:none}
.sigimg{max-width:226px;max-height:104px;display:block;margin:0 auto}
.modal{position:fixed;inset:0;background:#0008;display:none;align-items:flex-start;justify-content:center;overflow:auto;padding:20px 8px;z-index:9}
.modal.show{display:flex}
.modal .box{background:#f3f5f9;border-radius:8px;padding:14px;max-width:100%}
.modal .bar{display:flex;gap:8px;justify-content:flex-end;margin-top:12px;flex-wrap:wrap}
.sheetwrap{overflow-x:auto;padding-bottom:4px}
/* ===== Trang A4 (210 x 297mm) ===== */
.a4{background:#fff;width:210mm;height:297mm;padding:12mm 15mm;margin:0 auto 16px;box-shadow:0 1px 6px #0003;overflow:hidden;position:relative}
.dnin{position:relative;width:680px;margin:0 auto}
.dnlogo{position:absolute;left:0;top:0;object-fit:contain;z-index:1}
.dn.lr .dnt tr:nth-child(-n+3) td.s1,.dn.lr .dnt td.s3{padding-left:40px}
.att{display:flex;flex-direction:column}
.attcap{font:italic 11px Arial;color:#555;margin-bottom:4mm}
.attimg{flex:1;display:flex;align-items:center;justify-content:center;min-height:0}
.attimg img{max-width:100%;max-height:100%;object-fit:contain}
.pages{overflow-x:auto;padding:4px}
#printArea{display:none}
@media print{
  @page{size:A4;margin:0}
  html,body{background:#fff;margin:0}
  body>*:not(#printArea){display:none!important}
  #printArea{display:block}
  .a4{margin:0;box-shadow:none;page-break-after:always;break-after:page}
  .dnt td,.att img{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}

/* Kéo thả chứng từ */
.drop{border:2px dashed #9fb3cf;border-radius:10px;padding:26px 16px;text-align:center;cursor:pointer;background:#f8fafd;color:#334;transition:.15s}
.drop:hover,.drop:focus,.drop.over{border-color:#2f6fb3;background:#eef4ff;outline:none}
.dz-ico{font-size:24px;color:#2f6fb3;margin-bottom:4px}
.flist{list-style:none;padding:0;margin:12px 0 0}
.flist li{display:flex;align-items:center;gap:10px;padding:8px;border:1px solid #e4e7ec;border-radius:8px;margin-bottom:6px;background:#fff}
.flist img,.flist .pdf{width:44px;height:44px;object-fit:cover;border-radius:4px;flex:none}
.flist .pdf{display:flex;align-items:center;justify-content:center;background:#fde8e8;color:#b42318;font-weight:700;font-size:12px}
.flist .fn{flex:1;min-width:0}.flist .fn div:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Lỗi validate dạng danh sách */
.err ul{margin:6px 0 0;padding-left:18px}.err li{margin:2px 0}
.err a{color:inherit;text-decoration:underline;cursor:pointer}
.dnt .bad,.card.bad{box-shadow:inset 0 0 0 2px #e02424!important;background:#fff0f0!important}

/* Xem trước thu nhỏ vừa màn hình */
.pvscale{transform-origin:top left}

/* ===== Mobile ===== */
@media (max-width:820px){
  main{margin:0 auto!important;padding:10px!important}
  .card{padding:14px}
  select,input,textarea{font-size:16px}
  .a4.edit{width:100%;height:auto;padding:14px 12px;margin:0;box-shadow:0 1px 3px #0002;border-radius:8px}
  .edit .dnin{width:100%}
  .edit .dnlogo{position:static;display:block;margin-bottom:6px;max-width:110px;height:auto!important}
  .edit .dnt,.edit .dnt tbody{display:block;width:100%}
  .edit .dnt colgroup{display:none}
  .edit .dnt tr{display:flex;flex-wrap:wrap;height:auto!important;width:100%}
  .edit .dnt td{display:block;width:100%;white-space:normal;padding:2px 0;border:0!important;overflow:visible}
  .edit .dnt td:empty{display:none}
  .edit .dnt td.s2,.edit .dnt td.s4,.edit .dnt td.s7,.edit .dnt td.s8,.edit .dnt tr td.s41{display:none}
  .edit .dn.lr td,.edit.lr .dnt td{padding-left:0!important}
  .edit .dnt td.s9{font-size:17pt;padding:10px 0 2px;text-align:left}
  .edit .dnt td.s12{border:0!important;text-align:left;font-size:11pt;color:#555}
  .edit .dnt td.s15,.edit .dnt td.s39{font-weight:600;font-size:13px;padding-top:12px;color:#333}
  .edit .dnt td.y{background:transparent}
  .edit .dnt .in{background:#fffbea;border:1px solid #d9cf9f!important;border-radius:8px;padding:10px;min-height:44px;font-size:16px}
  .edit .dnt textarea.in{height:auto;min-height:64px;line-height:1.4}
  .edit .dnt td.s22{width:auto;flex:1 1 30%;padding:4px 2px}
  .edit .dnt .chk{border:1px solid #d9cf9f;border-radius:8px;padding:10px 8px;background:#fffbea;font-size:14px;justify-content:center}
  .edit .dnt td.s26{font-size:12px;padding-top:4px}
  /* Bảng chi phí -> thẻ từng dòng */
  .edit .dnt tr:has(td.s30){display:none}
  .edit .dnt tr:has(td.s31){margin-top:10px;padding:10px;border:1px solid #e4e7ec!important;border-radius:10px;background:#fafbfc;gap:6px}
  .edit .dnt td.s31{font-weight:700;text-align:left}
  .edit .dnt td.s31::before{content:"Dòng chi phí "}
  .edit .dnt td.s35 .in{text-align:right}
  .edit .dnt td.s35::before{content:"Số tiền (VNĐ)";display:block;font-size:12px;color:#666;margin-bottom:2px}
  .edit .dnt tr:has(td.s36){margin-top:12px;justify-content:space-between;font-size:15px}
  .edit .dnt td.s36,.edit .dnt td.s37{width:auto;font-size:15px}
  .edit .dnt td.s38{font-size:12pt}
  .edit .dnt tr:has(td.s42),.edit .dnt tr:has(td.s43){display:none}
  .drop{padding:22px 12px}
  #f > .btn[type=submit]{width:100%;padding:14px;font-size:16px;margin-bottom:24px}
  .modal{padding:8px 4px}
  .modal .box{padding:8px;width:100%}
  .modal .bar{position:sticky;bottom:0;background:#f3f5f9;padding:8px 0}
  .modal .bar .btn{flex:1;padding:12px 6px}
  .pages{overflow:hidden;padding:0}
  .pages .a4{margin-bottom:8px}
}
@media (max-width:820px){
  .edit .dnt td.s35{text-align:left}
  .edit .dnt td.s32:nth-child(2)::before{content:"Loại chi phí";display:block;font-size:12px;color:#666;margin-bottom:2px}
  .edit .dnt td.s32:nth-child(3)::before{content:"Diễn giải";display:block;font-size:12px;color:#666;margin-bottom:2px}
}

/* Dòng chi phí: chỉ hiện dòng đang dùng (bản xem trước / in vẫn đủ 5 dòng như mẫu) */
/* desktop: luôn đủ 5 dòng như mẫu */
.dnt tr.addtr,.rmrow{display:none}
.addrow{display:block;margin:0;width:100%;padding:6px;border:1.5px dashed #9fb3cf;background:#f8fafd;color:#1f4e79;font-weight:600}
.addrow:hover{background:#eef4ff;border-color:#2f6fb3}
.dnt td.s31{position:relative}
.rmrow{position:absolute;right:1px;top:1px;border:0;background:transparent;color:#b42318;cursor:pointer;font-size:11px;padding:1px 3px;line-height:1;opacity:.55}
.rmrow:hover{opacity:1}
@media (max-width:820px){
  .addrow{width:100%;padding:12px}
  .rmrow{position:static;float:right;font-size:13px;opacity:1;border:1px solid #f1c0bd;border-radius:6px;padding:4px 10px;background:#fff}
}

.dnt tr.addtr td{border:0!important;background:transparent!important}
@media print{.addtr{display:none}}
@media (max-width:820px){.dnt tr.addtr td{padding-top:10px!important}}

@media (max-width:820px){
  .dnt tr.hidrow{display:none!important}
  .dnt tr.addtr{display:flex}
  .rmrow{display:inline-block}
}