/* =====================================================================
   It Smart Contract — Soạn thảo Hợp đồng / Biên bản / Đề nghị thanh toán
   Giao diện Fluent Design (Windows 11) — đồng bộ với It Smart CRM:
   nền Mica, điều hướng dạng NavigationView mở rộng, nội dung trên lớp
   "layer" bo góc trên-trái, điều khiển bo 4px, thẻ bo 8px.
   ===================================================================== */

:root{
  --font:"Segoe UI Variable Text","Segoe UI Variable","Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --font-display:"Segoe UI Variable Display","Segoe UI Variable","Segoe UI",-apple-system,"Helvetica Neue",Arial,sans-serif;

  --mica:linear-gradient(160deg,#e8edf5 0%,#f3f3f3 45%,#f4eff3 100%);
  --bg:#f3f3f3;
  --layer:#fbfbfb;
  --panel:#ffffff;
  --panel-2:#f6f6f6;
  --subtle:rgba(0,0,0,.037);
  --subtle-2:rgba(0,0,0,.058);
  --line:rgba(0,0,0,.0803);
  --ctl:rgba(255,255,255,.7);
  --ctl-hover:rgba(249,249,249,.5);
  --ctl-stroke:rgba(0,0,0,.0578);
  --ctl-stroke-bottom:rgba(0,0,0,.1622);
  --input-bottom:rgba(0,0,0,.4458);

  --text:#1b1b1b;
  --ink:#1b1b1b;
  --ink-2:#333333;
  --muted:#5d5d5d;
  --faint:#8a8a8a;

  --brand:#005fb8;
  --brand-hover:#1a6fc0;
  --brand-600:#004f9a;
  --brand-ink:#ffffff;
  --brand-50:#e3eef9;
  --brand-100:#d3e5f7;

  --green:#0f7b0f;  --green-50:#dff6dd;
  --amber:#9d5d00;  --amber-50:#fff4ce;
  --red:#c42b1c;    --red-50:#fde7e9;
  --ok:#0f7b0f;     --ok-bg:#dff6dd;
  --warn:#9d5d00;   --warn-bg:#fff4ce;
  --bad:#c42b1c;    --bad-bg:#fde7e9;
  --ai:#7a4fb5;     --ai-soft:#f3eefa;

  --acrylic:rgba(252,252,252,.85);
  --smoke:rgba(0,0,0,.3);
  --radius:8px;
  --radius-ctl:4px;
  --shadow-card:0 2px 4px rgba(0,0,0,.04);
  --shadow-flyout:0 8px 16px rgba(0,0,0,.14);
  --shadow-lg:0 32px 64px rgba(0,0,0,.19),0 2px 21px rgba(0,0,0,.15);
  color-scheme:light;
}

@media (prefers-color-scheme:dark){
  :root{
    --mica:linear-gradient(160deg,#1b1f27 0%,#202020 45%,#231f23 100%);
    --bg:#202020;--layer:#272727;--panel:#2b2b2b;--panel-2:#232323;
    --subtle:rgba(255,255,255,.06);--subtle-2:rgba(255,255,255,.0837);
    --line:rgba(255,255,255,.0698);
    --ctl:rgba(255,255,255,.0605);--ctl-hover:rgba(255,255,255,.0837);
    --ctl-stroke:rgba(255,255,255,.0698);--ctl-stroke-bottom:rgba(255,255,255,.0465);
    --input-bottom:rgba(255,255,255,.5442);
    --text:#ffffff;--ink:#ffffff;--ink-2:#e8e8e8;--muted:#c5c5c5;--faint:#9a9a9a;
    --brand:#60cdff;--brand-hover:#5bbfee;--brand-600:#8ad8ff;--brand-ink:#000000;
    --brand-50:#1c3647;--brand-100:#234458;
    --green:#6ccb5f;--green-50:#393d1b;
    --amber:#fce100;--amber-50:#433519;
    --red:#ff99a4;--red-50:#442726;
    --ok:#6ccb5f;--ok-bg:#393d1b;
    --warn:#fce100;--warn-bg:#433519;
    --bad:#ff99a4;--bad-bg:#442726;
    --ai:#c3a6f0;--ai-soft:#352c45;
    --acrylic:rgba(44,44,44,.86);--smoke:rgba(0,0,0,.45);
    --shadow-card:0 2px 4px rgba(0,0,0,.26);
    --shadow-flyout:0 8px 16px rgba(0,0,0,.26);
    --shadow-lg:0 32px 64px rgba(0,0,0,.37),0 2px 21px rgba(0,0,0,.37);
    color-scheme:dark;
  }
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  background-image:var(--mica);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font);
  font-size:14px;
  line-height:20px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow:hidden;
}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;font-size:inherit;color:inherit}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--text)}
::selection{background:var(--brand);color:var(--brand-ink)}
:focus-visible{outline:2px solid var(--text);outline-offset:1px;border-radius:var(--radius-ctl)}

/* ---------- scrollbars ---------- */
*{scrollbar-width:thin;scrollbar-color:rgba(128,128,128,.45) transparent}
*::-webkit-scrollbar{width:10px;height:10px}
*::-webkit-scrollbar-thumb{background:rgba(128,128,128,.4);border-radius:8px;border:2px solid transparent;background-clip:padding-box}
*::-webkit-scrollbar-thumb:hover{background:rgba(128,128,128,.6);background-clip:padding-box;border:2px solid transparent}
*::-webkit-scrollbar-track{background:transparent}

/* ---------- layout: Mica + NavigationView + layer ---------- */
.app{display:flex;height:100dvh;padding-top:8px}

.sidebar{
  width:236px;flex:0 0 236px;display:flex;flex-direction:column;
  background:transparent;color:var(--text);
  padding:2px 6px 8px;height:calc(100dvh - 8px);
}
.brand{display:flex;align-items:center;gap:10px;padding:12px 12px 14px}
.brand-mark{
  width:44px;height:44px;border-radius:8px;flex:0 0 44px;
  position:relative;display:flex;align-items:center;justify-content:center;
}
.brand-mark > img{
  width:100%;height:100%;object-fit:contain;display:block;
  filter:drop-shadow(0 1px 2px rgba(0,0,0,.16));
}
.brand-badge{
  position:absolute;right:-3px;bottom:-3px;width:12px;height:12px;border-radius:50%;
  background:#fb6542;color:#fff;border:2px solid #fff;box-sizing:content-box;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 1px 3px rgba(0,0,0,.22);
}
.brand-badge svg{width:8px;height:8px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text strong{font-size:14px;font-weight:600;color:var(--text)}
.brand-text span{font-size:11px;color:var(--muted);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.nav{padding:2px 0 8px;overflow:auto;flex:1;min-height:0}
.nav-group{padding:12px 12px 4px;color:var(--muted);font-size:12px;font-weight:600;letter-spacing:0}
.nav-item{
  display:flex;align-items:center;gap:12px;height:36px;padding:0 12px;margin:1px 0;
  border-radius:var(--radius-ctl);cursor:pointer;color:var(--text);
  font-size:14px;font-weight:400;position:relative;user-select:none;
  transition:background-color .08s;white-space:nowrap;
}
.nav-item svg{width:18px;height:18px;flex:0 0 18px;color:var(--text);opacity:.82;stroke-width:1.7}
.nav-item span{overflow:hidden;text-overflow:ellipsis}
.nav-item:hover{background:var(--subtle)}
.nav-item.active{background:var(--subtle-2);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:16px;margin-top:-8px;
  border-radius:2px;background:var(--brand);
}
.nav-item.active svg{color:var(--brand);opacity:1}
.nav-item .badge{margin-left:auto;flex:0 0 auto}

.side-foot{padding:10px 12px 6px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
.side-note{font-size:12px;line-height:16px;color:var(--muted);display:flex;align-items:center;gap:6px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side-note svg{flex:0 0 auto}
.tiny{font-size:11px;line-height:15px;color:var(--muted)}

.main{
  flex:1;min-width:0;display:flex;flex-direction:column;
  background:var(--layer);
  border:1px solid var(--line);border-right:0;border-bottom:0;
  border-top-left-radius:var(--radius);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 32px 10px;background:var(--layer);
  position:relative;z-index:30;
}
.topbar-title{min-width:0}
.topbar h1{font-family:var(--font-display);font-size:28px;line-height:36px;font-weight:600;color:var(--text);letter-spacing:0}
.crumb{font-size:12px;line-height:16px;color:var(--muted);margin-bottom:2px;display:flex;align-items:center;gap:6px}
.crumb b{font-weight:600;color:var(--muted)}
.topbar-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}

.content{padding:8px 32px 48px;flex:1;min-height:0;overflow:auto}
.content.wide{padding:0}
#view{max-width:1400px;margin:0 auto;width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  height:32px;padding:0 12px;border-radius:var(--radius-ctl);
  border:1px solid var(--ctl-stroke);border-bottom-color:var(--ctl-stroke-bottom);
  background:var(--ctl);color:var(--text);
  font-weight:400;font-size:14px;cursor:pointer;white-space:nowrap;
  transition:background-color .08s;
}
.btn:hover{background:var(--ctl-hover)}
.btn:active{background:var(--subtle);color:var(--muted);border-bottom-color:var(--ctl-stroke)}
.btn svg{width:16px;height:16px}
.btn-primary{
  background:var(--brand);border-color:rgba(255,255,255,.08);border-bottom-color:rgba(0,0,0,.4);
  color:var(--brand-ink);
}
.btn-primary:hover{background:var(--brand-hover)}
.btn-ghost{background:transparent;border-color:transparent}
.btn-ghost:hover{background:var(--subtle)}
.btn-soft{background:var(--brand-50);border-color:transparent;color:var(--brand)}
.btn-soft:hover{background:var(--brand-100)}
.btn-danger{background:var(--ctl);border-color:var(--ctl-stroke);border-bottom-color:var(--ctl-stroke-bottom);color:var(--red)}
.btn-danger:hover{background:var(--red-50)}
.btn-sm{height:26px;padding:0 9px;font-size:12px;border-radius:var(--radius-ctl)}
.btn-icon{width:32px;padding:0}
.btn-sm.btn-icon{width:26px;height:26px}
.btn[disabled]{opacity:.5;pointer-events:none}
.w100{width:100%}
.link-btn{background:none;border:0;color:var(--brand);cursor:pointer;padding:0;font-weight:600;font-size:13px}
.link-btn:hover{text-decoration:underline}
.link-btn.danger{color:var(--red)}

/* ---------- cards ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:none}
.card-pad{padding:16px 18px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}
.card-head h3{font-size:16px;line-height:22px;font-weight:600}
.card-head .sub{font-size:12px;color:var(--muted);font-weight:400;margin-top:2px}
.card-body{padding:16px 18px}
.card + .card{margin-top:12px}

.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;position:relative;overflow:hidden}
.stat .label{font-size:12px;color:var(--muted);font-weight:600;display:flex;align-items:center;gap:7px}
.stat .label svg{width:15px;height:15px;color:var(--muted);stroke-width:1.7}
.stat .value{font-family:var(--font-display);font-size:26px;line-height:34px;font-weight:600;letter-spacing:-.2px;margin-top:6px;font-variant-numeric:tabular-nums}
.stat .value small{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:0}
.stat .foot{font-size:11.5px;color:var(--muted);margin-top:4px}
.stat.accent{background:var(--brand);border-color:transparent;color:var(--brand-ink)}
.stat.accent .label,.stat.accent .foot{color:rgba(255,255,255,.85)}
.stat.accent .label svg{color:rgba(255,255,255,.9)}
.stat.accent .value{color:#fff}
@media (prefers-color-scheme:dark){
  .stat.accent{color:#000}
  .stat.accent .value{color:#000}
  .stat.accent .label,.stat.accent .foot{color:rgba(0,0,0,.72)}
  .stat.accent .label svg{color:rgba(0,0,0,.72)}
}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.row-split{display:grid;grid-template-columns:1.35fr .9fr;gap:12px;align-items:start}

/* ---------- tables ---------- */
.tbl-wrap{overflow:auto;border-radius:0 0 var(--radius) var(--radius)}
table.tbl{width:100%;border-collapse:separate;border-spacing:0;font-size:13.5px}
table.tbl th{
  text-align:left;font-size:12px;letter-spacing:0;color:var(--muted);
  font-weight:600;padding:10px 14px;background:transparent;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.tbl td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:0}
table.tbl tbody tr{transition:background-color .08s}
table.tbl tbody tr:hover{background:var(--subtle)}
table.tbl tbody tr.clickable{cursor:pointer}
table.tbl .num{font-variant-numeric:tabular-nums;font-weight:600}
table.tbl .right{text-align:right}
table.tbl .muted{color:var(--muted)}
.cell-title{font-weight:600;color:var(--text)}
.cell-sub{font-size:12px;color:var(--muted);margin-top:2px}
.doc-no{font-variant-numeric:tabular-nums;font-weight:600;color:var(--brand);font-size:12.5px;letter-spacing:.1px}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;height:20px;padding:0 8px;border-radius:999px;font-size:12px;font-weight:400;white-space:nowrap;border:1px solid transparent;line-height:18px}
.badge svg{width:12px;height:12px}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.badge.gray{background:var(--subtle);color:var(--muted)}
.badge.blue{background:var(--brand-50);color:var(--brand)}
.badge.green{background:var(--ok-bg);color:var(--ok)}
.badge.amber{background:var(--warn-bg);color:var(--warn)}
.badge.red{background:var(--bad-bg);color:var(--bad)}
.badge.purple{background:var(--ai-soft);color:var(--ai)}

/* ---------- forms ---------- */
.field{display:flex;flex-direction:column;gap:4px;min-width:0}
.field > label{font-size:12px;line-height:16px;font-weight:400;color:var(--muted);display:flex;align-items:center;gap:6px;margin:0}
.field .hint{font-size:11.5px;color:var(--muted);font-weight:400}
.input,.select,.textarea{
  width:100%;height:32px;min-height:32px;padding:5px 11px 6px;border-radius:var(--radius-ctl);
  border:1px solid var(--ctl-stroke);border-bottom:1px solid var(--input-bottom);
  background:var(--ctl);color:var(--text);outline:none;
  transition:background-color .08s,border-color .08s;
}
.textarea{height:auto;min-height:70px;padding:8px 11px;line-height:1.5;resize:vertical}
.input:hover,.select:hover,.textarea:hover{background-color:var(--ctl-hover)}
.input:focus,.select:focus,.textarea:focus{
  background-color:var(--panel);border-color:var(--ctl-stroke);border-bottom:2px solid var(--brand);
  box-shadow:none;padding-bottom:5px;
}
.textarea:focus{padding-bottom:7px}
.input::placeholder,.textarea::placeholder{color:var(--faint)}
.input.sm,.select.sm{height:28px;min-height:28px;font-size:13px;padding:0 8px 1px}
.input.right{text-align:right}
.select{
  appearance:none;padding-right:28px;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235d5d5d' stroke-width='2'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat:no-repeat;background-position:right 10px center;
}
@media (prefers-color-scheme:dark){
  .select{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23c5c5c5' stroke-width='2'><polyline points='6 9 12 15 18 9'/></svg>")}
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px}
.form-grid .full{grid-column:1 / -1}
.form-row{display:flex;gap:10px;align-items:flex-end}
.checkbox{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text);cursor:pointer;user-select:none}
.checkbox input{width:18px;height:18px;accent-color:var(--brand);margin:0}

/* segmented control */
.seg{display:inline-flex;background:var(--subtle);border:1px solid var(--line);border-radius:var(--radius-ctl);padding:3px;gap:2px}
.seg button{border:0;background:transparent;padding:5px 12px;border-radius:3px;font-size:13px;font-weight:400;color:var(--muted);cursor:pointer;position:relative}
.seg button:hover{background:var(--subtle);color:var(--text)}
.seg button.on{background:var(--panel);color:var(--text);font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.1)}
.seg button.on::after{content:"";position:absolute;left:50%;bottom:2px;width:16px;height:3px;margin-left:-8px;border-radius:2px;background:var(--brand)}

/* ---------- editor ---------- */
.editor{display:grid;grid-template-columns:minmax(0,600px) minmax(0,1fr);gap:16px;align-items:start}
.editor .form-col{min-width:0;display:flex;flex-direction:column;gap:12px}
.editor .preview-col{min-width:0;position:sticky;top:0}
.editor-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.editor-head .left{display:flex;align-items:center;gap:8px;min-width:0}
.editor-head h2{font-family:var(--font-display);font-size:20px;line-height:28px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chip{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;background:var(--subtle);color:var(--muted);font-size:12px;font-weight:400;border:1px solid var(--line)}

.section{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);box-shadow:none;overflow:hidden}
.section-head{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line);background:transparent}
.section-head .ico{width:28px;height:28px;border-radius:6px;background:var(--brand-50);color:var(--brand);display:flex;align-items:center;justify-content:center;flex:0 0 28px}
.section-head .ico svg{width:15px;height:15px;stroke-width:1.8}
.section-head h3{font-size:15px;line-height:20px;font-weight:600;flex:1}
.section-head .hint{font-size:12px;color:var(--muted);font-weight:400}
.section-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:12px}

/* item editor — mỗi dòng hàng hóa thành thẻ 2 tầng cho dễ nhập tên dài */
.items-editor{display:flex;flex-direction:column;gap:8px}
.item-card{border:1px solid var(--line);border-radius:6px;background:var(--panel-2);padding:8px 10px 9px;display:flex;flex-direction:column;gap:7px}
.item-main{display:flex;align-items:center;gap:8px;min-width:0}
.item-main .idx{font-size:11.5px;color:var(--muted);font-weight:600;width:18px;text-align:center;flex:0 0 18px}
.item-main .input{flex:1;min-width:0;background:var(--panel)}
.item-meta{display:flex;align-items:flex-end;gap:8px;flex-wrap:wrap;padding-left:26px}
.item-meta .mini{display:flex;flex-direction:column;gap:2px;font-size:11px;line-height:14px;color:var(--muted);font-weight:400}
.item-meta .mini .input{width:64px;height:28px;min-height:28px;font-size:12.5px;background:var(--panel)}
.item-meta .mini.price .input{width:110px}
.item-sum{margin-left:auto;display:flex;flex-direction:column;align-items:flex-end;gap:1px;font-size:11px;line-height:14px;color:var(--muted)}
.item-sum b{font-size:13px;line-height:18px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--text)}
.items-empty{border:1px dashed var(--line);border-radius:6px;padding:16px 12px;text-align:center;color:var(--muted);font-size:12.5px}
.items-editor .del{color:var(--faint);background:none;border:0;cursor:pointer;padding:4px;border-radius:4px;line-height:0;flex:0 0 auto}
.items-editor .del:hover{color:var(--red);background:var(--red-50)}
.items-editor .del svg{width:15px;height:15px;display:block}

/* SKU từ Google Spreadsheet */
.sheet-pick{border:1px solid var(--line);border-radius:6px;padding:9px 10px;background:var(--subtle);display:flex;flex-direction:column;gap:7px;margin-bottom:10px}
.sheet-pick-head{display:flex;align-items:center;gap:8px;justify-content:space-between;flex-wrap:wrap}
.sheet-pick-title{font-size:12.5px;font-weight:600;display:flex;align-items:center;gap:5px;color:var(--text)}
.sheet-pick-title svg{width:13px;height:13px;stroke-width:1.8}
.sheet-pick-row{display:flex;gap:6px}
.sheet-pick-row .input{flex:1;min-width:0;background:var(--panel)}
.sheet-pick .tiny{line-height:1.5}
.sku-chip{flex:0 0 auto;font-size:10.5px;font-weight:600;letter-spacing:.02em;background:var(--brand-50);color:var(--brand);border-radius:4px;padding:2px 5px;max-width:96px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.stock-hint{font-size:10.5px;color:var(--muted);align-self:flex-end;padding-bottom:7px;white-space:nowrap;line-height:14px}
.stock-hint.over{color:var(--red);font-weight:600}
.item-meta .mini .input.over-stock{border-color:var(--red);background:var(--bad-bg);color:var(--red);font-weight:600}
.item-meta .mini .input.over-stock:focus{box-shadow:0 0 0 2px var(--bad-bg);border-color:var(--red)}
.sheet-cols{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
.sheet-preview{margin-top:8px;overflow:auto;border:1px solid var(--line);border-radius:6px}
.sheet-preview table{width:100%;border-collapse:collapse;font-size:11.5px}
.sheet-preview th,.sheet-preview td{padding:5px 8px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.sheet-preview th{background:var(--subtle);font-weight:600;color:var(--muted)}
.sheet-preview td.right,.sheet-preview th.right{text-align:right}
.sheet-preview tr:last-child td{border-bottom:0}
@media (max-width:560px){.sheet-cols{grid-template-columns:1fr}}

.totals{display:flex;flex-direction:column;gap:6px;margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.totals .line{display:flex;justify-content:space-between;font-size:13px;color:var(--text)}
.totals .line b{font-variant-numeric:tabular-nums}
.totals .grand{font-size:15px;font-weight:600;color:var(--text);padding-top:6px;border-top:1px solid var(--line)}
.totals .words{font-size:12px;color:var(--muted);font-style:italic;line-height:1.45;margin-top:4px}
.totals .grand b{color:var(--brand)}

/* installments */
.inst-row{display:grid;grid-template-columns:64px 84px 1fr 30px;gap:8px;align-items:center}
.inst-row .pct{display:flex;align-items:center;gap:4px}
.inst-row .pct .input{text-align:right;padding-right:6px}
.inst-row .pct span{font-size:12px;color:var(--muted)}
.inst-card{border:1px solid var(--line);border-radius:6px;padding:9px 10px;background:var(--panel-2)}
.inst-card + .inst-card{margin-top:8px}
.inst-head{display:flex;align-items:center;gap:6px}
.inst-head .pct{display:flex;align-items:center;gap:4px}
.inst-head .pct span{font-size:12px;color:var(--muted)}
.inst-head .inst-mode{width:48px;min-width:48px;padding:0 4px;text-align:center;background-position:right 4px center;background-size:10px}
.inst-amt{margin-left:auto;font-size:12.5px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--brand)}
.inst-amt.muted{color:var(--muted);font-weight:500;font-size:11.5px}
.inst-head .del,.items-editor .del{background:none;border:0;cursor:pointer;color:var(--faint);padding:4px;border-radius:4px;line-height:0}
.inst-head .del:hover{color:var(--red);background:var(--red-50)}

/* specs editor — thông số kỹ thuật hợp đồng mua vào */
.spec-row{display:grid;grid-template-columns:minmax(140px,1fr) minmax(200px,1.5fr) 30px;gap:8px;align-items:center}
.spec-row + .spec-row{margin-top:6px}
.spec-row .input{background:var(--panel)}
.spec-row .del{background:none;border:0;cursor:pointer;color:var(--faint);padding:4px;border-radius:4px;line-height:0}
.spec-row .del:hover{color:var(--red);background:var(--red-50)}
.spec-row .del svg{width:15px;height:15px;display:block}

/* ---------- document page ---------- */
.preview-shell{
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:10px 14px 20px;display:flex;flex-direction:column;gap:10px;
}
.preview-toolbar{display:flex;align-items:center;gap:8px;justify-content:space-between;padding-top:2px}
.preview-toolbar .left{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);font-weight:400}
.preview-scroll{overflow:auto;max-height:calc(100vh - 250px);padding:4px;display:flex;justify-content:center}
.page-scaler{transform-origin:top center;flex:0 0 auto}

.doc-page{
  width:210mm;min-height:297mm;background:#fff;color:#000;
  /* Chuẩn Nghị định 30/2020/NĐ-CP: trên/dưới 20 mm, trái 30 mm, phải 15 mm */
  padding:20mm 15mm 20mm 30mm;box-sizing:border-box;
  /* Giãn dòng tối thiểu 1,2 lần cỡ chữ theo Nghị định 30/2020/NĐ-CP */
  font-family:"Times New Roman",Times,serif;font-size:13pt;line-height:1.2;
  box-shadow:0 1px 2px rgba(0,0,0,.10),0 14px 34px -14px rgba(0,0,0,.35);
  position:relative;
}
.doc-page p{margin:0;white-space:normal}
.doc-page .p-gap{height:6pt}
.doc-page table{width:100%;border-collapse:collapse;table-layout:fixed;page-break-inside:avoid;break-inside:avoid}
.doc-page td{vertical-align:top;padding:0}
.doc-page table.grid td{border:.75pt solid #000;padding:3pt 4pt;font-size:12pt;line-height:1.2;vertical-align:middle}
.doc-page table.grid th{border:.75pt solid #000;padding:4pt 3pt;font-size:12pt;font-weight:700;text-align:center;background:#f2f2f2;vertical-align:middle}
.doc-page table.plain td{padding:0 2pt;vertical-align:top}
.doc-page .doc-title{font-weight:bold}
.doc-page .small{font-size:11pt}
.doc-page .sign-name{font-weight:bold}
.doc-page .doc-footer{position:absolute;bottom:8mm;left:0;right:0;text-align:center;font-size:9pt;color:#777}

/* ---------- misc ---------- */
.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:48px 20px;text-align:center;color:var(--muted)}
.empty .ico{width:48px;height:48px;border-radius:8px;background:var(--subtle);color:var(--muted);display:flex;align-items:center;justify-content:center}
.empty .ico svg{width:24px;height:24px;stroke-width:1.6}
.empty h4{font-size:15px;color:var(--text);font-weight:600}
.empty p{font-size:13px;max-width:360px;line-height:1.5}

.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.toolbar .search{position:relative;flex:1;max-width:360px;min-width:200px}
.toolbar .search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted);stroke-width:1.8}
.toolbar .search .input{padding-left:34px}
.toolbar .spacer{flex:1}

.divider{height:1px;background:var(--line);margin:12px 0}
.section-title{font-size:12px;font-weight:600;letter-spacing:0;text-transform:none;color:var(--muted);margin:2px 0 8px}
.pill-row{display:flex;gap:6px;flex-wrap:wrap}
.hint-box{background:var(--subtle);border:1px dashed var(--line);border-radius:var(--radius-ctl);padding:10px 12px;font-size:12.5px;color:var(--text);line-height:1.55}
.hint-box b{color:var(--text);font-weight:600}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;font-size:13px}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:600}
.mono{font-variant-numeric:tabular-nums}

/* link cards (contract chain) */
.chain{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.chain .step{border:1px solid var(--line);border-radius:6px;padding:10px 12px;background:var(--panel-2);display:flex;flex-direction:column;gap:4px;position:relative}
.chain .step .n{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:0;text-transform:none}
.chain .step .t{font-size:13px;font-weight:600;color:var(--text)}
.chain .step .a{font-size:12px;color:var(--brand);font-weight:600;cursor:pointer}
.chain .step.done{background:var(--ok-bg);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}
.chain .step.done .n{color:var(--ok)}

/* ---------- modal (ContentDialog) ---------- */
.modal-backdrop{
  position:fixed;inset:0;background:var(--smoke);display:grid;place-items:center;
  padding:16px;z-index:100;overflow:auto;animation:fade .14s ease;
}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{
  background:var(--panel);border-radius:var(--radius);border:1px solid var(--line);
  box-shadow:var(--shadow-lg);width:100%;max-width:560px;
  display:flex;flex-direction:column;max-height:90dvh;
  animation:pop .16s cubic-bezier(0,0,0,1);
}
.modal.wide{max-width:820px}
@keyframes pop{from{transform:translateY(8px) scale(.99);opacity:.6}to{transform:none;opacity:1}}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:22px 24px 0;border-bottom:0}
.modal-head h3{font-family:var(--font-display);font-size:20px;line-height:28px;font-weight:600}
.modal-body{padding:12px 24px 24px;max-height:calc(90dvh - 150px);overflow:auto}
.modal-foot{
  display:flex;justify-content:flex-end;gap:8px;padding:18px 24px;
  border-top:1px solid var(--line);background:var(--panel-2);
  border-radius:0 0 var(--radius) var(--radius);
}
.modal-foot .btn{min-width:96px}

/* ---------- toast (góc dưới phải, acrylic) ---------- */
.toast-root{position:fixed;bottom:16px;right:16px;display:flex;flex-direction:column;gap:8px;z-index:200;align-items:flex-end}
.toast{
  display:flex;align-items:center;gap:9px;
  background:var(--acrylic);color:var(--text);border:1px solid var(--line);
  padding:11px 16px;border-radius:var(--radius);font-size:13.5px;font-weight:400;
  backdrop-filter:blur(30px) saturate(125%);-webkit-backdrop-filter:blur(30px) saturate(125%);
  box-shadow:var(--shadow-flyout);max-width:360px;
  animation:slide .22s cubic-bezier(0,0,0,1);
}
.toast svg{width:16px;height:16px;flex:0 0 16px;color:var(--brand)}
.toast.ok svg{color:var(--ok)}
.toast.err{background:var(--acrylic);color:var(--text)}
.toast.err svg{color:var(--bad)}
@keyframes slide{from{transform:translateY(16px);opacity:0}to{transform:none;opacity:1}}

/* ---------- responsive ---------- */
@media (max-width:1500px){
  .editor{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:1180px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .row-split{grid-template-columns:1fr}
  .editor{grid-template-columns:1fr}
  .editor .preview-col{position:static}
  .preview-scroll{max-height:none}
}
@media (max-width:860px){
  .app{padding-top:0}
  .sidebar{
    position:fixed;left:-270px;top:0;bottom:0;z-index:60;width:250px;flex-basis:250px;
    background:var(--acrylic);backdrop-filter:blur(30px) saturate(125%);
    -webkit-backdrop-filter:blur(30px) saturate(125%);
    border-right:1px solid var(--line);padding:8px 6px;
    transition:left .2s;box-shadow:var(--shadow-flyout);
  }
  body.nav-open .sidebar{left:0}
  .main{border:0;border-radius:0;box-shadow:none}
  .topbar{padding:14px 16px 6px}
  .topbar h1{font-size:22px;line-height:28px}
  .content{padding:6px 16px 40px}
  .form-grid{grid-template-columns:1fr}
  .chain{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:8px}
  .stat .value{font-size:22px}
  .menu-btn{display:inline-flex !important}
  .card-head{flex-wrap:wrap}
  .modal-head{padding:18px 18px 0}
  .modal-body{padding:10px 18px 18px}
  .modal-foot{padding:14px 18px}
  .toast-root{right:12px;left:12px;bottom:12px;align-items:stretch}
  .toast{max-width:none}
}
.menu-btn{display:none}

/* ---------- đăng nhập bằng passkey ---------- */
body.auth-lock{overflow:hidden}
body.auth-lock .app{display:none}
.auth-screen{
  position:fixed;inset:0;z-index:400;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;padding:24px;
  background-color:var(--bg);background-image:var(--mica);overflow:auto;
}
.auth-screen::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 500px at 16% 0%,rgba(0,95,184,.12),transparent 62%),
    radial-gradient(700px 420px at 92% 100%,rgba(122,79,181,.10),transparent 60%);
}
.auth-card{
  position:relative;width:min(430px,100%);background:var(--panel);
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);
  padding:26px 28px 20px;animation:authIn .18s ease-out;
}
@keyframes authIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.auth-brand{display:flex;align-items:center;gap:12px}
.auth-logo{
  width:46px;height:46px;border-radius:11px;overflow:hidden;background:#fff;
  display:grid;place-items:center;border:1px solid var(--line);flex:none;
}
.auth-logo img{width:100%;height:100%;object-fit:cover;display:block}
.auth-brand strong{display:block;font-family:var(--font-display);font-size:15.5px;font-weight:600;line-height:1.25}
.auth-brand span{display:block;font-size:12px;color:var(--muted);margin-top:1px}
.auth-hero{margin-top:20px}
.auth-ico{
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-50);color:var(--brand);margin-bottom:12px;
}
.auth-ico.warn{background:var(--red-50);color:var(--red)}
.auth-hero h2{font-family:var(--font-display);font-size:20px;line-height:1.3;margin:0 0 6px;color:var(--text);font-weight:600}
.auth-hero p{font-size:13px;line-height:1.6;color:var(--muted);margin:0}
.auth-label{display:block;font-size:12px;font-weight:600;color:var(--text);margin:14px 0 5px}
.auth-input{width:100%;height:38px;font-size:14px}
.auth-code{letter-spacing:.12em;font-family:ui-monospace,Consolas,monospace;text-transform:uppercase;font-size:14.5px}
.auth-primary{width:100%;height:42px;justify-content:center;margin-top:18px;font-size:14px}
.auth-alt{width:100%;justify-content:center;margin-top:8px}
.auth-hint{font-size:12px;line-height:1.55;color:var(--muted);margin-top:14px}
.auth-hint code,.auth-keys code{
  font-size:11.5px;background:var(--subtle);border:1px solid var(--line);
  border-radius:4px;padding:1px 4px;word-break:break-all;
}
.auth-msg{min-height:20px;margin-top:10px;font-size:12.5px;line-height:1.5;color:var(--muted);display:flex;align-items:flex-start;gap:6px}
.auth-msg svg{flex:none;margin-top:1px}
.auth-msg.err{color:var(--red)}
.auth-foot-note{
  margin-top:16px;padding-top:12px;border-top:1px solid var(--line);
  font-size:11.5px;color:var(--faint);display:flex;align-items:center;gap:6px;line-height:1.4;
}
.auth-copyright{position:relative;font-size:11.5px;color:var(--faint)}
.auth-screen.is-busy .auth-primary,.auth-screen.is-busy .auth-alt{opacity:.75}
.auth-keys{display:flex;flex-direction:column;gap:6px}
.auth-key-row{
  display:flex;align-items:center;gap:8px;padding:8px;border:1px solid var(--line);
  border-radius:8px;background:var(--panel-2);
}
.auth-key-ico{width:28px;height:28px;border-radius:6px;background:var(--brand-50);color:var(--brand);display:grid;place-items:center;flex:none}
.auth-key-info{min-width:0;flex:1}
.auth-key-info b{display:block;font-size:12.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.auth-key-info span{display:block;font-size:11px;color:var(--muted);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.auth-addform{display:flex;gap:8px;margin-top:10px}
.auth-addform .input{flex:1;min-width:0}
.auth-screen code{color:var(--ink-2)}
@media (max-width:520px){
  .auth-card{padding:22px 20px 16px}
  .auth-copyright{text-align:center}
}
@media (prefers-reduced-motion:reduce){.auth-card{animation:none}}

/* ---------- print ---------- */
#printRoot{display:none}
@media print{
  html,body{background:#fff !important;height:auto;overflow:visible !important}
  body.printing .app{display:none !important}
  body.printing #printRoot{display:block !important}
  #printRoot .doc-page{
    width:auto !important;min-height:0 !important;padding:0 !important;margin:0 !important;
    box-shadow:none !important;zoom:1 !important;transform:none !important;
  }
  @page{size:A4;margin:20mm 15mm 20mm 30mm}
}

/* ---------- tiện ích ---------- */
.stat .value{font-size:clamp(20px,1.7vw,26px)}
table.tbl td.num,table.tbl .doc-no{white-space:nowrap}
@media (prefers-reduced-motion:reduce){
  .modal,.modal-backdrop,.toast{animation:none}
  .sidebar{transition:none}
}