:root {
  --bg: #f4f6f9;
  --card: #fff;
  --text: #1d2433;
  --muted: #6b7486;
  --line: #e2e6ee;
  --primary: #1f5fbf;
  --primary-ink: #fff;
  --good: #1a8a4f;
  --warn: #b7791f;
  --bad: #c53030;
  --radius: 10px;
  --nav-w: 230px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 0 0 8px; }
small, .muted { color: var(--muted); }
code, .mono { font-family: ui-monospace, Consolas, monospace; font-size: 13px; }

/* Khung */
.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 8px; height: 52px; padding: 0 12px; background: var(--primary); color: #fff; }
.topbar .brand { color: #fff; font-weight: 700; font-size: 17px; flex: 1; }
.icon-btn { position: relative; display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border: 0; border-radius: 8px; background: transparent; color: #fff; font-size: 20px; cursor: pointer; text-decoration: none !important; }
.icon-btn .dot { position: absolute; top: 3px; right: 1px; min-width: 18px; padding: 0 5px; border-radius: 9px; background: #e53e3e; color: #fff; font-size: 11px; line-height: 18px; text-align: center; }
.sidenav { position: fixed; top: 0; bottom: 0; left: 0; z-index: 40; width: var(--nav-w); padding: 12px 0; overflow-y: auto; background: #182235; transform: translateX(-100%); transition: transform .2s; }
.sidenav.open { transform: none; }
.sidenav .who { padding: 8px 18px 14px; color: #fff; border-bottom: 1px solid #2b3750; margin-bottom: 6px; }
.sidenav .who small { display: block; color: #9fb0cc; }
.sidenav a { display: block; padding: 10px 18px; color: #d4dcea; }
.sidenav a:hover { background: #22304a; text-decoration: none; }
.sidenav a.on { background: var(--primary); color: #fff; }
.nav-shade { position: fixed; inset: 0; z-index: 35; display: none; background: rgba(0, 0, 0, .35); }
.nav-shade.open { display: block; }
.main { max-width: 1280px; margin: 0 auto; padding: 16px; }
@media (min-width: 1000px) {
  .has-nav .topbar [data-toggle-nav] { display: none; }
  .has-nav .sidenav { transform: none; top: 52px; }
  .has-nav .main { margin-left: var(--nav-w); }
  .nav-shade { display: none !important; }
}

/* Thành phần */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.card.highlight { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(31, 95, 191, .12); }
.page-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 16px; }
.page-head h1 small { font-size: 14px; font-weight: 400; }
.head-actions, .actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions { margin-top: 12px; }
.badges { margin-top: 4px; }
.hint { margin: -6px 0 12px; font-size: 13px; }
.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.alert.ok { background: #e7f6ee; color: #145c36; border: 1px solid #b7e2c9; }
.alert.err { background: #fdecec; color: #8f1d1d; border: 1px solid #f3c0c0; }
.alert ul { margin: 6px 0 0; padding-left: 20px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 4px; min-height: 38px; padding: 6px 14px; border: 1px solid #c9d1df; border-radius: 8px; background: #fff; color: var(--text); font: inherit; cursor: pointer; text-decoration: none !important; white-space: nowrap; }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.btn.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.small { min-height: 30px; padding: 3px 10px; font-size: 13px; }
.btn.block { width: 100%; }
.btn.big { min-height: 52px; font-size: 18px; }
.btn.on { background: #e7f6ee; border-color: var(--good); color: var(--good); }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; font-weight: 600; background: #edf0f5; color: #4a5468; white-space: nowrap; }
.badge.blue { background: #e6eefb; color: #1f4f9a; }
.badge.good { background: #e3f4ea; color: var(--good); }
.badge.warn { background: #fdf3e1; color: var(--warn); }
.badge.bad { background: #fde8e8; color: var(--bad); }
.badge.gray { background: #edf0f5; color: #5a6477; }
.count { display: inline-block; min-width: 22px; padding: 0 6px; border-radius: 10px; background: #edf0f5; color: #4a5468; font-size: 12px; text-align: center; font-weight: 600; }

/* Form */
label { display: block; margin-bottom: 12px; font-size: 14px; font-weight: 500; }
label small { font-weight: 400; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; min-height: 40px; border: 1px solid #c9d1df; border-radius: 8px; background: #fff; color: var(--text); font: inherit; font-size: 16px; }
textarea { min-height: 60px; }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(31, 95, 191, .35); border-color: var(--primary); }
input[type=checkbox], input[type=radio] { display: inline-block; width: auto; min-height: 0; margin: 0 6px 0 0; vertical-align: middle; }
label.check { display: flex; align-items: center; font-weight: 400; }
fieldset.multi { border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 4px 16px; }
fieldset.multi legend { font-size: 14px; font-weight: 500; padding: 0 4px; }
fieldset.multi label.check { margin: 0; }
.grid2, .grid3 { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 700px) {
  .grid2 { grid-template-columns: 1fr 1fr; }
  .grid3 { grid-template-columns: 1fr 1fr 1fr; }
  .grid5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0 12px; }
  .grid2 .wide, .grid2 .actions { grid-column: 1 / -1; }
}
.seg { display: flex; gap: 8px; margin-bottom: 14px; }
.seg label { margin: 0; padding: 8px 14px; border: 1px solid #c9d1df; border-radius: 8px; cursor: pointer; font-weight: 600; }
.seg label:has(input:checked) { border-color: var(--primary); background: #e6eefb; color: var(--primary); }
.row-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-end; margin-bottom: 10px; }
.row-form label { margin: 0; flex: 1 1 200px; }
form.inline { display: inline; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 12px; }
.filters input, .filters select { flex: 1 1 150px; width: auto; margin: 0; }
.filters label.check { margin: 0; }
.inline-filters { display: flex; gap: 6px; align-items: center; }
.inline-filters input, .inline-filters select { width: auto; margin: 0; min-height: 34px; padding: 4px 8px; font-size: 14px; }
.w-sm { width: 80px; }
select.w-auto { display: inline-block; width: auto; margin: 0; min-height: 32px; padding: 3px 8px; font-size: 14px; }
.dup-msg { display: block; margin-top: 4px; font-size: 13px; color: var(--bad); font-weight: 600; }
details.danger-zone { margin-top: 10px; border-top: 1px dashed var(--line); padding-top: 10px; }
details.danger-zone summary { cursor: pointer; color: var(--bad); font-weight: 600; margin-bottom: 8px; }
.login-box { max-width: 400px; margin: 40px auto; }
.login-box h1 { margin-bottom: 16px; }

/* Bảng */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; white-space: nowrap; }
.num { text-align: right; white-space: nowrap; }
tr.muted td { color: var(--muted); }
tfoot td { font-weight: 600; }
tr.grand td, .grand { font-size: 16px; font-weight: 700; }
@media (max-width: 699px) {
  table.stack thead { display: none; }
  table.stack, table.stack tbody, table.stack tr, table.stack td { display: block; width: 100%; }
  table.stack tr { padding: 8px 0; border-bottom: 1px solid var(--line); }
  table.stack td { border: 0; padding: 3px 4px; text-align: left; }
  table.stack td[data-label]::before { content: attr(data-label) ": "; color: var(--muted); font-size: 12px; }
}
.pager { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.pager a, .pager b { padding: 3px 10px; border: 1px solid var(--line); border-radius: 6px; }
.pager b { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Chi tiết */
.cols { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 1000px) { .cols { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); } }
dl.info { display: grid; grid-template-columns: 130px 1fr; gap: 6px 12px; margin: 0; }
dl.info dt { color: var(--muted); }
dl.info dd { margin: 0; word-break: break-word; }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { position: relative; padding: 0 0 14px 16px; border-left: 2px solid var(--line); margin-left: 4px; }
.timeline li::before { content: ""; position: absolute; left: -6px; top: 5px; width: 10px; height: 10px; border-radius: 50%; background: #b9c3d6; }
.timeline .t-contact::before { background: var(--primary); }
.timeline .t-convert::before, .timeline .t-accept::before { background: var(--good); }
.timeline .t-miss::before, .timeline .t-warn::before, .timeline .t-archive::before { background: var(--bad); }
.t-note { white-space: pre-wrap; background: #f6f8fb; border-radius: 6px; padding: 4px 8px; margin: 3px 0; }
.accept-card { max-width: 480px; margin: 20px auto; }
.accept-card h1 { margin-bottom: 14px; }

/* Tổng quan */
.grid-cards { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 760px) { .grid-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1200px) { .grid-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
ul.list { list-style: none; margin: 0; padding: 0; }
ul.list li { padding: 6px 0; border-bottom: 1px solid var(--line); }
ul.list li:last-child { border-bottom: 0; }
.kpis { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (min-width: 760px) { .kpis { grid-template-columns: repeat(4, 1fr); } }
.kpi { padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; }
.kpi span { display: block; color: var(--muted); font-size: 13px; }
.kpi b { display: block; font-size: 24px; }
.kpi b small { font-size: 14px; font-weight: 400; }
.bar { display: inline-block; vertical-align: middle; width: 70px; height: 6px; border-radius: 3px; background: #edf0f5; overflow: hidden; margin-right: 4px; }
.bar i { display: block; height: 100%; background: var(--primary); }
.bar.good i { background: var(--good); }
.bar.warn i { background: var(--warn); }
.funnels { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 760px) { .funnels { grid-template-columns: 1fr 1fr; } }
.frow { display: grid; grid-template-columns: 110px 1fr 40px; align-items: center; gap: 8px; margin-bottom: 6px; font-size: 14px; }
.frow i { display: block; height: 18px; border-radius: 4px; background: #9db8e6; }
.frow.won i { background: var(--good); }
.frow b { text-align: right; }

/* Kanban */
.kanban { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 12px; scroll-snap-type: x mandatory; }
.kcol { flex: 0 0 85vw; max-width: 320px; background: #e9edf3; border-radius: var(--radius); padding: 8px; scroll-snap-align: start; }
@media (min-width: 700px) { .kcol { flex: 1 0 240px; } }
.kcol header { display: flex; align-items: center; justify-content: space-between; padding: 4px 6px 10px; font-weight: 700; }
.kcol.lost { background: #fbeaea; }
.kcol.drop { outline: 3px dashed var(--primary); }
.kcards { min-height: 80px; }
.kcard { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 10px; margin-bottom: 8px; font-size: 13px; cursor: grab; }
.kcard.dragging { opacity: .5; }
.kname { display: block; font-weight: 700; font-size: 14px; margin-bottom: 2px; }
.kmeta { color: var(--muted); }
.kfoot { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.kmove { margin-top: 8px; min-height: 32px; padding: 3px 6px; font-size: 13px; }
@media (hover: hover) and (min-width: 700px) { .kmove { display: none; } }
dialog { border: 0; border-radius: var(--radius); padding: 20px; width: min(420px, 92vw); box-shadow: 0 10px 40px rgba(0, 0, 0, .25); }
dialog::backdrop { background: rgba(0, 0, 0, .35); }

/* Đơn hàng */
table.items input, table.items select { min-width: 90px; margin: 0; font-size: 14px; }
table.items td { vertical-align: middle; padding: 4px; }
table.items input[readonly] { background: #f1f3f7; color: var(--muted); }
.old { color: var(--muted); text-decoration: line-through; }

/* KPI */
.kpi-table td { min-width: 120px; }
.kpi-table td:first-child { min-width: 170px; }
.kcell small { display: block; font-size: 12px; }
.kin { display: flex; gap: 4px; }
.kin input { width: 64px; min-height: 34px; margin: 0; padding: 4px 6px; font-size: 14px; }
.kin select { width: auto; min-height: 34px; margin: 0; padding: 2px 4px; font-size: 13px; }
tr.readonly-row td { background: #f6f8fb; }
.totals { display: grid; gap: 4px; justify-items: end; margin: 12px 0 20px; }
.totals label { display: flex; align-items: center; gap: 8px; margin: 0; }
.totals label input { width: 90px; margin: 0; }

/* Thông báo */
ul.notes { list-style: none; margin: 0; padding: 0; }
ul.notes li { padding: 10px 0; border-bottom: 1px solid var(--line); }
ul.notes li.unread { background: #f1f6ff; margin: 0 -16px; padding: 10px 16px; }
.note-text { white-space: normal; }