:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-2: #f3f2ee;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #6f6e69;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.12);
  --accent: #2a78d6;
  --accent-ink: #1c5cab;
  --accent-wash: rgba(42, 120, 214, 0.10);
  --spark: #9ec5f4;
  --good: #006300;
  --good-mark: #0ca30c;
  --warning: #fab219;
  --critical: #d03b3b;
  --critical-ink: #b42b2b;
  --critical-wash: rgba(208, 59, 59, 0.10);
  --warning-wash: rgba(250, 178, 25, 0.16);
  --good-wash: rgba(12, 163, 12, 0.10);
  --radius: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-2: #232321;
    --ink: #f0efec;
    --ink-2: #c3c2b7;
    --muted: #9a9890;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --accent: #3987e5;
    --accent-ink: #86b6ef;
    --accent-wash: rgba(57, 135, 229, 0.16);
    --spark: #256abf;
    --good: #0ca30c;
    --critical-ink: #e66767;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--page); color: var(--ink); font: 14px/1.5 var(--font); }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 20px; margin: 0 0 4px; font-weight: 650; }
h2 { font-size: 15px; margin: 0 0 12px; font-weight: 650; }
h3 { font-size: 13px; margin: 0 0 8px; font-weight: 650; color: var(--ink-2); }
.sub { color: var(--ink-2); margin: 0 0 20px; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12px; word-break: break-all; }
.num { font-variant-numeric: tabular-nums; }

/* Khung */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; background: linear-gradient(to right, var(--surface) 219px, var(--border) 219px 220px, var(--page) 220px); }
.side { background: var(--surface); border-right: 1px solid var(--border); padding: 16px 12px; display: flex; flex-direction: column; gap: 2px; position: sticky; top: 0; height: 100vh; }
.brand { font-weight: 700; font-size: 14px; padding: 4px 10px 16px; line-height: 1.3; }
.brand small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; }
.nav a { display: block; padding: 7px 10px; border-radius: 6px; color: var(--ink-2); }
.nav a:hover { background: var(--surface-2); text-decoration: none; }
.nav a.on { background: var(--accent-wash); color: var(--accent-ink); font-weight: 600; }
.side .me { margin-top: auto; padding: 10px; border-top: 1px solid var(--border); font-size: 13px; }
.side .me button { margin-top: 6px; }
main { padding: 24px 32px 64px; max-width: 1280px; width: 100%; }
.topline { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.topline .sub { margin: 0; }

/* Khối */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* Ô chỉ số */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 12px; margin-bottom: 20px; }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 14px 10px; cursor: pointer; text-align: left; font: inherit; color: inherit; }
.tile:hover { border-color: var(--accent); }
.tile:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tile .label { color: var(--ink-2); font-size: 13px; }
.tile .value { font-size: 28px; font-weight: 600; line-height: 1.2; margin: 2px 0; }
.tile .delta { font-size: 12px; color: var(--muted); min-height: 18px; }
.delta .good { color: var(--good); font-weight: 600; }
.delta .bad { color: var(--critical-ink); font-weight: 600; }
.spark { display: block; width: 100%; height: 34px; margin-top: 6px; }
.spark .bar { fill: var(--spark); }
.spark .bar.cur { fill: var(--accent); }
.spark .hit { fill: transparent; }
.spark .hit:hover + .bar, .spark .bar:hover { fill: var(--accent); }

/* Bảng */
table.t { width: 100%; border-collapse: collapse; font-size: 13px; }
.t th { text-align: left; font-weight: 600; color: var(--ink-2); border-bottom: 1px solid var(--axis); padding: 6px 8px; white-space: nowrap; }
.t td { border-bottom: 1px solid var(--grid); padding: 7px 8px; vertical-align: top; }
.t tr.click { cursor: pointer; }
.t tr.click:hover td { background: var(--surface-2); }
.t td.r, .t th.r { text-align: right; font-variant-numeric: tabular-nums; }
.wrap { overflow-x: auto; }
.clip { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.t td.mono { word-break: normal; }
.empty { color: var(--muted); padding: 16px 0; }

/* Nhãn trạng thái: luôn có chữ, không chỉ màu */
.pill { display: inline-flex; align-items: center; gap: 5px; padding: 1px 8px; border-radius: 999px; font-size: 12px; background: var(--surface-2); color: var(--ink-2); white-space: nowrap; }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--axis); }
.pill.alive::before, .pill.dang_xu_ly::before, .pill.cho::before { background: var(--accent); }
.pill.down::before, .pill.da_xu_ly::before, .pill.dong::before, .pill.thanh_cong::before { background: var(--good-mark); }
.pill.blocked::before { background: var(--good-mark); }
.pill.moi::before { background: var(--warning); }
.pill.xac_minh::before { background: #6250d6; }
.pill.overdue { background: var(--critical-wash); color: var(--critical-ink); font-weight: 600; }
.pill.overdue::before, .pill.khong_thanh_cong::before { background: var(--critical); }
.pill.draft { background: var(--warning-wash); color: var(--ink); }
.pill.draft::before { background: var(--warning); }
.pill.approved { background: var(--good-wash); color: var(--good); }
.pill.approved::before { background: var(--good-mark); }

/* Biểu mẫu */
label.f, div.f { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--ink-2); }
label.f > span, div.f > span { font-weight: 500; }
.grid-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.grid-form .wide { grid-column: 1 / -1; }
input, select, textarea { font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--axis); border-radius: 6px; padding: 7px 9px; width: 100%; }
textarea { min-height: 84px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
input[type=checkbox] { width: auto; }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 4px 12px; font-weight: 400; }
.checks label { display: flex; gap: 6px; align-items: baseline; color: var(--ink); }
ul.plain { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
button, .btn { font: inherit; font-size: 13px; font-weight: 550; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--axis); background: var(--surface); color: var(--ink); cursor: pointer; white-space: nowrap; display: inline-block; }
button:hover, .btn:hover { background: var(--surface-2); text-decoration: none; }
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { filter: brightness(1.08); }
button.danger { color: var(--critical-ink); }
button.small, .btn.small { padding: 3px 9px; font-size: 12px; }
button:disabled { opacity: .5; cursor: default; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.filters > * { width: auto; min-width: 140px; }
.filters input[type=search] { min-width: 240px; }

.entity-rows { display: flex; flex-direction: column; gap: 8px; }
.entity-row { display: grid; grid-template-columns: 190px 1fr 160px 32px; gap: 8px; }

/* Thông báo */
.toast { position: fixed; bottom: 20px; right: 20px; background: var(--ink); color: var(--surface); padding: 10px 16px; border-radius: 8px; max-width: 420px; box-shadow: 0 6px 20px rgba(0,0,0,.2); z-index: 50; }
.toast.err { background: var(--critical); color: #fff; }
.note { background: var(--surface-2); border-radius: 6px; padding: 10px 12px; font-size: 13px; color: var(--ink-2); }
.note.warn { background: var(--warning-wash); color: var(--ink); }

/* Hộp thoại */
dialog { border: 1px solid var(--border); border-radius: 10px; padding: 0; background: var(--surface); color: var(--ink); width: min(920px, 94vw); max-height: 86vh; }
dialog::backdrop { background: rgba(0,0,0,.35); }
dialog .dh { display: flex; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--surface); }
dialog .db { padding: 16px; overflow: auto; }

/* Báo cáo */
.report-sec { border-top: 1px solid var(--grid); padding: 14px 0; }
.report-sec:first-child { border-top: 0; }
.report-sec p { margin: 0 0 6px; }
.report-sec .placeholder { color: var(--critical-ink); }
.dl { display: grid; grid-template-columns: 160px 1fr; gap: 6px 12px; font-size: 13px; }
.dl dt { color: var(--muted); }
.dl dd { margin: 0; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tabs a { padding: 8px 12px; color: var(--ink-2); border-bottom: 2px solid transparent; }
.tabs a.on { color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.thumb { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; font-size: 12px; background: var(--surface-2); }
.thumb img { width: 100%; height: 110px; object-fit: cover; object-position: top; display: block; background: var(--grid); }
.thumb div { padding: 6px 8px; }

/* Đăng nhập */
.login { max-width: 360px; margin: 12vh auto; }
.login .card { padding: 24px; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; background: var(--page); }
  .side { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .side .me { margin: 0; border: 0; }
  .brand { padding: 4px 10px; }
  main { padding: 16px; }
  .entity-row { grid-template-columns: 1fr; }
}