:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-2: #f3f2ee;
  --text: #0b0b0b;
  --text-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --accent: #2a78d6;
  --accent-wash: rgba(42, 120, 214, 0.1);
  --up: #006300;
  --down: #d03b3b;
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --s5: #e87ba4; --s6: #008300; --s7: #6250d6; --s8: #e34948;
  --other: #b9b8b0;
  --good: #0ca30c; --warning: #fab219; --serious: #ec835a; --critical: #d03b3b;
  --seq-0: #cde2fb; --seq-1: #9ec5f4; --seq-2: #6da7ec; --seq-3: #3987e5; --seq-4: #256abf; --seq-5: #184f95; --seq-6: #0d366b;
  --radius: 10px;
  --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: #242423;
    --text: #f0efec; --text-2: #c3c2b7; --muted: #898781;
    --grid: #2c2c2a; --axis: #383835; --border: rgba(255, 255, 255, 0.1);
    --accent: #3987e5; --accent-wash: rgba(57, 135, 229, 0.16);
    --up: #0ca30c; --down: #e66767;
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
    --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
    --other: #5c5b57;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --surface-2: #242423;
  --text: #f0efec; --text-2: #c3c2b7; --muted: #898781;
  --grid: #2c2c2a; --axis: #383835; --border: rgba(255, 255, 255, 0.1);
  --accent: #3987e5; --accent-wash: rgba(57, 135, 229, 0.16);
  --up: #0ca30c; --down: #e66767;
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
  --other: #5c5b57;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--text);
  font: 14px/1.45 var(--font);
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; color: inherit; }
a { color: var(--accent); }

/* ---------- header ---------- */
.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 14px 24px 0; max-width: 1440px; margin: 0 auto;
}
.topbar h1 { font-size: 18px; margin: 0; font-weight: 650; letter-spacing: -0.01em; }
.freshness { color: var(--text-2); font-size: 13px; }
.topbar .spacer { flex: 1; }
.tabs {
  display: flex; gap: 2px; padding: 10px 24px 0; max-width: 1440px; margin: 0 auto;
  overflow-x: auto; scrollbar-width: none; border-bottom: 1px solid var(--grid);
}
.tabs button {
  background: none; border: 0; padding: 8px 12px 10px; cursor: pointer; color: var(--text-2);
  border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; font-weight: 500;
}
.tabs button:hover { color: var(--text); }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 10px; cursor: pointer; font-size: 13px; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--accent); border-color: transparent; color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--down); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn.small { padding: 3px 8px; font-size: 12px; }
.icon-btn {
  background: none; border: 1px solid transparent; border-radius: 6px; cursor: pointer; padding: 4px 6px;
  color: var(--text-2); font-size: 13px; display: inline-flex; gap: 4px; align-items: center;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); border-color: var(--border); }

/* ---------- filter bar ---------- */
.filterbar {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--page) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--grid);
}
.filterbar-inner {
  max-width: 1440px; margin: 0 auto; padding: 10px 24px;
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}
.filterbar[hidden] { display: none; }
.field { display: inline-flex; align-items: center; gap: 6px; }
.field select, .field input[type="date"] {
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 5px 8px; font-size: 13px;
}
.field label { color: var(--muted); font-size: 12px; }
.divider { width: 1px; height: 22px; background: var(--grid); margin: 0 4px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); }
.seg button { border: 0; background: none; padding: 5px 9px; font-size: 13px; cursor: pointer; color: var(--text-2); }
.seg button[aria-pressed="true"] { background: var(--accent-wash); color: var(--text); font-weight: 600; }

/* multi-select */
.ms { position: relative; }
.ms > .btn { max-width: 220px; }
.ms > .btn .val { overflow: hidden; text-overflow: ellipsis; max-width: 140px; }
.ms > .btn.active { border-color: var(--accent); background: var(--accent-wash); }
.ms .caret { color: var(--muted); font-size: 10px; }
.pop {
  position: absolute; top: calc(100% + 4px); left: 0; z-index: 50; width: 300px; max-width: calc(100vw - 32px);
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.14); padding: 8px;
}
.pop input[type="search"] {
  width: 100%; border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; background: var(--page); margin-bottom: 6px;
}
.pop .opts { max-height: 300px; overflow: auto; }
.pop .opt { display: flex; gap: 8px; align-items: flex-start; padding: 5px 6px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.pop .opt:hover { background: var(--surface-2); }
.pop .opt input { margin-top: 2px; }
.pop .opt small { color: var(--muted); display: block; }
.pop .foot { display: flex; justify-content: space-between; border-top: 1px solid var(--grid); padding-top: 6px; margin-top: 6px; }
.menu { width: auto; min-width: 200px; padding: 4px; }
.menu button { display: block; width: 100%; text-align: left; background: none; border: 0; padding: 7px 10px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.menu button:hover { background: var(--surface-2); }
.right-pop { left: auto; right: 0; }

/* ---------- layout ---------- */
main { max-width: 1440px; margin: 0 auto; padding: 18px 24px 64px; }
.grid { display: grid; gap: 14px; }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.span-2 { grid-column: span 2; }
@media (max-width: 1000px) { .cols-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 720px) {
  .cols-3, .cols-2 { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .filterbar { position: static; }
  .tile.hero .value { font-size: 36px; }
  .topbar, .tabs, .filterbar-inner, main { padding-left: 16px; padding-right: 16px; }
}
.section-gap { margin-top: 14px; }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; min-width: 0;
}
.card-head { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.card-head h2 { font-size: 14px; font-weight: 600; margin: 0; }
.card-head .sub { color: var(--text-2); font-size: 12px; margin-top: 2px; }
.card-head .tools { margin-left: auto; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.chart { width: 100%; height: 300px; }
.chart.tall { height: 360px; }
.note { color: var(--text-2); font-size: 12px; }
.empty { color: var(--muted); padding: 32px 8px; text-align: center; }

/* ---------- KPIs ---------- */
.kpis { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 14px; }
.kpis .tiles { display: contents; }
@media (max-width: 1000px) { .kpis { grid-template-columns: 1fr 1fr; } .kpis .hero { grid-column: span 2; } }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; }
.tile .label { color: var(--text-2); font-size: 12px; }
.tile .value { font-size: 22px; font-weight: 600; margin-top: 2px; letter-spacing: -0.01em; }
.tile .delta { font-size: 12px; margin-top: 2px; color: var(--text-2); }
.tile.hero { grid-row: span 2; display: flex; flex-direction: column; justify-content: center; }
.tile.hero .value { font-size: 44px; line-height: 1.1; }
.up { color: var(--up); }
.down { color: var(--down); }
.flat { color: var(--muted); }
.kpi-grid-rest { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; grid-column: span 3; }

/* ---------- tables ---------- */
.table-wrap { overflow: auto; max-height: 560px; border-radius: 6px; }
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th, table.data td { padding: 7px 10px; border-bottom: 1px solid var(--grid); text-align: left; white-space: nowrap; }
table.data th {
  position: sticky; top: 0; background: var(--surface); z-index: 1; font-weight: 600; color: var(--text-2);
  font-size: 12px; cursor: pointer; user-select: none;
}
table.data th.sorted { color: var(--text); }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data td.name { max-width: 340px; overflow: hidden; text-overflow: ellipsis; }
table.data tr:hover td { background: var(--surface-2); }
table.data tfoot td { font-weight: 600; position: sticky; bottom: 0; background: var(--surface); border-top: 1px solid var(--axis); }
.muted { color: var(--muted); }
.sku { color: var(--muted); font-size: 11px; display: block; }
.table-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; color: var(--text-2); font-size: 12px; }
.searchbox { border: 1px solid var(--border); border-radius: 8px; padding: 5px 8px; background: var(--surface); width: 200px; font-size: 13px; }

.bar-cell { display: flex; align-items: center; gap: 8px; justify-content: flex-end; }
.meter { width: 80px; height: 6px; border-radius: 3px; background: var(--seq-0); overflow: hidden; flex: none; }
.meter > i { display: block; height: 100%; background: var(--accent); border-radius: 3px; }
:root[data-theme="dark"] .meter { background: #1c2b3f; }
@media (prefers-color-scheme: dark) { :root:where(:not([data-theme="light"])) .meter { background: #1c2b3f; } }

.flag { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; }
.flag i { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.flag.critical i { background: var(--critical); }
.flag.warning i { background: var(--warning); }
.flag.serious i { background: var(--serious); }
.flag.good i { background: var(--good); }
.flag.none i { background: var(--axis); }

/* ---------- upload ---------- */
.drop {
  border: 2px dashed var(--axis); border-radius: var(--radius); padding: 36px 16px; text-align: center;
  background: var(--surface); cursor: pointer; transition: border-color 0.15s, background 0.15s;
}
.drop.over { border-color: var(--accent); background: var(--accent-wash); }
.drop strong { display: block; font-size: 15px; margin-bottom: 4px; }
.filelist { list-style: none; padding: 0; margin: 12px 0 0; }
.filelist li { display: flex; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--grid); font-size: 13px; }
.pill { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border); }
.pill.ok { color: var(--up); }
.pill.err { color: var(--down); }
.summary { margin: 12px 0 0; padding-left: 18px; }
.summary li { margin: 4px 0; }
.warn { color: var(--serious); }
.steps { margin: 0; padding-left: 18px; color: var(--text-2); }
.steps li { margin: 6px 0; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 100;
  background: var(--text); color: var(--page); padding: 10px 16px; border-radius: 8px; font-size: 13px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}
.loading { color: var(--muted); padding: 48px; text-align: center; }
.legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--text-2); margin-bottom: 6px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }