:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --card: #ffffff;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --wash: #f0efec;
  --accent: #2a78d6;
  --good: #0ca30c;
  --good-text: #006300;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --critical-text: #b42323;
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --s5: #e87ba4; --s6: #008300; --s7: #6250d6; --s8: #e34948;
  --seq-1: #cde2fb; --seq-2: #9ec5f4; --seq-3: #6da7ec; --seq-4: #3987e5; --seq-5: #256abf; --seq-6: #184f95;
  --radius: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --card: #1a1a19;
  --ink: #f0efec;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --wash: #262624;
  --accent: #3987e5;
  --good-text: #0ca30c;
  --critical-text: #e66767;
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--ink); line-height: 1.45; }
a { color: var(--accent); }
h1, h2, h3 { margin: 0; font-weight: 650; }
h2 { font-size: 17px; }
h3 { font-size: 14px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.hidden { display: none !important; }

/* Login */
.login-body { display: grid; place-items: center; min-height: 100vh; }
.login-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 32px; width: min(380px, 92vw); }
.login-card h1 { font-size: 22px; }
.login-card form { display: grid; gap: 14px; margin-top: 18px; }
.login-card label { display: grid; gap: 4px; font-size: 13px; color: var(--ink-2); }
.login-error { color: var(--critical-text); background: color-mix(in srgb, var(--critical) 10%, transparent); padding: 8px 10px; border-radius: 8px; }

/* Inputs & buttons */
input, select, textarea { font: inherit; color: var(--ink); background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; }
textarea { min-height: 80px; resize: vertical; }
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.btn { font: inherit; border: 1px solid var(--border); background: var(--card); color: var(--ink); border-radius: 8px; padding: 6px 12px; cursor: pointer; }
.btn:hover { background: var(--wash); }
.btn-primary { background: var(--ink); color: var(--page); border-color: var(--ink); }
.btn-primary:hover { background: var(--ink-2); }
.btn-danger { color: var(--critical-text); }
.btn-sm { padding: 3px 9px; font-size: 12px; }

/* Shell */
.topbar { display: flex; align-items: center; gap: 14px; padding: 12px 24px; border-bottom: 1px solid var(--border); background: var(--card); position: sticky; top: 0; z-index: 5; }
.topbar h1 { font-size: 15px; }
.topbar .spacer { flex: 1; }
.demo-banner { background: color-mix(in srgb, var(--warning) 22%, var(--card)); border-bottom: 1px solid var(--border); padding: 8px 24px; display: flex; gap: 12px; align-items: center; font-size: 13px; }
.controls { padding: 14px 24px 0; display: grid; gap: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); background: var(--card); border-radius: 999px; padding: 4px 12px; font-size: 13px; cursor: pointer; color: var(--ink); }
.chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--page); border-color: var(--ink); }
.chip[aria-pressed="true"] .dot { background: var(--page); }
.filter-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.tabs { display: flex; flex-wrap: wrap; gap: 2px 18px; border-bottom: 1px solid var(--border); padding: 0 24px; margin-top: 12px; }
.tab { background: none; border: 0; padding: 10px 0; font: inherit; font-weight: 550; color: var(--ink-2); cursor: pointer; border-bottom: 2px solid transparent; }
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--ink); }
.tab-group-gap { width: 1px; background: var(--border); margin: 10px 0; }
main.view { padding: 20px 24px 60px; display: grid; gap: 18px; max-width: 1500px; }

/* Cards & grids */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; min-width: 0; }
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.card-head p { margin: 2px 0 0; }
.grid { display: grid; gap: 14px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); }
.tiles { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.tile { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.tile .label { font-size: 12px; color: var(--ink-2); display: flex; gap: 4px; align-items: center; }
.tile .value { font-size: 26px; font-weight: 650; margin-top: 4px; }
.tile .delta { font-size: 12px; margin-top: 2px; color: var(--ink-2); }
.delta.good { color: var(--good-text); }
.delta.bad { color: var(--critical-text); }
.info { cursor: help; color: var(--muted); border: 1px solid var(--axis); border-radius: 50%; width: 14px; height: 14px; display: inline-grid; place-items: center; font-size: 10px; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th { text-align: left; font-weight: 600; color: var(--ink-2); font-size: 12px; padding: 8px 10px; border-bottom: 1px solid var(--axis); white-space: nowrap; }
th.num { text-align: right; }
td { padding: 8px 10px; border-bottom: 1px solid var(--grid); vertical-align: top; }
tr:hover td { background: var(--wash); }
th[data-sort] { cursor: pointer; }
td.group { font-weight: 600; background: var(--wash); }

/* Badges & verdicts */
.badge { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 2px 7px; border-radius: 5px; border: 1px solid currentColor; white-space: nowrap; }
.badge.brand { color: var(--ink-2); font-weight: 600; }
.badge.green { color: var(--good-text); border-color: color-mix(in srgb, var(--good) 45%, transparent); background: color-mix(in srgb, var(--good) 8%, transparent); }
.badge.orange { color: #a4521f; border-color: color-mix(in srgb, var(--serious) 55%, transparent); background: color-mix(in srgb, var(--serious) 10%, transparent); }
:root[data-theme="dark"] .badge.orange { color: var(--serious); }
.badge.red { color: var(--critical-text); border-color: color-mix(in srgb, var(--critical) 45%, transparent); background: color-mix(in srgb, var(--critical) 8%, transparent); }
.badge.gray { color: var(--ink-2); border-color: var(--axis); }
.badge.blue { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); background: color-mix(in srgb, var(--accent) 8%, transparent); }

/* Ad copy cards */
.copy-card { display: grid; gap: 10px; align-content: start; }
.copy-card .tags { display: flex; justify-content: space-between; gap: 8px; }
.copy-card .body { background: var(--wash); border-radius: 8px; padding: 12px 14px; white-space: pre-wrap; }
.copy-card .meta { color: var(--ink-2); font-size: 13px; }
.copy-card .note { color: var(--muted); font-size: 13px; }
.copy-card .actions { display: flex; gap: 6px; }
.copy-card .perf { display: flex; gap: 14px; font-size: 12px; color: var(--ink-2); }

/* Charts */
.chart { position: relative; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; }
.chart .tick { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .dlabel { fill: var(--ink-2); font-size: 11px; font-weight: 600; }
.chart .hit { fill: transparent; cursor: crosshair; }
.chart .crosshair { stroke: var(--axis); stroke-width: 1; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--ink-2); margin-top: 8px; }
.legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
.tooltip { position: fixed; pointer-events: none; background: var(--ink); color: var(--page); padding: 7px 10px; border-radius: 7px; font-size: 12px; z-index: 50; max-width: 280px; box-shadow: 0 4px 14px rgba(0,0,0,.18); }
.tooltip b { font-weight: 650; }
.empty { color: var(--muted); padding: 24px; text-align: center; border: 1px dashed var(--axis); border-radius: var(--radius); }
.spark { width: 90px; height: 24px; }
.spark path { fill: none; stroke: var(--s1); stroke-width: 1.5; }

/* Forms / dialogs */
dialog { border: 1px solid var(--border); border-radius: 14px; padding: 0; width: min(640px, 94vw); background: var(--card); color: var(--ink); }
dialog::backdrop { background: rgba(0,0,0,.35); }
dialog form { padding: 20px; display: grid; gap: 12px; }
dialog .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }
dialog label { display: grid; gap: 3px; font-size: 12px; color: var(--ink-2); }
dialog label.wide { grid-column: 1 / -1; }
dialog .dialog-actions { display: flex; justify-content: flex-end; gap: 8px; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar .spacer { flex: 1; }
.list { display: grid; gap: 10px; }
.callout { border-left: 3px solid var(--accent); background: var(--wash); padding: 10px 14px; border-radius: 0 8px 8px 0; font-size: 13px; }
.rec { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: start; padding: 12px 0; border-bottom: 1px solid var(--grid); }
.rec:last-child { border-bottom: 0; }
.rec .why { color: var(--ink-2); font-size: 13px; }
.pill-ok::before { content: "✓ "; }
.progress { height: 6px; background: var(--wash); border-radius: 3px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--s1); border-radius: 3px; }
@media (max-width: 700px) {
  .grid-2 { grid-template-columns: 1fr; }
  dialog .form-grid { grid-template-columns: 1fr; }
  .topbar, .controls, .tabs, main.view { padding-left: 12px; padding-right: 12px; }
}
@media print { .topbar, .controls, .tabs, .demo-banner { display: none; } }

/* Additions for app.js */
tr.clickable { cursor: pointer; }
tfoot td { border-top: 1px solid var(--axis); border-bottom: 0; }
.dot.chip-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); vertical-align: 1px; }
.demo-banner .spacer { flex: 1; }
.funnel-row { display: grid; gap: 4px; padding: 6px 0; }
.funnel-row.worst .progress > span { background: var(--serious); }
.funnel-label { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; }
.form-grid.mapping { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px 12px; margin: 8px 0; }
.form-grid.mapping label { display: grid; gap: 3px; }
.dialog-actions .spacer { flex: 1; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--wash); padding: 1px 5px; border-radius: 4px; }
h3 { margin: 12px 0 6px; }
.copy-card h3 { margin: 0; }
td[data-bg] { font-weight: 600; }
a.tab { text-decoration: none; }
.grid { align-items: start; }