/* ============================================================ ClientDrill
   Static demo stylesheet. No external fonts, no imports, no network. */

/* ------------------------------------------------------------- tokens */

:root {
  color-scheme: light;

  --bg:        #fafafa;
  --surface:   #ffffff;
  --surface-2: #f4f5f7;
  --text:      #1a1a2e;
  --muted:     #6b7280;
  --border:    #e5e7eb;
  --border-strong: #d3d7de;

  --accent:        #dc2626;
  --accent-hover:  #b91c1c;
  --accent-ink:    #ffffff;   /* text on an accent-filled surface */
  --accent-wash:   #fdeaea;

  /* chart roles — validated against surface #ffffff (dataviz skill) */
  --chart-base: #2a78d6;
  --chart-emph: #dc2626;
  --chart-grid: #e1e0d9;
  --chart-axis: #c3c2b7;

  /* sequential blue ramp for the heatmap, light -> dark = low -> high */
  /* every step clears 4.5:1 against its own cell text (checked, not eyeballed) */
  --hm-0: #f1f2f4;  --hm-t0: #5b6270;
  --hm-1: #cde2fb;  --hm-t1: #16233a;
  --hm-2: #9ec5f4;  --hm-t2: #16233a;
  --hm-3: #6da7ec;  --hm-t3: #16233a;
  --hm-4: #256abf;  --hm-t4: #ffffff;
  --hm-5: #184f95;  --hm-t5: #ffffff;

  --good:     #15803d;
  --warning:  #b45309;
  --critical: #d03b3b;
  --on-status: #ffffff;   /* ink that sits on a filled status colour */

  --shadow-1: 0 1px 2px rgba(16, 20, 28, .06), 0 1px 3px rgba(16, 20, 28, .05);
  --shadow-2: 0 8px 28px rgba(16, 20, 28, .14);

  --r-card: 8px;
  --r-ctl:  6px;
  --dur: 160ms;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg:        #111318;
    --surface:   #1b1e26;
    --surface-2: #232733;
    --text:      #e8eaf0;
    --muted:     #9aa1ad;
    --border:    #2a2f3a;
    --border-strong: #3a4150;

    --accent:       #f87171;
    --accent-hover: #fca5a5;
    --accent-ink:   #14161c;
    --accent-wash:  #2c1d20;

    --chart-base: #3987e5;
    --chart-emph: #e66767;
    --chart-grid: #2c2f37;
    --chart-axis: #3a4150;

    --hm-0: #23262e;  --hm-t0: #8a92a0;
    --hm-1: #184f95;  --hm-t1: #ffffff;
    --hm-2: #256abf;  --hm-t2: #ffffff;
    --hm-3: #5598e7;  --hm-t3: #10141c;
    --hm-4: #86b6ef;  --hm-t4: #10141c;
    --hm-5: #b7d3f6;  --hm-t5: #10141c;

    --good:     #34d399;
    --warning:  #fbbf24;
    --critical: #f87171;
    --on-status: #10141c;

    --shadow-1: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow-2: 0 10px 34px rgba(0, 0, 0, .55);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg:        #111318;
  --surface:   #1b1e26;
  --surface-2: #232733;
  --text:      #e8eaf0;
  --muted:     #9aa1ad;
  --border:    #2a2f3a;
  --border-strong: #3a4150;

  --accent:       #f87171;
  --accent-hover: #fca5a5;
  --accent-ink:   #14161c;
  --accent-wash:  #2c1d20;

  --chart-base: #3987e5;
  --chart-emph: #e66767;
  --chart-grid: #2c2f37;
  --chart-axis: #3a4150;

  --hm-0: #23262e;  --hm-t0: #8a92a0;
  --hm-1: #184f95;  --hm-t1: #ffffff;
  --hm-2: #256abf;  --hm-t2: #ffffff;
  --hm-3: #5598e7;  --hm-t3: #10141c;
  --hm-4: #86b6ef;  --hm-t4: #10141c;
  --hm-5: #b7d3f6;  --hm-t5: #10141c;

  --good:     #34d399;
  --warning:  #fbbf24;
  --critical: #f87171;
  --on-status: #10141c;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-2: 0 10px 34px rgba(0, 0, 0, .55);
}

/* ------------------------------------------------------------- base */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 650; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.125rem; }
h3 { font-size: 1rem; }
p  { margin: 0; }

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

.skip-link {
  position: absolute; left: 8px; top: -48px; z-index: 90;
  background: var(--surface); color: var(--text);
  padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--r-ctl);
  transition: top var(--dur) ease;
}
.skip-link:focus { top: 8px; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

/* ------------------------------------------------------------ header */

.app-header {
  position: sticky; top: 0; z-index: 40;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 8px 16px;
  display: flex; align-items: center; gap: 24px;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-mark {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px; flex: none;
  border-radius: var(--r-ctl);
  background: var(--accent); color: var(--accent-ink);
  font-weight: 700; font-size: .8125rem; letter-spacing: .02em;
}

.brand-text { display: flex; flex-direction: column; }
.brand-name { font-weight: 700; font-size: 1.0625rem; letter-spacing: -.01em; color: var(--accent); }
.brand-tag  { font-size: .75rem; color: var(--muted); }

.tabs { flex: 1 1 auto; min-width: 0; }

.tablist {
  display: flex; gap: 4px;
  overflow-x: auto; scrollbar-width: thin;
  padding-bottom: 2px;
}

.tab {
  flex: none;
  appearance: none; background: none; border: 0;
  font: inherit; font-size: .9375rem; font-weight: 550;
  color: var(--muted); cursor: pointer;
  padding: 10px 12px; min-height: 40px;
  border-radius: var(--r-ctl);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--dur) ease, background var(--dur) ease;
}
.tab:hover { color: var(--text); background: var(--surface-2); }
.tab[aria-selected="true"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
  border-bottom-left-radius: 0; border-bottom-right-radius: 0;
}

.header-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.whoami { font-size: .8125rem; color: var(--muted); white-space: nowrap; }

.theme-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 40px; padding: 8px 12px;
  font: inherit; font-size: .8125rem;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-ctl);
  cursor: pointer;
  transition: border-color var(--dur) ease, background var(--dur) ease;
}
.theme-toggle:hover { border-color: var(--border-strong); background: var(--surface-2); }
.theme-icon {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--text);
  box-shadow: inset -4px -1px 0 0 var(--surface);
}

/* -------------------------------------------------------------- panels */

.panel[hidden] { display: none; }
.panel { min-height: 60vh; }
.panel:focus { outline: none; }

.panel-head { margin-bottom: 24px; }
.panel-head h1 { margin-bottom: 4px; }
.lede { color: var(--muted); max-width: 74ch; font-size: .9375rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-1);
}

.card-title {
  font-size: .8125rem; font-weight: 650;
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--muted);
  margin: 24px 0 12px;
}
.card-title:first-child { margin-top: 0; }

/* ------------------------------------------------------------- filters */

.filter-row {
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px;
  margin-bottom: 16px;
}

.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.field.grow { flex: 1 1 200px; }
.field > label, .swatch-field > legend {
  font-size: .75rem; font-weight: 600; color: var(--muted);
  letter-spacing: .02em; padding: 0;
}
.field-note { font-size: .75rem; color: var(--muted); margin-top: 4px; }

select, input[type="text"], input[type="search"] {
  font: inherit; font-size: .875rem;
  min-height: 40px; padding: 8px 12px;
  color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r-ctl);
  max-width: 100%;
}
select { padding-right: 28px; cursor: pointer; }
select:hover, input:hover { border-color: var(--border-strong); }

.link-btn {
  appearance: none; background: none; border: 0; padding: 4px;
  font: inherit; font-size: .8125rem; color: var(--accent);
  cursor: pointer; text-decoration: underline;
}
.link-btn:hover { color: var(--accent-hover); }
.reset-btn { min-height: 40px; }

.active-filter {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: .8125rem; color: var(--muted);
  margin-bottom: 12px;
}
.active-filter strong { color: var(--text); font-weight: 600; }
.active-filter[hidden] { display: none; }
.empty-state[hidden] { display: none; }
.stat-row[hidden] { display: none; }

/* ---------------------------------------------------------- stat tiles */

.stat-row {
  display: grid; gap: 12px; margin-bottom: 24px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  padding: 12px 16px;
}
.stat-label { font-size: .75rem; color: var(--muted); }
.stat-value { font-size: 1.75rem; font-weight: 650; letter-spacing: -.02em; line-height: 1.15; }
.stat-note  { font-size: .75rem; color: var(--muted); }

/* -------------------------------------------------------------- tables */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--surface);
}

.data-table {
  width: 100%; min-width: 760px;
  border-collapse: collapse;
  font-size: .875rem;
}
.data-table.compact { min-width: 560px; }

.data-table th, .data-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.data-table thead th {
  position: sticky; top: 0; z-index: 1;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-strong);
  padding: 0;
  white-space: nowrap;
}
.data-table thead th button {
  appearance: none; background: none; border: 0;
  font: inherit; font-size: .75rem; font-weight: 650;
  letter-spacing: .03em; text-transform: uppercase;
  color: var(--muted); cursor: pointer;
  width: 100%; min-height: 40px;
  padding: 10px 12px; text-align: inherit;
  display: inline-flex; align-items: center; gap: 6px;
}
.data-table thead th button:hover { color: var(--text); }
.data-table thead th.plain {
  padding: 10px 12px;
  font-size: .75rem; font-weight: 650;
  letter-spacing: .03em; text-transform: uppercase; color: var(--muted);
}
.data-table thead th.num, .data-table td.num { text-align: right; }
.data-table thead th.num button { justify-content: flex-end; }
.data-table th[aria-sort] button { color: var(--text); }
.data-table th[aria-sort] button::after { content: "\25B2"; font-size: .625rem; }
.data-table th[aria-sort="descending"] button::after { content: "\25BC"; }

.data-table td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.data-table tbody tr { cursor: pointer; }
.data-table tbody tr:hover { background: var(--surface-2); }
.data-table tbody tr:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.data-table tbody tr[data-selected="true"] { background: var(--accent-wash); }
.data-table tbody tr:last-child td { border-bottom: 0; }

.cell-primary { font-weight: 600; display: block; }
.cell-sub { color: var(--muted); font-size: .75rem; display: block; }

.empty-state {
  padding: 32px 16px; text-align: center; color: var(--muted);
  font-size: .875rem;
}

/* meter used inside the completion column */
.meter {
  display: inline-flex; align-items: center; gap: 8px;
  justify-content: flex-end;
}
.meter-track {
  width: 52px; height: 6px; border-radius: 3px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  overflow: hidden; flex: none;
}
.meter-fill { display: block; height: 100%; background: var(--chart-base); }

/* badges */
.badge {
  display: inline-block; font-size: .6875rem; font-weight: 650;
  letter-spacing: .03em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 999px; white-space: nowrap;
  border: 1px solid var(--border-strong); color: var(--muted);
}
.badge-live   { color: var(--good);     border-color: currentColor; }
.badge-draft  { color: var(--muted);    border-color: var(--border-strong); }
.badge-closed { color: var(--muted);    border-color: var(--border-strong); background: var(--surface-2); }
.badge-high   { color: var(--critical); border-color: currentColor; }
.badge-medium { color: var(--warning);  border-color: currentColor; }
.badge-low    { color: var(--muted);    border-color: var(--border-strong); }

/* --------------------------------------------------------- chart cards */

.chart-card { padding: 16px; margin-bottom: 24px; }

.chart-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 16px; flex-wrap: wrap; margin-bottom: 12px;
}
.chart-title { font-size: 1rem; }
.chart-sub { font-size: .8125rem; color: var(--muted); margin-top: 4px; }
.chart-axis-note { font-size: .75rem; color: var(--muted); }

.chart-scroll { overflow-x: auto; }
.chart-scroll > div { min-width: 640px; }
.chart-scroll svg { display: block; width: 100%; height: auto; }

.chart-foot {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap; margin-top: 12px;
}

.scale-legend { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.scale-item { display: inline-flex; align-items: center; gap: 4px; font-size: .6875rem; color: var(--muted); }
.scale-swatch {
  width: 22px; height: 12px; border-radius: 2px;
  border: 1px solid var(--border);
}
.scale-caption { font-size: .6875rem; color: var(--muted); margin-right: 4px; }

#hm-table { margin-top: 16px; }

/* heatmap cell interactions */
.hm-cell { cursor: pointer; }
.hm-cell rect { transition: opacity var(--dur) ease; }
.hm-cell rect.hm-focus { opacity: 0; }
.hm-cell:hover rect.hm-fill { opacity: .82; }
.hm-cell:focus { outline: none; }
.hm-cell:focus-visible rect.hm-focus,
.hm-cell.is-selected rect.hm-focus { opacity: 1; }
.hm-label { font-size: 12px; fill: var(--muted); }
.hm-label-strong { font-size: 12px; fill: var(--text); font-weight: 600; }
.hm-value { font-size: 12px; font-variant-numeric: tabular-nums; pointer-events: none; }
.hm-total { font-size: 12px; fill: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }

/* step-failure bar chart in the detail panel */
.mini-chart-scroll { overflow-x: auto; }
.mini-chart-scroll > svg { display: block; width: 100%; min-width: 440px; height: auto; }
.bar-label { font-size: 11.5px; fill: var(--muted); }
.bar-value { font-size: 11.5px; fill: var(--text); font-variant-numeric: tabular-nums; }
.bar-value.is-emph { font-weight: 650; }
.bar-hit { fill: transparent; cursor: default; }
.bar-row:hover .bar-mark { opacity: .85; }

/* ------------------------------------------------------------ tooltip */

.tooltip {
  position: fixed; z-index: 80; pointer-events: none;
  max-width: 260px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-ctl);
  box-shadow: var(--shadow-2);
  padding: 8px 12px;
  font-size: .8125rem;
  line-height: 1.4;
}
.tooltip[hidden] { display: none; }
.tt-value { font-weight: 650; font-size: .9375rem; display: block; }
.tt-label { color: var(--muted); display: block; }

/* ------------------------------------------------------------ buttons */

.btn {
  appearance: none; font: inherit; font-size: .875rem; font-weight: 550;
  min-height: 40px; padding: 8px 16px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: var(--r-ctl);
  cursor: pointer;
  transition: background var(--dur) ease, border-color var(--dur) ease;
}
.btn:hover { background: var(--surface-2); }
.btn-small { min-height: 34px; padding: 6px 12px; font-size: .8125rem; }

.btn-primary {
  background: var(--accent); color: var(--accent-ink);
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.icon-btn {
  appearance: none; background: none; border: 0;
  font-size: 1.5rem; line-height: 1;
  width: 40px; height: 40px; flex: none;
  display: grid; place-items: center;
  color: var(--muted); cursor: pointer; border-radius: var(--r-ctl);
}
.icon-btn:hover { color: var(--text); background: var(--surface-2); }
.icon-btn.on-brand { color: #ffffff; }
.icon-btn.on-brand:hover { color: #ffffff; background: rgba(255, 255, 255, .18); }

/* ------------------------------------------------------- drill builder */

.builder-grid {
  display: grid; gap: 24px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  align-items: start;
}

.builder-preview { min-width: 0; }
.builder-form { padding: 16px; }
.builder-form .field { margin-bottom: 12px; }

.swatch-field { border: 0; padding: 0; margin: 0 0 12px; }
.swatches { display: flex; flex-wrap: wrap; gap: 8px; }

.swatch {
  appearance: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 40px; padding: 6px 12px 6px 8px;
  font: inherit; font-size: .8125rem;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-ctl);
}
.swatch:hover { border-color: var(--border-strong); }
.swatch[aria-checked="true"] { border-color: var(--text); box-shadow: inset 0 0 0 1px var(--text); }
.swatch-dot { width: 16px; height: 16px; border-radius: 4px; flex: none; }

.toggles { display: flex; flex-direction: column; gap: 8px; }

.toggle {
  position: relative;
  display: flex; align-items: flex-start; gap: 12px;
  padding: 8px; min-height: 40px;
  border: 1px solid var(--border); border-radius: var(--r-ctl);
  cursor: pointer;
}
.toggle:hover { background: var(--surface-2); }
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-ui {
  margin-top: 2px; flex: none;
  width: 34px; height: 20px; border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  position: relative;
  transition: background var(--dur) ease, border-color var(--dur) ease;
}
.toggle-ui::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--muted);
  transition: transform var(--dur) ease, background var(--dur) ease;
}
.toggle input:checked + .toggle-ui { background: var(--accent); border-color: var(--accent); }
.toggle input:checked + .toggle-ui::after { transform: translateX(14px); background: var(--accent-ink); }
.toggle input:focus-visible + .toggle-ui { outline: 2px solid var(--accent); outline-offset: 2px; }
.toggle-text { font-size: .875rem; display: flex; flex-direction: column; }
.toggle-text small { color: var(--muted); font-size: .75rem; }

.builder-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

/* the branded client preview card */
.intro-card { overflow: hidden; padding: 0; }
.intro-band {
  padding: 16px; color: #ffffff;
  background: #dc2626;
  display: flex; flex-direction: column; gap: 4px;
}
.intro-firm { font-weight: 700; font-size: 1.0625rem; letter-spacing: -.01em; }
.intro-kicker { font-size: .75rem; opacity: .9; }
.intro-body { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.intro-eyebrow {
  font-size: .6875rem; font-weight: 650; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted);
}
.intro-title { font-size: 1.25rem; }
.intro-blurb { font-size: .875rem; color: var(--muted); }

.intro-meta {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px;
  margin: 0; padding: 12px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.intro-meta dt { font-size: .6875rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.intro-meta dd { margin: 0; font-size: .875rem; font-weight: 550; }

.chip-list { display: flex; flex-wrap: wrap; gap: 4px; list-style: none; margin: 0; padding: 0; }
.chip {
  font-size: .6875rem; padding: 3px 8px; border-radius: 999px;
  background: var(--surface-2); color: var(--muted);
  border: 1px solid var(--border);
}

.intro-cta {
  font: inherit; font-size: .875rem; font-weight: 600;
  min-height: 40px; padding: 8px 16px;
  border: 0; border-radius: var(--r-ctl);
  background: #dc2626; color: #ffffff;
  cursor: not-allowed; opacity: .95;
}
.intro-foot { font-size: .6875rem; color: var(--muted); }

/* ----------------------------------------------------- slide-over ---- */

.overlay {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(12, 14, 20, .5);
}
.overlay[hidden] { display: none; }

.slideover {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 60;
  width: min(560px, 100%);
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow-2);
  display: flex; flex-direction: column;
  animation: slide-in var(--dur) ease-out;
}
.slideover[hidden] { display: none; }

@keyframes slide-in { from { transform: translateX(24px); opacity: 0; } to { transform: none; opacity: 1; } }

.slideover-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
  padding: 16px; border-bottom: 1px solid var(--border);
}
.slideover-kicker { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.slideover-body { padding: 16px; overflow-y: auto; flex: 1; }

.detail-meta {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px; margin: 0 0 24px;
}
.detail-meta dt { font-size: .6875rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.detail-meta dd { margin: 0; font-size: .875rem; font-weight: 550; }

.section-title {
  font-size: .8125rem; font-weight: 650; text-transform: uppercase;
  letter-spacing: .06em; color: var(--muted); margin: 24px 0 8px;
}
.section-title:first-child { margin-top: 0; }
.section-sub { font-size: .75rem; color: var(--muted); margin-bottom: 8px; }

.signal-callout {
  border: 1px solid var(--accent);
  border-left-width: 4px;
  border-radius: var(--r-ctl);
  background: var(--accent-wash);
  padding: 12px 16px;
}
.signal-callout h4 {
  font-size: .6875rem; text-transform: uppercase; letter-spacing: .06em;
  color: var(--accent); margin-bottom: 4px;
}
.signal-callout p { font-size: .875rem; }
.signal-callout p + p { margin-top: 8px; }
.signal-callout .cta-line { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.mini-scroll { max-height: 260px; overflow-y: auto; border: 1px solid var(--border); border-radius: var(--r-card); }
.mini-scroll .data-table { min-width: 380px; }
.mini-scroll .data-table tbody tr { cursor: default; }

/* --------------------------------------------------------- drill modal */

.modal {
  position: fixed; inset: 0; z-index: 70;
  display: grid; place-items: center;
  padding: 16px;
  background: rgba(12, 14, 20, .55);
}
.modal[hidden] { display: none; }

.modal-card {
  width: min(680px, 100%);
  max-height: min(88vh, 780px);
  display: flex; flex-direction: column;
  background: var(--surface);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-2);
  overflow: hidden;
  animation: pop-in var(--dur) ease-out;
}
@keyframes pop-in { from { transform: scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }

.modal-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
  padding: 16px; color: #ffffff; background: #dc2626;
}
.modal-firm { font-size: .75rem; opacity: .92; }
.modal-head h2 { font-size: 1.125rem; }

.modal-progress { display: flex; gap: 4px; padding: 0 16px; background: var(--surface); margin-top: 12px; }
.step-pip {
  flex: 1; height: 4px; border-radius: 2px;
  background: var(--surface-2); border: 1px solid var(--border);
}
.step-pip.is-done { background: var(--accent); border-color: var(--accent); }
.step-pip.is-current { background: var(--accent); border-color: var(--accent); opacity: .55; }

.modal-body { padding: 16px; overflow-y: auto; flex: 1; }

.drill-step-meta {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  font-size: .75rem; color: var(--muted);
  text-transform: uppercase; letter-spacing: .05em; font-weight: 600;
  margin-bottom: 8px;
}
.drill-clock { font-variant-numeric: tabular-nums; color: var(--text); }
.drill-heading { font-size: 1.125rem; margin-bottom: 8px; }
.drill-situation { font-size: .9375rem; margin-bottom: 16px; }

.option-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }

.option {
  appearance: none; text-align: left; font: inherit; font-size: .875rem;
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px; min-height: 40px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-ctl);
  cursor: pointer;
  transition: border-color var(--dur) ease, background var(--dur) ease;
}
.option:hover:not(:disabled) { border-color: var(--accent); background: var(--surface-2); }
.option:disabled { cursor: default; }
.option-key {
  flex: none; width: 22px; height: 22px; border-radius: var(--r-ctl);
  display: grid; place-items: center;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: .75rem; font-weight: 650; color: var(--muted);
}
.option.is-correct { border-color: var(--good); background: var(--surface); box-shadow: inset 0 0 0 1px var(--good); }
.option.is-correct .option-key { background: var(--good); border-color: var(--good); color: var(--on-status); }
.option.is-wrong { border-color: var(--critical); box-shadow: inset 0 0 0 1px var(--critical); }
.option.is-wrong .option-key { background: var(--critical); border-color: var(--critical); color: var(--on-status); }
.option.is-dim { opacity: .55; }

.feedback {
  border: 1px solid var(--border); border-left-width: 4px;
  border-radius: var(--r-ctl); padding: 12px 16px; margin-bottom: 16px;
  background: var(--surface-2);
}
.feedback.ok    { border-left-color: var(--good); }
.feedback.bad   { border-left-color: var(--critical); }
.feedback-head { display: flex; align-items: center; gap: 8px; font-weight: 650; font-size: .875rem; margin-bottom: 4px; }
.feedback.ok  .feedback-head { color: var(--good); }
.feedback.bad .feedback-head { color: var(--critical); }
.feedback p { font-size: .875rem; }
.feedback .why { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin-bottom: 4px; }

.drill-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* score screen */
.score-wrap { text-align: center; padding: 12px 0 24px; }
.score-value { font-size: 3rem; font-weight: 700; letter-spacing: -.03em; line-height: 1.05; }
.score-of { font-size: 1.25rem; color: var(--muted); font-weight: 600; }
.score-verdict { font-size: 1rem; font-weight: 600; margin-top: 4px; }
.score-blurb { font-size: .875rem; color: var(--muted); margin-top: 8px; max-width: 46ch; margin-left: auto; margin-right: auto; }

.recap { list-style: none; margin: 0 0 24px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.recap li {
  display: flex; gap: 12px; align-items: flex-start;
  border: 1px solid var(--border); border-radius: var(--r-ctl); padding: 12px;
}
.recap-mark {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center; font-size: .75rem; font-weight: 700; color: var(--on-status);
}
.recap-mark.ok  { background: var(--good); }
.recap-mark.bad { background: var(--critical); }
.recap-title { font-size: .875rem; font-weight: 600; }
.recap-note  { font-size: .8125rem; color: var(--muted); }

.reward-row { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-bottom: 24px; }
.reward {
  border: 1px solid var(--border); border-radius: var(--r-ctl); padding: 12px;
}
.reward h4 { font-size: .6875rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 8px; }
.reward-big { font-size: 1.5rem; font-weight: 650; letter-spacing: -.02em; }
.lb { list-style: none; margin: 0; padding: 0; font-size: .8125rem; }
.lb li { display: flex; justify-content: space-between; gap: 8px; padding: 2px 0; }
.lb .lb-score { font-variant-numeric: tabular-nums; color: var(--muted); }
.lb li.is-you { font-weight: 650; }

.debrief-cta {
  border: 1px solid var(--accent); border-radius: var(--r-ctl);
  background: var(--accent-wash); padding: 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-bottom: 24px;
}
.debrief-cta p { font-size: .875rem; }
.debrief-cta strong { display: block; }

/* ------------------------------------------------------------- prose */

.prose { padding: 24px; max-width: 78ch; }
.prose h2 { font-size: 1.0625rem; margin: 24px 0 8px; }
.prose h2:first-child { margin-top: 0; }
.prose p { margin-bottom: 12px; font-size: .9375rem; }
.prose p:last-child { margin-bottom: 0; }

/* ------------------------------------------------------------ footer */

.app-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: 16px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: .8125rem; color: var(--muted);
}

/* --------------------------------------------------------- responsive */

@media (max-width: 960px) {
  .builder-grid { grid-template-columns: minmax(0, 1fr); }
  .whoami { display: none; }
}

@media (max-width: 720px) {
  .header-inner { gap: 8px; padding: 8px 12px; }
  .brand-tag { display: none; }
  .tabs { order: 3; flex-basis: 100%; }
  .header-right { margin-left: auto; }
  .container { padding: 16px 12px 32px; }
  h1 { font-size: 1.25rem; }
  .slideover { width: 100%; }
  .stat-row { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
  .filter-row > .field { flex: 1 1 140px; }
  .intro-meta { grid-template-columns: 1fr; }
  /* keep inline text buttons at a 40px tap target on touch widths */
  .link-btn { display: inline-flex; align-items: center; min-height: 40px; padding: 8px; }
}

@media (max-width: 420px) {
  .stat-row { grid-template-columns: 1fr 1fr; }
  .modal { padding: 0; }
  .modal-card { max-height: 100vh; height: 100%; border-radius: 0; width: 100%; }
  .score-value { font-size: 2.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .app-header, .app-footer, .filter-row, .overlay, .slideover, .modal { display: none !important; }
}