/* ============================================================
 * Utilities Bunker — Flicker Index (Approx) v2.1
 * File: /assets/css/modules/electronics/flicker.v2.1.css
 * Purpose:
 * - Tool-only layout + waveform preview styling + work formatting
 * - NO changes to ub-toolkit.v2.1.css
 * - Mobile-first, 44x44 touch targets, clamp typography
 * ============================================================ */

/* ============================== Local tokens (tool-scoped) ============================== */
:root{
  --flk-radius: 16px;
  --flk-gap: 14px;
}

/* ============================== Header row helpers ============================== */
.ub-headrow{
  display:flex;
  gap:10px;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
}
.ub-title{ margin:0; font-size:var(--ub-fs-5); }
.ub-subtitle{ margin:6px 0 0; }

/* ============================== How-to list spacing ============================== */
.ub-steps{
  margin:0;
  padding-left:18px;
}
.ub-steps li{ margin:6px 0; }

/* ============================== Tool hero layout ============================== */
.ub-hero{
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--flk-gap);
}
@media (max-width: 980px){
  .ub-hero{ grid-template-columns: 1fr; }
}

/* ============================== Preview "lab" panel ============================== */
.ub-lab{
  background: var(--ub-surface-2);
  border: 1px solid var(--ub-border);
  border-radius: var(--flk-radius);
  padding: 12px;
}
.ub-lab-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap: 10px;
  flex-wrap:wrap;
  margin-bottom: 8px;
}
.ub-lab-title{
  font-size: clamp(13px, 1.2vw, 14px);
  font-weight: 950;
  letter-spacing: .01em;
}
.ub-lab-sub{
  font-size: 12px;
  color: var(--ub-muted);
  margin-top: 2px;
}

/* ============================== KPI tiles ============================== */
.ub-kpis{
  display:flex;
  flex-wrap:wrap;
  gap: 8px;
  justify-content:flex-end;
}
.ub-kpi{
  min-width: 130px;
  padding: 8px 10px;
  border-radius: 14px;
  border: 1px solid var(--ub-border);
  background: var(--ub-card-bg);
}
.ub-kpi .k{
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ub-muted);
}
.ub-kpi .v{
  font-family: var(--ub-mono);
  font-weight: 950;
  font-size: 14px;
  margin-top: 2px;
}

/* ============================== Risk pill + dot ============================== */
.ub-risk{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--ub-border);
  background: var(--ub-card-bg);
  font-size: 12px;
  font-weight: 950;
  min-height: 44px;
  margin-top: 6px;
}
.ub-dot{
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ub-muted);
}
/* Optional risk colors (heuristic) */
.ub-dot[data-level="low"]{ background: var(--ub-success); }
.ub-dot[data-level="med"]{ background: var(--ub-warning); }
.ub-dot[data-level="high"]{ background: #fb7185; } /* rose-400-ish */
.ub-dot[data-level="vhigh"]{ background: var(--ub-danger); }

/* ============================== Waveform chart ============================== */
.ub-chart{
  width: 100%;
  height: auto;
  display:block;
  margin-top: 10px;
  border-radius: 14px;
}
.ub-chart-frame{
  fill: rgba(0,0,0,.02);
  stroke: rgba(0,0,0,.10);
}
html.ub-theme-dark .ub-chart-frame{
  fill: rgba(255,255,255,.03);
  stroke: rgba(255,255,255,.12);
}

.ub-axis{
  font-family: var(--ub-mono);
  font-size: 12px;
  fill: rgba(0,0,0,.55);
}
html.ub-theme-dark .ub-axis{
  fill: rgba(255,255,255,.55);
}

.ub-avg-line{
  stroke: rgba(0,0,0,.35);
  stroke-width: 2;
  stroke-dasharray: 6 6;
}
html.ub-theme-dark .ub-avg-line{
  stroke: rgba(255,255,255,.35);
}

.ub-avg-label{
  font-family: var(--ub-mono);
  font-size: 12px;
  fill: rgba(0,0,0,.60);
}
html.ub-theme-dark .ub-avg-label{
  fill: rgba(255,255,255,.60);
}

.ub-wave{
  fill: none;
  stroke: rgba(249,58,19,.75);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 2px 10px rgba(249,58,19,.18));
}

.ub-fill-above{
  fill: rgba(249,58,19,.12);
  stroke: none;
}

/* ============================== Work area formatting ============================== */
.ub-work{
  font-family: var(--ub-mono);
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap:anywhere;
}

/* ============================== FAQ helpers (tool-only) ============================== */
.ub-q{
  margin:12px 0 6px;
  font-size: var(--ub-fs-2);
  font-weight: 950;
}
.ub-a{
  margin:0 0 10px;
}

/* ============================== Inputs tweaks (tool-only) ============================== */
#customSeries{
  font-family: var(--ub-mono);
  font-size: 13px;
}

/* ============================== Small screen polish ============================== */
@media (max-width: 520px){
  .ub-kpi{ min-width: 120px; }
}