/* Filter-impact section (Workstream A). Styled against the dashboard's :root
   tokens (see styles.css) so it reads as a native card in both themes:
   --font-sans for text, --font-mono for numbers only. */

#filter-impact {
  margin: 0 32px 32px;
  padding: 18px 20px 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--text);
  font-family: var(--font-sans);
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}
#filter-impact:empty { display: none; }

#filter-impact .fi-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-strong);
  line-height: 1.3;
}
#filter-impact .fi-title-sub { color: var(--muted); font-weight: 500; }
#filter-impact .fi-sub { font-size: 0.82rem; color: var(--muted); line-height: 1.55; margin-top: 4px; }
#filter-impact .fi-muted { color: var(--muted); }
#filter-impact .fi-small { font-size: 0.72rem; font-family: var(--font-sans); }

/* Controls — same surface as the main control bar's inputs */
#filter-impact .fi-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  align-items: center;
  padding: 12px 14px;
  background: color-mix(in srgb, var(--bg3) 45%, var(--card));
  border: 1px solid var(--border);
  border-radius: 10px;
}
#filter-impact .fi-ctl { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-width: 0; }
#filter-impact .fi-input {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  padding: 6px 8px;
  min-height: 34px;
  border-radius: 8px;
  min-width: 0;
}
#filter-impact .fi-input[type="number"] { font-family: var(--font-mono); }
#filter-impact .fi-input:hover { border-color: var(--muted); }
#filter-impact .fi-input:focus { outline: none; border-color: var(--accent); box-shadow: var(--focus); }
#filter-impact .fi-input:disabled { opacity: 0.5; }
#filter-impact .fi-num { width: 4.5em; }
/* Unit label: keep "µg/m³" as written (ctrl-label is uppercased). */
#filter-impact .fi-check > .ctrl-label:last-child { text-transform: none; letter-spacing: 0; }
#filter-impact .fi-check input[type="checkbox"] { accent-color: var(--accent); width: 16px; height: 16px; }

/* Headline cards */
#filter-impact .fi-cards-head { font-size: 0.82rem; color: var(--muted); margin-bottom: 10px; line-height: 1.55; }
#filter-impact .fi-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 12px;
}
#filter-impact .fi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 12px 14px;
  min-width: 0;
}
#filter-impact .fi-card-title {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 8px;
}
#filter-impact .fi-card-title .fi-muted { font-weight: 400; }
#filter-impact .fi-card-row {
  display: grid;
  grid-template-columns: 6.5em minmax(0, 1fr);
  gap: 0 8px;
  font-size: 0.86rem;
  padding: 4px 0;
}
#filter-impact .fi-card-row + .fi-card-row { border-top: 1px solid var(--border); }
#filter-impact .fi-card-k { color: var(--muted); font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; align-self: center; }
#filter-impact .fi-card-v { font-family: var(--font-mono); color: var(--text); min-width: 0; }
#filter-impact .fi-card-v strong { color: var(--text-strong); font-weight: 600; }
#filter-impact .fi-card-d { grid-column: 2; font-family: var(--font-mono); font-size: 0.76rem; }
#filter-impact .fi-card-foot { font-size: 0.74rem; color: var(--muted); margin-top: 8px; line-height: 1.55; }

#filter-impact .fi-warn {
  font-size: 0.82rem;
  line-height: 1.55;
  margin: 10px 0;
  padding: 8px 12px;
  background: color-mix(in srgb, var(--warn) 10%, var(--card));
  border: 1px solid color-mix(in srgb, var(--warn) 45%, var(--border));
  border-radius: 8px;
  color: var(--text);
}

/* Panels and tables */
#filter-impact .fi-panel { border-top: 1px solid var(--border); padding-top: 16px; min-width: 0; }
#filter-impact .fi-panel-title {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 6px;
}
#filter-impact .fi-sentence {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text-2);
  margin: 10px 0;
  padding: 6px 0 6px 12px;
  border-left: 3px solid var(--accent);
}
#filter-impact .fi-sentence strong, #filter-impact .fi-sentence b { color: var(--text-strong); }
#filter-impact .fi-sector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 14px 22px;
  margin-top: 12px;
}
#filter-impact .fi-sector-block { min-width: 0; }
#filter-impact .fi-scroll { overflow-x: auto; max-width: 100%; margin-bottom: 12px; -webkit-overflow-scrolling: touch; }
/* Matches .coverage-stats */
#filter-impact .fi-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.76rem;
}
#filter-impact .fi-table th,
#filter-impact .fi-table td {
  padding: 8px 10px;
  text-align: right;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
#filter-impact .fi-table th:first-child,
#filter-impact .fi-table td:first-child { text-align: left; font-family: var(--font-sans); }
#filter-impact .fi-table th {
  font-family: var(--font-sans);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
#filter-impact .fi-table td { color: var(--text); }
#filter-impact .fi-table tbody tr:hover td { background: var(--bg3); }
#filter-impact .fi-table tr.fi-hl td { background: var(--accent-soft); }
#filter-impact .fi-table tr.fi-hl td:first-child { box-shadow: inset 3px 0 0 var(--accent); }

/* Charts — nested cards inside the section card */
#filter-impact .fi-charts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
#filter-impact .fi-chart { min-width: 0; overflow: hidden; border-radius: 10px; }
#filter-impact .fi-wide { grid-column: 1 / -1; }
/* In-flow title (instead of the dashboard's absolute .chart-label) so a title
   that wraps on narrow screens pushes the plot down rather than overlapping it.
   The negative margin hands back most of the SVG's built-in top margin. */
#filter-impact .chart-label {
  position: static;
  padding: 10px 16px 0;
  font-size: 0.86rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-strong);
}
#filter-impact .fi-chart > svg { margin-top: -20px; }
#filter-impact .fi-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding: 8px 16px 10px;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg3) 45%, var(--card));
  font-size: 0.74rem;
  color: var(--text-2);
}
#filter-impact .fi-leg { display: inline-flex; align-items: center; gap: 6px; }
#filter-impact .fi-leg-line { width: 18px; height: 0; border-top: 2px solid var(--muted); }
#filter-impact .fi-leg-line.fi-dashed { border-top-style: dashed; }

/* Caveats */
#filter-impact .fi-list { padding-left: 18px; font-size: 0.84rem; line-height: 1.65; color: var(--text-2); }
#filter-impact .fi-list li + li { margin-top: 4px; }
#filter-impact .fi-list strong { color: var(--text-strong); font-weight: 600; }

@media (max-width: 760px) {
  #filter-impact .fi-charts { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  #filter-impact { margin: 0 12px 24px; padding: 14px 12px 18px; gap: 14px; }
  #filter-impact .fi-controls { padding: 10px; gap: 10px 14px; }
}
#filter-impact .wind-source-note { margin-top: 10px; }