/* ============================================================
   SIGNAL REPORT — Interactive Chart Styles
   Three-panel: OWASP (warm), MITRE (cool), Geographic (neutral)
   Companion to signal-charts.html partial
   ============================================================ */

/* ── Chart Section Container ── */
.signal-charts {
  margin: var(--space-xl) 0;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.signal-charts__title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--deep-signal-color);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.signal-charts__title::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--deep-signal-color);
  animation: pulse 1.5s ease infinite;
}

.signal-charts__stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

/* ── Individual Chart Container (light, crisp, presentation-quality) ── */
.signal-chart {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  overflow: hidden;
  overflow-x: auto;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.signal-chart:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

/* ── Accent left-borders per chart type ── */
.signal-chart--warm {
  border-left: 4px solid #E63946;
}

.signal-chart--cool {
  border-left: 4px solid #264653;
}

.signal-chart--geo {
  border-left: 4px solid #475569;
}

/* ── Chart Header ── */
.signal-chart__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: #F8FAFC;
  border-bottom: 1px solid #E2E8F0;
}

.signal-chart__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #1E293B;
}

.signal-chart__badge {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 600;
}

.signal-chart__badge--warm {
  background: #FEF2F2;
  color: #DC2626;
  border: 1px solid #FECACA;
}

.signal-chart__badge--cool {
  background: #EFF6FF;
  color: #1D4ED8;
  border: 1px solid #BFDBFE;
}

.signal-chart__badge--geo {
  background: #F8FAFC;
  color: #475569;
  border: 1px solid #CBD5E1;
}

/* ── Canvas Wrap ── */
.signal-chart__canvas-wrap {
  position: relative;
  padding: var(--space-lg);
  background: #FFFFFF;
  overflow-x: auto;
}

.signal-chart__canvas-wrap canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ── Map Wrap (for geographic chart) ── */
.signal-chart__map-wrap {
  position: relative;
  padding: var(--space-lg);
  background: #FFFFFF;
  min-height: 200px;
}

/* ── Chart Legend ── */
.signal-chart__legend {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg) var(--space-md);
  flex-wrap: wrap;
  border-top: 1px solid #F1F5F9;
  background: #FAFBFC;
}

.signal-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: #475569;
  letter-spacing: 0.04em;
}

.signal-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.signal-legend-line {
  width: 16px;
  height: 3px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* ── Download PNG Button (light theme) ── */
.signal-chart__actions {
  display: flex;
  justify-content: flex-end;
  padding: 0 var(--space-lg) var(--space-md);
}

.signal-chart__download {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 6px;
  background: #F1F5F9;
  color: #475569;
  border: 1px solid #CBD5E1;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  font-weight: 600;
}

.signal-chart__download:hover {
  background: #334155;
  color: #FFFFFF;
  border-color: #334155;
}

/* ── Tooltip (dark background for visibility on light charts) ── */
.signal-tooltip {
  position: fixed;
  z-index: 10000;
  pointer-events: none;
  background: #1E293B;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 10px 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  max-width: 280px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1.6;
  color: #F1F5F9;
}

.signal-tooltip--visible {
  opacity: 1;
  transform: translateY(0);
}

.signal-tooltip__title {
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 4px;
  font-size: 0.72rem;
}

.signal-tooltip__row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  color: #94A3B8;
}

.signal-tooltip__value {
  color: #FFFFFF;
  font-weight: 600;
}

.signal-tooltip__change--up {
  color: #4ADE80;
}

.signal-tooltip__change--down {
  color: #FB7185;
}

.signal-tooltip__change--neutral {
  color: #94A3B8;
}

/* ── Sector Distribution Bars ── */
.signal-chart__sectors {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  border-top: 1px solid #F1F5F9;
}

.signal-sectors__title {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #475569;
  margin-bottom: var(--space-sm);
}

.signal-sectors__list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.signal-sector-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.signal-sector-row__name {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: #334155;
  min-width: 90px;
  text-align: right;
  font-weight: 500;
}

.signal-sector-row__bar-wrap {
  flex: 1;
  height: 10px;
  background: #F1F5F9;
  border-radius: 5px;
  overflow: hidden;
}

.signal-sector-row__bar {
  height: 100%;
  border-radius: 5px;
  transition: width 0.8s ease;
}

.signal-sector-row__count {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: #64748B;
  min-width: 24px;
  text-align: right;
  font-weight: 600;
}

/* ── Geo Container ── */
.signal-geo__container {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #F1F5F9;
}

/* ── Summary Stats Panel ── */
.signal-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.signal-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color 0.2s ease;
}

.signal-stat:hover {
  border-color: var(--deep-signal-border);
}

.signal-stat__value {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.signal-stat__value--accent {
  color: var(--accent);
}

.signal-stat__label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Executive Summary Box ── */
.signal-exec-summary {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--deep-signal-bg) 100%);
  border: 1px solid var(--deep-signal-border);
  border-left: 4px solid var(--deep-signal-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.signal-exec-summary__label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--deep-signal-color);
  margin-bottom: var(--space-sm);
}

.signal-exec-summary__text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── Focus Areas Callout ── */
.signal-focus-areas {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.signal-focus-areas__label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.signal-focus-areas__list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.signal-focus-areas__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  padding-left: var(--space-sm);
  border-left: 2px solid var(--border);
  transition: border-color 0.2s ease;
}

.signal-focus-areas__item:hover {
  border-left-color: var(--accent);
}

/* ── Threat Distribution Mini-Bar ── */
.signal-threat-dist {
  display: flex;
  height: 6px;
  border-radius: 3px;
  overflow: hidden;
  margin: var(--space-sm) 0;
}

.signal-threat-dist__seg {
  transition: width 0.6s ease;
}

.signal-threat-dist__seg--critical { background: var(--threat-critical); }
.signal-threat-dist__seg--high     { background: var(--threat-high); }
.signal-threat-dist__seg--medium   { background: var(--threat-medium); }
.signal-threat-dist__seg--low      { background: var(--threat-low); }

/* ── Quadrant Labels (overlay) ── */
.signal-quadrant-labels {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.signal-quadrant-label {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.5;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .signal-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .signal-stats {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }

  .signal-stat {
    padding: var(--space-sm);
  }

  .signal-stat__value {
    font-size: 1.1rem;
  }

  .signal-chart__canvas-wrap {
    padding: var(--space-md);
  }

  .signal-chart__map-wrap {
    padding: var(--space-sm);
  }

  .signal-chart__legend {
    padding: var(--space-sm) var(--space-md);
  }

  .signal-chart__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  .signal-sector-row__name {
    min-width: 70px;
    font-size: 0.55rem;
  }
}

@media (max-width: 480px) {
  .signal-charts__stack {
    gap: var(--space-md);
  }

  .signal-chart__header {
    padding: var(--space-sm) var(--space-md);
  }

  .signal-chart__label {
    font-size: 0.58rem;
  }

  .signal-chart__badge {
    font-size: 0.5rem;
  }

  .signal-chart__sectors {
    padding: var(--space-sm) var(--space-md) var(--space-md);
  }
}

/* ── Print ── */
@media print {
  .signal-charts {
    break-inside: avoid;
  }

  .signal-chart {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .signal-chart--warm {
    border-left: 4px solid #E63946;
  }

  .signal-chart--cool {
    border-left: 4px solid #264653;
  }

  .signal-chart--geo {
    border-left: 4px solid #475569;
  }

  .signal-tooltip {
    display: none;
  }

  .signal-chart__download {
    display: none;
  }
}