/* ═══════════════════════════════════════════════════════════════
   CALL ANALYTICS — Dashboard Panel Styles
   Visualizes 36,229 calls from MongoDB
   Pure CSS charts, dark theme, no external libraries
   ═══════════════════════════════════════════════════════════════ */

/* ── Layout ── */
.calls-wrap {
  padding: 20px 24px;
  max-width: 1500px;
  margin: 0 auto;
}
.calls-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}
.calls-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}
.calls-subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-left: 8px;
}

/* ══════════════════════════════════════════════════════════════
   FILTERS
   ══════════════════════════════════════════════════════════════ */
.calls-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  align-items: center;
}
.calls-filter-group {
  display: flex;
  align-items: center;
  gap: 4px;
}
.calls-filter-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.calls-filter-select,
.calls-filter-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 6px 10px;
  font-family: var(--font);
  cursor: pointer;
  transition: border-color var(--transition);
}
.calls-filter-select:focus,
.calls-filter-input:focus {
  outline: none;
  border-color: var(--accent-blue);
}
.calls-filter-input {
  width: 120px;
}
.calls-search-input {
  flex: 1;
  min-width: 180px;
  max-width: 320px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.8rem;
  padding: 7px 12px;
  font-family: var(--font);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.calls-search-input::placeholder { color: var(--text-muted); }
.calls-search-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-blue-bg);
}

/* ══════════════════════════════════════════════════════════════
   STAT CARDS
   ══════════════════════════════════════════════════════════════ */
.calls-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
.calls-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 14px;
  text-align: center;
  transition: all var(--transition);
}
.calls-stat-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.calls-stat-icon {
  font-size: 1.4rem;
  margin-bottom: 4px;
}
.calls-stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.2;
}
.calls-stat-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}
.calls-stat-trend {
  font-size: 0.62rem;
  margin-top: 3px;
}
.calls-stat-trend.up { color: var(--accent-green); }
.calls-stat-trend.down { color: var(--accent-red); }

/* ══════════════════════════════════════════════════════════════
   GRID LAYOUT — two-column sections
   ══════════════════════════════════════════════════════════════ */
.calls-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}
.calls-grid-full {
  grid-column: 1 / -1;
}

/* ══════════════════════════════════════════════════════════════
   SECTION CARDS
   ══════════════════════════════════════════════════════════════ */
.calls-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: border-color var(--transition);
}
.calls-section:hover {
  border-color: var(--border-light);
}
.calls-section-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ══════════════════════════════════════════════════════════════
   BAR CHART — Pure CSS
   ══════════════════════════════════════════════════════════════ */
.calls-chart {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 140px;
  padding: 0 2px;
}
.calls-chart-bar {
  flex: 1;
  min-width: 0;
  border-radius: 3px 3px 0 0;
  transition: all 0.3s ease;
  position: relative;
  cursor: pointer;
}
.calls-chart-bar:hover {
  filter: brightness(1.3);
}
.calls-chart-bar:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  font-size: 0.62rem;
  white-space: nowrap;
  color: var(--text-primary);
  z-index: 10;
  pointer-events: none;
}
.calls-chart-labels {
  display: flex;
  gap: 3px;
  padding: 4px 2px 0;
}
.calls-chart-label {
  flex: 1;
  text-align: center;
  font-size: 0.55rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.calls-chart-range-toggle {
  display: flex;
  gap: 4px;
  margin-bottom: 10px;
}
.calls-range-btn {
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
}
.calls-range-btn:hover { color: var(--text-primary); border-color: var(--border-light); }
.calls-range-btn.active {
  color: var(--accent-blue);
  background: var(--accent-blue-bg);
  border-color: var(--accent-blue);
}

/* ══════════════════════════════════════════════════════════════
   CALL TYPE BREAKDOWN — horizontal bars
   ══════════════════════════════════════════════════════════════ */
.calls-breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.calls-breakdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
}
.calls-breakdown-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  width: 100px;
  flex-shrink: 0;
  text-align: right;
}
.calls-breakdown-bar-track {
  flex: 1;
  height: 18px;
  background: var(--bg-tertiary);
  border-radius: 9px;
  overflow: hidden;
  position: relative;
}
.calls-breakdown-bar-fill {
  height: 100%;
  border-radius: 9px;
  transition: width 0.5s ease;
  min-width: 2px;
}
.calls-breakdown-value {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-primary);
  width: 50px;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════════
   CALL OUTCOMES — donut-like segments with pure CSS
   ══════════════════════════════════════════════════════════════ */
.calls-outcomes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px;
}
.calls-outcome-card {
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
  transition: all var(--transition);
}
.calls-outcome-card:hover {
  background: var(--bg-hover);
}
.calls-outcome-icon {
  font-size: 1.3rem;
  margin-bottom: 3px;
}
.calls-outcome-value {
  font-size: 1.1rem;
  font-weight: 700;
}
.calls-outcome-label {
  font-size: 0.62rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.calls-outcome-pct {
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ══════════════════════════════════════════════════════════════
   PEAK HOURS HEATMAP — CSS grid
   ══════════════════════════════════════════════════════════════ */
.calls-heatmap {
  display: grid;
  grid-template-columns: 50px repeat(24, 1fr);
  gap: 2px;
  font-size: 0.6rem;
}
.calls-heatmap-header {
  text-align: center;
  color: var(--text-muted);
  padding: 2px 0;
  font-weight: 500;
}
.calls-heatmap-row-label {
  text-align: right;
  padding-right: 6px;
  color: var(--text-muted);
  font-size: 0.62rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.calls-heatmap-cell {
  aspect-ratio: 1;
  border-radius: 3px;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  min-height: 18px;
}
.calls-heatmap-cell:hover {
  outline: 2px solid var(--accent-blue);
  z-index: 2;
}
.calls-heatmap-cell:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  font-size: 0.6rem;
  white-space: nowrap;
  color: var(--text-primary);
  z-index: 10;
  pointer-events: none;
}
.calls-heat-0 { background: var(--bg-tertiary); }
.calls-heat-1 { background: rgba(88,166,255,0.15); }
.calls-heat-2 { background: rgba(88,166,255,0.30); }
.calls-heat-3 { background: rgba(88,166,255,0.50); }
.calls-heat-4 { background: rgba(88,166,255,0.70); }
.calls-heat-5 { background: rgba(88,166,255,0.90); }

.calls-heatmap-legend {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  font-size: 0.6rem;
  color: var(--text-muted);
  justify-content: flex-end;
}
.calls-heatmap-legend-cell {
  width: 14px;
  height: 14px;
  border-radius: 2px;
}

/* ══════════════════════════════════════════════════════════════
   AGENT PERFORMANCE TABLE
   ══════════════════════════════════════════════════════════════ */
.calls-agent-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
}
.calls-agent-table th {
  text-align: left;
  color: var(--text-muted);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}
.calls-agent-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.calls-agent-table tr:hover td {
  background: var(--bg-hover);
}
.calls-agent-table tr:last-child td {
  border-bottom: none;
}
.calls-agent-name {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.calls-agent-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}
.calls-agent-bar {
  height: 6px;
  border-radius: 3px;
  background: var(--bg-tertiary);
  overflow: hidden;
  min-width: 80px;
}
.calls-agent-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease;
}

/* ══════════════════════════════════════════════════════════════
   RECENT CALLS TABLE
   ══════════════════════════════════════════════════════════════ */
.calls-table-wrap {
  max-height: 420px;
  overflow-y: auto;
}
.calls-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
}
.calls-table th {
  text-align: left;
  color: var(--text-muted);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  position: sticky;
  top: 0;
  background: var(--bg-card);
  z-index: 1;
}
.calls-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}
.calls-table tr:hover td {
  background: var(--bg-hover);
}
.calls-table tr:last-child td {
  border-bottom: none;
}

/* Type badges */
.calls-type-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.62rem;
  font-weight: 600;
  white-space: nowrap;
}
.calls-type-badge.inbound {
  background: var(--accent-green-bg);
  color: var(--accent-green);
}
.calls-type-badge.outbound {
  background: var(--accent-blue-bg);
  color: var(--accent-blue);
}

/* Outcome badges */
.calls-outcome-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.62rem;
  font-weight: 600;
  white-space: nowrap;
}
.calls-outcome-badge.connected { background: var(--accent-green-bg); color: var(--accent-green); }
.calls-outcome-badge.voicemail { background: var(--accent-purple-bg); color: var(--accent-purple); }
.calls-outcome-badge.noanswer { background: var(--accent-orange-bg); color: var(--accent-orange); }
.calls-outcome-badge.busy { background: var(--accent-red-bg); color: var(--accent-red); }
.calls-outcome-badge.callback { background: var(--accent-yellow-bg); color: var(--accent-yellow); }

/* ══════════════════════════════════════════════════════════════
   DEPARTMENT BREAKDOWN — stacked mini bars
   ══════════════════════════════════════════════════════════════ */
.calls-dept-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.calls-dept-item {
  display: flex;
  align-items: center;
  gap: 10px;
}
.calls-dept-icon { font-size: 1rem; flex-shrink: 0; }
.calls-dept-name {
  font-size: 0.75rem;
  color: var(--text-secondary);
  width: 90px;
  flex-shrink: 0;
}
.calls-dept-bar-track {
  flex: 1;
  height: 14px;
  background: var(--bg-tertiary);
  border-radius: 7px;
  overflow: hidden;
  display: flex;
}
.calls-dept-bar-in {
  height: 100%;
  transition: width 0.5s ease;
}
.calls-dept-bar-out {
  height: 100%;
  transition: width 0.5s ease;
}
.calls-dept-count {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-primary);
  width: 50px;
  text-align: right;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════════
   EMPTY & LOADING
   ══════════════════════════════════════════════════════════════ */
.calls-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 48px;
  color: var(--text-secondary);
}
.calls-empty {
  text-align: center;
  padding: 40px 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .calls-grid { grid-template-columns: 1fr; }
  .calls-stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .calls-wrap { padding: 12px; }
  .calls-stats { grid-template-columns: repeat(2, 1fr); }
  .calls-filters { flex-direction: column; }
  .calls-search-input { max-width: 100%; }
  .calls-heatmap { font-size: 0.5rem; }
}