/* ╔══════════════════════════════════════════════════╗
   ║  Health Dashboard — Components                   ║
   ╚══════════════════════════════════════════════════╝ */

/* ── KPI Card ── */
.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex; flex-direction: column; gap: var(--space-sm);
  transition: all var(--transition-base);
  position: relative; overflow: hidden;
  cursor: pointer;
}
.kpi-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--kpi-color, var(--brand-500)), transparent);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.kpi-card::after {
  content: '\f065'; /* fa-expand */
  font-family: 'Font Awesome 6 Free'; font-weight: 900;
  position: absolute; top: 10px; right: 10px;
  font-size: 0.6rem; color: var(--text-muted);
  opacity: 0; transition: opacity 0.2s;
}
.kpi-card:hover::after { opacity: 0.6; }
.kpi-card:hover {
  border-color: rgba(0,180,216,0.2);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}
.kpi-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--font-md);
  background: var(--kpi-bg, var(--info-bg));
  color: var(--kpi-color, var(--brand-400));
}
.kpi-label {
  font-size: var(--font-xs); color: var(--text-secondary);
  font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em;
}
.kpi-value {
  font-size: var(--font-2xl); font-weight: 800;
  color: var(--text-primary); line-height: 1;
}
.kpi-unit {
  font-size: var(--font-sm); font-weight: 400;
  color: var(--text-muted); margin-left: 4px;
}
.kpi-trend {
  font-size: var(--font-xs); font-weight: 600;
  display: flex; align-items: center; gap: 4px;
}
.kpi-trend.up   { color: var(--success); }
.kpi-trend.down { color: var(--danger); }
.kpi-trend.flat { color: var(--text-muted); }

/* ── Button ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: var(--font-sm); font-weight: 500;
  cursor: pointer; transition: all var(--transition-fast);
  font-family: var(--font-family);
}
.btn:hover { color: var(--brand-400); border-color: var(--brand-500); background: rgba(0,180,216,0.08); }
.btn.btn-sm { padding: 6px 10px; font-size: var(--font-xs); }
.btn.btn-primary {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
  color: #fff; border-color: transparent;
}
.btn.btn-primary:hover { box-shadow: 0 0 16px rgba(0,180,216,0.4); }

/* ── Badge ── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-xs); font-weight: 600;
  line-height: 1.4;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger);  }
.badge-info    { background: var(--info-bg);    color: var(--info);    }

/* ── Health Score Gauge ── */
.gauge-wrapper {
  position: relative; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: var(--space-sm);
}
.gauge-label {
  font-size: var(--font-sm); color: var(--text-secondary);
  font-weight: 600; text-transform: uppercase;
}

/* ── Alert / Anomaly card ── */
.alert-card {
  display: flex; align-items: flex-start; gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  background: var(--bg-card);
  transition: background var(--transition-fast);
}
.alert-card:hover { background: var(--bg-card-hover); }
.alert-card.danger  { border-left-color: var(--danger);  }
.alert-card.warning { border-left-color: var(--warning); }
.alert-card.info    { border-left-color: var(--info);    }
.alert-card.success { border-left-color: var(--success); }

.alert-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--font-base); flex-shrink: 0;
}
.alert-card.danger  .alert-icon { background: var(--danger-bg);  color: var(--danger);  }
.alert-card.warning .alert-icon { background: var(--warning-bg); color: var(--warning); }
.alert-card.info    .alert-icon { background: var(--info-bg);    color: var(--info);    }
.alert-card.success .alert-icon { background: var(--success-bg); color: var(--success); }

.alert-content { flex: 1; min-width: 0; }
.alert-title {
  font-size: var(--font-sm); font-weight: 600;
  color: var(--text-primary); margin-bottom: 2px;
}
.alert-desc {
  font-size: var(--font-xs); color: var(--text-secondary); line-height: 1.5;
}
.alert-meta {
  font-size: var(--font-xs); color: var(--text-muted); margin-top: 4px;
}

/* ── Insight Card ── */
.insight-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex; flex-direction: column; gap: var(--space-sm);
  transition: all var(--transition-base);
}
.insight-card:hover {
  border-color: rgba(0,180,216,0.2);
  box-shadow: var(--shadow-glow);
}
.insight-header {
  display: flex; align-items: center; gap: var(--space-sm);
}
.insight-icon {
  width: 32px; height: 32px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--font-sm);
}
.insight-card.success .insight-icon { background: var(--success-bg); color: var(--success); }
.insight-card.warning .insight-icon { background: var(--warning-bg); color: var(--warning); }
.insight-card.danger  .insight-icon { background: var(--danger-bg);  color: var(--danger);  }
.insight-card.info    .insight-icon { background: var(--info-bg);    color: var(--info);    }

.insight-title {
  font-size: var(--font-sm); font-weight: 600;
  color: var(--text-primary);
}
.insight-desc {
  font-size: var(--font-xs); color: var(--text-secondary); line-height: 1.6;
}
.insight-card.has-details { cursor: pointer; }
.insight-card.has-details:hover {
  transform: translateY(-2px);
  border-color: rgba(0,180,216,0.3);
  box-shadow: var(--shadow-glow), 0 4px 12px rgba(0,0,0,0.2);
}
.insight-hint {
  font-size: 0.65rem; color: var(--text-muted); margin-top: 4px;
  opacity: 0; transition: opacity 0.2s;
}
.insight-card.has-details:hover .insight-hint { opacity: 1; }

/* ── Insight Detail Modal ── */
.insight-modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  justify-content: center; align-items: center;
}
.insight-modal-overlay.active { display: flex; }
.insight-modal {
  background: var(--bg-card); border: 1px solid var(--border-card);
  border-radius: var(--radius-lg); width: 92%; max-width: 680px;
  max-height: 85vh; display: flex; flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.insight-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-lg); border-bottom: 1px solid var(--border-card);
}
.insight-modal-header h3 {
  margin: 0; font-size: var(--font-base); color: var(--text-primary);
  display: flex; align-items: center;
}
.insight-modal-close {
  background: none; border: none; color: var(--text-muted);
  font-size: var(--font-lg); cursor: pointer; width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); transition: all var(--transition-fast);
  flex-shrink: 0;
}
.insight-modal-close:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.insight-modal-body {
  padding: var(--space-lg); overflow-y: auto; flex: 1;
}

.insight-detail-section {
  margin-bottom: 1.25rem;
}
.insight-detail-section:last-child { margin-bottom: 0; }
.insight-detail-label {
  font-size: 0.75rem; font-weight: 700; color: var(--primary);
  text-transform: uppercase; letter-spacing: 0.5px;
  margin-bottom: 0.5rem; display: flex; align-items: center; gap: 6px;
}
.insight-detail-text {
  font-size: var(--font-sm); color: var(--text-secondary); line-height: 1.7;
  background: rgba(0,180,216,0.04); border-left: 3px solid var(--primary);
  padding: 0.75rem 1rem; border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.insight-metrics-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.5rem;
}
.insight-metric-item {
  background: rgba(255,255,255,0.03); border: 1px solid var(--border-card);
  border-radius: var(--radius-md); padding: 0.6rem 0.75rem; text-align: center;
}
.insight-metric-value {
  font-size: 1.1rem; font-weight: 700; color: var(--text-primary);
}
.insight-metric-unit {
  font-size: 0.65rem; color: var(--text-muted); margin-left: 2px; font-weight: 400;
}
.insight-metric-label {
  font-size: 0.65rem; color: var(--text-secondary); margin-top: 2px;
}

.insight-ref-table {
  width: 100%; border-collapse: collapse; font-size: var(--font-xs);
}
.insight-ref-table td {
  padding: 0.4rem 0.75rem; border-bottom: 1px solid rgba(255,255,255,0.04);
}
.insight-ref-table td:first-child {
  color: var(--text-secondary); width: 50%;
}
.insight-ref-table td:last-child {
  color: var(--text-primary); font-weight: 600; font-family: 'JetBrains Mono', monospace;
}
.insight-ref-table tr:last-child td { border-bottom: none; }

.insight-rec-list {
  list-style: none; padding: 0; margin: 0;
}
.insight-rec-list li {
  font-size: var(--font-xs); color: var(--text-secondary); line-height: 1.6;
  padding: 0.4rem 0 0.4rem 1.5rem; position: relative;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.insight-rec-list li:last-child { border-bottom: none; }
.insight-rec-list li::before {
  content: '✓'; position: absolute; left: 0; color: var(--success);
  font-weight: 700; font-size: 0.7rem;
}

/* ── Insight Episode Detail Table ── */
.insight-episode-scroll {
  max-height: 320px; overflow-y: auto;
  border: 1px solid var(--border-card); border-radius: var(--radius-md);
}
.insight-episode-table {
  width: 100%; border-collapse: collapse; font-size: 0.72rem;
}
.insight-episode-table thead {
  position: sticky; top: 0; z-index: 1;
  background: rgba(15,23,42,0.95);
}
.insight-episode-table th {
  padding: 0.45rem 0.6rem; text-align: left;
  color: var(--primary); font-weight: 700; font-size: 0.65rem;
  text-transform: uppercase; letter-spacing: 0.5px;
  border-bottom: 2px solid var(--primary);
  white-space: nowrap;
}
.insight-episode-table td {
  padding: 0.35rem 0.6rem; color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  white-space: nowrap;
}
.insight-episode-table tbody tr:hover {
  background: rgba(0,180,216,0.06);
}
.insight-episode-table td strong {
  color: var(--text-primary);
}
.badge-sm {
  font-size: 0.6rem !important; padding: 1px 6px !important;
}

/* ── Anomaly Stat Mini-card ── */
.anomaly-stat {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
}
.anomaly-stat-value {
  font-size: var(--font-xl); font-weight: 800;
  color: var(--text-primary);
}
.anomaly-stat-label {
  font-size: var(--font-xs); color: var(--text-secondary);
  margin-top: 4px;
}
.anomaly-stat.danger  .anomaly-stat-value { color: var(--danger);  }
.anomaly-stat.warning .anomaly-stat-value { color: var(--warning); }
.anomaly-stat.info    .anomaly-stat-value { color: var(--info);    }
.anomaly-stat.clickable { cursor: pointer; transition: all var(--transition-fast); }
.anomaly-stat.clickable:hover { border-color: rgba(0,180,216,0.4); transform: translateY(-2px); box-shadow: var(--shadow-glow); }

/* ── Anomaly Daily List ── */
.anomaly-daily-list { max-height: 600px; overflow-y: auto; }
.anomaly-day-row {
  display: flex; align-items: center; gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-card);
  cursor: pointer; transition: background var(--transition-fast);
  border-radius: var(--radius-sm);
}
.anomaly-day-row:hover { background: var(--bg-card-hover); }
.anomaly-day-date {
  font-size: var(--font-sm); font-weight: 600; color: var(--text-primary);
  min-width: 90px;
}
.anomaly-day-count {
  font-size: var(--font-sm); font-weight: 800; min-width: 40px; text-align: center;
  padding: 2px 10px; border-radius: var(--radius-sm);
}
.anomaly-day-count.danger  { background: var(--danger-bg);  color: var(--danger);  }
.anomaly-day-count.warning { background: var(--warning-bg); color: var(--warning); }
.anomaly-day-types { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }
.anomaly-day-tag {
  font-size: 0.65rem; padding: 2px 8px; border-radius: 10px;
  background: rgba(255,255,255,0.06); color: var(--text-secondary);
  display: flex; align-items: center; gap: 4px;
}
.anomaly-day-tag i { font-size: 0.6rem; }
.anomaly-day-tag.bradycardia  { color: var(--danger);  background: var(--danger-bg);  }
.anomaly-day-tag.tachycardia  { color: var(--warning); background: var(--warning-bg); }
.anomaly-day-tag.hypoxia      { color: #ef4444;        background: rgba(239,68,68,0.12); }
.anomaly-day-tag.high_stress  { color: var(--warning); background: var(--warning-bg); }
.anomaly-day-tag.sleep_short  { color: var(--info);    background: var(--info-bg);    }
.anomaly-day-tag.sleep_long   { color: var(--info);    background: var(--info-bg);    }
.anomaly-day-tag.low_deep_sleep { color: #a78bfa;      background: rgba(167,139,250,0.12); }
.anomaly-day-tag.low_rem_sleep { color: #a78bfa;      background: rgba(167,139,250,0.12); }
.anomaly-day-tag.sleep_fragmented { color: var(--warning); background: var(--warning-bg); }
.anomaly-day-arrow {
  color: var(--text-muted); font-size: var(--font-sm); margin-left: auto;
}
.anomaly-toolbar { display: flex; gap: var(--space-sm); }
.anomaly-filter-bar { display: flex; align-items: center; gap: var(--space-sm); padding: var(--space-sm) 0; }

/* ── Anomaly Detail Modal ── */
.anomaly-modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  justify-content: center; align-items: center;
}
.anomaly-modal-overlay.active { display: flex; }
.anomaly-modal {
  background: var(--bg-card); border: 1px solid var(--border-card);
  border-radius: var(--radius-lg); width: 90%; max-width: 800px;
  max-height: 85vh; display: flex; flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.anomaly-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-lg); border-bottom: 1px solid var(--border-card);
}
.anomaly-modal-header h3 {
  margin: 0; font-size: var(--font-base); color: var(--text-primary);
}
.anomaly-modal-close {
  background: none; border: none; color: var(--text-muted);
  font-size: var(--font-lg); cursor: pointer; width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); transition: all var(--transition-fast);
}
.anomaly-modal-close:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.anomaly-modal-body {
  padding: var(--space-lg); overflow-y: auto; flex: 1;
}

/* ── Modal: Hourly Timeline ── */
.modal-hour-group { margin-bottom: var(--space-md); }
.modal-hour-label {
  font-size: var(--font-sm); font-weight: 700; color: var(--primary);
  padding: 4px 0; border-bottom: 1px solid var(--border-card);
  margin-bottom: var(--space-xs); display: flex; align-items: center; gap: 8px;
}
.modal-hour-label .hour-count {
  font-size: 0.65rem; padding: 1px 8px; border-radius: 10px;
  background: rgba(0,180,216,0.15); color: var(--primary); font-weight: 600;
}
.modal-episode {
  display: flex; align-items: center; gap: var(--space-sm);
  padding: 6px var(--space-sm); border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.modal-episode:hover { background: rgba(255,255,255,0.04); }
.modal-episode-time {
  font-family: 'SF Mono', 'Consolas', monospace;
  font-size: 0.75rem; color: var(--text-secondary); min-width: 65px;
  font-weight: 500;
}
.modal-episode-icon {
  width: 24px; height: 24px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; flex-shrink: 0;
}
.modal-episode-icon.danger  { background: var(--danger-bg);  color: var(--danger);  }
.modal-episode-icon.warning { background: var(--warning-bg); color: var(--warning); }
.modal-episode-icon.info    { background: var(--info-bg);    color: var(--info);    }
.modal-episode-msg {
  font-size: var(--font-xs); color: var(--text-primary); flex: 1;
}
.modal-episode-val {
  font-size: var(--font-xs); font-weight: 700; min-width: 60px; text-align: right;
}
.modal-episode-val.danger  { color: var(--danger);  }
.modal-episode-val.warning { color: var(--warning); }
.modal-episode-val.info    { color: var(--info);    }

/* ── Modal: Summary bar ── */
.modal-summary {
  display: flex; gap: var(--space-md); flex-wrap: wrap;
  margin-bottom: var(--space-lg); padding: var(--space-md);
  background: rgba(255,255,255,0.03); border-radius: var(--radius-md);
}
.modal-summary-item {
  text-align: center; min-width: 80px;
}
.modal-summary-item .val {
  font-size: var(--font-lg); font-weight: 800;
}
.modal-summary-item .lbl {
  font-size: 0.65rem; color: var(--text-muted); margin-top: 2px;
}

/* ── KPI Detail Modal ── */
.kpi-modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  justify-content: center; align-items: center;
}
.kpi-modal-overlay.active { display: flex; }
.kpi-modal {
  background: var(--bg-card); border: 1px solid var(--border-card);
  border-radius: var(--radius-lg); width: 92%; max-width: 640px;
  max-height: 85vh; display: flex; flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  animation: fadeInUp 0.25s ease-out;
}
.kpi-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-lg); border-bottom: 1px solid var(--border-card);
}
.kpi-modal-header h3 {
  margin: 0; font-size: var(--font-base); color: var(--text-primary);
  display: flex; align-items: center; gap: 8px;
}
.kpi-modal-close {
  background: none; border: none; color: var(--text-muted);
  font-size: var(--font-lg); cursor: pointer; width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); transition: all var(--transition-fast);
  flex-shrink: 0;
}
.kpi-modal-close:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.kpi-modal-body {
  padding: var(--space-lg); overflow-y: auto; flex: 1;
}
.kpi-detail-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
.kpi-detail-item {
  background: rgba(255,255,255,0.03); border: 1px solid var(--border-card);
  border-radius: var(--radius-md); padding: 0.6rem 0.75rem; text-align: center;
}
.kpi-detail-val {
  font-size: 1.1rem; font-weight: 700; color: var(--text-primary);
}
.kpi-detail-unit {
  font-size: 0.65rem; color: var(--text-muted); margin-left: 2px; font-weight: 400;
}
.kpi-detail-lbl {
  font-size: 0.65rem; color: var(--text-secondary); margin-top: 2px;
}
.kpi-detail-section {
  margin-bottom: var(--space-lg);
}
.kpi-detail-section:last-child { margin-bottom: 0; }
.kpi-detail-title {
  font-size: 0.75rem; font-weight: 700; color: var(--primary);
  text-transform: uppercase; letter-spacing: 0.5px;
  margin-bottom: 0.5rem; display: flex; align-items: center; gap: 6px;
}
.kpi-detail-table {
  width: 100%; border-collapse: collapse; font-size: var(--font-xs);
}
.kpi-detail-table td {
  padding: 0.4rem 0.75rem; border-bottom: 1px solid rgba(255,255,255,0.04);
}
.kpi-detail-table td:first-child { color: var(--text-secondary); width: 50%; }
.kpi-detail-table td:last-child { color: var(--text-primary); font-weight: 600; font-family: 'JetBrains Mono', monospace; }
.kpi-detail-table tr:last-child td { border-bottom: none; }
.kpi-detail-chart { min-height: 180px; margin-top: var(--space-sm); }
.kpi-zone-bar {
  display: flex; border-radius: var(--radius-sm); overflow: hidden;
  height: 24px; margin-top: var(--space-xs);
}
.kpi-zone-bar > div {
  display: flex; align-items: center; justify-content: center;
  font-size: 0.55rem; font-weight: 700; color: #fff;
  min-width: 2px; transition: width 0.3s;
}
.kpi-zone-legend {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--space-xs);
  font-size: 0.6rem; color: var(--text-secondary);
}
.kpi-zone-legend span {
  display: flex; align-items: center; gap: 3px;
}
.kpi-zone-legend i {
  width: 8px; height: 8px; border-radius: 2px; display: inline-block;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--gray-600); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-500); }

/* ── Pulse animation for live indicator ── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.pulse { animation: pulse 2s ease-in-out infinite; }

/* ── Fade-in animation ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in {
  animation: fadeInUp 0.4s ease-out both;
}
.fade-in:nth-child(2)  { animation-delay: 50ms; }
.fade-in:nth-child(3)  { animation-delay: 100ms; }
.fade-in:nth-child(4)  { animation-delay: 150ms; }
.fade-in:nth-child(5)  { animation-delay: 200ms; }
.fade-in:nth-child(6)  { animation-delay: 250ms; }
.fade-in:nth-child(7)  { animation-delay: 300ms; }
.fade-in:nth-child(8)  { animation-delay: 350ms; }

/* ── Loading skeleton ── */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--gray-800) 25%, var(--gray-700) 50%, var(--gray-800) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
.skeleton-text { height: 14px; margin-bottom: 8px; }
.skeleton-title { height: 24px; width: 60%; margin-bottom: 12px; }

/* ══════════════════════════════════════════════════
   ██  Responsive — Components
   ══════════════════════════════════════════════════ */

/* ── Tablet portrait / large phone ── */
@media (max-width: 768px) {
  .kpi-card { padding: var(--space-md); }
  .kpi-value { font-size: var(--font-xl); }
  .kpi-icon { width: 32px; height: 32px; font-size: var(--font-sm); }

  .anomaly-day-row {
    flex-wrap: wrap; gap: var(--space-xs);
    padding: var(--space-sm);
  }
  .anomaly-day-date { min-width: auto; font-size: var(--font-xs); }
  .anomaly-day-types { flex: 1 1 100%; order: 3; }

  .anomaly-modal { width: 95%; max-width: none; max-height: 90vh; }
  .anomaly-modal-header { padding: var(--space-md); }
  .anomaly-modal-body { padding: var(--space-md); }

  .insight-modal { width: 95%; max-width: none; max-height: 90vh; }
  .insight-modal-header { padding: var(--space-md); }
  .insight-modal-body { padding: var(--space-md); }

  .kpi-modal { width: 95%; max-width: none; max-height: 90vh; }
  .kpi-modal-header { padding: var(--space-md); }
  .kpi-modal-body { padding: var(--space-md); }
  .kpi-detail-grid { grid-template-columns: repeat(2, 1fr); }

  .modal-summary { gap: var(--space-sm); padding: var(--space-sm); }
  .modal-summary-item { min-width: 60px; }
  .modal-summary-item .val { font-size: var(--font-base); }

  .modal-episode { gap: var(--space-xs); padding: 4px var(--space-xs); }
  .modal-episode-time { font-size: 0.65rem; min-width: 50px; }
  .modal-episode-icon { width: 20px; height: 20px; font-size: 0.55rem; }
  .modal-episode-val { min-width: 45px; font-size: 0.65rem; }

  .alert-card { padding: var(--space-sm) var(--space-md); }
  .insight-card { padding: var(--space-md); }
  .insight-metrics-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Phone ── */
@media (max-width: 480px) {
  .kpi-card { padding: var(--space-sm); gap: 4px; }
  .kpi-value { font-size: var(--font-lg); }
  .kpi-label { font-size: 0.6rem; }
  .kpi-icon { width: 28px; height: 28px; font-size: var(--font-xs); }

  .anomaly-stat { padding: var(--space-sm); }
  .anomaly-stat-value { font-size: var(--font-lg); }
  .anomaly-stat-label { font-size: 0.6rem; }

  .anomaly-daily-list { max-height: 400px; }
  .anomaly-day-tag { font-size: 0.55rem; padding: 1px 6px; }

  .modal-episode { flex-wrap: wrap; }
  .modal-episode-msg { flex: 1 1 100%; order: 4; font-size: 0.65rem; }

  .insight-metrics-grid { grid-template-columns: 1fr 1fr; gap: 4px; }
  .insight-metric-item { padding: 0.4rem 0.5rem; }
  .insight-metric-value { font-size: 0.9rem; }

  .anomaly-modal-header h3 { font-size: var(--font-sm); }
  .insight-modal-header h3 { font-size: var(--font-sm); }
}
.skeleton-chart { height: 240px; border-radius: var(--radius-md); }

/* ── Tooltip override for ApexCharts ── */
.apexcharts-tooltip {
  background: var(--gray-800) !important;
  border: 1px solid var(--border-card) !important;
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-md) !important;
  color: var(--text-primary) !important;
  font-family: var(--font-family) !important;
  font-size: var(--font-xs) !important;
}
.apexcharts-tooltip-title {
  background: var(--gray-700) !important;
  border-bottom: 1px solid var(--border-subtle) !important;
  color: var(--text-secondary) !important;
  font-weight: 600 !important;
}
.apexcharts-xaxistooltip, .apexcharts-yaxistooltip {
  background: var(--gray-800) !important;
  border: 1px solid var(--border-card) !important;
  color: var(--text-primary) !important;
}