/* ── Dashboard header ─────────────────────────────────────────────────────── */
.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

/* ── KPI grid — 4 cols desktop | 2 tablet | 1 mobile ─────────────────────── */
.kpi-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .kpi-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .kpi-grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ── Period selector (KPI) ────────────────────────────────────────────────── */
.period-selector { flex-shrink: 0; }

.period-select {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-default);
  border-radius: 10px;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  padding: 0.5rem 2.25rem 0.5rem 0.875rem;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.period-select:focus {
  border-color: var(--color-border-active);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.10);
}

.period-select option {
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
}

/* ── Alerts block ─────────────────────────────────────────────────────────── */
.alerts-block {
  margin-top: var(--space-6);
}

.alerts-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.alert-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.75rem var(--space-4);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.4;
  transition: opacity 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
  color: inherit;
}

.alert-ok {
  background: var(--color-success-dim);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.20);
}

.alert-warn {
  background: var(--color-warning-dim);
  color: var(--color-text-primary);
  border: 1px solid rgba(245, 158, 11, 0.20);
  cursor: pointer;
}

.alert-warn:hover {
  opacity: 0.85;
  border-color: rgba(245, 158, 11, 0.40);
}

.alert-warn i {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-text-muted);
}

/* ── Skeleton loading ─────────────────────────────────────────────────────── */
.skeleton-block {
  background: var(--color-bg-elevated);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}

.skeleton-block::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
  animation: dash-shimmer 1.4s ease-in-out infinite;
}

@keyframes dash-shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.skeleton-card {
  pointer-events: none;
}

/* ── Charts grid 2×2 ──────────────────────────────────────────────────────── */
.dashboard-charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.chart-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border-default);
  border-radius: 16px;
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}

/* ── Chart card header (title + period buttons) ───────────────────────────── */
.chart-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.chart-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
}

/* Within activity-feed-card, title needs bottom spacing */
.activity-feed-card .chart-title {
  display: block;
  margin-bottom: var(--space-4);
}

/* ── Chart period buttons ─────────────────────────────────────────────────── */
.chart-period-btns {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.chart-period-btn {
  background: transparent;
  border: 1px solid var(--color-border-default);
  border-radius: 6px;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 0.25rem 0.625rem;
  line-height: 1.4;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.chart-period-btn:hover {
  color: var(--color-text-secondary);
  border-color: var(--color-border-hover);
}

.chart-period-btn.active {
  background: rgba(0, 229, 255, 0.10);
  border-color: var(--color-border-active);
  color: var(--color-neon);
}

/* ── Static period label ──────────────────────────────────────────────────── */
.chart-period-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* ── Canvas wrapper ───────────────────────────────────────────────────────── */
.chart-canvas-wrap {
  height: 280px;
}

@media (max-width: 768px) {
  .chart-canvas-wrap {
    height: 200px;
  }
}

/* ── Activity feed card ───────────────────────────────────────────────────── */
.activity-feed-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border-default);
  border-radius: 16px;
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  margin-top: var(--space-6);
}

.activity-feed-list {
  max-height: 400px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-default) transparent;
}

.activity-feed-list::-webkit-scrollbar       { width: 4px; }
.activity-feed-list::-webkit-scrollbar-track  { background: transparent; }
.activity-feed-list::-webkit-scrollbar-thumb  { background: var(--color-border-default); border-radius: 4px; }

/* ── Feed items ───────────────────────────────────────────────────────────── */
.feed-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: background 0.2s ease;
}

.feed-item:hover {
  background: rgba(0, 229, 255, 0.04);
}

.feed-item-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feed-item-icon i {
  width: 15px;
  height: 15px;
}

.feed-item-body { flex: 1; min-width: 0; }

.feed-item-text {
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.feed-item-time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.feed-empty {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-4) 0;
  text-align: center;
}

/* ── Feed skeleton lines ──────────────────────────────────────────────────── */
.feed-skeleton-line {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2);
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .dashboard-charts-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .dash-header {
    flex-wrap: wrap;
  }

  .period-selector {
    width: 100%;
  }

  .period-select {
    width: 100%;
  }

  .chart-card-header {
    flex-wrap: wrap;
    gap: var(--space-2);
  }
}