/* panels.css — shared panel chrome + empty state + block wrapper. */

.panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  animation: tabFadeIn 0.25s ease;
}
@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}
.panel-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
/* Actions flush: left stays after title, center fills middle, right pushed to end */
.panel-actions-left { order: 1; }
.panel-actions-center { order: 2; margin-left: auto; margin-right: auto; }
.panel-actions-right { order: 3; margin-left: auto; }
.panel-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0;
}
.panel-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.panel-actions .btn {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-raised);
  color: var(--color-text);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}
.panel-actions .btn:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ── Shared block card chrome (used by timeline, trends, sections) ── */
/* Legacy pattern: white card with rounded corners, green header spanning
   full width, content below. No separate outline on content — the card
   wrapper provides the visual boundary. */
.block-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: 10px;
  margin-bottom: 1rem;
  overflow: hidden;
}
.block-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.2rem;
  background: var(--section-header-bg);
  border-bottom: 1px solid var(--gray-100);
}
.block-card-header h4 { margin: 0; font-size: 0.95rem; color: var(--text); }
.block-card-collapsible { cursor: pointer; user-select: none; }
.block-card-collapsible .section-chevron { transition: transform 0.2s; }
.block-card-collapsible.collapsed .section-chevron { transform: rotate(-90deg); }
.block-card-body.collapsed { display: none; }

/* Nested sections: same width as parent, no extra card chrome.
   Only outermost section gets .block-card border/radius. Inner sections
   are plain .section-group with just a header + body, flush to parent edges. */
.section-group:not(.block-card) {
  border-top: 1px solid var(--gray-100);
}
.section-group:not(.block-card):first-child {
  border-top: none;
}
.section-group:not(.block-card) > .block-card-header {
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
}
/* Strip padding from section card body so nested blocks are flush */
.section-group > .block-card-body {
  padding: 0;
}
/* Strip padding from .block wrappers inside sections (PanelRenderer adds these) */
.section-group .block {
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
}
.block-card-header select {
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--white);
  color: var(--text);
  font-family: inherit;
  cursor: pointer;
}
.block-card-body { padding: 1rem 1.2rem; }

.panel-empty {
  padding: 3rem 1.5rem;
  text-align: center;
  background: var(--color-bg-raised);
  border-radius: 10px;
  border: 1px dashed var(--color-border);
}
.panel-empty-icon {
  font-size: 48px;
  margin-bottom: 0.75rem;
  opacity: 0.6;
}
.panel-empty-message {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.block {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
}
/* Blocks containing .block-card: strip the outer .block chrome so the
   card header sits flush to the edge with zero gap. */
.block:has(> .block-card) {
  background: none;
  border: none;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
}
.block-title {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.error-state {
  padding: 2rem;
  text-align: center;
  color: var(--error);
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.empty-state {
  padding: 2rem;
  text-align: center;
  color: var(--color-text-muted);
}
.hidden { display: none !important; }
.text-muted { color: var(--color-text-muted); }