/* ==========================================================================
   Drill-Down Component Styles — Story 4.6
   Row Drill-Down with Breadcrumbs & Hierarchy Switching
   ========================================================================== */

/* ── Container ──────────────────────────────────────────────────────── */

.drill-down-container {
  padding: 1rem 0;
}

/* ── Breadcrumbs ────────────────────────────────────────────────────── */

.drill-breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.125rem;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.drill-breadcrumb-item {
  color: var(--text-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}

.drill-breadcrumb-item--clickable {
  cursor: pointer;
}

.drill-breadcrumb-item--clickable:hover {
  background: var(--accent-primary-alpha);
  color: var(--accent-primary);
}

.drill-breadcrumb-separator {
  color: var(--text-muted);
  font-weight: 300;
  user-select: none;
}

/* ── Level Header ───────────────────────────────────────────────────── */

.drill-level-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  margin-bottom: 0.5rem;
}

.drill-level-field {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.drill-level-indicator {
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
}

/* ── Sub-view Tabs ──────────────────────────────────────────────────── */

.drill-sub-view-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1rem;
}

.drill-sub-tab {
  padding: 0.625rem 1.25rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  font-family: var(--font-body, 'Roboto', sans-serif);
}

.drill-sub-tab:hover {
  color: var(--text-primary);
}

.drill-sub-tab--active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

/* ── Hierarchy Switcher ─────────────────────────────────────────────── */

.drill-hierarchy-switcher {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.drill-hierarchy-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.drill-hierarchy-dropdown {
  flex: 0 1 auto;
}

/* ── Back Button ────────────────────────────────────────────────────── */

.drill-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  cursor: pointer;
  margin-bottom: 1rem;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  font-family: var(--font-body, 'Roboto', sans-serif);
}

.drill-back-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

/* ── Drill Results Info ─────────────────────────────────────────────── */

.drill-results-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  margin-bottom: 0.5rem;
}

.drill-row-count {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.drill-active-tab-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Leaf Node Notice ───────────────────────────────────────────────── */

.drill-leaf-notice {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-secondary);
  border-radius: 6px;
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.drill-leaf-icon {
  font-size: 1rem;
}

/* ── Empty State ────────────────────────────────────────────────────── */

.drill-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  text-align: center;
  color: var(--text-secondary);
}

.drill-empty-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

/* ── Avatar Card Gallery ────────────────────────────────────────────── */

.drill-card-gallery {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.5rem 0.25rem;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--border-subtle) transparent;
}

.drill-card-gallery::-webkit-scrollbar {
  height: 4px;
}

.drill-card-gallery::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: 2px;
}

.drill-avatar-card {
  flex: 0 0 auto;
  width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  padding: 0.75rem 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md, 8px);
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  user-select: none;
}

.drill-avatar-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.drill-avatar-card--active {
  border-color: var(--accent-alpha-60);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 15%, transparent);
}

.drill-avatar-card--active:hover {
  border-color: var(--accent);
}

/* ── Avatar Icon ────────────────────────────────────────────────────── */

.drill-game-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-neutral-800);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-heading, 'Unbounded', system-ui);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: background 0.15s, color 0.15s;
}

.drill-game-icon--active {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
}

.drill-game-icon--img {
  font-size: 0;
  background: none;
}

.drill-game-icon--img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* ── Avatar Name & Value ────────────────────────────────────────────── */

.drill-game-name {
  font-family: var(--font-body, 'Roboto', system-ui);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.3;
}

.drill-game-value {
  font-family: var(--font-body, 'Roboto', system-ui);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.drill-game-value--active {
  color: var(--accent-alpha-70);
}

/* ── Drill Results Wrapper ──────────────────────────────────────────── */

.drill-results-wrapper {
  margin-top: 0.5rem;
}