/* Tile Improvements Spectator UI */

.improvements-dashboard {
  padding: 16px;
  max-width: 1200px;
  margin: 0 auto;
}

.improvements-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.improvements-header h2 {
  margin: 0;
  font-size: 1.4rem;
}

.improvements-stats {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-secondary, #f3f4f6);
  border-radius: 8px;
  padding: 8px 16px;
  text-align: center;
  min-width: 80px;
}

.dark .stat-card,
[data-theme="dark"] .stat-card {
  background: #1f2937;
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary, #111);
}

.dark .stat-value,
[data-theme="dark"] .stat-value {
  color: #f9fafb;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary, #6b7280);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Filters */
.improvements-filters {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.filter-chip {
  background: var(--bg-secondary, #f3f4f6);
  border: 2px solid transparent;
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.dark .filter-chip,
[data-theme="dark"] .filter-chip {
  background: #1f2937;
  color: #f9fafb;
}

.filter-chip:hover {
  opacity: 0.8;
}

.filter-chip.active {
  background: var(--accent, #3b82f6);
  color: white;
  border-color: var(--accent, #3b82f6);
}

/* Grid */
.improvements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.improvement-card {
  background: var(--bg-secondary, #fff);
  border-radius: 8px;
  padding: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s;
}

.dark .improvement-card,
[data-theme="dark"] .improvement-card {
  background: #1f2937;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.improvement-card:hover {
  transform: translateY(-2px);
}

.improvement-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.improvement-emoji {
  font-size: 1.5rem;
}

.improvement-type {
  font-weight: 600;
  text-transform: capitalize;
  flex: 1;
}

.improvement-level {
  font-size: 0.85rem;
}

.improvement-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.detail-label {
  color: var(--text-secondary, #6b7280);
}

.detail-value {
  font-weight: 500;
}

/* Definitions */
.improvements-definitions {
  margin-bottom: 24px;
}

.improvements-definitions h3 {
  margin-bottom: 12px;
}

.def-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.def-card {
  background: var(--bg-secondary, #fff);
  border-radius: 8px;
  padding: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.dark .def-card,
[data-theme="dark"] .def-card {
  background: #1f2937;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.def-header {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 4px;
}

.def-desc {
  font-size: 0.85rem;
  color: var(--text-secondary, #6b7280);
  margin-bottom: 8px;
}

.def-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  margin-bottom: 4px;
}

.def-cost {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent, #3b82f6);
}

/* History */
.improvements-history h3 {
  margin-bottom: 12px;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg-secondary, #f3f4f6);
  border-radius: 6px;
  font-size: 0.85rem;
}

.dark .history-item,
[data-theme="dark"] .history-item {
  background: #1f2937;
}

.history-item span:nth-child(2) {
  flex: 1;
}

.history-tick {
  color: var(--text-secondary, #6b7280);
  font-size: 0.75rem;
  font-family: monospace;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary, #6b7280);
  font-size: 0.95rem;
}

.empty-state ul {
  margin-top: 12px;
  line-height: 1.8;
}

/* Mobile */
@media (max-width: 768px) {
  .improvements-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .improvements-stats {
    width: 100%;
    justify-content: space-between;
  }

  .improvements-grid {
    grid-template-columns: 1fr;
  }

  .def-grid {
    grid-template-columns: 1fr;
  }
}