/* ── Collection page styles ─────────────────────────────── */

.page-header {
  padding: var(--space-4) 0 var(--space-3);
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--space-1);
}

.page-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* Stats bar */
.stats-bar {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat-label {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Progress bar */
.collection-progress {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  border: none;
  background: var(--color-surface-2);
  margin-bottom: var(--space-3);
  display: block;
}

.collection-progress::-webkit-progress-bar {
  background: var(--color-surface-2);
  border-radius: 2px;
}

.collection-progress::-webkit-progress-value {
  background: var(--color-accent);
  border-radius: 2px;
  transition: width 0.4s ease;
}

.collection-progress::-moz-progress-bar {
  background: var(--color-accent);
  border-radius: 2px;
}

/* Tab bar */
.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-3);
}

.tab-btn {
  padding: 0.6rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.tab-btn:hover { color: var(--color-text); }

.tab-btn.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Search */
.search-row {
  margin-bottom: var(--space-2);
}

.search-input {
  width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-text);
  padding: 0.6rem 1rem;
  font-size: 0.9375rem;
  transition: border-color 0.15s;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-input::placeholder { color: var(--color-text-muted); }

/* Filter chips */
.filter-chips {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}

.chip {
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.chip:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.chip.active {
  background: rgba(var(--color-accent-rgb), 0.15);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Loading */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-12) 0;
  color: var(--color-text-muted);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.error-message {
  color: #ef5350;
  padding: var(--space-3);
  background: rgba(239, 83, 80, 0.1);
  border-radius: 8px;
  margin: var(--space-3) 0;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--space-12) 0;
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-2);
}

/* Units grid */
.units-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-2);
}

.faction-group { }

.faction-heading {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.unit-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
}

/* Unit card */
.unit-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.unit-card.is-owned {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(var(--color-accent-rgb), 0.15);
}

.unit-card.is-wishlisted {
  border-color: var(--color-primary);
}

.unit-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-2);
}

.unit-card-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

.unit-card-meta {
  display: flex;
  gap: var(--space-1);
  flex-shrink: 0;
  align-items: center;
}

.unit-card-faction {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.unit-card-pilots {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-1);
}

.pilots-count {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
}

.pilots-range {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.pilots-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pilot-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  padding: 2px 0;
  border-bottom: 1px solid var(--color-border);
}

.pilot-row:last-child { border-bottom: none; }

.pilot-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  margin-right: var(--space-2);
  color: var(--color-text-muted);
}

.pilot-cost {
  font-size: 0.75rem;
  color: var(--color-accent);
  font-weight: 600;
  flex-shrink: 0;
}

.pilot-more {
  color: var(--color-text-muted);
  font-style: italic;
  font-size: 0.75rem;
  justify-content: flex-end;
  border-bottom: none;
}

/* Card action buttons */
.unit-card-actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  margin-top: auto;
  flex-wrap: wrap;
}

.toggle-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.toggle-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.toggle-btn.toggle-owned.active {
  background: rgba(var(--color-accent-rgb), 0.15);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.toggle-btn.toggle-wishlist.active {
  background: rgba(var(--color-primary-rgb), 0.15);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.toggle-icon { font-size: 0.9rem; line-height: 1; }

/* Quantity stepper */
.quantity-stepper {
  display: flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 2px 8px;
  background: var(--color-surface-2);
}

.quantity-stepper.hidden { display: none; }

.qty-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 1px 4px;
  border-radius: 4px;
  transition: color 0.15s;
}

.qty-btn:hover { color: var(--color-accent); }

.qty-value {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text);
  min-width: 1.5ch;
  text-align: center;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-size {
  background: var(--color-surface-2);
  color: var(--color-text-muted);
}

.badge-edited {
  background: rgba(var(--color-primary-rgb), 0.2);
  color: var(--color-primary);
}

.badge-info {
  background: rgba(var(--color-accent-rgb), 0.12);
  color: var(--color-accent);
  text-transform: none;
  font-size: 0.75rem;
  font-weight: 400;
  padding: 2px 8px;
  border-radius: 8px;
}

/* Upgrades grid */
.upgrades-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-2);
}

.upgrade-type-heading {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.upgrade-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-2);
}

.upgrade-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-2) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: border-color 0.15s;
}

.upgrade-card.is-owned  { border-color: var(--color-accent); }
.upgrade-card.is-wishlisted { border-color: var(--color-primary); }

.upgrade-card-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

.upgrade-card-meta {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.upgrade-cost {
  font-size: 0.75rem;
  color: var(--color-accent);
  font-weight: 700;
}

.upgrade-faction {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.upgrade-card-actions {
  display: flex;
  gap: var(--space-1);
}

.upgrade-card-actions .toggle-btn {
  flex: 1;
  justify-content: center;
  padding: 4px 6px;
  font-size: 0.75rem;
}

/* Responsive */
@media (max-width: 600px) {
  .unit-cards {
    grid-template-columns: 1fr;
  }

  .upgrade-cards {
    grid-template-columns: 1fr 1fr;
  }

  .stats-bar {
    gap: var(--space-4);
  }

  .page-title {
    font-size: 1.4rem;
  }
}

@media (max-width: 380px) {
  .upgrade-cards {
    grid-template-columns: 1fr;
  }
}