/* ============================================
   XOS SEARCH CSS — Sprint 6A Refactor
   App-First Compact Search Experience
   ============================================ */

/* === Full-Screen Search Overlay === */
.xos-search-full {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-modal, 1000);
  background: var(--md-surface, #fff);
  transform: translateY(100%);
  transition: transform var(--motion-duration-medium3, 0.3s) var(--motion-easing-standard, ease);
  display: flex;
  flex-direction: column;
}

.xos-search-full.active,
.xos-search-full.open {
  transform: translateY(0);
}

.xos-search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: var(--z-backdrop, 400);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-duration-normal) var(--motion-easing-standard);
}

.xos-search-overlay.active,
.xos-search-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* === Search Top Bar === */
.xos-search-top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: var(--space-3, 8px);
  padding: var(--space-3, 8px) var(--spacing-page, 16px);
  padding-top: calc(env(safe-area-inset-top, 0px) + var(--space-3, 8px));
  background: var(--md-surface, #fff);
  border-bottom: 1px solid var(--md-outline-variant, #c4c6d0);
}

.xos-search-back {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-full, 50%);
  color: var(--md-on-surface, #1a1c1e);
  flex-shrink: 0;
}

.xos-search-back:active {
  background: var(--md-surface-container-high, #e6e1e5);
}

.xos-search-input-wrap {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}

.xos-search-input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-12, 48px) 0 var(--space-4, 16px);
  border: none;
  border-radius: var(--radius-full, 24px);
  background: var(--md-surface-container-high, #e6e1e5);
  font-size: var(--typescale-body-large, 16px);
  font-family: inherit;
  color: var(--md-on-surface, #1a1c1e);
  outline: none;
}

.xos-search-input::placeholder {
  color: var(--md-on-surface-variant, #44474f);
}

.xos-search-clear {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-full, 50%);
  color: var(--md-on-surface-variant, #44474f);
}

.xos-search-clear.visible {
  display: flex;
}

/* === Suggestions Panel === */
.xos-search-suggestions {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-2, 4px) var(--spacing-page, 16px) var(--space-16, 64px);
}

.xos-search-section {
  margin-bottom: var(--space-2, 4px);
}

.xos-search-section-title {
  display: flex;
  align-items: center;
  gap: var(--space-2, 4px);
  font-size: var(--typescale-label-small, 11px);
  font-weight: var(--weight-semibold, 600);
  color: var(--md-on-surface-variant, #44474f);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: var(--space-3, 8px) 0;
  margin: 0;
}

/* === Suggestion Items (Compact Rows) === */
.xos-suggestion-list {
  display: flex;
  flex-direction: column;
}

.xos-suggestion-item {
  display: flex;
  align-items: center;
  gap: var(--space-3, 8px);
  width: 100%;
  padding: var(--space-2, 6px) var(--space-2, 6px);
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-sm, 8px);
  text-align: left;
  font-family: inherit;
  font-size: var(--typescale-body-medium, 14px);
  color: var(--md-on-surface, #1a1c1e);
  transition: background var(--motion-hover, 0.15s);
}

.xos-suggestion-item:active {
  background: var(--md-surface-container-high, #e6e1e5);
}

.suggestion-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  color: var(--md-on-surface-variant, #44474f);
}

.suggestion-icon svg {
  width: 18px;
  height: 18px;
}

.suggestion-text {
  flex: 1;
  font-size: var(--typescale-body-medium, 14px);
  line-height: var(--leading-normal, 1.4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* === Chip Groups (Recent + Popular) === */
.xos-search-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, 6px);
  padding: var(--space-1, 2px) 0 var(--space-2, 6px);
}

/* Compact chips for popular routes */
.xos-popular-scroll {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  gap: var(--space-2, 6px);
  padding: var(--space-1, 2px) 0 var(--space-2, 6px);
  scrollbar-width: none;
}

.xos-popular-scroll::-webkit-scrollbar {
  display: none;
}

/* Small chips for recent searches */
.xos-recent-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, 6px);
}

/* === Chip Variations === */
.xos-search-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1, 4px);
  border: 1px solid var(--md-outline, #c4c6d0);
  background: var(--md-surface, #fff);
  color: var(--md-on-surface, #1a1c1e);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--typescale-label-medium, 12px);
  white-space: nowrap;
  transition: background var(--motion-hover, 0.15s);
  border-radius: var(--radius-full, 24px);
  padding: var(--space-1, 4px) var(--space-3, 10px);
  min-height: 28px;
  flex-shrink: 0;
}

.xos-chip-compact {
  padding: var(--space-1, 3px) var(--space-3, 10px);
  min-height: 26px;
  font-size: var(--typescale-label-medium, 12px);
  border-radius: var(--radius-full, 24px);
}

.xos-chip-compact svg {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  color: var(--md-primary, #65558f);
}

.xos-chip-sm {
  padding: var(--space-1, 3px) var(--space-2, 8px);
  min-height: 24px;
  font-size: var(--typescale-label-small, 11px);
  border-radius: var(--radius-full, 24px);
}

.xos-search-chip:active {
  background: var(--md-surface-container-high, #e6e1e5);
}

/* === Results Panel === */
.xos-search-results {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: none;
  padding: 0 var(--spacing-page, 16px) var(--space-16, 64px);
}

.xos-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3, 8px) 0;
  position: sticky;
  top: 0;
  background: var(--md-surface, #fff);
  z-index: 5;
}

.xos-results-count {
  font-size: var(--typescale-label-medium, 12px);
  color: var(--md-on-surface-variant, #44474f);
  font-weight: var(--weight-medium, 500);
}

.xos-filter-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2, 4px);
  padding: var(--space-2, 6px) var(--space-3, 10px);
  border: 1px solid var(--md-outline, #c4c6d0);
  border-radius: var(--radius-full, 24px);
  background: var(--md-surface, #fff);
  color: var(--md-on-surface, #1a1c1e);
  font-size: var(--typescale-label-medium, 12px);
  font-family: inherit;
  cursor: pointer;
}

.xos-filter-btn:active {
  background: var(--md-surface-container-high, #e6e1e5);
}

.xos-filter-btn.active {
  background: var(--md-primary-container, #eaddff);
  border-color: var(--md-primary, #65558f);
  color: var(--md-primary, #65558f);
}

/* === Active Filters Bar === */
.xos-active-filters {
  display: none;
  flex-wrap: wrap;
  gap: var(--space-2, 6px);
  padding: var(--space-2, 4px) 0;
}

.xos-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1, 4px);
  padding: var(--space-1, 3px) var(--space-2, 8px);
  background: var(--md-secondary-container, #e8def8);
  border-radius: var(--radius-full, 24px);
  font-size: var(--typescale-label-small, 11px);
  color: var(--md-on-secondary-container, #1d192b);
}

.fc-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 10px;
  color: var(--md-on-secondary-container, #1d192b);
  padding: 0;
  border-radius: var(--radius-full, 50%);
}

/* === Result Cards (Compact Layout) === */
.xos-search-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.xos-search-card {
  background: var(--md-surface, #fff);
  border: 1px solid var(--md-outline-variant, #c4c6d0);
  border-radius: var(--radius-sm, 10px);
  padding: var(--space-3, 10px);
  margin-bottom: var(--space-3, 8px);
  transition: box-shadow var(--motion-hover, 0.15s);
}

.xos-search-card:active {
  box-shadow: var(--elevation-1, 0 1px 3px rgba(0,0,0,0.12));
}

.xos-search-card-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2, 6px);
}

.xos-search-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.xos-search-card-type {
  font-size: var(--typescale-label-medium, 12px);
  font-weight: var(--weight-semibold, 600);
  color: var(--md-on-surface, #1a1c1e);
}

.xos-search-card-status {
  font-size: var(--typescale-label-small, 11px);
  font-weight: var(--weight-medium, 500);
  padding: var(--space-0, 2px) var(--space-2, 6px);
  border-radius: var(--radius-full, 24px);
}

.xos-search-card-status.active {
  background: var(--md-tertiary-container, #d7ffd4);
  color: var(--md-on-tertiary-container, #003618);
}

.xos-search-card-status.expired {
  background: var(--md-surface-container-high, #e6e1e5);
  color: var(--md-on-surface-variant, #44474f);
}

.xos-search-card-route {
  display: flex;
  align-items: center;
  gap: var(--space-2, 6px);
  color: var(--md-primary, #65558f);
  padding: var(--space-1, 3px) 0;
}

.xos-search-card-route svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.xos-search-card-route-text {
  font-size: var(--typescale-body-medium, 14px);
  font-weight: var(--weight-medium, 500);
}

/* Compact meta grid */
.xos-search-card-meta-compact {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-1, 4px);
  padding-top: var(--space-1, 4px);
  border-top: 1px solid var(--md-outline-variant, #c4c6d0);
}

.xos-search-card-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.xos-search-card-meta-label {
  font-size: var(--typescale-label-small, 10px);
  color: var(--md-on-surface-variant, #44474f);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.xos-search-card-meta-value {
  font-size: var(--typescale-label-medium, 12px);
  color: var(--md-on-surface, #1a1c1e);
  font-weight: var(--weight-medium, 500);
}

.xos-search-card-meta-value.price {
  color: var(--md-tertiary, #006d31);
  font-weight: var(--weight-bold, 700);
}

/* === Loading Skeleton === */
.xos-search-loading {
  padding: var(--space-4, 12px) 0;
}

.xos-search-skeleton {
  background: var(--md-surface, #fff);
  border: 1px solid var(--md-outline-variant, #c4c6d0);
  border-radius: var(--radius-sm, 10px);
  padding: var(--space-3, 10px);
  margin-bottom: var(--space-3, 8px);
}

.ss-row {
  display: flex;
  gap: var(--space-2, 6px);
  margin-bottom: var(--space-2, 6px);
}

.ss-chip {
  width: 80px;
  height: 14px;
  background: var(--md-surface-container-high, #e6e1e5);
  border-radius: var(--radius-sm, 4px);
  animation: xos-pulse 1.5s infinite;
}

.ss-route {
  width: 180px;
  height: 14px;
  background: var(--md-surface-container-high, #e6e1e5);
  border-radius: var(--radius-sm, 4px);
  margin-bottom: var(--space-2, 6px);
  animation: xos-pulse 1.5s infinite;
}

.ss-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2, 6px);
  padding-top: var(--space-2, 6px);
  border-top: 1px solid var(--md-outline-variant, #c4c6d0);
}

.ss-label {
  width: 40px;
  height: 10px;
  background: var(--md-surface-container-high, #e6e1e5);
  border-radius: var(--radius-sm, 4px);
  margin-bottom: var(--space-1, 3px);
  animation: xos-pulse 1.5s infinite;
}

.ss-value {
  width: 60px;
  height: 12px;
  background: var(--md-surface-container-high, #e6e1e5);
  border-radius: var(--radius-sm, 4px);
  animation: xos-pulse 1.5s infinite;
}

@keyframes xos-pulse {
  0% { opacity: 1; }
  50% { opacity: 0.4; }
  100% { opacity: 1; }
}

/* === Empty State === */
.xos-search-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-24, 96px) var(--space-4, 16px);
  text-align: center;
}

.xos-search-empty-icon {
  font-size: 48px;
  margin-bottom: var(--space-4, 16px);
}

.xos-search-empty-title {
  font-size: var(--typescale-title-medium, 16px);
  color: var(--md-on-surface, #1a1c1e);
  margin: 0 0 var(--space-2, 6px);
}

.xos-search-empty-desc {
  font-size: var(--typescale-body-medium, 14px);
  color: var(--md-on-surface-variant, #44474f);
  margin: 0;
  max-width: 280px;
}

/* === Filter Sheet === */
.xos-filter-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sheet, 1100);
  background: var(--md-surface, #fff);
  border-radius: var(--radius-lg, 16px) var(--radius-lg, 16px) 0 0;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
  transform: translateY(100%);
  transition: transform var(--motion-duration-medium3, 0.3s) var(--motion-easing-emphasized, ease);
  max-height: 80vh;
  overflow-y: auto;
}

.xos-filter-sheet.active,
.xos-filter-sheet.open {
  transform: translateY(0);
}

.xos-filter-backdrop {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-sheet, 1100) - 1);
  background: rgba(0, 0, 0, 0.4);
  display: none;
}

.xos-filter-backdrop.active,
.xos-filter-backdrop.open {
  display: block;
}

/* Filter group */
.xos-filter-group {
  padding: var(--space-3) var(--space-6);
}

.xos-filter-label {
  display: block;
  font-size: var(--typescale-label-medium, 12px);
  font-weight: var(--weight-semibold, 600);
  color: var(--md-on-surface, #1a1c1e);
  margin-bottom: var(--space-2, 6px);
}

.xos-filter-select {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-4);
  border: 1.5px solid var(--md-outline, #79747e);
  border-radius: var(--radius-sm, 8px);
  background: var(--md-surface, #fff);
  font-size: var(--typescale-body-medium, 14px);
  color: var(--md-on-surface, #1a1c1e);
  outline: none;
  box-sizing: border-box;
  -webkit-appearance: none;
  appearance: none;
}

.xos-filter-select:focus {
  border-color: var(--md-primary, #65558f);
}

.xos-filter-actions {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-6);
  border-top: 1px solid var(--md-outline-variant, #c4c6d0);
}

.xos-filter-actions .xos-btn {
  flex: 1;
  height: 44px;
}

/* Button variants for filter sheet */
.xos-btn-outlined {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 44px;
  padding: 0 var(--space-6);
  border: 1.5px solid var(--md-outline, #79747e);
  border-radius: var(--radius-sm, 8px);
  background: transparent;
  color: var(--md-on-surface, #1a1c1e);
  font-size: var(--typescale-label-large, 14px);
  font-weight: var(--weight-semibold, 600);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  min-height: var(--touch-target-min, 48px);
  transition: background var(--motion-hover, 0.15s);
  -webkit-tap-highlight-color: transparent;
}

.xos-btn-outlined:hover {
  background: var(--md-surface-variant, #e7e0ec);
}

.xos-btn-filled {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 44px;
  padding: 0 var(--space-6);
  border: none;
  border-radius: var(--radius-sm, 8px);
  background: var(--md-primary, #65558f);
  color: var(--md-primary-on, #ffffff);
  font-size: var(--typescale-label-large, 14px);
  font-weight: var(--weight-semibold, 600);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  min-height: var(--touch-target-min, 48px);
  transition: opacity var(--motion-hover, 0.15s);
  -webkit-tap-highlight-color: transparent;
}

.xos-btn-filled:hover {
  opacity: 0.9;
}

.xos-filter-sheet-handle {
  display: flex;
  justify-content: center;
  padding: var(--space-3) 0 0;
}

.xos-filter-sheet-handle::after {
  content: '';
  width: 32px;
  height: 4px;
  background: var(--md-outline-variant, #c4c6d0);
  border-radius: var(--radius-full, 999px);
}

.xos-filter-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
}

.xos-filter-sheet-header h3 {
  margin: 0;
  font-size: var(--typescale-title-medium, 16px);
  font-weight: var(--weight-bold, 700);
  color: var(--md-on-surface, #1a1c1e);
}

.xos-filter-sheet-header button {
  width: var(--touch-target-min, 48px);
  height: var(--touch-target-min, 48px);
  border: none;
  background: transparent;
  font-size: 24px;
  color: var(--md-on-surface-variant, #44474f);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full, 999px);
}

/* === Desktop Adjustments === */
@media (min-width: 768px) {
  .xos-search-full {
    max-width: var(--container-mobile, 480px);
    left: 50%;
    transform: translate(-50%, 100%);
    box-shadow: var(--elevation-3, 0 4px 16px rgba(0,0,0,0.15));
    border-radius: 0;
  }

  .xos-search-full.active,
  .xos-search-full.open {
    transform: translate(-50%, 0);
  }
}