/* ==========================================================================
   LT Transporto Priemonių Parko Analizė - Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   Theme variables (light default)
   -------------------------------------------------------------------------- */

:root {
  --bg: #f5f5f5;
  --bg-card: #fff;
  --bg-elevated: #f8f9fa;
  --bg-input: #fff;
  --text: #333;
  --text-muted: #666;
  --text-dim: #999;
  --border: #ddd;
  --border-strong: #dee2e6;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --danger: #dc2626;
  --hover: #e9ecef;
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-strong: rgba(0, 0, 0, 0.2);
  --overlay: rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] {
  --bg: #1a1a1a;
  --bg-card: #2d2d2d;
  --bg-elevated: #363636;
  --bg-input: #2d2d2d;
  --text: #e5e5e5;
  --text-muted: #a3a3a3;
  --text-dim: #737373;
  --border: #404040;
  --border-strong: #525252;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --danger: #ef4444;
  --hover: #404040;
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-strong: rgba(0, 0, 0, 0.5);
  --overlay: rgba(0, 0, 0, 0.6);
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding: 20px;
  transition: background 0.2s, color 0.2s;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}

.data-version {
  position: absolute;
  left: 0;
  top: 50%;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 10px;
}

/* --------------------------------------------------------------------------
   Header & theme toggle
   -------------------------------------------------------------------------- */

.header {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  position: relative;
  padding-right: 38px;
}

.header h1 {
  margin-bottom: 0;
}

.theme-toggle {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: background 0.2s, border-color 0.2s;
}

.theme-toggle:hover {
  background: var(--hover);
}

.theme-icon::before {
  content: "☾";
}

[data-theme="dark"] .theme-icon::before {
  content: "☀";
}

/* --------------------------------------------------------------------------
   Loading state
   -------------------------------------------------------------------------- */

.loading {
  text-align: center;
  padding: 60px 20px;
}

.loading .spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}

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

.progress-wrap {
  display: none;
  width: 260px;
  margin: 12px auto 0;
  background: var(--border);
  border-radius: 4px;
  height: 8px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.2s;
}

.progress-text {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 6px;
}

/* --------------------------------------------------------------------------
   App layout
   -------------------------------------------------------------------------- */

.app {
  display: none;
}

/* --------------------------------------------------------------------------
   Filters
   -------------------------------------------------------------------------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
  background: var(--bg-card);
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 1px 3px var(--shadow);
}

.filter-group {
  flex: 1;
  min-width: 180px;
}

.filter-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.filter-group label .label-hint {
  font-weight: 400;
  color: var(--text-dim);
  text-decoration: none;
}

.filter-group label .label-hint:hover {
  color: var(--accent);
}

.filter-group label .label-hint-clickable {
  cursor: pointer;
}

.filter-actions {
  display: flex;
  gap: 16px;
  margin: -8px 0 12px 0;
}

.more-toggle {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--accent);
  cursor: pointer;
  user-select: none;
}

.more-toggle:hover {
  text-decoration: underline;
}

.clear-filters {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--danger);
  cursor: pointer;
  user-select: none;
}

.extra-filters {
  display: none;
}

.extra-filters.open {
  display: flex;
}

/* --------------------------------------------------------------------------
   View tabs
   -------------------------------------------------------------------------- */

.view-tabs {
  display: flex;
  gap: 8px;
  margin: 4px 0 12px;
}

.view-tab {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.view-tab:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.view-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

#app[data-view="map"] .view-table {
  display: none;
}

#app[data-view="table"] .view-map {
  display: none;
}

#app[data-view="graph"] .view-table,
#app[data-view="graph"] .view-map {
  display: none;
}

#app[data-view="map"] .view-graph,
#app[data-view="table"] .view-graph {
  display: none;
}

/* --------------------------------------------------------------------------
   Map
   -------------------------------------------------------------------------- */

.map-card {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 1px 3px var(--shadow);
  margin-bottom: 16px;
}

.map-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 12px;
}

.map-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.map-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.map-content {
  display: grid;
  gap: 10px;
}

.lt-map {
  width: 100%;
  max-width: 780px;
  margin: 0 auto;
}

.lt-map svg {
  width: 100%;
  height: auto;
  display: block;
}

.apskritis-path {
  fill: #c7d2fe;
  stroke: var(--border-strong);
  stroke-width: 1;
  transition: fill 0.2s, stroke 0.2s;
  cursor: pointer;
}

[data-theme="dark"] .apskritis-path {
  fill: #1e3a8a;
}

.apskritis-path.level-0 { fill: #e5e7eb; }
.apskritis-path.level-1 { fill: #c7d2fe; }
.apskritis-path.level-2 { fill: #93c5fd; }
.apskritis-path.level-3 { fill: #60a5fa; }
.apskritis-path.level-4 { fill: #3b82f6; }
.apskritis-path.level-5 { fill: #1d4ed8; }

[data-theme="dark"] .apskritis-path.level-0 { fill: #111827; }
[data-theme="dark"] .apskritis-path.level-1 { fill: #1e3a8a; }
[data-theme="dark"] .apskritis-path.level-2 { fill: #1d4ed8; }
[data-theme="dark"] .apskritis-path.level-3 { fill: #2563eb; }
[data-theme="dark"] .apskritis-path.level-4 { fill: #3b82f6; }
[data-theme="dark"] .apskritis-path.level-5 { fill: #60a5fa; }

.apskritis-path:hover {
  fill: #93c5fd;
}

[data-theme="dark"] .apskritis-path:hover {
  fill: #2563eb;
}

.apskritis-path.selected {
  fill: #60a5fa;
  stroke: var(--accent);
  stroke-width: 1.5;
}

[data-theme="dark"] .apskritis-path.selected {
  fill: #3b82f6;
}

.map-count {
  font-size: 16px;
  font-weight: 700;
  fill: var(--text);
  paint-order: stroke;
  stroke: var(--bg-card);
  stroke-width: 3px;
  pointer-events: none;
}

.map-meta {
  display: grid;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

.map-unknown {
  color: var(--text-muted);
}

.map-hint {
  color: var(--text-dim);
}

/* --------------------------------------------------------------------------
   Graph
   -------------------------------------------------------------------------- */

.graph-card {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 1px 3px var(--shadow);
  margin-bottom: 16px;
}

.graph-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.select-input {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.9rem;
  background: var(--bg-input);
  color: var(--text);
}

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

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: none;
  color: var(--text-muted);
}

.graph-meta {
  margin-bottom: 10px;
}

.graph-title {
  font-size: 1rem;
  font-weight: 600;
}

.graph-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.graph-bars {
  display: grid;
  gap: 8px;
}

.graph-row {
  display: grid;
  grid-template-columns: minmax(120px, 180px) 1fr auto;
  gap: 10px;
  align-items: center;
}

.graph-label {
  font-size: 0.85rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.graph-track {
  height: 12px;
  background: var(--bg-elevated);
  border-radius: 999px;
  overflow: hidden;
}

.graph-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #60a5fa);
  border-radius: 999px;
  min-width: 2px;
}

.graph-value {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.graph-empty {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  padding: 12px 0;
}

@media (max-width: 640px) {
  .map-count {
    font-size: 12px;
  }

  .graph-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .graph-value {
    justify-self: start;
  }
}

/* --------------------------------------------------------------------------
   Combo box (dropdown filter)
   -------------------------------------------------------------------------- */

.combo {
  position: relative;
}

.combo input {
  width: 100%;
  padding: 8px;
  padding-right: 28px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.9rem;
  background: var(--bg-input);
  color: var(--text);
}

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

.combo .clear-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-dim);
  font-size: 1.1rem;
  line-height: 1;
  padding: 0 2px;
  display: none;
}

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

.combo.has-value .clear-btn {
  display: block;
}

.combo .dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 240px;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 4px 4px;
  z-index: 100;
  box-shadow: 0 4px 8px var(--shadow-strong);
}

.combo.open .dropdown {
  display: block;
}

.combo .dropdown .opt {
  padding: 6px 10px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
}

.combo .dropdown .opt:hover,
.combo .dropdown .opt.active {
  background: var(--hover);
}

.combo .dropdown .opt.selected {
  font-weight: 600;
  color: var(--accent);
}

.combo .dropdown .no-match {
  padding: 8px 10px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Numeric filter input
   -------------------------------------------------------------------------- */

.num-filter {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.9rem;
  background: var(--bg-input);
  color: var(--text);
}

.num-filter:focus {
  outline: none;
  border-color: var(--accent);
}

/* --------------------------------------------------------------------------
   Data table
   -------------------------------------------------------------------------- */

.info-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.table-wrap {
  overflow-x: auto;
  background: var(--bg-card);
  border-radius: 8px;
  box-shadow: 0 1px 3px var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th {
  background: var(--bg-elevated);
  position: sticky;
  top: 0;
  padding: 10px 12px;
  text-align: left;
  border-bottom: 2px solid var(--border-strong);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}

th:hover {
  color: var(--text);
}

th .sort-arrow {
  color: var(--accent);
  margin-left: 3px;
}

td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  color: var(--text);
}

tr:hover td {
  background: var(--bg-elevated);
}

tbody tr {
  cursor: pointer;
}

/* Querying state (loading overlay) */
.querying .table-wrap,
.querying .pagination {
  opacity: 0.5;
}

.mini-spinner {
  display: none;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-left: 6px;
}

.querying .mini-spinner {
  display: inline-block;
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.pagination button {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  font-size: 0.85rem;
}

.pagination button:disabled {
  opacity: 0.4;
  cursor: default;
}

.pagination button:not(:disabled):hover {
  background: var(--hover);
}

.pagination span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Modal (detail view)
   -------------------------------------------------------------------------- */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 200;
  justify-content: center;
  align-items: center;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--bg-card);
  border-radius: 8px;
  box-shadow: 0 8px 30px var(--shadow-strong);
  max-width: 700px;
  width: 90%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 1rem;
  color: var(--text);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-dim);
  padding: 0 4px;
}

.modal-close:hover {
  color: var(--text);
}

.modal-body {
  overflow-y: auto;
  padding: 0;
}

.modal-info {
  padding: 16px;
}

.modal-info p {
  margin: 0;
  line-height: 1.5;
  color: var(--text);
}

.detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.detail-table tr:hover {
  background: var(--bg-elevated);
}

.detail-table th {
  text-align: left;
  padding: 6px 16px;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  white-space: nowrap;
  width: 40%;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.detail-table td {
  padding: 6px 16px;
  border-bottom: 1px solid var(--border);
  word-break: break-word;
  color: var(--text);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.app-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.app-footer .footer-github {
  display: inline-flex;
  align-items: center;
  margin-left: 0.5rem;
  color: inherit;
  opacity: 0.85;
}

.app-footer .footer-github:hover {
  opacity: 1;
}