:root {
  --accent-green-dark: #33A015;
  --accent-green: #66B032;
  --accent-green-light: #9BD770;
  --accent-green-lighter: #C6F89D;
  --label-text-color: #dfe9d1;
}

.theme-light {
  --background: #EBF7E3;
  --background-secondary: #D5EFC7;
  --text-primary: #1B3409;
  --text-secondary: #375F1B;
  --accent: var(--accent-green);
  --accent-secondary: var(--accent-green-light);
  --border: #C0E2AE;
  --btn-outline-secondary-bg: #f8f9fa;
  --btn-outline-secondary-text: #6c757d;
  --btn-outline-secondary-border: #6c757d;
  --dropdown-bg: var(--background-secondary);
  --form-control-bg: #fff;
}

.theme-dark {
  --background: #1B3409;
  --background-secondary: #2B4A12;
  --text-primary: #EBF7E3;
  --text-secondary: #9BD770;
  --accent: var(--accent-green);
  --accent-secondary: var(--accent-green-lighter);
  --border: #375F1B;
  --btn-outline-secondary-bg: #2B4A12;
  --btn-outline-secondary-text: #EBF7E3;
  --btn-outline-secondary-border: #9BD770;
  --dropdown-bg: var(--background-secondary);
  --form-control-bg: #2B4A12;
  --form-control-color: var(--text-primary);
  --form-control-border: var(--border);
}

.form-check-input:checked {
  background-color: var(--accent-green);
  border-color: var(--accent-green);
}

.form-switch .form-check-input:focus {
  --bs-form-switch-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%239bd770'/%3e%3c/svg%3e");
}

.form-check-input {
  background-color: var(--accent-green-dark);
  border-color: var(--accent-green-dark);
}

.theme-dark .form-check-input {
  background-color: #495057;
  border-color: #6c757d;
}

.theme-dark .form-check-input:checked {
  background-color: var(--accent-green);
  border-color: var(--accent-green);
}

.form-check-input:focus {
  box-shadow: 0 0 0 0.25rem rgba(102, 176, 50, 0.25);
  border-color: var(#66B032);
}

body {
  font-family: sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  margin: 0;
  min-height: 100vh;
  display: grid;
  gap: 8px;
  grid-template-columns: auto;
  grid-template-rows: auto 1fr auto auto;
  grid-template-areas:
    "header"
    "main"
    "footer";
}

header {
  text-align: center;
  padding-top: 1rem;
}

header > div {
  font-size: 80%;
}

main {
  grid-area: main;
}

footer {
  text-align: center;
  background-color: var(--background-secondary);
  color: var(--text-secondary);
  grid-area: footer;
  padding: 1rem 0;
}

footer>h2 {
  font-size: calc(0.8rem + .9vw);
  margin: 0;
}

footer>p {
  font-size: calc(0.4rem + .9vw);
  margin: 0;
}

#loadingOverlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  font-size: 1.5em;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

#loadingOverlay.visible {
  visibility: visible;
  opacity: 1;
}

#loadingOverlay .spinner {
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top: 4px solid #fff;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin-bottom: 15px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.merkmal-main-header:hover {
  filter: brightness(1.05);
}

.merkmal-main-chevron {
  font-size: 0.9em;
  transition: transform 0.2s ease-in-out;
}

#merkmaleCollapseContainer #merkmaleFilters {
  background-color: var(--background);
}

.merkmal-group .merkmal-header {
  cursor: pointer;
  padding: 0.5rem 1rem;
  background-color: var(--background-secondary);
  border: 1px solid var(--border);
  border-radius: .25rem;
  margin-bottom: 0;
  transition: filter 0.15s ease-in-out;
}

.merkmal-group .merkmal-header:hover {
  filter: brightness(1.05);
}

.merkmal-group .collapse .merkmale-subs-container {
  border: 1px solid var(--border);
  border-top: none;
  padding: 1rem;
  border-radius: 0 0 .25rem .25rem;
  background-color: var(--background);
}

.merkmale-subs-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding-top: 0.5rem;
}

.merkmale-subs-container .form-check {
  min-width: 200px;
}

.theme-dark #districtDropdownContainer .btn-outline-secondary {
  background-color: var(--btn-outline-secondary-bg);
  color: var(--btn-outline-secondary-text);
  border-color: var(--btn-outline-secondary-border);
}

.theme-light #districtDropdownContainer .btn-outline-secondary {
  background-color: var(--btn-outline-secondary-bg);
  color: var(--btn-outline-secondary-text);
  border-color: var(--btn-outline-secondary-border);
}

.theme-dark #districtDropdownMenu {
  background-color: var(--dropdown-bg);
  border-color: var(--border);
}

.theme-dark #districtDropdownMenu .form-control {
  background-color: var(--form-control-bg);
  color: var(--form-control-color);
  border-color: var(--form-control-border);
}

.theme-dark #districtDropdownMenu label, .theme-dark #districtDropdownMenu .form-check-label {
  color: var(--text-primary);
}

.theme-light #districtDropdownMenu {
  background-color: var(--dropdown-bg);
  border-color: var(--border);
}

.theme-light #districtDropdownMenu .form-control {
  background-color: var(--form-control-bg);
  color: var(--text-primary);
  border-color: var(--border);
}

.theme-light #districtDropdownMenu label, .theme-light #districtDropdownMenu .form-check-label {
  color: var(--text-primary);
}

.theme-dark .district-item label {
  color: var(--text-primary);
}

.theme-light .district-item label {
  color: var(--text-primary);
}

#merkmalDropdownContainer .dropdown-menu {
  background-color: var(--dropdown-bg);
  border: 1px solid var(--border);
  border-radius: .375rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  z-index: 2000;

  /* Add these for content-fit behavior */
  max-height: none;         /* Remove scroll constraint */
  overflow: visible;        /* Allow full content to show */
  min-width: 100%;          /* Match dropdown button width */
}

.theme-dark #merkmalDropdownContainer .dropdown-menu {
  background-color: var(--dropdown-bg);
  color: var(--text-primary);
}

.theme-light #merkmalDropdownContainer .dropdown-menu {
  background-color: var(--dropdown-bg);
  color: var(--text-primary);
}

#merkmalDropdownContainer .btn-outline-secondary:hover {
  filter: brightness(1.05);
}

#merkmalDropdownContainer .merkmal-main-chevron {
  font-size: 0.9em;
  transition: transform 0.2s ease-in-out;
}

#merkmaleFilters {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-height: none !important;
  overflow: visible !important;
}

.merkmale-subs-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding-top: 0.5rem;
}

.merkmale-subs-container .form-check {
  min-width: 200px;
}

.info-control {
    padding: 8px 12px;
    font: 14px/16px Arial, Helvetica, sans-serif;
    background: white;
    background: rgba(255,255,255,0.85);
    box-shadow: 0 0 15px rgba(0,0,0,0.2);
    border-radius: 5px;
    color: #333;
    z-index: 800; /* Ensure it's above map tiles but below dropdowns */
}

.info-control h4 {
    margin: 0 0 5px;
    color: #555;
    font-size: 1.1em;
}

.theme-dark .info-control {
    background: var(--background-secondary);
    opacity: 0.9;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.theme-dark .info-control h4 {
    color: var(--text-secondary);
}


/* Highlight overlay used in parallel sets brushing */
.highlight-overlay {
  pointer-events: none;
  stroke: orange;
  stroke-width: 4;
  stroke-opacity: 1;
}

.sankey-label {
  fill: var(--text-primary);
  font-size: 16px;
  font-weight: bold;
}

rect.selected {
  fill: orange !important;
}

/* Fully selected (e.g., on link click) */
path.selected {
  stroke: orange !important;
  stroke-width: 3px !important;
}

/* Connected to selected node (lighter highlight) */
path.connected {
  stroke: #f7b84b !important; /* soft orange */
  stroke-width: 2px;
  stroke-opacity: 1;
}

/* Node labels in the parallel sets diagram */
.sankey-node-label {
  font-size: 16px;
  font-weight: 600;
  fill: var(--label-text-color);
  font-family: sans-serif;
  pointer-events: none;
}

/*
rect.selected + text.sankey-node-label {
  fill: black;
}

.sankey-node-label.selected-on-orange {
  fill: black !important;
}

*/