:root {
  --bg-primary: #f0f0f0;
  --bg-secondary: #fcfcfc;
  --text-primary: #000000;
  --text-secondary: #333333;
  --control-bg: #e0e0e0;
  --control-border: #cccccc;
  --button-bg: #ffffff;
  --button-text: #000000;
  --button-hover: #e8e8e8;
  --edge-color: #858585;
  --tooltip-bg: rgba(0, 0, 0, 0.8);
  --tooltip-text: #ffffff;
}

body.dark-mode {
  --bg-primary: #222222;
  --bg-secondary: #0c0c0c;
  --text-primary: #e0e0e0;
  --text-secondary: #b0b0b0;
  --control-bg: #333333;
  --control-border: #444444;
  --button-bg: #3a3a3a;
  --button-text: #e0e0e0;
  --button-hover: #4a4a4a;
  --edge-color: #666666;
  --tooltip-bg: rgba(255, 255, 255, 0.9);
  --tooltip-text: #000000;
}

body {
  margin: 0;
  padding: 10px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: sans-serif;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.disclaimer-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #ff333d;
  color: #000000;
  padding: 8px 15px;
  text-align: center;
  font-size: 14px;
  font-weight: bold;
  margin: 0;
  border-radius: 0;
  z-index: 1000;
}

.disclaimer-banner a {
  color: #000000;
  text-decoration: underline;
}

.disclaimer-banner a:hover {
  color: #333333;
}

.main-container {
  display: flex;
  gap: 10px;
  height: calc(100vh - 50px);
  position: relative;
}

.left-column {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 310px;
  flex-shrink: 0;
}

#sigma-container {
  flex: 1;
  background: var(--bg-secondary);
  transition: background-color 0.3s ease;
}

.bottom-right-credits {
  position: absolute;
  bottom: 15px;
  right: 300px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  pointer-events: none;
  z-index: 10;
}

#hygeos-logo {
  height: 60px;
  opacity: 0.7;
  transition: opacity 0.6s ease;
  pointer-events: auto;
}

#hygeos-logo:hover {
  opacity: 0.9;
}

.project-credit {
  font-size: 10px;
  color: var(--text-secondary);
  opacity: 1.0;
  font-style: italic;
  text-align: right;
  line-height: 1.3;
}

#header-sidebar {
  width: 280px;
  background: var(--control-bg);
  padding: 15px;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease;
}

#search-sidebar {
  width: 280px;
  background: var(--control-bg);
  padding: 15px;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease;
  overflow: hidden;
  flex: 1;
  min-height: 0;
}

#search-sidebar h3 {
  margin: 0 0 15px 0;
  font-size: 16px;
  color: var(--text-primary);
}

.sidebar-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 15px;
}

.sidebar-logo {
  width: 150px;
  height: 150px;
  margin-bottom: -20px;
  margin-top: -20px;
}

.app-title {
  font-size: 18px;
  font-weight: bold;
  margin: 0 0 8px 0;
  color: var(--text-primary);
}

.app-description {
  font-size: 12px;
  line-height: 1.4;
  margin: 0 0 -5px 0;
  color: var(--text-secondary);
}

.app-credit {
  font-size: 11px;
  font-style: italic;
  margin: 0;
  color: var(--text-secondary);
}

.sidebar-divider {
  width: 100%;
  height: 1px;
  background: var(--control-border);
  margin: 10px 0;
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 10px;
  text-align: center;
}

.search-box {
  position: relative;
  margin-bottom: 10px;
}

#search-input {
  width: 100%;
  padding: 8px 30px 8px 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--control-border);
  border-radius: 3px;
  color: var(--text-primary);
  font-size: 13px;
  box-sizing: border-box;
}

#search-input:focus {
  outline: none;
  border-color: var(--text-primary);
}

#search-clear {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  padding: 0 5px;
  line-height: 1;
  display: none;
}

#search-clear:hover {
  color: var(--text-primary);
}

#search-input:not(:placeholder-shown) ~ #search-clear {
  display: block;
}

.search-sort {
  display: flex;
  gap: 15px;
  margin-bottom: 10px;
  font-size: 11px;
  color: var(--text-secondary);
}

.search-sort label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.search-sort input[type="radio"] {
  cursor: pointer;
}

#search-results {
  flex: 1;
  overflow-y: auto;
  margin-top: 5px;
}

.search-result-item {
  padding: 8px;
  margin-bottom: 2px;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: background-color 0.2s ease;
  border-left: 3px solid transparent;
}

.search-result-item:hover {
  background: var(--button-hover);
  border-left-color: var(--text-primary);
}

.search-result-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 3px;
  font-size: 10px;
  color: var(--text-secondary);
}

.search-result-parent {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.search-result-degree {
  margin-left: 8px;
  flex-shrink: 0;
}

.search-empty {
  padding: 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
}

.search-parent-group {
  margin-bottom: 10px;
}

.search-parent-header {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 4px 8px;
  background: var(--control-bg);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

#parent-sidebar {
  width: 250px;
  background: var(--control-bg);
  padding: 15px;
  overflow-y: auto;
  transition: background-color 0.3s ease;
}

#parent-sidebar h3 {
  margin: 0 0 15px 0;
  font-size: 16px;
  color: var(--text-primary);
}

.grouping-mode-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 15px;
  padding: 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--control-border);
}

.grouping-mode-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.grouping-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.grouping-radio {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-primary);
  cursor: pointer;
}

.grouping-radio input[type="radio"] {
  cursor: pointer;
  margin: 0;
}

.grouping-params {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.param-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.param-item label {
  font-size: 12px;
  color: var(--text-primary);
  min-width: 65px;
}

.param-item input[type="number"] {
  flex: 1;
  padding: 5px 8px;
  background: var(--bg-primary);
  border: 1px solid var(--control-border);
  border-radius: 0;
  color: var(--text-primary);
  font-size: 12px;
  box-sizing: border-box;
}

.param-item input[type="number"]:focus {
  outline: none;
  border-color: var(--text-primary);
}

.apply-btn {
  padding: 6px 16px;
  background: var(--button-bg);
  border: 1px solid var(--control-border);
  border-radius: 0;
  color: var(--button-text);
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  transition: background-color 0.2s;
  white-space: nowrap;
  align-self: stretch;
}

.apply-btn:hover {
  background: var(--button-hover);
}

.apply-btn:active {
  transform: translateY(1px);
}

.preset-controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--control-border);
}

.preset-controls select,
.preset-controls input[type="text"] {
  width: 100%;
  padding: 6px 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--control-border);
  border-radius: 3px;
  color: var(--text-primary);
  font-size: 12px;
  box-sizing: border-box;
}

.preset-controls select:focus,
.preset-controls input[type="text"]:focus {
  outline: none;
  border-color: var(--text-primary);
}

.preset-controls button {
  padding: 6px 12px;
  background: var(--button-bg);
  border: 1px solid var(--control-border);
  border-radius: 0;
  color: var(--button-text);
  cursor: pointer;
  font-size: 12px;
  transition: background-color 0.2s ease;
}

.preset-controls button:hover {
  background: var(--button-hover);
}

.preset-controls button:active {
  transform: translateY(1px);
}

.preset-controls > div {
  display: flex;
  gap: 4px;
}

.preset-controls > div button {
  flex: 1;
}

.isolated-filter {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
  margin: 0;
  margin-top: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--control-border);
}

.isolated-filter input[type="checkbox"] {
  cursor: pointer;
  margin: 0;
}

.select-all-controls {
  display: flex;
  gap: 4px;
  margin: 8px 0;
  padding: 0 8px;
}

.select-all-controls button {
  flex: 1;
  padding: 6px 8px;
  font-size: 11px;
  background: var(--button-bg);
  color: var(--button-text);
  border: 1px solid var(--control-border);
  border-radius: 0;
  cursor: pointer;
  transition: background-color 0.2s;
}

.select-all-controls button:hover {
  background: var(--button-hover);
}

.select-all-controls button:active {
  transform: translateY(1px);
}

.parent-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  margin-bottom: 4px;
  background: var(--bg-secondary);
  transition: background-color 0.2s ease;
}

.parent-item:hover {
  background: var(--button-hover);
}

.parent-checkbox {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  cursor: pointer;
  order: 0;
  margin: 0;
}

.color-swatch {
  width: 24px;
  height: 24px;
  cursor: pointer;
  border: 2px solid var(--control-border);
  transition: transform 0.2s ease;
  flex-shrink: 0;
  order: 2;
}

.color-swatch:hover {
  transform: scale(1.1);
  border-color: var(--text-primary);
}

.parent-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1px;
  order: 1;
}

.parent-name {
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary);
}

.parent-count {
  font-size: 10px;
  color: var(--text-secondary);
}

.color-picker-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.controls {
  position: absolute;
  top: 0;
  left: 320px;
  right: 290px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: var(--control-bg);
  transition: background-color 0.3s ease;
  z-index: 100;
}

#iteration-counter {
  margin-left: auto;
  color: var(--text-primary);
}

button {
  margin-right: 10px;
  padding: 8px 16px;
  background: var(--button-bg);
  color: var(--button-text);
  border: 1px solid var(--control-border);
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
}

button:hover {
  background: var(--button-hover);
}

#theme-toggle {
  font-size: 18px;
  padding: 6px 12px;
}

label {
  color: var(--text-primary);
  transition: color 0.3s ease;
}

input[type="number"] {
  width: 80px;
  padding: 6px;
  margin-left: 5px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--control-border);
  transition: background-color 0.3s ease, color 0.3s ease;
}

input[type="checkbox"] {
  margin-left: 10px;
  cursor: pointer;
}

#tooltip {
  display: none;
  position: absolute;
  background: var(--tooltip-bg);
  color: var(--tooltip-text);
  padding: 8px 12px;
  pointer-events: none;
  z-index: 1000;
  font-size: 12px;
  max-width: 300px;
  word-wrap: break-word;
  transition: background-color 0.3s ease, color 0.3s ease;
}

#ping-indicator {
  position: absolute;
  font-size: 48px;
  pointer-events: none;
  display: none;
  z-index: 999;
  transform: translate(-50%, -50%);
  animation: ping-bounce 0.5s ease-in-out infinite;
}

@keyframes ping-bounce {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.2); }
}