:root {
  color-scheme: dark;
  --color-bg: #313338;
  --color-surface: #2b2d31;
  --color-surface-raised: #383a40;
  --color-surface-glass: rgba(43, 45, 49, 0.72);
  --color-border: #1e1f22;
  --color-text: #f2f3f5;
  --color-text-muted: #949ba4;
  --color-accent: #5865f2;
  --color-accent-hover: #4752c4;
  --color-accent-contrast: #ffffff;
  --color-danger: #da373c;
  --color-danger-soft: rgba(218, 55, 60, 0.18);
  --color-danger-text: #ffb3b6;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --spacing-1: 4px;
  --spacing-2: 8px;
  --spacing-3: 12px;
  --spacing-4: 16px;
  --spacing-5: 24px;
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
}

* {
  scrollbar-color: #1e1f22 transparent;
  scrollbar-width: thin;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #1e1f22;
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background: #232428;
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

button {
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: var(--spacing-2) var(--spacing-3);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button:hover:not(:disabled) {
  border-color: var(--color-accent);
}

input[type='text'],
textarea {
  font-family: inherit;
  font-size: 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-2) var(--spacing-3);
  color: var(--color-text);
  background: var(--color-surface);
}

input[type='text']:focus,
textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.app {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.app__body {
  flex: 1;
  min-height: 0;
  display: flex;
}

.app__import-error {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-3);
  background: var(--color-danger-soft);
  color: var(--color-danger-text);
  padding: var(--spacing-2) var(--spacing-4);
  font-size: 0.85rem;
}

.app__import-error button {
  background: transparent;
  border: none;
  color: inherit;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0 var(--spacing-2);
}

@media (max-width: 640px) {
  .app__body {
    flex-direction: column;
  }
}
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-3);
  padding: var(--spacing-3) var(--spacing-4);
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  position: relative;
  z-index: 10;
}

.toolbar__add-form {
  display: flex;
  gap: var(--spacing-2);
  flex: 1;
  min-width: 200px;
}

.toolbar__add-form input {
  flex: 1;
  min-width: 0;
}

.toolbar__actions {
  display: flex;
  gap: var(--spacing-2);
  flex-wrap: wrap;
}

.toolbar__file-input {
  display: none;
}

.toolbar__groups-toggle--active {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

@media (max-width: 640px) {
  .toolbar {
    padding: var(--spacing-2) var(--spacing-3);
  }

  .toolbar__actions button {
    font-size: 0.8rem;
    padding: var(--spacing-1) var(--spacing-2);
  }
}
.type-picker-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
}

.type-picker {
  position: fixed;
  transform: translate(-50%, -50%);
  width: 240px;
  background: var(--color-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-3);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.type-picker__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.type-picker__close {
  border: none;
  background: transparent;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0 var(--spacing-1);
  color: var(--color-text-muted);
}

.type-picker__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.type-picker__chip {
  --chip-color: #999;
  border: 1.5px solid var(--chip-color);
  color: var(--chip-color);
  background: color-mix(in srgb, var(--chip-color) 18%, var(--color-surface));
  border-radius: 999px;
  padding: var(--spacing-1) var(--spacing-3);
  font-size: 0.8rem;
  font-weight: 600;
}

.type-picker__chip:hover {
  background: color-mix(in srgb, var(--chip-color) 32%, var(--color-surface));
}

.type-picker__custom-toggle {
  align-self: flex-start;
  border: 1px dashed var(--color-border);
  font-size: 0.8rem;
  background: transparent;
}

.type-picker__custom-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.type-picker__custom-form input[type='text'] {
  width: 100%;
}

.type-picker__custom-form input[type='color'] {
  width: 100%;
  height: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.type-picker__custom-actions {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-2);
}

.type-picker__custom-actions button {
  flex: 1;
}
.zoom-controls {
  position: absolute;
  right: var(--spacing-4);
  bottom: var(--spacing-4);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  z-index: 5;
}

.zoom-controls button {
  width: 34px;
  height: 34px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  line-height: 1;
  background: var(--color-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 640px) {
  .zoom-controls {
    right: var(--spacing-2);
    bottom: var(--spacing-2);
  }
}
.graph-view {
  position: relative;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  background: var(--color-bg);
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
}

.graph-view__svg {
  display: block;
  touch-action: none;
}

.graph-view__empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-5);
  color: var(--color-text-muted);
  font-size: 0.95rem;
  max-width: 320px;
  margin: 0 auto;
  pointer-events: none;
}

/* Groups */
.graph-view__groups {
  mix-blend-mode: screen;
  pointer-events: none;
}

.graph-view__group-blob {
  fill-opacity: 0.16;
  stroke-opacity: 0.16;
  stroke-linejoin: round;
  stroke-linecap: round;
  filter: url(#group-blob-blur);
}

/* Bubble */
@keyframes bubble-in {
  from {
    opacity: 0;
    transform: scale(0.4);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.bubble__inner {
  transform-origin: center;
  animation: bubble-in 320ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.bubble__body {
  fill: var(--color-surface);
  stroke: var(--bubble-color, var(--color-accent));
  stroke-width: 2.5px;
  cursor: grab;
  transition: stroke-width 120ms ease, filter 150ms ease, r 220ms ease;
}

.bubble:hover .bubble__body {
  filter: drop-shadow(0 0 10px var(--bubble-color, var(--color-accent)));
}

.bubble--selected .bubble__body {
  stroke: #ffffff;
  stroke-width: 3.5px;
  filter: drop-shadow(0 2px 12px var(--bubble-color, var(--color-accent)));
}

.bubble--pinned .bubble__body {
  stroke-dasharray: 4 3;
}

.bubble__label {
  font-size: 0.8rem;
  font-weight: 600;
  fill: var(--color-text);
  pointer-events: none;
  user-select: none;
}

.bubble__handle-hit {
  cursor: crosshair;
}

.bubble__handle-hit-area {
  fill: transparent;
}

.bubble__handle {
  fill: var(--color-accent);
  stroke: var(--color-surface);
  stroke-width: 2px;
  opacity: 0.85;
}

.bubble__handle-hit:hover .bubble__handle {
  opacity: 1;
}

.bubble__handle-plus {
  font-size: 11px;
  fill: var(--color-accent-contrast);
  pointer-events: none;
  user-select: none;
}

/* Edges */
@keyframes edge-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.edge {
  stroke-width: 3px;
  cursor: pointer;
  animation: edge-in 300ms ease;
  transition: stroke-width 150ms ease, opacity 150ms ease, filter 150ms ease;
}

.edge--selected {
  stroke-width: 4.5px;
}

.edge--highlight {
  stroke-width: 4.5px;
  filter: drop-shadow(0 0 6px currentColor);
}

.edge--dimmed {
  opacity: 0.25;
}

.graph-view__preview {
  stroke: var(--color-text-muted);
  stroke-width: 2px;
  stroke-dasharray: 6 5;
  pointer-events: none;
}

.graph-view__edge-delete circle {
  fill: var(--color-danger);
  stroke: var(--color-surface);
  stroke-width: 2px;
  cursor: pointer;
}

.graph-view__edge-delete text {
  fill: #fff;
  font-size: 13px;
  pointer-events: none;
  user-select: none;
}
.notes-panel {
  width: 300px;
  flex-shrink: 0;
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-left: 1px solid var(--color-border);
  padding: var(--spacing-4);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  overflow-y: auto;
}

.notes-panel__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.notes-panel__name {
  flex: 1;
  font-size: 1.05rem;
  font-weight: 600;
  border: 1px solid transparent;
  padding: var(--spacing-1) var(--spacing-2);
}

.notes-panel__name:hover,
.notes-panel__name:focus {
  border-color: var(--color-border);
}

.notes-panel__close {
  border: none;
  background: transparent;
  font-size: 1.2rem;
  line-height: 1;
  padding: var(--spacing-1) var(--spacing-2);
}

.notes-panel__notes-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.notes-panel__notes {
  resize: vertical;
  min-height: 120px;
}

.notes-panel__groups {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.notes-panel__groups-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.notes-panel__groups-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.notes-panel__group-chip {
  --chip-color: #999;
  border: 1.5px solid var(--chip-color);
  color: var(--chip-color);
  background: transparent;
  border-radius: 999px;
  padding: var(--spacing-1) var(--spacing-3);
  font-size: 0.8rem;
  font-weight: 600;
}

.notes-panel__group-chip--active {
  background: var(--chip-color);
  color: var(--color-accent-contrast);
}

.notes-panel__delete {
  margin-top: auto;
  color: var(--color-danger);
  border-color: var(--color-danger);
}

.notes-panel__delete:hover {
  background: var(--color-danger-soft);
}

@media (max-width: 640px) {
  .notes-panel {
    width: 100%;
    border-left: none;
    border-top: 1px solid var(--color-border);
    max-height: 45vh;
  }
}
.type-manager-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  padding: var(--spacing-4);
}

.type-manager {
  width: 320px;
  max-width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  background: var(--color-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-4);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.type-manager__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.type-manager__header h2 {
  font-size: 1.05rem;
  margin: 0;
}

.type-manager__header button {
  border: none;
  background: transparent;
  font-size: 1.2rem;
  line-height: 1;
}

.type-manager__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.type-manager__list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: 0.9rem;
}

.type-manager__swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
}

.type-manager__label {
  flex: 1;
}

.type-manager__delete {
  font-size: 0.75rem;
  color: var(--color-danger);
  border-color: var(--color-danger);
  padding: 2px var(--spacing-2);
}

.type-manager__form {
  display: flex;
  gap: var(--spacing-2);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-3);
}

.type-manager__form input[type='text'] {
  flex: 1;
  min-width: 0;
}

.type-manager__form input[type='color'] {
  width: 40px;
  height: 34px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px;
}
.group-manager-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  padding: var(--spacing-4);
}

.group-manager {
  width: 320px;
  max-width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  background: var(--color-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-4);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.group-manager__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.group-manager__header h2 {
  font-size: 1.05rem;
  margin: 0;
}

.group-manager__header button {
  border: none;
  background: transparent;
  font-size: 1.2rem;
  line-height: 1;
}

.group-manager__empty {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
}

.group-manager__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.group-manager__list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: 0.9rem;
}

.group-manager__swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
}

.group-manager__label {
  flex: 1;
}

.group-manager__delete {
  font-size: 0.75rem;
  color: var(--color-danger);
  border-color: var(--color-danger);
  padding: 2px var(--spacing-2);
}

.group-manager__form {
  display: flex;
  gap: var(--spacing-2);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-3);
}

.group-manager__form input[type='text'] {
  flex: 1;
  min-width: 0;
}

.group-manager__form input[type='color'] {
  width: 40px;
  height: 34px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px;
}
/* Layout-level rules for the app shell live in index.css.
   This file is reserved for App-specific overrides if needed. */