.graphing-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 392px;
  gap: 0;
  height: 100%;
  min-height: 0;
}

.graph-workspace,
.graph-editor-panel {
  min-width: 0;
  min-height: 0;
}

.graph-workspace {
  background: var(--graph-canvas-bg);
  overflow: hidden;
}

.graph-surface {
  position: relative;
  height: 100%;
  min-height: 0;
}

.graph-settings-panel {
  position: absolute;
  top: 54px;
  right: 12px;
  z-index: 5;
  box-sizing: border-box;
  width: min(404px, calc(100% - 24px));
  max-width: calc(100% - 24px);
  max-height: calc(100% - 66px);
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 16px;
  border-radius: 10px;
  background: var(--graph-panel-bg);
  color: var(--graph-panel-text);
  box-shadow: var(--shadow-menu);
  border: 1px solid var(--border-subtle);
}

.graph-settings-header h3 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.graph-settings-section-heading {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text);
  font-size: 0.86rem;
}

.graph-settings-section-heading.standalone {
  margin-bottom: 6px;
}

.graph-settings-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 0.82rem;
}

.graph-settings-grid {
  margin-top: 6px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 10px;
  min-width: 0;
}

.graph-settings-field,
.graph-settings-select-label {
  display: grid;
  gap: 4px;
  min-width: 0;
  font-size: 0.83rem;
  color: var(--text-soft);
}

.graph-settings-field input,
.graph-settings-select {
  width: 100%;
  min-height: 36px;
  padding: 0 10px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-hover);
  color: inherit;
}

.graph-settings-choice-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
  min-width: 0;
}

.graph-settings-choice {
  min-width: 0;
  min-height: 36px;
  padding: 0 0.75rem;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-hover);
  color: inherit;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.graph-settings-choice.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--button-equals-text);
}

.graph-settings-select-label {
  margin-top: 16px;
}

.graph-settings-theme-select {
  margin-top: 16px;
}

.graph-canvas {
  width: 100%;
  height: 100%;
  min-height: 100%;
  display: block;
  background: var(--graph-canvas-bg);
}

.graph-overlay {
  position: absolute;
  display: flex;
  pointer-events: none;
}

.graph-surface-tools {
  top: 12px;
  right: 12px;
}

.graph-tool-cluster,
.graph-zoom-controls {
  display: flex;
  gap: 1px;
  padding: 0;
  border-radius: 4px;
  overflow: hidden;
  pointer-events: auto;
  background: var(--graph-panel-bg);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.28);
}

.graph-zoom-controls {
  right: 12px;
  bottom: 12px;
  flex-direction: column;
}

.graph-surface-button {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--graph-panel-bg);
  color: var(--text);
  border: 0;
  font-size: 1.35rem;
  transition: background-color 120ms ease, color 120ms ease, box-shadow 120ms ease;
}

.graph-surface-button:hover,
.graph-surface-button:focus-visible,
.graph-surface-button.active {
  background: var(--graph-panel-hover-bg);
}

.graph-surface-button.active {
  background: var(--graph-panel-active-bg);
  color: var(--text);
  box-shadow: var(--graph-active-ring);
}

.graph-surface-button svg {
  width: 17px;
  height: 17px;
}

.graph-surface-button[aria-pressed='true'] svg {
  filter: drop-shadow(0 0 0.2px currentColor);
}

.graph-editor-panel {
  display: flex;
  flex-direction: column;
  background: var(--graph-editor-bg);
  border-left: 1px solid var(--border-subtle);
}

.graph-analysis-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  padding-top: 4px;
  color: var(--text);
}

.graph-analysis-header-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  margin: 0 8px;
  border-radius: 4px;
  overflow: hidden;
}

.graph-analysis-back {
  min-width: 70px;
  min-height: 40px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  background: var(--graph-expression-color, #0063b1);
  color: #ffffff;
}

.graph-analysis-back:hover,
.graph-analysis-back:focus-visible {
  filter: brightness(1.06);
  outline: none;
}

.graph-analysis-back-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.graph-analysis-back-icon svg {
  width: 15px;
  height: 15px;
}

.graph-analysis-back-badge {
  display: inline-flex;
  align-items: center;
  gap: 1px;
  font-style: italic;
  font-weight: 500;
}

.graph-analysis-back-badge .graph-expression-index {
  margin-bottom: 7px;
}

.graph-analysis-expression {
  min-width: 0;
  min-height: 40px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  background: var(--graph-input-bg);
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.graph-analysis-title {
  margin: 12px 12px 0;
  font-size: 1.95rem;
  font-weight: 500;
}

.graph-analysis-list,
.graph-analysis-error {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 10px 12px 14px;
}

.graph-analysis-error {
  line-height: 1.45;
}

.graph-analysis-item {
  padding: 7px 0;
}

.graph-analysis-item h4 {
  margin: 0 0 7px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-soft);
}

.graph-analysis-values,
.graph-analysis-grid {
  display: grid;
  gap: 6px;
}

.graph-analysis-grid-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}

.graph-analysis-math,
.graph-analysis-text,
.graph-analysis-grid-direction {
  font-size: 1rem;
  line-height: 1.35;
}

.graph-analysis-grid-direction {
  text-align: right;
}

.graph-compact-editor-switcher {
  display: flex;
  gap: 6px;
  margin: 6px 8px 2px;
  padding: 4px;
  border-radius: 999px;
  background: var(--graph-input-bg);
  border: 1px solid var(--border-subtle);
}

.graph-compact-editor-button {
  flex: 1;
  min-height: 34px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.graph-compact-editor-button:hover,
.graph-compact-editor-button:focus-visible {
  background: var(--surface-hover);
  color: var(--text);
  outline: none;
}

.graph-compact-editor-button.active {
  background: var(--accent);
  color: var(--button-equals-text);
}

.graph-expression-pane,
.graph-keypad-pane {
  min-height: 0;
}

.graph-expression-pane {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.graph-keypad-pane {
  display: flex;
  flex-direction: column;
}

.graph-expression-list {
  padding: 8px 0 0;
}

.graph-expression-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: stretch;
  margin: 0 0 2px 2px;
  background: transparent;
}

.graph-expression-row.active {
  background: transparent;
}

.graph-expression-row.invalid {
  box-shadow: inset 3px 0 0 var(--danger);
}

.graph-expression-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  background: var(--graph-expression-color, #737378);
  color: var(--text);
  border: 0;
  border-radius: 4px 0 0 4px;
  font-style: italic;
  font-weight: 500;
  position: relative;
}

.graph-expression-label,
.graph-expression-visibility-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.graph-expression-label {
  gap: 1px;
}

.graph-expression-visibility-icon {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.graph-expression-visibility-icon svg {
  width: 16px;
  height: 16px;
}

.graph-expression-symbol {
  font-size: 1.05rem;
  line-height: 1;
}

.graph-expression-index {
  align-self: flex-end;
  margin-bottom: 8px;
  font-size: 0.68rem;
  line-height: 1;
  font-style: normal;
}

.graph-expression-row.add-row .graph-expression-badge {
  background: var(--graph-add-badge-bg);
  color: var(--graph-add-badge-text);
}

.graph-expression-row.filled-row:hover .graph-expression-label {
  opacity: 0;
}

.graph-expression-row.filled-row:hover .graph-expression-visibility-icon {
  opacity: 1;
}

.graph-expression-field > .graph-expression-input[type="text"] {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border-subtle);
  border-left: 0;
  border-radius: 0 4px 4px 0;
  background: var(--graph-input-bg);
  color: var(--text);
  box-shadow: none;
}

.graph-expression-field {
  position: relative;
}

.graph-expression-actions {
  position: absolute;
  top: 2px;
  right: 4px;
  bottom: 2px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.graph-expression-row.filled-row:hover .graph-expression-actions {
  opacity: 1;
  pointer-events: auto;
}

.graph-expression-row.filled-row:focus-within .graph-expression-actions {
  opacity: 1;
  pointer-events: auto;
}

.graph-expression-row.style-open .graph-expression-actions {
  opacity: 1;
  pointer-events: auto;
}

.graph-expression-row.filled-row:hover .graph-expression-input {
  padding-right: 136px;
}

.graph-expression-row.filled-row:focus-within .graph-expression-input {
  padding-right: 136px;
}

.graph-expression-row.style-open .graph-expression-input {
  padding-right: 136px;
}

.graph-expression-action {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--text);
}

.graph-expression-action:hover,
.graph-expression-action:focus-visible {
  background: var(--surface-hover);
  color: var(--text);
  outline: none;
}

.graph-expression-action.active {
  background: var(--graph-success);
  color: #ffffff;
}

.graph-expression-action svg {
  width: 16px;
  height: 16px;
}

.graph-expression-row.hidden-row .graph-expression-input {
  color: var(--text-faint);
  background: var(--graph-hidden-input-bg);
  border-color: var(--graph-hidden-input-border);
}

.graph-expression-row.hidden-row .graph-expression-badge {
  background: var(--graph-hidden-badge-bg);
  color: var(--graph-hidden-badge-text);
}

.graph-expression-row.hidden-row:hover .graph-expression-badge {
  background: var(--graph-hidden-badge-hover-bg);
}

.graph-expression-style-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 8px;
  z-index: 9;
  width: 356px;
  max-width: calc(100vw - 48px);
  padding: 18px 20px 16px;
  border-radius: 10px;
  background: var(--graph-style-panel-bg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-menu);
}

.graph-expression-style-panel h3 {
  margin: 0 0 14px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
}

.graph-expression-style-section-label,
.graph-expression-style-select-label > span {
  display: block;
  margin-bottom: 10px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.graph-expression-color-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px 12px;
  margin-bottom: 18px;
}

.graph-expression-color-swatch {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 0;
  background: var(--graph-swatch-color);
  box-shadow: inset 0 0 0 1px var(--graph-swatch-ring);
}

.graph-expression-color-swatch.selected {
  box-shadow: var(--graph-swatch-selected-ring);
}

.graph-expression-style-select {
  width: 100%;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: var(--graph-style-select-bg);
  color: var(--text);
}

.graph-expression-input::placeholder {
  color: var(--text-faint);
}

.graph-expression-row.add-row .graph-expression-input {
  background: var(--graph-input-add-bg);
  border-color: var(--graph-input-add-border);
}

.graph-expression-row.active .graph-expression-input,
.graph-expression-input:focus {
  background: var(--graph-input-focus-bg);
  border-color: var(--graph-input-focus-border);
  outline: none;
}

.graph-editor-stage {
  flex: 1;
  min-height: 120px;
}

.graph-keypad-shell {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-subtle);
}

.graph-keypad-menu-area {
  position: relative;
  border-top: 1px solid var(--border-faint);
}

.graph-keypad-groups {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 38px;
  padding: 0 10px;
}

.graph-keypad-group {
  min-height: 30px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.35rem;
  background: transparent;
  border: 0;
  color: var(--text);
  font-size: 0.85rem;
}

.graph-keypad-group.active,
.graph-keypad-group:hover,
.graph-keypad-group:focus-visible {
  color: var(--text);
}

.graph-keypad-group-icon {
  display: inline-flex;
  width: 15px;
  height: 15px;
}

.graph-keypad-group-icon svg {
  width: 100%;
  height: 100%;
}

.graph-keypad-caret {
  color: var(--text-faint);
  font-size: 0.7rem;
}

.graphing-operator-menu {
  position: absolute;
  left: 8px;
  top: calc(100% - 1px);
  bottom: auto;
  z-index: 4;
  display: grid;
  gap: 2px;
  padding: 2px;
  background: color-mix(in srgb, var(--window-bg) 94%, #111);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  box-shadow: var(--shadow-menu);
}

.graphing-operator-menu-trig {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  left: 8px;
  right: auto;
  width: min(320px, calc(100% - 16px));
}

.graphing-operator-menu-inequality {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  width: min(320px, calc(100% - 16px));
}

.graphing-operator-menu-function {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  left: auto;
  right: 8px;
  transform: none;
  width: min(194px, calc(100% - 16px));
}

.graphing-menu-toggle,
.graphing-menu-item {
  min-height: 44px;
  border-radius: 4px;
  border: 1px solid var(--border-faint);
  background: var(--button-default-bg);
  color: var(--text);
  font-size: 0.9rem;
}

.graphing-menu-toggle:hover,
.graphing-menu-toggle:focus-visible,
.graphing-menu-toggle.active,
.graphing-menu-item:hover,
.graphing-menu-item:focus-visible {
  background: var(--button-default-hover-bg);
}

.graph-keypad-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 2px;
  padding: 2px 0 0;
  background: transparent;
}

.graph-keypad-grid .calc-button {
  min-height: 0;
  height: 42px;
  border-radius: 3px;
}

.graph-keypad-grid .calc-button.equals {
  color: var(--button-equals-text);
}

@media (max-height: 760px) {
  .graphing-layout.short-height-layout .graph-editor-panel {
    min-height: 0;
  }

  .graphing-layout.short-height-layout .graph-expression-pane,
  .graphing-layout.short-height-layout .graph-keypad-pane {
    flex: 1;
    min-height: 0;
  }

  .graphing-layout.short-height-layout.compact-editor-expressions .graph-keypad-pane {
    display: none;
  }

  .graphing-layout.short-height-layout.compact-editor-keypad .graph-expression-pane {
    display: none;
  }

  .graphing-layout.short-height-layout .graph-expression-list {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding-top: 4px;
  }

  .graphing-layout.short-height-layout .graph-editor-stage {
    min-height: 24px;
  }

  .graphing-layout.short-height-layout .graph-keypad-shell {
    margin-top: 0;
  }

  .graphing-layout.short-height-layout .graph-keypad-groups {
    gap: 0.55rem;
    min-height: 34px;
    padding: 0 8px;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .graphing-layout.short-height-layout .graph-keypad-group {
    flex: 0 0 auto;
    min-height: 28px;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  .graphing-layout.short-height-layout .graphing-menu-toggle,
  .graphing-layout.short-height-layout .graphing-menu-item {
    min-height: 38px;
  }

  .graphing-layout.short-height-layout .graph-keypad-grid .calc-button {
    height: 36px;
    font-size: 0.9rem;
  }
}

@media (max-width: 1023px) {
  .graphing-layout {
    grid-template-columns: minmax(0, 1fr) 376px;
  }
}

@media (max-width: 767px) {
  .graphing-layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
  }

  .graphing-layout.mobile-view-graph .graph-editor-panel {
    display: none;
  }

  .graphing-layout.mobile-view-editor .graph-workspace {
    display: none;
  }

  .graph-editor-panel {
    min-height: 0;
    border-left: 0;
  }

  .graph-expression-list {
    flex: 1;
    min-height: 0;
    overflow: auto;
  }

  .graph-editor-stage {
    display: none;
  }

  .graph-keypad-shell {
    margin-top: 0;
    flex: 0 0 auto;
  }

  .graph-keypad-groups {
    gap: 0.7rem;
    min-height: 34px;
    padding: 0 8px;
  }

  .graph-keypad-group {
    min-height: 28px;
    font-size: 0.8rem;
  }

  .graph-expression-row {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .graph-expression-input {
    height: 40px;
  }

  .graph-keypad-grid .calc-button {
    height: 41px;
    font-size: 0.92rem;
  }

  .graph-surface-tools {
    top: 8px;
    right: 8px;
  }

  .graph-settings-panel {
    top: 46px;
    right: 8px;
    bottom: 8px;
    width: min(404px, calc(100% - 16px));
    max-height: calc(100% - 54px);
  }

  .graph-zoom-controls {
    right: 8px;
    bottom: 8px;
  }

  .graphing-operator-menu-trig,
  .graphing-operator-menu-inequality,
  .graphing-operator-menu-function {
    width: min(100%, calc(100% - 16px));
  }
}