:root { font: 16px system-ui, sans-serif; color: var(--calc-text); background: var(--calc-input); color-scheme: dark; --line: var(--calc-border); --muted: var(--calc-muted); }
* { box-sizing: border-box; }
body { margin: 0px; }
button, input { font: inherit; }
:where(.calculator-header, #inspector, .view-tools) button { color: inherit; background: var(--calc-hover); border: 1px solid var(--line); border-radius: 8px; padding: 9px 12px; min-height: 40px; cursor: pointer; }
:where(.calculator-header, #inspector, .view-tools) button:hover, :where(.calculator-header, #inspector, .view-tools) button[aria-pressed="true"] { border-color: var(--calc-border-strong); background: var(--calc-selected); }
:where(.calculator-header, #inspector, .view-tools) button:disabled { opacity: 0.35; cursor: default; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--calc-border-strong); outline-offset: 2px; }
.calculator-header { height: 76px; display: flex; align-items: center; gap: 30px; padding: 10px 22px; border-bottom: 1px solid var(--line); }
.brand { color: var(--calc-text); text-decoration: none; font-size: 24px; font-weight: 200; letter-spacing: 0.07em; }
.brand small { display: block; color: var(--calc-muted); font: italic 12px Georgia, serif; letter-spacing: 0.05em; }
.identity { font-size: 16px; font-weight: 300; }
.identity small { display: block; font-size: 10px; text-transform: uppercase; letter-spacing: 0.13em; color: var(--muted); margin-top: 3px; }
.workspace-nav { margin-left: auto; display: flex; gap: 6px; }
.calculator-main { position: relative; height: calc(100dvh - 76px); display: grid; grid-template-columns: 370px minmax(0px, 1fr); }
#stage { grid-area: 1 / 2; position: relative; min-width: 0px; min-height: 0px; background: rgb(0, 0, 0); }
#graph { width: 100%; height: 100%; border: 0px; }
.view-tools { position: absolute; top: 16px; left: 16px; right: 16px; display: flex; gap: 12px; justify-content: flex-end; flex-wrap: wrap; pointer-events: none; }
.view-tools > div, .view-tools > button { pointer-events: auto; background: var(--calc-panel); }
.view-tools > div { display: flex; gap: 4px; border-radius: 9px; }
#graph-status { position: absolute; bottom: 12px; left: 22px; right: 22px; color: var(--muted); font-size: 12px; pointer-events: none; }
#inspector { grid-area: 1 / 1; border-right: 1px solid var(--line); overflow: auto; padding: 20px 14px; background: linear-gradient(var(--calc-input),var(--calc-input)); }
.document-heading { padding: 0px 5px 18px; }
.document-heading label { display: block; font-size: 10px; color: var(--muted); letter-spacing: 0.17em; text-transform: uppercase; margin-bottom: 8px; }
#title { width: 100%; background: none; border: 0px; color: inherit; font-size: 20px; font-weight: 300; padding: 0px; }
#objects article { border-top: 1px solid var(--line); padding: 15px 0px; }
#objects article:focus-within { border-top-color: var(--calc-border-strong); }
.object-heading { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; margin-bottom: 10px; }
.object-heading span { flex: 1 1 0%; }
.object-heading button { border: 0px; min-height: 32px; padding: 5px 8px; }
.math-host { min-height: 64px; overflow-x: auto; max-width: 100%; }
math-field { display: block; width: 100%; min-height: 64px; border: 0px; border-radius: 6px; padding: 8px 2px; color: var(--calc-text); background: transparent; font-size: 24px; --caret-color: var(--calc-accent); --selection-background-color: var(--calc-selected); --contains-highlight-background-color: var(--calc-selected); --primary: var(--calc-accent); }
math-field::part(menu-toggle) { display: none; }
math-field[read-only]::part(virtual-keyboard-toggle) { display: none; }
.actions { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 10px; }
.actions button { font-size: 12px; min-height: 36px; padding: 6px 9px; }
.result-note, .object-error { font-size: 11px; line-height: 1.5; margin: 9px 4px; color: var(--muted); }
.object-error { color: var(--calc-error); }
.result-status { font-size: 10px; letter-spacing: 0.07em; text-transform: uppercase; color: var(--calc-muted); }
.add { width: 100%; margin: 14px 0px; }
.templates { display: flex; gap: 6px; }
.templates button { flex: 1 1 0%; font-size: 12px; }
.precision { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 11px; color: var(--muted); margin: 25px 0px 10px; }
.precision input { width: 100%; accent-color: var(--calc-accent); }
.precision output { margin-left: auto; }
#status { font-size: 12px; color: var(--calc-muted); min-height: 30px; line-height: 1.5; }
#inspector footer { font-size: 10px; color: var(--muted); text-align: center; padding: 18px 0px; }
@media (max-width: 1100px) {
  .calculator-main { grid-template-columns: 310px minmax(0px, 1fr); }
  .calculator-header { gap: 15px; }
  .view-tools { gap: 6px; }
  .view-tools button { font-size: 11px; padding: 7px; }
}
@media (max-width: 640px) {
  .calculator-header { height: auto; min-height: 112px; padding: 12px; flex-wrap: wrap; gap: 10px; }
  .brand { font-size: 22px; }
  .identity { margin-left: auto; }
  .workspace-nav { width: 100%; margin: 0px; }
  .workspace-nav button { flex: 1 1 0%; min-height: 40px; }
  .calculator-main { height: auto; display: flex; flex-direction: column; }
  #stage { height: 52dvh; min-height: 300px; order: 0; }
  #inspector { order: 1; border-right: 0px; border-top: 1px solid var(--line); overflow: visible; padding: 16px; }
  .view-tools { top: 8px; left: 8px; right: 8px; gap: 5px; }
  .view-tools button { min-height: 36px; padding: 6px; font-size: 10px; }
  #graph-status { font-size: 10px; left: 12px; bottom: 2px; }
  .precision input { flex: 1 1 0%; min-width: 80px; width: auto; }
  math-field { font-size: 25px; }
}
[hidden] { display: none !important; }
@media (max-width: 640px) {
  .workspace-nav { display: grid; grid-template-columns: repeat(3, minmax(0px, 1fr)); gap: 5px; }
  .workspace-nav button { min-width: 0px; padding: 8px; }
}
#calculator { --sfi-global-action-top: 84px; --sfi-global-action-height: 40px; --sfi-global-action-right: 18px; }
#experience-controls { position: absolute; right: 18px; top: 88px; z-index: 42; }
.view-tools { top: 66px; }
#calculator .sfi-world-guide-dock { top: 136px; max-height: calc(100dvh - 150px); overflow: auto; }
.math-host:has(math-field:not([read-only])) { border: 1px solid var(--calc-border); border-radius: 9px; background: var(--calc-input); box-shadow: rgba(0, 0, 0, 0.333) 0px 1px 8px inset; padding: 3px 8px; }
.equation-hint { font-size: 11px; color: var(--muted); margin: 0px 0px 14px; line-height: 1.6; }
#ambiguities { display: flex; gap: 8px; flex-wrap: wrap; }
#ambiguities:empty { display: none; }
#ambiguities button { max-width: 100%; }
#ambiguities math-field { pointer-events: none; font-size: 21px; min-height: 40px; }
@media (max-width: 640px) {
  #experience-controls { position: relative; top: auto; right: auto; padding: 8px 12px; background: var(--calc-input); }
  #calculator .sfi-world-guide-dock { position: fixed; top: 210px; right: 8px; max-height: calc(100dvh - 225px); }
  .view-tools { top: 8px; }
}
.parameter { display: grid; grid-template-columns: 20px minmax(0px, 1fr) 46px 36px; gap: 8px; align-items: center; padding: 10px 0px; font-size: 13px; }
.parameter input { width: 100%; accent-color: var(--calc-accent); }
.parameter button { padding: 4px; min-height: 32px; }
.parameter output { text-align: right; font-variant-numeric: tabular-nums; }
.advanced-create { margin-top: 20px; font-size: 12px; color: var(--muted); }
.advanced-create summary { cursor: pointer; margin-bottom: 10px; }
.advanced-create label { display: inline-flex; gap: 6px; align-items: center; margin: 5px; }
.advanced-create input { width: 52px; background: transparent; color: inherit; border: 1px solid var(--line); padding: 6px; border-radius: 6px; }
.advanced-create button { width: 100%; margin-top: 8px; }
.operation-options { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 8px 0px; font-size: 11px; color: var(--muted); }
.operation-options select { background: var(--calc-input); color: inherit; border: 1px solid var(--line); border-radius: 6px; padding: 5px; }
.operation-options input { max-width: 130px; accent-color: var(--calc-accent); }
#fractal-canvas { position: absolute; inset: 0px; width: 100%; height: 100%; touch-action: none; }
#fractal-controls { display: grid; gap: 10px; font-size: 12px; }
#fractal-controls label { display: flex; align-items: center; gap: 8px; }
#fractal-controls input, #fractal-controls select { min-width: 0px; max-width: 140px; color: inherit; background: var(--calc-input); border: 1px solid var(--line); padding: 6px; border-radius: 6px; }
#fractal-canvas { z-index: 1; }
.view-tools, #graph-status { z-index: 2; }
.templates { display: grid; grid-template-columns: repeat(3, minmax(0px, 1fr)); }
.templates button { min-width: 0px; padding: 7px; }
#calculator .sfi-world-guide-launcher { font-size: 10px; }
.value-table { width: 100%; border-collapse: collapse; margin: 14px 0px; font-size: 12px; font-variant-numeric: tabular-nums; }
.value-table td, .value-table th { padding: 6px 12px; text-align: right; border-bottom: 1px solid var(--line); }
.value-table th { color: var(--muted); font-weight: 400; }
.initial-conditions { width: 100%; padding: 8px 0px; }
.initial-conditions label { display: flex; align-items: center; gap: 8px; margin: 8px 0px; }
.initial-conditions input[type="number"] { width: 90px; }
.operation-options input[type="number"] { color: inherit; background: var(--calc-input); border: 1px solid var(--line); border-radius: 6px; padding: 5px; width: 90px; }
.selection-tools { display: flex; gap: 6px; flex-wrap: wrap; padding: 10px 0px; border-bottom: 1px solid var(--line); }
.selection-tools > span { width: 100%; font-size: 11px; color: var(--muted); }
.selection-tools button { font-size: 11px; padding: 6px; }
.calculator-main { grid-template-columns: 340px minmax(0px, 1fr); }
#inspector { padding: 16px 12px; background: var(--calc-input); }
.document-heading { padding-bottom: 12px; }
.equation-hint { font-size: 11px; opacity: 0.7; }
#objects article { position: relative; padding: 10px 0px; }
.object-heading { margin: 0px; min-height: 28px; }
.object-heading > span { font-size: 10px; letter-spacing: 0.08em; }
.graph-visibility { font-size: 23px; min-width: 32px; color: var(--calc-muted) !important; padding: 0px 6px !important; }
.math-host:has(math-field:not([read-only])) { border: 0px; border-radius: 0px; background: none; box-shadow: none; padding: 0px; }
.math-host { position: relative; overflow: hidden; min-height: 54px; padding-right: 27px; }
math-field { min-height: 54px; padding: 4px 0px; background: none; border-radius: 0px; }
math-field::part(virtual-keyboard-toggle) { display: none; }
math-field::part(content) { scrollbar-width: none; mask-image: linear-gradient(to right, rgb(0, 0, 0) 94%, transparent); }
math-field::part(content)::-webkit-scrollbar { display: none; }
.math-host[data-empty="true"]::before { content: "Enter an expression"; position: absolute; left: 4px; top: 18px; color: var(--calc-muted); font: 15px system-ui; pointer-events: none; }
.equation-keyboard { position: absolute; right: 0px; top: 13px; opacity: 0.45; font-size: 17px; min-height: 26px !important; padding: 2px !important; border: 0px !important; background: none !important; }
.equation-keyboard:hover, .equation-keyboard:focus-visible { opacity: 1; background: none !important; }
.expression-menu { position: static; }
.expression-menu > summary { list-style: none; cursor: pointer; padding: 6px 9px; font-size: 15px; color: var(--calc-muted); }
.expression-menu > summary::-webkit-details-marker { display: none; }
.expression-menu[open] { padding-bottom: 6px; }
.expression-menu[open] ~ * { position: relative; }
.expression-menu .operation-options, .expression-menu .actions, .expression-menu .result-note, .expression-menu > button { position: relative; }
.object-heading:has(.expression-menu[open]) { flex-wrap: wrap; }
.expression-menu[open] { width: 100%; order: 3; }
.expression-menu[open] > summary { text-align: right; border-bottom: 1px solid var(--line); }
.expression-menu .actions { display: grid; grid-template-columns: repeat(3, minmax(0px, 1fr)); }
.operation-options input[aria-label="Variable for operations"] { width: 36px; text-align: center; color: inherit; background: none; border-top: 0px; border-right: 0px; border-left: 0px; border-image: none; border-bottom: 1px solid var(--line); }
.result-note:empty, .object-error:empty { display: none; }
.file-menu { position: relative; }
.file-menu > summary, .insert-menu > summary, .settings-menu > summary { cursor: pointer; padding: 10px; list-style: none; color: var(--calc-muted); border-radius: 8px; }
.file-menu > summary { border: 1px solid var(--line); }
.file-menu > div { position: absolute; right: 0px; top: 44px; z-index: 70; width: 230px; padding: 8px; background: var(--calc-input); border: 1px solid var(--line); border-radius: 12px; box-shadow: rgba(0, 0, 0, 0.533) 0px 12px 32px; display: grid; gap: 4px; }
.file-menu button { text-align: left; }
.insert-menu { border-top: 1px solid var(--line); margin-top: 6px; }
.settings-menu { margin-top: 8px; font-size: 12px; }
.menu-hint { font-size: 11px; color: var(--muted); padding: 0px 8px; }
.precision { margin: 8px; }
.add { border-style: dashed; background: none; font-size: 13px; margin: 8px 0px; }
.templates button { font-size: 11px; }
.advanced-create { margin: 12px 0px; }
#slider-add { display: flex; gap: 8px; margin: 10px 0px; }
#slider-name { width: 40px; background: none; border-top: 0px; border-right: 0px; border-left: 0px; border-image: none; border-bottom: 1px solid var(--line); text-align: center; color: inherit; }
#slider-add button, .slider-suggestions button { font-size: 12px; padding: 6px 10px; min-height: 32px; }
.slider-suggestions { display: flex; flex-wrap: wrap; gap: 5px; }
.view-tools { gap: 8px; }
.view-tools > div { background: none; border: 1px solid var(--line); border-radius: 999px; padding: 3px; gap: 1px; backdrop-filter: blur(14px); }
.view-tools > div button { border: 0px; background: none; border-radius: 999px; min-height: 32px; padding: 6px 12px; }
.view-tools > div button[aria-pressed="true"] { background: var(--calc-selected); }
.view-tools > button { border-radius: 999px; }
#calculator { --keyboard-background: var(--calc-input); --keyboard-toolbar-background: var(--calc-input); --keyboard-toolbar-text: var(--calc-muted); --keyboard-toolbar-text-active: var(--calc-text); --keycap-background: var(--calc-input); --keycap-background-hover: var(--calc-input); --keycap-background-active: var(--calc-selected); --keycap-text: var(--calc-text); --keycap-border: 1px solid var(--calc-border); --keycap-border-bottom: 1px solid var(--calc-border); --keycap-secondary-background: var(--calc-input); --keycap-secondary-text: var(--calc-muted); --keyboard-accent-color: var(--calc-muted); --keycap-gap: 5px; --keyboard-padding-top: 12px; --keyboard-padding-bottom: 12px; }
@media (max-width: 1100px) {
  .calculator-main { grid-template-columns: 300px minmax(0px, 1fr); }
}
@media (max-width: 640px) {
  .workspace-nav { display: flex; width: auto; margin-left: auto; }
  .workspace-nav button { flex: initial; }
  .file-menu > div { right: 0px; }
  .calculator-main { display: flex; }
  .calculator-header { min-height: 100px; }
  .identity { display: none; }
  #inspector { padding: 12px; }
  .view-tools > div button { padding: 6px 9px; }
  .view-tools { top: 8px; }
}
#calculator { --sfi-panel-bg: linear-gradient(112deg,var(--calc-muted) 0%,var(--calc-muted) 54%,var(--calc-muted) 100%); --sfi-panel-backdrop: blur(20px) saturate(115%); --sfi-panel-border: var(--calc-border); --sfi-panel-shadow: 0 24px 80px rgba(0,0,0,.46),14px 0 48px rgba(0,0,0,.1),inset 0 1px var(--calc-border); }
#calculator .sfi-world-guide-surface { }
#calculator .sfi-adam-ai-activity-field { opacity: 0.18; }
#objects article { padding: 10px; margin: 10px 0px; border: 1px solid var(--calc-border); border-radius: 12px; background: linear-gradient(145deg,var(--calc-panel),var(--calc-panel)); }
#objects article:focus-within { border-color: var(--calc-border); box-shadow: 0 0 0 1px var(--calc-border); }
.parameter-section { margin: 16px 0px 8px; padding: 10px; border: 1px solid var(--calc-border); border-radius: 12px; background: var(--calc-panel); }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 6px; }
.section-heading > span { font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--calc-muted); }
.section-heading #slider-add { margin: 0px; gap: 4px; }
.section-heading #slider-name { width: 28px; font-size: 12px; }
.section-heading #slider-add button { font-size: 10px; min-height: 28px; padding: 4px 7px; }
.parameter-card { padding: 4px 0px 8px; border-top: 1px solid var(--calc-border); }
.parameter { padding: 8px 0px; grid-template-columns: 20px minmax(0px, 1fr) 42px 30px; gap: 6px; }
.parameter-symbol { font: italic 20px Georgia, serif; color: var(--calc-text); }
.parameter-settings > summary { cursor: pointer; font-size: 10px; color: var(--calc-muted); padding: 3px 0px; list-style: none; }
.parameter-settings > summary::after { content: "⌄"; float: right; }
.parameter-settings[open] > summary { margin-bottom: 9px; }
.parameter-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.parameter-fields label { display: grid; gap: 5px; color: var(--calc-muted); font-size: 10px; }
.parameter-fields label:last-child { grid-column: 1 / -1; grid-template-columns: 1fr 74px; align-items: center; }
.parameter-fields input { width: 100%; min-width: 0px; color: var(--calc-text); font-size: 12px; background: var(--calc-input); border: 1px solid var(--calc-border); border-radius: 7px; padding: 7px 8px; }
.parameter-modes { display: grid; grid-template-columns: repeat(3, minmax(0px, 1fr)); gap: 3px; background: var(--calc-input); border-radius: 8px; padding: 3px; margin-top: 10px; }
.parameter-modes button { font-size: 10px; min-height: 30px; padding: 4px 2px; border: 0px; border-radius: 6px; }
.parameter-motion-note { font-size: 10px; line-height: 1.5; color: var(--calc-muted); margin: 8px 0px 0px; padding: 7px; border-radius: 6px; background: var(--calc-hover); }
.editor-help { margin-bottom: 12px; padding: 8px 10px; border: 1px solid var(--calc-border); border-radius: 8px; font-size: 11px; color: var(--calc-muted); }
.editor-help summary { cursor: pointer; list-style: none; }
.editor-help .equation-hint { margin: 8px 0px 0px; }
.insert-menu, .settings-menu { padding: 4px; border: 1px solid var(--calc-border); border-radius: 10px; background: var(--calc-input); }
.document-heading { padding: 8px 5px 12px; }
#inspector footer { border-top: 1px solid var(--calc-border); margin-top: 12px; padding: 12px 0px; }
.math-host { padding-right: 0px; }
.object-heading .equation-keyboard { position: static; display: grid; place-items: center; width: 36px; min-width: 36px; font-size: 25px; line-height: 1; opacity: 0.85; color: var(--calc-text); min-height: 32px !important; padding: 3px !important; }
.object-heading .equation-keyboard:hover, .object-heading .equation-keyboard:focus-visible { opacity: 1; color: var(--calc-text); }
math-field, math-field:focus, math-field:focus-visible { outline: none; border-radius: 8px; box-shadow: none; }
#objects article:focus-within { border-color: var(--calc-border-strong); box-shadow: 0 0 0 2px var(--calc-border); background: linear-gradient(145deg,var(--calc-panel),var(--calc-panel)); }
#inspector input:focus-visible, #inspector button:focus-visible, #inspector summary:focus-visible { outline: 1px solid var(--calc-border-strong); outline-offset: 2px; border-radius: 8px; }
.parameter { grid-template-columns: 1fr auto 30px; row-gap: 7px; }
.parameter-symbol { grid-area: 1 / 1; }
.parameter output { grid-area: 1 / 2; }
.parameter button { grid-area: 1 / 3; }
.parameter input[type="range"] { grid-area: 2 / 1 / auto / -1; width: 100%; margin: 0px; height: 18px; padding: 0px; }
#fractal-controls { grid-template-columns: repeat(2, minmax(0px, 1fr)); gap: 12px; padding: 12px; margin: 8px 0px; border: 1px solid var(--line); border-radius: 12px; background: var(--calc-panel); }
#fractal-controls label { display: grid; grid-template-columns: 1fr; gap: 7px; min-width: 0px; color: var(--calc-muted); font-size: 11px; }
#fractal-controls label:nth-child(-n+2) { grid-column: 1 / -1; }
#fractal-controls label:nth-child(2) { grid-template-columns: 1fr auto; }
#fractal-controls label:nth-child(2) input { grid-area: 2 / 1 / auto / -1; }
#fractal-controls input { width: 100%; max-width: none; min-height: 34px; }
#fractal-controls input[type="range"] { padding: 0px; margin: 0px; min-height: 20px; accent-color: var(--calc-accent); }
#fractal-controls output { font-variant-numeric: tabular-nums; color: var(--calc-text); }
.templates { display: grid; grid-template-columns: repeat(3, minmax(0px, 1fr)); gap: 6px; }
@media (max-width: 640px) {
  body#calculator.sfi-app-shell { height: auto; min-height: 100dvh; overflow: visible; }
}
.calculator-header, .calculator-main { font-size: 14px; }
#inspector .graph-visibility { font-size: 23px; }
#inspector .add { font-size: 13px; }
#fractal-controls { display: grid; grid-template-columns: minmax(0px, 1fr); gap: 12px; padding: 12px; margin: 12px 0px; background: linear-gradient(145deg,var(--calc-panel),var(--calc-panel)); }
#fractal-controls .section-heading { margin: 0px; align-items: center; }
#fractal-controls .section-heading > span { font-size: 10px; line-height: 1.4; }
#fractal-controls .section-heading button { font-size: 10px; padding: 5px 8px; min-height: 30px; border-radius: 999px; }
#fractal-controls label { grid-column: auto; }
#fractal-controls .fractal-iterations { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
#fractal-controls .fractal-iterations input { grid-area: 2 / 1 / auto / -1; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0px, 1fr)); gap: 10px; }
.field-grid label { display: grid; gap: 6px; min-width: 0px; color: var(--calc-muted); font-size: 11px; }
.field-grid input { width: 100%; min-width: 0px; color: var(--calc-text); background: var(--calc-input); border: 1px solid var(--line); border-radius: 8px; padding: 8px; font-size: 12px; }
.field-grid .full-width { grid-column: 1 / -1; }
#fractal-controls .field-grid label { grid-column: auto; grid-template-columns: 1fr; }
#fractal-controls .field-grid .full-width { grid-column: 1 / -1; grid-template-columns: minmax(0px, 1fr) minmax(0px, 1fr); align-items: center; }
#fractal-controls .field-grid input { grid-area: auto; }
.fractal-view { border-top: 1px solid var(--calc-border); padding-top: 10px; }
.fractal-view > summary, .advanced-create > summary { list-style: none; cursor: pointer; color: var(--calc-muted); font-size: 11px; padding: 4px 0px; }
.fractal-view > summary::after, .advanced-create > summary::after { content: "⌄"; float: right; }
.fractal-view[open] > summary, .advanced-create[open] > summary { margin-bottom: 10px; }
#fractal-reset, #harmonic-create { width: 100%; margin-top: 10px; font-size: 11px; min-height: 34px; }
.advanced-create { padding: 10px; border: 1px solid var(--calc-border); border-radius: 10px; background: var(--calc-input); margin: 10px 0px; }
.expression-menu .operation-options { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 10px 0px; border-bottom: 1px solid var(--calc-border); }
.expression-menu .operation-options label { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--calc-muted); }
.expression-menu .operation-options input { border: 1px solid var(--line); background: var(--calc-input); border-radius: 7px; min-height: 30px; }
.expression-menu .actions { gap: 6px; margin: 10px 0px; }
.expression-menu .actions button { min-height: 34px; line-height: 1.25; padding: 6px 4px; border: 1px solid var(--calc-border); border-radius: 8px; }
.expression-menu > button { width: 100%; color: var(--calc-muted); font-size: 11px; min-height: 32px; background: var(--calc-error); }
.object-error[data-kind="view"] { color: var(--calc-muted); font-size: 10px; padding: 6px 8px; border: 1px solid var(--calc-border); border-radius: 7px; background: var(--calc-hover); }
#calculator { --calculator-panel-width: 476px; --sfi-global-action-top: 14px; --sfi-global-action-height: 36px; --sfi-global-action-right: 16px; }
.calculator-header { height: 70px; gap: 16px; padding: 10px 16px; position: relative; z-index: 45; background: var(--calc-panel); }
.calculator-header .identity { display: none; }
.calculator-header .brand { margin-right: auto; }
#experience-controls { position: static; inset: auto; display: flex; padding: 0px; background: none; }
.workspace-nav { margin-left: 0px; }
.workspace-nav > button { width: 36px; padding: 6px; min-height: 36px; }
.file-menu > summary { display: flex; gap: 7px; align-items: center; min-height: 36px; padding: 7px 10px; }
.file-menu > div { width: 252px; }
.file-menu button { display: flex; gap: 12px; align-items: center; padding: 10px; text-align: left; font-size: 12px; }
.file-menu button > span:first-child { font-size: 21px; width: 23px; text-align: center; color: var(--calc-muted); }
.file-menu small { display: block; font-size: 10px; color: var(--calc-muted); margin-top: 3px; }
.calculator-main { height: calc(100dvh - 70px); grid-template-columns: var(--calculator-panel-width) minmax(0,1fr); }
#stage { grid-column: 2; }
#inspector { position: relative; z-index: 4; background: linear-gradient(125deg,var(--calc-panel),var(--calc-panel)); backdrop-filter: blur(24px) saturate(115%); box-shadow: rgba(0, 0, 0, 0.2) 12px 0px 36px; }
.view-tools { top: 14px; left: 18px; right: 16px; gap: 7px; align-items: center; }
#graph-status { left: 20px; }
#calculator .sfi-world-guide-dock { top: 76px; max-height: calc(100dvh - 90px); }
#panel-resizer { position: absolute; z-index: 8; top: 0px; bottom: 0px; left: calc(var(--calculator-panel-width) - 5px); width: 10px; cursor: col-resize; touch-action: none; display: grid; place-items: center; outline: none; }
#panel-resizer span { height: 52px; width: 4px; border-radius: 4px; background: var(--calc-selected); box-shadow: 0 0 0 3px var(--calc-shadow); }
#panel-resizer:hover span, #panel-resizer:focus-visible span, .resizing-panel #panel-resizer span { background: var(--calc-selected); box-shadow: 0 0 12px var(--calc-border); }
.resizing-panel { cursor: col-resize; user-select: none; }
.resizing-panel iframe { pointer-events: none; }
.parameter-settings > summary { display: flex; align-items: center; justify-content: space-between; padding: 7px 9px; border: 1px solid var(--calc-border); border-radius: 8px; background: var(--calc-hover); transition: background 0.15s, border-color 0.15s; }
.parameter-settings > summary:hover { background: var(--calc-hover); border-color: var(--calc-border); }
.parameter-settings > summary::after { float: none; display: inline-block; transition: transform 0.15s; }
.parameter-settings[open] > summary { background: var(--calc-hover); border-color: var(--calc-border); }
.parameter-settings[open] > summary::after, .fractal-view[open] > summary::after, .advanced-create[open] > summary::after { transform: rotate(180deg); }
.object-heading:has(.expression-menu[open]) { flex-wrap: nowrap; }
.expression-menu[open] { width: auto; order: initial; padding: 0px; }
.expression-menu[open] > summary { border: 0px; text-align: center; background: var(--calc-hover); border-radius: 8px; }
.expression-menu-content { position: absolute; z-index: 30; top: 48px; right: 10px; left: 10px; padding: 10px; background: linear-gradient(130deg,var(--calc-panel),var(--calc-panel)); border: 1px solid var(--calc-border); border-radius: 12px; box-shadow: rgba(0, 0, 0, 0.6) 0px 14px 40px; backdrop-filter: blur(20px); }
.expression-menu-content > button { width: 100%; font-size: 11px; border: 1px solid var(--calc-border); color: var(--calc-muted); }
math-field { --selection-color: var(--calc-text); --selection-background-color: var(--calc-selected); --contains-highlight-color: var(--calc-text); --contains-highlight-background-color: var(--calc-hover); }
.selection-tools { padding: 9px; margin-top: 8px; border: 1px solid var(--calc-border); border-radius: 10px; background: var(--calc-hover); gap: 5px; }
.selection-tools > span { font-size: 10px; letter-spacing: 0.04em; }
@media (max-width: 1100px) and (min-width: 701px) {
  #calculator { --calculator-panel-width: 300px; }
  .view-tools > div button { padding: 6px 8px; font-size: 11px; }
}
@media (max-width: 700px) {
  .calculator-header { height: auto; min-height: 100px; flex-wrap: wrap; gap: 8px; padding: 10px 12px; }
  .calculator-header .brand { font-size: 21px; }
  .workspace-nav { margin-left: auto; }
  #experience-controls { order: 3; width: 100%; justify-content: flex-end; }
  .calculator-main { height: auto; display: flex; }
  #stage { height: 52dvh; min-height: 300px; }
  #inspector { width: 100%; backdrop-filter: blur(24px); box-shadow: none; }
  #panel-resizer { display: none; }
  .view-tools { top: 10px; left: 10px; right: 10px; gap: 5px; }
  .view-tools > div button { padding: 6px 7px; font-size: 10px; }
  #graph-status { left: 12px; }
  #calculator .sfi-world-guide-dock { top: 144px; right: 8px; max-height: calc(100dvh - 155px); }
  body#calculator.sfi-app-shell { height: auto; overflow: visible; }
}
@media (prefers-reduced-motion: reduce) {
  .parameter-settings > summary, .parameter-settings > summary::after { transition: none; }
}
.view-tools > div { align-items: center; flex-wrap: wrap; }
.view-tools .control-group-label { font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--calc-muted); padding: 0px 6px 0px 10px; white-space: nowrap; }
.view-tools > div[aria-label="Material for surfaces and tubes"] { border: 1px solid var(--calc-border); }
#inspector .graph-visibility { font-size: 11px; min-width: 44px; border: 1px solid var(--line); border-radius: 8px; padding: 5px 8px !important; color: var(--calc-muted) !important; }
#inspector .graph-visibility[aria-checked="true"] { background: var(--calc-hover); color: var(--calc-text) !important; }
.templates { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.templates button { display: flex; flex-direction: column; align-items: flex-start; text-align: left; gap: 6px; min-width: 0px; padding: 10px; }
.templates strong { font-size: 11px; font-weight: 500; }
.templates small { font-size: 10px; line-height: 1.5; color: var(--muted); overflow-wrap: anywhere; }
.notation-help, .cloud-controls p { font-size: 11px; line-height: 1.5; color: var(--muted); }
.cloud-controls { border-top: 1px solid var(--line); padding-top: 9px; margin-top: 6px; }
.cloud-controls summary { font-size: 11px; cursor: pointer; padding: 6px 0px; }
.cloud-controls .field-grid { margin-top: 8px; }
.cloud-controls input { min-width: 0px; width: 100%; }
#inspector { scrollbar-width: none; }
#inspector::-webkit-scrollbar { display: none; width: 0px; height: 0px; }
#inspector input[type="number"] { appearance: textfield; }
#inspector input[type="number"]::-webkit-inner-spin-button, #inspector input[type="number"]::-webkit-outer-spin-button { appearance: none; margin: 0px; }
#inspector { display: flex; flex-direction: column; padding: 0px; overflow: hidden; min-height: 0px; }
.inspector-scroll { flex: 1 1 0%; min-height: 0px; overflow: auto; padding: 20px 14px 10px; scrollbar-width: none; }
.inspector-scroll::-webkit-scrollbar, .example-drawer-content::-webkit-scrollbar { display: none; width: 0px; height: 0px; }
#inspector > .insert-menu { flex: 0 0 auto; margin: 0px; border-right: 0px; border-bottom: 0px; border-left: 0px; border-image: none; border-top: 1px solid var(--line); border-radius: 0px; padding: 0px; background: var(--calc-panel); box-shadow: rgba(0, 0, 0, 0.133) 0px -8px 24px; }
.insert-menu > summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; list-style: none; padding: 14px 18px; cursor: pointer; }
.insert-menu > summary::-webkit-details-marker { display: none; }
.insert-menu > summary > span:first-child { display: flex; flex-direction: column; gap: 4px; }
.insert-menu > summary strong { font-size: 12px; font-weight: 500; color: var(--calc-text); }
.insert-menu > summary small { font-size: 10px; color: var(--muted); }
.drawer-toggle { width: 24px; height: 24px; border: 1px solid var(--line); border-radius: 7px; position: relative; }
.drawer-toggle::before, .drawer-toggle::after { content: ""; position: absolute; left: 6px; right: 6px; top: 11px; height: 1px; background: var(--calc-selected); }
.drawer-toggle::after { transform: rotate(90deg); }
.insert-menu[open] .drawer-toggle::after { display: none; }
.example-drawer-content { max-height: 43dvh; overflow: auto; scrollbar-width: none; padding: 0px 14px 14px; }
.insert-menu .menu-hint { margin: 0px 0px 12px; font-size: 11px; line-height: 1.5; }
.parameter-fields input { appearance: none; border-radius: 8px; }
@media (max-width: 700px) {
  #inspector { display: flex; overflow: visible; }
  .inspector-scroll { overflow: visible; flex: 0 0 auto; padding: 14px 12px; }
  .example-drawer-content { max-height: 55dvh; }
  #inspector > .insert-menu { position: relative; }
}
#inspector .parameter-value { width: 68px; min-width: 0px; background: var(--calc-input); border: 1px solid var(--line); border-radius: 8px; color: var(--calc-text); padding: 6px 9px; text-align: right; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; line-height: inherit; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 12px; }
.numeric-drag { cursor: ns-resize; touch-action: none; }
.numeric-drag:focus { cursor: text; }
.numeric-drag.is-dragging { user-select: none; cursor: ns-resize !important; border-color: var(--calc-border-strong) !important; background: var(--calc-input) !important; }
.numeric-drag-hint { font-size: 10px; color: var(--muted); margin: 7px 0px 10px; line-height: 1.4; }
.view-tools [data-appearance]:disabled { opacity: 0.35; cursor: default; }
.parameter .parameter-value { grid-area: 1 / 2; }
#inspector .graph-visibility { display: inline-flex; align-items: center; gap: 5px; font-size: 10px; min-width: 50px; justify-content: center; }
#inspector .graph-visibility[aria-checked="true"] { border-color: var(--calc-border); }
#inspector .graph-visibility[aria-checked="false"] { background: transparent; color: var(--calc-muted) !important; }
.view-tools > .view-menu { position: relative; pointer-events: auto; font-size: 11px; }
.view-menu > summary { cursor: pointer; list-style: none; padding: 10px 12px; border: 1px solid var(--line); border-radius: 18px; background: var(--calc-panel); white-space: nowrap; }
.view-menu > summary::-webkit-details-marker { display: none; }
.view-menu[open] > summary { background: var(--calc-input); }
.view-menu-panel { position: absolute; right: 0px; top: calc(100% + 8px); width: 250px; max-width: calc(-30px + 100vw); padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--calc-panel); backdrop-filter: blur(20px); box-shadow: rgba(0, 0, 0, 0.533) 0px 12px 30px; z-index: 12; }
.view-menu-panel p { font-size: 10px; line-height: 1.5; color: var(--muted); margin: 10px 0px 0px; }
#hdr-options { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
#hdr-options button { border-radius: 8px; white-space: normal; }
.axis-control { display: grid; grid-template-columns: 20px 1fr 20px; align-items: center; gap: 8px; margin: 3px 0px 12px; }
.axis-control input[type="text"] { width: 100%; min-width: 0px; padding: 7px; color: var(--calc-text); background: var(--calc-input); border: 1px solid var(--line); border-radius: 8px; text-align: right; }
.axis-control input[type="range"] { grid-column: 1 / -1; width: 100%; margin: 0px; accent-color: var(--calc-accent); }
#axis-reset { width: 100%; margin-top: 10px; }
.view-tools { z-index: 6; }
@media (max-width: 700px) {
  .view-menu > summary { padding: 8px 10px; }
  .view-menu-panel { position: fixed; top: auto; right: 12px; max-height: 55dvh; overflow: auto; }
}
.grid-layout-options { display: grid; grid-template-columns: repeat(2, minmax(0px, 1fr)); gap: 8px; }
.grid-layout-options button { display: flex; align-items: center; gap: 9px; text-align: left; min-height: 52px; padding: 10px; border-radius: 12px; }
.grid-layout-options svg { width: 28px; height: 30px; flex: 0 0 auto; fill: none; stroke: currentcolor; stroke-width: 1; stroke-linejoin: round; }
.grid-subdivision-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 14px; margin-top: 14px; border-top: 1px solid var(--calc-border); }
.grid-subdivision-row small { display: block; font-size: 11px; color: var(--calc-muted); margin-top: 4px; line-height: 1.4; }
.grid-subdivision-row button { min-width: 48px; border-radius: 20px; }
.grid-subdivision-row button[aria-checked="true"] { background: var(--calc-selected); border-color: var(--calc-border); color: var(--calc-text); }
.grid-material-options { display: grid; grid-template-columns: repeat(3, minmax(0px, 1fr)); gap: 4px; margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--calc-border); }
.grid-material-options button { padding: 8px 3px; font-size: 10px; border-radius: 8px; }
@media (min-width: 701px) {
  #stage { grid-column: 1 / -1; }
  .view-tools { left: calc(var(--calculator-panel-width) + 18px); }
  #graph-status { left: calc(var(--calculator-panel-width) + 20px); }
}
#inspector { background: linear-gradient(135deg,var(--calc-panel),var(--calc-panel)); backdrop-filter: blur(28px) saturate(120%); border-right-color: var(--calc-border); box-shadow: inset -1px 0 var(--calc-border),12px 0 36px #0003; }
#inspector > .insert-menu { background: var(--calc-panel); }
.grid-section-heading { display: flex; align-items: center; justify-content: space-between; color: var(--calc-muted); font-size: 10px; margin: 8px 0px; }
.grid-section-heading button { min-height: 25px; padding: 3px 10px; border-radius: 20px; font-size: 10px; }
.grid-surface-options { display: grid; grid-template-columns: repeat(4, minmax(0px, 1fr)); gap: 4px; padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.grid-surface-options button { font-size: 10px; padding: 8px 3px; border-radius: 8px; }
.grid-section-heading button[aria-checked="true"] { background: var(--calc-selected); border-color: var(--calc-border); }
.view-menu-panel { max-height: min(620px, 75dvh); overflow-y: auto; scrollbar-width: none; }
@media (max-width: 700px) {
  .view-menu-panel { left: 12px; right: 12px; bottom: 12px; width: auto; max-width: none; max-height: calc(100dvh - 140px); border-radius: 16px; }
}
.curve-domain { margin: 10px 0px 0px; border: 1px solid var(--calc-border); border-radius: 10px; background: var(--calc-hover); }
.curve-domain[hidden] { display: none; }
.curve-domain > summary { display: flex; align-items: center; justify-content: space-between; cursor: pointer; list-style: none; padding: 9px 11px; font-size: 12px; color: var(--calc-text); font-variant-numeric: tabular-nums; }
.curve-domain > summary::-webkit-details-marker { display: none; }
.curve-domain > summary::after, .view-menu > summary::after { content: ""; display: inline-block; width: 5px; height: 5px; margin-left: 10px; border-right: 1px solid; border-bottom: 1px solid; transform: rotate(45deg); vertical-align: 3px; }
.curve-domain[open] > summary::after, .view-menu[open] > summary::after { transform: rotate(225deg); vertical-align: 0px; }
.curve-domain-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 3px 11px 0px; }
.curve-domain-fields label { display: grid; gap: 6px; font-size: 10px; color: var(--calc-muted); }
.curve-domain-fields input { width: 100%; min-width: 0px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; color: var(--calc-text); background: var(--calc-panel); font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; line-height: inherit; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; font-size: 13px; text-align: right; }
.curve-domain-hint { font-size: 10px; line-height: 1.5; color: var(--muted); margin: 9px 11px 11px; }
.curve-domain .object-error { margin: 8px 11px; }
.view-menu-heading { display: flex; align-items: center; justify-content: space-between; padding: 0px 0px 10px; margin-bottom: 10px; border-bottom: 1px solid var(--line); }
.view-menu-heading strong { font-size: 12px; font-weight: 500; color: var(--calc-text); }
.view-menu-heading button { padding: 4px 10px; min-height: 28px; font-size: 11px; border-radius: 8px; }
.view-menu[open] > summary { border-color: var(--calc-border-strong); box-shadow: 0 0 0 3px var(--calc-border); }
@media (min-width: 701px) {
  .view-menu-panel::before { content: ""; position: absolute; top: -6px; left: calc(var(--menu-anchor,80%) - 5px); width: 10px; height: 10px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); background: var(--calc-input); transform: rotate(45deg); }
}
@media (min-width: 701px) {
  .view-menu-panel::before { display: none; }
  .view-menu[open]::after { content: ""; position: absolute; pointer-events: none; z-index: 13; top: calc(100% + 3px); left: calc(50% - 5px); width: 10px; height: 10px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); background: var(--calc-input); transform: rotate(45deg); }
}
.shortcut-reference { display: grid; gap: 10px; padding: 8px 0px 12px; min-width: 0px; }
.shortcut-reference > input { width: 100%; box-sizing: border-box; border-radius: 10px; padding: 10px 12px; background: var(--calc-panel); border: 1px solid var(--calc-border); color: inherit; }
.shortcut-count { color: var(--calc-muted); font-size: 11px; }
.shortcut-group { border: 1px solid var(--calc-border); border-radius: 12px; margin-bottom: 7px; overflow: hidden; background: var(--calc-panel); }
.shortcut-group > summary { padding: 11px 12px; cursor: pointer; font-size: 12px; color: var(--calc-text); }
.shortcut-grid { display: grid; grid-template-columns: repeat(2, minmax(0px, 1fr)); gap: 5px; padding: 0px 7px 8px; }
.shortcut-item { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 7px; min-height: 76px; min-width: 0px; padding: 10px 5px !important; border-radius: 9px !important; background: var(--calc-hover) !important; }
.shortcut-item:hover { background: var(--calc-selected) !important; }
.shortcut-item:focus-visible { outline: 1px solid var(--calc-border-strong); outline-offset: -2px; }
.shortcut-item[hidden], .shortcut-group[hidden] { display: none; }
.shortcut-notation { display: block; max-width: 100%; overflow: hidden; font-size: 18px; pointer-events: none; }
.shortcut-item kbd { font-size: 11px; max-width: 100%; overflow-wrap: anywhere; white-space: normal; color: var(--calc-muted); }
.shortcut-navigation { display: grid; grid-template-columns: auto 1fr; gap: 12px 10px; padding: 0px 12px 12px; font-size: 11px; align-items: center; }
.shortcut-navigation dt, .shortcut-navigation dd { margin: 0px; }
.shortcut-navigation dd { color: var(--calc-muted); }
.shortcut-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.shortcut-heading strong { font-size: 12px; font-weight: 500; color: var(--calc-text); }
.shortcut-heading button { border-radius: 8px; padding: 5px 11px; min-height: 30px; }
.editor-help > summary, .shortcut-group > summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.editor-help > summary::after, .shortcut-group > summary::after { content: ""; width: 6px; height: 6px; flex: 0 0 auto; border-right: 1px solid; border-bottom: 1px solid; transform: rotate(45deg); margin-right: 3px; }
.editor-help[open] > summary::after, .shortcut-group[open] > summary::after { transform: rotate(225deg); }
.shortcut-item small { font-size: 10px; line-height: 1.35; color: var(--calc-muted); font-weight: 400; text-align: center; }
.shortcut-empty { margin: 0px; padding: 12px; border: 1px solid var(--calc-border); border-radius: 10px; color: var(--calc-muted); line-height: 1.5; }
.shortcut-empty[hidden] { display: none; }
.shortcut-groups { max-height: min(380px, 48dvh); overflow: auto; scrollbar-width: none; overscroll-behavior: contain; }
.shortcut-groups::-webkit-scrollbar { display: none; }
.shortcut-reference .equation-hint { margin: 0px; line-height: 1.5; }
.shortcut-group > summary::-webkit-details-marker, .editor-help > summary::-webkit-details-marker { display: none; }
#objects article { padding: 6px 0px; }
#objects .object-heading { display: flex; align-items: center; gap: 5px; min-height: 44px; }
#objects .object-heading > span:empty { display: none; }
#objects .object-heading > span:not(:empty) { position: absolute; top: 0px; left: 44px; font-size: 9px; }
#objects article:has(math-field[read-only]) { padding-top: 20px; }
#objects .math-host { flex: 1 1 0%; min-width: 0px; min-height: 44px; padding: 0px; }
#objects math-field { min-height: 44px; padding: 3px 0px; font-size: 22px; }
#objects .math-host[data-empty="true"]::before { content: none; }
#inspector .object-heading .graph-visibility { flex: 0 0 auto; display: grid; place-items: center; width: 36px; min-width: 36px; background: none; border: 0px; min-height: 44px !important; padding: 0px !important; }
.graph-visibility::before { content: ""; display: block; width: 16px; height: 16px; border: 2px solid var(--calc-border-strong); border-radius: 50%; background: transparent; }
.graph-visibility[aria-checked="true"]::before { background: var(--calc-selected); border-color: var(--calc-border-strong); }
#objects .expression-menu { flex: 0 0 auto; }
.keyboard-dock { flex: 0 0 auto; padding: 6px 12px; border-top: 1px solid var(--line); background: var(--calc-panel); }
#math-keyboard { display: grid; place-items: center; width: 44px; height: 40px; padding: 6px; }
.editor-help > summary::after { content: none; }
.editor-help > summary { list-style: none; }
.shortcut-group > summary::after { content: none; }
@media (min-width: 701px) and (max-width: 1100px) {
  #calculator { --calculator-panel-width: min(448px,46vw); }
}
.parameter-fields { grid-template-columns: 1fr 1fr 1.4fr; gap: 6px; }
.parameter-fields label, .parameter-fields label:last-child { display: block; position: relative; grid-column: auto; min-width: 0px; }
.parameter-fields label > span { position: absolute; top: 6px; left: 5px; right: 5px; text-align: center; font-size: 9px; color: var(--calc-muted); pointer-events: none; white-space: nowrap; }
#inspector .parameter-fields input { min-height: 48px; padding: 21px 5px 5px; text-align: center; font-size: 13px; }
#calculator { --line: var(--calc-border); --muted: var(--calc-muted); }
#calculator #inspector { background: linear-gradient(135deg,var(--calc-panel),var(--calc-panel)); backdrop-filter: blur(16px); border-right-color: var(--calc-border); }
#calculator #inspector > .insert-menu, #calculator .keyboard-dock { background: var(--calc-panel); }
#calculator #objects article, #calculator .parameter-section, #calculator .settings-menu, #calculator .editor-help { background: var(--calc-hover); border-color: var(--calc-border); }
#calculator #inspector input, #calculator .parameter-fields input, #calculator .parameter-modes { background: var(--calc-input); color: var(--calc-text); border-color: var(--calc-border); }
#calculator #inspector button { color: var(--calc-text); }
#calculator #inspector .parameter-modes button[aria-pressed="true"] { background: var(--calc-selected); border-color: var(--calc-border); }
#calculator .document-heading { display: flex; align-items: center; gap: 12px; padding: 0px 4px 12px; }
#calculator .document-heading label { margin: 0px; flex: 0 0 auto; letter-spacing: 0.04em; }
#calculator #title { min-width: 0px; font-size: 16px; }
#calculator .expression-remove { display: grid; place-items: center; flex: 0 0 auto; width: 22px; height: 22px; border-radius: 50%; font-size: 17px; background: none; min-width: 22px !important; min-height: 22px !important; padding: 0px !important; border: 1px solid var(--calc-border) !important; color: var(--calc-muted) !important; }
#calculator .expression-remove:hover { color: white !important; border-color: var(--calc-border-strong) !important; }
#calculator #undo svg, #calculator #redo svg { width: 18px; height: 18px; fill: none; stroke: currentcolor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
#calculator .workspace-nav .calculator-settings { position: relative; padding: 0px; margin: 0px; background: none; flex: 0 0 auto; }
.calculator-settings > summary { padding: 10px 12px; list-style: none; cursor: pointer; font-size: 12px; }
#calculator .calculator-settings .precision { position: absolute; right: 0px; top: 100%; z-index: 60; min-width: 260px; padding: 16px; margin: 8px 0px; border: 1px solid var(--calc-border); border-radius: 12px; background: var(--calc-input); box-shadow: rgba(0, 0, 0, 0.6) 0px 12px 30px; }
.keyboard-dock { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.calculator-destinations { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; font-size: 10px; }
.calculator-destinations a { color: var(--calc-text); text-decoration: none; }
.calculator-destinations a:hover { color: white; }
#calculator .example-drawer-content { max-height: 37dvh; }
#calculator .shortcut-groups { max-height: none; overflow: visible; }
.shortcut-group h4 { margin: 10px; font-size: 11px; font-weight: 500; }
.shortcut-item strong { font-size: 11px; font-weight: 500; }
.shortcut-item small { display: block; }
.array-builder { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 10px; }
.array-builder > summary { cursor: pointer; font-size: 12px; padding: 6px 0px; }
.array-builder select { width: 100%; margin: 8px 0px; background: var(--calc-input); color: var(--calc-text); border: 1px solid var(--line); border-radius: 6px; padding: 8px; }
.array-row { display: flex; gap: 4px; align-items: center; margin: 5px 0px; overflow: auto; }
.array-row input { width: 54px; min-width: 40px; flex: 1 1 0%; padding: 8px 5px; border: 1px solid var(--line); border-radius: 5px; text-align: center; }
#calculator .array-row button { min-width: 26px; min-height: 32px; padding: 2px 5px; }
.array-sequence { display: grid; grid-template-columns: repeat(3, minmax(0px, 1fr)); gap: 6px; }
.array-sequence label { font-size: 10px; color: var(--calc-muted); }
.array-sequence input { width: 100%; padding: 8px; border: 1px solid var(--line); border-radius: 6px; }
.array-preview { display: block; overflow: auto; margin: 10px 0px; padding: 8px; font-size: 11px; color: var(--calc-text); }
.array-actions { display: flex; gap: 6px; }
.array-note { font-size: 11px; color: var(--calc-text); }
.array-note:empty { display: none; }
#calculator .templates { display: grid; grid-template-columns: repeat(3, minmax(0px, 1fr)); gap: 7px; }
#calculator .templates button { display: flex; flex-direction: column; align-items: stretch; padding: 0px; overflow: hidden; border-radius: 9px; min-width: 0px; text-align: left; }
#calculator .templates button > strong { font-size: 10px; padding: 7px 7px 2px; }
.templates button > small { padding: 0px 7px 7px; font-size: 9px; line-height: 1.35; }
.template-preview { width: 100%; height: 70px; object-fit: cover; background: var(--calc-input); }
.template-notation { height: 70px; display: grid; place-items: center; overflow: hidden; background: var(--calc-input); font-size: 19px; }
.calculator-library { width: min(1000px, -32px + 100vw); max-height: 88dvh; padding: 22px; border: 1px solid var(--calc-border); border-radius: 20px; background: var(--calc-input); color: var(--calc-text); box-shadow: rgba(0, 0, 0, 0.733) 0px 30px 100px; }
.calculator-library::backdrop { background: rgba(0, 0, 0, 0.6); backdrop-filter: blur(7px); }
.calculator-library > header { display: flex; justify-content: space-between; align-items: center; }
.calculator-library h2 { margin: 0px; font-size: 22px; font-weight: 400; }
.calculator-library button { color: inherit; border: 1px solid var(--calc-border); background: var(--calc-hover); border-radius: 8px; padding: 9px 12px; cursor: pointer; }
.catalog-tools { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 20px; }
.library-scope, .library-status { font-size: 12px; color: var(--calc-muted); }
.graph-catalog { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin-top: 16px; }
.graph-card { border: 1px solid var(--calc-border); border-radius: 13px; overflow: hidden; background: var(--calc-hover); }
.calculator-library .graph-card-open { border: 0px; background: none; border-radius: 0px; display: block; width: 100%; padding: 0px; text-align: left; }
.graph-card img, .graph-card-formula { width: 100%; height: 150px; object-fit: cover; background: var(--calc-input); }
.graph-card-formula { display: grid; place-items: center; overflow: hidden; font-size: 22px; }
.graph-card-info { display: flex; flex-direction: column; gap: 7px; padding: 14px; }
.graph-card-info strong { font-size: 14px; font-weight: 500; }
.graph-card-info time { font-size: 11px; color: var(--calc-muted); }
.graph-card-actions { display: flex; gap: 7px; flex-wrap: wrap; padding: 0px 14px 14px; }
.graph-card-actions:empty { display: none; }
.graph-card-actions button { font-size: 11px; }
.catalog-conversation { grid-column: 1 / -1; margin: 0px; display: grid; gap: 8px; padding: 14px; border-bottom: 1px solid var(--calc-border); line-height: 1.5; }
.catalog-conversation strong { font-size: 11px; color: var(--calc-muted); }
.catalog-empty { font-size: 14px; padding: 30px 0px; }
#calculator .sfi-world-guide-dock[data-calculator-placement] { z-index: 45; position: fixed !important; width: 350px !important; max-width: calc(-24px + 100vw) !important; inset: auto !important; transform: none !important; margin: 0px !important; }
#calculator .sfi-world-guide-dock[data-calculator-placement] .sfi-world-guide-surface { overflow: auto; scrollbar-width: none; max-height: calc(100dvh - 100px) !important; }
#calculator .sfi-world-guide-header { cursor: grab; touch-action: none; flex-wrap: wrap; }
.teacher-placement { font: 10px system-ui; color: var(--calc-text); background: var(--calc-panel); border: 1px solid var(--calc-border); border-radius: 5px; padding: 5px; max-width: 130px; }
#calculator .sfi-world-guide-dock[data-calculator-placement="right"] { background: var(--calc-panel); border-left: 1px solid var(--line); right: 0px !important; top: 70px !important; bottom: 0px !important; padding: 12px !important; }
#calculator[data-ai-open="true"][data-ai-placement="right"] .calculator-main { margin-right: 350px; }
#calculator .sfi-world-guide-dock[data-calculator-placement="top-right"] { right: 12px !important; top: 82px !important; }
#calculator .sfi-world-guide-dock[data-calculator-placement="bottom-right"] { right: 12px !important; bottom: 12px !important; }
#calculator .sfi-world-guide-dock[data-calculator-placement="top-left"] { left: 12px !important; top: 82px !important; }
#calculator .sfi-world-guide-dock[data-calculator-placement="bottom-left"] { left: 12px !important; bottom: 12px !important; }
#calculator .sfi-world-guide-dock[data-calculator-placement="equations"] { position: relative !important; inset: auto !important; width: 100% !important; max-width: 100% !important; margin: 10px 0px !important; }
#calculator .sfi-world-guide-dock[data-calculator-placement="equations"] .sfi-world-guide-surface { max-height: 46dvh !important; }
#calculator .sfi-world-guide-dock.teacher-dragging { left: var(--teacher-drag-left) !important; top: var(--teacher-drag-top) !important; bottom: auto !important; right: auto !important; }
#calculator .sfi-world-guide-dock[data-open="false"] { display: none !important; }
@media (max-width: 1100px) {
  #calculator[data-ai-open="true"][data-ai-placement="right"] .calculator-main { margin-right: 310px; }
  #calculator .sfi-world-guide-dock[data-calculator-placement="right"] { width: 310px !important; }
}
@media (max-width: 700px) {
  #calculator .templates { grid-template-columns: repeat(3, minmax(0px, 1fr)); }
  #calculator .example-drawer-content { max-height: 30dvh; }
  #calculator[data-ai-open="true"][data-ai-placement="right"] .calculator-main { margin-right: 0px; }
  #calculator .sfi-world-guide-dock[data-calculator-placement="right"] { top: auto !important; bottom: 0px !important; left: 0px !important; width: 100% !important; max-width: none !important; max-height: 55dvh !important; }
  #calculator .sfi-world-guide-dock[data-calculator-placement="right"] .sfi-world-guide-surface { max-height: 50dvh !important; }
  .calculator-library { padding: 16px; }
  .graph-catalog { grid-template-columns: 1fr; }
  .calculator-destinations { gap: 9px; font-size: 9px; }
  .calculator-settings > summary { padding: 9px 7px; }
}
#calculator .calculator-navigation { position: relative; flex: 0 0 auto; z-index: 65; }
.calculator-navigation > summary { display: grid; place-items: center; list-style: none; cursor: pointer; border: 1px solid var(--calc-border); border-radius: 50%; width: 36px; height: 36px; color: var(--calc-text); }
.calculator-navigation > summary::-webkit-details-marker { display: none; }
#calculator .calculator-destinations { position: absolute; top: calc(100% + 12px); left: 0px; min-width: 210px; display: flex; flex-direction: column; gap: 3px; padding: 8px; background: var(--calc-panel); border: 1px solid var(--calc-border); border-radius: 12px; box-shadow: rgba(0, 0, 0, 0.6) 0px 15px 35px; font-size: 13px; }
.calculator-destinations a { padding: 12px; border-radius: 6px; }
.calculator-destinations a:hover { background: var(--calc-hover); }
#calculator .shortcut-item { display: flex; flex-direction: column; align-items: stretch; gap: 0px; border: 1px solid var(--calc-border); padding: 0px !important; background: var(--calc-hover) !important; }
#calculator .shortcut-insert { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; text-align: left; background: none; border: 0px; flex: 1 1 0%; padding: 12px !important; }
.shortcut-badges { display: flex; flex-wrap: wrap; gap: 4px; }
.shortcut-badges kbd { display: inline-block; border: 1px solid var(--calc-border); border-radius: 5px; padding: 3px 6px; background: var(--calc-input); font: 11px ui-monospace, SFMono-Regular, monospace; color: var(--calc-text); }
.shortcut-insert strong { font-size: 12px; color: var(--calc-text); }
.shortcut-insert small { font-size: 11px; text-align: left; color: var(--calc-muted); line-height: 1.45; }
#calculator .shortcut-ask { font-size: 10px; border-right: 0px; border-bottom: 0px; border-left: 0px; border-image: none; border-top: 1px solid var(--calc-border); background: none; border-radius: 0px; min-height: 30px; padding: 7px; color: var(--calc-text); }
#calculator [data-sfi-account-control="chat"] { display: none !important; }
#calculator .calculator-header { gap: 14px; }
#calculator #experience-controls { margin-left: 0px; order: 5; position: static; }
#calculator .workspace-nav { margin-left: auto; }
#calculator .calculator-navigation { margin: 0px; }
#calculator .file-menu > div, #calculator .calculator-settings-panel, #calculator .expression-menu-content { background: var(--calc-panel); border: 1px solid var(--calc-border); box-shadow: rgba(0, 0, 0, 0.6) 0px 14px 40px; backdrop-filter: blur(12px); color: var(--calc-text); }
#calculator .file-menu > div { width: 240px; padding: 6px; }
#calculator .file-menu > div > button { display: block; width: 100%; padding: 11px 12px; min-height: 40px; border: 0px; background: transparent; text-align: left; font-size: 13px; white-space: nowrap; }
#calculator .file-menu > div > button > span { display: inline; width: auto; white-space: nowrap; }
#calculator .file-menu > div > button:hover { background: var(--calc-hover); }
#calculator .calculator-settings-panel { position: absolute; right: 0px; top: 45px; width: min(320px, 90vw); max-height: 75dvh; overflow: auto; border-radius: 12px; padding: 16px; z-index: 90; }
#calculator .calculator-settings .precision { position: static; width: auto; padding: 0px; margin: 0px 0px 16px; background: none; border: 0px; box-shadow: none; }
.calculator-settings-panel section { border-top: 1px solid var(--calc-border); padding: 12px 0px 0px; margin-top: 12px; display: grid; gap: 8px; }
.calculator-settings-panel h3 { margin: 0px 0px 4px; font-size: 11px; color: var(--calc-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.preference-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 12px; }
.preference-row select { background: var(--calc-input); color: inherit; border: 1px solid var(--calc-border); border-radius: 6px; padding: 6px; }
.preference-row input { accent-color: var(--calc-accent); }
#calculator .calculator-settings-panel section button { text-align: left; font-size: 12px; min-height: 34px; padding: 7px 9px; }
#calculator .expression-remove { line-height: 1; }
.expression-remove svg { width: 12px; height: 12px; display: block; stroke: currentcolor; stroke-width: 1.5; fill: none; stroke-linecap: round; }
#calculator .operation-options { padding: 4px 0px 10px; border-bottom: 1px solid var(--calc-border); color: var(--calc-muted); }
#calculator .operation-options label { font-size: 11px; }
#calculator .expression-menu-content input { background: var(--calc-input); border-color: var(--calc-border); color: var(--calc-text); }
#calculator .expression-menu-content button:hover { border-color: var(--calc-border); background: var(--calc-hover); }
#calculator math-field { font-size: var(--equation-font-size,24px); }
.template-preview, .graph-card img { -webkit-user-drag: none; user-select: none; pointer-events: none; }
#calculator .templates button { user-select: none; }
@media (max-width: 700px) {
  #calculator .calculator-header { gap: 8px; }
  #calculator #experience-controls { margin-left: auto; }
  #calculator .workspace-nav { order: 6; }
}
.vector-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 6px 3px 10px; }
.vector-controls[hidden] { display: none; }
.vector-controls label { display: grid; grid-template-columns: 1fr auto; gap: 5px; font-size: 11px; color: var(--calc-muted); }
.vector-controls input { grid-area: 2 / 1 / auto / -1; width: 100%; accent-color: var(--calc-accent); }
#calculator #experience-controls > .calculator-navigation { order: 1; flex: 0 0 auto; }
#calculator #experience-controls > [data-sfi-account-control="account"] { order: 2; }
#calculator .calculator-navigation > summary { display: flex; align-items: center; justify-content: center; gap: 7px; width: auto; height: 36px; padding: 8px 12px; border-radius: 999px; font-size: 11px; }
#calculator .calculator-navigation .calculator-destinations { left: auto; right: 0px; }
body { --keycap-height: 34px; --keycap-font-size: 17px; --keycap-gap: 3px; --keyboard-toolbar-font-size: 13px; --keyboard-background: var(--calc-input); --keycap-background: var(--calc-input); --keycap-text: var(--calc-text); --keyboard-border: var(--calc-border-strong); }
.ML__keyboard { border-top: 1px solid var(--calc-border-strong) !important; }
.gallery-section { margin: 14px 0px; }
.gallery-section h3 { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--calc-muted); font-weight: 500; margin: 8px 2px; }
#calculator .templates.constructors { grid-template-columns: 1fr 1fr; }
#calculator .constructors button { padding: 10px 4px; background: var(--calc-hover); }
#calculator .advanced-create:not([open]) { display: none; }
.template-preview { height: auto; aspect-ratio: 1.6 / 1; object-fit: contain; }
@media (pointer: coarse) {
  body { --keycap-height: 40px; }
}
#calculator .view-menu-panel, #calculator .graph-settings-panel { background: var(--calc-panel); border-color: var(--calc-border); color: var(--calc-text); }
#calculator .view-tools .graph-settings-panel > #surfaces { background: var(--calc-input); border-color: var(--calc-border); }
#calculator .view-menu-panel button[aria-pressed="true"] { background: var(--calc-hover); border-color: var(--calc-border); }
#calculator .constructors button { padding: 0px; }
@media (max-width: 700px) {
  #calculator .calculator-header { grid-template-columns: minmax(0px, 1fr) auto; gap: 4px 8px; }
  #calculator .calculator-header > .brand { grid-area: 1 / 1; font-size: 19px; }
  #calculator .calculator-header > #experience-controls { grid-area: 1 / 2; justify-self: end; margin: 0px; }
  #calculator .calculator-header > .workspace-nav { grid-area: 2 / 1 / auto / -1; justify-content: flex-end; width: 100%; margin: 0px; }
  #calculator .calculator-navigation > summary { width: 36px; height: 36px; justify-content: center; padding: 0px; }
  #calculator .calculator-navigation > summary > span:last-child { display: none; }
  #calculator .file-menu > summary { font-size: 12px; min-height: 36px; padding: 8px 10px; gap: 6px; }
  #calculator .file-menu > summary > span { font-size: 14px; }
  #calculator .calculator-settings-panel { position: fixed; top: var(--calculator-header-height,108px); right: 10px; }
}
@media (max-width: 700px) {
  #calculator .example-drawer-content { max-height: min(18dvh, 160px); }
  #calculator[data-workspace-layout="equations"] .example-drawer-content { max-height: 30dvh; }
}
#calculator #objects article { padding: 6px 10px; }
#calculator .parameter-card { padding: 4px 8px 8px; }
#calculator .parameter { grid-template-columns: 1fr auto 30px 28px; }
#calculator .parameter-remove { grid-area: 1 / 4; justify-self: center; }
#calculator .parameter input[type="range"] { grid-column: 1 / -1; }
.iteration-scale { grid-column: 1 / -1; position: relative; display: flex; justify-content: space-between; font-size: 10px; color: var(--calc-muted); margin: 0px 2px 8px; }
.iteration-scale span:nth-child(2) { position: absolute; left: 60%; transform: translateX(-50%); }
#calculator #objects .object-heading { position: relative; min-height: 76px; padding-right: 34px; }
#calculator .expression-controls { position: absolute; right: 0px; top: 0px; bottom: 0px; width: 28px; display: flex; flex-direction: column; align-items: center; justify-content: space-between; }
#calculator .expression-controls .expression-menu { position: static; }
#calculator .expression-controls .expression-menu > summary { width: 28px; height: 24px; min-height: 24px; display: grid; place-items: center; padding: 0px; border: 0px; border-radius: 7px; font-size: 13px; }
#calculator #inspector .expression-controls .graph-visibility { width: 28px; min-width: 28px; height: 24px; min-height: 24px !important; }
#calculator .expression-controls .graph-visibility::before { width: 13px; height: 13px; }
#calculator #objects .object-heading .math-host { flex: 1 1 0%; min-width: 0px; }
#calculator #objects .result-note { margin: 2px 2px 8px; font-size: 11px; line-height: 1.4; color: var(--calc-muted); }
.gallery-family { min-width: 0px; }
.gallery-family > button { width: 100%; }
.gallery-examples > summary { font-size: 10px; padding: 7px 9px; cursor: pointer; border-radius: 0px 0px 8px 8px; list-style: none; }
.gallery-examples > div { display: grid; gap: 4px; padding: 4px; }
#calculator .gallery-examples button { display: grid; gap: 3px; text-align: left; font-size: 11px; padding: 9px; min-height: 36px; }
.gallery-examples button small { font-size: 10px; color: var(--calc-muted); }
#calculator .expression-controls { position: static; display: contents; }
#calculator .expression-controls > .expression-remove { position: absolute; right: 3px; top: 0px; }
#calculator .expression-controls .expression-menu > summary { position: absolute; right: 0px; top: 26px; }
#calculator #inspector .expression-controls > .graph-visibility { position: absolute; right: 0px; bottom: 0px; }
#calculator .expression-controls .expression-menu-content { top: 54px; left: 0px; right: 0px; }
@media (max-width: 1100px) {
  #calculator #objects .object-heading { min-height: 88px; }
  #calculator #inspector .expression-controls > .expression-remove { width: 28px; height: 28px; right: 0px; min-width: 28px !important; min-height: 28px !important; }
  #calculator #inspector .expression-controls .expression-menu > summary { width: 28px; min-width: 28px; height: 28px; top: 30px; min-height: 28px !important; }
  #calculator #inspector .expression-controls > .graph-visibility { height: 28px; min-height: 28px !important; }
  #calculator #inspector .parameter-card .parameter-remove { width: 28px; height: 28px; min-width: 28px !important; min-height: 28px !important; }
}
#calculator #inspector .templates .gallery-card { display: grid; grid-template-rows: 84px 30px 36px; height: 152px; min-height: 152px; padding: 0px; gap: 0px; align-items: stretch; align-content: start; overflow: hidden; }
#calculator #inspector .gallery-card > .template-preview, #calculator #inspector .gallery-card > .template-notation { display: block; width: 100%; height: 84px; min-height: 84px; aspect-ratio: auto; margin: 0px; padding: 0px; object-fit: cover; }
#calculator #inspector .gallery-card > .template-notation { display: grid; place-items: center; }
#calculator #inspector .gallery-card > strong, #calculator #inspector .gallery-card > small { margin: 0px; overflow: hidden; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: border-box; }
#calculator #inspector .gallery-card > strong { padding: 4px 7px 0px; font-size: 11px; line-height: 13px; }
#calculator #inspector .gallery-card > small { padding: 2px 7px 8px; font-size: 10px; line-height: 13px; }
#calculator .gallery-family { align-self: start; }
#calculator .templates > .gallery-card { align-self: start; }
#calculator .expression-controls .expression-menu-content:popover-open { position: fixed; left: 12px; right: 12px; width: auto; margin: 0px; bottom: auto; max-width: none; }
.equation-tools { display: flex; gap: 6px; align-items: center; padding: 4px 0px 8px; }
#calculator .equation-tools > button { font-size: 11px; padding: 5px 10px; min-height: 30px; border-radius: 999px; }
#calculator .editor-tool-panel { box-sizing: border-box; width: min(520px, -24px + 100vw); max-height: calc(100dvh - 90px); margin: 0px; padding: 12px; color: var(--calc-text); background: var(--calc-raised); border: 1px solid var(--calc-border); border-radius: 16px; backdrop-filter: blur(28px); box-shadow: 0 16px 50px var(--calc-shadow); overflow: auto; }
#calculator .editor-tool-panel:not(:popover-open) { display: none; }
.editor-tool-panel > header { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; }
.editor-tool-panel > header strong { flex: 1 1 0%; font-size: 13px; }
#calculator .editor-tool-panel > header button { display: grid; place-items: center; width: 30px; height: 30px; min-height: 30px; padding: 0px; border-radius: 50%; font-size: 18px; }
#calculator .editor-tool-panel.is-expanded { width: auto; height: calc(100dvh - 32px); max-height: none; inset: 16px !important; }
#calculator .editor-tool-panel details > summary[hidden] { display: none; }
#calculator .editor-tool-panel .editor-help, #calculator .editor-tool-panel .array-builder { margin: 0px; padding: 0px; border: 0px; background: none; }
#calculator .editor-tool-panel .shortcut-reference { padding: 0px; gap: 8px; }
#calculator .editor-tool-panel .shortcut-groups { max-height: none; overflow: visible; }
#calculator .editor-tool-panel .shortcut-group { border: 0px; border-radius: 0px; background: none; margin: 0px 0px 12px; }
#calculator .editor-tool-panel .shortcut-group h4 { margin: 12px 0px 6px; color: var(--calc-muted); font-size: 11px; }
#calculator .editor-tool-panel .shortcut-grid { grid-template-columns: 1fr; gap: 0px; padding: 0px; }
#calculator .editor-tool-panel .shortcut-item { display: grid; grid-template-columns: minmax(0px, 1fr) auto; align-items: center; min-height: 0px; border-top: 0px; border-right: 0px; border-left: 0px; border-image: none; border-bottom: 1px solid var(--calc-border); border-radius: 0px !important; background: none !important; }
#calculator .editor-tool-panel .shortcut-insert { gap: 4px; min-width: 0px; padding: 8px 4px !important; }
#calculator .editor-tool-panel .shortcut-ask { border: 0px; border-radius: 6px; min-height: 28px; padding: 5px 7px; }
#calculator .editor-tool-panel .shortcut-notation { font-size: 16px; }
.shortcut-alias-label { font: 10px system-ui; color: var(--calc-muted); align-self: center; margin-right: 2px; }
#calculator .editor-tool-panel .shortcut-badges kbd { font-size: 10px; padding: 1px 5px; }
#calculator .editor-tool-panel.is-expanded .shortcut-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); column-gap: 24px; }
.array-types { display: flex; gap: 4px; margin-bottom: 12px; }
#calculator .array-types button { flex: 1 1 0%; min-height: 32px; font-size: 12px; border-radius: 8px; padding: 5px; }
#calculator .array-types button[aria-pressed="true"] { background: var(--calc-selected); border-color: var(--calc-border-strong); }
#calculator .editor-tool-panel .array-row input { background: var(--calc-input); color: var(--calc-text); box-sizing: border-box; }
#calculator .editor-tool-panel .array-preview { background: var(--calc-input); border-radius: 8px; white-space: pre-wrap; overflow-wrap: anywhere; }
@media (max-width: 700px) {
  #calculator .editor-tool-panel.is-expanded { height: calc(100dvh - 16px); inset: 8px !important; }
  #calculator .editor-tool-panel.is-expanded .shortcut-grid { grid-template-columns: 1fr; }
}
#calculator .editor-tool-panel button { appearance: none; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; font-family: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; font-language-override: inherit; color: var(--calc-text); background: var(--calc-hover); border: 1px solid var(--calc-border); border-radius: 7px; cursor: pointer; padding: 6px 10px; line-height: 1.3; }
#calculator .editor-tool-panel button:hover { background: var(--calc-selected); border-color: var(--calc-border-strong); }
#calculator .editor-tool-panel input { appearance: none; font: inherit; color: var(--calc-text); background: var(--calc-input); border: 1px solid var(--calc-border); border-radius: 7px; box-sizing: border-box; }
#calculator .editor-tool-panel button:focus-visible, #calculator .editor-tool-panel input:focus-visible { outline: 2px solid var(--calc-accent); outline-offset: 2px; }
#calculator .editor-tool-panel .array-actions button { font-size: 12px; min-height: 32px; }
#calculator .editor-tool-panel .array-types button[aria-pressed="true"] { background: var(--calc-selected); border-color: var(--calc-border-strong); }
.preference-choices { display: flex; gap: 3px; flex-wrap: wrap; justify-content: flex-end; }
#calculator .preference-choices button { font-size: 10px; min-height: 29px; padding: 4px 7px; flex: 0 0 auto; border-radius: 6px; }
#calculator .preference-choices button[aria-pressed="true"] { background: var(--calc-selected); border-color: var(--calc-border-strong); }
#calculator details.teacher-placement { position: relative; padding: 0px; border: 0px; background: none; font-size: 11px; }
#calculator .teacher-placement > summary { cursor: pointer; border: 1px solid var(--calc-border); border-radius: 999px; padding: 5px 9px; list-style: none; color: var(--calc-text); background: var(--calc-panel); }
.teacher-placement > summary::-webkit-details-marker { display: none; }
.teacher-placement-options { position: absolute; top: calc(100% + 6px); right: 0px; width: 170px; z-index: 10; padding: 6px; border: 1px solid var(--calc-border); border-radius: 12px; background: var(--calc-raised); backdrop-filter: blur(24px); box-shadow: 0 8px 24px var(--calc-shadow); }
#calculator .teacher-placement-options button { display: block; width: 100%; text-align: left; padding: 8px; font-size: 11px; background: none; border: 0px; border-radius: 6px; color: var(--calc-text); }
#calculator .teacher-placement-options button:hover, #calculator .teacher-placement-options button[aria-pressed="true"] { background: var(--calc-selected); }
#calculator .insert-menu > summary .gallery-expand { display: grid; place-items: center; width: 28px; height: 28px; min-height: 28px; padding: 0px; border-radius: 50%; font-size: 17px; margin-left: 4px; }
#calculator #inspector > .insert-menu.gallery-expanded { position: fixed; inset: 16px; width: auto; height: auto; max-height: none; margin: 0px; padding: 12px; background: var(--calc-panel); backdrop-filter: blur(28px); border: 1px solid var(--calc-border); border-radius: 16px; box-sizing: border-box; overflow: auto; }
#calculator .gallery-expanded .example-drawer-content { max-height: none; overflow: visible; padding: 12px; }
#calculator .gallery-expanded .templates { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
#calculator .gallery-expanded > summary { position: sticky; top: 0px; z-index: 2; background: var(--calc-input); border-radius: 10px; }
@media (max-width: 700px) {
  #calculator #inspector > .insert-menu.gallery-expanded { inset: 8px; }
  #calculator .gallery-expanded .templates { grid-template-columns: repeat(2, minmax(0px, 1fr)); }
}
#calculator[data-calculator-theme] .editor-tool-panel :is(.editor-help, .array-builder, .shortcut-group, .shortcut-item) { background: transparent !important; }
#calculator .editor-tool-panel .shortcut-insert { background: transparent; border: 0px; border-radius: 0px; }
#calculator .editor-tool-panel .shortcut-insert:hover { background: var(--calc-hover); }
#calculator .editor-tool-panel .shortcut-ask { background: transparent; border: 0px; }
#calculator .editor-tool-panel .array-types button { font-size: 12px; min-height: 32px; padding: 5px; flex: 1 1 0%; }
#calculator .editor-tool-panel .array-row input { font-size: 13px; }
.editor-tool-panel > header { position: sticky; top: -12px; z-index: 2; padding: 8px 0px; background: var(--calc-raised); backdrop-filter: blur(20px); }
#calculator #inspector .expression-menu .actions { display: flex; flex-wrap: wrap; gap: 6px; }
#calculator #inspector .expression-menu .actions > button { flex: 1 1 calc((100% - (var(--action-columns, 2) - 1)*6px)/var(--action-columns, 2)); min-width: 0px; overflow-wrap: break-word; }
#calculator[data-calculator-theme] .editor-tool-panel .shortcut-item:hover { background: transparent !important; }
#calculator .editor-tool-panel .shortcut-item { column-gap: 10px; padding: 3px 0px !important; }
#calculator .editor-tool-panel .shortcut-insert { border-radius: 8px; padding: 8px !important; }
#calculator .editor-tool-panel .shortcut-ask { margin-right: 4px; border-radius: 8px; padding: 7px; }
#calculator .editor-tool-panel .shortcut-ask:hover { background: var(--calc-hover); }
#calculator .editor-tool-panel:popover-open { display: flex; flex-direction: column; overflow: hidden; border-bottom-color: var(--calc-border-strong); padding-bottom: 16px; }
#calculator .editor-tool-panel > header { position: relative; top: auto; flex: 0 0 auto; padding: 4px 0px 8px; background: transparent; backdrop-filter: none; }
#calculator .editor-tool-panel > details { min-height: 0px; overflow: auto; overscroll-behavior: contain; scrollbar-width: thin; padding-right: 4px !important; }
#calculator .editor-tool-panel.is-expanded > details { flex: 1 1 0%; }
#calculator #inspector > .insert-menu:not(.gallery-expanded) { border-top: 1px solid var(--calc-border); box-shadow: none; }
#calculator #inspector > .insert-menu > summary { border: 0px; border-radius: 0px; padding: 10px 14px; gap: 10px; }
#calculator .insert-menu > summary > span:first-child { flex: 1 1 0%; }
#calculator .gallery-header-actions { display: flex; align-items: center; gap: 6px; flex: 0 0 auto; }
#calculator .gallery-header-actions .drawer-toggle { border: 0px; border-radius: 50%; width: 28px; height: 28px; flex: 0 0 auto; }
#calculator .gallery-header-actions .drawer-toggle::before, #calculator .gallery-header-actions .drawer-toggle::after { left: 8px; right: 8px; top: 13px; background: var(--calc-text); }
#calculator .harmonic-controls { gap: 8px; margin: 4px 0px 8px; }
#calculator .harmonic-controls label { display: flex; align-items: center; gap: 8px; font-size: 11px; }
#calculator .harmonic-controls input { min-width: 0px; width: 70px; padding: 6px; border-radius: 7px; border: 1px solid var(--calc-border); background: var(--calc-input); color: var(--calc-text); }
#calculator .data-table-editor .value-table { width: 100%; table-layout: fixed; }
#calculator .data-table-editor input, #calculator .value-table input { width: 100%; min-width: 0px; padding: 5px; background: var(--calc-input); border: 1px solid var(--calc-border); border-radius: 6px; color: var(--calc-text); font-size: 12px; }
#calculator .data-table-editor th:last-child, #calculator .data-table-editor td:last-child { width: 34px; }
#calculator .data-table-editor button { min-height: 28px; padding: 4px 8px; font-size: 12px; }
.equation-tools { flex-wrap: wrap; }
.point-readout { position: absolute; right: 16px; bottom: 40px; border: 1px solid var(--calc-border); background: var(--calc-panel); backdrop-filter: blur(16px); border-radius: 8px; padding: 7px 10px; font: 12px ui-monospace, monospace; color: var(--calc-text); pointer-events: none; }
#calculator .value-table button { min-height: 28px; padding: 4px 8px; font-size: 12px; }
#calculator .value-table th:last-child:empty { width: 34px; }
#calculator .data-table-actions { display: flex; gap: 6px; margin-top: 6px; }
#calculator #objects .harmonic-title:not([hidden]){position:static;font-size:15px;color:var(--calc-text);font-weight:500;flex:1}
#calculator #objects .has-harmonic:not(.show-harmonic-equation) .math-host{display:none}
#calculator #objects .has-harmonic.show-harmonic-equation .harmonic-title{display:none}
#calculator .harmonic-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
#calculator .harmonic-controls label{display:flex;align-items:center;gap:6px;flex:1}
#calculator .harmonic-controls input{width:64px}
#calculator .harmonic-controls button{min-height:28px;padding:4px 8px;font-size:11px}

/* Related insertion actions share geometry, border, alignment, and weight. */
#calculator .insertion-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:12px 0}
#calculator .insertion-actions #slider-add{display:block;margin:0}
#calculator .insertion-actions #slider-add button,#calculator .insertion-actions #add{display:flex;align-items:center;justify-content:center;width:100%;min-height:38px;margin:0;padding:8px 12px;border:1px solid var(--calc-border);border-radius:9px;background:var(--calc-hover);color:var(--calc-text);font:500 12px system-ui;letter-spacing:0}
#calculator .insertion-actions button:hover{background:var(--calc-selected);border-color:var(--calc-border-strong)}

#calculator #status:empty{display:none}

/* One outer slider frame; only separate successive visible sliders. */
#calculator .parameter-section > .section-heading{margin-bottom:10px}
#calculator .parameter-card{border-top:0}
#calculator .parameter-card:not([hidden]) ~ .parameter-card:not([hidden]){border-top:1px solid var(--calc-border);margin-top:8px;padding-top:12px}
#calculator .slider-suggestions:not(:empty){margin-bottom:12px;gap:8px}
#calculator .parameter-card .parameter{row-gap:8px}
#calculator .parameter-section + .insertion-actions{margin-top:16px}
#calculator .parameter-settings[open]{padding-top:8px}

#calculator .surface-lines-controls{padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--calc-border)}
#calculator .surface-spacing-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;color:var(--calc-muted)}
#calculator .surface-spacing-options{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
#calculator .surface-spacing-options button{padding:6px 8px;font-size:10px;min-height:30px;border-radius:7px}
#calculator .surface-lines-hint{font-size:11px;line-height:1.4;color:var(--calc-muted);margin:8px 0 0}
#calculator .surface-line-material-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:11px;color:var(--calc-muted)}
#calculator .surface-line-material-options{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
#calculator .surface-line-material-options button{padding:6px 8px;font-size:10px;min-height:30px;border-radius:7px}
@media(max-width:1100px){#calculator .surface-spacing-options button{min-height:44px;font-size:11px}}
@media(max-width:1100px){#calculator .surface-line-material-options button{min-height:44px;font-size:11px}}
@media(min-width:1101px){#calculator #grid-menu > .view-menu-panel{max-height:calc(var(--calculator-visible-height,100dvh) - var(--calculator-header-height,76px) - 84px)}}
@media(max-width:1100px){
 #calculator #grid-menu [role="switch"]{display:inline-flex;align-items:center;justify-content:center;flex:0 0 56px;width:56px;min-width:56px;height:44px;min-height:44px;padding:8px 12px;border-radius:999px;font-size:12px;line-height:1}
}