:root{--bg:#f3f4f6;--panel-bg:#fff;--text-color:#111827;--muted-text:#4b5563;--border-color:#d1d5db;--hover-bg:#e5e7eb;--plot-bg:#fff;--plot-ink:#111827;--plot-grid:#9ca3af;--plot-curve:#2563eb;--plot-tangent:#047857;--plot-gridline:#eceef1;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text-color);background:var(--bg);-webkit-font-smoothing:antialiased;font:14px/1.4 system-ui,Segoe UI,Roboto,sans-serif}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}:root[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0f1115;--panel-bg:#1a1d24;--text-color:#e5e7eb;--muted-text:#9ca3af;--border-color:#333846;--hover-bg:#262a35;--plot-bg:#12151b;--plot-ink:#e5e7eb;--plot-grid:#6b7280;--plot-curve:#60a5fa;--plot-tangent:#34d399;--plot-gridline:#20242d}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0f1115;--panel-bg:#1a1d24;--text-color:#e5e7eb;--muted-text:#9ca3af;--border-color:#333846;--hover-bg:#262a35;--plot-bg:#12151b;--plot-ink:#e5e7eb;--plot-grid:#6b7280;--plot-curve:#60a5fa;--plot-tangent:#34d399;--plot-gridline:#20242d}}*{box-sizing:border-box}body{margin:0}button{font:inherit;color:inherit;-webkit-user-select:none;user-select:none}button:not(.menu-bar__item,.menu-bar__label,.icon-button){border:1px solid var(--border-color);background:var(--panel-bg);cursor:pointer;border-radius:5px;padding:5px 12px}@media (hover:hover){button:hover:not(:disabled,.icon-button){background:var(--hover-bg)}}.icon-button{width:28px;height:28px;color:var(--muted-text);cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;padding:0;display:flex}@media (hover:hover){.icon-button:hover{color:var(--text-color);background:var(--hover-bg)}}button:disabled{opacity:.5;cursor:default}input[type=text],input[type=number]{font:inherit;color:inherit;background:var(--panel-bg);border:1px solid var(--border-color);border-radius:4px;padding:3px 6px}a{color:#2563eb}.app{flex-direction:column;min-height:100vh;display:flex}.app__main{flex:1;align-items:stretch;gap:12px;padding:12px;display:flex}.app__panel--function{flex:0 0 440px}.app__panel--circle{flex:280px}.app__panel--graph{flex:1.3 320px}.app__panel{background:var(--panel-bg);border:1px solid var(--border-color);border-radius:10px;flex-direction:column;min-width:0;padding:12px;display:flex}.app__panel-body{display:contents}.app__panel-head{align-items:center;gap:12px;min-height:28px;margin-bottom:4px;display:flex}.app__panel-actions{gap:2px;margin-left:auto;display:flex}.app__panel .app__panel-toggle{font:inherit;color:var(--muted-text);text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:0;align-items:center;gap:8px;margin:0;padding:4px 0;font-size:13px;font-weight:600;display:flex}@media (hover:hover){.app__panel .app__panel-toggle:hover{color:var(--text-color)}.app__panel[data-collapsed=true] .app__panel-toggle:hover{background:var(--hover-bg)}}.app__panel-chevron{text-align:center;width:18px;font-size:20px;line-height:1;transition:transform .12s;display:inline-block}.app__panel[data-collapsed=true] .app__panel-chevron{transform:rotate(-90deg)}.app__panel[data-collapsed=true] .app__panel-body{display:none}.app__panel[data-collapsed=true] .app__panel-head{margin-bottom:0}@media (width<=1100px){.app__main{flex-direction:column}.app__panel--function,.app__panel--circle,.app__panel--graph{flex:none}}@media (width>=1101px){.app__panel[data-collapsed=true]{flex:none;padding:0}.app__panel[data-collapsed=true] .app__panel-head{flex-direction:column;align-items:center;height:100%}.app__panel[data-collapsed=true] .app__panel-toggle{writing-mode:vertical-rl;border-radius:10px;flex:1;justify-content:flex-end;align-self:stretch;padding:12px 8px 15px;transform:rotate(180deg)}.app__panel[data-collapsed=true] .app__panel-chevron{writing-mode:horizontal-tb;order:1;transform:rotate(90deg)}.app__panel[data-collapsed=true] .app__panel-actions{display:none}}@media print{.app{height:auto}.app__main{display:block}.app__panel{break-inside:avoid;border:none;padding:0}.app__panel+.app__panel{margin-top:18px}.app__panel--function{display:flex}.app__panel-toggle,.app__panel-actions{display:none!important}.app__panel[data-collapsed=true],.function-graph__toolbar,.stepper,.function-panel__period-buttons{display:none}}.function-graph{flex-direction:column;gap:6px;min-width:0;height:100%;display:flex;position:relative}.function-graph__toolbar{align-items:center;gap:12px;min-height:28px;display:flex}.function-graph__tangent{cursor:pointer;align-items:center;gap:6px;font-size:13px;display:flex}.function-graph__canvas-wrap{aspect-ratio:1;border:1px solid var(--border-color);border-radius:8px;flex:none;min-width:0;position:relative;overflow:hidden}.function-graph__canvas-wrap canvas{cursor:crosshair;touch-action:none;-webkit-user-select:none;user-select:none;width:100%;height:100%;display:block;position:absolute;inset:0}.function-graph{--plot-size:min(100%, 66svh)}.function-graph__toolbar,.function-graph__canvas-wrap,.function-graph__readout{width:var(--plot-size);align-self:center}@media (width<=1100px){.function-graph{--plot-size:min(80%, max(34svh, 260px))}}@media (width>=701px) and (width<=1100px){.function-graph{--plot-size:min(80%, max(30svh, 260px))}}.function-graph__readout{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 12px;font-size:13px;font-weight:600;display:flex}.function-graph__slope{color:var(--plot-tangent);font-family:ui-monospace,Cascadia Mono,SF Mono,Menlo,Consolas,Liberation Mono,monospace;font-size:12px}.stepper{flex:none;align-items:stretch;display:flex}.stepper .stepper__button{cursor:pointer;justify-content:center;align-items:center;width:28px;padding:0;font-size:14px;line-height:1;display:flex}.stepper .stepper__button:first-child{border-radius:5px 0 0 5px}.stepper .stepper__button:last-child{border-radius:0 5px 5px 0;margin-left:-1px}@media (pointer:coarse){.stepper .stepper__button{width:40px;font-size:16px}}.function-panel{--label-width:92px;--field-width:90px;--control-height:24px;--row-gap:8px;--field-gap:4px;flex-direction:column;gap:14px;font-size:13px;display:flex}.function-panel__header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px 12px;display:flex}.function-panel__type{white-space:nowrap;flex:0 auto;align-items:center;gap:6px;max-width:100%;display:flex;overflow-x:auto}.function-panel__type select{font:inherit;flex:none;min-width:max-content;padding:1px 4px}.function-panel__columns{flex-wrap:wrap;align-items:flex-start;gap:20px;display:flex}.function-panel__column{flex-direction:column;gap:14px;min-width:0;display:flex}.function-panel__group{flex:0 auto;max-width:100%;overflow-x:auto}.function-panel__group--trig{flex:320px}.function-panel__group h4{color:var(--muted-text);margin:0 0 6px;font-size:12px;font-weight:600;text-decoration:underline}.function-panel__row{align-items:center;gap:var(--row-gap);margin-bottom:4px;display:flex}.function-panel__row label{min-width:var(--label-width);align-items:center;gap:4px;display:flex}.function-panel__field{align-items:stretch;gap:var(--field-gap);display:flex}.function-panel__row input[type=text]{width:var(--field-width);height:var(--control-height);text-align:right;padding:2px 4px}.function-panel__symbolic{width:80px;color:var(--muted-text);white-space:nowrap;flex:none;font-family:ui-monospace,Cascadia Mono,SF Mono,Menlo,Consolas,Liberation Mono,monospace;font-size:12px}.function-panel__row--trig label,.function-panel__arc-result,.function-panel__note{letter-spacing:-.2px;font-family:ui-monospace,Cascadia Mono,SF Mono,Menlo,Consolas,Liberation Mono,monospace;font-size:12.5px}.function-panel__rows{align-items:center;row-gap:4px;width:max-content;display:grid}.function-panel__rows--standard{column-gap:var(--row-gap);grid-template-columns:max-content max-content max-content}.function-panel__rows--arc{grid-template-columns:max-content max-content max-content max-content;column-gap:2px}.function-panel__rows .function-panel__row{display:contents}.function-panel__rows .function-panel__symbolic,.function-panel__rows .function-panel__arc-result,.function-panel__rows .function-panel__note{width:auto;min-width:0}.function-panel__row--trig .function-panel__call{white-space:nowrap;min-width:124px}.function-panel__row--trig .function-panel__call--arc{flex:none;min-width:0}.function-panel__row--arc .function-panel__field{flex:none}.function-panel__row--arc{gap:2px}.function-panel__row--arc .function-panel__note{margin-left:14px}.function-panel__arc-result{white-space:nowrap;flex:none;min-width:86px}.function-panel__note{min-width:68px;color:var(--muted-text);white-space:nowrap;flex:none;font-size:11px}.function-panel__column .function-panel__symbolic{width:52px}.function-panel__period{justify-content:flex-start;margin-top:8px}.function-panel__period>span:first-child{min-width:calc(var(--label-width) + var(--field-width) + var(--field-gap))}.function-panel__period-amount{color:var(--muted-text)}.function-panel__period-buttons{flex:none;display:flex}.function-panel__period .function-panel__period-buttons button{width:28px;height:var(--control-height);justify-content:center;align-items:center;padding:0;font-size:14px;line-height:1;display:flex}.function-panel__period .function-panel__period-buttons button:first-child{border-radius:5px 0 0 5px}.function-panel__period .function-panel__period-buttons button:last-child{border-radius:0 5px 5px 0;margin-left:-1px}@media (width<=700px){.function-panel{--field-width:70px}}@media (pointer:coarse){.function-panel__period .function-panel__period-buttons button{width:40px;font-size:16px}}.circle-panel{flex-direction:column;align-items:center;gap:8px;display:flex;position:relative}.circle-panel__svg{aspect-ratio:284/308;touch-action:pan-y;background:var(--panel-bg);-webkit-user-select:none;user-select:none;border-radius:8px;width:100%;max-width:284px;overflow:visible}.circle-panel__disc,.circle-panel__hit{touch-action:none}.circle-panel__hit{cursor:crosshair}.circle-panel__axis-label{pointer-events:none}.circle-panel__readout{flex-wrap:wrap;justify-content:center;align-items:center;gap:2px 6px;font-family:ui-monospace,Cascadia Mono,SF Mono,Menlo,Consolas,Liberation Mono,monospace;font-size:13px;display:flex}.circle-panel__fraction{text-align:center;vertical-align:middle;line-height:1.25;display:inline-grid}.circle-panel__fraction>span{padding:0 3px}.circle-panel__fraction--values{text-align:right}.circle-panel__fraction-bottom{border-top:1px solid var(--text-color)}@media (width<=700px){.circle-panel__svg{width:50%}.circle-panel__axis-label{font-size:18px}.circle-panel__segment,.circle-panel__bar{stroke-width:5px}.circle-panel__disc{stroke-width:1.5px}.circle-panel__point{stroke-width:4px}}.modal__overlay{z-index:50;background:#0f172a59;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal__overlay--modeless{pointer-events:none;background:0 0;justify-content:flex-end;padding:16px}.modal__overlay--modeless-top{align-items:flex-start}.modal__overlay--modeless-bottom{align-items:flex-end}.modal__overlay--modeless .modal__box{pointer-events:auto;box-shadow:0 12px 32px #0000004d}.modal__box{background:var(--panel-bg);color:var(--text-color);border-radius:10px;flex-direction:column;min-width:280px;max-width:min(90vw,480px);max-height:85vh;display:flex;overflow:hidden;box-shadow:0 12px 40px #00000040}.modal__header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:10px 14px;font-weight:600;display:flex}.modal__close{cursor:pointer;color:var(--muted-text);background:0 0;border:none;font-size:18px;line-height:1}.modal__body{padding:14px;overflow-y:auto}.settings-dialog{flex-direction:column;gap:10px;min-width:240px;display:flex}.settings-dialog__row{justify-content:space-between;align-items:center;gap:12px;display:flex}.settings-dialog__row label{font-size:13px}.settings-dialog__row input[type=number],.settings-dialog__row input[type=text]{text-align:right;width:90px;padding:3px 6px}.settings-dialog__row input[type=checkbox]{width:16px;height:16px}.settings-dialog__divider{border:none;border-top:1px solid var(--border-color);width:100%;margin:2px 0}.settings-dialog__hint{color:var(--muted-text);margin:0;font-size:12px;line-height:1.4}.settings-dialog__error{color:#dc2626;margin:0;font-size:12px}.settings-dialog__actions{justify-content:flex-end;gap:8px;display:flex}.settings-tabs{z-index:1;gap:2px;margin-bottom:-1px;padding:0 8px;display:flex;position:relative}.settings-dialog .settings-tabs__tab{border:1px solid var(--border-color);background:var(--bg);color:var(--muted-text);border-radius:6px 6px 0 0;padding:5px 14px}.settings-dialog .settings-tabs__tab[aria-selected=true]{background:var(--panel-bg);color:var(--text-color);border-bottom-color:var(--panel-bg)}.settings-sheet{border:1px solid var(--border-color);border-radius:6px;padding:12px;display:grid}.settings-sheet__panel{flex-direction:column;grid-area:1/1;gap:10px;display:flex}.settings-sheet__panel[hidden]{visibility:hidden;display:flex}.settings-dialog__reset{border-top:1px solid var(--border-color);justify-content:center;margin-top:auto;padding-top:12px;display:flex}.settings-dialog__field{flex-direction:column;gap:6px;font-size:13px;display:flex}.segmented{border:1px solid var(--border-color);border-radius:6px;align-self:flex-start;display:inline-flex;overflow:hidden}.segmented__option{position:relative}.segmented__option+.segmented__option{border-left:1px solid var(--border-color)}.segmented__option input{opacity:0;cursor:pointer;margin:0;position:absolute;inset:0}.segmented__option span{-webkit-user-select:none;user-select:none;padding:5px 14px;font-size:14px;display:block}.segmented__option input:checked+span{background:var(--text-color);color:var(--panel-bg)}.segmented__option input:focus-visible+span{outline-offset:-2px;outline:2px solid #2563eb}@media (hover:hover){.segmented__option input:not(:checked):hover+span{background:var(--hover-bg)}}.settings-dialog__stepped{align-items:stretch;gap:4px;display:flex}.settings-dialog__stepped input[type=number]{appearance:textfield}.settings-dialog__stepped input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.settings-dialog__stepped input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.settings-dialog__slider{align-items:center;gap:8px;display:flex}.settings-dialog__slider input[type=range]{width:110px}.settings-dialog__slider-value{text-align:right;font-variant-numeric:tabular-nums;min-width:30px;color:var(--muted-text)}