:root{--ms-sidebar-w:272px;--ms-rail-w:300px;--ms-gap:1.5rem;--ms-radius-sm:8px;--ms-radius:14px;--ms-radius-lg:20px;--ms-radius-pill:999px;--ms-page-bg:#f7f6f3;--ms-panel-bg:#fefdfb;--ms-panel-bg-soft:#faf8f4;--ms-ink:#1c1917;--ms-ink-soft:#44403c;--ms-muted:#78716c;--ms-line:rgba(28,25,23,0.08);--ms-line-strong:rgba(28,25,23,0.14);--ms-accent:#15803d;--ms-accent-hover:#166534;--ms-accent-soft:rgba(21,128,61,0.08);--ms-accent-softer:rgba(21,128,61,0.04);--ms-accent-ring:rgba(21,128,61,0.22);--ms-cta-start:#15803d;--ms-cta-end:#22c55e;--ms-cta-shadow:rgba(21,128,61,0.22);--ms-shadow-sm:0 1px 2px rgba(28,25,23,0.04),0 1px 3px rgba(28,25,23,0.06);--ms-shadow:0 1px 3px rgba(28,25,23,0.05),0 4px 12px rgba(28,25,23,0.06);--ms-shadow-lg:0 2px 6px rgba(28,25,23,0.05),0 12px 32px rgba(28,25,23,0.08);--ms-ring:0 0 0 3px var(--ms-accent-ring);--ms-ease:cubic-bezier(0.2,0.8,0.2,1);--ms-transition:200ms var(--ms-ease);--ms-font-sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;--ms-font-serif:"Instrument Serif","Fraunces","Cambria",Georgia,serif;--ms-font-mono:"JetBrains Mono",ui-monospace,"SF Mono",Consolas,monospace}[data-theme="dark"]{--ms-page-bg:#0c0a09;--ms-panel-bg:#1c1917;--ms-panel-bg-soft:#292524;--ms-ink:#f5f5f4;--ms-ink-soft:#d6d3d1;--ms-muted:#a8a29e;--ms-line:rgba(245,245,244,0.08);--ms-line-strong:rgba(245,245,244,0.14);--ms-accent:#4ade80;--ms-accent-hover:#86efac;--ms-accent-soft:rgba(74,222,128,0.1);--ms-accent-softer:rgba(74,222,128,0.05);--ms-accent-ring:rgba(74,222,128,0.28);--ms-cta-start:#16a34a;--ms-cta-end:#4ade80;--ms-cta-shadow:rgba(74,222,128,0.28);--ms-shadow-sm:0 1px 2px rgba(0,0,0,0.3);--ms-shadow:0 1px 3px rgba(0,0,0,0.3),0 4px 12px rgba(0,0,0,0.3);--ms-shadow-lg:0 2px 6px rgba(0,0,0,0.3),0 12px 32px rgba(0,0,0,0.4)}body.ms-body{padding-top:var(--header-height-desktop,72px);background:var(--ms-page-bg);color:var(--ms-ink);font-family:var(--ms-font-sans);font-feature-settings:"cv11","ss01";-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;position:relative}.ms-matter-host{position:absolute;top:var(--header-height-desktop,72px);left:0;right:0;height:720px;pointer-events:none;overflow:hidden;z-index:0;-webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,1) 0%,rgba(0,0,0,1) 45%,rgba(0,0,0,0.65) 75%,rgba(0,0,0,0) 100%);mask-image:linear-gradient(to bottom,rgba(0,0,0,1) 0%,rgba(0,0,0,1) 45%,rgba(0,0,0,0.65) 75%,rgba(0,0,0,0) 100%)}.ms-matter-host canvas{display:block}@media (max-width:899px){.ms-matter-host{top:var(--header-height-mobile,64px);height:520px}}.ms-hero,.ms-main{position:relative;z-index:1}.ms-sidebar,.ms-rail{z-index:5}@media (prefers-reduced-motion:reduce){.ms-matter-host{display:none}}@media (max-width:899px){body.ms-body{padding-top:var(--header-height-mobile,64px)}}.ms-hero{max-width:1440px;margin:1rem auto;padding:0 var(--ms-gap)}.ms-main{max-width:1440px;margin:1rem auto 3rem;padding:0 var(--ms-gap) 2rem;display:grid;grid-template-columns:var(--ms-sidebar-w) minmax(0,1fr);gap:var(--ms-gap);align-items:start}@media (min-width:1280px){.ms-main{grid-template-columns:var(--ms-sidebar-w) minmax(0,1fr) var(--ms-rail-w)}}.ms-sidebar{background:var(--ms-panel-bg);border-radius:var(--ms-radius);padding:0.75rem 0.5rem;position:sticky;top:calc(var(--header-height-desktop,72px) + 12px);max-height:calc(100vh - var(--header-height-desktop,72px) - 28px);overflow-y:auto;scrollbar-width:thin;box-shadow:var(--ms-shadow-sm);border:1px solid var(--ms-line)}.ms-sidebar-search{display:flex;align-items:center;gap:0.5rem;padding:0.45rem 0.7rem;margin:0.25rem 0.25rem 0.6rem;background:var(--ms-panel-bg-soft);border:1px solid transparent;border-radius:var(--ms-radius-sm);transition:border-color var(--ms-transition),background var(--ms-transition)}.ms-sidebar-search:focus-within{border-color:var(--ms-accent);background:var(--ms-panel-bg);box-shadow:var(--ms-ring)}.ms-sidebar-search input{flex:1;min-width:0;border:none;background:none;outline:none;font:13px var(--ms-font-sans);color:var(--ms-ink)}.ms-sidebar-search::before{content:"";width:14px;height:14px;flex-shrink:0;background-image:url(data:image/svg+xml,%3Csvg\ xmlns=\'http://www.w3.org/2000/svg\'\ viewBox=\'0\ 0\ 16\ 16\'\ fill=\'none\'\ stroke=\'%2378716c\'\ stroke-width=\'1.8\'%3E%3Ccircle\ cx=\'7\'\ cy=\'7\'\ r=\'5\'/%3E%3Cpath\ d=\'m11\ 11\ 3\ 3\'/%3E%3C/svg%3E);background-size:contain;background-repeat:no-repeat}.ms-group{margin-bottom:0.15rem}.ms-group-header{display:flex;align-items:center;gap:0.45rem;width:100%;padding:0.5rem 0.65rem;background:none;border:none;font:600 10.5px var(--ms-font-sans);text-transform:uppercase;letter-spacing:0.08em;color:var(--ms-muted);cursor:pointer;border-radius:var(--ms-radius-sm);transition:background var(--ms-transition),color var(--ms-transition);text-align:left}.ms-group-header:hover{background:var(--ms-accent-softer);color:var(--ms-ink)}.ms-group-chevron{margin-left:auto;transition:transform var(--ms-transition);font-size:9px;color:var(--ms-muted)}.ms-group.collapsed .ms-group-chevron{transform:rotate(-90deg)}.ms-group-body{display:flex;flex-direction:column;padding:0.15rem 0 0.25rem;overflow:hidden;max-height:2400px;transition:max-height 0.28s var(--ms-ease)}.ms-group.collapsed .ms-group-body{max-height:0;padding:0}.ms-item{display:flex;align-items:center;gap:0.6rem;padding:0.42rem 0.65rem;margin:1px 0;border-radius:var(--ms-radius-sm);text-decoration:none;color:var(--ms-ink);font:500 13.5px var(--ms-font-sans);line-height:1.25;transition:background var(--ms-transition),color var(--ms-transition)}.ms-item:hover{background:var(--ms-accent-softer);color:var(--ms-accent)}.ms-item.active{background:var(--ms-accent-soft);color:var(--ms-accent);font-weight:600}.ms-item-icon{width:24px;height:24px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;font-size:12.5px;background:var(--ms-panel-bg-soft);color:var(--ms-ink-soft);font-family:var(--ms-font-serif);font-weight:400;transition:background var(--ms-transition),color var(--ms-transition)}.ms-item:hover .ms-item-icon{background:var(--ms-accent-soft);color:var(--ms-accent)}.ms-item.active .ms-item-icon{background:var(--ms-accent);color:#fff}.ms-workspace{display:flex;flex-direction:column;gap:var(--ms-gap);min-width:0}.ms-card{background:var(--ms-panel-bg);border-radius:var(--ms-radius);padding:1.75rem;box-shadow:var(--ms-shadow-sm);border:1px solid var(--ms-line)}.ms-rail{position:sticky;top:calc(var(--header-height-desktop,72px) + 12px);max-height:calc(100vh - var(--header-height-desktop,72px) - 28px);overflow-y:auto;display:none;flex-direction:column;gap:1rem;scrollbar-width:thin}@media (min-width:1280px){.ms-rail{display:flex}}.ms-inline-ad{margin:var(--ms-gap)0}@media (min-width:1280px){.ms-inline-ad{display:none}}.ms-sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:4px 6px 6px;margin-bottom:2px}.ms-sidebar-title{font:600 10.5px var(--ms-font-sans);text-transform:uppercase;letter-spacing:0.08em;color:var(--ms-muted)}.ms-sidebar-hide-btn{display:none;place-items:center;width:26px;height:26px;cursor:pointer;background:transparent;border:0;color:var(--ms-muted);border-radius:6px;transition:background var(--ms-transition),color var(--ms-transition)}.ms-sidebar-hide-btn:hover{background:var(--ms-accent-softer);color:var(--ms-accent)}.ms-sidebar-hide-btn svg{width:16px;height:16px}.ms-sidebar-toggle{display:none;padding:0.55rem 0.9rem;background:var(--ms-panel-bg);border:1px solid var(--ms-line);border-radius:var(--ms-radius-sm);box-shadow:var(--ms-shadow-sm);font:500 13px var(--ms-font-sans);color:var(--ms-ink);cursor:pointer;transition:transform var(--ms-transition),box-shadow var(--ms-transition)}.ms-sidebar-toggle:hover{transform:translateY(-1px);box-shadow:var(--ms-shadow)}.ms-sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(12,10,9,0.55);backdrop-filter:blur(3px);z-index:99}@media (max-width:1023px){.ms-main{grid-template-columns:minmax(0,1fr)}.ms-sidebar-toggle{display:inline-flex;align-items:center;gap:0.4rem;margin-bottom:0.5rem}.ms-sidebar{position:fixed;top:0;left:0;bottom:0;width:300px;max-height:none;border-radius:0;z-index:100;transform:translateX(-102%);transition:transform 0.25s var(--ms-ease);box-shadow:4px 0 32px rgba(0,0,0,0.25)}.ms-sidebar.open{transform:translateX(0)}.ms-sidebar-backdrop.open{display:block}}@media (min-width:1024px){.ms-sidebar-hide-btn{display:grid}.ms-main.is-sidebar-hidden{grid-template-columns:minmax(0,1fr)}.ms-main.is-sidebar-hidden .ms-sidebar{display:none}.ms-main.is-sidebar-hidden .ms-sidebar-toggle{display:inline-flex;align-items:center;gap:0.4rem;margin-bottom:0.5rem;grid-column:1/-1;justify-self:start;align-self:start}}@media (min-width:1280px){.ms-main.is-sidebar-hidden{grid-template-columns:minmax(0,1fr) var(--ms-rail-w)}}.ic-stack{display:flex;flex-direction:column;gap:var(--ms-gap);min-width:0}.ic-hero{background:var(--ms-panel-bg);border-radius:var(--ms-radius-lg);padding:1.5rem 1.75rem;box-shadow:var(--ms-shadow-sm);border:1px solid var(--ms-line);position:relative;overflow:hidden}.ic-hero::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--ms-accent) 0%,var(--ms-cta-start) 50%,var(--ms-cta-end) 100%);opacity:0.7}.ic-hero-top{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.ic-hero-top .ic-mode-toggle{display:inline-flex;gap:2px;background:var(--ms-panel-bg-soft);padding:3px;border-radius:var(--ms-radius-pill);border:1px solid var(--ms-line)}.ic-hero-top .ic-mode-btn{padding:5px 14px;border:none;background:transparent;color:var(--ms-muted);font:600 12px var(--ms-font-sans);cursor:pointer;border-radius:var(--ms-radius-pill);transition:color var(--ms-transition),background var(--ms-transition)}.ic-hero-top .ic-mode-btn:hover:not(.active){color:var(--ms-ink)}.ic-hero-top .ic-mode-btn.active{background:var(--ms-panel-bg);color:var(--ms-accent);box-shadow:var(--ms-shadow-sm)}.ic-hero-label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.45rem;gap:0.75rem}.ic-hero-label-row .ic-expr-label{font:600 0.78rem var(--ms-font-sans);text-transform:uppercase;letter-spacing:0.06em;color:var(--ms-muted);margin:0}.ic-hero .ic-expr-wrap{margin:0}.ic-expr-wrap[data-input-mode="visual"] #ic-expr,.ic-expr-wrap[data-input-mode="visual"] #ic-autocomplete,.ic-expr-wrap:not([data-input-mode]) #ic-expr,.ic-expr-wrap:not([data-input-mode]) #ic-autocomplete{display:none}.ic-expr-wrap[data-input-mode="text"] #ic-mathfield{display:none}.ic-expr-wrap .ic-expr-hint>span{display:none}.ic-expr-wrap[data-input-mode="visual"] .ic-expr-hint .ic-hint-visual,.ic-expr-wrap:not([data-input-mode]) .ic-expr-hint .ic-hint-visual,.ic-expr-wrap[data-input-mode="text"] .ic-expr-hint .ic-hint-text{display:inline}.ic-hero .ic-mathfield{min-height:56px;padding:0.85rem 1.1rem;font-size:1.2rem;border:1.5px solid var(--ms-line-strong);border-radius:var(--ms-radius);background:var(--ms-panel-bg-soft);color:var(--ms-ink);transition:border-color var(--ms-transition),box-shadow var(--ms-transition),background var(--ms-transition)}.ic-hero .ic-mathfield:focus-within{border-color:var(--ms-accent);background:var(--ms-panel-bg);box-shadow:var(--ms-ring)}.ic-hero #ic-expr{min-height:48px;padding:0.7rem 0.95rem;font:15px var(--ms-font-mono);border:1.5px solid var(--ms-line-strong);border-radius:var(--ms-radius);background:var(--ms-panel-bg-soft);color:var(--ms-ink);width:100%;transition:border-color var(--ms-transition),box-shadow var(--ms-transition),background var(--ms-transition)}.ic-hero #ic-expr:focus{outline:none;border-color:var(--ms-accent);background:var(--ms-panel-bg);box-shadow:var(--ms-ring)}.ic-hero .ic-expr-hint{font-size:0.76rem;margin-top:0.4rem;color:var(--ms-muted)}.ic-hero .ic-expr-hint code{background:var(--ms-panel-bg-soft);padding:1px 5px;border-radius:4px;font:11px var(--ms-font-mono);color:var(--ms-ink-soft)}.ic-hero .ic-preview-strip{margin-top:0.65rem;padding:0.7rem 0.9rem;background:var(--ms-accent-softer);border-left:3px solid var(--ms-accent);border-radius:0 var(--ms-radius-sm) var(--ms-radius-sm)0;font-size:0.95rem;color:var(--ms-ink);min-height:2.25em;display:none;align-items:center;gap:0.6rem}.ic-hero[data-input-mode="text"] .ic-preview-strip{display:flex}.ic-hero .ic-preview-label{color:var(--ms-muted);font:600 0.7rem var(--ms-font-sans);text-transform:uppercase;letter-spacing:0.05em;flex-shrink:0}.ic-hero-params{display:grid;grid-template-columns:minmax(110px,180px);gap:0.75rem;margin-top:1rem;align-items:end;transition:grid-template-columns 0.25s var(--ms-ease)}.ic-hero-params.visible{grid-template-columns:minmax(110px,180px) 1fr 1fr}@media (max-width:480px){.ic-hero-params.visible{grid-template-columns:1fr 1fr}.ic-hero-params.visible>.tool-form-group:first-child{grid-column:1/-1}}.ic-hero-params .tool-form-group{margin:0}.ic-hero-params label{display:block;font:600 0.72rem var(--ms-font-sans);text-transform:uppercase;letter-spacing:0.05em;color:var(--ms-muted);margin-bottom:0.3rem}.ic-hero-params .tool-select,.ic-hero-params .tool-input{width:100%;padding:0.55rem 0.8rem;border:1.5px solid var(--ms-line-strong);border-radius:var(--ms-radius-sm);background:var(--ms-panel-bg-soft);font:14px var(--ms-font-sans);color:var(--ms-ink);transition:border-color var(--ms-transition),box-shadow var(--ms-transition),background var(--ms-transition)}.ic-hero-params .tool-select:focus,.ic-hero-params .tool-input:focus{outline:none;border-color:var(--ms-accent);background:var(--ms-panel-bg);box-shadow:var(--ms-ring)}.ic-hero-params .ic-bounds-group{display:none}.ic-hero-params.visible .ic-bounds-group{display:block}.ic-hero-cta-row{margin-top:1rem;display:flex;align-items:center;gap:0.85rem;flex-wrap:wrap}.ic-hero-warn{font:500 0.82rem var(--ms-font-sans);color:#b91c1c;opacity:0;transform:translateY(-2px);transition:opacity var(--ms-transition),transform var(--ms-transition)}.ic-hero-warn.show{opacity:1;transform:none;animation:ms-shake 0.35s var(--ms-ease)}[data-theme="dark"] .ic-hero-warn{color:#fca5a5}@keyframes ms-shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}.ic-hero-cta{display:inline-block;padding:0.5rem 1rem;background:var(--ms-accent);color:#fff;border:1px solid var(--ms-accent);border-radius:var(--ms-radius-pill);font:500 0.82rem var(--ms-font-sans);letter-spacing:0;cursor:pointer;transition:background var(--ms-transition),border-color var(--ms-transition),transform 0.1s var(--ms-ease)}.ic-hero-cta:hover{background:var(--ms-accent-hover);border-color:var(--ms-accent-hover);transform:translateY(-1px)}.ic-hero-cta:active{transform:translateY(0)}.ic-hero-cta.is-disabled,.ic-hero-cta.is-disabled:hover{background:var(--ms-panel-bg-soft);color:var(--ms-muted);border-color:var(--ms-line-strong);cursor:not-allowed;pointer-events:none;transform:none;box-shadow:none}.ic-hero-cta.is-busy{pointer-events:none;opacity:0.7;cursor:wait;transform:none!important}.ic-hero-cta.is-busy::after{content:"";display:inline-block;width:12px;height:12px;margin-left:0.55rem;vertical-align:-1px;border:2px solid rgba(255,255,255,0.4);border-top-color:#fff;border-radius:50%;animation:ms-spin 0.7s linear infinite}@keyframes ms-spin{to{transform:rotate(360deg)}}.ic-hero-methods{margin-top:1rem;padding-top:0.9rem;border-top:1px dashed var(--ms-line)}.ic-hero-methods>.ic-hero-methods-summary{list-style:none;display:flex;align-items:center;gap:0.4rem;padding:0.35rem 0;cursor:pointer;color:var(--ms-muted);font:600 0.78rem var(--ms-font-sans);transition:color var(--ms-transition)}.ic-hero-methods>.ic-hero-methods-summary::-webkit-details-marker{display:none}.ic-hero-methods>.ic-hero-methods-summary::marker{content:""}.ic-hero-methods>.ic-hero-methods-summary:hover{color:var(--ms-accent)}.ic-hero-methods-chevron{margin-left:auto;width:14px;height:14px;transition:transform 0.18s var(--ms-ease)}.ic-hero-methods[open] .ic-hero-methods-chevron{transform:rotate(180deg)}.ic-hero-methods-body{display:flex;flex-direction:column;gap:0.5rem;margin-top:0.75rem;padding:0.85rem 0.95rem;background:var(--ms-panel-bg-soft);border-radius:var(--ms-radius-sm)}.ic-method-row{display:flex;align-items:center;gap:0.5rem;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}.ic-method-row::-webkit-scrollbar{height:4px}.ic-method-row::-webkit-scrollbar-thumb{background:var(--ms-line-strong);border-radius:2px}.ic-method-label{flex-shrink:0;font:600 0.7rem var(--ms-font-sans);text-transform:uppercase;letter-spacing:0.05em;color:var(--ms-muted);min-width:5.5rem}.ic-hero .ic-example-chip{flex-shrink:0;padding:0.35rem 0.85rem;border:1px solid var(--ms-line-strong);border-radius:var(--ms-radius-pill);background:var(--ms-panel-bg);color:var(--ms-ink);font:500 13px var(--ms-font-mono);cursor:pointer;transition:border-color var(--ms-transition),background var(--ms-transition),color var(--ms-transition)}.ic-hero .ic-example-chip:hover{border-color:var(--ms-accent);background:var(--ms-accent-softer);color:var(--ms-accent)}.ic-hero-syntax{margin-top:0.9rem;padding-top:0.9rem;border-top:1px dashed var(--ms-line)}.ic-hero-syntax .ic-syntax-toggle{display:flex;align-items:center;gap:0.4rem;width:100%;padding:0.35rem 0;background:none;border:none;cursor:pointer;color:var(--ms-muted);font:600 0.78rem var(--ms-font-sans);text-align:left;transition:color var(--ms-transition)}.ic-hero-syntax .ic-syntax-toggle:hover{color:var(--ms-accent)}.ic-hero-syntax .ic-syntax-chevron{margin-left:auto;width:14px;height:14px;transition:transform 0.18s var(--ms-ease)}.ic-hero-syntax .ic-syntax-content.open+.ic-syntax-toggle .ic-syntax-chevron,.ic-hero-syntax .ic-syntax-toggle+.ic-syntax-content.open .ic-syntax-chevron{transform:rotate(180deg)}.ic-hero-syntax .ic-syntax-content{display:none;margin-top:0.7rem;padding:0.85rem 1rem;background:var(--ms-panel-bg-soft);border-radius:var(--ms-radius-sm);font:0.82rem var(--ms-font-sans);color:var(--ms-muted);line-height:1.65}.ic-hero-syntax .ic-syntax-content.open{display:block}.ic-hero-syntax .ic-syntax-content code{background:var(--ms-panel-bg);padding:1px 5px;border-radius:4px;font:11.5px var(--ms-font-mono);color:var(--ms-ink-soft);border:1px solid var(--ms-line)}.ic-result-card{background:var(--ms-panel-bg);border-radius:var(--ms-radius-lg);min-height:440px;display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--ms-shadow-sm);border:1px solid var(--ms-line)}.ic-stack .ic-output-tabs{display:inline-flex;gap:2px;margin:0.85rem 0.85rem 0;padding:3px;background:var(--ms-panel-bg-soft);border:1px solid var(--ms-line);border-radius:var(--ms-radius-pill);align-self:flex-start}.ic-stack .ic-output-tab{padding:5px 14px;background:transparent;border:none;color:var(--ms-muted);font:600 12px var(--ms-font-sans);cursor:pointer;border-radius:var(--ms-radius-pill);transition:color var(--ms-transition),background var(--ms-transition)}.ic-stack .ic-output-tab:hover:not(.active){color:var(--ms-ink)}.ic-stack .ic-output-tab.active{background:var(--ms-panel-bg);color:var(--ms-accent);box-shadow:var(--ms-shadow-sm)}.ic-stack .ic-panel{flex:1 1 auto;min-height:0;display:none;padding:1.5rem}.ic-stack .ic-panel.active{display:flex;flex-direction:column}.ic-stack .ic-panel>.tool-card{flex:1;margin:0;box-shadow:none;border:none;padding:0;background:transparent}.ic-result-card .tool-result-actions{display:flex;flex-wrap:wrap;gap:0.5rem;padding:0.9rem 0 0;margin:0.9rem 0 0;border-top:1px solid var(--ms-line)}.ic-result-card .tool-result-actions .tool-action-btn,.ic-result-card .tool-result-actions .tool-action-btn:hover{width:auto!important;margin-top:0!important}.ic-result-card .tool-result-actions .tool-action-btn{margin:0;padding:0.5rem 1rem;background:var(--ms-panel-bg-soft)!important;color:var(--ms-ink-soft)!important;border:1px solid var(--ms-line-strong);border-radius:var(--ms-radius-pill);font:500 0.82rem var(--ms-font-sans);cursor:pointer;box-shadow:none!important;transform:none;transition:color var(--ms-transition),background var(--ms-transition),border-color var(--ms-transition),transform var(--ms-transition)!important}.ic-result-card .tool-result-actions .tool-action-btn:hover{background:var(--ms-accent-softer)!important;border-color:var(--ms-accent);color:var(--ms-accent)!important;transform:translateY(-1px)!important;opacity:1!important}.ic-result-card .ic-worksheet-cta{padding:1rem 0 0;margin:1rem 0 0;border-top:1px solid var(--ms-line)}.ic-result-card .ic-worksheet-cta .tool-action-btn{width:auto!important;display:inline-block!important;margin-top:0!important;padding:0.5rem 1rem!important;background:var(--ms-accent)!important;color:#fff!important;border:1px solid var(--ms-accent)!important;border-radius:var(--ms-radius-pill)!important;font:500 0.82rem var(--ms-font-sans)!important;cursor:pointer;box-shadow:none!important;transition:background var(--ms-transition),border-color var(--ms-transition),transform 0.1s var(--ms-ease)!important}.ic-result-card .ic-worksheet-cta .tool-action-btn:hover{background:var(--ms-accent-hover)!important;border-color:var(--ms-accent-hover)!important;transform:translateY(-1px)!important;opacity:1!important}.ic-hero .ic-image-btn{padding:0.45rem 0.85rem;background:var(--ms-panel-bg-soft);border:1px solid var(--ms-line-strong);border-radius:var(--ms-radius-pill);font:500 12px var(--ms-font-sans);color:var(--ms-ink-soft);cursor:pointer;transition:color var(--ms-transition),background var(--ms-transition),border-color var(--ms-transition)}.ic-hero .ic-image-btn:hover{color:var(--ms-accent);border-color:var(--ms-accent);background:var(--ms-accent-softer)}.ic-hero .ic-input-mode-toggle{display:inline-flex;gap:2px;background:var(--ms-panel-bg-soft);padding:3px;border-radius:var(--ms-radius-pill);border:1px solid var(--ms-line)}.ic-hero .ic-input-mode-btn{padding:5px 12px;border:none;background:transparent;color:var(--ms-muted);font:600 11.5px var(--ms-font-sans);cursor:pointer;border-radius:var(--ms-radius-pill);transition:color var(--ms-transition),background var(--ms-transition)}.ic-hero .ic-input-mode-btn:hover:not(.active){color:var(--ms-ink)}.ic-hero .ic-input-mode-btn.active{background:var(--ms-panel-bg);color:var(--ms-accent);box-shadow:var(--ms-shadow-sm)}.ic-stack .tool-empty-state svg{display:none}.ic-result-card .ic-result-math{padding:1.75rem 0 0;text-align:center}.ic-result-card .ic-result-math .katex-display{margin:0.5rem 0;overflow-x:auto;overflow-y:hidden}.ic-result-card .ic-result-label{font:600 0.7rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.08em;color:var(--ms-muted)!important;margin-bottom:0.45rem!important}.ic-result-card .ic-result-main{font-size:1.4rem!important;padding:1.2rem 0!important;color:var(--ms-ink)!important}.ic-result-card .ic-result-numeric{background:var(--ms-accent-soft)!important;color:var(--ms-accent)!important;padding:1rem 1.25rem!important;border-radius:var(--ms-radius)!important;border:1px solid var(--ms-accent-ring);font:600 1.3rem var(--ms-font-mono)!important;margin:0.9rem 0!important}.ic-result-card .ic-result-detail{background:transparent!important;border:none!important;padding:0.25rem 0 0!important;margin-top:1rem!important}.ic-result-card .ic-method-badge{display:inline-flex;align-items:center;gap:0.35rem;background:var(--ms-accent-soft)!important;color:var(--ms-accent)!important;padding:0.25rem 0.75rem!important;border-radius:var(--ms-radius-pill)!important;border:1px solid var(--ms-accent-ring);font:600 0.72rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.05em}.ic-result-card .ic-steps-btn{margin-top:1rem!important;padding:0.55rem 1.1rem!important;border:1px solid var(--ms-accent)!important;background:transparent!important;color:var(--ms-accent)!important;border-radius:var(--ms-radius-pill)!important;font:600 0.82rem var(--ms-font-sans)!important;transition:background var(--ms-transition),color var(--ms-transition)!important}.ic-result-card .ic-steps-btn:hover{background:var(--ms-accent)!important;color:#fff!important}.ic-result-card .ic-steps-btn.loading{opacity:0.65!important;pointer-events:none}.ic-result-card .ic-steps-container{margin-top:1.1rem!important;border:1px solid var(--ms-line)!important;border-radius:var(--ms-radius)!important;overflow:hidden;background:var(--ms-panel-bg-soft);text-align:left}.ic-result-card .ic-steps-header{padding:0.7rem 1.1rem!important;background:var(--ms-accent-soft)!important;border-bottom:1px solid var(--ms-line)!important;color:var(--ms-accent)!important;font:600 0.78rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.06em}.ic-result-card .ic-step{padding:0.9rem 1.1rem!important;border-bottom:1px solid var(--ms-line)!important;display:flex;gap:0.9rem;align-items:flex-start}.ic-result-card .ic-step:last-child{border-bottom:none!important}.ic-result-card .ic-step-num{width:26px!important;height:26px!important;background:var(--ms-accent)!important;color:#fff!important;font:700 0.72rem var(--ms-font-sans)!important;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.ic-result-card .ic-step-title{font:600 0.75rem var(--ms-font-sans)!important;color:var(--ms-ink-soft)!important;margin-bottom:0.35rem!important;text-transform:uppercase;letter-spacing:0.04em}.ic-result-card .ic-step-math{font-size:1.02rem!important;color:var(--ms-ink)!important}.ic-result-card .ic-step-math .katex-display{margin:0!important;display:inline-block;white-space:nowrap}.ic-result-card .ic-result-step{padding:0.85rem 0!important;border-bottom:1px solid var(--ms-line)!important}.ic-result-card .ic-result-step:last-child{border-bottom:none!important}.ic-result-card .ic-result-step-title{font:600 0.72rem var(--ms-font-sans)!important;color:var(--ms-muted)!important;text-transform:uppercase;letter-spacing:0.05em;margin-bottom:0.4rem!important}.ic-result-card .ic-error{background:#fef7ed!important;border:1px solid #fdba74!important;border-radius:var(--ms-radius)!important;padding:1.25rem!important;color:#9a3412!important;text-align:left}.ic-result-card .ic-error h4{font:600 0.92rem var(--ms-font-sans)!important;margin:0 0 0.5rem!important}.ic-result-card .ic-error ul{margin:0.5rem 0 0!important;font-size:0.85rem!important;line-height:1.65}[data-theme="dark"] .ic-result-card .ic-error{background:rgba(251,146,60,0.08)!important;border-color:rgba(251,146,60,0.3)!important;color:#fdba74!important}.ic-result-card .dc-result-math{padding:1.75rem 0 0;text-align:center}.ic-result-card .dc-result-math .katex-display{margin:0.5rem 0;overflow-x:auto;overflow-y:hidden}.ic-result-card .dc-result-label{font:600 0.7rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.08em;color:var(--ms-muted)!important;margin-bottom:0.45rem!important}.ic-result-card .dc-result-main{font-size:1.4rem!important;padding:1.2rem 0!important;color:var(--ms-ink)!important}.ic-result-card .dc-result-numeric{background:var(--ms-accent-soft)!important;color:var(--ms-accent)!important;padding:1rem 1.25rem!important;border-radius:var(--ms-radius)!important;border:1px solid var(--ms-accent-ring);font:600 1.3rem var(--ms-font-mono)!important;margin:0.9rem 0!important}.ic-result-card .dc-result-detail{background:transparent!important;border:none!important;padding:0.25rem 0 0!important;margin-top:1rem!important}.ic-result-card .dc-method-badge{display:inline-flex;align-items:center;gap:0.35rem;background:var(--ms-accent-soft)!important;color:var(--ms-accent)!important;padding:0.25rem 0.75rem!important;border-radius:var(--ms-radius-pill)!important;border:1px solid var(--ms-accent-ring);font:600 0.72rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.05em}.ic-result-card .dc-intermediate{background:var(--ms-panel-bg-soft)!important;border:1px solid var(--ms-line)!important;border-radius:var(--ms-radius)!important;padding:0.85rem 1rem!important;margin-top:0.75rem!important;text-align:center}.ic-result-card .dc-intermediate-label{font:600 0.68rem var(--ms-font-sans)!important;color:var(--ms-muted)!important;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:0.35rem!important}.ic-result-card .dc-steps-btn{margin-top:1rem!important;padding:0.55rem 1.1rem!important;border:1px solid var(--ms-accent)!important;background:transparent!important;color:var(--ms-accent)!important;border-radius:var(--ms-radius-pill)!important;font:600 0.82rem var(--ms-font-sans)!important;transition:background var(--ms-transition),color var(--ms-transition)!important}.ic-result-card .dc-steps-btn:hover{background:var(--ms-accent)!important;color:#fff!important}.ic-result-card .dc-steps-container{margin-top:1.1rem!important;border:1px solid var(--ms-line)!important;border-radius:var(--ms-radius)!important;overflow:hidden;background:var(--ms-panel-bg-soft);text-align:left}.ic-result-card .dc-steps-header{padding:0.7rem 1.1rem!important;background:var(--ms-accent-soft)!important;border-bottom:1px solid var(--ms-line)!important;color:var(--ms-accent)!important;font:600 0.78rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.06em}.ic-result-card .dc-step{padding:0.9rem 1.1rem!important;border-bottom:1px solid var(--ms-line)!important;display:flex;gap:0.9rem;align-items:flex-start}.ic-result-card .dc-step:last-child{border-bottom:none!important}.ic-result-card .dc-step-num{width:26px!important;height:26px!important;background:var(--ms-accent)!important;color:#fff!important;font:700 0.72rem var(--ms-font-sans)!important;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.ic-result-card .dc-step-title{font:600 0.75rem var(--ms-font-sans)!important;color:var(--ms-ink-soft)!important;margin-bottom:0.35rem!important;text-transform:uppercase;letter-spacing:0.04em}.ic-result-card .dc-step-math{font-size:1.02rem!important;color:var(--ms-ink)!important}.ic-result-card .dc-step-math .katex-display{margin:0!important;display:inline-block;white-space:nowrap}.ic-result-card .dc-error{background:#fef7ed!important;border:1px solid #fdba74!important;border-radius:var(--ms-radius)!important;padding:1.25rem!important;color:#9a3412!important;text-align:left}[data-theme="dark"] .ic-result-card .dc-error{background:rgba(251,146,60,0.08)!important;border-color:rgba(251,146,60,0.3)!important;color:#fdba74!important}.ic-hero .dc-order-toggle{display:inline-flex;gap:2px;background:var(--ms-panel-bg-soft);padding:3px;border-radius:var(--ms-radius-pill);border:1px solid var(--ms-line)}.ic-hero .dc-order-btn{padding:5px 12px;border:none;background:transparent;color:var(--ms-muted);font:600 12px var(--ms-font-sans);cursor:pointer;border-radius:var(--ms-radius-pill);transition:color var(--ms-transition),background var(--ms-transition)}.ic-hero .dc-order-btn:hover:not(.active){color:var(--ms-ink)}.ic-hero .dc-order-btn.active{background:var(--ms-panel-bg);color:var(--ms-accent);box-shadow:var(--ms-shadow-sm)}.ic-result-card .lc-result-math{padding:1.75rem 0 0;text-align:center}.ic-result-card .lc-result-math .katex-display{margin:0.5rem 0;overflow-x:auto;overflow-y:hidden}.ic-result-card .lc-result-label{font:600 0.7rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.08em;color:var(--ms-muted)!important;margin-bottom:0.45rem!important}.ic-result-card .lc-result-main{font-size:1.4rem!important;padding:1.2rem 0!important;color:var(--ms-ink)!important}.ic-result-card .lc-result-numeric{background:var(--ms-accent-soft)!important;color:var(--ms-accent)!important;padding:1rem 1.25rem!important;border-radius:var(--ms-radius)!important;border:1px solid var(--ms-accent-ring);font:600 1.3rem var(--ms-font-mono)!important;margin:0.9rem 0!important}.ic-result-card .lc-result-detail{background:transparent!important;border:none!important;padding:0.25rem 0 0!important;margin-top:1rem!important}.ic-result-card .lc-method-badge{display:inline-flex;align-items:center;gap:0.35rem;background:var(--ms-accent-soft)!important;color:var(--ms-accent)!important;padding:0.25rem 0.75rem!important;border-radius:var(--ms-radius-pill)!important;border:1px solid var(--ms-accent-ring);font:600 0.72rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.05em}.ic-result-card .lc-steps-btn{margin-top:1rem!important;padding:0.55rem 1.1rem!important;border:1px solid var(--ms-accent)!important;background:transparent!important;color:var(--ms-accent)!important;border-radius:var(--ms-radius-pill)!important;font:600 0.82rem var(--ms-font-sans)!important;transition:background var(--ms-transition),color var(--ms-transition)!important}.ic-result-card .lc-steps-btn:hover{background:var(--ms-accent)!important;color:#fff!important}.ic-result-card .lc-steps-container{margin-top:1.1rem!important;border:1px solid var(--ms-line)!important;border-radius:var(--ms-radius)!important;overflow:hidden;background:var(--ms-panel-bg-soft);text-align:left}.ic-result-card .lc-steps-header{padding:0.7rem 1.1rem!important;background:var(--ms-accent-soft)!important;border-bottom:1px solid var(--ms-line)!important;color:var(--ms-accent)!important;font:600 0.78rem var(--ms-font-sans)!important;text-transform:uppercase;letter-spacing:0.06em}.ic-result-card .lc-step{padding:0.9rem 1.1rem!important;border-bottom:1px solid var(--ms-line)!important;display:flex;gap:0.9rem;align-items:flex-start}.ic-result-card .lc-step:last-child{border-bottom:none!important}.ic-result-card .lc-step-num{width:26px!important;height:26px!important;background:var(--ms-accent)!important;color:#fff!important;font:700 0.72rem var(--ms-font-sans)!important;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.ic-result-card .lc-step-title{font:600 0.75rem var(--ms-font-sans)!important;color:var(--ms-ink-soft)!important;margin-bottom:0.35rem!important;text-transform:uppercase;letter-spacing:0.04em}.ic-result-card .lc-step-math{font-size:1.02rem!important;color:var(--ms-ink)!important}.ic-result-card .lc-step-math .katex-display{margin:0!important;display:inline-block;white-space:nowrap}.ic-result-card .lc-error{background:#fef7ed!important;border:1px solid #fdba74!important;border-radius:var(--ms-radius)!important;padding:1.25rem!important;color:#9a3412!important;text-align:left}[data-theme="dark"] .ic-result-card .lc-error{background:rgba(251,146,60,0.08)!important;border-color:rgba(251,146,60,0.3)!important;color:#fdba74!important}.ic-hero .lc-dir-toggle{display:inline-flex;gap:2px;background:var(--ms-panel-bg-soft);padding:3px;border-radius:var(--ms-radius-pill);border:1px solid var(--ms-line)}.ic-hero .lc-dir-btn{padding:5px 12px;border:none;background:transparent;color:var(--ms-muted);font:600 12px var(--ms-font-sans);cursor:pointer;border-radius:var(--ms-radius-pill);transition:color var(--ms-transition),background var(--ms-transition)}.ic-hero .lc-dir-btn:hover:not(.active){color:var(--ms-ink)}.ic-hero .lc-dir-btn.active{background:var(--ms-panel-bg);color:var(--ms-accent);box-shadow:var(--ms-shadow-sm)}.ic-result-card .ic-spinner{display:inline-block;width:14px;height:14px;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;animation:ms-spin 0.7s linear infinite;vertical-align:-2px;margin-right:0.35rem}.ic-empty-state{padding:3rem 1.5rem!important;text-align:center}.ic-empty-illustration{font-family:var(--ms-font-serif);font-size:5.5rem;line-height:1;color:var(--ms-accent);opacity:0.45;margin-bottom:0.5rem}.ic-empty-state h3{font:400 1.5rem var(--ms-font-serif);margin:0 0 0.5rem;color:var(--ms-ink)}.ic-empty-state p{max-width:420px;margin:0 auto;color:var(--ms-muted);font-size:0.92rem;line-height:1.6}.ic-empty-preview{display:inline-flex;align-items:center;gap:0.4rem;margin-top:1rem;padding:0.4rem 0.85rem;background:var(--ms-accent-softer);color:var(--ms-accent);border-radius:var(--ms-radius-pill);font:600 0.78rem var(--ms-font-sans)}.ms-faq{background:var(--ms-panel-bg);border:1px solid var(--ms-line);border-radius:var(--ms-radius);padding:0.5rem 1.25rem;box-shadow:var(--ms-shadow-sm)}.ms-faq-title{font:400 1.35rem var(--ms-font-serif);letter-spacing:-0.015em;color:var(--ms-ink);margin:0.75rem 0 0.25rem}.ms-faq-item{border-bottom:1px solid var(--ms-line)}.ms-faq-item:last-child{border-bottom:none}.ms-faq-q{width:100%;background:none;border:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 0;font:500 0.98rem var(--ms-font-sans);color:var(--ms-ink);text-align:left;transition:color var(--ms-transition)}.ms-faq-q:hover{color:var(--ms-accent)}.ms-faq-chevron{width:16px;height:16px;color:var(--ms-muted);transition:transform var(--ms-transition);flex-shrink:0}.ms-faq-a{max-height:0;overflow:hidden;transition:max-height 0.3s var(--ms-ease),padding 0.3s var(--ms-ease);color:var(--ms-ink-soft);line-height:1.65;font-size:0.93rem;padding:0}.ms-faq-item.open .ms-faq-a{max-height:700px;padding:0 0 1rem}.ms-faq-item.open .ms-faq-chevron{transform:rotate(180deg);color:var(--ms-accent)}.ic-learn{display:grid;grid-template-columns:repeat(3,1fr);gap:0.75rem;margin-top:0.5rem}@media (max-width:899px){.ic-learn{grid-template-columns:1fr}}.ic-learn-card{background:transparent;border:1px dashed var(--ms-line);border-radius:var(--ms-radius-sm);padding:0.85rem 1rem;display:flex;flex-direction:column;gap:0.4rem;transition:border-color var(--ms-transition),background var(--ms-transition)}.ic-learn-card:hover{border-color:var(--ms-line-strong);background:var(--ms-panel-bg-soft)}.ic-learn-method{font:600 0.68rem var(--ms-font-sans);color:var(--ms-muted);text-transform:uppercase;letter-spacing:0.08em}.ic-learn-formula{font:0.88rem var(--ms-font-mono);color:var(--ms-ink);padding:0;background:none;border:none;overflow-x:auto;white-space:nowrap}.ms-title{padding:0.25rem 0.25rem 0.5rem}.ms-crumbs{display:flex;align-items:center;gap:0.35rem;font:0.78rem var(--ms-font-sans);color:var(--ms-muted);margin-bottom:0.15rem}.ms-crumbs a{color:var(--ms-muted);text-decoration:none;transition:color var(--ms-transition)}.ms-crumbs a:hover{color:var(--ms-accent)}.ms-crumbs span[aria-current="page"]{color:var(--ms-ink);font-weight:500}.ms-title h1{margin:0;font:400 2rem var(--ms-font-serif);color:var(--ms-ink);letter-spacing:-0.02em;line-height:1.1}@media (max-width:899px){.ms-title h1{font-size:1.5rem}}@media (max-width:899px){.ic-hero{position:static!important;padding:1.15rem}.ic-hero .ic-mathfield{min-height:46px!important;font-size:1.05rem!important}.ic-result-card{min-height:340px}.ic-stack .ic-panel{padding:1rem}.ms-tool-header{padding:1.15rem}.ms-tool-header 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