.explore-view{padding:clamp(42px,5vw,72px) clamp(22px,4.5vw,66px) 76px;position:relative;overflow:hidden}.explore-view:before{z-index:0;opacity:.19;pointer-events:none;content:"";background-image:linear-gradient(#ffffff06 1px,#0000 1px),linear-gradient(90deg,#ffffff06 1px,#0000 1px);background-size:56px 56px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000,#0000 72%);mask-image:linear-gradient(#000,#0000 72%)}.explore-hero,.atlas-workspace,.learning-vector{z-index:1;width:min(1400px,100%);margin-inline:auto;position:relative}.explore-hero{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:60px;padding:18px 0 clamp(46px,6vw,82px);display:grid}.explore-hero__copy>p:first-child,.learning-vector header p{color:var(--color-accent);font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;align-items:center;gap:8px;margin:0 0 18px;font-size:.63rem;display:flex}.explore-hero h1{font-kerning:normal;letter-spacing:var(--display-letter-spacing);font-size:clamp(3.1rem,6vw,6.2rem);font-weight:510;line-height:var(--display-line-height);text-wrap:balance;margin:0}.explore-hero h1 span{color:#687483;font-weight:410}.explore-hero__intro{max-width:720px;color:var(--color-text-muted);margin:27px 0 0;font-size:clamp(.9rem,1.2vw,1.03rem);line-height:1.75}.atlas-readout{border:1px solid var(--color-border-soft);border-radius:var(--radius-md);background:#0c1116b3;grid-template-columns:repeat(2,minmax(128px,1fr));min-width:320px;margin:0;display:grid}.atlas-readout>div{gap:6px;padding:15px;display:grid}.atlas-readout>div:nth-child(2n){border-left:1px solid var(--color-border-soft)}.atlas-readout>div:nth-child(n+3){border-top:1px solid var(--color-border-soft)}.atlas-readout dt,.atlas-readout dd{font-family:var(--font-mono)}.atlas-readout dt{color:var(--color-text-dim);letter-spacing:.08em;text-transform:uppercase;font-size:.51rem}.atlas-readout dd{color:var(--color-text-muted);margin:0;font-size:.68rem}.atlas-workspace{grid-template-columns:290px minmax(0,1fr);align-items:start;gap:12px;display:grid}.atlas-nav,.topic-detail{border:1px solid var(--color-border);box-shadow:var(--shadow-panel);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0c1117db}.atlas-nav{top:calc(var(--topbar-height) + 18px);border-radius:18px;position:sticky;overflow:hidden}.atlas-nav__header{border-bottom:1px solid var(--color-border-soft);justify-content:space-between;align-items:center;gap:18px;padding:17px;display:flex}.atlas-nav__header>div{gap:4px;display:grid}.atlas-nav__header span,.atlas-nav__footer,.atlas-nav__count{font-family:var(--font-mono)}.atlas-nav__header>div span{color:var(--color-text-dim);letter-spacing:.1em;text-transform:uppercase;font-size:.52rem}.atlas-nav__header strong{font-size:.78rem;font-weight:560}.atlas-nav__header .atlas-nav__count{color:#4f5b68;font-size:1rem}.atlas-filter{border:1px solid var(--color-border-soft);color:var(--color-text-dim);background:#0a0f14;border-radius:9px;align-items:center;gap:8px;margin:12px;padding:0 10px;display:flex}.atlas-filter:focus-within{color:var(--color-accent);border-color:#78d6bd66}.atlas-filter input{width:100%;height:36px;color:var(--color-text);background:0 0;border:0;outline:0;font-size:.68rem}.atlas-filter input::placeholder{color:#56616e}.atlas-topic-list{gap:2px;margin:0;padding:2px 8px 10px;list-style:none;display:grid}.atlas-topic{width:100%;min-height:55px;color:var(--color-text-dim);cursor:pointer;text-align:left;background:0 0;border:1px solid #0000;border-radius:10px;grid-template-columns:22px 34px minmax(0,1fr) 8px;align-items:center;gap:8px;padding:5px 9px 5px 7px;transition:background .15s,border-color .15s,color .15s;display:grid;position:relative}.atlas-topic:hover{color:var(--color-text-muted);background:#ffffff06}.atlas-topic--active{background:var(--color-accent-soft);color:var(--color-accent);border-color:#78d6bd24}.atlas-topic__sequence{color:#46515e;font-family:var(--font-mono);font-size:.52rem}.atlas-topic__icon{border:1px solid var(--color-border-soft);background:#ffffff05;border-radius:8px;place-items:center;width:32px;height:32px;display:grid}.atlas-topic--active .atlas-topic__icon{background:#78d6bd17;border-color:#78d6bd33}.atlas-topic__copy{gap:4px;min-width:0;display:grid}.atlas-topic__copy strong{color:inherit;text-overflow:ellipsis;white-space:nowrap;font-size:.72rem;font-weight:540;overflow:hidden}.atlas-topic__copy .math-expression{color:#5f6a77;text-overflow:ellipsis;white-space:nowrap;font-size:.64rem;overflow:hidden}.atlas-topic__node{border:1px solid #46515e;border-radius:50%;width:6px;height:6px}.atlas-topic--active .atlas-topic__node{border-color:var(--color-accent);background:var(--color-accent);box-shadow:0 0 0 4px var(--color-accent-soft)}.atlas-nav__empty{color:var(--color-text-dim);text-align:center;margin:0;padding:22px 18px;font-size:.68rem;line-height:1.5}.atlas-nav__footer{border-top:1px solid var(--color-border-soft);color:#596572;letter-spacing:.04em;text-transform:uppercase;align-items:center;gap:8px;padding:13px 17px;font-size:.54rem;display:flex}.status-dot{background:var(--color-accent);width:6px;height:6px;box-shadow:0 0 0 4px var(--color-accent-soft);border-radius:50%}.topic-detail{border-radius:18px;animation:.26s both topic-detail-in;overflow:hidden}@keyframes topic-detail-in{0%{opacity:.7;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.topic-detail__header,.topic-detail__identity,.topic-detail__status{align-items:center;display:flex}.topic-detail__header{justify-content:space-between;gap:24px;padding:24px clamp(20px,3vw,34px) 18px}.topic-detail__identity{gap:13px}.topic-detail__icon{background:var(--color-accent-soft);width:48px;height:48px;color:var(--color-accent);border:1px solid #78d6bd2e;border-radius:13px;place-items:center;display:grid}.topic-detail__identity p{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.09em;text-transform:uppercase;margin:0 0 5px;font-size:.54rem}.topic-detail__identity h2{letter-spacing:-.035em;margin:0;font-size:clamp(1.45rem,2.2vw,2rem);font-weight:540}.topic-detail__status{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.05em;text-transform:uppercase;gap:7px;font-size:.55rem}.topic-detail__status>span{background:var(--color-accent);border-radius:50%;width:6px;height:6px}.topic-detail__summary{max-width:820px;color:var(--color-text-muted);margin:0;padding:0 clamp(20px,3vw,34px) 24px;font-size:.86rem;line-height:1.7}.equation-observatory{background:linear-gradient(120deg,#78d6bd14,#0000 44%),#0a0f14;border:1px solid #78d6bd24;border-radius:14px;grid-template-columns:minmax(0,1fr) minmax(220px,.6fr);margin:0 clamp(20px,3vw,34px);display:grid;overflow:hidden}.equation-observatory__main{padding:clamp(22px,3.5vw,38px)}.equation-observatory__open{width:max-content;color:var(--color-accent);align-items:center;gap:7px;margin-top:17px;font-size:.66rem;text-decoration:none;display:inline-flex}.equation-observatory__open:hover{color:var(--color-accent-strong)}.equation-observatory__label,.equation-observatory__dimension>span{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;font-size:.54rem}.equation-observatory__formula{color:var(--color-accent-strong);letter-spacing:.008em;margin:14px 0 9px;font-size:clamp(2.2rem,4.8vw,4rem);font-weight:400;display:block}.equation-observatory__main p{color:var(--color-text-muted);margin:0;font-size:.69rem}.equation-observatory__dimension{border-left:1px solid var(--color-border-soft);flex-direction:column;justify-content:center;gap:14px;padding:clamp(20px,3vw,30px);display:flex}.equation-observatory__dimension>span{align-items:center;gap:7px;display:flex}.equation-observatory__dimension code{color:var(--color-text-muted);font-family:var(--font-math);font-size:.78rem;line-height:1.7}.topic-concepts{padding:30px clamp(20px,3vw,34px)}.detail-section-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:15px;display:flex}.detail-section-heading>div>span,.detail-section-heading>span{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;font-size:.52rem}.detail-section-heading h3{margin:5px 0 0;font-size:1rem;font-weight:540}.concept-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;display:grid}.concept-node{border:1px solid var(--color-border-soft);background:#ffffff03;border-radius:11px;min-height:166px;padding:15px}.concept-node code{background:var(--color-accent-soft);min-height:26px;color:var(--color-accent);font-family:var(--font-mono);border:1px solid #78d6bd1f;border-radius:6px;align-items:center;margin-bottom:23px;padding:4px 7px;font-size:.62rem;display:inline-flex}.concept-node h4{margin:0 0 7px;font-size:.74rem;font-weight:560}.concept-node p{color:var(--color-text-dim);margin:0;font-size:.64rem;line-height:1.55}.topic-detail__lower-grid{grid-template-columns:1.15fr .85fr;gap:9px;padding:0 clamp(20px,3vw,34px) 30px;display:grid}.insight-panel,.investigation-panel{border:1px solid var(--color-border-soft);background:#ffffff04;border-radius:13px;padding:19px}.insight-panel{gap:13px;display:flex}.insight-panel__icon{background:var(--color-accent-soft);width:34px;height:34px;color:var(--color-accent);border-radius:9px;flex:none;place-items:center;display:grid}.insight-panel p,.investigation-panel__topline{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;margin:1px 0 5px;font-size:.51rem}.insight-panel h3,.investigation-panel h3{margin:0;font-size:.82rem;font-weight:560}.insight-panel blockquote{color:var(--color-text-muted);margin:13px 0 15px;font-size:.68rem;line-height:1.65}.insight-panel ul{flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;display:flex}.insight-panel li{border:1px solid var(--color-border-soft);color:var(--color-text-dim);border-radius:999px;align-items:center;gap:5px;padding:5px 8px;font-size:.56rem;display:flex}.investigation-panel{background:linear-gradient(140deg,#78d6bd0e,#0000 55%),#ffffff04}.investigation-panel__topline{justify-content:space-between;align-items:center;gap:14px;margin-bottom:14px;display:flex}.investigation-panel__topline span:first-child{color:var(--color-accent);align-items:center;gap:6px;display:flex}.investigation-panel>p{color:var(--color-text-muted);margin:12px 0 17px;font-size:.67rem;line-height:1.6}.investigation-panel__variables{flex-wrap:wrap;gap:6px;display:flex}.investigation-panel__variables span{border:1px solid var(--color-border-soft);color:var(--color-text-dim);font-family:var(--font-mono);background:#0a0f14;border-radius:6px;padding:5px 7px;font-size:.53rem}.topic-connections{border-top:1px solid var(--color-border-soft);justify-content:space-between;align-items:center;gap:20px;padding:17px clamp(20px,3vw,34px);display:flex}.topic-connections>div{color:var(--color-text-dim);align-items:center;gap:7px;font-size:.59rem;display:flex}.topic-connections nav{flex-wrap:wrap;justify-content:flex-end;gap:6px;display:flex}.topic-connections button{border:1px solid var(--color-border);color:var(--color-text-muted);cursor:pointer;background:#10161d;border-radius:8px;align-items:center;gap:7px;padding:7px 9px;font-size:.59rem;display:flex}.topic-connections button:hover{color:var(--color-accent);border-color:#78d6bd42}.learning-vector{border-top:1px solid var(--color-border-soft);margin-top:62px;padding-top:29px}.learning-vector>header{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:18px;display:flex}.learning-vector header p{margin-bottom:7px}.learning-vector h2{letter-spacing:-.035em;margin:0;font-size:clamp(1.35rem,2.2vw,2rem);font-weight:520}.learning-vector>header>span{color:var(--color-text-dim);font-size:.64rem}.learning-vector ol{grid-template-columns:repeat(7,minmax(0,1fr));gap:5px;margin:0;padding:0;list-style:none;display:grid}.learning-vector button{border:1px solid var(--color-border-soft);width:100%;min-height:145px;color:var(--color-text-dim);cursor:pointer;text-align:left;background:#ffffff03;border-radius:10px;grid-template-rows:auto auto auto;grid-template-columns:1fr auto;gap:8px;padding:13px;transition:border-color .15s,transform .15s;display:grid}.learning-vector button:hover{border-color:#78d6bd3d;transform:translateY(-2px)}.learning-vector button>span{font-family:var(--font-mono);grid-column:1;font-size:.52rem}.learning-vector button strong{color:var(--color-text-muted);grid-column:1/-1;align-self:end;font-size:.68rem;font-weight:540}.learning-vector button .math-expression{text-overflow:ellipsis;white-space:nowrap;grid-column:1;font-size:.59rem;overflow:hidden}.learning-vector button svg{grid-area:1/2}.learning-vector>footer{color:var(--color-text-dim);align-items:center;gap:8px;margin-top:10px;font-size:.59rem;line-height:1.5;display:flex}@media (width<=1240px){.concept-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-vector ol{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width<=980px){.explore-hero{grid-template-columns:1fr;gap:32px}.atlas-readout{width:min(100%,620px)}.atlas-workspace{grid-template-columns:1fr}.atlas-nav{position:static}.atlas-topic-list{grid-template-columns:repeat(2,minmax(0,1fr))}.atlas-nav__footer{display:none}#selected-topic{scroll-margin-top:calc(var(--topbar-height) + 12px)}}@media (width<=720px){.explore-view{padding:42px 16px 56px}.explore-hero h1{font-size:clamp(2.8rem,14vw,4.5rem)}.atlas-topic-list{grid-template-columns:1fr}.topic-detail__header,.topic-connections,.learning-vector>header{align-items:flex-start}.topic-detail__status{display:none}.equation-observatory,.topic-detail__lower-grid{grid-template-columns:1fr}.equation-observatory__dimension{border-top:1px solid var(--color-border-soft);border-left:0}.concept-grid{grid-template-columns:1fr}.concept-node{min-height:0}.concept-node code{margin-bottom:14px}.topic-connections,.learning-vector>header{flex-direction:column}.topic-connections nav{justify-content:flex-start}.learning-vector ol{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=430px){.atlas-readout{min-width:0}.topic-detail__header{padding-inline:17px}.topic-detail__summary,.topic-concepts,.topic-detail__lower-grid,.topic-connections{padding-left:17px;padding-right:17px}.equation-observatory{margin-inline:17px}}@media (prefers-reduced-motion:reduce){.topic-detail{animation:none}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;clip-path:inset(50%);width:1px;height:1px;position:absolute;overflow:hidden}.home-view{padding:clamp(40px,5.5vw,76px) clamp(24px,5vw,72px) 72px;position:relative;overflow:hidden}.home-view:before{z-index:0;opacity:.22;pointer-events:none;content:"";background-image:linear-gradient(#ffffff06 1px,#0000 1px),linear-gradient(90deg,#ffffff06 1px,#0000 1px);background-size:58px 58px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000,#0000 58%);mask-image:linear-gradient(#000,#0000 58%)}.home-hero,.topic-section{z-index:1;width:min(1380px,100%);margin-inline:auto;position:relative}.home-hero{min-height:min(690px, calc(100vh - var(--topbar-height) - 70px));grid-template-columns:minmax(420px,.92fr) minmax(460px,1.08fr);align-items:center;gap:clamp(50px,7vw,120px);display:grid}.home-hero__copy{z-index:4;max-width:700px;position:relative}.home-kicker{color:var(--color-accent);font-family:var(--font-mono);letter-spacing:.13em;text-transform:uppercase;align-items:center;gap:8px;margin:0 0 23px;font-size:.66rem;display:flex}.home-hero h1{font-kerning:normal;letter-spacing:var(--display-letter-spacing);font-size:clamp(3.25rem,6.2vw,6.4rem);font-weight:510;line-height:var(--display-line-height);text-wrap:balance;margin:0}.home-hero h1 span{color:#697483;font-weight:410}.home-hero__intro{max-width:590px;color:var(--color-text-muted);margin:27px 0 0;font-size:clamp(.94rem,1.35vw,1.08rem);line-height:1.75}.physics-search{background:#0e1319f0;border:1px solid #2b3541;border-radius:14px;align-items:center;gap:12px;max-width:630px;height:58px;margin-top:38px;padding:0 13px 0 17px;transition:border-color .16s,box-shadow .16s;display:flex;position:relative;box-shadow:0 16px 42px #00000038}.physics-search:focus-within{border-color:#78d6bd8c;box-shadow:0 0 0 4px #78d6bd12,0 16px 42px #0000003d}.physics-search__icon{color:var(--color-accent);flex:none}.physics-search input{min-width:0;height:100%;color:var(--color-text);background:0 0;border:0;outline:0;flex:1;font-size:.92rem}.physics-search input::placeholder{color:#66717f}.physics-search input::-webkit-search-cancel-button{filter:invert(.7)}.physics-search>kbd{color:#74808e;font-family:var(--font-sans);background:#171d25;border:1px solid #2a3440;border-radius:6px;padding:5px 7px;font-size:.62rem}.search-results{z-index:30;border:1px solid var(--color-border);background:#0d1218;border-radius:14px;padding:6px;position:absolute;top:calc(100% + 9px);left:0;right:0;overflow:hidden;box-shadow:0 24px 70px #00000080}.search-results button{width:100%;color:var(--color-text-muted);cursor:pointer;text-align:left;background:0 0;border:0;border-radius:9px;grid-template-columns:70px minmax(0,1fr) auto 18px;align-items:center;gap:12px;padding:10px;display:grid}.search-results button:hover,.search-results button:focus-visible{background:var(--color-accent-soft)}.search-results__formula{color:var(--color-accent-strong);font-size:.82rem}.search-results__copy{gap:3px;min-width:0;display:grid}.search-results__copy strong{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;font-size:.78rem;font-weight:560;overflow:hidden}.search-results__copy small{color:var(--color-text-dim);text-overflow:ellipsis;white-space:nowrap;font-size:.66rem;overflow:hidden}.search-results__topic{border:1px solid var(--color-border-soft);color:var(--color-text-dim);font-family:var(--font-mono);text-transform:uppercase;border-radius:999px;padding:4px 7px;font-size:.54rem}.search-results>p{color:var(--color-text-dim);text-align:center;margin:0;padding:18px;font-size:.76rem}.search-examples{color:var(--color-text-dim);flex-wrap:wrap;align-items:center;gap:7px;margin-top:12px;font-size:.64rem;display:flex}.search-examples span{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;margin-right:3px}.search-examples button{border:1px solid var(--color-border-soft);color:var(--color-text-dim);cursor:pointer;background:#ffffff05;border-radius:999px;padding:5px 9px;font-size:.62rem;transition:color .15s,border-color .15s}.search-examples button:hover{color:var(--color-accent);border-color:#78d6bd4d}.projectile-preview{border:1px solid var(--color-border);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0d1218db;border-radius:22px;padding:18px;position:relative;box-shadow:0 30px 90px #0000004d}.projectile-preview:before{z-index:-1;pointer-events:none;content:"";background:radial-gradient(circle,#78d6bd17,#0000 66%);border-radius:50%;position:absolute;inset:-70px}.projectile-preview__header{justify-content:space-between;align-items:center;gap:18px;padding:3px 2px 15px;display:flex}.projectile-preview__header p{color:var(--color-accent);font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;margin:0 0 5px;font-size:.56rem}.projectile-preview__header h2{letter-spacing:-.01em;margin:0;font-size:.92rem;font-weight:560}.instrument-reset{border:1px solid var(--color-border);color:var(--color-text-dim);cursor:pointer;background:#121820;border-radius:8px;align-items:center;gap:6px;padding:7px 9px;font-size:.64rem;display:flex}.instrument-reset:hover{color:var(--color-text)}.trajectory-stage{border:1px solid var(--color-border-soft);background:#090d12;border-radius:13px;position:relative;overflow:hidden}.trajectory-stage svg{color:#72849230;width:100%;height:auto;display:block}.trajectory-stage__ground{stroke:#b7c8d14d;stroke-width:.25px}.trajectory-stage__path-shadow{fill:none;stroke:#78d6bd1c;stroke-width:1.8px}.trajectory-stage__path{fill:none;stroke:url(#trajectory-fade);stroke-dasharray:1.2 1.2;stroke-linecap:round;stroke-width:.42px}.trajectory-stage__vector{stroke:#d3dbe1;stroke-linecap:round;stroke-width:.45px}.trajectory-stage__origin{fill:#0b1116;stroke:var(--color-accent);stroke-width:.35px}.trajectory-stage__projectile{fill:var(--color-accent-strong);stroke:#defff7cc;stroke-width:.25px;filter:drop-shadow(0 0 2px #78d6bdd9)}.trajectory-stage__label{fill:#596573;font-family:var(--font-mono);font-size:1.45px}.assumption-label{color:#5f6b77;font-family:var(--font-mono);background:#070b0fbf;border:1px solid #ffffff0d;border-radius:5px;padding:4px 6px;font-size:.48rem;position:absolute;top:9px;right:10px}.instrument-controls{grid-template-columns:1fr 1fr;gap:22px;padding:19px 2px 17px;display:grid}.instrument-controls label{color:var(--color-text-dim);gap:10px;font-size:.64rem;display:grid}.instrument-controls label>span{justify-content:space-between;gap:12px;display:flex}.instrument-controls output{color:var(--color-text);font-family:var(--font-mono);font-size:.63rem}.instrument-controls input[type=range]{appearance:none;width:100%;height:3px;accent-color:var(--color-accent);cursor:pointer;background:#29323d;border-radius:99px;margin:4px 0}.instrument-controls input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--color-accent);border:3px solid #0d1218;border-radius:50%;width:14px;height:14px;box-shadow:0 0 0 1px #78d6bd8c}.instrument-metrics{border-top:1px solid var(--color-border-soft);grid-template-columns:repeat(3,1fr);margin:0;padding-top:15px;display:grid}.instrument-metrics div{gap:5px;padding:0 12px;display:grid}.instrument-metrics div+div{border-left:1px solid var(--color-border-soft)}.instrument-metrics dt{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.07em;text-transform:uppercase;font-size:.53rem}.instrument-metrics dd{color:var(--color-text);font-family:var(--font-mono);margin:0;font-size:.75rem}.topic-section{border-top:1px solid var(--color-border-soft);margin-top:clamp(56px,7vw,100px);padding-top:32px}.section-heading{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:20px;display:flex}.section-heading p{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.11em;text-transform:uppercase;margin:0 0 7px;font-size:.59rem}.section-heading h2{letter-spacing:-.03em;margin:0;font-size:clamp(1.4rem,2.1vw,2rem);font-weight:520}.section-heading>a{color:var(--color-text-muted);align-items:center;gap:8px;font-size:.72rem;text-decoration:none;display:flex}.section-heading>a:hover{color:var(--color-accent)}.topic-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.topic-card{border:1px solid var(--color-border-soft);border-radius:var(--radius-md);min-height:220px;color:inherit;background:#0e12189e;flex-direction:column;justify-content:space-between;gap:25px;padding:17px;text-decoration:none;transition:background .17s,border-color .17s,transform .17s;display:flex}a.topic-card:hover{background:#12191fe0;border-color:#78d6bd47;transform:translateY(-3px)}.topic-card__topline{justify-content:space-between;align-items:center;display:flex}.topic-card__icon{background:var(--color-accent-soft);width:38px;height:38px;color:var(--color-accent);border:1px solid #78d6bd21;border-radius:10px;place-items:center;display:grid}.topic-card__arrow{color:var(--color-text-dim);transition:color .15s,transform .15s}a.topic-card:hover .topic-card__arrow{color:var(--color-accent);transform:translate(3px)}.topic-card h3{margin:0 0 8px;font-size:.96rem;font-weight:560}.topic-card p{color:var(--color-text-dim);margin:0;font-size:.71rem;line-height:1.55}.topic-card__formula,.topic-card__planned-formula{color:var(--color-text-muted);font-family:var(--font-math);font-size:.78rem}.topic-card__planned-formula{font-style:italic}.topic-card--planned{opacity:.48}.planned-label{border:1px solid var(--color-border);color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.05em;text-transform:uppercase;border-radius:999px;padding:4px 7px;font-size:.5rem}@media (width<=1240px){.home-hero{grid-template-columns:minmax(370px,.88fr) minmax(410px,1.12fr);gap:46px}.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=1020px){.home-hero{grid-template-columns:1fr;min-height:0}.home-hero__copy{max-width:760px}.projectile-preview{width:min(100%,740px)}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=620px){.home-view{padding:46px 17px 50px}.home-hero{gap:46px}.home-hero h1{font-size:clamp(2.8rem,14vw,4.4rem)}.home-hero__intro{font-size:.9rem}.physics-search{height:54px;margin-top:30px}.physics-search>kbd,.search-results__topic,.search-results__copy small{display:none}.search-results button{grid-template-columns:62px minmax(0,1fr) 16px}.projectile-preview{border-radius:16px;padding:12px}.assumption-label{display:none}.instrument-controls{grid-template-columns:1fr;gap:16px}.instrument-metrics div{padding:0 8px}.instrument-metrics dd{font-size:.66rem}.section-heading{align-items:flex-start}.section-heading>a{font-size:0}.section-heading>a svg{width:20px;height:20px}.topic-grid{grid-template-columns:1fr}.topic-card{min-height:190px}}:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--color-bg:#0b1016;--color-bg-elevated:#111820;--color-panel:#151e27;--color-panel-strong:#1a2530;--color-border:#2b3744;--color-border-soft:#ffffff12;--color-text:#f3f6f8;--color-text-muted:#9aa7b6;--color-text-dim:#6e7b8b;--color-accent:#91dec9;--color-accent-strong:#b8f3e3;--color-accent-soft:#91dec921;--font-sans:Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-math:"STIX Two Math", "Cambria Math", "Times New Roman", Times, serif;--font-mono:"SFMono-Regular", "Cascadia Code", "Roboto Mono", monospace;--display-letter-spacing:-.026em;--display-line-height:1.01;--sidebar-width:264px;--topbar-height:68px;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--shadow-panel:0 20px 70px #00000047}*{box-sizing:border-box}html{background:var(--color-bg);font-family:var(--font-sans);color:var(--color-text);min-width:320px}body{background:var(--color-bg);-webkit-font-smoothing:antialiased;min-width:320px;min-height:100vh;margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}a{color:inherit}:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px}::selection{color:#fff;background:#78d6bd3d}.skip-link{z-index:200;border-radius:var(--radius-sm);background:var(--color-accent);color:#07100d;padding:10px 14px;font-size:.86rem;font-weight:700;text-decoration:none;transition:top .16s;position:fixed;top:-80px;left:16px}.skip-link:focus{top:16px}.app-shell{background:radial-gradient(circle at 75% 18%, #4d776e17, transparent 28rem), var(--color-bg);min-height:100vh}.desktop-sidebar{width:var(--sidebar-width);z-index:20;border-right:1px solid var(--color-border-soft);background:#090c10f5;position:fixed;inset:0 auto 0 0}.sidebar{flex-direction:column;height:100%;padding:20px 16px 16px;display:flex}.brand{align-items:center;gap:11px;padding:2px 5px 22px;text-decoration:none;display:flex}.lab-mark rect{fill:#111820;stroke:#2b3a3d}.lab-mark circle{fill:var(--color-accent)}.lab-mark ellipse{fill:none;stroke:#87cdbd;stroke-width:1px;opacity:.65}.brand__copy{gap:3px;display:grid}.brand__copy strong{letter-spacing:.045em;text-transform:uppercase;font-size:.88rem}.brand__copy small{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;font-size:.61rem}.nav-label{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;margin:14px 10px 8px;font-size:.61rem}.primary-nav ul{gap:3px;margin:0;padding:0;list-style:none;display:grid}.nav-item{min-height:43px;color:var(--color-text-muted);border:1px solid #0000;border-radius:10px;grid-template-columns:20px 1fr auto;align-items:center;gap:10px;padding:0 11px;font-size:.84rem;text-decoration:none;transition:background .15s,border-color .15s,color .15s;display:grid}.nav-item:hover{color:var(--color-text);background:#ffffff06}.nav-item--active{background:var(--color-accent-soft);color:var(--color-accent-strong);border-color:#78d6bd26}.nav-item__chevron{opacity:0;transition:opacity .15s,transform .15s}.nav-item:hover .nav-item__chevron,.nav-item--active .nav-item__chevron{opacity:.72;transform:translate(2px)}.sidebar__spacer{flex:1}.system-card{border:1px solid var(--color-border-soft);border-radius:var(--radius-md);background:#0d1218;padding:13px}.system-card__heading{color:var(--color-text-muted);letter-spacing:.06em;text-transform:uppercase;align-items:center;gap:7px;margin-bottom:13px;font-size:.71rem;display:flex}.system-card__reading{font-family:var(--font-mono);justify-content:space-between;align-items:center;gap:12px;padding:6px 0;font-size:.65rem;display:flex}.system-card__reading span{color:var(--color-text-dim)}.system-card__reading strong{color:var(--color-text-muted);font-weight:500}.system-card__reading .status-online{color:var(--color-accent)}.build-label{color:#46505d;font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;margin:13px 4px 0;font-size:.58rem}.topbar{inset:0 0 auto var(--sidebar-width);z-index:15;min-height:var(--topbar-height);border-bottom:1px solid var(--color-border-soft);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#080b0fd1;justify-content:space-between;align-items:center;padding:0 26px;display:flex;position:fixed}.topbar__leading,.topbar__actions,.breadcrumb{align-items:center;display:flex}.breadcrumb{color:var(--color-text-dim);gap:9px;font-size:.75rem}.breadcrumb strong{color:var(--color-text-muted);font-weight:550}.breadcrumb__separator{color:#39414d}.topbar__actions{gap:12px}.search-trigger{border:1px solid var(--color-border);min-width:230px;height:36px;color:var(--color-text-dim);cursor:pointer;text-align:left;background:#0d1117;border-radius:9px;align-items:center;gap:8px;padding:0 8px 0 11px;display:flex}.search-trigger span{flex:1;font-size:.75rem}.search-trigger kbd{color:#717c89;font-family:var(--font-sans);background:#151b23;border:1px solid #28313d;border-radius:5px;padding:3px 5px;font-size:.62rem}.scope-badge{border:1px solid var(--color-border-soft);height:36px;color:var(--color-text-muted);font-family:var(--font-mono);letter-spacing:.02em;border-radius:9px;align-items:center;gap:8px;padding:0 11px;font-size:.65rem;display:flex}.scope-badge__pulse{background:var(--color-accent);width:6px;height:6px;box-shadow:0 0 0 4px var(--color-accent-soft);border-radius:50%}.icon-button{border:1px solid var(--color-border);background:var(--color-bg-elevated);width:38px;height:38px;color:var(--color-text-muted);cursor:pointer;border-radius:9px;place-items:center;display:grid}.mobile-menu-button{margin-right:12px;display:none}.main-workspace{min-height:100vh;margin-left:var(--sidebar-width);padding-top:var(--topbar-height)}.foundation-view{min-height:calc(100vh - var(--topbar-height));grid-template-columns:minmax(0,1fr) 290px;align-items:end;gap:clamp(32px,7vw,110px);padding:clamp(48px,8vw,118px) clamp(28px,6vw,92px) clamp(42px,6vw,76px);display:grid;position:relative;overflow:hidden}.foundation-view__grid{opacity:.27;background-image:linear-gradient(#ffffff07 1px,#0000 1px),linear-gradient(90deg,#ffffff07 1px,#0000 1px);background-size:52px 52px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#0000 3%,#000 28% 75%,#0000 100%);mask-image:linear-gradient(#0000 3%,#000 28% 75%,#0000 100%)}.foundation-view__content{z-index:2;max-width:760px;position:relative}.eyebrow{color:var(--color-accent);font-family:var(--font-mono);letter-spacing:.13em;text-transform:uppercase;align-items:center;gap:8px;margin:0 0 20px;font-size:.68rem;display:flex}.foundation-view h1{font-kerning:normal;max-width:740px;letter-spacing:var(--display-letter-spacing);font-size:clamp(2.6rem,6vw,5.9rem);font-weight:520;line-height:var(--display-line-height);text-wrap:balance;margin:0}.foundation-view h1 span{color:#687381;font-weight:420}.foundation-view__description{max-width:620px;color:var(--color-text-muted);margin:28px 0 0;font-size:clamp(.92rem,1.2vw,1.05rem);line-height:1.75}.foundation-readout{border-top:1px solid var(--color-border);max-width:660px;color:var(--color-text-dim);grid-template-columns:max-content 24px max-content 1fr;align-items:center;gap:20px;margin-top:42px;padding-top:20px;display:grid}.foundation-readout>div{gap:6px;display:grid}.foundation-readout span{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;font-size:.58rem}.foundation-readout strong{color:var(--color-text-muted);font-family:var(--font-mono);font-size:.72rem;font-weight:500}.foundation-readout__state{text-align:right;justify-self:end}.foundation-readout__state strong{color:var(--color-accent)}.telemetry-card{z-index:2;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-panel);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0d1117d1;align-self:end;padding:19px;position:relative}.telemetry-card__header{color:var(--color-text-muted);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;align-items:center;margin-bottom:18px;font-size:.68rem;display:flex}.telemetry-card dl{margin:0}.telemetry-card dl>div{border-top:1px solid var(--color-border-soft);font-family:var(--font-mono);justify-content:space-between;gap:16px;padding:11px 0;font-size:.65rem;display:flex}.telemetry-card dt{color:var(--color-text-dim)}.telemetry-card dd{color:var(--color-text-muted);margin:0}.telemetry-card__signal{background:#78d6bd09;border-radius:8px;align-items:flex-end;gap:4px;height:48px;margin-top:15px;padding:8px;display:flex}.telemetry-card__signal span{background:#78d6bd7a;border-radius:2px 2px 0 0;flex:1;min-height:3px}.orbital-instrument{aspect-ratio:1;opacity:.28;pointer-events:none;width:clamp(280px,36vw,560px);position:absolute;top:9%;right:5%}.orbital-instrument__axis,.orbital-instrument__ring,.orbital-instrument__body,.orbital-instrument__satellite{display:block;position:absolute}.orbital-instrument__axis{background:linear-gradient(90deg,#0000,#78d6bd80,#0000);width:84%;height:1px;top:50%;left:8%}.orbital-instrument__axis--y{transform:rotate(90deg)}.orbital-instrument__ring{border:1px solid #78d6bd47;border-radius:50%;inset:14%}.orbital-instrument__ring:before,.orbital-instrument__ring:after{background:var(--color-accent);content:"";border-radius:50%;width:5px;height:5px;position:absolute}.orbital-instrument__ring:before{top:10%;right:19%}.orbital-instrument__ring:after{bottom:8%;left:23%}.orbital-instrument__ring--two{border-style:dashed;inset:30%;transform:rotate(24deg)}.orbital-instrument__body{border:1px solid var(--color-accent);background:var(--color-accent-soft);border-radius:50%;width:20px;height:20px;top:calc(50% - 10px);left:calc(50% - 10px);box-shadow:0 0 38px #78d6bd40}.orbital-instrument__satellite{border:1px solid var(--color-accent);width:8px;height:8px;top:23%;left:69%;transform:rotate(45deg)}.mobile-navigation{display:none}@media (width<=1020px){:root{--sidebar-width:224px}.foundation-view{grid-template-columns:1fr}.telemetry-card{width:min(100%,620px)}}@media (width<=760px){.desktop-sidebar{display:none}.topbar{padding:0 16px;left:0}.mobile-menu-button{display:grid}.main-workspace{margin-left:0}.search-trigger{justify-content:center;width:38px;min-width:auto;padding:0}.search-trigger span,.search-trigger kbd{display:none}.mobile-navigation{z-index:100;display:block;position:fixed;inset:0}.mobile-navigation__backdrop{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#000000a3;border:0;width:100%;position:absolute;inset:0}.mobile-navigation__panel{border-right:1px solid var(--color-border);background:#090d12;width:min(88vw,300px);position:absolute;inset:0 auto 0 0;box-shadow:28px 0 70px #0000005c}.mobile-navigation__close{z-index:2;position:absolute;top:19px;right:15px}.mobile-navigation__panel .brand{padding-right:44px}.foundation-view{min-height:calc(100vh - var(--topbar-height));align-items:center;padding:60px 20px 34px}.foundation-view h1{font-size:clamp(2.65rem,13vw,4.8rem)}.foundation-readout{grid-template-columns:1fr 18px 1fr;gap:12px}.foundation-readout__state{display:none!important}.telemetry-card{margin-top:12px}}@media (width<=470px){.breadcrumb>span:first-child,.breadcrumb__separator,.scope-badge{display:none}.foundation-view{gap:40px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.route-announcer{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:fixed;overflow:hidden}.math-expression{color:inherit;font-family:var(--font-math);font-kerning:normal;font-variant-numeric:lining-nums;letter-spacing:.005em;white-space:nowrap;align-items:baseline;gap:.13em;display:inline-flex}.math-expression__variable{color:inherit;font:inherit;border-radius:.16em;font-style:italic;transition:background .14s,color .14s,opacity .14s}.math-expression__variable--active{color:var(--color-accent-strong);background:#78d6bd24}.math-expression__variable--muted{opacity:.34}.math-expression__variable[tabindex="0"]{cursor:crosshair;outline-offset:.08em}.math-expression__operator,.math-expression__number,.math-expression__grouping,.math-expression__function{color:inherit;font-style:normal}.math-expression__grouping{margin-inline:-.07em}.formula-library{width:min(100%,1560px);margin:0 auto;padding:clamp(42px,5vw,76px) clamp(22px,4vw,64px) 80px}.formula-library__hero{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:48px;padding-bottom:34px;display:grid}.formula-library__hero h1{max-width:820px;letter-spacing:var(--display-letter-spacing);font-size:clamp(2.5rem,5vw,5.4rem);font-weight:520;line-height:var(--display-line-height);text-wrap:balance;margin:0}.formula-library__hero>div>p:last-child{max-width:690px;color:var(--color-text-muted);margin:23px 0 0;font-size:.98rem;line-height:1.7}.formula-library__telemetry{border:1px solid var(--color-border);border-radius:var(--radius-md);background:#0d1117b8;grid-template-columns:repeat(3,minmax(88px,1fr));min-width:330px;margin:0;display:grid}.formula-library__telemetry div{gap:8px;padding:15px 17px;display:grid}.formula-library__telemetry div+div{border-left:1px solid var(--color-border-soft)}.formula-library__telemetry dt,.formula-library__telemetry dd{font-family:var(--font-mono);margin:0}.formula-library__telemetry dt{color:var(--color-text-dim);letter-spacing:.08em;text-transform:uppercase;font-size:.55rem;line-height:1.35}.formula-library__telemetry dd{color:var(--color-accent);font-size:1rem}.library-instrument{top:calc(var(--topbar-height) + 14px);z-index:10;border:1px solid var(--color-border);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0d1117eb;padding:14px;position:sticky;box-shadow:0 20px 54px #0000003d}.library-search{min-height:54px;color:var(--color-text-dim);background:#0a0e13;border:1px solid #2a3440;border-radius:12px;grid-template-columns:22px minmax(0,1fr) 32px;align-items:center;gap:10px;padding:0 11px 0 17px;transition:border-color .15s,box-shadow .15s;display:grid}.library-search:focus-within{border-color:#78d6bd9e;box-shadow:0 0 0 4px #78d6bd12}.library-search input{min-width:0;color:var(--color-text);background:0 0;border:0;outline:0;font-size:.95rem}.library-search input::placeholder{color:#596473}.library-search__clear{width:30px;height:30px;color:var(--color-text-dim);cursor:pointer;background:0 0;border:0;border-radius:7px;place-items:center;display:grid}.library-search__clear:hover{color:var(--color-text);background:#ffffff0d}.library-examples{flex-wrap:wrap;align-items:center;gap:7px;padding:10px 5px 13px;display:flex}.library-examples span{color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.09em;text-transform:uppercase;margin-right:3px;font-size:.57rem}.library-examples button,.library-topics button{border:1px solid var(--color-border-soft);color:var(--color-text-muted);cursor:pointer;background:#ffffff05;border-radius:999px;font-size:.67rem;transition:background .14s,border-color .14s,color .14s}.library-examples button{font-family:var(--font-mono);padding:5px 9px}.library-examples button:hover,.library-topics button:hover{color:var(--color-accent-strong);border-color:#78d6bd42}.library-controls{border-top:1px solid var(--color-border-soft);justify-content:space-between;align-items:center;gap:18px;padding:13px 3px 0;display:flex}.library-topics{flex-wrap:wrap;gap:6px;display:flex}.library-topics button{min-height:31px;padding:0 11px}.library-topics button.is-active{background:var(--color-accent-soft);color:var(--color-accent-strong);border-color:#78d6bd45}.library-selects{flex:none;align-items:center;gap:8px;display:flex}.library-selects label{border:1px solid var(--color-border-soft);min-height:34px;color:var(--color-text-dim);text-transform:uppercase;border-radius:8px;align-items:center;gap:7px;padding:0 8px;font-size:.63rem;display:flex}.library-selects select{color:var(--color-text-muted);font:.67rem var(--font-sans);background:#0f141a;border:0;outline:0}.library-results-heading{min-height:70px;color:var(--color-text-dim);font-family:var(--font-mono);justify-content:space-between;align-items:center;gap:20px;padding:0 3px;font-size:.64rem;display:flex}.library-results-heading p{margin:0}.library-results-heading strong{color:var(--color-text);font-size:.78rem;font-weight:500}.formula-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.formula-card{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:linear-gradient(145deg,#78d6bd09,#0000 38%),#0d1117d1;flex-direction:column;min-width:0;min-height:430px;transition:border-color .16s,transform .16s,box-shadow .16s;display:flex;overflow:hidden}.formula-card:hover{border-color:#78d6bd38;transform:translateY(-2px);box-shadow:0 22px 56px #0003}.formula-card__topline{border-bottom:1px solid var(--color-border-soft);min-height:45px;color:var(--color-text-dim);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;align-items:center;padding:0 20px;font-size:.59rem;display:flex}.difficulty{color:#7d8794}.difficulty--1{color:var(--color-accent)}.difficulty--2{color:#b6bd8b}.difficulty--3,.difficulty--4,.difficulty--5{color:#c6a47d}.formula-card__equation-link{border-bottom:1px solid var(--color-border-soft);min-height:123px;color:var(--color-accent-strong);align-items:center;padding:25px 22px;text-decoration:none;display:flex;overflow-x:auto}.formula-card__equation{font-size:clamp(2.1rem,3.2vw,3.55rem)}.formula-card__copy{padding:21px 22px 12px}.formula-card__copy h2{margin:0;font-size:1.02rem;font-weight:580}.formula-card__copy h2 a{text-decoration:none}.formula-card__copy h2 a:hover{color:var(--color-accent-strong)}.formula-card__copy p{min-height:46px;color:var(--color-text-muted);margin:9px 0 0;font-size:.76rem;line-height:1.55}.formula-card__variables{flex-wrap:wrap;gap:6px;padding:0 22px 20px;display:flex}.variable-chip{border:1px solid var(--color-border-soft);min-height:31px;color:var(--color-text-muted);cursor:crosshair;background:#ffffff05;border-radius:8px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:7px;padding:0 8px;transition:background .14s,border-color .14s,color .14s;display:grid}.variable-chip:hover,.variable-chip--active{background:var(--color-accent-soft);color:var(--color-text);border-color:#78d6bd47}.variable-chip var{color:var(--color-accent-strong);font-family:var(--font-math);font-size:.92rem}.variable-chip span{text-overflow:ellipsis;white-space:nowrap;font-size:.62rem;overflow:hidden}.variable-chip small{color:var(--color-text-dim);font-family:var(--font-mono);font-size:.53rem}.formula-card__footer{border-top:1px solid var(--color-border-soft);justify-content:space-between;align-items:center;gap:12px;min-height:53px;margin-top:auto;padding:0 20px;display:flex}.formula-card__capabilities,.formula-card__capabilities span,.formula-card__open{align-items:center;display:flex}.formula-card__capabilities{color:var(--color-text-dim);font-family:var(--font-mono);flex-wrap:wrap;gap:10px;font-size:.53rem}.formula-card__capabilities span{gap:4px}.formula-card__open{color:var(--color-accent);flex:none;gap:6px;font-size:.67rem;text-decoration:none}.library-empty{border-radius:var(--radius-lg);min-height:330px;color:var(--color-text-dim);text-align:center;border:1px dashed #2b3440;place-content:center;justify-items:center;display:grid}.library-empty h2{color:var(--color-text);margin:17px 0 0;font-size:1.05rem}.library-empty p{max-width:470px;color:var(--color-text-muted);margin:10px 20px 19px;font-size:.77rem;line-height:1.6}.library-empty button{background:var(--color-accent-soft);min-height:36px;color:var(--color-accent-strong);cursor:pointer;border:1px solid #78d6bd40;border-radius:8px;padding:0 14px;font-size:.72rem}@media (width<=1120px){.formula-library__hero{grid-template-columns:1fr;gap:28px}.formula-library__telemetry{width:min(100%,520px)}.library-controls{flex-direction:column;align-items:flex-start}.formula-grid{grid-template-columns:1fr}}@media (width<=760px){.formula-library{padding-inline:16px}.formula-library__hero h1{font-size:clamp(2.4rem,13vw,4rem)}.formula-library__telemetry{min-width:0}.formula-library__telemetry div{padding:12px 10px}.library-instrument{position:relative;top:auto}.library-search{padding-left:12px}.library-search input{font-size:.82rem}.library-examples{flex-direction:column;align-items:flex-start}.library-selects{flex-direction:column;align-items:stretch;width:100%}.library-selects label{justify-content:space-between}.library-results-heading{flex-direction:column;justify-content:center;align-items:flex-start;padding-block:14px}.formula-card{min-height:0}.formula-card__footer{flex-direction:column;align-items:flex-start;padding-block:12px}}.formula-inspector{width:min(100%,1580px);margin:0 auto;padding:clamp(30px,4vw,58px) clamp(22px,4vw,62px) 80px}.formula-inspector__back{color:var(--color-text-muted);align-items:center;gap:7px;margin-bottom:28px;font-size:.7rem;text-decoration:none;display:inline-flex}.formula-inspector__back:hover{color:var(--color-accent)}.formula-inspector__header{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:#0d1117c7;grid-template-columns:minmax(0,1fr) minmax(390px,.72fr);align-items:stretch;display:grid;overflow:hidden}.formula-inspector__identity{padding:clamp(28px,4vw,54px)}.formula-inspector__identity h1{letter-spacing:var(--display-letter-spacing);margin:0;font-size:clamp(2rem,4vw,4.4rem);font-weight:520;line-height:1.02}.formula-inspector__identity>p:last-child{max-width:680px;color:var(--color-text-muted);margin:18px 0 0;font-size:.84rem;line-height:1.7}.formula-inspector__equation-panel{border-left:1px solid var(--color-border-soft);background:linear-gradient(145deg,#78d6bd12,#0000 56%),#0a0f14;align-content:center;min-width:0;padding:clamp(28px,4vw,50px);display:grid}.formula-inspector__equation-panel>span,.formula-inspector__equation-panel>small{font-family:var(--font-mono)}.formula-inspector__equation-panel>span{color:var(--color-text-dim);letter-spacing:.1em;text-transform:uppercase;font-size:.58rem}.formula-inspector__equation-panel .math-expression{max-width:100%;color:var(--color-accent-strong);margin:22px 0;font-size:clamp(3rem,5vw,5.7rem);overflow-x:auto}.formula-inspector__equation-panel>small{color:var(--color-text-dim);font-size:.56rem;line-height:1.5}.formula-inspector__variables{flex-wrap:wrap;gap:7px;padding:12px 0;display:flex}.formula-inspector__variables button{border:1px solid var(--color-border-soft);min-width:175px;min-height:47px;color:var(--color-text-muted);cursor:crosshair;text-align:left;background:#ffffff04;border-radius:10px;align-items:center;gap:10px;padding:0 12px;transition:border-color .14s,background .14s,color .14s;display:flex}.formula-inspector__variables button:hover,.formula-inspector__variables button.is-active{background:var(--color-accent-soft);color:var(--color-text);border-color:#78d6bd47}.formula-inspector__variables var{min-width:27px;color:var(--color-accent-strong);font-family:var(--font-math);text-align:center;font-size:1.2rem}.formula-inspector__variables button>span{gap:3px;display:grid}.formula-inspector__variables strong{font-size:.67rem;font-weight:560}.formula-inspector__variables small{color:var(--color-text-dim);font:.52rem var(--font-mono);text-transform:uppercase}.inspector-tabs{top:calc(var(--topbar-height) + 10px);z-index:9;border:1px solid var(--color-border);scrollbar-width:none;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0a0e13ed;border-radius:12px;padding:5px;display:flex;position:sticky;overflow-x:auto}.inspector-tabs::-webkit-scrollbar{display:none}.inspector-tabs button{min-width:118px;min-height:39px;color:var(--color-text-dim);cursor:pointer;background:0 0;border:0;border-radius:8px;flex:1 0 auto;justify-content:center;align-items:center;gap:7px;font-size:.67rem;transition:background .14s,color .14s;display:flex;position:relative}.inspector-tabs button:hover{color:var(--color-text-muted)}.inspector-tabs button.is-active{background:var(--color-accent-soft);color:var(--color-accent-strong)}.inspector-tabs button small{color:var(--color-accent);font:.46rem var(--font-mono);letter-spacing:.07em;text-transform:uppercase;border:1px solid #78d6bd33;border-radius:999px;padding:2px 5px}.formula-inspector__content{min-height:580px;padding-top:14px}.newton-lab{grid-template-columns:minmax(0,1fr) minmax(285px,350px);gap:14px;display:grid}.newton-stage,.newton-console{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:#0d1117d1}.newton-stage{min-width:0;overflow:hidden}.newton-stage__header,.newton-console>header{border-bottom:1px solid var(--color-border-soft);justify-content:space-between;align-items:center;min-height:62px;padding:0 20px;display:flex}.newton-stage__header>div:first-child,.newton-stage__clock,.newton-console>header{font-family:var(--font-mono)}.newton-stage__header>div:first-child,.newton-stage__clock{gap:5px;display:grid}.newton-stage__header span,.newton-console>header span{color:var(--color-text-dim);letter-spacing:.09em;text-transform:uppercase;font-size:.54rem}.newton-stage__header strong,.newton-console>header strong{color:var(--color-text-muted);font-size:.65rem;font-weight:500}.newton-stage__clock{text-align:right}.newton-stage__clock output{color:var(--color-accent);font-size:.76rem}.newton-stage__canvas{background:radial-gradient(circle at 50% 55%,#78d6bd0b,#0000 48%),#090d12;width:100%;min-height:330px;display:block}.newton-stage__grid line{stroke:#ffffff06;stroke-width:1px}.newton-stage__track{stroke:#44505c;stroke-width:2px}.newton-stage__origin{stroke:#78d6bd8c;stroke-width:1px}.newton-stage__origin-label{fill:#596574;font:10px var(--font-mono)}.newton-cart,.newton-vector,.newton-stage__readouts>div,.newton-result{transition:opacity .14s,filter .14s}.newton-cart>rect{stroke:#4a6669;stroke-width:1.5px}.newton-cart>line{stroke:#a1efd947}.newton-cart text{fill:#d9e5e4;font:11px var(--font-mono)}.newton-cart circle{fill:#0b0f14;stroke:#5c6975;stroke-width:2px}.newton-cart g line{stroke:#778590;stroke-width:1px}.newton-vector line{stroke-width:3px}.newton-vector text{font:10px var(--font-mono)}.newton-vector--force line,#force-arrowhead polygon{fill:#e0aa72;stroke:#e0aa72}.newton-vector--force text{fill:#e0aa72}.newton-vector--acceleration line,#acceleration-arrowhead polygon{fill:var(--color-accent);stroke:var(--color-accent)}.newton-vector--acceleration text{fill:var(--color-accent)}.formula-inspector .is-dimmed{opacity:.24}.formula-inspector .is-linked{filter:drop-shadow(0 0 8px #78d6bd6b)}.newton-stage__readouts{border-top:1px solid var(--color-border-soft);border-bottom:1px solid var(--color-border-soft);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.newton-stage__readouts>div{gap:7px;min-width:0;padding:14px 18px;display:grid}.newton-stage__readouts>div+div{border-left:1px solid var(--color-border-soft)}.newton-stage__readouts span{color:var(--color-text-dim);font:.53rem var(--font-mono);letter-spacing:.08em;text-transform:uppercase}.newton-stage__readouts strong{color:var(--color-text);font:.87rem var(--font-mono);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.newton-stage__readouts small,.newton-result small{color:var(--color-text-dim);font-size:.58rem}.transport-controls{grid-template-columns:auto auto minmax(120px,1fr) auto;align-items:center;gap:8px;min-height:64px;padding:10px 14px;display:grid}.transport-controls button{border:1px solid var(--color-border);min-height:35px;color:var(--color-text-muted);cursor:pointer;background:#111820;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:0 10px;font-size:.62rem;display:flex}.transport-controls button:first-child{background:var(--color-accent-soft);color:var(--color-accent-strong);border-color:#78d6bd3d}.transport-controls label{align-items:center;min-width:0;display:flex}.transport-controls output{color:var(--color-text-dim);font:.55rem var(--font-mono);white-space:nowrap}.newton-console{align-self:start;overflow:hidden}.newton-console>header strong{color:var(--color-accent)}.newton-control{border-bottom:1px solid var(--color-border-soft);gap:13px;padding:20px;display:grid}.newton-control__heading,.newton-control__heading>span{align-items:center;display:flex}.newton-control__heading{justify-content:space-between;gap:12px}.newton-control__heading>span{gap:8px}.newton-control var{min-width:29px;color:var(--color-accent-strong);font:italic 1.05rem var(--font-math)}.newton-control strong{color:var(--color-text-muted);font-size:.68rem;font-weight:520}.newton-control output{color:var(--color-text);font:.76rem var(--font-mono)}.newton-control output small{color:var(--color-text-dim);font-size:.55rem}.formula-inspector input[type=range]{appearance:none;background:linear-gradient(90deg, var(--color-accent) 0, var(--color-accent) var(--range-progress), #2a333e var(--range-progress), #2a333e 100%);cursor:pointer;border-radius:999px;outline:none;width:100%;height:4px;margin:0}.formula-inspector input[type=range]::-webkit-slider-thumb{appearance:none;background:#18251f;border:2px solid #b7f0df;border-radius:50%;width:15px;height:15px;box-shadow:0 0 0 4px #78d6bd14}.formula-inspector input[type=range]::-moz-range-thumb{background:#18251f;border:2px solid #b7f0df;border-radius:50%;width:12px;height:12px}.newton-control__range{color:var(--color-text-dim);font:.5rem var(--font-mono);justify-content:space-between;display:flex}.newton-result{background:var(--color-accent-soft);border:1px solid #78d6bd33;border-radius:12px;gap:8px;margin:16px;padding:16px;display:grid}.newton-result>span{color:var(--color-text-dim);font:.54rem var(--font-mono);letter-spacing:.08em;text-transform:uppercase}.newton-result output{color:var(--color-accent-strong);font:1.18rem var(--font-mono)}.newton-result output var{font:italic 1.5rem var(--font-math)}.newton-result code{color:var(--color-text-dim);font:.57rem var(--font-mono)}.newton-console__note{border-top:1px solid var(--color-border-soft);color:var(--color-text-dim);margin:0;padding:14px 18px 18px;font-size:.64rem;line-height:1.6}.newton-graphs{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.relationship-graph{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:#0d1117d1;min-width:0;transition:border-color .14s,box-shadow .14s;overflow:hidden}.relationship-graph--linked{border-color:#78d6bd40;box-shadow:inset 0 0 40px #78d6bd06}.relationship-graph>header{border-bottom:1px solid var(--color-border-soft);justify-content:space-between;align-items:center;gap:16px;min-height:67px;padding:0 18px;display:flex}.relationship-graph>header>div{gap:5px;display:grid}.relationship-graph>header span{color:var(--color-text-dim);font:.5rem var(--font-mono);letter-spacing:.09em;text-transform:uppercase}.relationship-graph h3{margin:0;font-size:.77rem;font-weight:540}.relationship-graph header output{color:var(--color-accent);font:.62rem var(--font-mono);white-space:nowrap}.relationship-graph svg{background:#090d12;width:100%;min-height:320px;display:block}.relationship-graph__frame{fill:#ffffff02;stroke:#2b3540}.relationship-graph__tick line{stroke:#ffffff0b;stroke-width:1px}.relationship-graph__tick text,.relationship-graph__axis-label{fill:#687481;font:10px var(--font-mono)}.relationship-graph__axis-label{transition:fill .14s,filter .14s}.relationship-graph__axis-label.is-highlighted{fill:var(--color-accent-strong);filter:drop-shadow(0 0 4px #78d6bd6b)}.relationship-graph__zero{stroke:#56616d;stroke-width:1px}.relationship-graph__line{fill:none;stroke:var(--color-accent);stroke-linecap:round;stroke-linejoin:round;stroke-width:2.5px}.relationship-graph__guide{stroke:#78d6bd47;stroke-dasharray:3 4}.relationship-graph__marker-halo{fill:#78d6bd1a;stroke:#78d6bd40}.relationship-graph__marker{fill:var(--color-accent-strong)}.inspector-learning-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.learning-panel,.rearrangement-panel,.equation-rearranger,.unit-instrument,.worked-example,.related-panel,.practice-instrument,.pending-instrument{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:#0d1117d1}.learning-panel{padding:clamp(22px,3vw,34px)}.learning-panel--wide{grid-column:1/-1}.learning-panel>span,.rearrangement-panel header span,.instrument-heading>div>span,.worked-example header span,.related-panel header span,.practice-instrument header span,.pending-instrument>span{color:var(--color-accent);font:.56rem var(--font-mono);letter-spacing:.09em;text-transform:uppercase}.learning-panel h2,.rearrangement-panel h2,.instrument-heading h2,.related-panel h2,.practice-instrument h2,.pending-instrument h2{margin:11px 0 0;font-size:clamp(1.05rem,2vw,1.55rem);font-weight:520;line-height:1.35}.learning-panel p,.pending-instrument p{max-width:760px;color:var(--color-text-muted);margin:14px 0 0;font-size:.75rem;line-height:1.7}.learning-panel ul{gap:10px;margin:17px 0 0;padding:0;list-style:none;display:grid}.learning-panel li{color:var(--color-text-muted);padding-left:18px;font-size:.72rem;line-height:1.55;position:relative}.learning-panel li:before{background:var(--color-accent);content:"";border-radius:50%;width:5px;height:5px;position:absolute;top:.55em;left:0}.learning-panel--warning li:before{background:#d6a26f}.dimension-readout{grid-template-columns:1fr auto;align-items:end;gap:14px;display:grid}.dimension-readout>span{grid-column:1/-1}.dimension-readout code{color:var(--color-accent-strong);font:clamp(1.25rem, 3vw, 2.4rem) var(--font-math)}.dimension-readout strong{color:var(--color-accent);font:.58rem var(--font-mono);text-transform:uppercase;font-weight:500}.rearrangement-panel,.equation-rearranger,.unit-instrument,.related-panel,.practice-instrument{padding:clamp(22px,3vw,34px)}.rearrangement-panel>div,.related-panel>div{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:24px;display:grid}.rearrangement-panel article{border:1px solid var(--color-border-soft);background:#0a0f14;border-radius:12px;gap:13px;min-width:0;padding:20px;display:grid}.rearrangement-panel article>span,.rearrangement-panel article>small{color:var(--color-text-dim);font:.55rem var(--font-mono);text-transform:uppercase}.rearrangement-panel .math-expression{color:var(--color-accent-strong);font-size:clamp(2rem,4vw,3.5rem);overflow-x:auto}.instrument-heading{justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.instrument-heading>div>span{display:block}.instrument-heading>small{color:var(--color-text-dim);font:.52rem var(--font-mono);letter-spacing:.06em;text-transform:uppercase;margin-top:3px}.equation-rearranger__selector,.unit-instrument__variables{grid-template-columns:repeat(auto-fit,minmax(165px,1fr));gap:7px;margin-top:24px;display:grid}.equation-rearranger__selector button,.unit-instrument__variables button{border:1px solid var(--color-border-soft);min-height:61px;color:var(--color-text-muted);cursor:pointer;text-align:left;background:#0d131a;border-radius:10px;grid-template-columns:auto 1fr;align-items:center;gap:4px 11px;padding:10px 13px;transition:border-color .14s,background .14s,color .14s;display:grid}.equation-rearranger__selector button:hover,.equation-rearranger__selector button.is-active,.unit-instrument__variables button:hover,.unit-instrument__variables button.is-active{background:var(--color-accent-soft);color:var(--color-text);border-color:#91dec94d}.equation-rearranger__selector var,.unit-instrument__variables var{min-width:30px;color:var(--color-accent-strong);font:italic 1.35rem var(--font-math);text-align:center;grid-row:1/span 2}.equation-rearranger__selector span,.unit-instrument__variables span,.unit-instrument__variables small{font-size:.57rem}.equation-rearranger__selector span,.unit-instrument__variables small{color:var(--color-text-dim)}.equation-rearranger__selector strong{color:inherit;margin-top:3px;font-size:.67rem;font-weight:560;display:block}.equation-rearranger__sequence{grid-template-columns:minmax(0,1fr) minmax(170px,.52fr) minmax(0,1fr);align-items:stretch;gap:10px;margin-top:12px;display:grid}.algebra-step,.algebra-operation{border:1px solid var(--color-border-soft);background:#0a1016;border-radius:13px;min-width:0;padding:clamp(18px,2.5vw,28px)}.algebra-step{align-content:center;gap:20px;min-height:250px;display:grid}.algebra-step>span,.algebra-operation>span{color:var(--color-text-dim);font:.52rem var(--font-mono);letter-spacing:.08em;text-transform:uppercase}.algebra-step .math-expression{max-width:100%;color:var(--color-text-muted);font-size:clamp(2rem,4vw,3.8rem);overflow-x:auto}.algebra-step--result{background:linear-gradient(145deg,#91dec913,#0000 70%),#0a1016;border-color:#91dec938;animation:.38s ease-out .14s both algebra-result-in}.algebra-step--result .math-expression{color:var(--color-accent-strong)}.algebra-step--result>small{color:var(--color-accent);font:.53rem var(--font-mono);text-transform:uppercase;align-items:center;gap:6px;display:flex}.algebra-operation{color:var(--color-accent);place-content:center;gap:10px;animation:.3s ease-out both algebra-operation-in;display:grid}.algebra-operation strong{color:var(--color-text-muted);font-size:.68rem;font-weight:510;line-height:1.55}@keyframes algebra-operation-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}@keyframes algebra-result-in{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}.unit-instrument__variables button{grid-template-columns:auto 1fr auto}.unit-instrument__variables var{grid-row:auto}.unit-instrument__variables span{color:var(--color-text-muted);font-weight:550}.unit-instrument__variables small{font-family:var(--font-mono)}.unit-instrument__workspace{grid-template-columns:minmax(280px,.85fr) minmax(0,1.15fr);gap:10px;margin-top:12px;display:grid}.unit-input-panel,.unit-monitor,.accepted-units{border:1px solid var(--color-border-soft);background:#0a1016;border-radius:13px;padding:clamp(18px,2.5vw,26px)}.unit-input-panel>span,.unit-monitor>span,.accepted-units header span{color:var(--color-accent);font:.54rem var(--font-mono);letter-spacing:.08em;text-transform:uppercase}.unit-input-row{grid-template-columns:minmax(0,1fr) minmax(110px,.55fr);gap:8px;margin-top:18px;display:grid}.unit-input-row label{color:var(--color-text-dim);font:.51rem var(--font-mono);text-transform:uppercase;gap:7px;display:grid}.unit-input-row input{border:1px solid var(--color-border);width:100%;min-height:48px;color:var(--color-text);font:.86rem var(--font-mono);background:#111a23;border-radius:9px;outline:0;padding:0 12px}.unit-input-row input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-soft)}.unit-input-panel p,.unit-monitor p{color:var(--color-text-dim);margin:15px 0 0;font-size:.62rem;line-height:1.65}.unit-input-panel code{color:var(--color-text-muted);font-family:var(--font-mono)}.unit-monitor{align-content:center;justify-items:start;gap:12px;display:grid}.unit-monitor--ready,.unit-monitor--converted{color:var(--color-accent);background:linear-gradient(145deg,#91dec914,#0000 66%),#0a1016;border-color:#91dec938}.unit-monitor--incompatible,.unit-monitor--unsupported,.unit-monitor--unknown,.unit-monitor--invalid-value{color:#d6a26f;border-color:#d6a26f42}.unit-monitor output{color:var(--color-text-muted);font:clamp(1rem, 2.2vw, 1.55rem) var(--font-mono);flex-wrap:wrap;align-items:center;gap:10px;display:flex}.unit-monitor output strong,.unit-monitor>strong{color:var(--color-text);font-weight:540}.unit-monitor code,.unit-monitor small{color:var(--color-text-dim);font:.57rem var(--font-mono)}.accepted-units{margin-top:10px}.accepted-units header{justify-content:space-between;gap:20px;display:flex}.accepted-units header small{color:var(--color-text-dim);font:.51rem var(--font-mono)}.accepted-units>div{grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:7px;margin-top:15px;display:grid}.accepted-units button{border:1px solid var(--color-border-soft);min-height:62px;color:var(--color-text-dim);cursor:pointer;text-align:left;background:#0e151d;border-radius:9px;grid-template-columns:auto 1fr;align-items:center;gap:4px 11px;padding:10px 12px;display:grid}.accepted-units button:hover,.accepted-units button.is-active{color:var(--color-accent);border-color:#91dec947}.accepted-units button>svg{grid-row:1/span 2}.accepted-units button>span{align-items:baseline;gap:7px;display:flex}.accepted-units button strong{color:var(--color-text);font:.74rem var(--font-mono)}.accepted-units button small,.accepted-units button code{color:var(--color-text-dim);font:.51rem var(--font-mono)}.example-stack{gap:14px;display:grid}.worked-example{padding:clamp(22px,4vw,40px);overflow:hidden}.worked-example h2{max-width:820px;margin:13px 0 0;font-size:clamp(1.15rem,2.5vw,2rem);font-weight:520;line-height:1.4}.worked-example__knowns{flex-wrap:wrap;gap:7px;margin-top:22px;display:flex}.worked-example__knowns span{border:1px solid var(--color-border-soft);color:var(--color-text-muted);font:.65rem var(--font-mono);background:#0a0f14;border-radius:8px;padding:8px 10px}.worked-example__knowns var{color:var(--color-accent-strong);font-family:var(--font-math)}.worked-example ol{counter-reset:example-step;gap:0;max-width:760px;margin:25px 0;padding:0;list-style:none;display:grid}.worked-example li{border-top:1px solid var(--color-border-soft);min-height:48px;color:var(--color-text-muted);font:.8rem var(--font-math);counter-increment:example-step;grid-template-columns:34px 1fr;align-items:center;display:grid}.worked-example li:before{color:var(--color-text-dim);font:.55rem var(--font-mono);content:counter(example-step, decimal-leading-zero)}.worked-example>strong{color:var(--color-accent);font:.7rem var(--font-mono)}.related-panel a{border:1px solid var(--color-border-soft);background:#0a0f14;border-radius:12px;gap:10px;min-width:0;padding:20px;text-decoration:none;transition:border-color .14s,transform .14s;display:grid}.related-panel a:hover{border-color:#78d6bd40;transform:translateY(-2px)}.related-panel a>span,.related-panel a>small{color:var(--color-text-dim);font:.54rem var(--font-mono)}.related-panel .math-expression{color:var(--color-accent-strong);font-size:clamp(1.8rem,3vw,3rem);overflow-x:auto}.related-panel a>strong{font-size:.82rem;font-weight:540}.related-panel a>small{line-height:1.55}.pending-instrument{min-height:430px;color:var(--color-text-dim);text-align:center;place-content:center;justify-items:center;padding:30px;display:grid}.pending-instrument>span{margin-top:17px}.pending-instrument p{max-width:560px}.practice-instrument>header{justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.practice-instrument button{border:1px solid var(--color-border);min-height:35px;color:var(--color-text-muted);cursor:pointer;background:#111820;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:0 11px;font-size:.62rem;display:inline-flex}.practice-instrument button:disabled{cursor:not-allowed;opacity:.45}.practice-instrument__problem{border:1px solid var(--color-border-soft);background:#0a0f14;border-radius:12px;margin-top:28px;padding:22px}.practice-instrument__problem>p{max-width:760px;margin:0;font-size:.9rem;line-height:1.7}.practice-instrument__problem dl{flex-wrap:wrap;gap:7px;margin:20px 0 0;display:flex}.practice-instrument__problem dl div{border:1px solid var(--color-border-soft);border-radius:8px;gap:5px;min-width:145px;padding:9px 11px;display:grid}.practice-instrument__problem dt{color:var(--color-text-dim);font:.5rem var(--font-mono);text-transform:uppercase}.practice-instrument__problem dd{color:var(--color-text-muted);font:.64rem var(--font-mono);margin:0}.practice-answer{gap:9px;margin-top:22px;display:grid}.practice-answer>label{color:var(--color-text-dim);font:.54rem var(--font-mono);letter-spacing:.08em;text-transform:uppercase}.practice-answer>div{grid-template-columns:minmax(100px,190px) auto auto;justify-content:start;align-items:center;gap:8px;display:grid}.practice-answer input{border:1px solid var(--color-border);min-width:0;height:42px;color:var(--color-text);font:.8rem var(--font-mono);background:#090d12;border-radius:8px;outline:0;padding:0 11px}.practice-answer input:focus{border-color:#78d6bd80}.practice-answer>div>span{color:var(--color-text-dim);font:.62rem var(--font-mono)}.practice-answer>div>button{background:var(--color-accent-soft);color:var(--color-accent-strong);border-color:#78d6bd3d}.practice-feedback{margin:0;font-size:.69rem}.practice-feedback--correct{color:var(--color-accent)}.practice-feedback--incorrect{color:#d7a16f}.practice-hints{justify-items:start;gap:0;margin-top:24px;display:grid}.practice-hints p{border-bottom:1px solid var(--color-border-soft);width:min(100%,680px);min-height:39px;color:var(--color-text-muted);grid-template-columns:34px 1fr;align-items:center;margin:0;font-size:.7rem;display:grid}.practice-hints p span{color:var(--color-text-dim);font:.52rem var(--font-mono)}.practice-hints var{color:var(--color-accent-strong);font-family:var(--font-math)}@media (width<=1180px){.formula-inspector__header{grid-template-columns:1fr}.formula-inspector__equation-panel{border-top:1px solid var(--color-border-soft);border-left:0}.newton-lab{grid-template-columns:1fr}.newton-console{width:100%}.newton-graphs,.equation-rearranger__sequence{grid-template-columns:1fr}.algebra-operation{min-height:120px}}@media (width<=760px){.formula-inspector{padding-inline:16px}.formula-inspector__variables{grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.formula-inspector__variables button{min-width:0}.inspector-tabs{position:relative;top:auto}.inspector-tabs button{min-width:105px}.newton-stage__canvas{min-height:260px}.newton-stage__readouts{grid-template-columns:1fr}.newton-stage__readouts>div+div{border-top:1px solid var(--color-border-soft);border-left:0}.transport-controls{grid-template-columns:1fr 1fr}.transport-controls label{grid-column:1/-1}.transport-controls output{text-align:right;grid-column:1/-1}.inspector-learning-grid,.rearrangement-panel>div,.related-panel>div{grid-template-columns:1fr}.learning-panel--wide{grid-column:auto}.dimension-readout{grid-template-columns:1fr}.dimension-readout>span{grid-column:auto}.practice-instrument>header,.instrument-heading,.accepted-units header{flex-direction:column;align-items:stretch}.unit-instrument__workspace,.unit-input-row{grid-template-columns:1fr}.algebra-step{min-height:210px}}@media (width<=480px){.formula-inspector__variables{grid-template-columns:1fr}.formula-inspector__equation-panel .math-expression{font-size:2.65rem}.newton-stage__header{flex-direction:column;align-items:flex-start;padding-block:12px}.newton-stage__clock{text-align:left}.practice-answer>div{grid-template-columns:minmax(90px,1fr) auto}.practice-answer>div>button{grid-column:1/-1}.equation-rearranger,.unit-instrument{padding-inline:16px}.equation-rearranger__selector,.unit-instrument__variables,.accepted-units>div{grid-template-columns:1fr}.algebra-step .math-expression{font-size:2.15rem}}.module-index{width:min(100%,1420px);margin:0 auto;padding:clamp(44px,6vw,88px) clamp(22px,5vw,74px) 80px}.module-index__hero{grid-template-columns:minmax(0,1fr) minmax(280px,360px);align-items:end;gap:clamp(34px,7vw,100px);display:grid}.module-index__hero h1{max-width:820px;letter-spacing:var(--display-letter-spacing);font-size:clamp(2.6rem,5.5vw,5.8rem);font-weight:520;line-height:var(--display-line-height);text-wrap:balance;margin:0}.module-index__hero>div>p:last-child{max-width:700px;color:var(--color-text-muted);margin:24px 0 0;font-size:.92rem;line-height:1.72}.module-index__hero dl{border-block:1px solid var(--color-border);margin:0}.module-index__hero dl>div{border-bottom:1px solid var(--color-border-soft);min-height:48px;font:.6rem var(--font-mono);justify-content:space-between;align-items:center;gap:20px;display:flex}.module-index__hero dl>div:last-child{border-bottom:0}.module-index__hero dt{color:var(--color-text-dim);text-transform:uppercase}.module-index__hero dd{color:var(--color-accent);margin:0}.module-index__workspace{grid-template-columns:minmax(0,1fr) minmax(280px,350px);gap:14px;margin-top:clamp(38px,6vw,70px);display:grid}.module-index__card,.module-index__standard{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:#0d1117d1}.module-index__card{grid-template-columns:minmax(210px,.75fr) minmax(0,1fr);display:grid;overflow:hidden}.module-index__card>header{border-bottom:1px solid var(--color-border-soft);min-height:49px;color:var(--color-text-dim);font:.55rem var(--font-mono);letter-spacing:.08em;text-transform:uppercase;grid-column:1/-1;justify-content:space-between;align-items:center;padding:0 20px;display:flex}.module-index__equation{border-right:1px solid var(--color-border-soft);background:linear-gradient(145deg,#78d6bd12,#0000 58%),#090e13;align-items:center;min-width:0;padding:clamp(24px,4vw,46px);display:flex}.module-index__equation .math-expression{color:var(--color-accent-strong);font-size:clamp(2.7rem,5vw,5.2rem);overflow-x:auto}.module-index__card-copy{padding:clamp(24px,4vw,42px)}.module-index__card-copy h2,.module-index__standard h2{margin:0;font-size:clamp(1.2rem,2.5vw,2rem);font-weight:530}.module-index__card-copy>p,.module-index__standard>p{color:var(--color-text-muted);margin:13px 0 0;font-size:.74rem;line-height:1.68}.module-index__card-copy ul{gap:9px;margin:20px 0 0;padding:0;list-style:none;display:grid}.module-index__card-copy li{color:var(--color-text-muted);align-items:center;gap:8px;font-size:.67rem;display:flex}.module-index__card-copy li svg{color:var(--color-accent)}.module-index__card>a{border-top:1px solid var(--color-border-soft);min-height:52px;color:var(--color-accent);grid-column:1/-1;justify-content:space-between;align-items:center;padding:0 20px;font-size:.7rem;text-decoration:none;transition:background .14s,color .14s;display:flex}.module-index__card>a:hover{background:var(--color-accent-soft);color:var(--color-accent-strong)}.module-index__standard{align-self:stretch;padding:clamp(24px,3vw,34px)}.module-index__standard>span,.module-index__standard>div span{color:var(--color-text-dim);font:.55rem var(--font-mono);letter-spacing:.08em;text-transform:uppercase}.module-index__standard h2{margin-top:13px}.module-index__standard>div{border-top:1px solid var(--color-border-soft);justify-content:space-between;gap:16px;margin-top:28px;padding-top:16px;display:flex}.module-index__standard>div strong{color:var(--color-accent);font:.63rem var(--font-mono);font-weight:500}@media (width<=980px){.module-index__hero,.module-index__workspace{grid-template-columns:1fr}.module-index__hero dl{width:min(100%,560px)}}@media (width<=680px){.module-index{padding:44px 16px 58px}.module-index__card{grid-template-columns:1fr}.module-index__equation{border-right:0;border-bottom:1px solid var(--color-border-soft);min-height:150px}.module-index__card-copy{grid-column:1}}
