/* A connected mathematical story, goal-led examples, and an editorial result. */
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header nav{gap:25px}
.understanding-scene{position:relative;background:#fff;margin-top:0}
.scene-sticky{display:grid;grid-template-columns:.9fr 1.1fr;grid-template-rows:auto auto;align-content:center;align-items:center;column-gap:45px;padding-block:85px;min-height:690px;position:relative}
.scene-heading{grid-column:1;grid-row:1}
.scene-heading h2{font-size:clamp(2.4rem,4vw,3.5rem);line-height:1.18;letter-spacing:-2.4px}
.scene-heading h2 em,.goal-copy h3 em{font-style:normal;color:var(--gold)}
.scene-intro{font-size:.9375rem;color:var(--muted);margin:26px 0 0}
.scene-visual{grid-column:2;grid-row:1 / 3;position:relative;min-width:0;isolation:isolate}
.scene-visual::before{content:'';position:absolute;inset:2% -3%;background:radial-gradient(ellipse,#ecf0ff88,transparent 70%);z-index:-1}
#understanding-graph{width:100%;overflow:visible}
.scene-grid{color:#dfe5f2;stroke-width:1}
.scene-axes{color:#9faec9;stroke-width:1.25}
.scene-parabola{color:#3459e8;stroke-width:2.5;stroke-linecap:round}
.scene-formula{display:block;font:italic 2rem Georgia,serif;color:var(--gold);transform:rotate(-7deg);margin-left:58%;margin-bottom:-20px}
.scene-answer{position:absolute;right:4%;bottom:1%;display:flex;flex-direction:column;padding:13px 20px;transform:rotate(-4deg);background:#fff;box-shadow:0 8px 45px #2035630c;border:1px solid #e7ebf2;border-radius:12px}
.scene-answer>span{font-size:.5rem;letter-spacing:1.1px;color:var(--muted)}
.scene-answer strong{font:italic 1.625rem Georgia,serif;line-height:1.7}.scene-answer i{font-style:normal;color:var(--gold);margin-left:18px}
.scene-steps{list-style:none;padding:0;margin:36px 0 0;display:flex;flex-direction:column;gap:16px;grid-column:1;grid-row:2}
.scene-steps li{display:flex;gap:14px;align-items:flex-start;transition:opacity .35s,color .35s}
.scene-steps li>span{font-size:.6875rem;line-height:2.2;color:var(--gold);min-width:22px}
.scene-steps strong{font-weight:600;font-size:.875rem}.scene-steps p{font-size:.75rem;color:var(--muted);margin:2px 0 0}
.scene-scroll-cue{display:none;position:absolute;bottom:18px;left:0;font-size:.5rem;letter-spacing:1.3px;color:var(--muted);gap:17px;align-items:center}
.scene-scroll-cue span{font-size:1.1rem;color:var(--gold)}
.scene-animated .scene-sticky{position:sticky;top:0;min-height:100svh}
.scene-animated .scene-scroll-cue{display:flex}
.scene-animated .scene-steps li{opacity:.3}.scene-animated .scene-steps li.is-current{opacity:1}
.goals-section{padding-block:100px 95px}
.goals-heading{display:flex;align-items:end;justify-content:space-between;gap:36px;margin-bottom:40px}
.goals-heading>p{font-size:.875rem;color:var(--muted);margin:0 0 6px}
.goal-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;background:#e9edf5;padding:7px;border-radius:16px;margin-bottom:45px}
.goal-tabs button{border:0;background:transparent;border-radius:10px;padding:19px 20px;text-align:left;display:flex;gap:13px;align-items:center;color:#64718b;font-size:.875rem;font-weight:600;line-height:1.5;transition:background .3s,color .3s,box-shadow .3s;min-width:0}
.goal-tabs button[aria-selected=true]{background:#fff;color:var(--gold);box-shadow:0 5px 18px #2034600a}
.goal-tabs button:hover{color:var(--gold)}.goal-tabs button:focus-visible{outline-offset:1px}
.goal-tab-index{font-size:.625rem;font-weight:500;opacity:.7}.goal-tab-arrow{font-size:1.4rem;font-weight:400;margin-left:auto;opacity:.4}.goal-tabs button[aria-selected=true] .goal-tab-arrow{opacity:1}
.goal-panel{display:grid;grid-template-columns:1fr 1fr;gap:85px;align-items:center;margin-block:40px}
.goal-panel:last-child{margin-bottom:0}.goal-copy{min-width:0}.goal-copy .eyebrow{font-size:.5625rem;margin-bottom:20px}
.goal-copy h3{font-size:clamp(2rem,3.1vw,2.75rem);font-weight:500;line-height:1.25;letter-spacing:-1.7px;margin:0 0 22px}
.goal-copy>p:not(.eyebrow){font-size:.9375rem;color:var(--muted);line-height:1.9;max-width:470px}
.goal-topics{padding:0;margin:25px 0;list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.goal-topics li{font-size:.6875rem;border:1px solid #dce2ee;border-radius:30px;padding:6px 12px;color:#5f6e86}
.goal-cta{display:inline-flex;gap:25px;align-items:center;margin-top:4px;font-size:.8125rem}
.goal-cta>span{font-size:1.3rem}
.goal-example{position:relative;min-width:0;background:#fff;border:1px solid #e0e6f1;border-radius:20px;padding:27px 30px 12px;box-shadow:0 18px 50px #28396606}
.example-label{display:flex;justify-content:space-between;align-items:center;margin:0 0 11px;color:var(--muted);font-size:.5rem;letter-spacing:1.4px}
.example-label>span:last-child{font-size:1.5rem;color:var(--gold)}
.goal-example h4{font-size:1.0625rem;line-height:1.5;font-weight:500;letter-spacing:-.3px;margin:0}
.goal-example>svg{width:100%;margin:8px 0 10px}
.example-solution{border-top:1px solid #e6eaf2}.example-solution summary{font-size:.8125rem;color:var(--gold);padding:17px 0;display:flex;justify-content:space-between;align-items:center;gap:15px;cursor:pointer;list-style:none;line-height:1.55}.example-solution summary::-webkit-details-marker{display:none}
.example-solution summary>span{font-size:1.3rem;transition:transform .25s}.example-solution[open] summary>span{transform:rotate(45deg)}
.example-solution p{font-size:.8125rem;line-height:1.9;color:var(--muted);margin:0 0 15px}
.result-showcase{background:#3459e8;color:#fff;position:relative;overflow:hidden;padding-block:55px 46px}
.result-showcase::after{content:'';position:absolute;width:620px;height:620px;border:1px solid #ffffff0f;border-radius:50%;right:-360px;top:-240px;box-shadow:0 0 0 60px #ffffff03,0 0 0 120px #ffffff02;pointer-events:none}
.showcase-top{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1}.showcase-top .eyebrow{color:#dce4ff;font-size:.625rem;margin:0}
.showcase-star{font-size:2.5rem;font-weight:300;line-height:1;color:#e6ee96}
.showcase-panel{display:grid;grid-template-columns:1.25fr 1fr;column-gap:100px;row-gap:48px;padding-top:44px;position:relative;z-index:1}
.showcase-score{position:relative;align-self:center;min-width:0;padding-bottom:13px}
.showcase-numbers{display:flex;gap:12px;align-items:center;justify-content:space-between;font-size:clamp(5rem,9.8vw,9.3rem);letter-spacing:-8px;line-height:1.05;font-weight:400}
.showcase-numbers>span{color:#b9c9ff}.showcase-numbers>strong{font-weight:500;color:#e6ee96}.showcase-numbers>i{font-style:normal;font-size:.5em;letter-spacing:0;color:#dbe3ff}
.result-flight{color:#e6ee96;flex:1;min-width:32px;max-width:130px;margin-top:14px}
.showcase-score>p{color:#dde5ff;font-size:.5625rem;letter-spacing:1.5px;margin:23px 0 0}
.score-underline{width:100%;height:32px;position:absolute;bottom:-18px;left:0;color:#dce793}
.showcase-copy{align-self:center;min-width:0}.showcase-copy h3{font-size:clamp(1.75rem,2.6vw,2.4rem);font-weight:400;line-height:1.27;letter-spacing:-1.2px;margin:0 0 23px}.showcase-copy h3 em{font-style:normal;color:#e6ee96}
.showcase-copy>p{font-size:.875rem;line-height:1.9;color:#e2e9ff;max-width:385px;margin:0}
.showcase-method{grid-column:1 / -1;padding-top:23px;border-top:1px solid #ffffff29;display:grid;grid-template-columns:1fr 3.3fr;gap:30px;align-items:start}
.showcase-method>p{font-size:.5rem;letter-spacing:1.3px;color:#dce4ff;margin:6px 0}
.showcase-method ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:35px}
.showcase-method li{display:flex;align-items:start;gap:13px;font-size:.8125rem;line-height:1.7}.showcase-method li>span{font-size:.5625rem;color:#cedbff;line-height:2.3}
.showcase-bottom{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:35px;border-top:1px solid #ffffff29;padding-top:24px;margin-top:-16px}
.showcase-bottom>p{max-width:440px;font-size:.625rem;line-height:1.9;color:#dce4ff;margin:0}
.secondary-result{display:flex;align-items:center;gap:25px}.secondary-result>span{font-size:.5rem;letter-spacing:1px;max-width:110px}.secondary-result strong{font-size:2.25rem;line-height:1.3;font-weight:500;letter-spacing:-1px;white-space:nowrap}.secondary-result strong>i{font-weight:400;font-style:normal;color:#a9bfff;padding-inline:6px}.secondary-result strong>span{font-size:.6875rem;letter-spacing:0;color:#c9d6ff;margin-left:5px}
.showcase-link{font-size:.75rem;display:flex;gap:25px;align-items:center}.showcase-link>span{font-size:1.5rem;color:#e6ee96}
.result-showcase a:focus-visible{outline-color:#e6ee96}
.showcase-panel+ .showcase-panel{margin-top:60px;border-top:1px solid #ffffff29}
.goals-ready .showcase-panel{margin-top:0;border-top:0}
.result-showcase.draw-ready .draw-stroke{stroke-dasharray:1;stroke-dashoffset:1}.result-showcase.draw-ready.is-drawn .draw-stroke{stroke-dashoffset:0;transition:stroke-dashoffset 1.4s cubic-bezier(.2,.7,.2,1)}
.approach-section{background:#f4f5f8;border-block:0;padding-block:115px}
.approach-sign{position:relative;width:fit-content;padding-bottom:10px}.approach-sign::after{content:'';position:absolute;left:0;bottom:0;width:100%;height:10px;border-top:1px solid #3459e885;border-radius:50%;transform:rotate(-2deg)}
.lesson-steps{counter-reset:lesson}.lesson-steps article{position:relative}.lesson-steps article::before{content:'';position:absolute;width:7px;height:7px;border:1px solid #3459e8;background:var(--bg);border-radius:50%;top:-4px;left:0}
.booking-goal-note{color:var(--gold)!important;font-size:.8125rem!important;border-left:2px solid #3459e8;padding-left:14px;max-width:350px}
.goal-tabs{grid-template-columns:repeat(auto-fit,minmax(min(100%,12rem),1fr))}
.goal-tabs button{overflow-wrap:anywhere}.showcase-numbers{flex-wrap:wrap}
.showcase-panel{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}
.secondary-result{flex-wrap:wrap}.showcase-bottom,.showcase-method{min-width:0}
@media(min-width:701px) and (max-width:1100px){.site-header nav{gap:14px;font-size:.8125rem}.scene-sticky{column-gap:15px}.scene-heading h2{font-size:2.7rem}.goal-panel{gap:38px}.goal-tabs button{padding:17px 13px;gap:9px;font-size:.8125rem}.showcase-panel{column-gap:45px}.showcase-numbers{letter-spacing:-5px}.result-flight{max-width:90px}.showcase-method{grid-template-columns:1fr}.showcase-method ol{gap:20px}}
@media(max-width:700px){
 .scene-sticky{grid-template-columns:1fr;grid-template-rows:auto auto auto;gap:0;padding-block:52px 40px;min-height:0}
 .scene-heading{grid-row:1}.scene-heading .eyebrow{margin-bottom:17px;font-size:.5rem}.scene-heading h2{font-size:2.25rem;letter-spacing:-1.6px;line-height:1.14}.scene-intro{font-size:.8125rem;margin-top:18px}.scene-intro br{display:none}
 .scene-visual{grid-column:1;grid-row:2;margin:12px -4px 0}.scene-formula{font-size:1.4375rem;margin-bottom:-8px}.scene-answer{right:2%;bottom:1%;padding:7px 11px;border-radius:8px}.scene-answer>span{font-size:.375rem;letter-spacing:.6px}.scene-answer strong{font-size:1.125rem}.scene-answer i{margin-left:12px}
 .scene-steps{grid-row:3;flex-direction:row;gap:14px;margin-top:22px;justify-content:space-between}.scene-steps li{flex:1;display:block;min-width:0}.scene-steps li>span{font-size:.5rem}.scene-steps strong{font-size:.625rem;line-height:1.55;display:block}.scene-steps p{display:none}
 .scene-animated .scene-sticky{padding-block:30px 40px}.scene-animated .scene-scroll-cue{bottom:4px;font-size:.4375rem;letter-spacing:.8px;margin:0}.scene-scroll-cue span{font-size:.9375rem}
 .goals-section{padding-block:60px}.goals-heading{display:block;margin-bottom:27px}.goals-heading>p{margin-top:22px;font-size:.8125rem}.goals-heading>p br{display:none}
 .goal-tabs{gap:4px;padding:5px;border-radius:12px;margin-bottom:28px}.goal-tabs button{display:block;padding:12px 8px;font-size:.6875rem;line-height:1.6;border-radius:8px}.goal-tab-index{display:block;font-size:.4375rem;margin-bottom:5px}.goal-tab-arrow{display:none}
 .goal-tabs{grid-template-columns:repeat(auto-fit,minmax(min(100%,5.5rem),1fr))}
 .goal-panel{grid-template-columns:1fr;gap:26px;margin-block:28px}.goal-copy h3{font-size:2rem;letter-spacing:-1.25px}.goal-copy .eyebrow{font-size:.5rem}.goal-copy>p:not(.eyebrow){font-size:.875rem}.goal-topics{gap:6px;margin:20px 0}.goal-topics li{font-size:.625rem;padding:5px 10px}.goal-cta{font-size:.75rem;gap:15px}
 .goal-example{padding:19px 20px 5px;border-radius:16px}.example-label{font-size:.4375rem}.goal-example h4{font-size:.9375rem}.example-solution summary{font-size:.75rem}.example-solution p{font-size:.75rem}
 .result-showcase{padding-block:34px}.showcase-top .eyebrow{font-size:.4375rem;letter-spacing:.9px}.showcase-star{font-size:1.75rem}.showcase-panel{grid-template-columns:1fr;gap:35px;padding-top:29px}.showcase-score{max-width:450px;width:100%;justify-self:center;padding-bottom:0}
 .showcase-panel{grid-template-columns:minmax(0,1fr)}
 .showcase-numbers{font-size:clamp(5.5rem,23vw,8rem);letter-spacing:-5px;gap:14px;justify-content:space-between}.result-flight{max-width:110px}.showcase-score>p{font-size:.5rem;margin-top:16px;letter-spacing:1.2px}.score-underline{bottom:-22px}
 .showcase-copy{padding-top:15px}.showcase-copy h3{font-size:2rem;letter-spacing:-1px;margin-bottom:17px}.showcase-copy>p{font-size:.8125rem;max-width:100%}
 .showcase-method{grid-column:1;grid-template-columns:1fr;gap:15px;padding-top:20px}.showcase-method>p{font-size:.4375rem}.showcase-method ol{grid-template-columns:1fr;gap:12px}.showcase-method li{font-size:.8125rem;gap:14px}
 .showcase-bottom{grid-column:1;display:flex;flex-direction:column;align-items:flex-start;gap:22px;margin-top:-10px;padding-top:21px}.showcase-bottom>p{font-size:.5625rem}.secondary-result{width:100%;justify-content:space-between;gap:15px}.secondary-result>span{font-size:.4375rem}.secondary-result strong{font-size:2rem}
 .approach-section{padding-block:65px}.booking-goal-note{font-size:.75rem!important}
}
@media(prefers-reduced-motion:reduce){.scene-steps li{opacity:1!important}.result-showcase.draw-ready .draw-stroke{stroke-dashoffset:0}.scene-scroll-cue{display:none!important}}