/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-serif:ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.fixed{position:fixed}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.z-2{z-index:2}.z-5\!{z-index:5!important}.table{display:table}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}}:root{--ink:#10283d;--navy:#142f48;--navy-2:#0b2032;--teal:#16888c;--teal-light:#dceeed;--gold:#e1a52c;--coral:#dc684b;--paper:#f7f5ef;--white:#fffefa;--muted:#61717b;--line:#d4ddd9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);font-family:var(--font-sans), system-ui, sans-serif;margin:0}button,input,select{font:inherit}a{color:inherit;text-decoration:none}.topbar{border-bottom:1px solid var(--line);z-index:50;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#f7f5efeb;justify-content:space-between;align-items:center;height:76px;padding:0 clamp(22px,5vw,76px);display:flex;position:sticky;top:0}.brand{align-items:center;gap:12px;display:inline-flex}.brand span{background:var(--navy);width:38px;height:38px;color:var(--gold);font:700 12px/1 var(--font-mono);letter-spacing:-.5px;border-radius:50%;place-items:center;display:grid}.brand b{font:600 14px/1.05 var(--font-serif)}.navlinks{align-items:center;gap:28px;font-size:14px;font-weight:600;display:flex}.navlinks a:hover{color:var(--teal)}.pdf-link{border:1px solid var(--navy);border-radius:99px;padding:10px 16px}.menu-button{border:1px solid var(--line);background:var(--white);border-radius:99px;padding:8px 14px;display:none}.hero{background:var(--navy);color:#fff;grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);align-items:center;min-height:690px;padding:76px clamp(24px,7vw,110px) 82px;display:grid;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(circle at 78% 45%,#16888c2e,#0000 30%),linear-gradient(110deg,#0000 65%,#ffffff08);position:absolute;inset:0}.hero-copy{z-index:2;max-width:670px;position:relative}.kicker,.eyebrow{color:var(--gold);text-transform:uppercase;letter-spacing:.16em;margin:0 0 16px;font-size:12px;font-weight:750}.hero h1{font:600 clamp(62px, 7vw, 104px)/.89 var(--font-serif);letter-spacing:-.055em;margin:0}.hero h1 span{color:#b8dedd}.lede{color:#d7e0e4;max-width:620px;font:400 clamp(18px, 2vw, 23px)/1.5 var(--font-serif);margin:30px 0}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:30px;display:flex}.button{border-radius:6px;justify-content:center;align-items:center;min-height:48px;padding:0 21px;font-size:14px;font-weight:700;transition:transform .18s,background .18s;display:inline-flex}.button:hover{transform:translateY(-2px)}.button.primary{background:var(--gold);color:var(--navy-2)}.button.quiet{color:#fff;border:1px solid #ffffff59}.hero-meta{color:#aac0ca;text-transform:uppercase;letter-spacing:.08em;flex-wrap:wrap;gap:24px;margin-top:36px;font-size:12px;display:flex}.hero-meta span:before{content:"•";color:var(--gold);margin-right:9px}.hero-orbits{justify-self:center;place-items:center;width:470px;height:470px;display:grid;position:relative}.orbit{border:1px solid #76cac973;border-radius:50%;position:absolute}.o1{width:130px;height:130px}.o2{width:230px;height:230px}.o3{width:330px;height:330px}.o4{width:430px;height:430px}.hero-orbits>i{background:var(--gold);border-radius:50%;width:9px;height:9px;position:absolute}.hero-orbits>i:nth-of-type(3n){background:var(--coral);width:12px;height:12px}.hero-orbits>i:nth-of-type(4n){background:#6ac4c2}.hero-formula{font:500 28px/1 var(--font-serif);background:#0b2032e6;border:1px solid #ffffff24;border-radius:8px;padding:17px 21px;box-shadow:0 18px 60px #00000047}.hero-formula span{color:#9ec5c5;font:11px/1 var(--font-mono);text-align:center;margin-top:8px;display:block}.manifesto{background:var(--gold);min-height:98px;color:var(--navy);flex-wrap:wrap;justify-content:center;align-items:center;gap:clamp(10px,2vw,30px);padding:22px 5vw;display:flex}.manifesto p{font:600 clamp(17px, 2vw, 25px)/1 var(--font-serif);margin:0}.manifesto i{opacity:.52;font-style:normal}.section{padding:100px clamp(22px,6vw,92px)}.section-heading{grid-template-columns:minmax(0,1.05fr) minmax(280px,.75fr);align-items:end;gap:60px;max-width:1200px;margin:0 auto 50px;display:grid}.section-heading .eyebrow{color:var(--teal);margin-bottom:10px}.section-heading h2{font:600 clamp(40px, 5vw, 66px)/1.02 var(--font-serif);letter-spacing:-.045em;margin:0}.section-heading>p{color:var(--muted);font:400 18px/1.65 var(--font-serif);margin:0}.chapter-grid{grid-template-columns:repeat(4,1fr);gap:14px;max-width:1200px;margin:auto;display:grid}.chapter-card{background:var(--white);border:1px solid var(--line);flex-direction:column;min-height:265px;padding:25px;transition:transform .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden}.chapter-card:hover{transform:translateY(-4px);box-shadow:0 18px 45px #10283d17}.chapter-card:after{content:"";border:18px solid var(--card-accent);opacity:.1;border-radius:50%;width:92px;height:92px;position:absolute;top:-30px;right:-30px}.chapter-card.teal{--card-accent:var(--teal)}.chapter-card.gold{--card-accent:var(--gold)}.chapter-card.coral{--card-accent:var(--coral)}.chapter-card>span{color:var(--card-accent);font:700 13px/1 var(--font-mono)}.chapter-card>p{color:var(--teal);text-transform:uppercase;letter-spacing:.08em;margin:30px 0 10px;font-size:11px;line-height:1.35}.chapter-card h3{font:600 23px/1.12 var(--font-serif);margin:0}.chapter-card em{color:var(--muted);font:400 14px/1.5 var(--font-serif);margin-top:auto;padding-top:24px}.course-cta{background:var(--teal-light);border-left:4px solid var(--teal);justify-content:space-between;align-items:center;gap:30px;max-width:1200px;margin:22px auto 0;padding:24px 28px;display:flex}.course-cta div{gap:5px;display:grid}.course-cta span{color:var(--muted);font-size:14px}.course-cta a{color:var(--teal);white-space:nowrap;font-weight:750}.labs-section{background:var(--navy-2);color:#fff}.section-heading.light .eyebrow{color:var(--gold)}.section-heading.light>p{color:#b5c5cc}.labs-stack{gap:28px;max-width:1200px;margin:auto;display:grid}.lab-card{background:var(--paper);color:var(--ink);border-radius:14px;padding:clamp(22px,4vw,48px);overflow:hidden;box-shadow:0 20px 80px #0000002e}.lab-header{border-bottom:1px solid var(--line);grid-template-columns:60px 1fr;gap:22px;margin-bottom:28px;padding-bottom:28px;display:grid}.lab-index{background:var(--navy);width:56px;height:56px;color:var(--gold);font:700 13px/1 var(--font-mono);border-radius:50%;place-items:center;display:grid}.lab-header .eyebrow{color:var(--teal);margin:2px 0 6px}.lab-header h3{font:600 clamp(28px, 3vw, 42px)/1.08 var(--font-serif);margin:0}.lab-header p:last-child{color:var(--muted);margin:8px 0 0}.control-row{align-items:end;gap:12px;margin-bottom:28px;display:flex}.control-row.wrap{flex-wrap:wrap}.field{gap:7px;min-width:135px;display:grid}.field.grow{flex:1;min-width:240px}.field span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:700}.field input[type=number],.field select{width:100%;height:44px;color:var(--ink);background:#fff;border:1px solid #bfcac7;border-radius:5px;padding:0 12px}.field input[type=range]{accent-color:var(--teal);width:100%}.euclid-layout,.clock-layout,.necklace-layout{grid-template-columns:minmax(280px,.92fr) minmax(320px,1.08fr);align-items:center;gap:clamp(30px,5vw,70px);display:grid}.rectangle-stage{place-items:center;min-height:310px;display:grid}.rectangle{border:2px solid var(--teal);background:#d4e9e7;place-items:center;width:min(100%,460px);max-height:280px;display:grid;position:relative;overflow:hidden}.rectangle strong{z-index:3;font:600 24px/1 var(--font-serif);color:var(--teal)}.rectangle em{z-index:3;color:var(--muted);font-size:12px;position:absolute;bottom:9px;right:12px}.tile-band{opacity:.7;border-left:1px solid;height:100%;position:absolute;top:0;right:0}.band-0{color:var(--gold);background:repeating-linear-gradient(0deg,#efdca9 0 22%,#d49a22 23% 24%)}.band-1{color:var(--coral);background:repeating-linear-gradient(90deg,#f4c5b8 0 22%,#d35e43 23% 24%);right:4%}.band-2{color:var(--teal);opacity:.4;right:8%}.band-3{color:var(--navy);opacity:.2;right:12%}.measure{border-top:2px solid var(--coral);color:var(--coral);text-align:center;padding-top:6px;font-size:12px}.proof-trace{gap:8px;display:grid}.division{border:1px solid var(--line);font:500 16px/1.2 var(--font-mono);background:#fff;grid-template-columns:1fr auto 1.5fr auto .7fr;gap:9px;padding:10px 13px;display:grid}.division b{color:#93a0a4}.division mark{background:var(--teal-light);color:var(--teal);text-align:center}.bezout{background:var(--navy);color:#fff;gap:7px;margin-top:12px;padding:16px;display:grid}.bezout span{color:var(--gold);text-transform:uppercase;letter-spacing:.1em;font-size:11px}.bezout strong{font:500 18px/1.4 var(--font-serif)}.cf-display{background:var(--navy);color:#fff;font:500 clamp(24px,4vw,40px)/1 var(--font-serif);flex-wrap:wrap;justify-content:center;align-items:center;gap:7px;padding:23px;display:flex}.cf-term{color:var(--gold)}.convergents{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-top:18px;display:grid}.convergent{border:1px solid var(--line);background:#fff;padding:13px}.convergent>div:first-child{justify-content:space-between;align-items:center;gap:8px;display:flex}.convergent strong{text-align:center;font:600 16px/1 var(--font-serif);display:grid}.convergent strong i{border-top:1px solid;margin:3px 0}.convergent span{color:var(--muted);font-size:10px}.error-track{background:#e7ece9;height:4px;margin-top:11px}.error-track span{background:var(--teal);height:100%;display:block}.clock{background:#fff;border:2px solid #adc5c3;border-radius:50%;width:280px;height:280px;margin:20px auto;position:relative}.hour{background:var(--paper);width:32px;height:32px;font:600 11px/1 var(--font-mono);border:1px solid #b8c5c3;border-radius:50%;place-items:center;margin:-16px;transition:all .2s;display:grid;position:absolute;top:50%;left:50%}.hour.start{background:var(--gold);border-color:var(--gold)}.hour.result{background:var(--coral);color:#fff;border-color:var(--coral);transform-origin:50%!important}.hour.start.result{box-shadow:0 0 0 5px #16888c47}.clock-center{text-align:center;place-content:center;display:grid;position:absolute;inset:0}.clock-center small{color:var(--muted)}.clock-center strong{font:600 36px/1 var(--font-serif)}.clock-notes{min-width:0}.equation{background:var(--navy);color:#fff;flex-wrap:wrap;align-items:baseline;gap:13px;padding:18px 20px;display:flex}.equation strong{font:600 28px/1 var(--font-serif)}.equation span{color:var(--gold)}.equation small{color:#a9c4cc}.micro-label{color:var(--teal);letter-spacing:.1em;text-transform:uppercase;margin:24px 0 10px;font-size:11px;font-weight:750}.unit-list{flex-wrap:wrap;gap:7px;display:flex}.unit-list span{background:var(--teal-light);width:35px;height:35px;color:var(--teal);border-radius:50%;place-items:center;font-weight:700;display:grid}.clock-notes>p:not(.micro-label){color:var(--muted)}.permutation{font:12px/1.5 var(--font-mono);flex-wrap:wrap;gap:8px 14px;display:flex}.permutation b{color:var(--coral)}.necklace{place-items:center;margin:auto;display:grid;position:relative}.necklace-ring{border:3px solid #bed0cf;border-radius:50%;position:absolute;inset:26px}.necklace button{cursor:pointer;border:3px solid #fff;border-radius:50%;width:34px;height:34px;margin:-17px;position:absolute;top:50%;left:50%;box-shadow:0 2px 8px #0000002e}.necklace>span{color:var(--muted);font-size:11px}.orbit-panel{min-width:0}.orbit-list{gap:7px;display:grid}.orbit-list>div{border:1px solid var(--line);background:#fff;align-items:center;gap:6px;min-height:36px;padding:6px 9px;display:flex}.orbit-list b{width:24px;color:var(--muted);font:11px/1 var(--font-mono)}.orbit-list span{border-radius:50%;width:18px;height:18px}.flt-card{background:var(--navy);color:#fff;gap:5px;margin-top:14px;padding:17px;display:grid}.flt-card>span{color:var(--gold);text-transform:uppercase;letter-spacing:.08em;font-size:11px}.flt-card strong{font:500 23px/1.3 var(--font-serif)}.flt-card em{color:#add0d0;font-size:12px}.pascal-wrap{max-width:100%;padding:18px 0;overflow-x:auto}.pascal{width:max-content;margin:auto}.pascal>div{justify-content:center;gap:2px;height:15px;margin-bottom:2px;display:flex}.pascal span{border-radius:2px;width:15px;height:15px}.observation{background:var(--teal-light);border-left:4px solid var(--teal);color:#425b63;padding:15px 18px}.range-wide{width:100%;margin-bottom:22px}.prime-stats{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.prime-stats div{border:1px solid var(--line);background:#fff;min-height:120px;padding:18px;display:grid}.prime-stats span{color:var(--teal);text-transform:uppercase;font-size:12px;font-weight:700}.prime-stats strong{font:600 clamp(28px,4vw,48px)/1 var(--font-serif)}.prime-stats em{color:var(--muted);font-size:11px}.plot-shell{border:1px solid var(--line);background:#fff;margin-top:15px;padding:18px}.prime-canvas{width:100%;height:300px;display:block}.legend{justify-content:center;gap:25px;font-size:12px;display:flex}.legend span:before{content:"";vertical-align:middle;width:18px;height:3px;margin-right:7px;display:inline-block}.legend .exact:before{background:var(--teal)}.legend .estimate:before{background:var(--coral)}.cheb-strip{border-left:4px solid var(--coral);background:#f7e8e3;flex-wrap:wrap;justify-content:space-between;gap:20px;margin-top:14px;padding:15px 18px;display:flex}.cheb-strip span{color:var(--muted)}.cheb-strip strong{color:var(--coral);font-family:var(--font-serif)}.practice-section{background:var(--paper)}.practice-grid{grid-template-columns:repeat(3,1fr);gap:16px;max-width:1200px;margin:auto;display:grid}.practice-grid article{background:var(--white);border-top:4px solid var(--teal);padding:30px}.practice-grid article:nth-child(2){border-color:var(--gold)}.practice-grid article:nth-child(3){border-color:var(--coral)}.practice-grid article>span{color:var(--muted);font:700 12px/1 var(--font-mono)}.practice-grid h3{font:600 30px/1 var(--font-serif);margin:22px 0 8px}.practice-grid p{min-height:50px;color:var(--muted)}.practice-grid strong{color:var(--teal);text-transform:uppercase;letter-spacing:.1em;margin-top:28px;font-size:11px;display:block}.practice-grid blockquote{font:500 17px/1.5 var(--font-serif);margin:8px 0 0}.closing{background:var(--navy);color:#fff;grid-template-columns:1fr 280px;align-items:center;gap:70px;padding:100px clamp(24px,8vw,130px);display:grid}.closing>div:first-child{max-width:790px}.closing h2{font:600 clamp(42px,6vw,72px)/1.04 var(--font-serif);letter-spacing:-.04em;margin:0}.closing p:not(.eyebrow){color:#b6c7cf;font:400 19px/1.6 var(--font-serif)}.closing-mark{width:250px;height:250px;color:var(--gold);font:500 92px/1 var(--font-serif);border:1px solid #fff3;border-radius:50%;place-items:center;display:grid;box-shadow:inset 0 0 0 35px #16888c14}footer{background:var(--navy-2);color:#fff;justify-content:space-between;align-items:center;gap:25px;min-height:130px;padding:30px clamp(22px,6vw,90px);display:flex}.footer p,footer p{color:#91a7b1;font-size:13px}.footer a,footer>a:last-child{color:var(--gold);font-size:13px}@media (width<=1000px){.hero{grid-template-columns:1fr 340px}.hero-orbits{width:360px;height:360px;transform:scale(.78)}.chapter-grid{grid-template-columns:repeat(2,1fr)}.euclid-layout,.clock-layout,.necklace-layout{grid-template-columns:1fr}.rectangle-stage{min-height:250px}.practice-grid,.closing{grid-template-columns:1fr}.closing-mark{display:none}}@media (width<=720px){.topbar{height:68px}.menu-button{display:block}.navlinks{background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:16px;padding:18px 24px;display:none;position:absolute;top:68px;left:0;right:0}.navlinks.open{display:flex}.hero{grid-template-columns:1fr;min-height:auto;padding-top:66px}.hero h1{font-size:58px}.hero-orbits{transform-origin:top;width:300px;height:300px;margin:45px auto -70px;transform:scale(.7)}.manifesto{gap:9px 13px}.manifesto p{font-size:16px}.section{padding:72px 18px}.section-heading{grid-template-columns:1fr;gap:18px}.section-heading h2{font-size:43px}.chapter-grid{grid-template-columns:1fr}.chapter-card{min-height:220px}.course-cta{flex-direction:column;align-items:flex-start}.lab-card{border-radius:8px}.lab-header{grid-template-columns:44px 1fr;gap:13px}.lab-index{width:42px;height:42px}.control-row{flex-direction:column;align-items:stretch}.field{width:100%}.division{gap:4px;padding:9px 7px;font-size:12px}.clock{margin:0 auto;transform:scale(.87)}.necklace{margin-top:-20px;margin-bottom:-20px;transform:scale(.86)}.prime-stats{grid-template-columns:1fr}.prime-stats div{min-height:95px}.prime-canvas{height:230px}.closing{padding:78px 22px}.closing h2{font-size:44px}footer{flex-direction:column;align-items:flex-start}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}