:root{color-scheme:dark;--bg:#0c1014;--surface:#141b22;--ink:#edf0ed;--muted:#a8b5bb;--gold:#ebcc86;--mint:#8ad8c7;--lavender:#c0a9ed;--line:#9db3bb2b;--serif:Georgia,'Times New Roman',serif;--sans:'Segoe UI',system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:6px}h1,h2,h3,p,figure{margin:0}h1,h2{font-family:var(--serif);font-weight:400;line-height:1.12}h3{line-height:1.3;font-weight:600}img,svg{max-width:100%;display:block}[hidden]{display:none!important}.skip-link{position:absolute;top:-80px;left:24px;background:var(--gold);color:var(--bg);padding:10px 18px;z-index:10}.skip-link:focus{top:12px}.ambient{position:absolute;inset:0 0 auto;height:1400px;z-index:-1;pointer-events:none;background:radial-gradient(ellipse at 79% 23%,#4662771b,transparent 39%),radial-gradient(ellipse at 12% 17%,#82704712,transparent 38%),radial-gradient(ellipse at 50% 87%,#424a7a0d,transparent 48%)}
.masthead,main,footer{width:min(1392px,calc(100% - 104px));margin:auto}.masthead{min-height:104px;display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:25px;white-space:nowrap;letter-spacing:-.5px}.brand i{color:var(--gold);font-weight:400}.brand svg{width:35px;height:35px;fill:none;stroke:var(--gold);stroke-width:1.2;filter:drop-shadow(0 0 7px #ebcc8633)}.brand svg circle{fill:var(--gold);stroke:none}.masthead nav{display:flex;align-items:center;gap:29px;font-size:13px;color:var(--muted)}.masthead nav a{transition:color .25s}.masthead nav a:hover{color:var(--ink)}.masthead .nav-launch{color:var(--gold)}.nav-launch span{margin-left:9px}
.eyebrow{font-size:10px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);line-height:1.5}.hero{display:grid;grid-template-columns:.87fr 1.35fr;gap:5%;align-items:center;min-height:615px;padding:66px 0 75px}.hero .eyebrow{font-size:11px;color:var(--gold);display:flex;gap:9px;align-items:center}.eyebrow>span{width:5px;height:5px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px #ffe6a9}.hero h1{font-size:clamp(66px,6.2vw,91px);letter-spacing:-3px;margin:23px 0 23px;line-height:.99}.hero h1 em{font-weight:400;color:var(--gold);text-shadow:0 0 24px #d7b76b19}.hero-lead{font-size:19px;color:#dbe2e1;line-height:1.55}.hero-description{font-size:14px;max-width:365px;margin:17px 0 27px;color:var(--muted);line-height:1.8}.launch{display:inline-flex;align-items:center;gap:16px;padding:14px 18px;border-radius:10px;font-size:13px;font-weight:600;line-height:1.4;transition:box-shadow .35s,border-color .35s,background .35s}.primary{color:#f4e0ad;background:linear-gradient(155deg,#74603b4d,#302b224d);border:1px solid #e3c47b70;box-shadow:inset 0 1px 0 #ffffd826,0 2px 8px #0005,0 0 23px #dfbd6420}.primary:hover{border-color:#f9dd9aba;box-shadow:inset 0 1px 0 #ffffd83d,0 3px 12px #0007,0 0 34px #dfbd6436;background:linear-gradient(155deg,#8e75454d,#44362666)}.play{font-size:10px}.launch-note{font-size:11px;color:#788c97;margin-top:13px}.glass{background:linear-gradient(140deg,#23303b3d,#10171ee6 61%);border:1px solid #a9c5d036;border-radius:18px;box-shadow:inset 0 1px 0 #d9e9f311,0 18px 65px #0003;overflow:hidden}.hero-preview{transform:perspective(1700px) rotateY(-3deg);border-color:#abc7d147;box-shadow:inset 0 1px 0 #fff1,0 30px 80px #0005,0 0 80px #60879108;transition:border-color .45s,box-shadow .45s}.hero-preview:hover{border-color:#c7d9dd7a;box-shadow:inset 0 1px 0 #fff2,0 30px 80px #0005,0 0 65px #91b7c21a}.window-bar{display:flex;align-items:center;gap:16px;min-height:38px;padding:10px 16px;font-size:9px;letter-spacing:.035em;color:#92a4ae;border-bottom:1px solid #99b5c91b}.window-dots{display:flex;gap:5px}.window-dots i{width:5px;height:5px;background:#607c896b;border-radius:50%}.window-dots i:first-child{background:#d8bd7669}.live-mark{margin-left:auto;color:var(--mint)}.preview-link{display:block;position:relative;background:#10171d}.preview-schematic{width:100%;height:auto}.preview-link img{width:100%;height:auto;aspect-ratio:720/470;object-fit:contain}.preview-open{position:absolute;right:14px;bottom:15px;display:flex;align-items:center;gap:17px;padding:10px 13px;background:#0c121cda;border:1px solid #91b6c34d;border-radius:8px;box-shadow:0 3px 18px #0005;font-size:10px;color:#c4d5dc;backdrop-filter:blur(10px)}.hero-preview figcaption{padding:12px 16px;font-size:11px;color:#8ea3ad;border-top:1px solid #9bb4c017}.svg-label{font:10px var(--sans);fill:#b3c3cf;letter-spacing:.8px}.svg-label.gold{fill:var(--gold)}.svg-small{font:11px var(--sans);fill:#8398a9}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:28px}.section-heading h2{font-size:35px;letter-spacing:-.7px;margin-top:10px}.section-heading>p{font-size:13px;color:#8699a3;line-height:1.6}.investigations{padding-bottom:75px}.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:19px}.mint{--accent:var(--mint);color:var(--mint)}.lavender{--accent:var(--lavender);color:var(--lavender)}.gold{--accent:var(--gold);color:var(--gold)}.route-card{padding:22px 25px 24px;display:flex;flex-direction:column;transition:border-color .45s,box-shadow .45s,background .45s}.route-card:hover{border-color:color-mix(in srgb,var(--accent) 60%,transparent);box-shadow:inset 0 1px 0 #fff2,0 12px 35px #0004,0 0 26px color-mix(in srgb,var(--accent) 9%,transparent);background:linear-gradient(140deg,#31414e4a,#111921)}.route-top{display:flex;align-items:center;justify-content:space-between;font-size:9px;letter-spacing:.1em;text-transform:uppercase;opacity:.9}.route-top>span:last-child{font-size:16px}.route-card svg{width:100%;height:142px;margin:11px 0 18px}.line{stroke:var(--accent);stroke-width:1.65;fill:none}.faint{stroke:#95b2c2;stroke-opacity:.15;stroke-width:1;fill:none}.gold-line{stroke:var(--gold);stroke-width:1;stroke-opacity:.6}.dot{fill:var(--accent)}.faint-box{fill:var(--accent);fill-opacity:.055;stroke:var(--accent);stroke-opacity:.4;stroke-width:1.2}.dashed{stroke-dasharray:4 5}.route-card h3{font-family:var(--serif);font-weight:400;font-size:23px;color:var(--ink);letter-spacing:-.4px}.route-card p{font-size:13px;color:var(--muted);line-height:1.8;margin:13px 0 24px}.route-action{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;line-height:1.5;margin-top:auto;padding-top:14px;border-top:1px solid #adc4cf1a}
.implementation{display:grid;grid-template-columns:1fr 1.2fr;gap:8%;padding:42px 45px;margin-bottom:76px}.implementation h2{font-size:34px;letter-spacing:-.65px;margin:12px 0 19px}.implementation-intro>p:last-child{font-size:13px;color:var(--muted);max-width:420px;line-height:1.85}.backend-study{display:flex;flex-direction:column;justify-content:center;gap:20px}.backend-family{display:grid;grid-template-columns:142px 1fr;align-items:start;gap:12px}.family-label{font-size:11px;color:#92a3ad;padding-top:8px}.backend-chip{display:inline-flex;align-items:center;width:max-content;font-size:11px;padding:6px 11px;border:1px solid color-mix(in srgb,var(--accent) 31%,transparent);border-radius:7px;box-shadow:inset 0 1px 0 #fff1;background:color-mix(in srgb,var(--accent) 5%,transparent)}.backend-chips{display:flex;flex-wrap:wrap;gap:8px}.invariant{display:flex;align-items:flex-start;gap:18px;padding-top:21px;border-top:1px solid #a5bdca21}.invariant>span{font:36px var(--serif);line-height:1;color:var(--mint)}.invariant strong{font-size:12px;font-weight:600;color:#dce5e7}.invariant p{color:#91a6b1;font-size:12px;line-height:1.8;margin-top:7px;max-width:390px}.evidence{margin-bottom:77px}.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px}.evidence-icon{width:39px;height:39px;display:grid;place-items:center;border:1px solid color-mix(in srgb,var(--accent) 23%,transparent);background:color-mix(in srgb,var(--accent) 4%,transparent);border-radius:10px;font:25px var(--serif);margin-bottom:18px}.evidence-grid h3{font-size:15px;letter-spacing:-.1px;margin-bottom:12px}.evidence-grid p{font-size:13px;color:var(--muted);line-height:1.9}
.related{display:grid;grid-template-columns:1fr 1.25fr;gap:7%;padding:38px 44px;background:linear-gradient(135deg,#24213338,#11171dcc);margin-bottom:69px}.related h2{font-size:30px;letter-spacing:-.6px;margin:12px 0 14px}.related>div>p:last-child{font-size:13px;color:var(--muted);line-height:1.8;max-width:350px}.related-links{display:flex;flex-direction:column;justify-content:center}.related-links a{display:flex;gap:21px;align-items:center;padding:24px 6px;border-bottom:1px solid #a2b7c026;transition:background .3s}.related-links a:last-child{border-bottom:none}.related-links a:hover{background:#d2d7ed06}.related-symbol{font:36px var(--serif);width:34px;text-align:center}.related-links a strong{display:block;font-size:14px;color:#d8e0e6;font-weight:500}.related-links a small{display:block;font-size:12px;color:#8ea2b1;line-height:1.65;max-width:390px;margin-top:6px}.related-links a>span:last-child{margin-left:auto;color:#aab5c7;font-size:19px}.scope-history{display:grid;grid-template-columns:1fr 1fr;gap:9%;padding:0 12px 58px}.scope-history h2{font-size:29px;letter-spacing:-.5px;margin:12px 0 19px}.scope-history p:not(.eyebrow){font-size:13px;color:var(--muted);line-height:1.85}.scope-history ul{padding-left:17px;margin:18px 0 0;font-size:12px;color:#8ea0aa;line-height:1.8}.scope-history li{margin-bottom:7px;padding-left:3px}.scope-history li::marker{color:#6c8997}.history .authorship{padding:17px 0 0;margin-top:18px;border-top:1px solid #abbfcb23;color:#c1c9cc}.text-link{display:inline-flex;align-items:center;gap:17px;color:var(--gold);font-size:12px;margin-top:21px;padding-bottom:3px;border-bottom:1px solid #d7b76238}.text-link:hover{border-color:var(--gold);text-shadow:0 0 16px #ffe9b033}.closing-launch{border-top:1px solid var(--line);padding:32px 0 45px;display:flex;align-items:center;justify-content:space-between;gap:20px}.closing-launch>span{font:25px var(--serif);color:#b6c5cb}.closing-launch .launch{font-size:12px}footer{border-top:1px solid var(--line);padding:25px 0 35px;display:flex;align-items:center;gap:32px;color:#718995;font-size:11px}.footer-brand{font-size:19px;color:#b7c8cf}footer>a:last-child{margin-left:auto;color:#a5b7c1}
@media(min-width:1450px){.hero{gap:7%;grid-template-columns:.85fr 1.35fr}.hero-preview{margin-right:-7px}}@media(max-width:1100px){.masthead,main,footer{width:calc(100% - 64px)}.masthead nav{gap:19px}.hero{grid-template-columns:.8fr 1.15fr;gap:4%;min-height:560px;padding:49px 0 58px}.hero h1{font-size:70px}.hero-lead{font-size:17px}.hero-description{font-size:13px}.hero .eyebrow{font-size:9px;letter-spacing:.1em}.launch{font-size:12px;padding:12px 14px;gap:11px}.launch-note{font-size:10px}.live-mark{display:none}.route-card{padding:18px 20px 22px}.route-card h3{font-size:22px}.route-grid{gap:14px}.implementation{padding:33px 32px;gap:5%}.backend-family{grid-template-columns:120px 1fr}.family-label{font-size:10px}.backend-chip{padding:5px 8px}.evidence-grid{gap:30px}.related{padding:32px}.scope-history{gap:7%}}
@media(max-width:820px){.masthead{min-height:83px}.brand{font-size:22px}.masthead nav>a:not(.nav-launch){display:none}.hero{grid-template-columns:1fr;gap:37px;padding:42px 0 56px}.hero-copy{max-width:600px}.hero h1{font-size:79px;display:inline-block;margin:22px 0}.hero h1 br{display:none}.hero h1 em{margin-left:.18em}.hero-lead{font-size:20px}.hero-description{font-size:15px;max-width:550px}.hero-preview{transform:none}.hero .eyebrow{font-size:10px}.hero-preview figcaption,.window-bar{font-size:11px}.preview-open{font-size:12px}.hero .launch{font-size:14px}.launch-note{font-size:12px}.section-heading h2{font-size:32px}.section-heading>p{display:none}.route-grid{grid-template-columns:1fr}.route-card{display:grid;grid-template-columns:155px 1fr;column-gap:23px;padding:24px}.route-top{grid-column:1/-1;margin-bottom:12px;font-size:10px}.route-card svg{grid-column:1;grid-row:2/5;align-self:center;height:auto;margin:0}.route-card h3{grid-column:2;font-size:25px}.route-card p{grid-column:2;margin:11px 0 18px;font-size:14px}.route-action{grid-column:2;font-size:12px}.investigations{padding-bottom:49px}.implementation{grid-template-columns:1fr;gap:27px;margin-bottom:52px}.implementation h2{font-size:32px}.implementation-intro>p:last-child{font-size:14px;max-width:570px}.family-label{font-size:12px}.backend-family{grid-template-columns:146px 1fr}.backend-chip{font-size:12px;padding:6px 10px}.invariant p{font-size:13px}.evidence{margin-bottom:50px}.evidence-grid{gap:21px}.evidence-grid p{font-size:13px}.evidence-grid h3{font-size:15px}.related{grid-template-columns:1fr;gap:15px;margin-bottom:47px}.related>div>p:last-child{max-width:550px;font-size:14px}.related-links a small{font-size:13px}.related-links a{padding:19px 4px}.scope-history{gap:28px;padding:0 0 40px}.scope-history h2{font-size:25px}.scope-history p:not(.eyebrow){font-size:13px}.scope-history ul{font-size:12px}.closing-launch>span{font-size:21px}footer>span{display:none}}
@media(max-width:520px){.masthead,main,footer{width:calc(100% - 36px)}.masthead{min-height:75px}.brand{font-size:21px;gap:9px}.brand svg{width:28px;height:28px}.masthead nav{font-size:11px}.hero{padding-top:31px}.hero h1{font-size:66px;letter-spacing:-2px}.hero h1 br{display:block}.hero h1 em{margin-left:0}.hero-lead{font-size:18px}.hero-description{font-size:14px}.hero .eyebrow{font-size:9px}.hero-preview{border-radius:12px}.window-bar{font-size:9px;padding:9px 11px;gap:10px}.hero-preview figcaption{font-size:10px;padding:10px 12px}.preview-open{font-size:10px;padding:7px 9px;bottom:10px;right:9px}.section-heading h2{font-size:30px}.eyebrow{font-size:9px}.route-card{grid-template-columns:1fr;padding:21px}.route-top{grid-column:auto}.route-card svg{grid-column:1;grid-row:auto;height:125px;margin:0 0 17px}.route-card h3,.route-card p,.route-action{grid-column:1}.route-card p{font-size:14px}.route-card h3{font-size:25px}.route-action{font-size:12px}.implementation{padding:26px 22px}.implementation h2{font-size:30px}.backend-family{grid-template-columns:1fr;gap:9px}.family-label{padding:0}.backend-study{gap:19px}.evidence-grid{grid-template-columns:1fr;gap:29px}.evidence-icon{float:left;margin:0 17px 0 0}.evidence-grid h3{padding-top:8px;margin-bottom:14px}.evidence-grid p{font-size:14px;clear:both;padding-top:12px}.related{padding:27px 23px}.related h2{font-size:29px}.related-links a{gap:14px}.related-links a strong{font-size:14px}.related-links a small{font-size:12px}.related-symbol{font-size:31px}.scope-history{grid-template-columns:1fr;gap:33px}.scope-history h2{font-size:29px}.scope-history p:not(.eyebrow){font-size:14px}.scope-history ul{font-size:13px}.text-link{font-size:13px}.closing-launch{flex-direction:column;align-items:flex-start;gap:20px;padding-bottom:32px}.closing-launch .launch{font-size:13px}.closing-launch>span{font-size:23px}footer{gap:10px;font-size:10px}.footer-brand{font-size:18px}}
.validation-note{margin-top:27px;padding:16px 20px;border:1px solid #b4c5cc25;border-radius:10px;background:#a8b8ce04;font-size:13px;line-height:1.8;color:var(--muted)}.validation-note strong{font-weight:600;color:#cad4d8}.evidence code{font:12px ui-monospace,Consolas,monospace;color:#c2bbd8}
.boundary-note{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;margin-top:14px;padding:17px 20px;border:1px solid #c0a9ed42;border-radius:11px;background:linear-gradient(110deg,#c0a9ed0d,#8ad8c706);box-shadow:inset 0 1px #fff1,0 0 28px #bba5ed0a;color:#aebbc0;font-size:13px;line-height:1.8}.boundary-note strong{color:#e0d5f3;font-weight:600}.boundary-note code{font:12px ui-monospace,Consolas,monospace;color:#d7c6f4}.boundary-note a{color:var(--gold);white-space:nowrap;border-bottom:1px solid #ebcc8652}.boundary-note a:hover{border-color:var(--gold);text-shadow:0 0 14px #ffe9b02e}.boundary-mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid #c0a9ed52;border-radius:9px;color:var(--lavender);font:22px var(--serif);box-shadow:0 0 18px #c0a9ed14}
@media(max-width:520px){.boundary-note{grid-template-columns:1fr;gap:10px;padding:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.hero-preview{transform:none}}