/* Applied research, web engineering and software: local Arkemys presentation. */
.rd-page{--rd-accent:#8bc6bd;--rd-surface:#f1f5f5}
.rd-page [hidden]{display:none!important}
.rd-page h1{font-size:clamp(40px,4.15vw,60px);line-height:1.08;letter-spacing:-.045em;font-weight:400}
.rd-page main h2{font-size:clamp(31px,3.2vw,46px);line-height:1.13;letter-spacing:-.04em;font-weight:400}
.rd-page h3{font-family:var(--sans);font-size:20px;font-weight:500;letter-spacing:-.025em;line-height:1.3}
.rd-page p{line-height:1.8}
.rd-breadcrumb{display:flex;flex-wrap:wrap;gap:10px;font-size:11px;line-height:1.5;color:var(--muted);padding-block:26px 0}
.rd-breadcrumb a:hover{text-decoration:underline;text-underline-offset:4px}
.rd-breadcrumb>span[aria-hidden]{color:#9aa6b5}
.rd-hero{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,1fr);gap:7%;padding-block:64px 72px;align-items:start}
.rd-hero-copy{min-width:0}
.rd-hero-copy>p{font-size:15px;max-width:490px;margin-top:25px}
.rd-hero .hero-actions{margin-top:32px;gap:20px;flex-wrap:wrap}
.rd-hero .hero-actions .button,.rd-hero .hero-actions .text-link{font-size:12px}



















/* A single reading path: research, development, then measurement. */
.rd-lab{margin:0;min-width:0;padding:38px 34px;background:#f1f5f4;border:1px solid #dce5e2;border-radius:6px;align-self:center}
.rd-lab-steps{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:40px}
.rd-lab-steps li{position:relative;min-width:0}
.rd-lab-steps li:not(:last-child)::before{content:"";position:absolute;left:27px;top:calc(100% + 5px);width:1px;height:28px;background:#7c9995}
.rd-lab-steps li:not(:last-child)::after{content:"";position:absolute;left:24px;top:calc(100% + 25px);width:7px;height:7px;border-right:1px solid #7c9995;border-bottom:1px solid #7c9995;transform:rotate(45deg)}
.rd-lab-steps a{display:grid;grid-template-columns:56px minmax(0,1fr);align-items:center;gap:22px;min-height:64px;color:var(--ink);text-decoration:none}
.rd-lab-steps a:focus-visible{outline:2px solid #38807c;outline-offset:7px;border-radius:2px}
.rd-lab-icon{display:grid;place-items:center;width:56px;height:56px;background:#fff;border:1px solid #d6e1de;border-radius:4px;color:#436d68}
.rd-lab-icon svg{width:32px;height:32px}
.rd-lab-copy{display:flex;flex-direction:column;gap:7px;min-width:0}
.rd-lab-copy strong{font-size:clamp(21px,1.85vw,27px);line-height:1.25;font-weight:500;letter-spacing:-.035em}
.rd-lab-copy>span{font-size:14px;line-height:1.55;color:#526963}
.rd-lab-steps a:hover strong{color:#386b62}
@media(max-width:1100px){.rd-lab{padding:30px 24px}.rd-lab-steps a{gap:17px}}
@media(max-width:850px){.rd-lab{max-width:650px;width:100%;padding:32px}.rd-lab-copy strong{font-size:25px}}
@media(max-width:620px){.rd-lab{padding:28px 22px}.rd-lab-steps{gap:34px}.rd-lab-steps a{grid-template-columns:44px minmax(0,1fr);gap:17px}.rd-lab-icon{width:44px;height:48px}.rd-lab-icon svg{width:28px;height:28px}.rd-lab-copy strong{font-size:22px}.rd-lab-copy>span{font-size:14px}.rd-lab-steps li:not(:last-child)::before{left:21px;height:22px}.rd-lab-steps li:not(:last-child)::after{left:18px;top:calc(100% + 19px)}}
@media(max-width:360px){.rd-lab{padding:25px 17px}.rd-lab-steps a{gap:14px}.rd-lab-copy strong{font-size:21px}}
.rd-section-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.rd-section-nav a{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;font-size:12px;line-height:1.5;border-block:1px solid var(--line);min-width:0}
.rd-section-nav a:first-child{padding-left:0}.rd-section-nav a:last-child{padding-right:0}
.rd-section-nav a+a{border-left:1px solid var(--line)}
.rd-section-nav a:hover{color:#335b60}
.rd-section-nav a>span{font-size:17px}
.rd-section{padding-block:88px;scroll-margin-top:100px}
.rd-research{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:12%;align-items:center}
.rd-research-copy>p{font-size:14px;margin-top:24px;max-width:540px}
.rd-research-copy strong{font-weight:500;color:var(--ink)}
.rd-research-list{list-style:none;margin:28px 0 20px;padding:0;border-top:1px solid var(--line)}
.rd-research-list li{display:grid;grid-template-columns:1fr 1.15fr;gap:15px;padding:14px 0;border-bottom:1px solid var(--line);font-size:12px;line-height:1.7}
.rd-research-list strong{font-weight:500}.rd-research-list span{color:var(--muted)}
.rd-research-copy>.text-link{font-size:12px}
/* research-message-example:start */
.rd-message-example{width:100%;max-width:440px;justify-self:center;min-width:0;margin:0}
.rd-message-question{display:flex;align-items:center;gap:12px;padding:0 0 21px;font-size:17px;line-height:1.5;color:var(--ink)}
.rd-message-question svg{width:24px;height:24px;flex:0 0 24px;color:#527276}
.rd-message-choice{display:grid;grid-template-columns:1fr 1fr;gap:0;min-width:0;margin:0;padding:0;border:0}
.rd-message-choice>legend,.rd-message-radio{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);clip-path:inset(50%);white-space:nowrap;border:0}
.rd-message-choice>label{display:flex;align-items:center;justify-content:center;min-height:44px;padding:10px 15px;margin:0;font-size:12px;line-height:1.5;color:#617182;border-bottom:1px solid var(--line);cursor:pointer}
.rd-message-radio:checked+label{color:var(--ink);border-bottom:2px solid var(--ink);font-weight:500}
.rd-message-radio:focus-visible+label{outline:2px solid #4b7295;outline-offset:3px}
.rd-message-choice>label:hover{color:var(--ink);background:#f5f7f7}
.rd-message-card{grid-column:1/-1;margin-top:21px;min-width:0;overflow:hidden;background:white;border:1px solid var(--line);border-radius:3px}
.rd-message-photo{display:block;width:100%;height:auto;aspect-ratio:1.65;object-fit:cover;object-position:center}
.rd-message-copy{display:grid;padding:22px 25px 25px}
.rd-message-copy>img{grid-area:1/1;display:block;width:100px;height:27px;object-fit:contain;object-position:left center;filter:grayscale(1)}
.rd-page .rd-message-copy>p{grid-area:2/1;font-family:var(--serif);font-size:clamp(26px,2.5vw,35px);line-height:1.14;letter-spacing:-.035em;min-height:80px;color:var(--ink);margin:19px 0 0}
.rd-message-product{visibility:hidden}
#rd-angle-product:checked~.rd-message-card .rd-message-product{visibility:visible}
#rd-angle-product:checked~.rd-message-card .rd-message-use{visibility:hidden}
.rd-message-example>figcaption{margin-top:14px;font-size:10px;line-height:1.7;color:#617182}
@media(max-width:760px){.rd-message-example{max-width:440px}.rd-message-question{font-size:16px}.rd-message-copy{padding:20px 22px 22px}.rd-page .rd-message-copy>p{font-size:31px;min-height:74px}.rd-message-photo{aspect-ratio:1.55}}
@media(max-width:360px){.rd-message-copy{padding:18px}.rd-page .rd-message-copy>p{font-size:28px}.rd-message-question{font-size:15px}}
/* research-message-example:end */
.rd-reference-section{background:var(--wash)}
.rd-references{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1fr);gap:12%;padding-block:45px;align-items:start}
.rd-references h2{font-size:30px;max-width:420px}
.rd-references p{font-size:12px;margin-top:19px;max-width:400px}
.rd-reference-list{border-top:1px solid #b9c4ce}
.rd-reference-list>a,.rd-reference-authors{position:relative;display:grid;grid-template-columns:1fr;gap:6px;padding:17px 24px 17px 0;border-bottom:1px solid #d2dbe2;font-size:11px;color:var(--muted);line-height:1.5}
.rd-reference-list strong{font-weight:500;font-size:13px;color:var(--ink)}
.rd-reference-list a>span:last-child{position:absolute;right:0;top:24px;color:var(--ink);font-size:17px}
.rd-reference-list a:hover strong{text-decoration:underline;text-underline-offset:4px}
.rd-section-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.72fr);gap:12%;align-items:end;margin-bottom:36px}
.rd-section-intro>p{font-size:14px;max-width:450px}
























.rd-products-section{background:var(--ink);color:white;scroll-margin-top:90px}
.rd-products-section .rd-section-intro>p{color:#bdcbd9}
.rd-products{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid #415166}
.rd-product{padding:30px 28px 0;display:grid;grid-template-rows:auto auto auto 1fr auto;gap:18px;min-width:0}
.rd-product:first-child{padding-left:0}.rd-product:last-child{padding-right:0}
.rd-product+.rd-product{border-left:1px solid #415166}
.rd-product img{width:36px;height:36px;object-fit:contain}
.rd-product h3{font-size:19px;font-weight:400;margin:0}
.rd-product p{color:#bdcbd9;font-size:12px;margin:0}
.rd-product p.rd-product-purpose{font-size:11px;color:var(--rd-accent)}
.rd-product .text-link{font-size:12px;margin-top:10px;border-top:1px solid #415166;padding-top:18px;justify-self:stretch}
.rd-product:hover .text-link{text-decoration:underline;text-underline-offset:5px}
.rd-validation-steps{list-style:none;padding:0;margin:0;counter-reset:steps;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--ink)}
.rd-validation-steps li{counter-increment:steps;padding:24px 22px 0;min-width:0}
.rd-validation-steps li:first-child{padding-left:0}.rd-validation-steps li:last-child{padding-right:0}
.rd-validation-steps li+li{border-left:1px solid var(--line)}
.rd-validation-steps li::before{content:"0" counter(steps);display:block;color:#718392;font-size:10px;margin-bottom:22px}
.rd-validation-steps h3{font-size:16px;margin-bottom:14px}
.rd-validation-steps p{font-size:12px}
.rd-cta-wrap{padding-bottom:70px}
.rd-cta{background:var(--rd-surface);padding:40px 42px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;border:1px solid #d6e2e2}
.rd-cta h2{font-size:clamp(29px,3vw,40px);max-width:650px}
.rd-cta p{font-size:13px;max-width:560px;margin-top:20px}
.rd-cta .button{font-size:12px;background:var(--ink);color:white;border-color:var(--ink)}
.rd-page a:focus-visible{outline:2px solid #38807c;outline-offset:5px}

@media(max-width:1100px){.rd-hero{gap:5%;grid-template-columns:1fr 1fr}.rd-section-nav a{font-size:11px;padding-inline:17px}.rd-research{gap:8%;grid-template-columns:1fr .9fr}.rd-research-list li{grid-template-columns:1fr}.rd-product{padding-inline:21px}.rd-section-intro{gap:8%}.rd-validation-steps li{padding-inline:18px}.rd-validation-steps h3{font-size:15px}}
@media(max-width:850px){.rd-hero{grid-template-columns:1fr;padding-block:48px 50px;gap:36px}.rd-hero-copy{max-width:650px}.rd-hero-copy>p{max-width:590px}.rd-page h1{max-width:700px;font-size:clamp(40px,6vw,52px)}.rd-section-nav a{padding:18px 13px;font-size:10px;gap:10px}.rd-section{padding-block:65px}.rd-research{grid-template-columns:1fr 1fr;gap:6%;align-items:start}.rd-research-copy>p{font-size:13px;margin-top:19px}.rd-references{gap:7%;grid-template-columns:1fr 1fr}.rd-references h2{font-size:28px}.rd-section-intro{grid-template-columns:1fr;gap:20px}.rd-section-intro h2{max-width:650px}.rd-section-intro>p{max-width:600px;font-size:13px}.rd-product h3{font-size:16px}.rd-product{padding-inline:16px}.rd-product p{font-size:11px}.rd-validation-steps{grid-template-columns:1fr 1fr;gap:28px 0}.rd-validation-steps li:nth-child(3){padding-left:0;border-left:0}.rd-validation-steps li:nth-child(2){padding-right:0}.rd-cta{grid-template-columns:1fr;padding:32px;gap:25px}.rd-cta>.button{justify-self:start}}
@media(max-width:620px){.rd-breadcrumb{font-size:10px;padding-top:20px}.rd-page h1{font-size:40px;line-height:1.09}.rd-hero-copy>p{font-size:14px;margin-top:23px}.rd-hero .hero-actions{gap:13px;align-items:flex-start}.rd-hero .hero-actions .button{padding:15px 17px}.rd-section-nav{grid-template-columns:1fr}.rd-section-nav a,.rd-section-nav a:first-child,.rd-section-nav a:last-child{padding:14px 0;font-size:12px;border-left:0}.rd-section-nav a+a{border-top:0}.rd-section{padding-block:54px}.rd-research{grid-template-columns:1fr;gap:36px}.rd-page main h2{font-size:33px}.rd-research-copy>p{font-size:14px}.rd-research-list li{font-size:12px;gap:5px}.rd-references{grid-template-columns:1fr;gap:28px;padding-block:34px}.rd-references h2{font-size:28px}.rd-references p{font-size:13px}.rd-reference-list strong{font-size:13px}.rd-section-intro>p{font-size:14px}.rd-products{grid-template-columns:1fr}.rd-product,.rd-product:first-child,.rd-product:last-child{padding:26px 0;grid-template-columns:36px 1fr;grid-template-rows:auto auto auto auto;gap:12px 16px}.rd-product+.rd-product{border-left:0;border-top:1px solid #415166}.rd-product img{grid-row:1/3}.rd-product h3{font-size:18px;align-self:center}.rd-product p{grid-column:2;font-size:12px}.rd-product .rd-product-purpose{grid-row:2;font-size:11px}.rd-product .text-link{grid-column:1/-1;margin-top:5px;padding-top:15px}.rd-validation-steps{grid-template-columns:1fr;gap:0}.rd-validation-steps li,.rd-validation-steps li:first-child,.rd-validation-steps li:nth-child(3),.rd-validation-steps li:last-child{padding:23px 0;border-left:0;border-bottom:1px solid var(--line)}.rd-validation-steps li::before{margin-bottom:12px}.rd-validation-steps h3{font-size:18px;margin-bottom:10px}.rd-validation-steps p{font-size:13px;max-width:420px}.rd-cta-wrap{padding-bottom:48px}.rd-cta{padding:27px 23px;gap:24px}.rd-cta h2{font-size:31px}.rd-cta p{font-size:13px}}
@media(max-width:360px){.rd-page h1{font-size:36px}.rd-cta{padding-inline:20px}}

/* Academic sources: shared complete logos, in a compact responsive grid. */
.rd-academic{padding-block:0 58px}
.rd-academic .academic-panel{padding:0;margin:0}
.rd-page .rd-academic .academic-title{font-family:var(--sans);font-size:12px;font-weight:400;line-height:1.6;letter-spacing:0;color:var(--muted);margin:0}
.rd-academic .academic-logos{grid-template-columns:repeat(5,minmax(0,1fr));gap:20px 26px;margin-top:22px}
.rd-academic .academic-logo{height:76px}
.rd-academic .academic-mark{max-width:220px}
@media(max-width:1100px){.rd-academic .academic-logos{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 22px}.rd-academic .academic-logo{height:72px}}
@media(max-width:650px){.rd-academic{padding-bottom:40px}.rd-academic .academic-logos{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 18px}.rd-academic .academic-logo{height:58px}.rd-academic .academic-logo:last-child{grid-column:auto}}


/* Client developments: one concise example at a time, with complete client marks. */
.rd-development-intro{margin-bottom:30px;max-width:760px}
.rd-case-tabs{display:flex;flex-wrap:wrap;gap:0 30px;border-bottom:1px solid var(--line)}
.rd-case-tabs button{appearance:none;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--muted);font:inherit;font-size:13px;line-height:1.5;padding:14px 0;min-height:48px;cursor:pointer}
.rd-case-tabs button[aria-selected=true]{border-bottom-color:var(--ink);color:var(--ink);font-weight:500}
.rd-case-tabs button:hover{color:var(--ink)}
.rd-case-tabs button:focus-visible{outline:2px solid #38807c;outline-offset:4px}
.rd-example{display:grid;grid-template-columns:150px minmax(0,1fr);gap:50px;align-items:start;max-width:1060px;padding-top:38px}
.rd-example+.rd-example{margin-top:30px;padding-top:30px;border-top:1px solid var(--line)}
.rd-explorer[data-enhanced] .rd-example+.rd-example{margin-top:0;padding-top:38px;border-top:0}
.rd-example-brand{padding-top:6px;min-width:0}
.rd-example-brand img{display:block;width:140px;height:48px;object-fit:contain;object-position:left center}
.rd-example-copy{min-width:0}
.rd-page .rd-example h3{font-family:var(--serif);font-size:clamp(28px,2.5vw,35px);line-height:1.2;letter-spacing:-.035em;font-weight:400;max-width:730px;margin:0}
.rd-example p{font-size:14px;line-height:1.8;max-width:680px;margin:18px 0 24px}
.rd-example .text-link{font-size:12px}
@media(max-width:850px){.rd-case-tabs{gap:0 24px}.rd-example{grid-template-columns:125px minmax(0,1fr);gap:30px}.rd-example-brand img{width:120px;height:42px}}
@media(max-width:620px){.rd-development-intro{margin-bottom:23px}.rd-case-tabs{gap:0 22px}.rd-case-tabs button{font-size:12px;padding-block:12px}.rd-example{grid-template-columns:minmax(0,1fr);gap:20px;padding-top:28px}.rd-explorer[data-enhanced] .rd-example+.rd-example{padding-top:28px}.rd-example-brand{padding-top:0}.rd-example-brand img{width:120px;height:40px}.rd-page .rd-example h3{font-size:29px}.rd-example p{margin:16px 0 22px}}