:root{--ink:#1F2124;--graphite:#2C2F34;--slate:#43474E;--steel:#6E737B;--fog:#C9CCD1;--mist:#E4E6E9;--paper:#F1F2F4;--amber:#E8A33D;--amber-d:#B97A1C;--head:"Familjen Grotesk",system-ui,sans-serif;--body:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:ui-monospace,"Cascadia Code","Consolas","DejaVu Sans Mono",monospace;--wrap:1160px;--hh:64px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hh) + 16px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--graphite);font:17px/1.65 var(--body);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
h1,h2,h3,h4{font-family:var(--head);line-height:1.15;margin:0 0 .5em;color:var(--ink);letter-spacing:-.01em}
h1{font-size:clamp(2.3rem,5.2vw,3.9rem);font-weight:700}
h2{font-size:clamp(1.75rem,3.4vw,2.5rem);font-weight:700}
h3{font-size:1.25rem;font-weight:600}
p{margin:0 0 1em}
code,pre,kbd{font-family:var(--mono);font-size:.92em}
:not(pre)>code{background:var(--mist);padding:.1em .35em;border-radius:4px;color:var(--ink)}
kbd{background:var(--graphite);color:var(--mist);padding:.12em .45em;border-radius:4px;border-bottom:2px solid var(--ink)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--amber);color:var(--ink);padding:8px 14px;z-index:99}.skip:focus{left:8px}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--graphite);border-bottom:1px solid var(--slate)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:var(--hh);gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--mist);font:700 1.3rem var(--head)}
.brand img{width:36px;height:36px}
.nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav a{display:block;padding:8px 12px;text-decoration:none;color:var(--fog);font-size:.95rem;border-radius:6px;position:relative}
.nav a:hover{color:#fff;background:var(--slate)}
.nav a.is-active{color:#fff}.nav a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;background:var(--amber);border-radius:2px}
.nav .nav-cta{background:var(--amber);color:var(--ink);font-weight:700;margin-left:6px}.nav .nav-cta:hover{background:#F0B65C;color:var(--ink)}
.menu-btn{display:none;background:none;border:1px solid var(--steel);color:var(--mist);border-radius:6px;padding:7px 10px;cursor:pointer;font:inherit}
@media (max-width:900px){.menu-btn{display:block}.nav{position:absolute;top:var(--hh);left:0;right:0;background:var(--graphite);border-bottom:1px solid var(--slate);display:none}.nav.open{display:block}.nav ul{flex-direction:column;padding:10px 16px 16px}.nav .nav-cta{margin:6px 0 0;text-align:center}}
/* execution rail */
.rail{position:fixed;left:14px;top:calc(var(--hh) + 24px);bottom:24px;width:4px;background:var(--fog);border-radius:4px;z-index:40}
.rail span{position:absolute;left:-3px;width:10px;height:40px;background:var(--amber);border-radius:3px;top:0;transition:top .12s linear}
@media (max-width:1260px){.rail{display:none}}
/* hero */
.hero{background:var(--ink);color:var(--fog);padding:72px 0 80px}
.hero .wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:center}
.hero h1{color:#fff}
.hero-lead{font-size:1.15rem;max-width:34em;color:var(--fog)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero figure{margin:0;border-radius:12px;overflow:hidden;box-shadow:0 30px 60px -20px #000}
.hero-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:26px;font-size:.92rem;color:var(--steel)}
.hero-meta b{color:var(--mist);font-weight:700}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}.hero{padding:48px 0 56px}}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:8px;text-decoration:none;font-weight:700;font-family:var(--head);font-size:1.05rem;border:2px solid transparent;cursor:pointer}
.btn-amber{background:var(--amber);color:var(--ink)}.btn-amber:hover{background:#F0B65C}
.btn-ghost{border-color:var(--steel);color:var(--mist)}.btn-ghost:hover{border-color:var(--fog);color:#fff}
.btn-dark{background:var(--graphite);color:var(--mist)}.btn-dark:hover{background:var(--slate)}
.btn svg{width:20px;height:20px}
/* sections */
.sec{padding:84px 0}
.sec-light{background:var(--paper)}.sec-mid{background:var(--mist)}
.sec-dark{background:var(--graphite);color:var(--fog)}.sec-dark h2,.sec-dark h3{color:#fff}.sec-dark :not(pre)>code{background:var(--slate);color:var(--mist)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head p{font-size:1.08rem}
/* download */
.download{background:var(--slate);color:var(--mist);padding:56px 0}
.download h2{color:#fff}
.dl-file{display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center;background:var(--graphite);border:1px solid var(--steel);border-left:6px solid var(--amber);border-radius:10px;padding:22px 26px;margin-top:22px}
.dl-file .ico{width:56px;height:56px}
.dl-name{font:600 1.15rem var(--mono);color:#fff;word-break:break-all}
.dl-specs{display:flex;flex-wrap:wrap;gap:6px 22px;font-size:.92rem;color:var(--fog);margin-top:4px}
.dl-note{font-size:.9rem;color:var(--fog);margin-top:14px}
@media (max-width:700px){.dl-file{grid-template-columns:1fr}.dl-file .ico{display:none}}
/* features */
.feat{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px}
.feat div{padding:22px 0 18px;border-top:2px solid var(--fog)}
.feat div:first-child,.feat div:nth-child(2){border-top-color:var(--graphite)}
.feat h3{margin-bottom:.3em}.feat p{margin:0}
@media (max-width:760px){.feat{grid-template-columns:1fr}.feat div:nth-child(2){border-top-color:var(--fog)}}
/* steps */
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:14px;max-width:820px}
.steps li{counter-increment:s;display:grid;grid-template-columns:52px 1fr;gap:18px;background:var(--slate);border-radius:10px;padding:20px 22px}
.steps li::before{content:counter(s);font:700 1.4rem var(--head);color:var(--ink);background:var(--amber);width:44px;height:44px;border-radius:8px;display:grid;place-items:center}
.steps h3{margin:.2em 0 .25em;font-size:1.12rem}.steps p{margin:0}
/* code */
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.two>*{min-width:0;max-width:100%}
@media (max-width:900px){.two{grid-template-columns:minmax(0,1fr);gap:32px}}
pre{background:var(--ink);color:var(--mist);padding:22px 24px;border-radius:10px;overflow-x:auto;-webkit-overflow-scrolling:touch;line-height:1.6;margin:0 0 1.2em;border-left:4px solid var(--amber);max-width:100%;box-sizing:border-box}
@media (max-width:480px){pre{padding:16px 14px}}
pre .k{color:#9FB3C8}pre .s{color:var(--amber)}pre .c{color:var(--steel)}pre .t{color:#B9C7A5}pre .n{color:#D9B38C}
/* tables */
.tbl{overflow-x:auto;border-radius:10px;border:1px solid var(--fog);background:#fff}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.96rem}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--mist);vertical-align:top}
th{background:var(--graphite);color:var(--mist);font-family:var(--head);font-weight:600}
tr:last-child td{border-bottom:0}
td code{white-space:nowrap}
/* reqs */
.reqs{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--fog);border:2px solid var(--fog);border-radius:10px;overflow:hidden;margin:0}
.reqs div{background:var(--paper);padding:20px}
.reqs dt{font-size:.88rem;color:var(--steel)}.reqs dd{margin:4px 0 0;font:600 1.1rem var(--head);color:var(--ink)}
@media (max-width:800px){.reqs{grid-template-columns:1fr 1fr}}
/* guide cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{background:var(--paper);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;border:1px solid var(--fog)}
.sec-dark .card{background:var(--slate);border-color:var(--steel)}
.card img{aspect-ratio:1200/630;object-fit:cover;width:100%}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:1.2rem}.card h3 a{text-decoration:none}.card h3 a:hover{text-decoration:underline;text-decoration-color:var(--amber)}
.card p{font-size:.97rem;flex:1}
.read{font-weight:700;color:var(--ink);text-decoration:none;border-bottom:2px solid var(--amber);align-self:flex-start;padding-bottom:2px}
.sec-dark .read{color:#fff}
.center-cta{text-align:center;margin-top:40px}
@media (max-width:900px){.cards{grid-template-columns:1fr 1fr}}@media (max-width:620px){.cards{grid-template-columns:1fr}}
/* faq */
#faq .sec-head{max-width:860px;margin-inline:auto;text-align:center;margin-bottom:40px}
#faq .sec-head h2,#faq .sec-head p{text-align:center;margin-inline:auto}
.faq{max-width:860px;margin-inline:auto}
.faq details{border-bottom:1px solid var(--fog)}
.faq summary{list-style:none;cursor:pointer;padding:20px 48px 20px 0;font:600 1.12rem var(--head);color:var(--ink);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:8px;top:50%;width:14px;height:14px;margin-top:-10px;border-right:3px solid var(--steel);border-bottom:3px solid var(--steel);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg);margin-top:-2px;border-color:var(--amber)}
.faq details[open] summary{color:var(--ink)}
.faq .ans{padding:0 0 20px;max-width:46em}
/* compare */
.yes{color:#2E6B3A;font-weight:700}.no{color:#8C3B2E;font-weight:700}
/* footer */
.site-footer{background:var(--ink);color:var(--fog);padding:64px 0 0;font-size:.96rem}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.site-footer .brand{margin-bottom:14px}
.site-footer h4{color:#fff;font-size:1.05rem;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.site-footer a{text-decoration:none;color:var(--fog)}.site-footer a:hover{color:var(--amber)}
.foot-note{font-size:.88rem;color:var(--steel);max-width:30em}
.foot-bar{border-top:1px solid var(--slate);margin-top:48px;padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.88rem;color:var(--steel)}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}
/* to top */
.to-top{position:fixed;right:22px;bottom:22px;width:50px;height:50px;border-radius:12px;background:var(--graphite);border:2px solid var(--amber);color:var(--amber);display:grid;place-items:center;cursor:pointer;z-index:60;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .2s,transform .2s,visibility .2s;box-shadow:0 10px 24px -8px rgba(0,0,0,.5)}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--amber);color:var(--ink)}
.to-top svg{width:24px;height:24px}
/* inner pages */
.page-head{background:var(--ink);color:var(--fog);padding:56px 0 48px}
.page-head h1{color:#fff;font-size:clamp(2rem,4.4vw,3.1rem);max-width:20em}
.page-head p{max-width:42em;font-size:1.1rem;margin:0}
.crumbs{font-size:.9rem;margin-bottom:18px;color:var(--steel)}.crumbs a{color:var(--fog)}.crumbs span{margin:0 6px}
.prose{max-width:760px;margin:0 auto;padding:56px 24px 80px}
.prose h2{font-size:1.75rem;margin-top:1.6em}.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.3em}.prose li{margin-bottom:.4em}
.prose figure{margin:0 0 32px;border-radius:12px;overflow:hidden}
.prose .tbl{margin-bottom:1.4em}
.meta-line{display:flex;gap:18px;flex-wrap:wrap;color:var(--steel);font-size:.92rem;margin-top:16px}
.tip{background:var(--mist);border-left:4px solid var(--amber);padding:16px 20px;border-radius:0 8px 8px 0;margin:0 0 1.2em}
.more{background:var(--mist);padding:64px 0}
.sitemap-list{columns:2;column-gap:48px}.sitemap-list li{break-inside:avoid}
@media (max-width:600px){.sitemap-list{columns:1}}


/* 2026 navigation, download and footer refinements */
.menu-btn{width:48px;height:44px;padding:0;align-items:center;justify-content:center}
.menu-icon{width:24px;height:18px;display:flex;flex-direction:column;justify-content:space-between}
.menu-icon span{display:block;width:100%;height:2px;background:currentColor;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-btn[aria-expanded="true"] .menu-icon span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-btn[aria-expanded="true"] .menu-icon span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] .menu-icon span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.download{padding:72px 0}
.download .wrap{max-width:1120px}
.download h2,.download> .wrap>p{text-align:center}
.download> .wrap>p{max-width:780px;margin-left:auto;margin-right:auto}
.dl-file{grid-template-columns:64px minmax(0,1fr) auto;gap:26px;padding:26px 30px;border-radius:14px;box-shadow:0 16px 34px rgba(0,0,0,.14)}
.dl-name{font-size:1.22rem;word-break:normal}
.dl-note{text-align:center!important;max-width:900px!important;margin:18px auto 0!important}
.site-footer{color:#fff}
.site-footer h4,.site-footer a,.site-footer .brand,.site-footer .brand span,.foot-note,.foot-bar{color:#fff}
.site-footer a:hover{color:var(--amber)}
.foot-note{opacity:.88}
.foot-bar{border-top:1px solid rgba(255,255,255,.24);justify-content:center;text-align:center;font-size:.92rem}
.foot-bar strong{font-weight:700}
.email-text{color:inherit}
@media (max-width:900px){.menu-btn{display:flex}.nav a{padding:11px 12px}.nav ul{gap:2px}}
@media (max-width:700px){.download{padding:56px 0}.dl-file{grid-template-columns:1fr;padding:24px}.dl-file .ico{display:block;margin:0 auto}.dl-file .btn{justify-content:center;width:100%}.dl-file>div{text-align:center}.dl-specs{justify-content:center}}


/* 2026 blue identity refresh based on the supplied VisuAlg mark */
:root{
  --ink:#022F50;
  --graphite:#064F7D;
  --slate:#0A6FAF;
  --steel:#6D97B1;
  --fog:#D9EAF4;
  --mist:#EDF6FB;
  --paper:#F7FBFE;
  --amber:#118ED8;
  --amber-d:#0878BC;
}
body{background:var(--paper);color:#17384d}
.site-header{background:var(--ink);border-bottom-color:rgba(255,255,255,.13)}
.brand img{width:40px;height:40px;object-fit:contain;background:#fff;border-radius:8px;padding:3px}
.nav a:hover{background:rgba(255,255,255,.1)}
.nav a.is-active::after{background:#29A8EF}
.nav .nav-cta,.btn-amber{background:#118ED8;color:#fff}
.nav .nav-cta:hover,.btn-amber:hover{background:#29A8EF;color:#fff}
:focus-visible{outline-color:#29A8EF}
.rail span{background:#118ED8}
.hero{background:linear-gradient(135deg,#022F50 0%,#064F7D 100%)}
.hero-meta{color:#b7d2e2}.hero-meta b{color:#fff}
.btn-ghost{border-color:#7fb2cf;color:#fff}.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.sec-mid,.more{background:#EAF4FA}
.sec-dark{background:#064F7D}
.read{border-bottom-color:#118ED8}
.steps li::before{background:#118ED8;color:#fff}
pre{border-left-color:#118ED8}
.faq details[open] summary::after{border-color:#118ED8}
.to-top{background:#022F50;border-color:#29A8EF;color:#29A8EF}.to-top:hover{background:#118ED8;color:#fff}
.site-footer{background:#022F50}
.site-footer a:hover{color:#69C7FA}
.download{background:linear-gradient(135deg,#064F7D,#075f95)}
.dl-file{background:#022F50;border-color:#3980aa;border-left-color:#29A8EF;box-shadow:0 16px 34px rgba(2,47,80,.22)}

/* lighter, cleaner What is VisuAlg section */
.about-lite{padding:68px 0}
.about-lite .wrap{max-width:1100px}
.about-intro{max-width:760px;margin:0 auto 36px;text-align:center}
.about-intro .eyebrow{display:inline-block;margin-bottom:10px;font:700 .78rem/1 var(--head);letter-spacing:.12em;text-transform:uppercase;color:#0878BC}
.about-intro h2{margin-bottom:14px}
.about-intro p{font-size:1.08rem;line-height:1.65;margin:0;color:#36576b}
.about-points{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.about-points article{background:#fff;border:1px solid #d4e5ef;border-radius:14px;padding:24px;box-shadow:0 10px 28px rgba(2,47,80,.06)}
.about-points h3{font-size:1.08rem;color:#023A61;margin-bottom:8px}
.about-points p{font-size:.95rem;line-height:1.55;color:#547083;margin:0}
@media(max-width:760px){.about-lite{padding:52px 0}.about-points{grid-template-columns:1fr}.about-intro{margin-bottom:26px}}

/* supplied logo + footer disclaimer */
.site-footer .brand img{background:#fff}
.foot-bar{flex-direction:column;align-items:center;gap:6px;padding:20px 0 22px}
.footer-disclaimer{font-size:.84rem;font-weight:400;opacity:.88}
.footer-disclaimer strong{font-weight:700}