@font-face{font-family:Nord;src:url('/assets/nord-regular.woff') format('woff');font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:Saira;src:url('/assets/saira-variable.woff') format('woff');font-style:normal;font-weight:100 900;font-stretch:50% 125%;font-display:swap}
/* artac's original slate #435465 anchors both palettes. All surfaces use one theme.
   Corners: 0 for media and sections, 2px for buttons and inputs.
   Layers: content 0, header 10, native dialogs in the top layer.
   Design: variance 6, motion 4, density 3. */
:root{--content-max-width:1600px;--bg:#111719;--surface:#192124;--raised:#222d32;--text:#f1f3f2;--muted:#a7b2b8;--line:#354146;--accent:#b6cbd9;--brand:#435465;--button:#dce8ed;--button-text:#17252e;--header:rgb(17 23 25 / .94);--contact:#1e2b34;--logo-filter:none;color-scheme:dark;scroll-behavior:smooth;scroll-padding-top:95px}
@media(prefers-color-scheme:light){:root:not([data-theme=dark]){--bg:#f1f3f2;--surface:#e6eaeb;--raised:#dce3e6;--text:#18262e;--muted:#4d606c;--line:#c3cdd2;--accent:#435465;--button:#435465;--button-text:#f6f8f9;--header:rgb(241 243 242 / .96);--contact:#dce4e9;--logo-filter:brightness(0) saturate(100%);color-scheme:light}}
:root[data-theme=light]{--bg:#f1f3f2;--surface:#e6eaeb;--raised:#dce3e6;--text:#18262e;--muted:#4d606c;--line:#c3cdd2;--accent:#435465;--button:#435465;--button-text:#f6f8f9;--header:rgb(241 243 242 / .96);--contact:#dce4e9;--logo-filter:brightness(0) saturate(100%);color-scheme:light}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Saira,Arial,sans-serif;font-size:17px;font-weight:400;line-height:1.55;-webkit-font-smoothing:antialiased}body:has(dialog[open]){overflow:hidden}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{color:inherit;cursor:pointer}img,video{display:block;max-width:100%;height:auto}button{border:0}h1,h2,h3,p,figure{margin:0}h1,h2{font-family:Nord,Arial,sans-serif;font-weight:400;letter-spacing:-.045em;line-height:1.16}h3{font-weight:500;line-height:1.3}h2{font-size:clamp(32px,3.6vw,54px)}p{color:var(--muted)}ul{padding:0;list-style:none}::selection{background:var(--accent);color:var(--bg)}:focus-visible{outline:2px solid var(--accent);outline-offset:5px}summary{cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}[hidden]{display:none!important}.container{max-width:var(--content-max-width);padding-inline:clamp(24px,5vw,80px);margin-inline:auto}.section{padding-block:112px}.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:500;color:var(--accent)}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:32px;min-height:52px;padding:12px 23px;background:var(--button);color:var(--button-text);border:1px solid transparent;border-radius:2px;font-weight:500;font-size:15px;white-space:nowrap;transition:background .2s,transform .2s}.button:hover{background:var(--accent)}.button:active{transform:translateY(1px)}.arrow{display:inline-block;font:25px/1 Arial,sans-serif;transition:transform .25s}.button:hover .arrow,.text-link:hover .arrow,.footer-mail:hover .arrow{transform:translate(2px,-2px)}.text-link{display:inline-flex;gap:28px;align-items:center;font-size:16px;font-weight:500;color:var(--text);padding-block:10px;border-bottom:1px solid var(--line)}.text-link:hover{border-color:var(--accent)}.skip-link{position:fixed;top:8px;left:8px;padding:12px;background:var(--button);color:var(--button-text);z-index:20;transform:translateY(-200%)}.skip-link:focus{transform:translateY(0)}
.header{height:80px;position:sticky;top:0;z-index:10;background:var(--header);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-shell{height:100%;display:flex;align-items:center;justify-content:space-between;gap:32px}.brand{display:block;flex-shrink:0}.logo{width:112px;height:auto;filter:var(--logo-filter)}.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}.main-nav a{font-size:14px;color:var(--muted);transition:color .2s}.main-nav a:hover{color:var(--text)}.nav-actions{display:flex;align-items:center;gap:28px}.languages{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:500}.languages a{min-height:36px;display:flex;align-items:center;color:var(--muted)}.languages a[aria-current]{color:var(--text)}.languages span{color:var(--line)}.nav-cta{min-height:40px;padding:8px 16px;font-size:13px;gap:24px}.nav-cta .arrow{font-size:21px}.menu-toggle,.mobile-contact{display:none}
.hero{position:relative;isolation:isolate;min-height:590px;height:min(740px,calc(100svh - 80px));overflow:hidden;background:#111719;color:#f1f3f2}.hero-media{position:absolute;inset:0 0 0 30%;z-index:-2}.hero-media img{height:100%;width:100%;object-fit:cover;object-position:58% 43%}.hero-shade{position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#111719 5%,#111719 31%,rgb(17 23 25 / .78) 43%,rgb(17 23 25 / .08) 67%),linear-gradient(0deg,rgb(17 23 25 / .35),transparent 45%)}.hero-content{height:100%;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding-block:58px 66px}.hero-eyebrow{color:#b6cbd9;margin-bottom:27px;font-size:11px}.hero h1{font-size:clamp(46px,5.45vw,84px);letter-spacing:-.055em;line-height:1.1;max-width:800px}.hero h1 span{color:#b6cbd9}.hero-intro{max-width:380px;margin-top:28px;color:#c1cacf;font-size:18px;line-height:1.55}.hero-buttons{display:flex;align-items:center;gap:28px;margin-top:38px}.hero .button{background:#dce8ed;color:#17252e}.hero .button:hover{background:#b6cbd9}.film-trigger{display:inline-flex;gap:12px;align-items:center;font-size:14px;padding-block:12px}.play{display:flex;align-items:center;justify-content:center;border:1px solid #84969e;border-radius:50%;width:33px;height:33px;font-size:10px;padding-left:2px}.film-trigger:hover .play{background:rgb(255 255 255 / .1)}.pillars{display:grid;grid-template-columns:1fr 1fr 1fr;border-bottom:1px solid var(--line);padding-block:32px;gap:36px}.pillars>div{display:flex;flex-direction:column;gap:5px}.pillars strong{font-weight:500;font-size:17px}.pillars span{font-size:14px;color:var(--muted)}
.section-heading{max-width:820px;margin-bottom:54px}.section-heading h2{max-width:780px}.section-heading p{font-size:19px;margin-top:23px;max-width:650px;line-height:1.6}.technology-layout{display:grid;grid-template-columns:1.12fr 1fr;gap:70px;align-items:center}.technology-image{overflow:hidden;background:var(--surface)}.technology-image img{aspect-ratio:1.17;object-fit:cover;width:100%}.tech-step{border-bottom:1px solid var(--line)}.tech-step summary{display:flex;align-items:center;gap:20px;padding:25px 0}.step-index{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.tech-step h3{font-size:20px;letter-spacing:-.02em}.expand{font:25px/1 Arial,sans-serif;color:var(--muted);margin-left:auto;flex-shrink:0;transition:transform .2s}details[open] .expand{transform:rotate(45deg);color:var(--accent)}.step-body{padding:0 32px 27px 37px}.step-body p{font-size:16px;line-height:1.65}.tech-step[open] h3{color:var(--accent)}
.applications{background:var(--surface)}.case-tabs{display:flex;border-bottom:1px solid var(--line);gap:42px;margin-bottom:40px}.case-tabs button{background:none;padding:16px 0;font-size:16px;color:var(--muted);position:relative}.case-tabs button[aria-selected=true]{color:var(--text)}.case-tabs button[aria-selected=true]:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--accent)}.case-panel{display:grid;grid-template-columns:.83fr 1.17fr;gap:70px;align-items:center;min-height:450px}.case-copy{padding-block:25px}.case-copy h3{font-family:Nord,Arial,sans-serif;font-size:clamp(23px,2.15vw,32px);letter-spacing:-.035em;line-height:1.3;margin-bottom:24px}.case-copy p{font-size:17px;max-width:470px}.case-copy ul{display:flex;flex-wrap:wrap;gap:8px 20px;margin:27px 0;color:var(--muted);font-size:13px}.case-copy li{padding-bottom:6px;border-bottom:1px solid var(--line)}.case-panel>img{width:100%;height:460px;object-fit:cover}.portable{display:grid;grid-template-columns:.9fr 1.1fr;gap:100px;align-items:center}.portable-photo{max-height:690px;overflow:hidden}.portable-photo img{width:100%;height:640px;object-fit:cover;object-position:center 72%}.portable-copy .eyebrow{margin-bottom:26px}.portable-copy h2{font-size:clamp(35px,4vw,60px)}.portable-copy>.lead{font-size:18px;max-width:460px;margin-top:25px}.portable-features{display:grid;gap:25px;margin-top:36px}.portable-features>div{padding-left:18px;border-left:1px solid var(--line)}.portable-features h3{font-size:17px;margin-bottom:6px}.portable-features p{font-size:15px;max-width:410px}
.about{border-block:1px solid var(--line)}.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}.about-copy p{font-size:18px;max-width:510px;margin-top:28px}.about-copy .text-link{margin-top:24px}.brand-statement{font-family:Nord,Arial,sans-serif;font-size:clamp(38px,4.6vw,70px);line-height:1.35;letter-spacing:-.045em;color:var(--accent)}.faq{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}.faq h2{font-size:clamp(30px,3vw,43px)}.faq-item{border-bottom:1px solid var(--line)}.faq-item summary{display:flex;align-items:center;gap:28px;padding:23px 0;font-size:18px;font-weight:500}.faq-item:first-child summary{padding-top:5px}.faq-item p{padding-bottom:26px;max-width:670px;font-size:16px;line-height:1.7}.contact{background:var(--contact);padding-block:100px 108px}.contact h2{font-size:clamp(34px,4.2vw,64px);max-width:950px;margin-top:28px}.contact p:not(.eyebrow){font-size:19px;margin-top:24px}.contact-actions{display:flex;gap:38px;align-items:center;margin-top:36px}.contact-actions .text-link{font-size:16px}.footer{padding-top:56px}.footer-top{display:grid;grid-template-columns:.75fr 1.25fr 1fr;align-items:center;gap:40px;padding-bottom:48px}.footer .logo{width:144px}.footer-top p{font-size:16px}.footer-mail{justify-self:end;display:flex;gap:30px;align-items:center;font-size:20px}.footer-bottom{border-top:1px solid var(--line);padding-block:23px;display:flex;justify-content:space-between;align-items:center;gap:24px;font-size:12px;color:var(--muted)}.footer-bottom>div{display:flex;align-items:center;gap:26px}.footer-bottom a:hover{color:var(--text)}.theme-toggle{background:none;font-size:23px;line-height:1;width:32px;height:32px}
dialog{padding:0;background:var(--bg);color:var(--text);border:1px solid var(--line);max-height:calc(100dvh - 48px);overscroll-behavior:contain}dialog::backdrop{background:rgb(5 10 13 / .78);backdrop-filter:blur(8px)}.demo-dialog{width:min(660px,calc(100% - 32px));padding:45px 42px 34px}.dialog-close{background:none;position:absolute;right:18px;top:15px;font:32px/1 Arial,sans-serif;min-width:40px;min-height:40px;color:var(--muted)}.dialog-close:hover{color:var(--text)}.demo-dialog h2{font-size:32px;margin-top:22px;letter-spacing:-.035em}.dialog-intro{margin:20px 0 27px;font-size:16px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}label{display:block;font-size:14px;font-weight:500;margin-bottom:19px}label small{font-weight:400;color:var(--muted)}input,textarea{display:block;width:100%;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:2px;padding:11px 12px;margin-top:8px;font-size:16px;line-height:1.5}textarea{resize:vertical}.form-note{font-size:13px;margin:0 0 20px;line-height:1.6}.dialog-email{display:inline-block;margin-top:24px;font-size:14px;color:var(--muted)}#email-result{margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}#email-result p{font-size:14px}#email-result .button{margin-top:15px}.film-dialog{width:min(1100px,calc(100% - 32px))}.film-head{display:flex;justify-content:space-between;align-items:center;padding:23px 26px}.film-head h2{font-family:Saira,Arial,sans-serif;font-size:20px;letter-spacing:0}.film-head .dialog-close{position:static}.film-dialog video{width:100%;aspect-ratio:16/9;background:#090d0f}.film-dialog>p{padding:20px 26px;font-size:14px;max-width:760px}
.legal-main{padding-block:70px 110px;min-height:60vh}.legal-main h1{font-size:clamp(30px,4vw,54px);margin-top:35px;margin-bottom:50px}.legal-back{font-size:14px}.legal-body{max-width:820px}.legal-body h2{font-family:Saira,Arial,sans-serif;font-size:24px;letter-spacing:-.02em;line-height:1.35;margin-top:40px;margin-bottom:14px}.legal-body p,.legal-body address,.legal-body li,.legal-body dd{font-size:16px;line-height:1.8;color:var(--muted);font-style:normal}.legal-body p+p{margin-top:15px}.legal-body a{color:var(--text);text-decoration:underline;text-underline-offset:4px}.legal-body ul{list-style:disc;padding-left:22px}.legal-body dt{font-weight:500;margin-top:14px}.legal-body dd{margin-left:0}
@media(prefers-reduced-motion:no-preference){.hero-content{animation:hero-enter .85s ease-out both}.will-reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}.will-reveal.is-visible{opacity:1;transform:none}@keyframes hero-enter{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.will-reveal{opacity:1;transform:none}}
@media(min-width:1600px){.hero-media{left:35%}}
@media(max-width:1199px){.main-nav{gap:22px}.nav-shell{gap:24px}.nav-actions{gap:22px}.technology-layout{gap:38px}.case-panel{gap:40px}.portable{gap:60px}.about-layout{gap:60px}.faq{gap:40px}.hero h1{font-size:clamp(46px,5.6vw,70px)}.hero-media{left:27%}.hero-shade{background:linear-gradient(90deg,#111719 6%,rgb(17 23 25 / .96) 24%,rgb(17 23 25 / .64) 43%,rgb(17 23 25 / .06) 72%)}}
@media(max-width:1023px){.nav-cta{display:none}.main-nav{margin-left:auto}.nav-actions{gap:20px}.section{padding-block:88px}.hero{height:650px;min-height:560px}.hero h1{font-size:56px}.hero-intro{max-width:330px}.hero-media{inset:0 0 0 20%}.hero-media img{object-position:61% center}.hero-shade{background:linear-gradient(90deg,#111719 2%,rgb(17 23 25 / .92) 27%,rgb(17 23 25 / .45) 58%,rgb(17 23 25 / .1))}.hero-buttons{gap:22px}.hero-buttons .button{gap:20px}.technology-layout{gap:35px;grid-template-columns:1fr 1fr}.tech-step h3{font-size:17px}.tech-step summary{gap:15px;padding:20px 0}.step-body{padding-left:30px;padding-right:0}.step-body p{font-size:15px}.case-tabs{gap:30px}.case-tabs button{font-size:15px}.case-panel{grid-template-columns:1fr 1fr;gap:35px}.case-panel>img{height:430px}.case-copy h3{font-size:24px}.portable{gap:45px}.portable-photo img{height:610px}.portable-copy h2{font-size:39px}.portable-copy .eyebrow{font-size:10px}.portable-copy>.lead{font-size:17px}.portable-features{gap:22px}.brand-statement{font-size:44px}.about-copy h2{font-size:39px}.faq{grid-template-columns:1fr;gap:38px}.footer-mail{font-size:17px;gap:16px}}
@media(max-width:767px){.header{height:72px}.nav-shell{padding-inline:24px;gap:20px}.logo{width:102px}.nav-actions{gap:22px}.main-nav{display:none;position:absolute;top:71px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);padding:25px 24px 32px;box-shadow:0 20px 30px rgb(0 0 0 / .15)}.menu-open .main-nav{display:flex;flex-direction:column;align-items:flex-start;gap:24px}.main-nav a{font-size:20px}.main-nav .mobile-contact{display:block;color:var(--accent)}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:6px;padding:8px 0;width:28px;height:40px;background:none}.menu-toggle span{width:25px;height:1px;background:var(--text);transition:transform .2s}.menu-open .menu-toggle span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-open .menu-toggle span:last-child{transform:translateY(-3.5px) rotate(-45deg)}.languages{font-size:13px}.languages a{min-width:24px}.container{padding-inline:24px}.section{padding-block:72px}.hero{height:auto;min-height:720px;display:flex;align-items:flex-start}.hero-media{inset:160px 0 0 0}.hero-media img{object-position:30% 53%;width:100%;height:100%;object-fit:cover}.hero-shade{background:linear-gradient(180deg,#111719 0%,#111719 18%,rgb(17 23 25 / .65) 40%,rgb(17 23 25 / .08) 65%,#111719 100%),linear-gradient(90deg,rgb(17 23 25 / .15),transparent)}.hero-content{min-height:720px;justify-content:flex-start;width:100%;padding-top:42px;padding-bottom:35px}.hero-eyebrow{font-size:10px;margin-bottom:20px}.hero h1{font-size:clamp(38px,8.9vw,64px);line-height:1.14;letter-spacing:-.05em}.hero-intro{font-size:16px;max-width:340px;margin-top:21px;color:#cbd2d6}.hero-buttons{margin-top:auto;gap:22px;flex-wrap:wrap;padding-top:275px}.hero-buttons .button{font-size:14px;min-height:49px;padding-inline:19px;gap:23px}.film-trigger{font-size:13px;gap:10px}.play{width:29px;height:29px}.pillars{grid-template-columns:1fr;padding-block:10px;gap:0}.pillars>div{flex-direction:row;align-items:center;justify-content:space-between;padding-block:17px;gap:18px;border-bottom:1px solid var(--line)}.pillars>div:last-child{border-bottom:none}.pillars strong{font-size:14px;white-space:nowrap}.pillars span{font-size:12px;text-align:right;max-width:170px}.section-heading{margin-bottom:33px}.section-heading h2{font-size:30px;max-width:570px}.section-heading p{font-size:17px;margin-top:20px}.technology-layout{grid-template-columns:1fr;gap:25px}.technology-image img{aspect-ratio:1.27}.tech-step summary{padding:22px 0;gap:16px}.tech-step h3{font-size:18px}.step-body{padding-left:32px;padding-bottom:24px}.step-body p{font-size:16px}.case-tabs{gap:25px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap;margin-bottom:28px}.case-tabs button{font-size:14px;min-height:49px;flex-shrink:0}.case-panel{grid-template-columns:1fr;gap:28px;min-height:0}.case-panel>img{height:auto;aspect-ratio:1.22;object-fit:cover;grid-row:1}.case-copy{padding:0}.case-copy h3{font-size:27px;margin-bottom:18px}.case-copy p{font-size:16px}.case-copy ul{margin:22px 0;font-size:12px}.portable{grid-template-columns:1fr;gap:38px}.portable-photo{height:440px}.portable-photo img{height:100%;object-position:center 66%}.portable-copy .eyebrow{font-size:10px;margin-bottom:20px}.portable-copy h2{font-size:38px}.portable-copy>.lead{font-size:17px;max-width:540px}.portable-features{margin-top:30px;gap:22px}.portable-features p{max-width:100%}.about-layout{grid-template-columns:1fr;gap:45px}.about-copy h2{font-size:36px}.about-copy p{font-size:17px}.brand-statement{font-size:clamp(38px,9vw,60px);line-height:1.35}.faq{gap:27px}.faq h2{font-size:32px}.faq-item summary{font-size:17px;gap:20px;padding-block:21px}.faq-item p{font-size:15px}.contact{padding-block:70px}.contact h2{font-size:clamp(29px,7vw,44px);line-height:1.22;margin-top:24px;letter-spacing:-.05em}.contact .eyebrow{font-size:10px;line-height:1.8}.contact p:not(.eyebrow){font-size:17px}.contact-actions{flex-wrap:wrap;gap:18px;margin-top:29px}.contact-actions .text-link{font-size:15px}.footer{padding-top:40px}.footer-top{grid-template-columns:1fr 1fr;gap:30px;padding-bottom:34px}.footer .logo{width:122px}.footer-top p{font-size:14px;justify-self:end}.footer-mail{grid-column:1/-1;justify-self:start;font-size:20px}.footer-bottom{align-items:flex-start;flex-direction:column;gap:18px;padding-block:22px;font-size:11px}.footer-bottom>div{gap:25px}.demo-dialog{padding:35px 23px 26px;max-height:calc(100dvh - 24px)}.demo-dialog h2{font-size:27px;margin-top:18px}.dialog-intro{font-size:15px;margin-block:16px 24px}.form-row{grid-template-columns:1fr;gap:0}.film-dialog{width:calc(100% - 20px)}.film-head{padding:15px 18px}.film-head h2{font-size:18px}.film-dialog>p{padding:15px 18px;font-size:13px}.legal-main{padding-block:42px 72px}.legal-main h1{font-size:31px;overflow-wrap:anywhere;margin-bottom:35px}.legal-body h2{font-size:21px}.legal-body p,.legal-body li,.legal-body address,.legal-body dd{font-size:15px}}
@media(max-width:374px){.hero h1{font-size:36px}.hero-buttons{gap:15px}.hero-buttons .button{gap:15px;padding-inline:15px}.film-trigger{font-size:12px;gap:8px}.pillars span{max-width:145px}.container,.nav-shell{padding-inline:20px}}
.form-fields{padding:0;margin:0;border:0;min-width:0}
.form-trap{display:none}
.form-note a{text-decoration:underline;text-underline-offset:3px}
.form-fields:disabled{opacity:.7}
.button:disabled{cursor:wait;transform:none;box-shadow:none}
.form-feedback{margin-top:24px;padding:18px 20px;border-left:2px solid var(--accent);background:var(--surface);font-size:16px;line-height:1.65;color:var(--text)}
.form-feedback[data-state=error]{border-color:#c59e85}
.form-feedback:focus{outline:2px solid var(--accent);outline-offset:4px}