/* Aqriona — five-page public website. */
:root{color-scheme:dark;--ink:#111210;--surface:#191b17;--paper:#e9e8e0;--muted:#a3a49a;--dim:#929487;--accent:#bdc3a4;--rule:#3b3d34;--font:"Helvetica Neue",Helvetica,Arial,sans-serif;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;--gutter:clamp(24px,5vw,88px);--max:1520px;--space:clamp(76px,8vw,128px);--header-offset:116px;--ease:cubic-bezier(.22,1,.36,1)}
*{box-sizing:border-box}
html{scroll-padding-top:var(--header-offset);-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;background:var(--ink);color:var(--paper);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased}
main{flex:1}
main,section,article,.wrap>*,section div>*,li>*{min-width:0}
h1,h2,h3,p{margin:0;overflow-wrap:break-word}
h1,h2,h3{font-weight:400}
a{color:inherit;text-decoration:none;touch-action:manipulation}
a:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
:target{scroll-margin-top:var(--header-offset)}
::selection{background:var(--accent);color:var(--ink)}
svg{display:block;max-width:100%}
.wrap{width:min(100% - var(--gutter)*2,var(--max));margin-inline:auto}
.micro{font:400 11px/1.6 var(--mono);text-transform:uppercase;letter-spacing:.09em}
.skip{position:fixed;top:12px;left:16px;z-index:100;padding:12px 18px;background:var(--paper);color:var(--ink);transform:translateY(-180%)}
.skip:focus{transform:none}
/* Opaque sticky navigation stays in flow: no content hidden underneath. */
.site-header{position:sticky;top:0;z-index:50;background:var(--ink);border-bottom:1px solid var(--rule)}
.header{min-height:96px;display:flex;justify-content:space-between;align-items:center;gap:30px}
.wordmark{display:inline-flex;align-items:center;min-height:44px;font-size:25px;line-height:1;letter-spacing:.13em;font-weight:500;white-space:nowrap}
.brand-stop{color:var(--accent)}
.navigation{display:flex;align-items:center;gap:clamp(18px,2.4vw,40px)}
.navigation a{position:relative;display:inline-flex;align-items:center;min-height:48px;padding:10px 4px;font-size:14px;color:var(--paper);transition:color .18s}
.navigation a::after{content:"";position:absolute;left:4px;right:4px;bottom:5px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.navigation a[aria-current="page"]{color:var(--accent)}
.navigation a[aria-current="page"]::after,.navigation a:focus-visible::after{transform:scaleX(1)}
.navigation a:active{color:#fff;background:#24271f}
.header-status{color:var(--muted);white-space:nowrap}
.status-mark{display:inline-block;width:5px;height:5px;background:var(--accent);vertical-align:middle;margin-right:9px}
/* Native links: keyboard, browser Back, bookmarks and new tabs work normally. */
.button{display:inline-flex;align-items:center;justify-content:space-between;gap:32px;min-height:52px;padding:14px 20px;border:1px solid var(--accent);font-size:14px;line-height:1.4;transition:background .2s,color .2s,border-color .2s}
.button-primary{background:var(--accent);color:var(--ink)}
.button-secondary{background:transparent;color:var(--paper);border-color:#626750}
.button>span{font:normal 22px/1 var(--font);flex:none;white-space:nowrap}
.button:active{background:var(--paper);border-color:var(--paper)}
.button-secondary:active{color:var(--ink)}
.text-link{display:inline-flex;align-items:center;gap:16px;min-height:48px;padding-block:10px;border-bottom:1px solid var(--rule);font-size:14px}
.text-link:active{color:var(--accent)}
.hero-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:30px;max-width:530px}
.hero-actions .button{min-width:0;width:100%}
.mobile-only{display:none}
/* Text and illustration occupy separate grid cells. */
.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);column-gap:clamp(36px,5vw,80px);row-gap:clamp(38px,4vw,64px);align-items:center;padding-top:28px}
.hero-top,.hero-footer{grid-column:1/-1;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 28px;color:var(--muted)}
.hero-copy{padding-block:16px}
.hero h1{font-size:clamp(48px,6.3vw,104px);line-height:1.04;letter-spacing:-.055em}
.hero-line{display:block}
.hero-future{font-size:.59em;line-height:1.2;margin-top:20px;color:var(--accent)}
.hero-intro{margin-top:30px;max-width:470px;font-size:clamp(15px,1.15vw,18px);line-height:1.65;color:#b8b9ae}
.architecture{width:100%;max-width:480px;justify-self:center;pointer-events:none}
.architecture-svg{width:100%;height:auto;overflow:hidden}
.hero-footer{border-top:1px solid var(--rule);padding-block:22px}
.metadata-divider{padding-inline:12px}
.section{padding-block:var(--space)}
.page-opening{padding-top:clamp(52px,6vw,96px)}
.section-label{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px 24px;color:var(--muted);margin-bottom:clamp(40px,5vw,72px)}
.section-label>span{min-width:0}
.section-label h2{font:inherit}
.display{font-size:clamp(44px,5.7vw,88px);line-height:1.08;letter-spacing:-.05em}
.page-title{max-width:1040px;margin-bottom:clamp(52px,6vw,88px)}
.lead{font-size:clamp(22px,2.2vw,32px);line-height:1.42;letter-spacing:-.025em}
.company-layout,.universal-layout,.development-layout,.approach-layout,.longevity-bottom{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(36px,7vw,112px)}
.company{border-bottom:1px solid var(--rule)}
.context-lines{margin-block:34px;color:var(--muted);font-size:16px}
.context-lines p{padding-block:15px;border-bottom:1px solid var(--rule)}
.company-close{color:var(--accent)}
.statement{font-size:clamp(44px,7vw,106px);line-height:1.1;letter-spacing:-.055em}
.statement>span{color:var(--dim)}
.longevity-bottom{margin-top:60px}
.change-list{color:var(--muted)}
.change-list p{margin-block:12px}
.longevity-bottom .lead{font-size:clamp(21px,2vw,28px)}
.universality{background:var(--surface)}
.universal-lines{margin-top:28px;color:var(--muted);font-size:16px}
.universal-lines p{padding-block:12px}
.development-copy{color:var(--muted);font-size:17px}
.development-copy p+p{margin-top:22px}
.development-copy p:first-child{color:var(--paper)}
.capability{display:grid;grid-template-columns:44px minmax(0,1.4fr) minmax(0,1fr);align-items:center;gap:30px;padding-block:44px;border-top:1px solid var(--rule)}
.capability:last-child{border-bottom:1px solid var(--rule)}
.cap-number{color:var(--accent);align-self:start;padding-top:8px}
.capability h2{font-size:clamp(32px,3.8vw,58px);letter-spacing:-.04em;line-height:1.12}
.capability h2 span{color:var(--muted)}
.capability p{color:var(--muted);max-width:360px;font-size:16px}
.approach{background:#24271f}
.approach-art{align-self:start;position:sticky;top:calc(var(--header-offset) + 30px);display:grid;justify-items:start;padding:40px 25px 0}
.approach-art>span{color:var(--muted);margin-top:40px}
.line-field{width:min(80%,340px);aspect-ratio:1;position:relative;transform:rotate(-8deg)}
.line-field i{position:absolute;inset:0;border:1px solid var(--accent);transform:translate(calc(var(--n)*5px),calc(var(--n)*-4px)) scale(calc(1 - var(--n)*.05));opacity:calc(.2 + var(--n)*.06)}
.line-field i:nth-child(1){--n:0}.line-field i:nth-child(2){--n:1}.line-field i:nth-child(3){--n:2}.line-field i:nth-child(4){--n:3}.line-field i:nth-child(5){--n:4}.line-field i:nth-child(6){--n:5}.line-field i:nth-child(7){--n:6}.line-field i:nth-child(8){--n:7}.line-field i:nth-child(9){--n:8}.line-field i:nth-child(10){--n:9}.line-field i:nth-child(11){--n:10}.line-field i:nth-child(12){--n:11}
.approach-list{list-style:none;padding:0;margin:0}
.approach-list li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:24px;padding-block:30px 36px;border-top:1px solid #505644}
.approach-list li:last-child{border-bottom:1px solid #505644}
.approach-list li>span{color:var(--accent);padding-top:10px}
.approach-list h2{font-size:clamp(34px,3.8vw,58px);line-height:1.15;letter-spacing:-.045em}
.approach-list p{margin-top:14px;color:#b5baaa;font-size:16px}
.principle{display:grid;grid-template-columns:32px minmax(0,1fr);gap:24px;border-top:1px solid var(--rule);padding-block:30px}
.principle:last-child{border-bottom:1px solid var(--rule)}
.principle>span{color:var(--accent);padding-top:8px}
.principle p{font-size:clamp(25px,3.3vw,48px);line-height:1.3;letter-spacing:-.03em}
.principle p span{color:var(--muted)}
.contact{background:#20231c}
.contact .display{max-width:1000px}
.contact-description{color:var(--muted);font-size:17px;margin-top:36px}
.contact-email{display:flex;justify-content:space-between;align-items:center;gap:24px;border-top:1px solid #626750;border-bottom:1px solid #626750;padding-block:30px;margin-top:clamp(36px,4vw,64px);font-size:clamp(28px,5vw,68px);letter-spacing:-.04em;line-height:1.3;color:var(--accent);transition:color .2s}
.contact-email>span:first-child{min-width:0;overflow-wrap:anywhere}
.contact-arrow{flex-shrink:0;font:normal clamp(28px,3.5vw,46px)/1 var(--font);letter-spacing:0;transition:transform .2s var(--ease)}
.contact-email:active{color:#fff}
.page-next{padding-block:44px 64px;border-top:1px solid var(--rule)}
.page-next p{color:var(--muted);margin-bottom:8px}
.next-link{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:56px;padding-block:12px;font-size:clamp(25px,3vw,44px);letter-spacing:-.025em;line-height:1.3;transition:color .2s}
.next-link>span{flex-shrink:0;transition:transform .2s var(--ease)}
.site-footer{border-top:1px solid var(--rule)}
.footer{min-height:122px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px 30px;padding-block:28px}
.footer .wordmark{font-size:21px}
.footer p{font-size:13px;color:var(--muted)}
.footer>span{color:var(--muted)}
@media(hover:hover){
  .navigation a:hover{color:var(--accent)}
  .navigation a:hover::after{transform:scaleX(1)}
  .button:hover{background:var(--paper);border-color:var(--paper);color:var(--ink)}
  .text-link:hover{color:var(--accent);border-color:var(--accent)}
  .contact-email:hover{color:var(--paper)}
  .next-link:hover{color:var(--accent)}
  .contact-email:hover .contact-arrow{transform:translateX(4px)}
  .next-link:hover>span{transform:translateX(4px)}
}
.motion-enabled .reveal.is-entering{animation:section-enter .6s var(--ease)}
@keyframes section-enter{from{transform:translateY(12px)}to{transform:none}}
@media(max-width:1150px){.header-status{display:none}}
@media(max-width:900px){
  .hero{grid-template-columns:minmax(0,1fr);row-gap:34px}
  .hero h1{font-size:clamp(43px,9.2vw,78px)}
  .architecture{width:70%;max-width:290px}
  .company-layout,.universal-layout,.development-layout,.approach-layout,.longevity-bottom{grid-template-columns:minmax(0,1fr);gap:36px}
  .approach-art{position:static;padding:12px 20px 24px}
  .line-field{width:150px}
  .approach-art>span{margin-top:24px}
}
@media(max-width:640px){
  :root{--gutter:22px;--space:68px;--header-offset:138px}
  .header{display:grid;grid-template-columns:minmax(0,1fr);gap:2px;padding-top:12px;padding-bottom:8px}
  .wordmark{font-size:22px}
  .navigation{width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
  .navigation a{justify-content:center;padding-inline:0;font-size:12px}
  .navigation a::after{left:0;right:0}
  .hero-top{gap:8px 20px}
  .hero-top>span:last-child{margin-left:auto}
  .hero-copy{padding-top:4px}
  .hero-future{font-size:.62em}
  .hero-intro{margin-top:24px}
  .hero-actions{grid-template-columns:minmax(0,1fr);gap:12px;max-width:370px}
  .hero-footer{display:grid}
  .metadata-divider{padding-inline:8px}
  .display{font-size:clamp(39px,8.5vw,54px)}
  .section-label{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;column-gap:14px;margin-bottom:42px;font-size:11px}
  .section-label>:last-child{text-align:right}
  .section-label>span:last-child{max-width:23ch}
  .mobile-only{display:block}
  .page-title{margin-bottom:42px}
  .capability{grid-template-columns:25px minmax(0,1fr);gap:14px;padding-block:30px}
  .capability h2{font-size:clamp(29px,6.5vw,40px)}
  .capability p{grid-column:2}
  .principle{grid-template-columns:22px minmax(0,1fr);gap:16px}
  .approach-list li{gap:16px}
  .approach-list h2{font-size:clamp(33px,7.5vw,44px)}
  .contact-email{gap:10px;font-size:clamp(21px,5.4vw,34px);padding-block:22px}
  .contact-arrow{font-size:28px}
  .footer{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
  .page-next{padding-block:32px 40px}
}
@media(max-width:360px){:root{--gutter:18px}.micro{font-size:10px}.hero h1{font-size:clamp(34px,11vw,40px)}}
@media(max-width:280px){:root{--header-offset:190px}.navigation{grid-template-columns:repeat(2,minmax(0,1fr))}.hero h1{font-size:28px}.hero-top{display:grid;gap:6px}.hero-top>span:last-child{margin:0}.section-label{grid-template-columns:minmax(0,1fr)}.section-label>:last-child{text-align:left}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
@media(max-height:450px){.site-header{position:relative}}
@media print{
  :root{--paper:#111;--accent:#222;--muted:#333;--dim:#444;--rule:#aaa;--space:32px}
  body,.approach,.universality,.contact,.site-header{background:#fff;color:#111}
  body *{color:#111!important;animation:none!important;transform:none!important}
  .site-header{position:static}
  .navigation,.architecture,.approach-art,.hero-actions,.page-next,.skip{display:none}
  .hero{display:block}.hero-copy{padding-block:24px}.hero h1{font-size:48px}.display{font-size:40px}
  .section-label{margin-bottom:24px}
  .capability,.principle,.approach-list li{break-inside:avoid}
}