/* ============================================================
   KAIROSPACE · DEEP LAB — shared design system
   Dark, premium, scientific. Re-skins the existing class
   vocabulary so page markup stays the same.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@200;300;400;500;600;700&family=Inter:wght@300;400;500;600&family=Space+Mono:wght@400;700&display=swap');

:root{
  --navy:#04141d; --navy-2:#06212e; --navy-3:#0a2a39;
  --teal:#269f92; --teal-deep:#14727A; --teal-blue:#02445d; --teal-bright:#3fd6c0;
  --ink:#dce8ec; --ink-bright:#f4fbfc; --muted:#7e9aa3; --muted-2:#5d7780;
  --line:rgba(120,180,190,.14); --line-2:rgba(120,180,190,.22);
  --panel:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01));
  --grad:linear-gradient(120deg,#3fd6c0 0%,#269f92 45%,#1f8fb0 100%);
  --brand-gradient:linear-gradient(120deg,#3fd6c0 0%,#269f92 45%,#1f8fb0 100%);
  --color-highlight:#3fd6c0; --color-primary:#3fd6c0;
  --text-primary:var(--ink); --text-secondary:var(--muted);
  --bg-core:var(--navy); --bg-surface:var(--navy-2);
  --font-heading:'Outfit',sans-serif; --font-body:'Inter',sans-serif; --font-mono:'Space Mono',monospace;
  --radius-card:20px; --radius-btn:999px;
  /* legacy alias, still used by author.html */
  --glass-border:var(--line-2);
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
.material-symbols-outlined{font-family:'Material Symbols Outlined';font-weight:normal;font-style:normal;font-size:24px;line-height:1;letter-spacing:normal;text-transform:none;display:inline-block;white-space:nowrap;word-wrap:normal;direction:ltr;font-feature-settings:'liga';-webkit-font-feature-settings:'liga';-webkit-font-smoothing:antialiased}
/* overflow-x:clip (not hidden) kills sideways panning without creating a scroll
   container — body's own overflow-x:hidden doesn't stop the ROOT element from
   scrolling when in-flow content (or the parked off-canvas nav) runs wide. */
html{background:var(--navy);scroll-behavior:smooth;overflow-x:clip}
body{
  font-family:var(--font-body);color:var(--ink);font-weight:300;line-height:1.6;
  font-size:1.06rem;-webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100vh;
  background:
    radial-gradient(1200px 700px at 80% -5%, rgba(38,159,146,.14), transparent 60%),
    radial-gradient(900px 600px at -10% 20%, rgba(2,68,93,.30), transparent 55%),
    var(--navy);
  background-attachment:fixed;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container,.wrap{width:90%;max-width:1240px;margin:0 auto}

/* Typography */
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:300;line-height:1.1;letter-spacing:-.02em;color:var(--ink-bright)}
.text-gradient,.brand-text,.grad{
  font-family:var(--font-heading);background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:200% auto;animation:gradFlow 8s linear infinite alternate;
}
.text-gradient-static{font-family:var(--font-heading);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}
@keyframes gradFlow{0%{background-position:0% 50%}100%{background-position:100% 50%}}
.mono-tag,.hero-label,.section-pretitle{
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--teal-bright);display:block
}
.tech-term{font-family:var(--font-mono);color:var(--teal-bright);font-size:.9em;font-weight:400}

.section-title{font-size:clamp(2.4rem,4vw,3.2rem);font-weight:200;line-height:1.12;margin-bottom:1.2rem;text-align:center}
.section-subtitle{max-width:42rem;margin:1rem auto 0;color:var(--muted);font-size:1.15rem;line-height:1.65;text-align:center}
.section-header-center{text-align:center;margin-bottom:3.5rem;max-width:50rem;margin-left:auto;margin-right:auto}
.section-footer{text-align:center;margin-top:3rem}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-family:var(--font-heading);font-weight:500;font-size:1rem;letter-spacing:.01em;
  padding:.85rem 1.7rem;border-radius:var(--radius-btn);cursor:pointer;border:1px solid transparent;
  transition:transform .25s ease,box-shadow .25s ease,background .25s,color .25s;text-align:center
}
.btn-primary{background:var(--grad);color:#04141d;box-shadow:0 10px 26px -8px rgba(38,159,146,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -8px rgba(38,159,146,.6)}
.btn-secondary,.btn-ghost{border-color:var(--line-2);color:var(--ink);background:rgba(255,255,255,.02)}
.btn-secondary:hover,.btn-ghost:hover{border-color:var(--teal);color:#fff}
.btn-white{background:#fff;color:var(--teal-deep)}

/* ===================== NAV ===================== */
#header-container{position:sticky;top:0;z-index:1000}
.glass-nav{background:rgba(4,20,29,.62);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-content{display:flex;align-items:center;padding:1rem 0}
.logo-link{display:flex;align-items:center}
.nav-logo{height:30px;width:auto}
.main-nav{display:flex;align-items:center;margin-left:2.5rem}
.nav-links{display:flex;list-style:none;gap:1.9rem;margin:0;padding:0}
.nav-item{position:relative}
.nav-link{font-family:var(--font-body);font-weight:400;font-size:.95rem;color:var(--muted);display:flex;align-items:center;gap:.4rem;padding:.5rem 0;transition:color .2s}
.nav-link:hover{color:#fff}
.dropdown-arrow{width:7px;height:7px;border:solid var(--muted);border-width:0 1.5px 1.5px 0;transform:rotate(45deg);transition:.2s;margin-bottom:2px}
.nav-item:hover .dropdown-arrow{transform:rotate(-135deg);border-color:var(--teal-bright)}

/* mega menu (dark) */
.mega-dropdown{position:static}
.mega-menu{position:absolute;top:100%;left:0;right:0;width:100%;background:rgba(6,33,46,.97);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:0 30px 60px rgba(0,0,0,.5);
  opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .25s ease;z-index:1001}
.mega-dropdown:hover .mega-menu{opacity:1;visibility:visible;transform:translateY(0)}
.mega-menu-content{display:grid;grid-template-columns:1fr 1.5fr;gap:4rem;padding:2.8rem 0}
.mega-menu-intro{padding-right:2rem;border-right:1px solid var(--line)}
.mega-menu-intro h3{color:var(--ink-bright)!important}
.mega-menu-intro p{color:var(--muted)!important}
.mega-menu-label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;color:var(--teal-bright);text-transform:uppercase;display:block;margin-bottom:1rem}
.mega-menu-btn{display:inline-block;padding:.55rem 1.2rem;font-size:.85rem;border-radius:999px;border:1px solid var(--line-2);background:transparent;color:var(--ink);transition:.25s}
.mega-menu-btn:hover{background:var(--teal);border-color:var(--teal);color:#04141d}
.mega-menu-links{display:grid;grid-template-columns:repeat(2,1fr);gap:.25rem;align-content:start}
.mega-menu-links a{display:flex;justify-content:space-between;align-items:center;padding:.6rem 1rem;font-size:.94rem;color:var(--ink);border-radius:10px;transition:.2s}
.mega-menu-links a span{opacity:0;transform:translateX(-8px);transition:.2s;color:var(--teal-bright)}
.mega-menu-links a:hover{background:rgba(38,159,146,.1);color:var(--teal-bright);padding-left:1.4rem}
.mega-menu-links a:hover span{opacity:1;transform:translateX(0)}

.nav-actions{margin-left:auto;display:flex;align-items:center;gap:1.4rem}
.lang-switcher-desktop{font-size:14px}
.lang-switcher-desktop .active-lang,.lang-switcher-mobile .active-lang{color:var(--teal-bright);font-weight:700}
.lang-switcher-desktop .separator,.lang-switcher-mobile .separator{margin:0 .5rem;color:var(--muted-2)}
.lang-switcher-desktop .inactive-lang,.lang-switcher-mobile .inactive-lang{color:var(--muted);transition:color .2s}
.lang-switcher-desktop .inactive-lang:hover,.lang-switcher-mobile .inactive-lang:hover{color:#fff}
.lang-switcher-mobile{font-size:15px;text-align:center;margin-top:1rem}
.lang-switcher-mobile a{padding:.4rem .6rem;display:inline-block}

/* mobile nav */
.mobile-menu-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:10px;background:transparent;border:none;cursor:pointer}
.hamburger-line{width:24px;height:2px;background:var(--ink);transition:.3s}
.mobile-menu-toggle.is-active .hamburger-line:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.mobile-menu-toggle.is-active .hamburger-line:nth-child(2){opacity:0}
.mobile-menu-toggle.is-active .hamburger-line:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-nav-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;transition:.3s;z-index:998}
.mobile-nav-overlay.is-visible{opacity:1;visibility:visible}
.mobile-nav{position:fixed;top:0;right:-100%;width:85%;max-width:340px;height:100%;background:var(--navy-2);z-index:999;display:flex;flex-direction:column;transition:right .3s ease;box-shadow:-5px 0 30px rgba(0,0,0,.4);overflow-y:auto}
.mobile-nav.is-open{right:0}
.mobile-nav-header{display:flex;justify-content:space-between;align-items:center;padding:1.2rem 1.4rem;border-bottom:1px solid var(--line)}
.mobile-nav-header .nav-logo{height:28px}
.mobile-nav-close{width:40px;height:40px;background:transparent;border:none;cursor:pointer;position:relative;display:grid;place-items:center;border-radius:8px}
.mobile-nav-close span{position:absolute;width:22px;height:2px;background:var(--ink)}
.mobile-nav-close span:first-child{transform:rotate(45deg)}
.mobile-nav-close span:last-child{transform:rotate(-45deg)}
.mobile-nav-links{list-style:none;padding:1rem 0;margin:0;flex-grow:1}
.mobile-nav-item{border-bottom:1px solid var(--line)}
.mobile-nav-link{display:flex;justify-content:space-between;align-items:center;width:100%;padding:1rem 1.4rem;font-family:var(--font-body);font-size:1rem;color:var(--ink);background:transparent;border:none;cursor:pointer;text-align:left}
.mobile-dropdown-arrow{width:9px;height:9px;border:solid var(--muted);border-width:0 2px 2px 0;transform:rotate(45deg);transition:.3s}
.mobile-nav-item.is-open .mobile-dropdown-arrow{transform:rotate(-135deg)}
.mobile-dropdown{list-style:none;padding:0;margin:0;max-height:0;overflow:hidden;transition:max-height .3s ease;background:rgba(255,255,255,.02)}
.mobile-nav-item.is-open .mobile-dropdown{max-height:600px}
.mobile-dropdown li a{display:block;padding:.7rem 1.4rem .7rem 2.4rem;font-size:.92rem;color:var(--muted);transition:.2s}
.mobile-dropdown li a:hover{color:var(--teal-bright);background:rgba(38,159,146,.06)}
.mobile-nav-footer{padding:1.4rem;border-top:1px solid var(--line)}
.mobile-cta{width:100%}

@media(max-width:900px){
  .desktop-nav,.desktop-cta,.lang-switcher-desktop{display:none!important}
  .mobile-menu-toggle{display:flex}
  .nav-content{justify-content:space-between}
  .mega-menu{display:none!important}
}

/* ===================== HERO ===================== */
#hero{min-height:auto;display:flex;align-items:center;justify-content:center;text-align:center;padding:7rem 0 5rem;position:relative}
.hero-content{display:flex;flex-direction:column;align-items:center}
.hero-title{font-size:clamp(3rem,6vw,5rem);font-weight:200;letter-spacing:-.03em;line-height:1.08;margin-bottom:1.5rem}
.hero-subtitle{font-size:clamp(1.15rem,2vw,1.4rem);color:var(--muted);font-weight:300;max-width:48rem;margin:0 auto 2rem}
.hero-cta{margin-top:1rem;display:flex;gap:1rem;flex-wrap:wrap;justify-content:center}

/* page hero (interior) */
.page-hero{padding:6rem 0 3rem;text-align:center}
.page-hero .mono-tag{margin-bottom:1.1rem}
.page-hero h1{font-size:clamp(2.6rem,5vw,4rem);font-weight:200;margin-bottom:1.2rem}
.page-hero .hero-subtitle{margin-left:auto;margin-right:auto}
/* hero with background image */
.page-hero.has-bg{position:relative;overflow:hidden;padding:8rem 0 5.5rem}
.page-hero.has-bg .hero-bg{position:absolute;inset:0;z-index:0;background-size:cover;background-position:center;filter:saturate(.85) brightness(.55);transform:scale(1.03)}
.page-hero.has-bg::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(4,20,29,.5) 0%,rgba(4,20,29,.78) 55%,var(--navy) 100%)}
.page-hero.has-bg .container{position:relative;z-index:2}

/* ===================== SECTIONS ===================== */
section{position:relative}
.blk{padding:6rem 0}
#impact{padding:3.5rem 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(6,33,46,.4)}
.impact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;text-align:center}
.impact-grid.three{grid-template-columns:repeat(3,1fr)}
.impact-item{padding:1rem 1.4rem;border-right:1px solid var(--line)}
.impact-item:last-child{border-right:none}
.impact-number{font-family:var(--font-heading);font-size:clamp(2.2rem,3.5vw,3rem);font-weight:300;line-height:1;margin-bottom:.5rem;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.impact-label{font-size:.92rem;color:var(--muted);line-height:1.4}

/* generic surface section */
.surface{background:rgba(6,33,46,.55);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ===================== CARDS ===================== */
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.glass-card,.tech-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);padding:2.3rem;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s
}
.glass-card:hover,.tech-card:hover{transform:translateY(-6px);border-color:rgba(63,214,192,.4);box-shadow:0 30px 60px -30px rgba(0,0,0,.7)}
.card-icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(38,159,146,.12);border:1px solid var(--line);margin-bottom:1.3rem}
.card-icon .material-symbols-outlined{color:var(--teal-bright)!important}
.card-title{font-size:1.5rem;font-weight:400;margin-bottom:.4rem}
.card-subtitle{font-family:var(--font-heading);color:var(--teal-bright);font-size:.92rem;font-weight:500;margin-bottom:1rem;opacity:.95}
.card-text{color:var(--muted);margin-bottom:1.4rem;font-size:.98rem}
.card-hook{font-style:italic;font-size:.95rem;color:var(--muted);margin-bottom:1.4rem;border-left:2px solid var(--teal);padding-left:1rem}
.card-tags{font-family:var(--font-mono);font-size:.74rem;color:var(--muted);letter-spacing:-.01em;border-top:1px solid var(--line);padding-top:1rem}

/* process steps (about) */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.process-step{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:2rem;transition:.3s}
.process-step:hover{border-color:rgba(63,214,192,.35);transform:translateY(-4px)}
.process-step .step-number{font-family:var(--font-mono);font-size:.85rem;color:var(--teal-bright);display:block;margin-bottom:1rem}
.process-step h4{font-size:1.3rem;font-weight:400;margin-bottom:.5rem}
.process-step p{color:var(--muted);font-size:.94rem}

/* team */
.team-photo{border-radius:14px;overflow:hidden;aspect-ratio:1/1;margin-bottom:1.3rem;border:1px solid var(--line)}
.team-photo img{width:100%;height:100%;object-fit:cover}
.team-links{margin-top:1rem}
.icon-link{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--font-mono);font-size:.8rem;color:var(--teal-bright);transition:.2s}
.icon-link:hover{color:#fff}
.icon-link.disabled-link{color:var(--muted-2);cursor:default}
.icon-link .material-symbols-outlined{font-size:18px}

/* locations */
.locations-list{display:flex;flex-direction:column;gap:1rem;max-width:30rem;margin:0 auto;text-align:left}
.location-item{display:flex;align-items:center;gap:.7rem;padding:1rem 1.4rem;background:var(--panel);border:1px solid var(--line);border-radius:14px;color:var(--ink)}
.location-item .material-symbols-outlined{color:var(--teal-bright)}
.location-item strong{font-weight:500;color:var(--ink-bright)}

/* ===================== INDUSTRIES GRID (home) ===================== */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem}
.ind-card{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:4/5;display:block;border:1px solid var(--line)}
.ind-card.tall{aspect-ratio:auto;grid-row:span 2}
.ind-card img{width:100%;height:100%;object-fit:cover;filter:saturate(.7) brightness(.7);transition:.5s}
.ind-card:hover img{transform:scale(1.06);filter:saturate(.95) brightness(.85)}
.ind-card .ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,20,29,.1) 30%,rgba(4,20,29,.92));display:flex;flex-direction:column;justify-content:flex-end;padding:1.4rem}
.ind-card .num{font-family:var(--font-mono);font-size:.74rem;color:var(--teal-bright)}
.ind-card h4{font-size:1.35rem;font-weight:400;margin:.3rem 0;color:#fff}
.ind-card .ov p{font-size:.86rem;color:var(--muted)}

/* ===================== TESTIMONIALS ===================== */
.quotes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.bento-card{border:1px solid var(--line);border-radius:18px;padding:2rem;background:var(--panel)}
.bento-card.featured{border-color:rgba(63,214,192,.4)}
.testimonial-result{font-family:var(--font-heading);font-size:1.3rem;font-weight:500;color:#fff;margin-bottom:1rem;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.bento-text{color:var(--muted);font-size:.95rem;margin-bottom:1.4rem}
.bento-footer{display:flex;flex-direction:column;gap:.1rem;font-family:var(--font-mono);font-size:.74rem}
.bento-footer .author-name{color:var(--ink-bright)}
.bento-footer .author-role,.bento-footer .author-company{color:var(--muted)}

/* ===================== CTA band ===================== */
.cta-band{text-align:center;padding:7rem 0}
.cta-band h2{font-size:clamp(2.4rem,4vw,3.2rem);font-weight:200;margin-bottom:1.2rem}
.cta-band p{color:var(--muted);font-size:1.12rem;max-width:34rem;margin:0 auto 2.2rem}

/* forms */
.contact-form,.newsletter-form{max-width:600px;margin:0 auto}
.form-group{margin-bottom:1.4rem}
.form-group label{display:block;margin-bottom:.5rem;font-weight:400;color:var(--ink);font-size:.95rem}
input,textarea,select,.form-select{width:100%;padding:.85rem 1rem;border-radius:12px;border:1px solid var(--line-2);background:rgba(255,255,255,.03);color:var(--ink);font-family:var(--font-body);font-size:1rem}
input::placeholder,textarea::placeholder{color:var(--muted-2)}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--teal)}
select option{background:var(--navy-2);color:var(--ink)}

/* ===================== FOOTER ===================== */
.main-footer{border-top:1px solid var(--line);padding:4rem 0 2rem;margin-top:2rem;background:rgba(4,20,29,.5)}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:2.5rem}
.footer-logo img{height:28px;margin-bottom:1.2rem}
.footer-tagline{color:var(--muted);font-size:.92rem;max-width:18rem;margin-bottom:1.4rem}
.social-links{display:flex;gap:.8rem}
.social-links a{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;border:1px solid var(--line);color:var(--muted);transition:.25s}
.social-links a:hover{border-color:var(--teal);color:var(--teal-bright);transform:translateY(-2px)}
.footer-heading{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--teal-bright);margin-bottom:1.1rem}
.footer-menu{list-style:none;padding:0;margin:0}
.footer-menu li{margin-bottom:.55rem}
.footer-menu a{color:var(--muted);font-size:.92rem;transition:.2s}
.footer-menu a:hover{color:#fff}
.footer-address p{color:var(--muted);font-size:.9rem;margin-bottom:.8rem;line-height:1.4}
.footer-address span{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;color:var(--teal-bright)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--line)}
.copyright{font-family:var(--font-mono);font-size:.74rem;color:var(--muted)}
.legal-links{display:flex;gap:1.5rem}
.legal-links a{font-family:var(--font-mono);font-size:.74rem;color:var(--muted);transition:.2s}
.legal-links a:hover{color:var(--teal-bright)}

/* ===================== PRODUCTS ===================== */
.content-section{padding:6rem 0}
.mono-tag.dark-text{color:var(--teal-bright)}
.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;text-align:left}
.benefit-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:1.5rem;display:flex;flex-direction:column;gap:.5rem}
.benefit-card .material-symbols-outlined{font-size:2rem;color:var(--teal-bright)}
.benefit-card strong{color:var(--ink-bright);font-weight:500}
.benefit-card p{font-size:.85rem;color:var(--muted);line-height:1.5}
.engines-layout{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}
.engines-info-col{display:flex;flex-direction:column;gap:1.4rem}
.info-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);padding:2rem;transition:.3s}
.info-card:hover{border-color:rgba(63,214,192,.35)}
.info-card h3{font-size:1.6rem;font-weight:400;margin:.4rem 0}
.card-badge-inline{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--teal-bright)}
.tech-desc{color:var(--ink);margin:.6rem 0}
.info-card p{color:var(--muted);font-size:.96rem}
.tech-specs{list-style:none;margin:1.2rem 0 0;padding:0;border-top:1px solid var(--line)}
.tech-specs li{padding:.6rem 0;border-bottom:1px solid var(--line);font-size:.9rem;color:var(--muted)}
.tech-specs li strong{color:var(--ink);font-weight:500}
.view-specs-link{display:inline-block;margin-top:1rem;font-family:var(--font-mono);font-size:.82rem;color:var(--teal-bright);transition:.2s}
.view-specs-link:hover{color:#fff}
.product-frame{border-radius:var(--radius-card);overflow:hidden;background:#eef1f0;border:1px solid var(--line);display:grid;place-items:center;padding:1.5rem}
.product-frame img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.split-layout{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.application-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1.5rem}
.app-item{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1.2rem;display:flex;flex-direction:column;gap:.3rem}
.app-item .material-symbols-outlined{color:var(--teal-bright)}
.app-item strong{color:var(--ink-bright);font-weight:500}
.small-text{font-size:.82rem;color:var(--muted)}
.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.product-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:.3s}
.product-card:hover{border-color:rgba(63,214,192,.35);transform:translateY(-4px)}
.product-card .product-frame{border:none;border-radius:0;border-bottom:1px solid var(--line)}
.product-card .tech-card-body{padding:1.8rem}
.cta-section{text-align:center;padding:6rem 0;background:rgba(6,33,46,.55);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-section h2{color:#fff}
.cta-section p{color:var(--muted)}
@media(max-width:900px){
  .benefit-grid{grid-template-columns:1fr 1fr}
  .engines-layout,.split-layout,.product-grid{grid-template-columns:1fr}
}
@media(max-width:600px){.benefit-grid,.application-grid{grid-template-columns:1fr}}

/* ===================== INDUSTRY PAGES ===================== */
.industry-split-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.industry-split-grid h2{font-size:2rem;font-weight:300;margin:1rem 0 1.5rem}
.industry-split-grid p{font-size:1.08rem;line-height:1.8;color:var(--muted)}
.industry-benefits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.industry-benefits-grid .glass-card{text-align:center;padding:2.5rem}
.industry-benefits-grid .glass-card .material-symbols-outlined{font-size:3rem;color:var(--teal-bright);margin-bottom:1.5rem}
.industry-benefits-grid .glass-card h3{font-size:1.4rem;font-weight:400;margin-bottom:1rem}
.industry-benefits-grid .glass-card p{color:var(--muted);line-height:1.6}
.video-frame{position:relative;width:100%;max-width:900px;margin:0 auto;aspect-ratio:16/9;border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 60px -30px rgba(0,0,0,.7)}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* testimonials marquee */
.testimonials-section{padding:5rem 0;overflow:hidden}
.carousel-track-container{overflow:hidden;width:100%;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.carousel-track{display:flex;gap:1.4rem;width:max-content;animation:marquee 70s linear infinite}
.carousel-track:hover{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(-50%)}}
.carousel-track .bento-card{min-width:360px;max-width:360px}
.card-header{margin-bottom:0}

/* deep dive accordion */
.deep-dive-section{padding:6rem 0;background:rgba(6,33,46,.45);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.deep-dive-header{text-align:center;max-width:52rem;margin:0 auto 3rem}
.section-desc{color:var(--muted);font-size:1.1rem;margin-top:1rem;line-height:1.7}
.accordion-wrapper{max-width:62rem;margin:0 auto;display:flex;flex-direction:column;gap:.8rem}
.accordion-item{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.accordion-item[open]{border-color:rgba(63,214,192,.35)}
.accordion-trigger{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.4rem 1.6rem;cursor:pointer;list-style:none}
.accordion-trigger::-webkit-details-marker{display:none}
.problem-title{color:var(--ink-bright);font-family:var(--font-heading);font-size:1.1rem;font-weight:400}
.accordion-icon{color:var(--teal-bright);transition:transform .3s}
.accordion-item[open] .accordion-icon{transform:rotate(180deg)}
.accordion-content{padding:0 1.6rem 1.6rem}
.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
.problem-block,.solution-block{color:var(--muted);font-size:.95rem;line-height:1.7}
.problem-block strong,.solution-block strong{color:var(--ink-bright);font-weight:500}
.ref-group{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.9rem}
.ref-link{font-family:var(--font-mono);font-size:.7rem;color:var(--teal-bright);border:1px solid var(--line);padding:.25rem .55rem;border-radius:6px;transition:.2s}
.ref-link:hover{background:rgba(38,159,146,.12);color:#fff}
@media(max-width:900px){
  .industry-split-grid,.industry-benefits-grid,.content-grid{grid-template-columns:1fr}
}

/* ===================== BLOG ARTICLE ===================== */
.article-hero{padding:7rem 0 3rem;border-bottom:1px solid var(--line)}
.article-hero .container{max-width:840px}
.hero-meta{font-family:var(--font-mono);font-size:.82rem;color:var(--teal-bright);display:flex;gap:.75rem;align-items:center;margin-bottom:1.2rem;flex-wrap:wrap;text-transform:uppercase;letter-spacing:.05em}
.article-title{font-size:clamp(2.1rem,4vw,3rem);font-weight:200;line-height:1.15;margin-bottom:1rem}
.article-subtitle{font-size:1.3rem;color:var(--muted);font-weight:300;margin-bottom:1.5rem}
.author-name{color:var(--muted);font-size:1.05rem}
.author-name span{color:var(--teal-bright)}
.blog-article-wrapper{padding:4rem 0}
.blog-article-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:clamp(1.5rem,4vw,3rem);max-width:840px;margin:0 auto}
.article-content h2{font-size:1.75rem;font-weight:400;margin:2.2rem 0 1rem;color:var(--ink-bright)}
.article-content h3{font-size:1.25rem;font-weight:500;margin:1.6rem 0 .7rem;color:var(--ink)}
.article-content p{color:var(--muted);margin-bottom:1.1rem}
.article-content ul,.article-content ol{color:var(--muted);margin:0 0 1.2rem 1.3rem}
.article-content li{margin-bottom:.5rem}
.article-content strong{color:var(--ink);font-weight:500}
.article-content a{color:var(--teal-bright);text-decoration:underline;text-underline-offset:2px}
.article-content hr{border:none;border-top:1px solid var(--line);margin:2.2rem 0}
.article-content img{border-radius:12px;margin:1rem auto;border:1px solid var(--line)}
.article-content em{color:var(--muted-2)}
.article-content table{width:100%;border-collapse:collapse;margin:1.6rem 0;font-family:var(--font-mono);font-size:.84rem}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left;color:var(--muted)}
.article-content thead{background:rgba(255,255,255,.04)}
.article-content th{color:var(--ink)}
.latest-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.4rem}
.blog-list-item{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.3s}
.blog-list-item:hover{border-color:rgba(63,214,192,.35);transform:translateY(-4px)}
.blog-list-link{display:block;padding:1.6rem}
.blog-list-type-mono{font-family:var(--font-mono);font-size:.72rem;color:var(--teal-bright);text-transform:uppercase;letter-spacing:.05em}
.blog-list-title{font-size:1.15rem;font-weight:400;color:var(--ink-bright);margin:.6rem 0;line-height:1.35}
.blog-list-meta{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-mono);font-size:.75rem;color:var(--muted)}
.blog-list-read{color:var(--teal-bright)}

/* ===================== CALCULATOR HUB ===================== */
.section-solid{background:rgba(6,33,46,.55);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;margin-top:3rem}
.step-card{text-align:center;padding:2rem 1.5rem;background:var(--panel);border:1px solid var(--line);border-radius:16px;transition:.3s}
.step-card:hover{transform:translateY(-4px);border-color:rgba(63,214,192,.35)}
.step-card .step-number{width:48px;height:48px;border-radius:50%;background:var(--grad);color:#04141d;display:grid;place-items:center;font-family:var(--font-mono);font-weight:700;font-size:1.2rem;margin:0 auto 1.25rem}
.step-card h3{font-size:1.1rem;font-family:var(--font-mono);color:var(--ink-bright);margin-bottom:.75rem;font-weight:400}
.step-card p{font-size:.9rem;color:var(--muted);line-height:1.5}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:3rem}
.value-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:2rem;text-align:center;transition:.3s}
.value-card:hover{transform:translateY(-4px);border-color:rgba(63,214,192,.35)}
.value-card i{font-size:2.4rem;color:var(--teal-bright);margin-bottom:1rem}
.value-card h3{font-size:1.1rem;color:var(--ink-bright);margin-bottom:.75rem;font-weight:400}
.value-card p{font-size:.9rem;color:var(--muted);line-height:1.6}
.calc-grid{display:grid;grid-template-columns:1fr;gap:1.4rem;max-width:760px;margin:3rem auto 0}
.calc-card{display:flex;align-items:flex-start;gap:2rem;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:2.2rem;text-align:left;transition:.3s}
.calc-card:hover{transform:translateY(-3px);border-color:rgba(63,214,192,.35)}
.calc-card-icon{width:72px;height:72px;min-width:72px;border-radius:16px;background:var(--grad);display:grid;place-items:center}
.calc-card-icon i{font-size:1.8rem;color:#04141d}
.calc-card-content h3{font-size:1.4rem;color:var(--ink-bright);margin-bottom:.5rem;font-weight:400}
.calc-card-content p{font-size:.95rem;color:var(--muted);line-height:1.6;margin-bottom:1.3rem}
.coming-soon-badge{display:inline-block;background:rgba(255,255,255,.04);color:var(--muted);font-size:.72rem;font-family:var(--font-mono);padding:.35rem .75rem;border-radius:50px;border:1px solid var(--line)}
@media(max-width:900px){
  .steps-grid{grid-template-columns:1fr 1fr}
  .value-grid{grid-template-columns:1fr}
  .calc-card{flex-direction:column}
}

/* ===================== CLASSROOM (docs app) ===================== */
.classroom-layout{display:grid;grid-template-columns:300px 1fr;min-height:80vh}
.classroom-sidebar{border-right:1px solid var(--line);padding:2.5rem 1.5rem;background:rgba(6,33,46,.4);position:sticky;top:62px;height:calc(100vh - 62px);overflow-y:auto}
.sidebar-category{margin-bottom:.5rem}
.category-title{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-bright);padding:.7rem .5rem;cursor:pointer;border-radius:8px;transition:.2s}
.category-title:hover{background:rgba(255,255,255,.03)}
.category-list{list-style:none;padding:.2rem 0 .6rem;margin:0}
.category-item{margin:0}
.category-link{display:block;padding:.5rem .8rem;font-size:.92rem;color:var(--muted);border-radius:8px;border-left:2px solid transparent;transition:.2s}
.category-link:hover{color:var(--ink-bright);background:rgba(255,255,255,.03)}
.category-link.active{color:var(--teal-bright);border-left-color:var(--teal-bright);background:rgba(38,159,146,.08)}
.classroom-content{padding:3.5rem clamp(1.5rem,4vw,4rem);max-width:920px}
.doc-header{margin-bottom:2.5rem}
.doc-breadcrumbs,.doc-breadcrumbs-nav{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;margin-bottom:1.2rem}
.doc-breadcrumbs span{color:var(--teal-bright)}
.doc-title{font-size:clamp(2rem,3.5vw,2.8rem);font-weight:200;margin-bottom:1rem}
.doc-subtitle{font-size:1.2rem;color:var(--muted);font-weight:300}
.doc-body h2{font-size:1.8rem;font-weight:300;margin:0 0 1.2rem;color:var(--ink-bright)}
.doc-body h3{font-size:1.2rem;font-weight:500;margin:1.8rem 0 .8rem;color:var(--ink)}
.doc-body p{color:var(--muted);margin-bottom:1.1rem}
.doc-body ul,.doc-body ol{color:var(--muted);margin:0 0 1.2rem 1.3rem}
.doc-body li{margin-bottom:.6rem}
.doc-body strong{color:var(--ink);font-weight:500}
.doc-body a{color:var(--teal-bright)}
.doc-body table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.9rem}
.doc-body th,.doc-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;color:var(--muted);vertical-align:top}
.doc-body thead{background:rgba(255,255,255,.04)}
.doc-body th{color:var(--ink)}
.classroom-section-image{width:100%;border-radius:14px;border:1px solid var(--line);margin-bottom:1.5rem}
.lesson-share-bar{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.lesson-share-bar > div:first-child{font-family:var(--font-heading);font-weight:500;color:var(--teal-bright)}
.lesson-share-bar a{color:var(--muted);font-size:1.4rem;transition:.2s}
.lesson-share-bar a:hover{color:var(--teal-bright)}
@media(max-width:900px){
  .classroom-layout{grid-template-columns:1fr}
  .classroom-sidebar{position:static;height:auto;border-right:none;border-bottom:1px solid var(--line)}
}

/* utility */
.center{text-align:center}
.divider{height:1px;background:var(--line);border:none;margin:0}

@media(max-width:900px){
  .tech-grid,.process-grid,.impact-grid,.ind-grid,.quotes-grid{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr 1fr}
  .impact-item{border-right:none;border-bottom:1px solid var(--line);padding:1.4rem}
}
@media(max-width:600px){
  .tech-grid,.process-grid,.impact-grid,.ind-grid,.quotes-grid{grid-template-columns:1fr}
  .ind-card.tall{grid-row:auto}
  .footer-top{grid-template-columns:1fr}
}

/* Logo lockup (icon + KAIROSPACE TECHNOLOGIES wordmark, white for dark nav) */
.nav-logo{height:32px;width:auto}
.footer-logo img{height:34px;width:auto;margin-bottom:1.2rem}

/* ============================================================
   PRODUCT CAROUSEL — "instrument plate"
   Light studio plate on the dark shell; white product
   backgrounds are removed by mix-blend-mode:multiply.
   Markup: .pcar > .pcar-stage + .pcar-meta + .pcar-rail
   ============================================================ */
.pcar{position:relative;display:flex;flex-direction:column;gap:.85rem}
/* .is-armed is added by JS — without it the block renders as a static first frame */
.pcar.is-armed{opacity:0;transform:translateY(20px);
  transition:opacity .8s ease,transform .8s cubic-bezier(.22,.61,.36,1)}
.pcar.is-armed.is-in{opacity:1;transform:none}

/* --- stage --------------------------------------------------- */
.pcar-stage{
  position:relative;isolation:isolate;overflow:hidden;
  aspect-ratio:var(--stage-ar,4/3);border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:radial-gradient(115% 88% at 50% 0%,#ffffff 0%,#f1f6f7 44%,#d8e6ea 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.85),0 26px 60px -32px rgba(0,0,0,.85);
  cursor:zoom-in;touch-action:pan-y;
  transition:border-color .4s ease,box-shadow .4s ease;
}
.pcar:hover .pcar-stage,.pcar:focus-within .pcar-stage{
  border-color:rgba(63,214,192,.34);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.85),0 34px 74px -30px rgba(0,0,0,.9),0 0 0 1px rgba(63,214,192,.14);
}
/* studio light: rim highlight on top, soft floor shadow at the base */
.pcar-stage::before{
  content:"";position:absolute;inset:0;z-index:3;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.55),transparent 20%),
             radial-gradient(120% 78% at 50% 116%,rgba(4,20,29,.15),transparent 62%);
}
/* pointer-tracked teal wash */
.pcar-stage::after{
  content:"";position:absolute;inset:0;z-index:4;pointer-events:none;
  background:radial-gradient(280px 280px at var(--mx,50%) var(--my,50%),rgba(38,159,146,.20),transparent 68%);
  mix-blend-mode:multiply;opacity:0;transition:opacity .45s ease;
}
.pcar:hover .pcar-stage::after{opacity:1}

/* --- slides -------------------------------------------------- */
.pcar-slides{position:absolute;inset:0;z-index:2}
.pcar-slide{
  position:absolute;inset:0;
  padding:clamp(1rem,4%,2.4rem);
  opacity:0;visibility:hidden;
  transform:translateX(calc(var(--dir,1) * 34px)) scale(.982);
  transition:opacity .6s cubic-bezier(.22,.61,.36,1),
             transform .85s cubic-bezier(.22,.61,.36,1),
             visibility 0s .85s;
}
.pcar-slide.is-active{
  opacity:1;visibility:visible;transform:none;z-index:2;transition-delay:0s;
}
.pcar-slide.is-leaving{
  opacity:0;visibility:visible;z-index:1;
  transform:translateX(calc(var(--dir,1) * -34px)) scale(.982);
  transition:opacity .5s ease,transform .8s cubic-bezier(.22,.61,.36,1);
}
.pcar-slide img{
  width:100%;height:100%;object-fit:contain;object-position:center;
  mix-blend-mode:multiply;
}
/* slow drift on the visible frame */
.pcar-slide.is-active img{animation:pcarDrift 11s ease-out forwards}
@keyframes pcarDrift{from{transform:scale(1)}to{transform:scale(1.04)}}

/* --- instrument corner brackets ------------------------------ */
.pcar-brackets{position:absolute;inset:15px;z-index:5;pointer-events:none}
.pcar-brackets i{
  position:absolute;width:16px;height:16px;
  border:1.5px solid rgba(38,159,146,.55);
  opacity:0;transition:opacity .5s ease,transform .5s cubic-bezier(.22,.61,.36,1);
}
.pcar-brackets i:nth-child(1){top:0;left:0;border-right:0;border-bottom:0;transform:translate(7px,7px)}
.pcar-brackets i:nth-child(2){top:0;right:0;border-left:0;border-bottom:0;transform:translate(-7px,7px)}
.pcar-brackets i:nth-child(3){bottom:0;left:0;border-right:0;border-top:0;transform:translate(7px,-7px)}
.pcar-brackets i:nth-child(4){bottom:0;right:0;border-left:0;border-top:0;transform:translate(-7px,-7px)}
.pcar:hover .pcar-brackets i{opacity:1;transform:none}

/* --- controls ------------------------------------------------ */
.pcar-nav,.pcar-zoom{
  position:absolute;z-index:6;display:none;place-items:center;cursor:pointer;
  border:1px solid rgba(4,20,29,.12);background:rgba(255,255,255,.74);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  color:#04141d;opacity:0;
  transition:opacity .3s ease,transform .3s cubic-bezier(.22,.61,.36,1),background .3s,border-color .3s,box-shadow .3s;
}
.pcar.is-armed .pcar-nav,.pcar.is-armed .pcar-zoom{display:grid}
.pcar-nav{top:50%;width:44px;height:44px;border-radius:50%}
.pcar-nav.prev{left:14px;transform:translateY(-50%) translateX(-8px)}
.pcar-nav.next{right:14px;transform:translateY(-50%) translateX(8px)}
.pcar-zoom{top:14px;right:14px;width:36px;height:36px;border-radius:11px;transform:translateY(-6px)}
.pcar:hover .pcar-nav,.pcar:focus-within .pcar-nav{opacity:1;transform:translateY(-50%)}
.pcar:hover .pcar-zoom,.pcar:focus-within .pcar-zoom{opacity:1;transform:none}
.pcar-nav:hover,.pcar-zoom:hover{background:#fff;border-color:rgba(38,159,146,.55);box-shadow:0 8px 20px rgba(4,20,29,.2)}
.pcar-nav:focus-visible,.pcar-zoom:focus-visible,.pcar-thumb:focus-visible{outline:2px solid var(--teal-bright);outline-offset:3px;opacity:1}
.pcar-nav .material-symbols-outlined{font-size:22px}
.pcar-zoom .material-symbols-outlined{font-size:19px}

/* --- caption ------------------------------------------------- */
.pcar-meta{display:flex;align-items:flex-start;gap:.9rem;min-height:3.1rem}
.pcar-idx{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;
  color:var(--teal-bright);white-space:nowrap;padding-top:.2rem;
  transition:opacity .3s ease;
}
.pcar-cap{
  color:var(--muted);font-size:.95rem;line-height:1.55;
  transition:opacity .35s ease,transform .35s cubic-bezier(.22,.61,.36,1);
}
.pcar-meta.is-swap .pcar-cap{opacity:0;transform:translateY(7px)}
.pcar-meta.is-swap .pcar-idx{opacity:.35}

/* --- thumbnail rail ------------------------------------------ */
.pcar-rail{display:flex;gap:.55rem;padding:0;margin:0;list-style:none}
.pcar-thumb{
  flex:1 1 0;position:relative;aspect-ratio:4/3;padding:0;cursor:pointer;
  border-radius:11px;overflow:hidden;
  border:1px solid var(--line);
  background:radial-gradient(120% 100% at 50% 0%,#fff 0%,#e6eef1 100%);
  opacity:.58;filter:saturate(.8);
  transition:opacity .4s ease,transform .4s cubic-bezier(.22,.61,.36,1),
             border-color .4s ease,box-shadow .4s ease;
}
.pcar-thumb img{width:100%;height:100%;object-fit:contain;padding:7px;mix-blend-mode:multiply}
.pcar-thumb:hover{opacity:.92;filter:none;transform:translateY(-3px)}
.pcar-thumb.is-active{
  opacity:1;filter:none;border-color:rgba(63,214,192,.55);
  box-shadow:0 0 0 1px rgba(63,214,192,.3),0 12px 26px -14px rgba(0,0,0,.8);
}
/* staggered rail entrance */
.pcar.is-armed:not(.is-in) .pcar-thumb{opacity:0;transform:translateY(12px)}
.pcar.is-in .pcar-thumb{transition-delay:calc(140ms + var(--i,0) * 70ms)}
.pcar.is-in .pcar-thumb.is-active{opacity:1}
.pcar.is-in .pcar-thumb:hover{transition-delay:0s}

/* --- autoplay progress --------------------------------------- */
.pcar-progress{height:2px;border-radius:2px;background:var(--line);overflow:hidden}
.pcar-progress i{display:block;height:100%;width:100%;background:var(--grad);transform:scaleX(0);transform-origin:left}
.pcar-progress i.is-running{animation:pcarFill var(--dur,7s) linear forwards}
@keyframes pcarFill{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* --- card wrapper (peripherals grid) ------------------------- */
.pcar-card{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:1.3rem;
  transition:border-color .3s ease,transform .3s cubic-bezier(.22,.61,.36,1);
}
.pcar-card:hover{border-color:rgba(63,214,192,.35);transform:translateY(-4px)}
.pcar-card-body{padding:1.4rem .4rem .2rem}
.pcar-card-body h3{font-size:1.5rem;font-weight:400;margin-bottom:.5rem}
.pcar-card-body p{color:var(--muted)}
.pcar--compact .pcar-rail{gap:.45rem}
.pcar--compact .pcar-cap{font-size:.9rem}

/* --- lightbox ------------------------------------------------ */
.pcar-lb{
  position:fixed;inset:0;z-index:1200;display:none;
  place-items:center;padding:5vmin;
  background:rgba(2,10,15,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.pcar-lb.is-open{display:grid;animation:pcarFade .32s ease both}
@keyframes pcarFade{from{opacity:0}to{opacity:1}}
.pcar-lb-inner{position:relative;display:flex;flex-direction:column;align-items:center;gap:1.1rem;max-width:100%}
.pcar-lb-plate{
  border-radius:18px;padding:2.4vmin;
  background:radial-gradient(120% 100% at 50% 0%,#fff 0%,#e9f0f2 100%);
  box-shadow:0 50px 110px -40px #000;
  animation:pcarZoomIn .45s cubic-bezier(.22,.61,.36,1) both;
}
@keyframes pcarZoomIn{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}
.pcar-lb-plate img{max-width:86vw;max-height:74vh;width:auto;height:auto;mix-blend-mode:multiply}
.pcar-lb-cap{
  color:var(--ink);font-size:.95rem;text-align:center;max-width:46rem;
  display:flex;gap:.8rem;align-items:baseline;justify-content:center;flex-wrap:wrap;
}
.pcar-lb-cap b{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;color:var(--teal-bright);font-weight:400}
.pcar-lb-close,.pcar-lb-nav{
  position:fixed;z-index:2;display:grid;place-items:center;cursor:pointer;
  border-radius:50%;border:1px solid var(--line-2);
  background:rgba(255,255,255,.06);color:var(--ink-bright);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  transition:background .25s,border-color .25s,transform .25s;
}
.pcar-lb-close{top:24px;right:24px;width:44px;height:44px}
.pcar-lb-nav{top:50%;margin-top:-26px;width:52px;height:52px}
.pcar-lb-nav.prev{left:24px}
.pcar-lb-nav.next{right:24px}
.pcar-lb-close:hover,.pcar-lb-nav:hover{background:rgba(63,214,192,.16);border-color:rgba(63,214,192,.5);transform:scale(1.06)}
body.pcar-lb-open{overflow:hidden}

/* --- responsive ---------------------------------------------- */
@media(max-width:900px){
  .pcar-nav,.pcar-zoom{opacity:1;transform:none}
  .pcar-nav.prev,.pcar-nav.next{transform:translateY(-50%)}
  .pcar-brackets i{opacity:1;transform:none}
}
@media(max-width:600px){
  .pcar-stage{aspect-ratio:1/1}
  .pcar--compact .pcar-stage{aspect-ratio:1/1}
  .pcar-nav{width:38px;height:38px}
  .pcar-lb-nav{width:44px;height:44px}
  .pcar-lb-close{top:14px;right:14px}
  .pcar-lb-nav.prev{left:8px}.pcar-lb-nav.next{right:8px}
}

/* --- reduced motion ------------------------------------------ */
@media (prefers-reduced-motion:reduce){
  .pcar,.pcar-slide,.pcar-cap,.pcar-thumb,.pcar-nav,.pcar-zoom,.pcar-brackets i,.pcar-card{
    transition-duration:.01ms!important;
  }
  .pcar-slide.is-active img,.pcar-progress i.is-running,.pcar-lb-plate,.pcar-lb.is-open{animation:none!important}
  .pcar.is-armed{opacity:1;transform:none}
  .pcar.is-armed:not(.is-in) .pcar-thumb{opacity:.58;transform:none}
}

/* ---- Skip link (WCAG 2.4.1 Bypass Blocks) ---------------------------------
   The header is injected by layout.js and carries ~40 links, so a keyboard or
   screen-reader user previously had to tab the whole nav on every one of 150
   pages before reaching content. Visually hidden until focused. */
.skip-link {
  position: absolute;
  left: 0; top: 0;
  transform: translateY(-120%);
  z-index: 10000;
  padding: .75rem 1.25rem;
  background: var(--teal-bright);
  color: var(--navy);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .95rem;
  text-decoration: none;
  border-radius: 0 0 8px 0;
  transition: transform .18s ease;
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--ink-bright);
  outline-offset: 2px;
}
#main-content:focus { outline: none; }

/* ===================== EDITORIAL: LONG-FORM BLOG ===================== *
 * Components for the Fundamentals / Field Notes series. Built entirely
 * from the existing token set — no new colors, no new fonts.
 *
 * The organizing idea: this series' differentiator is that every figure
 * says where it came from. That was buried in prose. These components
 * make provenance a visible property of the page.
 * ==================================================================== */

/* --- The answer block ------------------------------------------------
 * Each question-h2 is followed by a 40-60 word direct answer. It is the
 * unit search engines and assistants extract, so it should look like a
 * unit. Left rule + brighter ink, no box: it must read as the opening of
 * the section, not as an aside pulled out of it. */
.article-content .answer-lede{
  border-left:2px solid var(--teal-bright);
  padding:.1rem 0 .1rem 1.15rem;
  margin:0 0 1.5rem;
}
.article-content .answer-lede p{
  color:var(--ink);
  font-size:1.06rem;
  line-height:1.62;
  margin-bottom:0;
}

/* --- Provenance chips ------------------------------------------------
 * Three tiers, three treatments. Field data is ours and reads solid;
 * research is someone else's and reads outlined; independent lab sits
 * between. Never restyle these to look equally authoritative. */
.article-content .prov{
  display:inline-flex;align-items:center;gap:.4rem;
  font-family:var(--font-mono);font-size:.68rem;
  text-transform:uppercase;letter-spacing:.06em;
  padding:.25rem .6rem;border-radius:999px;
  border:1px solid var(--line-2);color:var(--muted);
  white-space:nowrap;vertical-align:middle;
}
.article-content .prov::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:currentColor;flex:none;
}
.article-content .prov-field{
  color:#04141d;background:var(--teal-bright);border-color:transparent;font-weight:700;
}
.article-content .prov-research{ color:var(--muted); }
.article-content .prov-lab{
  color:var(--teal-bright);border-color:rgba(63,214,192,.45);
  background:rgba(63,214,192,.07);
}

/* --- Figure callout --------------------------------------------------
 * A headline number, its unit, and where it came from — in that order,
 * because the provenance is the point. */
.article-content .figure-callout{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem 1.1rem;
  background:var(--panel);border:1px solid var(--line);
  border-left:3px solid var(--teal-bright);
  border-radius:14px;padding:1.15rem 1.35rem;margin:1.6rem 0;
}
.article-content .figure-callout .fc-value{
  font-family:var(--font-mono);font-size:1.6rem;line-height:1.1;
  color:var(--ink-bright);font-weight:500;letter-spacing:-.01em;
}
.article-content .figure-callout .fc-label{
  color:var(--muted);font-size:.95rem;flex:1 1 12rem;min-width:0;
}
.article-content .figure-callout .fc-note{
  flex:1 1 100%;color:var(--muted-2);font-size:.84rem;
  margin:0;padding-top:.2rem;
}

/* --- Caveat -----------------------------------------------------------
 * What the evidence does not establish. The series says this constantly
 * and it is the reason the posts are worth citing — so it gets a
 * component rather than a sentence lost mid-paragraph. Deliberately
 * quiet: an admission, not a warning. */
.article-content .caveat{
  background:rgba(255,255,255,.02);
  border:1px dashed var(--line-2);
  border-radius:14px;padding:1.15rem 1.35rem;margin:1.6rem 0;
}
.article-content .caveat-label{
  display:block;font-family:var(--font-mono);font-size:.7rem;
  text-transform:uppercase;letter-spacing:.09em;
  color:var(--muted-2);margin-bottom:.5rem;
}
.article-content .caveat p{margin-bottom:.6rem;font-size:.94rem}
.article-content .caveat p:last-child{margin-bottom:0}

/* --- Pull quote -------------------------------------------------------
 * Promotes a sentence already in the argument. Never duplicate body text
 * into one of these — the word-count and translation-ratio checks in
 * blog-harness.mjs both read the rendered body. */
.article-content .pull-quote{
  margin:2rem 0;padding:0 0 0 1.4rem;
  border-left:1px solid var(--line-2);
}
.article-content .pull-quote p{
  font-family:var(--font-heading);
  font-size:1.35rem;line-height:1.45;font-weight:300;
  color:var(--ink-bright);margin-bottom:0;
}

/* --- Spec list --------------------------------------------------------
 * For enumerations that were running as prose: instruments to fit,
 * questions to ask a vendor, failure modes to rule out. */
.article-content .spec-list{list-style:none;margin:1.4rem 0;padding:0}
.article-content .spec-list li{
  position:relative;padding-left:1.5rem;margin-bottom:.7rem;color:var(--muted);
}
.article-content .spec-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:7px;height:1px;background:var(--teal-bright);
}
.article-content .spec-list li strong{color:var(--ink)}

/* --- Numbered steps ---------------------------------------------------
 * Worked arithmetic and pilot procedure. */
.article-content .step-flow{list-style:none;counter-reset:sf;margin:1.6rem 0;padding:0}
.article-content .step-flow li{
  counter-increment:sf;position:relative;
  padding:0 0 1.15rem 2.6rem;margin:0;color:var(--muted);
  border-left:1px solid var(--line);
}
.article-content .step-flow li:last-child{border-left-color:transparent;padding-bottom:0}
.article-content .step-flow li::before{
  content:counter(sf);position:absolute;left:-11px;top:-2px;
  width:22px;height:22px;border-radius:50%;
  background:var(--navy-2);border:1px solid var(--line-2);
  color:var(--teal-bright);font-family:var(--font-mono);font-size:.7rem;
  display:grid;place-items:center;
}
.article-content .step-flow li strong{color:var(--ink);display:block;margin-bottom:.25rem}

/* --- Table wrapper — tables must scroll, the page must not ------------ */
.article-content .table-scroll{overflow-x:auto;margin:1.6rem 0;-webkit-overflow-scrolling:touch}
.article-content .table-scroll>table{margin:0;min-width:32rem}

@media(max-width:640px){
  .article-content .figure-callout .fc-value{font-size:1.35rem}
  .article-content .pull-quote p{font-size:1.15rem}
  .article-content .answer-lede{padding-left:.95rem}
}

/* ============================================================
   BLOG INDEX — EDITORIAL LIST
   ------------------------------------------------------------
   A long listing is a table of contents, not a card wall. In the
   4-up grid each post got ~290px to hold ten words, so the cards
   were mostly empty and every row stood as tall as whichever
   title happened to wrap to three lines. As a list each post gets
   the full measure, the dek has somewhere to live, and the dates
   line up in a column you can scan.

   Scoped to .post-index, which is only on the long listings. The
   3-up "related posts" footers share these class names and must
   keep their cards — three across is right for three items.

   Mobile-first: below 820px this inherits the card grid unchanged,
   because the cards were never the problem at that width.
   ============================================================ */
.post-index .blog-list-stamp time{font-family:var(--font-mono);font-size:.74rem;color:var(--muted-2);letter-spacing:.04em;font-variant-numeric:tabular-nums;display:block;margin-bottom:.45rem}
.post-index .blog-list-dek{color:var(--muted);font-size:.92rem;line-height:1.55;margin:.5rem 0 0}
.post-index .blog-list-read{display:inline-block;margin-top:1.1rem;font-family:var(--font-mono);font-size:.75rem}

@media(min-width:820px){
  .post-index{display:block}

  /* Hairline-separated rows, no box. Hovering brackets the row between
     two teal rules: its own top border and the next row's. */
  .post-index .blog-list-item{background:none;border:0;border-top:1px solid var(--line);border-radius:0;overflow:visible;transition:background .3s,border-color .3s}
  .post-index .blog-list-item:last-child{border-bottom:1px solid var(--line)}
  .post-index .blog-list-item:hover{transform:none;border-top-color:rgba(63,214,192,.45);background:linear-gradient(90deg,rgba(63,214,192,.06),transparent 60%)}
  .post-index .blog-list-item:hover + .blog-list-item{border-top-color:rgba(63,214,192,.45)}
  .post-index .blog-list-item:last-child:hover{border-bottom-color:rgba(63,214,192,.45)}

  /* The rail is wide enough for "KST EXPERIMENTAL SERIES" on one line — the
     longest tag in the set. Narrower and it wraps, which breaks the row
     rhythm wherever that series is interleaved with the others. */
  .post-index .blog-list-link{position:relative;display:grid;grid-template-columns:11.5rem minmax(0,1fr) auto;column-gap:2.25rem;align-items:start;padding:1.7rem 1rem 1.8rem 1.6rem}

  /* The teal rule grows down the left edge on hover — the same idiom as
     .answer-lede inside the articles, so the index rhymes with them. */
  .post-index .blog-list-link::before{content:"";position:absolute;left:0;top:1.7rem;bottom:1.8rem;width:2px;background:var(--teal-bright);transform:scaleY(0);transform-origin:top;transition:transform .32s cubic-bezier(.4,0,.2,1)}
  .post-index .blog-list-item:hover .blog-list-link::before{transform:scaleY(1)}

  .post-index .blog-list-stamp{padding-top:.4rem}
  .post-index .blog-list-stamp time{margin-bottom:.5rem}
  .post-index .blog-list-title{font-size:clamp(1.2rem,1.55vw,1.45rem);font-weight:300;line-height:1.3;margin:0;color:var(--ink-bright)}
  .post-index .blog-list-dek{max-width:62ch}
  .post-index .blog-list-read{margin-top:0;padding-top:.55rem;white-space:nowrap;opacity:.5;transition:opacity .3s,transform .3s}
  .post-index .blog-list-item:hover .blog-list-read{opacity:1;transform:translateX(4px)}

  .post-index .blog-list-link:focus-visible{outline:2px solid var(--teal-bright);outline-offset:-2px;border-radius:6px}
}

@media(prefers-reduced-motion:reduce){
  .post-index .blog-list-item,.post-index .blog-list-link::before,.post-index .blog-list-read{transition-duration:.01ms!important}
}

/* ============================================================
   POST REFERENCES + CALLOUT SOURCE
   ------------------------------------------------------------
   Every figure a post attributes to published research now names
   the paper and resolves through doi.org. The callout carries the
   one source its number came from; the list at the foot carries
   everything the post leaned on.

   The list sits OUTSIDE .article-content deliberately. The harness
   word-counts the article body and holds each Spanish post to a
   ratio of its own English, and a reference list is the same
   English titles in both languages — inside the body it would drag
   that ratio toward 1.0 and fail a check that exists to catch
   under-translation.
   ============================================================ */
.article-content .figure-callout .fc-source{margin:.9rem 0 0;font-family:var(--font-mono);font-size:.72rem;color:var(--muted-2)}
.article-content .figure-callout .fc-source a{color:var(--teal-bright);text-decoration:none;border-bottom:1px solid rgba(63,214,192,.35)}
.article-content .figure-callout .fc-source a:hover{border-bottom-color:var(--teal-bright)}

.post-refs{padding:3.5rem 0 5rem}
.post-refs>.container{border-top:1px solid var(--line);padding-top:2.6rem}
.post-refs h2{font-size:1.5rem;font-weight:300;color:var(--ink-bright);margin:0 0 .7rem}
.post-refs .refs-lead{color:var(--muted);font-size:.92rem;line-height:1.6;max-width:64ch;margin:0 0 2.2rem}
.post-refs ol{max-width:80ch;margin:0;padding-left:1.7rem;display:grid;gap:1.4rem}
.post-refs li{color:var(--muted);font-size:.92rem;line-height:1.6}
.post-refs li::marker{font-family:var(--font-mono);font-size:.78rem;color:var(--teal-bright)}
.post-refs .ref-cite{color:var(--ink-bright)}
.post-refs a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line-2);transition:color .25s,border-color .25s}
.post-refs a:hover{color:var(--teal-bright);border-bottom-color:var(--teal-bright)}
.post-refs .ref-journal{font-style:italic;color:var(--muted-2)}
.post-refs .ref-note{display:block;margin-top:.35rem}
.post-refs .ref-doi{display:block;margin-top:.2rem;font-family:var(--font-mono);font-size:.71rem;color:var(--muted-2);word-break:break-all}

/* ============================================================
   POST FIGURES
   ------------------------------------------------------------
   Inline SVG, no library, no raster. Colours come from the same
   tokens as the rest of the page so a figure inverts with the
   theme instead of shipping a baked-in background.

   .fig-src is not decoration: every figure states whether it is
   measured, calculated, or taken from a cited paper. A chart that
   cannot say which is the same unsourced number the claims table
   exists to prevent.
   ============================================================ */
.article-content .post-figure{margin:2.2rem 0 2.4rem;padding:1.4rem 1.3rem 1.1rem;background:var(--panel);border:1px solid var(--line);border-radius:16px}
.article-content .post-figure .fig-svg{display:block;width:100%;height:auto;overflow:visible}
.article-content .post-figure figcaption{margin-top:1rem;padding-top:.9rem;border-top:1px solid var(--line)}
.article-content .post-figure .fig-cap{display:block;color:var(--muted);font-size:.9rem;line-height:1.55}
.article-content .post-figure .fig-src{display:block;margin-top:.55rem;font-family:var(--font-mono);font-size:.7rem;line-height:1.5;color:var(--muted-2)}

.fig-svg .axis{stroke:var(--line-2);stroke-width:1}
.fig-svg .grid{stroke:var(--line);stroke-width:1;stroke-dasharray:2 4}
.fig-svg .band{fill:rgba(63,214,192,.07)}
.fig-svg .thr{stroke:var(--muted-2);stroke-width:1;stroke-dasharray:3 3}
.fig-svg .mk{stroke:var(--line-2);stroke-width:1}
.fig-svg .curve{fill:none;stroke:var(--teal-bright);stroke-width:2;stroke-linejoin:round}
.fig-svg .dot{fill:var(--teal-bright)}
.fig-svg .bar{fill:var(--teal-bright);opacity:.8}
.fig-svg text{font-family:var(--font-mono);fill:var(--muted)}
.fig-svg .ax,.fig-svg .thr-lb{font-size:11px;fill:var(--muted-2)}
.fig-svg .lb,.fig-svg .nm{font-size:12px;fill:var(--ink-bright)}
.fig-svg .vl,.fig-svg .vl2{font-size:11px;fill:var(--teal-bright)}
.fig-svg .vl2{font-size:13px}

/* ============================================================
   .pcar--field — the carousel, carrying photographs
   ============================================================
   The base .pcar is a light studio plate: white backdrop,
   object-fit:contain, mix-blend-mode:multiply. That is exactly
   right for a machined stainless body shot on seamless white
   and exactly wrong for a photograph taken in a field, where
   multiply drags the whole frame dark against the plate and
   contain leaves white bars down the sides.

   This modifier changes only what a photograph needs: full
   bleed, no blending, a dark plate under it. Everything else —
   transitions, brackets, rail, lightbox, keyboard nav — is the
   same component.
   ============================================================ */
/* The product carousels run the full container width, which is right for a 3:2
   stage. A field set is mostly phone portraits and runs on a square stage, and
   at full container width that stage is ~1440px tall — taller than the laptop
   viewport it has to be looked at in. Capping the width is what keeps the whole
   photograph, its caption and its rail on screen together. */
.pcar--field{max-width:min(760px,100%);margin-inline:auto}
.pcar--field .pcar-stage{
  background:linear-gradient(180deg,#0b2027 0%,#08191f 100%);
}
.pcar--field .pcar-slide{padding:0}
.pcar--field .pcar-slide img{object-fit:cover;mix-blend-mode:normal}
/* the studio rim-light and the teal multiply wash both read as haze on a
   photograph; keep a faint vignette for depth and drop the rest */
.pcar--field .pcar-stage::before{
  background:linear-gradient(180deg,rgba(4,20,29,.28),transparent 22%),
             radial-gradient(120% 78% at 50% 116%,rgba(4,20,29,.42),transparent 64%);
}
.pcar--field .pcar-stage::after{mix-blend-mode:soft-light}
.pcar--field .pcar-thumb{
  background:#0b2027;
  aspect-ratio:3/2;
}
.pcar--field .pcar-thumb img{object-fit:cover;padding:0;mix-blend-mode:normal}
/* On the industry pages the carousel is injected above the video, and
   .video-frame carries no top margin — the thumbnail rail ends and the video
   border starts on the next pixel. Space them so they read as two separate
   pieces of evidence rather than one stack. */
.pcar--field + .video-frame{margin-block-start:clamp(2.5rem,5vw,3.75rem)}
/* the lightbox is a single shared node, so the JS stamps .is-field on it
   while a field carousel owns it */
.pcar-lb.is-field .pcar-lb-plate{background:#08191f}
.pcar-lb.is-field .pcar-lb-plate img{mix-blend-mode:normal}