/* ============================================================
   A One International — shared design system
   「Industrial Precision」 dark + copper
   ============================================================ */
:root{
  --ink:#0c0e11; --ink-2:#14171c; --ink-3:#1c2026;
  --steel:#2b3038; --steel-line:rgba(255,255,255,.10);
  --paper:#f5f4f1; --paper-2:#ffffff; --paper-line:#e5e2db;
  --muted:#6c727b; --muted-d:rgba(255,255,255,.62);
  --copper:#c07a3e; --copper-br:#e0954f; --copper-soft:rgba(192,122,62,.14);
  --live:#e14b3a;
  --h:'Space Grotesk',sans-serif; --b:'Inter',sans-serif; --m:'JetBrains Mono',monospace;
  --wrap:1240px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--b);background:var(--paper);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5{font-family:var(--h);font-weight:600;line-height:1.05;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.eyebrow{font-family:var(--m);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--copper);font-weight:500}
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--h);font-weight:500;font-size:15px;padding:14px 26px;border-radius:2px;transition:.25s;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--copper);color:#fff}
.btn-primary:hover{background:var(--copper-br)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--steel)}
.btn-outline{border-color:var(--paper-line);color:var(--ink)}
.btn-outline:hover{border-color:var(--ink)}
.arrow{transition:transform .25s}
.btn:hover .arrow{transform:translateX(4px)}

/* ===== Header (shared, with mobile drawer) ===== */
header.site{position:absolute;top:0;left:0;right:0;z-index:60}
header.site.solid{position:sticky;background:var(--ink);border-bottom:1px solid var(--steel-line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:84px}
.brand{display:flex;align-items:center;gap:13px;color:#fff}
.brand .mark{width:42px;height:42px;border:1.5px solid var(--copper);display:grid;place-items:center;font-family:var(--h);font-weight:700;color:var(--copper);font-size:19px;letter-spacing:-.04em;flex:0 0 42px}
.brand b{font-family:var(--h);font-weight:600;font-size:19px;letter-spacing:-.01em;line-height:1}
.brand small{display:block;font-family:var(--m);font-size:10px;letter-spacing:.24em;color:var(--muted-d);text-transform:uppercase;margin-top:3px;font-weight:400}
.menu{display:flex;align-items:center;gap:28px}
.menu a{color:rgba(255,255,255,.82);font-size:15px;font-weight:500;transition:.2s;white-space:nowrap}
.menu a:hover,.menu a.active{color:#fff}
.nav-cta{display:flex;align-items:center;gap:18px}
.nav-phone{color:#fff;font-family:var(--h);font-weight:500;font-size:15px;display:flex;align-items:center;gap:8px;white-space:nowrap}
.btn{white-space:nowrap}
/* scene-based logo images */
.brand .logo-img{height:38px;width:auto;display:block}
footer.site .brand .logo-full{height:80px;width:auto;display:block}
@media(max-width:900px){ .brand .logo-img{height:34px} }
.nav-phone i{color:var(--copper);font-style:normal}
/* hamburger */
.burger{display:none;width:46px;height:46px;border:1px solid var(--steel-line);border-radius:2px;background:transparent;cursor:pointer;position:relative;z-index:70}
.burger span{position:absolute;left:11px;right:11px;height:1.6px;background:#fff;transition:.28s}
.burger span:nth-child(1){top:16px}.burger span:nth-child(2){top:22px}.burger span:nth-child(3){top:28px}
body.mnav .burger span:nth-child(1){top:22px;transform:rotate(45deg)}
body.mnav .burger span:nth-child(2){opacity:0}
body.mnav .burger span:nth-child(3){top:22px;transform:rotate(-45deg)}
/* mobile drawer */
.mdrawer{position:fixed;inset:0;background:var(--ink);z-index:65;display:flex;flex-direction:column;padding:100px 32px 40px;transform:translateX(100%);transition:transform .34s cubic-bezier(.4,0,.2,1);visibility:hidden}
body.mnav .mdrawer{transform:none;visibility:visible}
.mdrawer a.ml{color:#fff;font-family:var(--h);font-size:28px;font-weight:500;padding:16px 0;border-bottom:1px solid var(--steel-line);display:flex;justify-content:space-between;align-items:center}
.mdrawer a.ml .n{font-family:var(--m);font-size:12px;color:var(--copper);letter-spacing:.1em}
.mdrawer .mfoot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:30px}
.mdrawer .mfoot .btn{justify-content:center}
.mdrawer .mfoot .mc{color:var(--muted-d);font-family:var(--m);font-size:13px;letter-spacing:.06em}

/* ===== Page hero (interior pages) ===== */
.phero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:150px 0 64px}
.phero .phero-bg{position:absolute;inset:0}
.phero .phero-bg img{width:100%;height:100%;object-fit:cover;opacity:.32}
.phero .phero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,12,15,.95),rgba(10,12,15,.55) 70%,rgba(10,12,15,.35))}
.phero .wrap{position:relative;z-index:2}
.crumb{font-family:var(--m);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-d);margin-bottom:20px}
.crumb b{color:var(--copper);font-weight:400}
.phero h1{font-size:clamp(38px,5.4vw,72px);max-width:16ch}
.phero h1 .cu{color:var(--copper)}
.phero p.lead{color:var(--muted-d);font-size:19px;max-width:56ch;margin-top:22px}

/* ===== Generic sections ===== */
section{position:relative}
.sec{padding:100px 0}
.sec.light{background:var(--paper)} .sec.white{background:var(--paper-2)} .sec.dark{background:var(--ink);color:#fff}
.sec.dark h2,.sec.dark h3{color:#fff}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:52px}
.sec-head.center{flex-direction:column;align-items:center;text-align:center}
.sec-head h2{font-size:clamp(30px,4vw,50px)}
.sec-head .eyebrow{margin-bottom:16px;display:block}
.sec-head p{color:var(--muted);max-width:44ch;font-size:16px}
.sec.dark .sec-head p{color:var(--muted-d)}

/* split (text + media) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.split.rev .split-media{order:2}
.split-media img{width:100%;height:520px;object-fit:cover;border-radius:3px}
.split h2{font-size:clamp(28px,3.6vw,44px);margin:14px 0 20px}
.split .lead{color:var(--muted);font-size:17px;margin-bottom:24px}
.sec.dark .split .lead{color:var(--muted-d)}
.ulist{list-style:none;display:flex;flex-direction:column;gap:2px}
.ulist li{padding:14px 0;border-top:1px solid var(--paper-line);display:flex;gap:14px;align-items:flex-start;font-size:15.5px}
.sec.dark .ulist li{border-color:var(--steel-line)}
.ulist li::before{content:"▸";color:var(--copper);font-size:13px;margin-top:3px}

/* feature/spec cards grid */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--paper-line);border:1px solid var(--paper-line)}
.card{background:var(--paper-2);border:1px solid var(--paper-line);border-radius:3px;padding:34px;transition:.3s}
.card:hover{border-color:var(--copper);transform:translateY(-3px)}
.card .num{font-family:var(--m);font-size:12px;letter-spacing:.14em;color:var(--copper)}
.card h3{font-size:22px;margin:12px 0 10px}
.card p{color:var(--muted);font-size:15px}
.card .tags{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}
.card .tags span{font-family:var(--m);font-size:11px;color:var(--muted);border:1px solid var(--paper-line);padding:4px 9px;border-radius:2px}

/* spec table */
.spec{width:100%;border-collapse:collapse;font-size:15px}
.spec tr{border-bottom:1px solid var(--paper-line)}
.sec.dark .spec tr{border-color:var(--steel-line)}
.spec td{padding:15px 0}
.spec td:first-child{font-family:var(--m);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);width:42%;vertical-align:top}
.spec td:last-child{font-family:var(--h);font-weight:500}

/* process steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--steel-line);border:1px solid var(--steel-line)}
.step{background:var(--ink);padding:34px 28px}
.sec.light .step{background:var(--paper-2)}
.step .n{font-family:var(--h);font-size:40px;font-weight:700;color:var(--copper);line-height:1}
.step h4{font-size:19px;margin:16px 0 8px}
.step p{color:var(--muted-d);font-size:14.5px}
.sec.light .step p{color:var(--muted)}

/* stat rail */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--steel-line)}
.stats .st{padding:26px 0;border-right:1px solid var(--steel-line)}
.stats .st:last-child{border-right:none}
.stats .st b{font-family:var(--h);color:#fff;font-size:26px;font-weight:600;display:block;letter-spacing:-.02em}
.stats .st span{font-family:var(--m);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-d)}

/* ===== CTA band ===== */
.cta{padding:100px 0;background:var(--ink-2);color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;top:-40%;right:-8%;width:520px;height:520px;background:radial-gradient(circle,var(--copper-soft),transparent 68%)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center}
.cta h2{font-size:clamp(32px,4.4vw,56px);color:#fff}
.cta h2 .cu{color:var(--copper)}
.cta p{color:var(--muted-d);font-size:17px;margin:20px 0 0;max-width:46ch}
.cta-card{background:var(--ink);border:1px solid var(--steel-line);border-radius:4px;padding:38px}
.cta-card .row{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--steel-line);align-items:center}
.cta-card .row:last-child{border-bottom:none}
.cta-card .row i{color:var(--copper);font-family:var(--m);font-size:12px;flex:0 0 68px;letter-spacing:.12em;text-transform:uppercase;font-style:normal}
.cta-card .row b{font-family:var(--h);font-weight:500;font-size:16px}
.cta-card .btn{width:100%;justify-content:center;margin-top:22px}

/* ===== Footer ===== */
footer.site{background:var(--ink);color:var(--muted-d);padding:70px 0 34px}
.foot-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid var(--steel-line)}
footer.site h5{font-family:var(--m);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:#fff;margin-bottom:20px;font-weight:500}
footer.site ul{list-style:none;display:flex;flex-direction:column;gap:11px}
footer.site ul a{font-size:14.5px;transition:.2s}
footer.site ul a:hover{color:var(--copper)}
.foot-brand .brand{color:#fff;margin-bottom:18px}
.foot-brand p{font-size:14.5px;max-width:34ch}
.foot-bot{display:flex;justify-content:space-between;align-items:center;padding-top:26px;font-size:13px;flex-wrap:wrap;gap:12px}
.foot-bot .made{font-family:var(--m);letter-spacing:.08em}
.foot-bot .made b{color:var(--copper)}

/* ===== Responsive ===== */
@media(max-width:900px){
  .wrap{padding:0 20px}
  .menu,.nav-phone,.nav-cta .btn{display:none}
  .burger{display:block}
  .nav{height:72px}
  .brand small{display:none}
  .sec{padding:64px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:34px}
  .split,.grid-2,.grid-3,.grid-4,.steps,.stats,.cta-inner{grid-template-columns:1fr}
  .split.rev .split-media{order:0}
  .split-media img{height:340px}
  .steps,.stats{border:1px solid var(--steel-line)}
  .step,.stats .st{border-right:none;border-bottom:1px solid var(--steel-line)}
  .foot-top{grid-template-columns:1fr 1fr}
  .phero{padding:120px 0 48px}
}
@media(max-width:560px){ .foot-top{grid-template-columns:1fr} }

/* ============================================================
   Motion + icons (added)
   ============================================================ */
/* header full logo (with INTERNATIONAL) */
.nav{height:92px}
.brand .logo-img{height:58px;width:auto;display:block}
@media(max-width:900px){ .nav{height:76px} .brand .logo-img{height:46px} }

/* hero 3-image Ken Burns crossfade */
.hero-bg{overflow:hidden}
.hero-bg .slide{position:absolute;inset:0;opacity:0;animation:heroFade 21s infinite}
.hero-bg .slide img{width:100%;height:100%;object-fit:cover;opacity:1;animation:heroZoom 21s infinite}
.hero-bg .slide:nth-child(1),.hero-bg .slide:nth-child(1) img{animation-delay:0s}
.hero-bg .slide:nth-child(2),.hero-bg .slide:nth-child(2) img{animation-delay:7s}
.hero-bg .slide:nth-child(3),.hero-bg .slide:nth-child(3) img{animation-delay:14s}
@keyframes heroFade{0%{opacity:0}3%{opacity:1}30%{opacity:1}34%{opacity:0}100%{opacity:0}}
@keyframes heroZoom{0%{transform:scale(1.16)}34%{transform:scale(1.0)}100%{transform:scale(1.0)}}

/* hero content load reveal */
.hero-eyebrow,.hero h1,.hero .lead,.hero-actions{opacity:0;animation:up .9s cubic-bezier(.2,.6,.2,1) forwards}
.hero-eyebrow{animation-delay:.15s}.hero h1{animation-delay:.3s}.hero .lead{animation-delay:.5s}.hero-actions{animation-delay:.65s}
.phero .crumb,.phero h1,.phero .lead{opacity:0;animation:up .8s cubic-bezier(.2,.6,.2,1) forwards}
.phero h1{animation-delay:.15s}.phero .lead{animation-delay:.3s}
@keyframes up{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* scroll reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .75s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  .hero-bg .slide,.hero-bg .slide img,.hero-eyebrow,.hero h1,.hero .lead,.hero-actions,
  .phero .crumb,.phero h1,.phero .lead,.reveal{animation:none!important;opacity:1!important;transform:none!important}
  .hero-bg .slide:nth-child(1){opacity:1}
}

/* discipline icons */
.disc-ic{color:var(--copper);width:46px;height:46px;display:block}
.disc-ic svg{width:100%;height:100%}
.cap .disc-ic{margin-bottom:6px}
.cap:hover .disc-ic{color:var(--copper-br)}
/* icon panel (used in split-media on product pages) */
.icon-panel{width:100%;height:520px;border-radius:3px;background:
  radial-gradient(120% 120% at 30% 20%,rgba(192,122,62,.16),transparent 60%),var(--ink);
  border:1px solid var(--steel-line);display:grid;place-items:center;position:relative;overflow:hidden}
.icon-panel::after{content:"";position:absolute;inset:0;background:
  repeating-linear-gradient(0deg,transparent 0 38px,rgba(255,255,255,.03) 38px 39px),
  repeating-linear-gradient(90deg,transparent 0 38px,rgba(255,255,255,.03) 38px 39px)}
.icon-panel .big-ic{width:150px;height:150px;color:var(--copper);position:relative;z-index:2}
.icon-panel .big-ic svg{width:100%;height:100%}
@media(max-width:900px){.icon-panel{height:300px}.icon-panel .big-ic{width:110px;height:110px}}