:root{
  --navy:#1c3350;
  --navy-deep:#0f1e30;
  --blue-tint:#aac2eb;
  --blue-pale:#eef3fb;
  --blue-pale-2:#e2ebf8;
  --lime:#c6f000;
  --ink:#151b22;
  --ink-soft:#48545f;
  --ink-faint:#8593a0;
  --paper:#fbfcfd;
  --line:rgba(21,27,34,.13);
  --line-on-navy:rgba(255,255,255,.18);
  --container:1360px;
  --font-display:'IBM Plex Serif', Georgia, serif;
  --font-sans:'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:'IBM Plex Mono', 'Courier New', monospace;
}
*{ box-sizing:border-box; }
html{ overflow-x:hidden; width:100%; scroll-behavior:smooth; }
body{
  margin:0; background:var(--paper); color:var(--ink); font-family:var(--font-sans);
  font-weight:300; line-height:1.65; -webkit-font-smoothing:antialiased; overflow-x:hidden; width:100%;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
p{ margin:0 0 1.1em; }
p:last-child{ margin-bottom:0; }
[hidden]{ display:none !important; }

a:focus-visible, button:focus-visible{ outline:2px solid var(--navy); outline-offset:3px; border-radius:1px; }
.navy-bg a:focus-visible, .navy-bg button:focus-visible{ outline-color:#fff; }

.container{ max-width:var(--container); margin:0 auto; padding:0 48px; }
@media (max-width:720px){ .container{ padding:0 24px; } }

h1,h2,h3{ font-family:var(--font-display); font-weight:400; color:var(--navy); margin:0; text-wrap:balance; letter-spacing:-.01em; }
.navy-bg h1,.navy-bg h2,.navy-bg h3{ color:#fff; }

.label{
  font-family:var(--font-mono); font-size:11.5px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink-faint); display:block; margin-bottom:22px;
}
.navy-bg .label{ color:var(--blue-tint); }

.rule{ height:1px; background:var(--line); border:none; margin:0; }
.navy-bg .rule{ background:var(--line-on-navy); }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50; background:rgba(251,252,253,.88); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-row{ display:flex; align-items:center; justify-content:space-between; padding:22px 48px; max-width:var(--container); margin:0 auto; }
@media (max-width:720px){ .nav-row{ padding:18px 24px; } }
.brand-logo img{ height:22px; width:auto; display:block; }
.nav-links{ display:flex; align-items:center; gap:36px; list-style:none; margin:0; padding:0; font-size:13.5px; }
.nav-links a{ color:var(--ink-soft); font-weight:400; letter-spacing:.01em; position:relative; }
.nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px; height:1px; background:var(--navy);
  transform:scaleX(0); transform-origin:left; transition:transform .25s ease;
}
.nav-links a:hover::after{ transform:scaleX(1); }
.nav-right{ display:flex; align-items:center; gap:22px; }
.lang-switch{ display:flex; gap:10px; font-family:var(--font-mono); font-size:11.5px; letter-spacing:.06em; }
.lang-switch a{ color:var(--ink-faint); }
.lang-switch a:hover{ color:var(--navy); }
.lang-switch span[data-active]{ color:var(--navy); text-decoration:underline; text-underline-offset:3px; }
.nav-toggle{ display:none; background:none; border:none; padding:0; cursor:pointer; }
@media (max-width:860px){
  .nav-links{ display:none; }
  .nav-toggle{ display:block; }
}

/* ---------- text link (the only "button" language on this page) ---------- */
.textlink{
  display:inline-flex; align-items:center; gap:10px; font-family:var(--font-sans); font-size:14.5px;
  font-weight:500; color:var(--navy); border-bottom:1px solid var(--navy); padding-bottom:3px;
}
.navy-bg .textlink{ color:#fff; border-color:#fff; }
.textlink .arrow{ transition:transform .2s ease; }
.textlink:hover .arrow{ transform:translateX(4px); }

.outline-btn{
  display:inline-flex; align-items:center; gap:10px; font-family:var(--font-sans); font-size:14px; font-weight:500;
  padding:14px 26px; border:1px solid var(--navy); color:var(--navy); cursor:pointer;
}
.navy-bg .outline-btn{ border-color:rgba(255,255,255,.55); color:#fff; }
.outline-btn:hover{ background:var(--navy); color:#fff; }
.navy-bg .outline-btn:hover{ background:#fff; color:var(--navy); }

/* ---------- hero: full-bleed photograph, copy overlaid on its left (dark) side ---------- */
.hero{ position:relative; }
.hero-media-full{ position:relative; width:100%; aspect-ratio:16/10; overflow:hidden; background:var(--navy-deep); }
.hero-media-full img{ width:100%; height:100%; object-fit:cover; display:block; }
.hero-media-full::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(90deg, rgba(9,18,30,.64) 0%, rgba(9,18,30,.42) 30%, rgba(9,18,30,.10) 54%, rgba(9,18,30,0) 68%);
}
.hero-copy-wrap{ position:absolute; inset:0; display:flex; align-items:center; }
.hero-copy{ max-width:600px; color:#fff; padding:0 48px; }
.hero-copy h1{ color:#fff; font-size:clamp(28px,3.6vw,50px); line-height:1.12; margin-bottom:26px; }
.hero-copy .lede{ font-size:16.5px; color:rgba(255,255,255,.88); max-width:48ch; margin-bottom:24px; }
.hero-close{ font-family:var(--font-display); font-style:italic; font-size:17px; color:#fff; margin-bottom:28px; }
.hero-copy .textlink{ color:#fff; border-color:#fff; }
@media (max-width:820px){
  .hero-media-full{ aspect-ratio:4/3; }
  .hero-media-full::after{ display:none; }
  .hero-media-full img{ object-position:82% center; }
  .hero-copy-wrap{ position:static; display:block; }
  .hero-copy{ color:var(--ink); max-width:none; padding:32px 24px 40px; }
  .hero-copy h1{ color:var(--navy); font-size:clamp(26px,7vw,36px); }
  .hero-copy .lede{ color:var(--ink-soft); }
  .hero-close{ color:var(--navy); }
  .hero-copy .textlink{ color:var(--navy); border-color:var(--navy); }
}
@media (max-width:480px){
  .hero-media-full img{ object-position:88% center; }
}

/* ---------- generic section rhythm ---------- */
.section{ padding:92px 0; position:relative; scroll-margin-top:104px; }
.section.tight{ padding:68px 0; }
@media (max-width:860px){ .section{ padding:64px 0; } .section.tight{ padding:52px 0; } }
.section.pale{ background:var(--blue-pale); }
.section.navy-bg{ background:var(--navy-deep); color:var(--blue-pale); }
.section.navy-bg .lede, .section.navy-bg p{ color:var(--blue-tint); }

.editorial-head{ display:grid; grid-template-columns:5fr 7fr; gap:64px; align-items:start; margin-bottom:36px; }
@media (max-width:860px){ .editorial-head{ grid-template-columns:1fr; gap:20px; } }
.editorial-head h2{ font-size:clamp(26px,3vw,38px); line-height:1.18; }
.editorial-head .lede{ font-size:16.5px; color:var(--ink-soft); max-width:46ch; padding-top:6px; }
.navy-bg .editorial-head .lede{ color:var(--blue-tint); }

.prose{ max-width:64ch; font-size:16px; color:var(--ink-soft); }
.prose p{ margin-bottom:1.3em; }
.navy-bg .prose{ color:var(--blue-tint); }

/* asymmetric two-up: text column + generous image, offsets alternate */
.split{ display:grid; grid-template-columns:5fr 7fr; gap:72px; align-items:center; }
.split.reverse{ grid-template-columns:7fr 5fr; }
.split.reverse .split-media{ order:2; }
.split.reverse .split-text{ order:1; }
@media (max-width:900px){
  .split, .split.reverse{ grid-template-columns:1fr; gap:32px; }
  .split.reverse .split-media, .split.reverse .split-text{ order:initial; }
}
.split-media img{ width:100%; display:block; }
.split-media.inset{ padding:0 0 0 8%; }
@media (max-width:900px){ .split-media.inset{ padding:0; } }

/* fixed-ratio media boxes so layout never shifts */
.ratio-16x10{ aspect-ratio:16/10; overflow:hidden; }
.ratio-4x5{ aspect-ratio:4/5; overflow:hidden; }
.ratio-3x2{ aspect-ratio:3/2; overflow:hidden; }
.ratio-16x9{ aspect-ratio:16/9; overflow:hidden; border-radius:4px; }
.ratio-16x10 img, .ratio-4x5 img, .ratio-3x2 img, .ratio-16x9 img{ width:100%; height:100%; object-fit:cover; }

/* smaller, contained sizing for the two product (equipment) photos */
.media-contained{ max-width:560px; }
.split-media.media-contained{ max-width:340px; }
@media (max-width:900px){ .media-contained{ max-width:420px; } .split-media.media-contained{ max-width:280px; } }

/* a media box that keeps a photo's own native ratio (no forced crop), sized via inline aspect-ratio */
.media-native{ position:relative; overflow:hidden; }
.media-native img{ width:100%; height:100%; object-fit:contain; display:block; }

/* ---------- big technology / operational moment (reused across sections) ---------- */
.tech-frame{ position:relative; }
.tech-frame img{ width:100%; }
.tech-symbol-overlay{ position:absolute; bottom:-6%; left:-8%; width:34%; opacity:.09; }

/* technology section: editorial two-up — explanatory text + equipment photo as controlled evidence, not the page's lead image */
.split-tech{ display:grid; grid-template-columns:1fr 420px; gap:64px; align-items:center; margin-top:8px; }
.split-tech-media{ position:relative; width:100%; aspect-ratio:1/1; }
.split-tech-media img{ width:100%; height:100%; object-fit:contain; display:block; }
@media (max-width:900px){
  .split-tech{ grid-template-columns:1fr; gap:32px; }
  .split-tech-media{ max-width:320px; margin:0 auto; }
}

/* ---------- four phases sequence ---------- */
.phase-row{ display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); margin-top:20px; }
.phase-row .phase + .phase{ border-left:1px solid var(--line); }
.phase{ padding:32px 26px 0; position:relative; }
.phase .num{ font-family:var(--font-mono); font-size:13px; color:var(--ink-faint); display:block; margin-bottom:38px; }
.phase h3{ font-family:var(--font-sans); font-weight:500; font-size:16px; color:var(--navy); margin-bottom:10px; }
.phase p{ font-size:13.5px; color:var(--ink-soft); }
@media (max-width:860px){
  .phase-row{ grid-template-columns:1fr; border-top:none; }
  .phase-row .phase + .phase{ border-left:none; border-top:1px solid var(--line); }
  .phase .num{ margin-bottom:14px; }
  .phase{ padding:22px 0; }
}
.cycle-grid{ grid-template-columns:repeat(3,1fr); }
.cycle-grid .phase{ padding-top:26px; }
.cycle-grid .phase .num{ margin-bottom:18px; }
.cycle-grid .phase:nth-child(3n){ border-right:none; }
@media (max-width:860px){ .cycle-grid{ grid-template-columns:1fr; } }
@media (min-width:861px) and (max-width:1180px){ .cycle-grid{ grid-template-columns:repeat(2,1fr); } .cycle-grid .phase:nth-child(2n){ border-right:none; } }

/* ---------- pull line ---------- */
.pull{
  font-family:var(--font-display); font-style:italic; font-size:clamp(22px,2.6vw,32px); color:var(--navy);
  max-width:20ch; line-height:1.3; margin:0;
}
.navy-bg .pull{ color:#fff; }

/* ---------- concept strip (replaces a bullet list) ---------- */
.concept-strip{ font-family:var(--font-mono); font-size:12.5px; letter-spacing:.02em; color:var(--ink-faint); line-height:2.1; margin-top:28px; }
.navy-bg .concept-strip{ color:var(--blue-tint); }

/* ---------- environments index (replaces card grid) ---------- */
.index-list{ border-top:1px solid var(--line); margin-top:8px; }
.index-row{ display:grid; grid-template-columns:280px 1fr; gap:40px; padding:26px 0; border-bottom:1px solid var(--line); }
.index-row .name{ font-family:var(--font-display); font-size:19px; color:var(--navy); }
.index-row .desc{ font-size:14.5px; color:var(--ink-soft); max-width:62ch; }
@media (max-width:720px){ .index-row{ grid-template-columns:1fr; gap:6px; padding:20px 0; } }

/* ---------- continuous sub-section (safety -> how we operate) ---------- */
.seg-block{ margin-top:56px; padding-top:40px; border-top:1px solid var(--line); scroll-margin-top:104px; }
.seg-block h3{ font-size:clamp(21px,2.2vw,27px); max-width:28ch; margin-bottom:20px; }
@media (max-width:860px){ .seg-block{ margin-top:40px; padding-top:28px; } }

/* ---------- closing ---------- */
.closing{ padding:96px 0 88px; text-align:left; scroll-margin-top:104px; }
@media (max-width:860px){ .closing{ padding:64px 0; } }
.closing-inner{ max-width:640px; }
.closing h2{ font-size:clamp(26px,3.4vw,40px); margin-bottom:24px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--navy-deep); color:var(--blue-tint); padding:64px 0 30px; }
.site-footer a{ color:var(--blue-tint); }
.site-footer a:hover{ color:#fff; }
.footer-top{ display:flex; justify-content:space-between; align-items:flex-start; flex-wrap:wrap; gap:32px; padding-bottom:40px; border-bottom:1px solid var(--line-on-navy); }
.footer-logo img{ height:20px; margin-bottom:16px; }
.footer-tag{ max-width:32ch; font-size:13.5px; color:var(--blue-tint); }
.footer-nav{ display:flex; gap:48px; flex-wrap:wrap; }
.footer-nav div h5{ font-family:var(--font-mono); font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; color:rgba(255,255,255,.55); margin:0 0 14px; font-weight:400; }
.footer-nav ul{ list-style:none; margin:0; padding:0; display:grid; gap:9px; font-size:13.5px; }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; padding-top:22px; font-size:12px; color:rgba(255,255,255,.45); }

/* ---------- mobile drawer ---------- */
.nav-drawer{ position:fixed; inset:0 0 0 auto; width:min(320px,86vw); height:100vh; background:var(--paper); z-index:200; padding:24px; transform:translateX(100%); visibility:hidden; transition:transform .22s ease, visibility .22s ease; overflow-y:auto; }
.nav-drawer.open{ transform:translateX(0); visibility:visible; }
.nav-drawer-backdrop{ position:fixed; inset:0; background:rgba(15,30,48,.4); z-index:199; display:none; }
.nav-drawer-backdrop.open{ display:block; }
.nav-drawer ul{ list-style:none; margin:32px 0; padding:0; display:grid; gap:2px; font-size:16px; }
.nav-drawer ul a{ display:block; padding:13px 2px; color:var(--navy); border-bottom:1px solid var(--line); }
.nav-drawer-close{ background:none; border:none; font-size:22px; margin-left:auto; display:block; cursor:pointer; }

@media print{ .site-header,.site-footer{ display:none; } }

/* ---------- contact form ---------- */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:30px 32px; margin-top:12px; }
.form-field{ display:flex; flex-direction:column; gap:9px; }
.form-field.full{ grid-column:1 / -1; }
.form-field label{ font-family:var(--font-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint); }
.form-field input, .form-field select, .form-field textarea{
  font-family:var(--font-sans); font-size:15px; color:var(--ink); background:transparent;
  border:none; border-bottom:1px solid var(--line); padding:10px 2px; font-weight:300; border-radius:0;
}
.form-field select{ appearance:none; -webkit-appearance:none; background-image:url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMiIgaGVpZ2h0PSI4IiB2aWV3Qm94PSIwIDAgMTIgOCI+PHBhdGggZD0iTTEgMWw1IDUgNS01IiBzdHJva2U9IiM4NTkzYTAiIHN0cm9rZS13aWR0aD0iMS4zIiBmaWxsPSJub25lIi8+PC9zdmc+"); background-repeat:no-repeat; background-position:right 2px center; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus{ outline:none; border-bottom-color:var(--navy); }
.form-field textarea{ resize:vertical; min-height:130px; font-family:var(--font-sans); }
.form-hint{ font-size:12.5px; color:var(--ink-faint); }
.form-consent{ display:flex; align-items:flex-start; gap:10px; font-size:13.5px; color:var(--ink-soft); margin-top:26px; max-width:64ch; }
.form-consent + .form-consent{ margin-top:14px; }
.form-consent input{ margin-top:4px; flex:none; }
.form-consent a{ color:var(--navy); text-decoration:underline; text-underline-offset:2px; }
.form-actions{ margin-top:32px; display:flex; align-items:center; gap:18px; flex-wrap:wrap; }
.form-status{ font-family:var(--font-mono); font-size:11px; letter-spacing:.06em; color:var(--ink-faint); }
.outline-btn[disabled]{ opacity:.42; cursor:not-allowed; }
.outline-btn[disabled]:hover{ background:none; color:var(--navy); }
/* honeypot: kept in the DOM and in the tab order's reach for assistive
   tech that ignores tabindex, but visually and spatially removed so a
   sighted human never sees or fills it -- only a bot filling fields
   blindly will. */
.hp-field{ position:absolute; left:-9999px; top:-9999px; width:1px; height:1px; overflow:hidden; }
.form-result{ margin-top:30px; padding:22px 26px; border-radius:2px; max-width:62ch; }
.form-result[hidden]{ display:none; }
.form-result p{ margin:0 0 12px; font-family:var(--font-sans); font-size:14.5px; line-height:1.6; }
.form-result p:last-child{ margin-bottom:0; }
.form-result p.form-result-title{ font-size:18px; font-weight:500; color:var(--navy); }
.form-result.success{ background:rgba(28,51,80,.055); border:1px solid rgba(28,51,80,.16); }
.form-result.error{ background:rgba(163,42,42,.06); border:1px solid rgba(163,42,42,.24); color:#7a2323; }
@media (max-width:720px){ .form-grid{ grid-template-columns:1fr; } }

/* ---------- 404 ---------- */
.notfound{ min-height:56vh; display:flex; align-items:center; padding:80px 0; }
.notfound h1{ font-size:clamp(30px,4vw,46px); margin:18px 0 22px; }
.notfound .links{ display:flex; gap:28px; flex-wrap:wrap; margin-top:8px; }