:root {
  --navy: #071421;
  --navy-2: #0b1d2c;
  --navy-3: #122b3e;
  --orange: #f36b2b;
  --orange-light: #ff8d52;
  --ink: #102332;
  --muted: #5d6a74;
  --line: #dbe2e7;
  --paper: #f4f6f7;
  --white: #fff;
  --heading: "Barlow Condensed", sans-serif;
  --body: "Manrope", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: var(--body); font-size: 16px; line-height: 1.65; }
body.menu-open { overflow: hidden; }
body.lightbox-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.section { padding: 112px 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--heading); line-height: .96; text-transform: uppercase; }
h1 { max-width: 760px; margin-bottom: 28px; color: var(--white); font-size: clamp(4.6rem, 7.2vw, 7.5rem); letter-spacing: -.035em; }
h1 em { display: block; color: var(--orange); font-style: normal; }
h2 { margin-bottom: 24px; font-size: clamp(3.2rem, 5vw, 5rem); letter-spacing: -.025em; }
h3 { margin-bottom: 16px; font-size: 1.7rem; letter-spacing: -.01em; }

.eyebrow { display: flex; align-items: center; gap: 11px; margin-bottom: 22px; color: #aebdca; font-size: .71rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.eyebrow span { width: 28px; height: 2px; background: var(--orange); }
.eyebrow.dark { color: #697984; }
.button { min-height: 54px; display: inline-flex; align-items: center; justify-content: center; gap: 30px; padding: 0 25px; border: 1px solid transparent; font-size: .76rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; transition: .25s ease; cursor: pointer; }
.button span { font-size: 1.1rem; }
.button-primary { color: var(--white); background: var(--orange); }
.button-primary:hover { background: var(--orange-light); transform: translateY(-2px); }
.button-ghost { color: var(--white); border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.03); }
.button-ghost:hover { border-color: var(--white); background: rgba(255,255,255,.08); }

.site-header { position: absolute; z-index: 20; top: 0; left: 0; width: 100%; border-bottom: 1px solid rgba(255,255,255,.12); }
.nav-wrap { height: 88px; display: flex; align-items: center; justify-content: space-between; }
.brand img { width: 178px; height: 76px; object-fit: contain; filter: brightness(0) invert(1); }
.main-nav { height: 100%; display: flex; align-items: center; gap: 34px; }
.main-nav a { position: relative; color: #d9e2e9; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.main-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; bottom: -8px; width: 0; height: 2px; background: var(--orange); transition: width .25s; }
.main-nav > a:hover::after { width: 100%; }
.main-nav .nav-cta { height: 42px; display: flex; align-items: center; padding: 0 18px; border: 1px solid rgba(255,255,255,.35); color: var(--white); }
.main-nav .nav-cta:hover { border-color: var(--orange); background: var(--orange); }
.menu-toggle { display: none; border: 0; background: none; }

.hero { position: relative; min-height: 820px; overflow: hidden; color: var(--white); background: var(--navy); }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 78% 42%, rgba(28,67,91,.62), transparent 33%), linear-gradient(115deg, rgba(4,14,24,.97) 0%, rgba(7,20,33,.95) 52%, rgba(10,33,49,.85) 100%); }
.hero-grid { position: absolute; inset: 0; opacity: .15; background-image: linear-gradient(rgba(255,255,255,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.1) 1px, transparent 1px); background-size: 68px 68px; mask-image: linear-gradient(to right, transparent 8%, black 60%, transparent); }
.hero-glow { position: absolute; top: 140px; right: -150px; width: 700px; height: 700px; border: 1px solid rgba(243,107,43,.15); border-radius: 50%; box-shadow: inset 0 0 100px rgba(243,107,43,.04), 0 0 120px rgba(24,99,135,.12); }
.hero-inner { position: relative; z-index: 2; min-height: 760px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 45px; padding-top: 95px; }
.hero-copy { position: relative; z-index: 3; padding-top: 38px; }
.hero-lead { max-width: 650px; margin-bottom: 35px; color: #b7c6d1; font-size: 1.06rem; line-height: 1.8; }
.hero-actions { display: flex; gap: 12px; margin-bottom: 43px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 23px; color: #8093a1; font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.hero-tags span { position: relative; padding-left: 14px; }
.hero-tags span::before { content: ""; position: absolute; top: 8px; left: 0; width: 4px; height: 4px; border-radius: 50%; background: var(--orange); }
.hero-visual { position: relative; min-height: 570px; display: flex; align-items: center; justify-content: center; }
.orbit { position: absolute; border: 1px solid rgba(115,158,186,.18); border-radius: 50%; }
.orbit-one { width: 600px; height: 600px; }
.orbit-two { width: 455px; height: 455px; border-style: dashed; animation: rotate 60s linear infinite; }
@keyframes rotate { to { transform: rotate(360deg); } }
.system-card { position: relative; z-index: 2; width: 510px; border: 1px solid rgba(143,180,203,.25); background: rgba(7,22,34,.82); box-shadow: 0 35px 90px rgba(0,0,0,.38); backdrop-filter: blur(12px); }
.system-topline { height: 48px; display: flex; align-items: center; justify-content: space-between; padding: 0 18px; border-bottom: 1px solid rgba(255,255,255,.1); color: #8098a8; font-size: .63rem; letter-spacing: .1em; text-transform: uppercase; }
.status { display: flex; align-items: center; gap: 8px; color: #8bd5ae; }
.status i { width: 7px; height: 7px; border-radius: 50%; background: #4cca8a; box-shadow: 0 0 10px #4cca8a; }
.pipeline-diagram { width: 100%; display: block; }
.pipeline-diagram text { fill: #8aa0af; font: 600 10px var(--body); letter-spacing: .08em; }
.terrain { fill: #0d2232; }
.pulse-lines path { fill: none; stroke: #f47a32; stroke-width: 1.5; stroke-dasharray: 4 5; opacity: .45; }
.anode rect, .anode circle { fill: #f47a32; filter: url(#orangeGlow); }
.rectifier rect, .test-post rect { fill: #132d40; stroke: #66859a; }
.signal-dot { fill: #ff8d52; animation: signal 2s ease-out infinite; }
.signal-dot.delayed { animation-delay: 1s; }
@keyframes signal { 0% { r: 4; opacity: 1; } 100% { r: 17; opacity: 0; } }
.system-metrics { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.1); }
.system-metrics div { padding: 16px 17px 17px; border-right: 1px solid rgba(255,255,255,.1); }
.system-metrics div:last-child { border: 0; }
.system-metrics small { display: block; margin-bottom: 4px; color: #718999; font-size: .56rem; letter-spacing: .06em; text-transform: uppercase; }
.system-metrics strong { color: #e3edf3; font-family: var(--heading); font-size: 1.45rem; }
.system-metrics strong span { color: #718999; font-size: .72rem; }
.system-metrics .good { color: #4cca8a; font-size: 1.1rem; }
.float-badge { position: absolute; z-index: 4; min-width: 132px; display: flex; align-items: center; gap: 12px; padding: 13px 16px; border: 1px solid rgba(255,255,255,.15); background: #102a3d; box-shadow: 0 15px 35px rgba(0,0,0,.25); }
.float-badge b { color: var(--orange); font-family: var(--heading); font-size: 1.4rem; }
.float-badge span { color: #a9bac5; font-size: .57rem; font-weight: 700; line-height: 1.4; letter-spacing: .07em; text-transform: uppercase; }
.badge-one { top: 75px; left: -5px; }
.badge-two { right: -14px; bottom: 65px; }
.hero-strip { position: relative; z-index: 3; height: 60px; display: flex; align-items: center; border-top: 1px solid rgba(255,255,255,.11); background: rgba(4,14,23,.88); }
.strip-inner { display: flex; align-items: center; justify-content: space-between; color: #6f8796; font-size: .61rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.strip-inner i { width: 3px; height: 3px; border-radius: 50%; background: var(--orange); }

.intro { background: var(--white); }
.intro-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 120px; }
.intro .section-heading h2 { max-width: 660px; margin-bottom: 0; }
.intro-copy { padding-top: 43px; color: var(--muted); }
.intro-copy p:first-child { color: var(--ink); font-size: 1.15rem; font-weight: 600; }
.text-link { display: inline-flex; align-items: center; gap: 24px; margin-top: 12px; padding-bottom: 5px; border-bottom: 2px solid var(--orange); color: var(--ink); font-size: .74rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.services { background: var(--paper); }
.section-top { display: flex; align-items: flex-end; justify-content: space-between; gap: 60px; margin-bottom: 58px; }
.section-top h2 { margin-bottom: 0; }
.section-top > p { max-width: 415px; margin: 0 0 3px; color: var(--muted); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-card { position: relative; min-height: 430px; padding: 38px 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); transition: .3s ease; overflow: hidden; }
.service-card::after { content: ""; position: absolute; right: 0; bottom: 0; left: 0; height: 4px; background: var(--orange); transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.service-card:hover { z-index: 2; transform: translateY(-7px); box-shadow: 0 25px 50px rgba(18,43,62,.11); }
.service-card:hover::after { transform: scaleX(1); }
.service-number { position: absolute; top: 28px; right: 30px; color: #a3afb7; font-family: var(--heading); font-size: .9rem; }
.service-icon { width: 55px; height: 55px; display: grid; place-items: center; margin-bottom: 56px; border: 1px solid #d3dde3; color: var(--orange); }
.service-icon svg { width: 31px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.service-card p { color: var(--muted); font-size: .88rem; }
.service-card ul { margin: 20px 0 0; padding: 18px 0 0; border-top: 1px solid #edf0f2; list-style: none; }
.service-card li { position: relative; margin: 7px 0; padding-left: 16px; color: #53636d; font-size: .72rem; }
.service-card li::before { content: ""; position: absolute; top: 9px; left: 0; width: 5px; height: 1px; background: var(--orange); }

.assets { min-height: 720px; display: grid; grid-template-columns: 1fr 1fr; padding: 0; background: var(--navy); color: var(--white); }
.assets-image { min-height: 720px; background: linear-gradient(90deg, transparent 70%, var(--navy)), linear-gradient(0deg, rgba(4,15,24,.2), rgba(4,15,24,.2)), url("assets/pipeline-system.jpg") center/cover no-repeat; }
.assets-content { display: flex; align-items: center; padding: 90px max(48px, calc((100vw - 1180px) / 2)) 90px 75px; }
.assets-inner { width: 100%; max-width: 590px; }
.assets-inner > p:not(.eyebrow) { color: #9fb0bc; }
.asset-list { margin-top: 40px; border-top: 1px solid rgba(255,255,255,.13); }
.asset-item { width: 100%; min-height: 62px; display: grid; grid-template-columns: 42px 1fr 30px; align-items: center; padding: 0; border: 0; border-bottom: 1px solid rgba(255,255,255,.13); color: #a6b5bf; background: none; text-align: left; cursor: pointer; transition: .25s; }
.asset-item span { color: #617583; font-family: var(--heading); font-size: .8rem; }
.asset-item b { font-family: var(--heading); font-size: 1.25rem; font-weight: 600; text-transform: uppercase; }
.asset-item i { color: var(--orange); font-style: normal; opacity: 0; transform: translateX(-10px); transition: .25s; }
.asset-item:hover, .asset-item.active { color: var(--white); }
.asset-item:hover i, .asset-item.active i { opacity: 1; transform: translateX(0); }

.gallery { background: var(--paper); }
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 230px; gap: 14px; }
.gallery-card { position: relative; min-width: 0; padding: 0; border: 0; overflow: hidden; color: var(--white); background: var(--navy); text-align: left; cursor: zoom-in; }
.gallery-card-wide { grid-column: span 2; }
.gallery-card-tall { grid-row: span 2; }
.gallery-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(4,14,23,.88), transparent 62%); transition: background .35s ease; }
.gallery-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease, opacity .35s ease; }
.gallery-card span { position: absolute; z-index: 2; right: 22px; bottom: 18px; left: 22px; display: flex; align-items: flex-end; justify-content: space-between; gap: 15px; }
.gallery-card b { font-family: var(--heading); font-size: 1.25rem; font-weight: 600; line-height: 1; letter-spacing: .01em; text-transform: uppercase; }
.gallery-card small { color: #c6d0d7; font-size: .56rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; white-space: nowrap; }
.gallery-card:hover img, .gallery-card:focus-visible img { transform: scale(1.045); opacity: .88; }
.gallery-card:hover::after, .gallery-card:focus-visible::after { background: linear-gradient(0deg, rgba(4,14,23,.95), rgba(243,107,43,.08)); }
.gallery-card:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
.gallery-source { margin: 20px 0 0; color: #7c8992; font-size: .66rem; letter-spacing: .05em; text-transform: uppercase; }

.lightbox { position: fixed; z-index: 100; inset: 0; display: grid; grid-template-columns: 90px minmax(0, 1fr) 90px; align-items: center; padding: 54px 30px 30px; color: var(--white); background: rgba(3,10,16,.96); opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease; }
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox figure { max-width: 1180px; max-height: calc(100vh - 100px); margin: 0 auto; }
.lightbox img { width: auto; max-width: 100%; max-height: calc(100vh - 145px); margin: 0 auto; object-fit: contain; box-shadow: 0 24px 75px rgba(0,0,0,.55); }
.lightbox figcaption { margin-top: 14px; color: #c9d3da; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-align: center; text-transform: uppercase; }
.lightbox button { border: 0; color: var(--white); background: transparent; cursor: pointer; }
.lightbox-close { position: absolute; top: 14px; right: 22px; width: 48px; height: 48px; font-size: 2.2rem; line-height: 1; }
.lightbox-control { width: 56px; height: 56px; margin: auto; border: 1px solid rgba(255,255,255,.25) !important; font-size: 1.5rem; transition: border-color .2s, background .2s; }
.lightbox-control:hover, .lightbox-control:focus-visible { border-color: var(--orange) !important; background: var(--orange); outline: 0; }

.approach { background: var(--white); }
.process { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 32px; padding-top: 24px; }
.process-line { position: absolute; top: 47px; right: 0; left: 0; height: 1px; background: var(--line); }
.process-step { position: relative; padding-top: 74px; }
.process-step > span { position: absolute; top: 0; left: 0; z-index: 2; width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--orange); background: var(--white); font-family: var(--heading); font-size: .9rem; }
.process-step h3 { margin-bottom: 12px; font-size: 1.45rem; }
.process-step p { color: var(--muted); font-size: .78rem; }

.standards { position: relative; overflow: hidden; color: var(--white); background: var(--navy-2); }
.standards::before { content: ""; position: absolute; top: -280px; left: -220px; width: 650px; height: 650px; border: 1px solid rgba(243,107,43,.12); border-radius: 50%; }
.standards-grid { position: relative; display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: center; }
.standards-copy > p:not(.eyebrow) { max-width: 510px; margin-bottom: 33px; color: #9caeba; }
.standard-list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(255,255,255,.13); border-left: 1px solid rgba(255,255,255,.13); }
.standard-list div { min-height: 125px; display: flex; flex-direction: column; justify-content: center; padding: 22px 28px; border-right: 1px solid rgba(255,255,255,.13); border-bottom: 1px solid rgba(255,255,255,.13); }
.standard-list strong { color: var(--orange); font-family: var(--heading); font-size: 1.5rem; letter-spacing: .03em; }
.standard-list span { color: #8fa1ad; font-size: .68rem; letter-spacing: .05em; text-transform: uppercase; }

.contact { position: relative; overflow: hidden; color: var(--white); background: #102a3c; }
.contact-pattern { position: absolute; inset: 0; opacity: .11; background-image: linear-gradient(120deg, transparent 0 48%, rgba(255,255,255,.13) 48% 49%, transparent 49% 100%); background-size: 70px 122px; }
.contact-grid { position: relative; display: grid; grid-template-columns: .85fr 1.15fr; gap: 110px; }
.contact-copy > p:not(.eyebrow) { color: #a6b7c2; }
.contact-details { margin-top: 42px; }
.contact-details a, .contact-details div { display: block; padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.13); }
.contact-details small { display: block; color: #77909f; font-size: .59rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.contact-details strong { font-size: .88rem; }
.contact-form { padding: 42px; color: var(--ink); background: var(--white); box-shadow: 0 28px 65px rgba(0,0,0,.2); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.contact-form label { display: block; margin-bottom: 20px; color: #65727b; font-size: .65rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; display: block; margin-top: 7px; padding: 12px 0; border: 0; border-bottom: 1px solid #ccd6dc; border-radius: 0; outline: none; color: var(--ink); background: transparent; font-size: .87rem; text-transform: none; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--orange); }
.contact-form textarea { resize: vertical; }
.contact-form .button { border: 0; }

.site-footer { color: #8395a1; background: #06111c; font-size: .7rem; }
.footer-main { min-height: 140px; display: flex; align-items: center; gap: 42px; }
.footer-brand img { width: 150px; height: 70px; }
.footer-main p { margin: 0 auto 0 0; }
.footer-links { display: flex; gap: 25px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.footer-links a:hover { color: var(--orange); }
.footer-bottom { min-height: 60px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.1); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1050px) {
  .main-nav { gap: 22px; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 150px; padding-bottom: 80px; }
  .hero-visual { display: none; }
  .hero { min-height: auto; }
  .hero-inner { min-height: 760px; }
  .intro-grid, .standards-grid, .contact-grid { gap: 60px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .assets-content { padding-left: 50px; }
  .process { grid-template-columns: repeat(3, 1fr); row-gap: 45px; }
  .process-line { display: none; }
}

@media (max-width: 780px) {
  .container { width: min(100% - 32px, 1180px); }
  .section { padding: 78px 0; }
  h1 { font-size: clamp(3.7rem, 16vw, 5.5rem); }
  h2 { font-size: clamp(2.8rem, 12vw, 4rem); }
  .nav-wrap { height: 76px; }
  .brand img { width: 140px; height: 64px; }
  .menu-toggle { z-index: 30; width: 42px; height: 42px; display: grid; align-content: center; gap: 5px; padding: 10px; cursor: pointer; }
  .menu-toggle span:not(.sr-only) { width: 100%; height: 2px; display: block; background: var(--white); transition: .25s; }
  .menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
  .menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 0; z-index: 20; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 25px; padding: 80px 34px; background: var(--navy); transform: translateX(100%); transition: .3s ease; }
  .menu-open .main-nav { transform: none; }
  .main-nav a { font-family: var(--heading); font-size: 2rem; }
  .main-nav .nav-cta { height: auto; padding: 0; border: 0; color: var(--orange); }
  .hero-inner { min-height: 750px; padding-top: 120px; }
  .hero-lead { font-size: .95rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .button { width: 100%; }
  .hero-tags { gap: 13px; }
  .hero-strip { display: none; }
  .intro-grid, .standards-grid, .contact-grid { grid-template-columns: 1fr; gap: 42px; }
  .intro-copy { padding-top: 0; }
  .section-top { display: block; }
  .section-top > p { margin-top: 22px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .assets { grid-template-columns: 1fr; }
  .assets-image { min-height: 390px; background-image: linear-gradient(0deg, var(--navy), transparent 55%), url("assets/pipeline-system.jpg"); }
  .assets-content { padding: 45px 24px 80px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 220px; }
  .gallery-card-wide { grid-column: span 2; }
  .gallery-card-tall { grid-row: span 2; }
  .lightbox { grid-template-columns: 54px minmax(0, 1fr) 54px; padding: 60px 8px 24px; }
  .lightbox-control { width: 44px; height: 44px; }
  .process { grid-template-columns: 1fr; gap: 10px; }
  .process-step { min-height: 120px; padding: 5px 0 20px 75px; border-bottom: 1px solid var(--line); }
  .process-step > span { top: 0; }
  .standard-list { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 22px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer-main { flex-direction: column; align-items: flex-start; gap: 15px; padding: 34px 0; }
  .footer-main p { margin: 0; }
  .footer-links { flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 260px; }
  .gallery-card-wide { grid-column: span 1; }
  .gallery-card-tall { grid-row: span 1; }
  .gallery-card span { right: 16px; bottom: 15px; left: 16px; }
  .lightbox { grid-template-columns: 42px minmax(0, 1fr) 42px; }
  .lightbox-control { width: 38px; height: 38px; }
}

.fabrication-color-cycle .color-cycle-letter {
  display: inline-block;
  color: #fff;
  animation: fabricationLetterColor 20s ease-in-out infinite;
  animation-delay: calc(var(--letter-index) * .11s);
}
.fabrication-color-cycle .color-cycle-space { display: inline-block; width: .24em; }
@keyframes fabricationLetterColor {
  0%, 5% { color: #fff; }
  20%, 50% { color: #f36b2b; }
  65%, 100% { color: #fff; }
}
@media (prefers-reduced-motion: reduce) {
  .fabrication-color-cycle .color-cycle-letter { animation: none; }
}

/* Light brand areas */
.site-header {
  background: var(--white);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 28px rgba(7, 20, 33, .08);
}

.site-header .brand img,
.site-footer .brand img {
  filter: none;
}

.site-header .main-nav a {
  color: var(--ink);
}

.site-header .main-nav a:hover {
  color: var(--orange);
}

.site-header .main-nav .nav-cta {
  border-color: #b9c6ce;
  color: var(--ink);
  background: transparent;
}

.site-header .main-nav .nav-cta:hover {
  border-color: var(--orange);
  color: var(--white);
  background: var(--orange);
}

.site-footer {
  color: var(--muted);
  background: var(--white);
}

.site-footer .footer-main p {
  color: var(--ink);
}

.site-footer .footer-links {
  color: var(--ink);
}

.site-footer .footer-bottom {
  border-top-color: var(--line);
}

.site-footer .footer-bottom a {
  color: var(--ink);
}

@media (max-width: 780px) {
  .site-header .menu-toggle span:not(.sr-only) {
    background: var(--ink);
  }

  .menu-open .site-header .menu-toggle span:not(.sr-only) {
    background: var(--white);
  }

  .site-header .main-nav a {
    color: var(--white);
  }

  .site-header .main-nav .nav-cta {
    color: var(--orange);
  }
}

/* Spring support service page */
.spring-hero .hero-inner {
  padding-top: 120px;
}

.spring-hero-card {
  position: relative;
  z-index: 2;
  width: min(510px, 100%);
  overflow: hidden;
  border: 1px solid rgba(143,180,203,.25);
  background: rgba(7,22,34,.88);
  box-shadow: 0 35px 90px rgba(0,0,0,.4);
  backdrop-filter: blur(12px);
}

.hero-product {
  position: relative;
  height: 470px;
  overflow: hidden;
  background: #082a40;
}

.hero-product::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5,20,31,.4), transparent 30% 70%, rgba(5,20,31,.35));
  pointer-events: none;
}

.hero-product img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 39%;
}

.measure-line {
  position: absolute;
  z-index: 2;
  right: 22px;
  width: 115px;
  border-top: 1px solid var(--orange);
  color: #dbe7ed;
  font-size: .56rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.measure-line::before {
  content: "";
  position: absolute;
  top: -4px;
  left: -4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 12px var(--orange);
}

.measure-line span {
  display: block;
  padding-top: 7px;
  text-align: right;
}

.measure-one { top: 155px; }
.measure-two { top: 265px; }

.spring-hero-card .system-metrics strong {
  font-size: .95rem;
}

.assets-image {
  background-image: linear-gradient(90deg, transparent 70%, var(--navy)), linear-gradient(0deg, rgba(4,15,24,.14), rgba(4,15,24,.14)), url("assets/11_LISEGA_Variable_Spring_Hanger_Cutaway_Front_View.jpg");
  background-position: center;
  background-size: cover;
}

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: -25px 0 30px;
}

.filter-button {
  min-height: 40px;
  padding: 0 17px;
  border: 1px solid #ccd6dc;
  color: #53636d;
  background: var(--white);
  font: 700 .64rem var(--body);
  letter-spacing: .07em;
  text-transform: uppercase;
  cursor: pointer;
  transition: .2s ease;
}

.filter-button:hover,
.filter-button.active {
  border-color: var(--orange);
  color: var(--white);
  background: var(--orange);
}

.gallery-card[hidden] {
  display: none;
}

.spring-gallery .gallery-card img {
  object-fit: contain;
  padding: 12px;
  background: #eef2f4;
}

.spring-gallery .gallery-card:nth-child(1) img {
  padding: 0;
  object-fit: cover;
}

.spring-gallery .gallery-card::after {
  background: linear-gradient(0deg, rgba(4,14,23,.94), transparent 58%);
}

.gallery-source {
  line-height: 1.7;
}

@media (max-width: 1050px) {
  .spring-hero .hero-inner {
    padding-top: 150px;
  }
}

@media (max-width: 780px) {
  .spring-hero .hero-inner {
    padding-top: 120px;
  }

  .gallery-filters {
    margin-top: -10px;
  }

  .filter-button {
    flex: 1 1 calc(50% - 9px);
  }

  .assets-image {
    background-image: linear-gradient(0deg, var(--navy), transparent 55%), url("assets/11_LISEGA_Variable_Spring_Hanger_Cutaway_Front_View.jpg");
  }
}

@media (max-width: 480px) {
  .filter-button {
    flex-basis: 100%;
  }
}