:root {
  --navy: #071a2b;
  --navy-2: #0c263b;
  --ink: #101c27;
  --muted: #687682;
  --paper: #f3f5f3;
  --line: #d7dddc;
  --aqua: #6de1d0;
  --white: #fff;
  --sans: 'Manrope', Arial, sans-serif;
  --serif: Georgia, 'Times New Roman', serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
section[id] { scroll-margin-top: 104px; }
.container { width: min(1160px, calc(100% - 72px)); margin: 0 auto; }

.site-header {
  position: fixed;
  z-index: 10;
  inset: 0 0 auto;
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.16);
  transition: background .3s ease;
}
.site-header.is-scrolled { background: rgba(7,26,43,.96); backdrop-filter: blur(12px); }
.nav-wrap { height: 82px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 800; letter-spacing: .18em; }
.brand-mark { width: 31px; height: 31px; color: var(--white); }
.site-nav { display: flex; align-items: center; gap: 32px; font-size: 16px; font-weight: 650; }
.site-nav a { opacity: .88; transition: opacity .2s ease; }
.site-nav a:hover { opacity: 1; }
.site-nav .nav-cta { opacity: 1; border: 1px solid rgba(255,255,255,.45); padding: 11px 15px; border-radius: 2px; }
.nav-cta span, .button span, .text-link span { color: var(--aqua); margin-left: 10px; font-size: 18px; }
.menu-toggle { display: none; background: none; border: 0; color: var(--white); }

.hero { min-height: 720px; height: 93vh; max-height: 900px; background: var(--navy); position: relative; overflow: hidden; color: var(--white); }
.hero-media { position: absolute; inset: 0; background: url('assets/hero-water-facility.png') center / cover; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(5,19,31,.94),rgba(5,19,31,.68) 42%,rgba(5,19,31,.12)),linear-gradient(0deg,rgba(5,19,31,.7),transparent 48%); }
.hero-content { position: relative; z-index: 1; padding-top: clamp(180px,25vh,250px); }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 25px; color: #64747e; font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; line-height: 1.4; }
.eyebrow.light { color: #c2cdd2; }
.eyebrow-line { height: 1px; width: 31px; background: var(--aqua); display: inline-block; flex: 0 0 auto; }
.hero h1 { max-width: 900px; margin: 0; font-size: clamp(54px,6.4vw,88px); font-weight: 650; letter-spacing: -.065em; line-height: 1.02; }
.hero h1 em { font-family: var(--serif); font-weight: 400; letter-spacing: -.06em; }
.hero-copy { max-width: 560px; margin: 28px 0 34px; color: #d1dce0; font-size: 20px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 15px 20px; border: 1px solid transparent; font: 750 14px/1.35 var(--sans); text-transform: uppercase; letter-spacing: .06em; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--aqua); color: var(--navy); }
.button-primary span { color: var(--navy); }
.button-outline { border-color: rgba(255,255,255,.55); color: var(--white); }
.button-outline:hover { background: var(--white); color: var(--navy); }
.text-link { display: inline-flex; align-items: center; font-size: 16px; font-weight: 750; border-bottom: 1px solid #b4c1c2; padding-bottom: 4px; }
.text-link.light { color: var(--white); border-color: rgba(255,255,255,.42); }
.hero-foot { position: absolute; z-index: 1; bottom: 25px; left: 0; right: 0; display: flex; justify-content: space-between; color: #c4cfd4; font-size: 14px; font-weight: 650; text-transform: uppercase; letter-spacing: .08em; }

.section-pad { padding: 116px 0; }
.split-heading { display: grid; grid-template-columns: 25% 1fr; gap: 8%; }
.split-heading h2, .contact h2 { max-width: 760px; margin: 0 0 25px; font-size: clamp(42px,4.5vw,66px); font-weight: 650; letter-spacing: -.06em; line-height: 1.08; }
.lead { max-width: 640px; color: #5f6e78; font-size: 20px; line-height: 1.7; }
.benefit-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-top: 82px; }
.benefit-card { border-top: 1px solid var(--line); padding: 22px 16px 0 0; }
.benefit-card h3, .cap-card h3 { font-size: 21px; line-height: 1.3; margin: 12px 0; letter-spacing: -.025em; }
.benefit-card p, .cap-card p { color: #667580; font-size: 18px; line-height: 1.7; max-width: 420px; margin: 0; }

.dark-section { background: var(--navy); color: var(--white); }
.section-topline { display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid rgba(255,255,255,.18); padding-bottom: 20px; }
.section-topline:not(.dark-section .section-topline) { border-color: var(--line); }
.section-topline .eyebrow { margin: 0; }
.section-note { color: #aebdc4; font-size: 15px; font-weight: 650; line-height: 1.5; text-align: right; }
.section-topline:not(.dark-section .section-topline) .section-note { color: #62717a; }
.steps-grid { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 58px; }
.step { padding: 0 30px; border-right: 1px solid rgba(255,255,255,.2); min-height: 180px; }
.step:first-child { padding-left: 0; }
.step:last-child { border: 0; padding-right: 0; }
.step h3 { font-size: 21px; line-height: 1.35; margin: 0 0 14px; font-weight: 700; }
.step p { max-width: 340px; margin: 0; color: #c0ccd1; font-size: 18px; line-height: 1.7; }
.process-callout { display: flex; align-items: center; gap: 32px; border-top: 1px solid rgba(255,255,255,.18); margin-top: 62px; padding-top: 25px; }
.process-callout p { margin: 0; color: #c0ccd1; font-size: 18px; line-height: 1.65; }
.process-callout strong { color: var(--white); }
.signal-art { display: flex; align-items: end; gap: 4px; width: 75px; height: 36px; flex: 0 0 auto; }
.signal-art span { display: block; width: 9px; background: var(--aqua); opacity: .85; }
.signal-art span:nth-child(1) { height: 16px; }
.signal-art span:nth-child(2) { height: 25px; }
.signal-art span:nth-child(3) { height: 34px; }
.signal-art span:nth-child(4) { height: 22px; }
.signal-art span:nth-child(5) { height: 29px; }

.industry-layout { display: grid; grid-template-columns: 1fr .9fr; gap: 10%; align-items: center; margin-top: 60px; }
.industry-copy h2 { max-width: 560px; margin: 0 0 22px; font-size: clamp(42px,4.2vw,60px); font-weight: 650; letter-spacing: -.06em; line-height: 1.08; }
.industry-copy > p { max-width: 500px; color: #5f6e78; font-size: 19px; line-height: 1.7; }
.industry-list { list-style: none; margin: 38px 0 0; padding: 0; border-top: 1px solid var(--line); }
.industry-list li { border-bottom: 1px solid var(--line); padding: 15px 0; font-size: 18px; font-weight: 700; line-height: 1.4; }
.image-frame { position: relative; overflow: hidden; background: #dce5e4; }
.image-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.image-frame:hover img { transform: scale(1.02); }
.image-frame.tall { height: auto; aspect-ratio: 4/5; }
.image-tag { position: absolute; bottom: 18px; left: 18px; background: rgba(7,26,43,.88); color: var(--white); padding: 9px 12px; font-size: 14px; font-weight: 750; letter-spacing: .07em; text-transform: uppercase; }

.capabilities { padding-top: 40px; }
.cap-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1px; background: var(--line); margin-top: 56px; border: 1px solid var(--line); }
.cap-card { min-height: 230px; background: var(--paper); padding: 30px 32px; }
.cap-card-featured { grid-column: 1/-1; display: grid; grid-template-columns: 1.05fr .95fr; min-height: 340px; padding: 0; overflow: hidden; background: var(--navy); color: var(--white); }
.cap-feature-image { width: 100%; height: 100%; min-height: 340px; object-fit: cover; object-position: center; }
.cap-feature-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(30px,5vw,64px); }
.cap-card-featured h3 { margin: 0 0 18px; font-size: clamp(32px,3.5vw,46px); line-height: 1.12; }
.cap-card-featured p { color: #c0ccd1; font-size: 19px; line-height: 1.65; }
.cap-card:not(.cap-card-featured) { padding-top: 34px; }
.cap-card:not(.cap-card-featured) h3 { margin: 0 0 14px; }

.partner-section { display: grid; grid-template-columns: 1.2fr .8fr; min-height: 600px; background: var(--navy); color: var(--white); }
.partner-image { min-height: 500px; overflow: hidden; }
.partner-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.partner-panel { padding: 88px max(40px,8vw) 84px 8vw; display: flex; justify-content: center; flex-direction: column; }
.partner-panel h2 { max-width: 500px; margin: 0 0 24px; font-size: clamp(42px,4.2vw,60px); line-height: 1.08; letter-spacing: -.06em; }
.partner-panel p:not(.eyebrow) { max-width: 460px; color: #c0ccd1; font-size: 19px; line-height: 1.7; margin: 0 0 32px; }

.contact { background: #e8eeeb; }
.contact-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 12%; align-items: start; }
.contact h2 { font-size: clamp(48px,5.5vw,76px); }
.contact-detail { border-top: 1px solid #cad5d1; margin-top: 56px; padding-top: 18px; display: flex; justify-content: space-between; gap: 18px; max-width: 500px; font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.contact-detail a { color: #176c73; overflow-wrap: anywhere; }
.contact-form { display: flex; flex-direction: column; gap: 23px; padding-top: 6px; }
.contact-form label { color: #53636d; font-size: 15px; font-weight: 750; text-transform: uppercase; letter-spacing: .06em; }
.contact-form input, .contact-form textarea { display: block; width: 100%; border: 0; border-bottom: 1px solid #b9c7c3; background: transparent; padding: 13px 0; font: 500 18px/1.5 var(--sans); color: var(--ink); outline: 0; resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { border-color: #1c7a82; }
.contact-form .button { align-self: flex-start; margin-top: 8px; }
.button-dark { background: var(--navy); color: var(--white); }
.button-dark:hover { background: #1c4158; }
.form-note { min-height: 24px; margin: 0; color: #176d69; font-size: 15px; }
.site-footer { background: var(--navy); color: var(--white); padding: 28px 0; }
.footer-wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-wrap p, .footer-wrap > span { margin: 0; color: #b0bec4; font-size: 14px; font-weight: 650; }
.footer-wrap .brand { font-size: 13px; }
.footer-wrap .brand-mark { width: 25px; height: 25px; }

@media (max-width: 980px) {
  .site-nav { gap: 22px; }
  .container { width: min(100% - 52px, 840px); }
  .split-heading { grid-template-columns: 1fr 2.4fr; gap: 6%; }
  .industry-layout { gap: 7%; }
  .partner-section { grid-template-columns: 1fr 1fr; }
  .partner-panel { padding-left: 7%; padding-right: 7%; }
}

@media (max-width: 760px) {
  section[id] { scroll-margin-top: 82px; }
  .container { width: min(100% - 40px, 560px); }
  .nav-wrap { height: 70px; }
  .brand { font-size: 13px; letter-spacing: .14em; }
  .menu-toggle { display: flex; flex-direction: column; gap: 6px; padding: 8px; }
  .menu-toggle span { width: 24px; height: 1px; background: var(--white); }
  .site-nav { position: absolute; top: 70px; left: 0; right: 0; display: none; flex-direction: column; align-items: flex-start; gap: 0; padding: 14px 20px 24px; background: var(--navy); border-bottom: 1px solid rgba(255,255,255,.14); font-size: 17px; }
  .site-nav.is-open { display: flex; }
  .site-nav a { width: 100%; padding: 13px 0; }
  .site-nav .nav-cta { padding: 13px 0; border: 0; }
  .hero { min-height: 690px; height: 100svh; }
  .hero-media { background-position: 60% center; }
  .hero-shade { background: linear-gradient(90deg,rgba(5,19,31,.9),rgba(5,19,31,.4)),linear-gradient(0deg,rgba(5,19,31,.82),transparent 65%); }
  .hero-content { padding-top: 164px; }
  .eyebrow { font-size: 14px; letter-spacing: .08em; }
  .hero h1 { font-size: clamp(46px,12.5vw,68px); line-height: 1.02; }
  .hero-copy { max-width: 500px; font-size: 18px; margin: 22px 0 28px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 19px; }
  .button { font-size: 14px; padding: 14px 16px; }
  .text-link { font-size: 16px; }
  .hero-foot { bottom: 18px; font-size: 13px; letter-spacing: .05em; }
  .hero-foot span:last-child { display: none; }
  .section-pad { padding: 78px 0; }
  .split-heading, .industry-layout, .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .split-heading h2, .contact h2 { font-size: clamp(38px,10vw,50px); line-height: 1.08; }
  .lead { font-size: 18px; }
  .benefit-grid { grid-template-columns: 1fr; gap: 28px; margin-top: 48px; }
  .benefit-card { padding-top: 16px; }
  .benefit-card h3, .cap-card h3, .step h3 { font-size: 20px; }
  .benefit-card p, .cap-card p, .step p { font-size: 17px; }
  .section-topline { align-items: flex-start; gap: 14px; }
  .section-note { display: none; }
  .steps-grid { grid-template-columns: 1fr; margin-top: 38px; }
  .step, .step:first-child, .step:last-child { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); padding: 0 0 24px; margin-bottom: 24px; min-height: 0; }
  .step:last-child { border-bottom: 0; margin-bottom: 0; }
  .process-callout { align-items: flex-start; margin-top: 34px; gap: 18px; }
  .process-callout p { font-size: 17px; }
  .signal-art { width: 58px; transform: scale(.82); transform-origin: top left; margin-right: -10px; }
  .industry-layout { margin-top: 38px; }
  .industry-copy h2 { font-size: clamp(38px,10vw,50px); }
  .industry-copy > p { font-size: 18px; }
  .industry-list { margin-top: 30px; }
  .industry-list li { font-size: 17px; padding: 14px 0; }
  .image-frame.tall { aspect-ratio: 4/5; }
  .image-tag { font-size: 13px; bottom: 14px; left: 14px; }
  .capabilities { padding-top: 0; }
  .cap-grid { grid-template-columns: 1fr; margin-top: 38px; }
  .cap-card-featured { grid-column: auto; grid-template-columns: 1fr; min-height: 0; }
  .cap-feature-image { height: auto; min-height: 0; aspect-ratio: 16/10; }
  .cap-feature-copy { padding: 27px 24px 30px; }
  .cap-card-featured h3 { font-size: 32px; }
  .cap-card-featured p { font-size: 17px; }
  .cap-card, .cap-card:not(.cap-card-featured) { min-height: 0; padding: 24px; }
  .cap-card:not(.cap-card-featured) h3 { margin-bottom: 10px; }
  .partner-section { grid-template-columns: 1fr; min-height: 0; }
  .partner-image { min-height: 0; height: 300px; }
  .partner-panel { padding: 60px 20px 68px; }
  .partner-panel h2 { font-size: clamp(38px,10vw,50px); }
  .partner-panel p:not(.eyebrow) { font-size: 18px; }
  .contact-detail { flex-direction: column; gap: 8px; margin-top: 36px; font-size: 14px; }
  .contact-form { padding-top: 4px; gap: 20px; }
  .contact-form label { font-size: 14px; }
  .contact-form input, .contact-form textarea { font-size: 17px; }
  .footer-wrap { align-items: flex-start; gap: 16px; flex-direction: column; }
  .footer-wrap p { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}