:root {
  --ink: #172126;
  --muted: #657177;
  --line: #d8e0de;
  --paper: #f4f6f4;
  --white: #fff;
  --teal: #087b76;
  --teal-dark: #075d59;
  --night: #10262a;
  --copper: #c27732;
  --shadow: 0 18px 42px rgba(13, 38, 42, .14);
  --font-display: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); }
body.nav-open { overflow: hidden; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.site-header { position: fixed; z-index: 30; inset: 0 0 auto; min-height: 72px; padding: 12px clamp(18px, 4vw, 64px); display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; color: var(--white); background: rgba(10, 29, 32, .9); border-bottom: 1px solid rgba(255,255,255,.13); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 230px; }
.brand-symbol { width: 46px; height: 46px; flex: 0 0 46px; overflow: hidden; background: linear-gradient(145deg, #8fc8ea 10%, #3288b7 43%, #294579 74%); -webkit-mask: url("assets/boomtec-symbol.png") center/contain no-repeat; mask: url("assets/boomtec-symbol.png") center/contain no-repeat; }
.brand-symbol img { width: 100%; height: 100%; object-fit: contain; opacity: 0; }
.brand-name { color: var(--white); font-family: var(--font-display); font-weight: 800; font-size: 20px; white-space: nowrap; }
.site-nav { display: flex; justify-content: flex-end; gap: 24px; color: rgba(255,255,255,.78); font-size: 14px; font-weight: 700; }
.site-nav a { padding: 10px 0; }
.site-nav a:hover, .site-nav a:focus { color: var(--white); }
.header-cta, .button, .menu-button { border: 0; border-radius: 5px; font-weight: 800; cursor: pointer; }
.header-cta { padding: 13px 18px; color: var(--white); background: var(--copper); font-size: 14px; white-space: nowrap; }
.menu-button { display: none; padding: 11px 14px; color: var(--white); background: rgba(255,255,255,.12); }
.hero { position: relative; min-height: 92vh; display: flex; align-items: stretch; overflow: hidden; color: var(--white); }
.hero-media, .hero-shade { position: absolute; inset: 0; }
.hero-media { background: url("assets/process-plant.jpg") center/cover no-repeat; transform: scale(1.02); }
.hero-shade { background: linear-gradient(90deg, rgba(7,26,29,.94) 0%, rgba(7,26,29,.77) 52%, rgba(7,26,29,.15) 100%), linear-gradient(0deg, rgba(7,26,29,.62), transparent 55%); }
.hero-inner { position: relative; z-index: 1; width: 100%; max-width: 1500px; margin: 0 auto; padding: 148px clamp(20px, 5vw, 76px) 88px; display: grid; grid-template-columns: minmax(0, 760px) minmax(260px, 360px); gap: 70px; align-items: end; }
.eyebrow { margin: 0 0 14px; color: var(--copper); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .1em; }
.eyebrow.light { color: #f2b168; }
.hero h1 { max-width: 820px; margin: 0; font-family: var(--font-display); font-size: clamp(52px, 7vw, 96px); line-height: .98; font-weight: 800; }
.hero-lead { max-width: 690px; margin: 24px 0 0; color: rgba(255,255,255,.84); font-size: clamp(18px, 2vw, 22px); line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { min-height: 48px; padding: 14px 19px; display: inline-flex; align-items: center; justify-content: center; text-align: center; transition: transform .18s ease, background .18s ease; }
.button:hover, .button:focus { transform: translateY(-2px); }
.button.primary { color: var(--white); background: var(--teal); }
.button.primary:hover { background: var(--teal-dark); }
.button.secondary { color: var(--white); border: 1px solid rgba(255,255,255,.45); background: rgba(255,255,255,.08); }
.button.outline { color: var(--teal-dark); border: 1px solid var(--teal); background: transparent; }
.hero-proof { border-top: 3px solid var(--copper); background: rgba(8,31,34,.8); backdrop-filter: blur(9px); }
.hero-proof > p { margin: 0; padding: 19px 20px; color: rgba(255,255,255,.67); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.proof-row { padding: 18px 20px; display: grid; grid-template-columns: 1fr 1.35fr; gap: 14px; align-items: center; border-top: 1px solid rgba(255,255,255,.14); }
.proof-row strong { font-size: 24px; }
.proof-row span { color: rgba(255,255,255,.68); font-size: 13px; line-height: 1.35; }
.hero-next { position: absolute; z-index: 2; bottom: 0; left: clamp(20px, 5vw, 76px); padding: 16px 22px; color: var(--night); background: var(--paper); font-size: 13px; font-weight: 800; }
.hero-next span { margin-left: 14px; color: var(--teal); }
.industry-strip { display: grid; grid-template-columns: repeat(6,1fr); background: var(--line); gap: 1px; border-bottom: 1px solid var(--line); }
.industry-strip span { min-height: 66px; padding: 16px; display: flex; align-items: center; justify-content: center; background: var(--white); color: #405156; font-size: 13px; font-weight: 900; text-align: center; }
.section { padding: clamp(72px, 9vw, 126px) clamp(20px, 5vw, 76px); }
.section-heading { max-width: 1180px; margin: 0 auto 48px; }
.split-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: clamp(30px, 7vw, 110px); align-items: end; }
.section-heading h2, .featured-copy h2, .capability-copy h2, .media-copy h2, .contact-copy h2, .downloads h2, .story-copy h2 { margin: 0; font-family: var(--font-display); font-size: clamp(36px, 4.6vw, 64px); line-height: 1.05; }
.section-heading > p, .split-heading > p, .media-copy > p, .capability-copy > p, .contact-copy > p, .story-copy p { color: var(--muted); line-height: 1.75; }
.source-section { background: var(--paper); }
.solution-grid { max-width: 1380px; margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.solution-card { background: var(--white); border-bottom: 3px solid var(--teal); box-shadow: 0 10px 30px rgba(13,38,42,.08); }
.solution-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.solution-body { padding: 28px; }
.solution-index { color: var(--copper); font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.solution-body h3 { margin: 12px 0; font-size: 25px; line-height: 1.15; }
.solution-body p, .solution-body li { color: var(--muted); font-size: 14px; line-height: 1.65; }
.solution-body ul { padding-left: 18px; margin: 20px 0; }
.solution-body a, .text-link { color: var(--teal-dark); font-weight: 900; font-size: 14px; }
.feature-band { display: grid; grid-template-columns: 1.15fr .85fr; background: var(--night); color: var(--white); }
.featured-image img { width: 100%; height: 100%; min-height: 610px; object-fit: cover; }
.featured-copy { padding: clamp(56px, 7vw, 110px); display: flex; flex-direction: column; justify-content: center; }
.featured-copy > p { color: rgba(255,255,255,.68); line-height: 1.7; }
.project-parameters { margin: 30px 0; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.project-parameters div { padding: 22px 12px 22px 0; }
.project-parameters strong { display: block; font-size: 28px; }
.project-parameters span { display: block; margin-top: 7px; color: rgba(255,255,255,.58); font-size: 11px; text-transform: uppercase; line-height: 1.4; }
.light-link { color: #f2b168; }
.project-section { background: var(--white); }
.case-grid { max-width: 1380px; margin: 0 auto; display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.case-grid article { min-height: 260px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case-grid span { color: var(--copper); font-size: 11px; font-weight: 900; text-transform: uppercase; }
.case-grid h3 { margin: 58px 0 12px; font-size: 21px; }
.case-grid p { color: var(--muted); font-size: 14px; line-height: 1.65; }
.centered-button { width: max-content; margin: 34px auto 0; }
.capabilities-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(38px, 7vw, 100px); color: var(--white); background: #164146; }
.capability-copy { align-self: center; }
.capability-copy > p { color: rgba(255,255,255,.7); }
.capability-list { margin: 30px 0; border-top: 1px solid rgba(255,255,255,.2); }
.capability-list div { padding: 16px 0; display: grid; grid-template-columns: 44px 1fr; gap: 12px; border-bottom: 1px solid rgba(255,255,255,.2); }
.capability-list strong { color: #f2b168; }
.capability-gallery { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.capability-gallery img { width: 100%; height: 220px; object-fit: cover; }
.capability-gallery .gallery-main { grid-column: 1/-1; height: 390px; }
.media-section { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(34px, 7vw, 100px); align-items: center; }
.media-copy { min-width: 0; }
.media-copy .button { margin-top: 16px; }
.video-language { display: inline-block; max-width: 100%; margin: 22px 0 4px; padding: 10px 12px; color: var(--teal-dark) !important; border-left: 3px solid var(--copper); background: var(--white); font-size: 12px; font-weight: 900; line-height: 1.5; overflow-wrap: anywhere; text-transform: uppercase; }
.video-frame { padding: 10px; background: var(--night); box-shadow: var(--shadow); }
.video-frame video { width: 100%; aspect-ratio: 16/9; background: #000; }
.contact-section { padding: clamp(74px, 9vw, 124px) clamp(20px, 5vw, 76px); display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(40px, 8vw, 120px); color: var(--white); background: var(--night); }
.contact-copy { max-width: 590px; }
.contact-copy > p { color: rgba(255,255,255,.68); }
.contact-details { margin-top: 30px; display: grid; gap: 12px; color: rgba(255,255,255,.8); }
.contact-details a { color: var(--white); font-weight: 800; }
.assessment-form { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.assessment-form label { display: grid; gap: 8px; color: rgba(255,255,255,.72); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.assessment-form input, .assessment-form select, .assessment-form textarea { width: 100%; padding: 13px 12px; color: var(--white); border: 1px solid rgba(255,255,255,.25); border-radius: 3px; background: rgba(255,255,255,.06); outline: none; }
.assessment-form input:focus, .assessment-form select:focus, .assessment-form textarea:focus { border-color: #f2b168; }
.assessment-form select option { color: var(--ink); }
.full-field { grid-column: 1/-1; }
.form-note { margin: 0; color: rgba(255,255,255,.5); font-size: 12px; }
.form-note.is-success { color: #a8e8c0; }
.form-note.is-error { color: #ffb4a8; }
.assessment-form button:disabled { cursor: wait; opacity: .65; }
.form-trap { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.site-footer { padding: 34px clamp(20px, 5vw, 76px); display: grid; grid-template-columns: 1fr auto auto; gap: 42px; align-items: center; color: rgba(255,255,255,.7); background: #081719; font-size: 13px; }
.footer-brand { min-width: 0; }
.legal-name { margin: 8px 0 0; color: rgba(255,255,255,.45); font-size: 11px; }
.site-footer nav { display: flex; gap: 20px; font-weight: 800; }
.site-footer > p { max-width: 180px; text-align: right; }

/* Supporting pages */
.subpage-main { padding-top: 72px; }
.subpage-hero { position: relative; min-height: 570px; display: flex; align-items: end; color: var(--white); overflow: hidden; background: var(--night); }
.subpage-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,24,27,.9), rgba(6,24,27,.2)); }
.subpage-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.subpage-hero-copy { position: relative; z-index: 1; max-width: 850px; padding: clamp(70px, 9vw, 130px) clamp(20px, 5vw, 76px); }
.subpage-hero-copy h1 { margin: 0; font-family: var(--font-display); font-size: clamp(44px, 6vw, 78px); line-height: 1; }
.subpage-hero-copy p:last-child { max-width: 680px; color: rgba(255,255,255,.76); font-size: 18px; line-height: 1.6; }
.band { background: var(--white); }
.spec-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); }
.spec-grid article { padding: 30px; background: var(--paper); }
.spec-grid strong, .spec-grid span { display: block; }
.spec-grid strong { color: var(--teal-dark); font-size: 32px; }
.spec-grid span { margin-top: 8px; color: var(--muted); font-size: 13px; line-height: 1.5; }
.company-grid, .factory-grid { max-width: 1200px; margin: 38px auto 0; display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.company-grid article { padding: 30px; background: var(--white); border: 1px solid var(--line); }
.company-grid h3 { margin-top: 0; font-size: 22px; }
.company-grid li { color: var(--muted); line-height: 1.8; }
.factory-grid { grid-template-columns: repeat(3,1fr); }
.factory-grid img { width: 100%; height: 280px; object-fit: cover; }
.story-copy { max-width: 900px; margin: 0 auto; }
.innovation-section { background: var(--night); color: var(--white); }
.innovation-section .section-heading p { color: rgba(255,255,255,.66); }
.innovation-stats { max-width: 1200px; margin: 40px auto 0; display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid rgba(255,255,255,.14); }
.innovation-stats article { min-height: 150px; padding: 30px; border-right: 1px solid rgba(255,255,255,.14); }
.innovation-stats article:last-child { border-right: 0; }
.innovation-stats strong, .innovation-stats span { display: block; }
.innovation-stats strong { color: var(--copper); font-family: var(--font-display); font-size: 54px; line-height: 1; }
.innovation-stats span { margin-top: 12px; color: rgba(255,255,255,.68); font-size: 13px; line-height: 1.5; }
.recognition-grid { max-width: 1200px; margin: 18px auto 0; display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.recognition-card { padding: 28px; border-top: 3px solid var(--teal); background: rgba(255,255,255,.06); }
.recognition-card .tag { color: var(--copper); font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.recognition-card h3 { margin: 18px 0 12px; font-size: 22px; }
.recognition-card p:last-child { margin-bottom: 0; color: rgba(255,255,255,.64); font-size: 13px; line-height: 1.7; }
.qualification-strip { max-width: 1200px; margin: 18px auto 0; padding: 30px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; border: 1px solid rgba(255,255,255,.14); }
.qualification-strip h3 { max-width: 420px; margin: 14px 0 0; font-size: 27px; }
.qualification-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.qualification-list span { min-height: 66px; padding: 15px; display: flex; align-items: center; border-left: 3px solid var(--teal); background: rgba(255,255,255,.06); color: rgba(255,255,255,.7); font-size: 12px; line-height: 1.5; }
.founder-recognition { max-width: 1200px; margin: 18px auto 0; display: grid; grid-template-columns: .72fr 1.28fr; background: #14383b; }
.founder-recognition-copy { padding: 32px; }
.founder-recognition-copy h3 { margin: 14px 0; font-size: 28px; }
.founder-recognition-copy p:last-child { color: rgba(255,255,255,.62); font-size: 13px; line-height: 1.7; }
.founder-recognition-list { display: grid; grid-template-columns: repeat(2,1fr); border-left: 1px solid rgba(255,255,255,.13); }
.founder-recognition-list article { min-height: 130px; padding: 26px; border-right: 1px solid rgba(255,255,255,.13); border-bottom: 1px solid rgba(255,255,255,.13); }
.founder-recognition-list strong, .founder-recognition-list span { display: block; }
.founder-recognition-list strong { color: var(--copper); font-size: 13px; }
.founder-recognition-list span { margin-top: 12px; color: rgba(255,255,255,.76); font-size: 12px; line-height: 1.6; }
.patent-focus { max-width: 1200px; margin: 18px auto 0; padding: 30px; display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; background: var(--white); color: var(--night); }
.patent-focus h3 { max-width: 430px; margin: 14px 0 0; font-size: 28px; }
.patent-focus ul { margin: 0; padding-left: 20px; columns: 2; column-gap: 36px; }
.patent-focus li { break-inside: avoid; margin-bottom: 16px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.evidence-note { max-width: 1200px; margin: 18px auto 0; color: rgba(255,255,255,.46); font-size: 10px; line-height: 1.6; }
.projects-section { background: var(--paper); }
.project-grid { max-width: 1280px; margin: 40px auto 0; display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.project-card { padding: 32px; background: var(--white); border-top: 3px solid var(--teal); box-shadow: 0 10px 30px rgba(13,38,42,.07); }
.project-card.featured-project { grid-column: 1/-1; background: var(--night); color: var(--white); border-top-color: var(--copper); }
.project-card .tag { color: var(--copper); font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.project-card h3 { margin: 16px 0 12px; font-size: 26px; }
.project-card p, .project-card li { color: var(--muted); line-height: 1.7; }
.project-card.featured-project p, .project-card.featured-project li { color: rgba(255,255,255,.7); }
.downloads { display: flex; justify-content: space-between; gap: 50px; align-items: center; }
.download-copy { max-width: 760px; }
.download-copy p { color: var(--muted); line-height: 1.65; }
.download-actions { display: flex; gap: 12px; flex-wrap: wrap; }

@media (max-width: 1080px) {
  .site-header { grid-template-columns: auto auto 1fr; }
  .site-nav { position: fixed; inset: 72px 0 auto; padding: 22px; display: none; flex-direction: column; background: var(--night); }
  .site-nav.is-open { display: flex; }
  .menu-button { display: block; }
  .header-cta { justify-self: end; }
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .hero-proof { max-width: 600px; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card { display: grid; grid-template-columns: .8fr 1.2fr; }
  .solution-card img { height: 100%; aspect-ratio: auto; }
  .feature-band, .capabilities-section, .media-section, .contact-section { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: repeat(2,1fr); }
  .featured-image img { min-height: 460px; }
}
@media (max-width: 760px) {
  .site-header { min-height: 66px; padding: 10px 16px; gap: 10px; }
  .brand { min-width: 0; }
  .brand-symbol { width: 40px; height: 40px; flex-basis: 40px; }
  .brand-name { font-size: 16px; }
  .header-cta { display: none; }
  .site-nav { inset: 66px 0 auto; }
  .hero { min-height: 780px; }
  .hero-inner { padding: 128px 20px 72px; align-content: end; }
  .hero h1 { font-size: 52px; }
  .hero-next { left: 20px; }
  .industry-strip { grid-template-columns: repeat(2,1fr); }
  .split-heading { grid-template-columns: 1fr; gap: 12px; }
  .section { padding: 68px 20px; }
  .section-heading h2, .featured-copy h2, .capability-copy h2, .media-copy h2, .contact-copy h2, .downloads h2, .story-copy h2 { font-size: 38px; }
  .solution-card { display: block; }
  .solution-card img { aspect-ratio: 16/10; }
  .featured-copy { padding: 56px 20px; }
  .featured-image img { min-height: 340px; }
  .project-parameters { grid-template-columns: 1fr; }
  .project-parameters div { border-bottom: 1px solid rgba(255,255,255,.12); }
  .case-grid, .capability-gallery, .assessment-form, .spec-grid, .company-grid, .factory-grid, .project-grid, .innovation-stats, .recognition-grid, .patent-focus, .qualification-strip, .qualification-list, .founder-recognition, .founder-recognition-list { grid-template-columns: 1fr; }
  .innovation-stats article { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .innovation-stats article:last-child { border-bottom: 0; }
  .founder-recognition-list { border-left: 0; border-top: 1px solid rgba(255,255,255,.13); }
  .patent-focus ul { columns: 1; }
  .project-card.featured-project { grid-column: auto; }
  .capabilities-section, .media-section, .contact-section { padding: 68px 20px; }
  .capability-gallery .gallery-main { height: 260px; }
  .capability-gallery img { height: 220px; }
  .full-field { grid-column: auto; }
  .site-footer { grid-template-columns: 1fr; gap: 22px; }
  .site-footer > p { text-align: left; }
  .site-footer nav { flex-wrap: wrap; }
  .subpage-main { padding-top: 66px; }
  .subpage-hero { min-height: 520px; }
  .downloads { display: block; }
  .download-actions { margin-top: 24px; }
}