:root {
  --navy: #071722;
  --navy-soft: #102936;
  --ink: #10222d;
  --paper: #f4f6f4;
  --white: #ffffff;
  --amber: #54bfd6;
  --brand: #2196b3;
  --brand-dark: #166e83;
  --line: rgba(16, 34, 45, .14);
  --muted: #61717a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Manrope, Arial, sans-serif; font-size: 16px; line-height: 1.65; }
a { color: inherit; }
button, input, textarea { font: inherit; }

.site-header { position: absolute; z-index: 20; top: 0; left: 0; width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 28px clamp(24px, 5vw, 76px); color: white; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.company-logo { display: block; width: 150px; height: auto; border-radius: 2px; }
.footer-brand .company-logo { width: 112px; }
.brand-mark { width: 52px; height: 38px; display: grid; place-items: center; background: var(--amber); color: var(--navy); font-size: 17px; font-weight: 800; letter-spacing: -.04em; border-radius: 3px; transform: skew(-7deg); }
.brand-copy { display: grid; line-height: 1.05; font-size: 14px; text-transform: uppercase; letter-spacing: .1em; }
.brand-copy strong { font-size: 16px; letter-spacing: .04em; }
.brand-copy span { opacity: .68; }
nav { display: flex; align-items: center; gap: 38px; font-weight: 600; font-size: 14px; }
nav a { text-decoration: none; }
nav a:not(.nav-cta) { opacity: .82; }
nav a:not(.nav-cta):hover { opacity: 1; }
.nav-cta { padding: 11px 19px; border: 1px solid #54bfd6; border-radius: 3px; }
.menu-button { display: none; background: none; border: 0; padding: 10px; }
.menu-button span { display: block; width: 26px; height: 2px; margin: 6px; background: white; }

.hero { min-height: 760px; height: 92vh; position: relative; display: flex; align-items: center; color: white; overflow: hidden; background: var(--navy); }
.hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,17,25,.92) 0%, rgba(4,17,25,.74) 36%, rgba(4,17,25,.2) 67%, rgba(4,17,25,.1) 100%); }
.hero-content { position: relative; z-index: 2; width: min(720px, 84vw); margin-left: clamp(24px, 8vw, 126px); padding-top: 56px; }
.eyebrow, .kicker { margin: 0 0 22px; text-transform: uppercase; letter-spacing: .18em; font-size: 12px; font-weight: 800; color: var(--brand-dark); }
.eyebrow { display: flex; align-items: center; gap: 13px; color: var(--amber); }
.eyebrow span { width: 34px; height: 2px; background: var(--amber); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 28px; max-width: 850px; font-size: clamp(50px, 6.4vw, 94px); line-height: .98; letter-spacing: -.055em; font-weight: 700; }
h1 em { color: var(--amber); font-style: normal; }
.hero-intro { max-width: 620px; margin-bottom: 34px; color: rgba(255,255,255,.78); font-size: clamp(18px, 1.7vw, 22px); line-height: 1.55; }
.hero-actions { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 28px; min-height: 56px; padding: 0 24px; border: 0; border-radius: 3px; text-decoration: none; font-weight: 800; cursor: pointer; }
.button span { font-size: 21px; }
.button.primary { background: var(--brand); color: var(--navy); }
.button.primary:hover { background: #54bfd6; }
.text-link { color: white; text-decoration: none; font-weight: 700; }
.text-link span { color: var(--amber); margin-left: 9px; }
.hero-note { position: absolute; z-index: 2; right: clamp(24px, 5vw, 76px); bottom: 42px; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.72); font-size: 12px; line-height: 1.35; text-transform: uppercase; letter-spacing: .08em; }
.note-number { color: white; font-weight: 700; font-size: 48px; line-height: 1; }

.proof { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 1320px; margin: 0 auto; padding: 0 clamp(24px, 4vw, 56px); background: white; transform: translateY(-1px); }
.proof div { padding: 30px 34px; border-right: 1px solid var(--line); }
.proof div:last-child { border: 0; }
.proof strong, .proof span { display: block; }
.proof strong { font-size: 15px; }
.proof span { color: var(--muted); font-size: 13px; margin-top: 3px; }

.section { max-width: 1280px; margin: 0 auto; padding: 120px clamp(24px, 4vw, 56px); }
.section-heading { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: end; margin-bottom: 56px; }
.section-heading .kicker { grid-column: 1 / -1; margin-bottom: -10px; }
h2 { margin-bottom: 0; font-size: clamp(40px, 5vw, 68px); line-height: 1.06; letter-spacing: -.045em; }
.section-heading > p:last-child { max-width: 510px; margin-bottom: 6px; color: var(--muted); }
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.service-card { position: relative; min-height: 330px; padding: 44px; background: white; }
.service-card.featured { background: #e1f2f6; border-top: 4px solid var(--brand); }
.service-card.dark { background: var(--navy); color: white; }
.service-card.stairwalker { grid-column: 1 / -1; min-height: 0; background: #e1f2f6; border-left: 4px solid var(--brand); padding-top: 38px; padding-bottom: 38px; }
.service-card.stairwalker p { max-width: 850px; }
.card-index { position: absolute; right: 34px; top: 28px; font-size: 12px; letter-spacing: .15em; opacity: .45; }
.service-icon { width: 54px; height: 54px; margin-bottom: 54px; color: var(--brand-dark); }
.service-card.dark .service-icon { color: var(--amber); }
.service-icon svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.service-card h3 { margin-bottom: 12px; font-size: 26px; line-height: 1.2; }
.service-card p { max-width: 500px; margin-bottom: 0; color: var(--muted); }
.service-card.featured p { color: rgba(7,23,34,.72); }
.service-card.dark p { color: rgba(255,255,255,.62); }

.standards { display: grid; grid-template-columns: .9fr 1.1fr; background: var(--navy); color: white; }
.standards-copy { padding: 110px clamp(24px, 7vw, 110px); background: linear-gradient(145deg, var(--navy-soft), var(--navy)); }
.kicker.light { color: var(--amber); }
.standards-copy h2 { margin-bottom: 30px; }
.standards-copy > p:last-child { max-width: 520px; color: rgba(255,255,255,.64); }
.standards-list { margin: 0; padding: 0; list-style: none; }
.standards-list li { display: grid; grid-template-columns: 70px 1fr; gap: 22px; min-height: 25%; padding: 34px clamp(24px, 6vw, 86px) 32px 38px; border-bottom: 1px solid rgba(255,255,255,.12); align-items: center; }
.standards-list li > span { color: var(--amber); font-size: 12px; letter-spacing: .14em; }
.standards-list strong { display: block; font-size: 21px; margin-bottom: 3px; }
.standards-list p { margin: 0; color: rgba(255,255,255,.58); font-size: 14px; }

.about { display: grid; grid-template-columns: 1fr 1fr; gap: 9vw; }
.about-statement h2 { max-width: 590px; }
.about-copy { padding-top: 42px; color: var(--muted); }
.about-copy .lead { color: var(--ink); font-size: 21px; font-weight: 600; }

.contact { display: grid; grid-template-columns: .85fr 1.15fr; gap: 8vw; padding: 110px clamp(24px, 8vw, 126px); background: #0c2330; color: white; }
.contact-intro > p:not(.kicker) { max-width: 540px; margin-top: 26px; color: rgba(255,255,255,.62); }
.email-link { display: inline-block; margin-top: 15px; color: var(--amber); font-weight: 700; text-decoration-thickness: 1px; text-underline-offset: 5px; }
form { display: grid; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label { display: grid; gap: 8px; color: rgba(255,255,255,.72); font-size: 13px; font-weight: 700; }
input, textarea { width: 100%; border: 1px solid rgba(255,255,255,.2); border-radius: 3px; padding: 15px 16px; background: rgba(255,255,255,.06); color: white; outline: none; }
input::placeholder, textarea::placeholder { color: rgba(255,255,255,.36); }
input:focus, textarea:focus { border-color: var(--amber); }
textarea { resize: vertical; }
form .button { justify-self: start; margin-top: 4px; }
.form-note { margin: -7px 0 0; color: rgba(255,255,255,.45); font-size: 12px; }

footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px clamp(24px, 5vw, 76px); background: #051119; color: rgba(255,255,255,.48); font-size: 12px; }
footer p { margin: 0; }
.footer-brand { color: white; }

@media (max-width: 900px) {
  .site-header { padding: 20px 22px; }
  .menu-button { display: block; z-index: 2; }
  nav { position: absolute; top: 0; left: 0; right: 0; display: none; flex-direction: column; align-items: flex-start; gap: 24px; padding: 96px 24px 30px; background: var(--navy); }
  nav.open { display: flex; }
  .hero { min-height: 680px; height: auto; }
  .hero-content { margin: 0; padding: 160px 24px 130px; width: 100%; }
  .hero-shade { background: linear-gradient(90deg, rgba(4,17,25,.94), rgba(4,17,25,.54)); }
  .hero-note { display: none; }
  .proof { grid-template-columns: 1fr; }
  .proof div { border-right: 0; border-bottom: 1px solid var(--line); }
  .section { padding-top: 86px; padding-bottom: 86px; }
  .section-heading, .about, .standards, .contact { grid-template-columns: 1fr; }
  .section-heading { gap: 24px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 300px; }
  .standards-copy, .contact { padding: 80px 24px; }
  .about { gap: 28px; }
  .about-copy { padding-top: 0; }
}

@media (max-width: 560px) {
  h1 { font-size: 49px; }
  h2 { font-size: 39px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .service-card { padding: 32px 26px; }
  .form-row { grid-template-columns: 1fr; }
  footer { align-items: flex-start; flex-direction: column; }
  footer > p:nth-child(2) { display: none; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }