:root {
  --ink: #0b0c0d;
  --ink-soft: #151719;
  --steel: #5f656a;
  --line: #d9d7d2;
  --paper: #f3f1ed;
  --white: #ffffff;
  --copper: #c8753d;
  --copper-dark: #9e5429;
  --copper-light: #e09a68;
  --shell: min(1180px, calc(100% - 40px));
  --shadow: 0 22px 60px rgba(8, 9, 10, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

img,
svg {
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(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;
}

.utility-bar {
  min-height: 34px;
  color: #d7d7d7;
  background: #050606;
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.utility-inner {
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.utility-inner span:last-child {
  color: var(--copper-light);
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  color: var(--white);
  background: rgba(11, 12, 13, 0.94);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 50px;
  height: 43px;
  flex: 0 0 auto;
  object-fit: contain;
  object-position: center;
}

.brand-copy {
  display: grid;
  line-height: 1;
}

.brand-copy strong {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.brand-copy small {
  margin-top: 5px;
  color: #bbb;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.19em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.site-nav > a:not(.button) {
  position: relative;
  color: #dedede;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.035em;
}

.site-nav > a:not(.button)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 2px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav > a:not(.button):hover::after,
.site-nav > a:not(.button):focus-visible::after {
  transform: scaleX(1);
}

.site-nav .nav-phone {
  color: var(--copper-light) !important;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 11px;
  color: var(--white);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.menu-toggle > span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 0;
  font-size: 0.84rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-small {
  min-height: 42px;
  padding-inline: 18px;
  font-size: 0.74rem;
}

.button-copper {
  color: var(--white);
  background: var(--copper);
  border-color: var(--copper);
}

.button-copper:hover,
.button-copper:focus-visible {
  background: var(--copper-dark);
  border-color: var(--copper-dark);
}

.button-ghost {
  color: var(--white);
  background: rgba(8, 9, 10, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  background: var(--white);
  color: var(--ink);
}

.button-dark {
  color: var(--white);
  background: var(--ink);
  border-color: var(--ink);
}

.button-dark:hover,
.button-dark:focus-visible {
  background: var(--copper-dark);
  border-color: var(--copper-dark);
}

.hero {
  position: relative;
  min-height: calc(100vh - 112px);
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
}

.hero-image,
.hero-shade,
.hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(4, 5, 6, 0.94) 0%, rgba(4, 5, 6, 0.78) 38%, rgba(4, 5, 6, 0.18) 72%, rgba(4, 5, 6, 0.1) 100%),
    linear-gradient(0deg, rgba(4, 5, 6, 0.65) 0%, transparent 45%);
}

.hero-grid {
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, #000, transparent 65%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding-block: 90px 110px;
}

.hero-copy {
  width: min(720px, 63vw);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--copper-light);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow.dark {
  color: var(--copper-dark);
}

.hero h1,
.section h2,
.coverage h2,
.contact h2 {
  margin: 0;
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.hero h1 {
  max-width: 780px;
  font-size: clamp(3.3rem, 7vw, 6.8rem);
  text-transform: uppercase;
}

.hero h1 span {
  color: var(--copper-light);
}

.hero-lead {
  max-width: 650px;
  margin: 26px 0 0;
  color: #e4e4e4;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 56px;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

.hero-proof div {
  display: grid;
  gap: 3px;
  padding: 16px 20px 16px 0;
}

.hero-proof div + div {
  padding-left: 20px;
  border-left: 1px solid rgba(255, 255, 255, 0.25);
}

.hero-proof strong {
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-proof span {
  color: #b7b7b7;
  font-size: 0.78rem;
}

.hero-scroll {
  position: absolute;
  z-index: 3;
  right: 28px;
  bottom: 34px;
  color: #d0d0d0;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.hero-scroll::after {
  content: "";
  width: 1px;
  height: 48px;
  display: block;
  margin: 14px auto 0;
  background: var(--copper-light);
}

.service-band {
  color: var(--white);
  background: var(--copper-dark);
}

.service-band-grid {
  min-height: 74px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
}

.service-band span {
  padding: 4px 22px;
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-align: center;
  text-transform: uppercase;
}

.service-band span + span {
  border-left: 1px solid rgba(255, 255, 255, 0.28);
}

.section {
  padding-block: 116px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  align-items: end;
  gap: 70px;
  margin-bottom: 58px;
}

.section-heading h2,
.company h2,
.market-title h2,
.contact h2 {
  max-width: 760px;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
}

.section-heading > p,
.company-copy > p,
.coverage-inner > p,
.contact-copy > p {
  margin: 0;
  color: #585b5e;
  font-size: 1.04rem;
  line-height: 1.75;
}

.services {
  background: var(--paper);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.service-card {
  position: relative;
  min-height: 430px;
  padding: 38px 34px 40px;
}

.service-card + .service-card {
  border-left: 1px solid var(--line);
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--white);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 300ms ease;
}

.service-card:hover::before {
  transform: scaleY(1);
}

.service-card > * {
  position: relative;
}

.service-number {
  color: var(--copper-dark);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.15em;
}

.service-card h3,
.detail-item h3,
.process-grid h3,
.safety-panel h3 {
  margin: 70px 0 14px;
  font-size: 1.45rem;
  line-height: 1.15;
}

.service-card p,
.detail-item p,
.process-grid p,
.safety-panel p {
  color: #5c6063;
}

.service-card ul,
.safety-panel ul {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.service-card li,
.safety-panel li {
  position: relative;
  padding: 10px 0 10px 18px;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
  font-weight: 700;
}

.service-card li::before,
.safety-panel li::before {
  content: "";
  position: absolute;
  top: 17px;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--copper);
}

.systems {
  color: var(--white);
  background: var(--ink-soft);
  overflow: hidden;
}

.systems-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 88px;
}

.systems-intro h2 {
  font-size: clamp(2.8rem, 5vw, 4.8rem);
}

.systems-intro > p:not(.eyebrow) {
  margin: 28px 0 30px;
  color: #bec0c2;
  line-height: 1.78;
}

.text-link {
  display: inline-block;
  padding-bottom: 5px;
  color: var(--copper-light);
  border-bottom: 1px solid currentColor;
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.assembly-diagram {
  position: relative;
  padding: 18px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 34px 34px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.assembly-layer {
  min-height: 92px;
  display: grid;
  grid-template-columns: 46px 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 0 24px;
  color: var(--ink);
  transform: skewX(-3deg);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

.assembly-layer + .assembly-layer {
  margin-top: 12px;
}

.assembly-layer > * {
  transform: skewX(3deg);
}

.assembly-layer span {
  color: rgba(11, 12, 13, 0.55);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.assembly-layer strong {
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.assembly-layer small {
  color: rgba(11, 12, 13, 0.65);
  font-size: 0.75rem;
  font-weight: 700;
}

.layer-membrane { background: #f2f2ef; }
.layer-cover { background: #bfc2c2; margin-inline: 13px; }
.layer-insulation { background: var(--copper-light); margin-inline: 27px; }
.layer-deck { color: var(--white); background: #34383b; margin-inline: 42px; }
.layer-deck span,
.layer-deck small { color: #bfc1c2; }

.details-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 88px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.detail-item {
  padding: 32px 32px 0;
}

.detail-item:first-child {
  padding-left: 0;
}

.detail-item + .detail-item {
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.detail-item h3 {
  margin: 0 0 12px;
}

.detail-item p {
  margin-bottom: 0;
  color: #adafb1;
}

.projects {
  background: var(--paper);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.project-card {
  position: relative;
  min-height: 510px;
  margin: 0;
  overflow: hidden;
  color: var(--white);
  background: var(--ink-soft);
  box-shadow: var(--shadow);
}

.project-card img {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  object-fit: cover;
  object-position: center;
  transition: transform 500ms ease;
}

.project-card-featured img {
  object-position: 55% center;
}

.project-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 6, 7, 0.05) 32%, rgba(5, 6, 7, 0.92) 100%);
}

.project-card:hover img {
  transform: scale(1.025);
}

.project-caption {
  position: absolute;
  z-index: 1;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 36px;
}

.project-caption span {
  color: var(--copper-light);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.project-caption h3 {
  margin: 12px 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  line-height: 1.06;
}

.project-caption p {
  max-width: 620px;
  margin: 0;
  color: #d6d7d7;
}

.markets {
  background: var(--white);
}

.markets-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 90px;
}

.market-list {
  border-top: 1px solid var(--ink);
}

.market-list div {
  display: grid;
  grid-template-columns: 60px 1fr;
  align-items: center;
  gap: 18px;
  min-height: 85px;
  border-bottom: 1px solid var(--line);
}

.market-list span {
  color: var(--copper-dark);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.market-list strong {
  font-size: 1.12rem;
}

.process {
  color: var(--white);
  background: #090a0b;
}

.section-heading-light > p {
  color: #aaacae;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.process-grid li {
  position: relative;
  padding: 32px 28px 10px 0;
}

.process-grid li + li {
  padding-left: 28px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.process-grid li::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--copper);
}

.process-grid li + li::before {
  left: 28px;
}

.process-grid span {
  color: var(--copper-light);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.process-grid h3 {
  margin: 48px 0 12px;
}

.process-grid p {
  margin: 0;
  color: #aaacae;
  font-size: 0.9rem;
}

.company {
  background: var(--paper);
}

.company-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.65fr;
  align-items: start;
  gap: 100px;
}

.company-copy .company-lead {
  margin: 32px 0 20px;
  color: var(--ink);
  font-size: 1.18rem;
  line-height: 1.72;
}

.credential-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 34px;
}

.credential-row span {
  padding: 9px 12px;
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.safety-panel {
  padding: 46px;
  color: var(--white);
  background: var(--ink-soft);
  box-shadow: var(--shadow);
}

.panel-kicker {
  color: var(--copper-light);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.safety-panel h3 {
  margin: 42px 0 18px;
  font-size: 2rem;
}

.safety-panel p {
  color: #c2c4c5;
}

.safety-panel li {
  border-color: rgba(255, 255, 255, 0.14);
}

.coverage {
  padding-block: 88px;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(158, 84, 41, 0.98), rgba(200, 117, 61, 0.94)),
    var(--copper-dark);
}

.coverage-inner {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  align-items: end;
  gap: 80px;
}

.coverage h2 {
  font-size: clamp(2.5rem, 5vw, 4.6rem);
}

.coverage .eyebrow {
  color: rgba(255, 255, 255, 0.72);
}

.coverage-inner > p {
  color: rgba(255, 255, 255, 0.86);
}

.contact {
  background: var(--white);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 100px;
}

.contact-copy > p {
  margin-top: 28px;
}

.contact-direct {
  display: grid;
  gap: 0;
  margin-top: 40px;
  border-top: 1px solid var(--line);
}

.contact-direct a {
  display: grid;
  gap: 2px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.contact-direct small {
  color: var(--steel);
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact-direct strong {
  font-size: 1.06rem;
}

.bid-form {
  padding: 46px;
  background: var(--paper);
  border-top: 4px solid var(--copper);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.bid-form label {
  display: grid;
  gap: 8px;
}

.bid-form label span {
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.bid-form input,
.bid-form textarea {
  width: 100%;
  padding: 13px 2px;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid #aeadab;
  border-radius: 0;
  outline: none;
}

.bid-form textarea {
  resize: vertical;
}

.bid-form input:focus,
.bid-form textarea:focus {
  border-color: var(--copper-dark);
  box-shadow: 0 1px 0 var(--copper-dark);
}

.full-width {
  grid-column: 1 / -1;
}

.form-note {
  margin: 13px 0 0;
  color: var(--steel);
  font-size: 0.76rem;
}

.site-footer {
  padding-top: 70px;
  color: var(--white);
  background: #080909;
}

.footer-main {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 60px;
  padding-bottom: 54px;
}

.footer-main > p {
  max-width: 390px;
  margin: 0;
  color: #9fa1a3;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--copper-light);
}

.footer-legal {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: #7d8082;
  border-top: 1px solid rgba(255, 255, 255, 0.11);
  font-size: 0.7rem;
}

.mobile-cta {
  display: none;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1050px) {
  .site-nav {
    gap: 18px;
  }

  .site-nav > a:not(.button) {
    font-size: 0.76rem;
  }

  .nav-phone {
    display: none;
  }

  .hero-copy {
    width: min(760px, 76vw);
  }

  .systems-layout,
  .markets-layout,
  .projects-grid,
  .company-layout,
  .contact-layout {
    gap: 56px;
  }

  .section {
    padding-block: 92px;
  }
}

@media (max-width: 820px) {
  :root {
    --shell: min(100% - 32px, 720px);
  }

  .utility-inner {
    justify-content: center;
  }

  .utility-inner span:first-child {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 112px 0 auto;
    min-height: calc(100vh - 112px);
    display: grid;
    align-content: start;
    gap: 0;
    padding: 34px 24px 120px;
    color: var(--white);
    background: rgba(11, 12, 13, 0.99);
    transform: translateX(100%);
    transition: transform 240ms ease;
    overflow-y: auto;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav > a:not(.button) {
    padding: 19px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
    font-size: 1rem;
  }

  .site-nav .nav-phone {
    display: block;
    margin-bottom: 22px;
  }

  .site-nav .button {
    width: 100%;
  }

  .hero {
    min-height: 760px;
  }

  .hero-copy {
    width: min(660px, 88vw);
  }

  .hero h1 {
    font-size: clamp(3rem, 11vw, 5.4rem);
  }

  .hero-proof {
    grid-template-columns: 1fr;
    border-bottom: 0;
  }

  .hero-proof div,
  .hero-proof div + div {
    padding: 12px 0;
    border-left: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  }

  .hero-scroll {
    display: none;
  }

  .service-band-grid {
    grid-template-columns: 1fr 1fr;
    padding-block: 12px;
  }

  .service-band span {
    padding-block: 12px;
  }

  .service-band span:nth-child(3) {
    border-left: 0;
  }

  .section-heading,
  .systems-layout,
  .markets-layout,
  .projects-grid,
  .company-layout,
  .coverage-inner,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .services-grid,
  .details-grid,
  .process-grid {
    grid-template-columns: 1fr 1fr;
  }

  .project-card {
    min-height: 500px;
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .service-card:nth-child(3) {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .details-grid .detail-item:nth-child(3),
  .process-grid li:nth-child(3) {
    border-left: 0;
  }

  .details-grid .detail-item:nth-child(3) {
    grid-column: 1 / -1;
    padding-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
  }

  .process-grid li:nth-child(n + 3) {
    margin-top: 36px;
  }

  .process-grid li:nth-child(3) {
    padding-left: 0;
  }

  .process-grid li:nth-child(3)::before {
    left: 0;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 560px) {
  :root {
    --shell: calc(100% - 28px);
  }

  body {
    padding-bottom: 58px;
  }

  .header-inner {
    min-height: 72px;
  }

  .brand-mark {
    width: 45px;
    height: 39px;
  }

  .brand-copy strong {
    font-size: 1.24rem;
  }

  .brand-copy small {
    font-size: 0.55rem;
  }

  .site-nav {
    inset: 106px 0 auto;
    min-height: calc(100vh - 106px);
  }

  .hero {
    min-height: 760px;
  }

  .hero-image {
    object-position: 55% center;
  }

  .hero-shade {
    background: linear-gradient(90deg, rgba(4, 5, 6, 0.92), rgba(4, 5, 6, 0.64));
  }

  .hero-inner {
    padding-block: 70px 80px;
  }

  .hero-copy {
    width: 100%;
  }

  .hero h1 {
    font-size: clamp(2.85rem, 14vw, 4.3rem);
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
  }

  .service-band-grid,
  .services-grid,
  .details-grid,
  .process-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-card {
    min-height: 430px;
  }

  .project-caption {
    padding: 26px 24px;
  }

  .service-band span + span {
    border-top: 1px solid rgba(255, 255, 255, 0.22);
    border-left: 0;
  }

  .service-card,
  .service-card + .service-card,
  .service-card:nth-child(3) {
    min-height: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .service-card h3 {
    margin-top: 42px;
  }

  .assembly-layer {
    min-height: 100px;
    grid-template-columns: 34px 1fr;
    padding: 0 16px;
  }

  .assembly-layer small {
    grid-column: 2;
    margin-top: -28px;
  }

  .layer-cover,
  .layer-insulation,
  .layer-deck {
    margin-inline: 0;
  }

  .detail-item,
  .detail-item:first-child,
  .details-grid .detail-item:nth-child(3) {
    grid-column: auto;
    padding: 28px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    border-left: 0;
  }

  .process-grid li,
  .process-grid li + li,
  .process-grid li:nth-child(n + 3),
  .process-grid li:nth-child(3) {
    margin-top: 0;
    padding: 28px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.17);
    border-left: 0;
  }

  .process-grid li::before,
  .process-grid li + li::before,
  .process-grid li:nth-child(3)::before {
    top: -4px;
    left: 0;
  }

  .process-grid h3 {
    margin-top: 30px;
  }

  .safety-panel,
  .bid-form {
    padding: 30px 24px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .full-width {
    grid-column: auto;
  }

  .contact-direct strong {
    font-size: 0.92rem;
  }

  .footer-legal {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 18px;
  }

  .mobile-cta {
    position: fixed;
    z-index: 120;
    right: 0;
    bottom: 0;
    left: 0;
    height: 58px;
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    color: var(--white);
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.22);
  }

  .mobile-cta a {
    display: grid;
    place-items: center;
    background: var(--ink);
    font-size: 0.78rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .mobile-cta a:last-child {
    background: var(--copper-dark);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}