:root {
  --elo-blue: #087eb8;
  --elo-blue-bright: #18a6d9;
  --navy: #061928;
  --navy-soft: #0b2738;
  --graphite: #272d31;
  --ink: #14212a;
  --muted: #63717a;
  --line: #dfe6e9;
  --surface: #f5f8f9;
  --white: #ffffff;
  --green: #26a269;
  --orange: #f18a21;
  --red: #e0443e;
  --shadow: 0 28px 80px rgba(11, 39, 56, 0.12);
  --radius-lg: 1.5rem;
  --radius-md: 1rem;
  --wrap: min(1180px, calc(100% - 2.5rem));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, Avenir, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

svg {
  display: block;
}

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

.section {
  padding: clamp(5rem, 9vw, 8.5rem) 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: var(--navy);
  background: var(--white);
  border-radius: 0.5rem;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  transition: background 240ms ease, border-color 240ms ease, box-shadow 240ms ease;
}

.site-header.is-scrolled,
.site-header.menu-active {
  background: rgba(6, 25, 40, 0.96);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(16px);
}

.nav-shell {
  width: var(--wrap);
  min-height: 5.2rem;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.68rem;
  justify-content: center;
  min-width: 13.8rem;
}

.brand-logo {
  width: 3.25rem;
  height: 3.25rem;
  flex: 0 0 auto;
  object-fit: cover;
  background: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.78);
  border-radius: 0.72rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
}

.brand-lockup {
  min-width: 9.8rem;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
}

.brand-name {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  line-height: 1;
  letter-spacing: -0.035em;
}

.brand-name strong {
  color: var(--elo-blue-bright);
  font-size: 1.72rem;
  font-weight: 850;
}

.brand-name span {
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.brand-spectrum {
  display: grid;
  grid-template-columns: 2.8fr 1.8fr 0.8fr 0.8fr 0.8fr;
  gap: 0.18rem;
  width: 100%;
  height: 0.18rem;
  margin-top: 0.34rem;
}

.brand-spectrum i {
  background: var(--elo-blue-bright);
}

.brand-spectrum i:nth-child(2) { background: #737d83; }
.brand-spectrum i:nth-child(3) { background: var(--green); }
.brand-spectrum i:nth-child(4) { background: var(--orange); }
.brand-spectrum i:nth-child(5) { background: var(--red); }

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2.1rem);
  margin-left: auto;
}

.desktop-nav a {
  position: relative;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.88rem;
  font-weight: 600;
  transition: color 180ms ease;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -0.45rem;
  left: 0;
  height: 2px;
  content: "";
  background: var(--elo-blue-bright);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible {
  color: var(--white);
}

.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 0.95rem;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.header-cta svg,
.button svg {
  width: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--elo-blue);
  border-color: var(--elo-blue);
  transform: translateY(-1px);
}

.menu-toggle,
.mobile-menu {
  display: none;
}

.hero {
  position: relative;
  min-height: max(780px, 100svh);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--white);
  background: var(--navy);
}

.hero-media,
.hero-media::after,
.hero-grid {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("assets/hero-engineering.webp");
  background-size: cover;
  background-position: center;
  transform: scale(1.01);
}

.hero-media::after {
  content: "";
  background:
    linear-gradient(90deg, rgba(4, 20, 32, 0.99) 0%, rgba(4, 20, 32, 0.93) 27%, rgba(4, 20, 32, 0.58) 52%, rgba(4, 20, 32, 0.1) 82%),
    linear-gradient(0deg, rgba(4, 20, 32, 0.92) 0%, transparent 38%, rgba(4, 20, 32, 0.28) 100%);
}

.hero-grid {
  opacity: 0.12;
  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: 5rem 5rem;
  mask-image: linear-gradient(90deg, black, transparent 68%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 5.5rem;
  padding-bottom: 8rem;
}

.hero-identity {
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-logo {
  width: 5.5rem;
  height: 5.5rem;
  flex: 0 0 auto;
  object-fit: cover;
  background: var(--white);
  border: 3px solid rgba(255, 255, 255, 0.88);
  border-radius: 1rem;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.26);
}

.hero-identity .eyebrow {
  margin: 0;
}

.eyebrow,
.kicker {
  margin: 0 0 1.4rem;
  color: var(--elo-blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  line-height: 1.35;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.74);
}

.eyebrow span {
  width: 2.7rem;
  height: 2px;
  background: var(--elo-blue-bright);
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3.1rem, 6.4vw, 6.2rem);
  font-weight: 750;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.hero h1 em {
  color: var(--elo-blue-bright);
  font-style: normal;
  font-weight: 400;
}

.hero-lede {
  max-width: 610px;
  margin: 1.8rem 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.2rem;
}

.button {
  min-height: 3.25rem;
  padding: 0.85rem 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  border: 1px solid transparent;
  border-radius: 0.65rem;
  font-size: 0.9rem;
  font-weight: 750;
  line-height: 1.2;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

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

.button-primary {
  color: var(--white);
  background: var(--elo-blue);
  box-shadow: 0 12px 34px rgba(8, 126, 184, 0.28);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #0a91cf;
}

.button-ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.27);
  background: rgba(255, 255, 255, 0.045);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.11);
}

.hero-proof {
  position: absolute;
  z-index: 3;
  bottom: 0;
  right: 0;
  left: 0;
  min-height: 7rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-proof > div {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1.2rem clamp(0.7rem, 2vw, 2rem);
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-proof > div:first-child {
  padding-left: 0;
}

.hero-proof > div:last-child {
  border-right: 0;
}

.hero-proof strong {
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  font-weight: 600;
  letter-spacing: -0.04em;
}

.hero-proof span {
  max-width: 9rem;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.76rem;
  line-height: 1.4;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section-heading h2,
.method-intro h2,
.expertise-copy h2,
.contact-heading h2 {
  margin: 0;
  font-size: clamp(2.35rem, 4.6vw, 4.6rem);
  font-weight: 690;
  letter-spacing: -0.055em;
  line-height: 1.03;
}

.section-heading > p,
.method-intro > p:last-child,
.expertise-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.service-card {
  --accent: var(--elo-blue);
  --card-pad: clamp(1.5rem, 3vw, 2.4rem);
  position: relative;
  min-height: 37rem;
  padding: 0 var(--card-pad) var(--card-pad);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1.55rem;
  background: var(--surface);
  border: 1px solid #e3eaed;
  border-radius: var(--radius-lg);
  transition: transform 280ms ease, box-shadow 280ms ease, border-color 280ms ease;
}

.service-card::before {
  position: absolute;
  z-index: 3;
  top: 0;
  left: var(--card-pad);
  width: 4.2rem;
  height: 0.24rem;
  content: "";
  background: var(--accent);
}

.service-card::after {
  position: absolute;
  top: -7rem;
  right: -7rem;
  width: 15rem;
  height: 15rem;
  content: "";
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-radius: 50%;
  transition: transform 400ms ease;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--accent) 35%, #e3eaed);
  box-shadow: var(--shadow);
}

.service-card:hover::after {
  transform: scale(1.15);
}

.service-card.fire { --accent: var(--red); grid-column: span 5; }
.service-card.climate { --accent: var(--elo-blue); grid-column: span 7; }
.service-card.hospital { --accent: var(--green); grid-column: span 7; }
.service-card.civil { --accent: #59656b; grid-column: span 5; }
.service-card.electric { --accent: var(--orange); grid-column: span 12; }

.service-visual {
  position: relative;
  z-index: 1;
  height: 13.5rem;
  margin: 0 calc(var(--card-pad) * -1);
  overflow: hidden;
  background: #dce5e9;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 28%, #dfe6e9);
}

.service-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 58%, rgba(6, 25, 40, 0.24)),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 12%, transparent), transparent 42%);
}

.service-visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 520ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

.service-card.electric {
  min-height: 41rem;
}

.service-card.electric .service-visual {
  height: 18rem;
}

.service-card.electric .service-visual img {
  object-position: center 38%;
}

.service-card-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.service-number {
  color: #8b989f;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.service-icon {
  width: 3.2rem;
  height: 3.2rem;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--white);
  border-radius: 50%;
  box-shadow: 0 8px 30px rgba(10, 33, 45, 0.08);
}

.service-icon svg {
  width: 1.55rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card-copy {
  position: relative;
  z-index: 1;
  max-width: 36rem;
}

.service-scope {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 1.15rem 0 0;
  display: grid;
  gap: 0.72rem;
  border-top: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line));
  list-style: none;
}

.service-scope li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.service-scope li::before {
  position: absolute;
  top: 0.52rem;
  left: 0;
  width: 0.42rem;
  height: 0.42rem;
  content: "";
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 0.25rem color-mix(in srgb, var(--accent) 11%, transparent);
}

.service-label {
  margin: 0 0 0.65rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.service-card h3 {
  margin: 0;
  font-size: clamp(1.65rem, 2.7vw, 2.45rem);
  font-weight: 670;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.service-card p:not(.service-label) {
  max-width: 37rem;
  margin: 1rem 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.service-tags {
  position: relative;
  z-index: 1;
  margin: auto 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
}

.service-tags li {
  padding: 0.38rem 0.7rem;
  color: #4f5e66;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid #e1e7e9;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 650;
}

.service-tags .management-tag {
  color: color-mix(in srgb, var(--accent) 82%, var(--ink));
  background: color-mix(in srgb, var(--accent) 9%, var(--white));
  border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
}

.management-band {
  position: relative;
  margin-top: 1rem;
  padding: clamp(1.8rem, 4vw, 3rem);
  overflow: hidden;
  display: grid;
  grid-template-columns: auto minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  color: var(--white);
  background: var(--navy);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.management-band::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 0.28rem;
  content: "";
  background: linear-gradient(90deg, var(--green), var(--elo-blue), #59656b, var(--orange), var(--red));
}

.management-index {
  width: 5.2rem;
  height: 5.2rem;
  display: grid;
  place-items: center;
  color: var(--elo-blue-bright);
  border: 1px solid rgba(24, 166, 217, 0.52);
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: 750;
  letter-spacing: -0.04em;
}

.management-band .service-label {
  margin-bottom: 0.6rem;
  color: var(--elo-blue-bright);
}

.management-band h3 {
  margin: 0;
  font-size: clamp(1.65rem, 2.7vw, 2.5rem);
  font-weight: 670;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.management-band p:not(.service-label) {
  max-width: 39rem;
  margin: 1rem 0 0;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.7;
}

.management-band ul {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem 1.2rem;
  list-style: none;
}

.management-band li {
  position: relative;
  padding: 0.72rem 0 0.72rem 1.05rem;
  color: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  font-size: 0.84rem;
  line-height: 1.45;
}

.management-band li::before {
  position: absolute;
  top: 1.15rem;
  left: 0;
  width: 0.38rem;
  height: 0.38rem;
  content: "";
  background: var(--orange);
  border-radius: 50%;
}

.method {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.method::after {
  position: absolute;
  top: -20rem;
  right: -18rem;
  width: 42rem;
  height: 42rem;
  content: "";
  border: 1px solid rgba(24, 166, 217, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 0 7rem rgba(24, 166, 217, 0.025), 0 0 0 14rem rgba(24, 166, 217, 0.018);
}

.method-intro {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr);
  gap: clamp(2rem, 6vw, 7rem);
  align-items: end;
}

.method-intro .kicker {
  grid-column: 1 / -1;
  margin-bottom: -0.5rem;
}

.kicker-light {
  color: var(--elo-blue-bright);
}

.method-intro > p:last-child {
  color: rgba(255, 255, 255, 0.6);
}

.process {
  position: relative;
  z-index: 1;
  margin: clamp(4rem, 7vw, 6.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  list-style: none;
}

.process::before {
  position: absolute;
  top: 1.45rem;
  right: 1rem;
  left: 1rem;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, var(--elo-blue-bright), rgba(255, 255, 255, 0.16));
}

.process li {
  position: relative;
  padding-right: clamp(1rem, 2.5vw, 2rem);
}

.process li > span {
  position: relative;
  z-index: 1;
  width: 2.9rem;
  height: 2.9rem;
  display: grid;
  place-items: center;
  color: var(--elo-blue-bright);
  background: var(--navy);
  border: 1px solid rgba(24, 166, 217, 0.65);
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 800;
}

.process h3 {
  margin: 1.6rem 0 0.55rem;
  font-size: 1.08rem;
  font-weight: 650;
}

.process p {
  margin: 0;
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.88rem;
  line-height: 1.65;
}

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

.expertise-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(26rem, 1.08fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}

.expertise-copy {
  position: sticky;
  top: 8rem;
}

.expertise-copy > p {
  margin-top: 1.5rem;
}

.principle {
  margin-top: 2.5rem;
  padding: 1.5rem 0 0 1.4rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  border-top: 1px solid var(--line);
}

.principle > span {
  color: var(--elo-blue);
  font-family: Georgia, serif;
  font-size: 3.2rem;
  line-height: 0.85;
}

.principle p {
  margin: 0;
  color: #4b5961;
  font-size: 0.95rem;
  font-style: italic;
  line-height: 1.65;
}

.expertise-list {
  border-top: 1px solid var(--line);
}

.expertise-list details {
  border-bottom: 1px solid var(--line);
}

.expertise-list summary {
  min-height: 5.8rem;
  padding: 1.2rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  list-style: none;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 650;
  letter-spacing: -0.02em;
}

.expertise-list summary::-webkit-details-marker {
  display: none;
}

.expertise-list summary > span {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.expertise-list summary svg {
  width: 1.2rem;
  flex: 0 0 auto;
  fill: none;
  stroke: #829098;
  stroke-width: 1.5;
  transition: transform 220ms ease;
}

.expertise-list details[open] summary svg {
  transform: rotate(45deg);
}

.dot {
  width: 0.58rem;
  height: 0.58rem;
  display: inline-block;
  border-radius: 50%;
}

.dot-red { background: var(--red); }
.dot-blue { background: var(--elo-blue); }
.dot-green { background: var(--green); }
.dot-graphite { background: #59656b; }
.dot-orange { background: var(--orange); }

.detail-content {
  max-width: 39rem;
  padding: 0 3.2rem 1.7rem 1.48rem;
}

.detail-content p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.contact {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: var(--elo-blue);
}

.contact::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.22) 1px, transparent 1px);
  background-size: 4rem 4rem;
}

.contact-orbit {
  position: absolute;
  right: -10rem;
  bottom: -18rem;
  width: 38rem;
  height: 38rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem rgba(255, 255, 255, 0.03), 0 0 0 10rem rgba(255, 255, 255, 0.025);
}

.contact-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(22rem, 0.8fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
}

.contact-heading .kicker {
  color: rgba(255, 255, 255, 0.72);
}

.contact-heading h2 {
  max-width: 48rem;
}

.contact-panel {
  padding: clamp(1.5rem, 3vw, 2.3rem);
  background: rgba(5, 48, 72, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.contact-panel > p {
  margin: 0 0 1.6rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1rem;
  line-height: 1.7;
}

.button-white {
  width: 100%;
  color: var(--navy);
  background: var(--white);
}

.button-white:hover,
.button-white:focus-visible {
  background: #eff8fb;
}

.contact-data {
  margin: 2rem 0 0;
}

.contact-data > div {
  padding: 0.9rem 0;
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.contact-data dt {
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.75rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contact-data dd {
  margin: 0;
  color: var(--white);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.contact-data a:hover,
.contact-data a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.site-footer {
  padding: 4rem 0 1.5rem;
  color: rgba(255, 255, 255, 0.58);
  background: #04131f;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 0.6fr;
  gap: clamp(2.5rem, 7vw, 7rem);
  padding-bottom: 3rem;
}

.brand-footer {
  width: max-content;
}

.footer-grid > div:first-child > p {
  margin: 1.2rem 0 0;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.92rem;
}

.footer-label {
  margin: 0 0 1rem;
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-grid address {
  font-size: 0.88rem;
  font-style: normal;
  line-height: 1.8;
}

.footer-grid > div:last-child {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.65rem;
}

.footer-grid > div:last-child .footer-label {
  margin-bottom: 0.3rem;
}

.footer-grid a:hover,
.footer-grid a:focus-visible,
.footer-bottom a:hover,
.footer-bottom a:focus-visible {
  color: var(--white);
}

.footer-bottom {
  padding-top: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.78rem;
}

.footer-bottom p {
  margin: 0;
}

.floating-whatsapp {
  position: fixed;
  z-index: 90;
  right: 1.2rem;
  bottom: 1.2rem;
  width: 3.5rem;
  height: 3.5rem;
  display: grid;
  place-items: center;
  color: var(--white);
  background: #1faa59;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  box-shadow: 0 12px 36px rgba(7, 50, 31, 0.28);
  transition: transform 180ms ease, background 180ms ease;
}

.floating-whatsapp:hover,
.floating-whatsapp:focus-visible {
  background: #168c49;
  transform: translateY(-3px) scale(1.03);
}

.floating-whatsapp svg {
  width: 1.65rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.55;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 650ms ease, transform 650ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

:focus-visible {
  outline: 3px solid rgba(24, 166, 217, 0.68);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    width: 2.8rem;
    height: 2.8rem;
    padding: 0;
    display: grid;
    place-content: center;
    gap: 0.42rem;
    color: var(--white);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    cursor: pointer;
  }

  .menu-toggle span {
    width: 1.15rem;
    height: 1px;
    display: block;
    background: currentColor;
    transition: transform 180ms ease;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(0.225rem) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-0.225rem) rotate(-45deg);
  }

  .mobile-menu {
    position: fixed;
    inset: 5.2rem 0 auto;
    height: calc(100svh - 5.2rem);
    padding: 2rem max(1.25rem, calc((100vw - 1180px) / 2));
    display: flex;
    flex-direction: column;
    gap: 0;
    color: var(--white);
    background: var(--navy);
  }

  .mobile-menu[hidden] {
    display: none;
  }

  .mobile-menu > a:not(.button) {
    padding: 1.05rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 1.25rem;
    font-weight: 600;
  }

  .mobile-menu .button {
    margin-top: 2rem;
  }

  .hero {
    min-height: max(720px, 100svh);
  }

  .hero-media {
    background-position: 58% center;
  }

  .hero-media::after {
    background:
      linear-gradient(90deg, rgba(4, 20, 32, 0.98) 0%, rgba(4, 20, 32, 0.88) 44%, rgba(4, 20, 32, 0.38) 100%),
      linear-gradient(0deg, rgba(4, 20, 32, 0.95) 0%, transparent 52%);
  }

  .hero-content {
    padding-bottom: 9rem;
  }

  .section-heading,
  .method-intro,
  .expertise-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .method-intro,
  .contact-layout {
    gap: 2rem;
  }

  .management-band {
    grid-template-columns: auto 1fr;
  }

  .management-band ul {
    grid-column: 1 / -1;
  }

  .service-card.fire,
  .service-card.climate,
  .service-card.hospital,
  .service-card.civil {
    grid-column: span 6;
  }

  .service-card.electric {
    grid-column: span 12;
  }

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

  .process::before {
    top: 1.5rem;
    bottom: 1.5rem;
    left: 1.45rem;
    width: 1px;
    height: auto;
    background: linear-gradient(var(--elo-blue-bright), rgba(255, 255, 255, 0.16));
  }

  .process li {
    min-height: 7.4rem;
    padding: 0 0 1.4rem 5rem;
  }

  .process li > span {
    position: absolute;
    top: 0;
    left: 0;
  }

  .process h3 {
    margin-top: 0;
  }

  .expertise-copy {
    position: static;
  }
}

@media (max-width: 680px) {
  :root {
    --wrap: min(100% - 2rem, 1180px);
  }

  .section {
    padding: 4.5rem 0;
  }

  .nav-shell {
    min-height: 4.6rem;
  }

  .brand {
    min-width: 0;
    gap: 0.5rem;
  }

  .brand-logo {
    width: 2.65rem;
    height: 2.65rem;
    border-radius: 0.58rem;
  }

  .brand-lockup {
    min-width: 8.5rem;
  }

  .brand-name strong {
    font-size: 1.45rem;
  }

  .brand-name span {
    font-size: 0.62rem;
  }

  .mobile-menu {
    inset: 4.6rem 0 auto;
    height: calc(100svh - 4.6rem);
  }

  .hero {
    min-height: max(760px, 100svh);
  }

  .hero-media {
    background-position: 64% center;
  }

  .hero-media::after {
    background:
      linear-gradient(90deg, rgba(4, 20, 32, 0.96), rgba(4, 20, 32, 0.72)),
      linear-gradient(0deg, rgba(4, 20, 32, 0.99) 2%, rgba(4, 20, 32, 0.28) 68%);
  }

  .hero-grid {
    background-size: 3.5rem 3.5rem;
  }

  .hero-content {
    padding-top: 5.5rem;
    padding-bottom: 11rem;
  }

  .hero-logo {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 0.82rem;
  }

  .hero-identity {
    gap: 0.75rem;
  }

  .hero h1 {
    font-size: clamp(2.75rem, 13.8vw, 4.5rem);
  }

  .hero-lede {
    max-width: 31rem;
    font-size: 1rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-proof {
    min-height: 8.6rem;
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-proof > div {
    padding: 0.9rem 0.5rem;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
  }

  .hero-proof > div:first-child {
    padding-left: 0;
  }

  .hero-proof strong {
    font-size: 1rem;
  }

  .hero-proof span {
    max-width: 7.5rem;
    font-size: 0.65rem;
  }

  .section-heading {
    grid-template-columns: 1fr;
  }

  .section-heading h2,
  .method-intro h2,
  .expertise-copy h2,
  .contact-heading h2 {
    font-size: clamp(2.15rem, 10vw, 3.35rem);
  }

  .service-card.fire,
  .service-card.climate,
  .service-card.hospital,
  .service-card.civil,
  .service-card.electric {
    grid-column: 1 / -1;
    min-height: 0;
  }

  .service-visual,
  .service-card.electric .service-visual {
    height: 14rem;
  }

  .management-band {
    grid-template-columns: 1fr;
  }

  .management-index {
    width: 4.4rem;
    height: 4.4rem;
  }

  .management-band ul {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .expertise-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .expertise-list summary {
    min-height: 5rem;
    font-size: 1.05rem;
  }

  .detail-content {
    padding-left: 1.45rem;
    padding-right: 0;
  }

  .contact-panel {
    padding: 1.35rem;
  }

  .contact-data > div {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.2rem;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .floating-whatsapp {
    right: 0.8rem;
    bottom: 0.8rem;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

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