:root {
  --teal: #00957d;
  --teal-dark: #006d5e;
  --charcoal: #242422;
  --ink: #111312;
  --concrete: #e8e8e3;
  --paper: #ffffff;
  --muted: #6f7571;
  --line: #d8dcd8;
  --signal: #d9a441;
  --shadow: 0 24px 70px rgba(17, 19, 18, 0.16);
  --radius: 8px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

section {
  scroll-margin-top: 88px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 52px);
  color: var(--paper);
  transition: background 180ms ease, box-shadow 180ms ease, padding 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(17, 19, 18, 0.94);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.18);
}

.brand img {
  width: clamp(150px, 17vw, 245px);
  height: auto;
}

.site-nav {
  justify-self: end;
  display: flex;
  gap: clamp(18px, 2.5vw, 34px);
  font-size: 0.94rem;
  font-weight: 700;
  text-transform: uppercase;
}

.site-nav a {
  opacity: 0.86;
}

.site-nav a:hover {
  color: var(--teal);
  opacity: 1;
}

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
}

.header-cta {
  background: var(--teal);
  color: var(--paper);
}

.header-cta:hover,
.btn-primary:hover {
  background: var(--teal-dark);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius);
  background: transparent;
  color: var(--paper);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92vh;
  min-height: 92svh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--paper);
}

.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg {
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(10, 13, 12, 0.92) 0%, rgba(10, 13, 12, 0.72) 38%, rgba(10, 13, 12, 0.22) 100%),
    linear-gradient(0deg, rgba(10, 13, 12, 0.38), transparent 42%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(var(--max-width), calc(100% - 36px));
  margin: 0 auto;
  padding: 132px 0 58px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 7.5rem);
  line-height: 0.94;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-copy {
  max-width: 680px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn-primary {
  background: var(--teal);
  color: var(--paper);
}

.btn-secondary {
  border-color: rgba(255, 255, 255, 0.48);
  color: var(--paper);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--paper);
  background: rgba(255, 255, 255, 0.16);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(780px, 100%);
  margin-top: 58px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(12px);
}

.hero-metrics div {
  min-height: 104px;
  padding: 22px;
  background: rgba(17, 19, 18, 0.58);
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics strong {
  font-size: 1.04rem;
  text-transform: uppercase;
}

.hero-metrics span {
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.92rem;
}

.section {
  width: min(var(--max-width), calc(100% - 36px));
  margin: 0 auto;
  padding: 88px 0;
}

.section-heading {
  max-width: 760px;
}

.section-heading h2,
.contact h2 {
  margin: 0;
  color: var(--charcoal);
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.03;
  letter-spacing: 0;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.72fr);
  gap: clamp(30px, 6vw, 92px);
  align-items: end;
  border-bottom: 1px solid var(--line);
}

.intro > p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.services {
  padding-top: 76px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 38px;
}

.service-card {
  min-width: 0;
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 149, 125, 0.34);
  box-shadow: var(--shadow);
}

.service-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: var(--paper);
  background: var(--charcoal);
  font-weight: 900;
}

.service-card h3 {
  margin: 28px 0 12px;
  color: var(--charcoal);
  font-size: 1.28rem;
  line-height: 1.16;
}

.service-card p {
  margin: 0;
  color: var(--muted);
}

.portfolio {
  background: var(--charcoal);
  color: var(--paper);
}

.portfolio .section {
  padding-bottom: 40px;
}

.portfolio h2 {
  color: var(--paper);
}

.portfolio-grid {
  width: min(var(--max-width), calc(100% - 36px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.95fr 0.95fr;
  gap: 16px;
  padding-bottom: 92px;
}

.project {
  position: relative;
  min-width: 0;
  min-height: 460px;
  overflow: hidden;
  border-radius: var(--radius);
  background: #000;
}

.project:first-child {
  min-height: 560px;
}

.project img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.82;
  transition: transform 240ms ease, opacity 240ms ease;
}

.project:hover img {
  transform: scale(1.035);
  opacity: 0.96;
}

.project div {
  position: absolute;
  inset: auto 0 0;
  padding: 26px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.86), transparent);
}

.project p {
  margin: 0 0 8px;
  color: var(--teal);
  font-weight: 900;
  text-transform: uppercase;
}

.project h3 {
  margin: 0;
  max-width: 420px;
  font-size: 1.45rem;
  line-height: 1.13;
}

.advantages {
  padding-bottom: 100px;
}

.advantage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.56fr);
  gap: 22px;
  margin-top: 36px;
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.advantage-list div,
.quote-panel {
  border-radius: var(--radius);
  padding: 28px;
}

.advantage-list div {
  background: var(--concrete);
}

.advantage-list h3,
.quote-panel p {
  margin: 0;
  color: var(--charcoal);
  font-size: 1.2rem;
  line-height: 1.16;
}

.advantage-list p {
  margin: 14px 0 0;
  color: var(--muted);
}

.quote-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
  background: var(--teal);
  color: var(--paper);
}

.quote-panel img {
  width: 86px;
  height: 86px;
}

.quote-panel p {
  color: var(--paper);
  font-size: 1.7rem;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(330px, 0.65fr);
  gap: clamp(26px, 5vw, 70px);
  padding: 90px max(18px, calc((100vw - var(--max-width)) / 2));
  background: var(--concrete);
}

.contact-info,
.contact-form {
  min-width: 0;
}

.contact-info > p:not(.eyebrow) {
  max-width: 610px;
  color: var(--muted);
  font-size: 1.06rem;
}

.contact-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 30px 0 0;
  list-style: none;
}

.contact-list li {
  padding: 15px 18px;
  border-left: 4px solid var(--teal);
  background: var(--paper);
  overflow-wrap: anywhere;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--charcoal);
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 14px;
  color: var(--ink);
  background: #fbfbf8;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 3px solid rgba(0, 149, 125, 0.16);
  border-color: var(--teal);
}

.contact-form .btn {
  width: 100%;
  border: 0;
}

.site-footer {
  display: grid;
  justify-items: center;
  gap: 12px;
  padding: 42px 18px;
  text-align: center;
  color: rgba(255, 255, 255, 0.72);
  background: var(--ink);
}

.site-footer img {
  width: min(260px, 72vw);
}

.site-footer p,
.site-footer span {
  margin: 0;
}

@media (max-width: 1100px) {
  .site-header {
    gap: 18px;
  }

  .site-nav {
    gap: 18px;
    font-size: 0.88rem;
  }

  .service-grid,
  .advantage-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portfolio-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project:first-child {
    grid-column: 1 / -1;
    min-height: 500px;
  }
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: auto auto;
    align-items: center;
  }

  .brand {
    z-index: 2;
  }

  .nav-toggle {
    display: block;
    justify-self: end;
    z-index: 2;
  }

  .site-nav {
    position: absolute;
    inset: 100% 18px auto;
    display: none;
    grid-column: 1 / -1;
    padding: 16px;
    border-radius: var(--radius);
    background: rgba(17, 19, 18, 0.98);
    box-shadow: 0 22px 40px rgba(0, 0, 0, 0.2);
  }

  .site-header.is-open .site-nav {
    display: grid;
    gap: 0;
  }

  .site-nav a {
    padding: 15px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .header-cta {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(10, 13, 12, 0.94), rgba(10, 13, 12, 0.72)),
      linear-gradient(0deg, rgba(10, 13, 12, 0.54), transparent 48%);
  }

  .hero-content {
    padding: 128px 0 54px;
  }

  .hero-metrics,
  .intro,
  .service-grid,
  .portfolio-grid,
  .advantage-layout,
  .advantage-list,
  .contact {
    grid-template-columns: 1fr;
  }

  .project,
  .project:first-child {
    grid-column: auto;
    min-height: 420px;
  }

  .contact {
    padding-inline: 18px;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 12px 16px;
  }

  .brand img {
    width: min(148px, 58vw);
  }

  .nav-toggle {
    width: 42px;
    height: 42px;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    width: min(100% - 32px, var(--max-width));
    padding: 112px 0 44px;
  }

  .hero h1 {
    font-size: 3rem;
    line-height: 0.98;
  }

  .hero-copy {
    margin-top: 22px;
    font-size: 1rem;
  }

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

  .hero-metrics {
    margin-top: 34px;
  }

  .hero-metrics div {
    min-height: auto;
    padding: 18px;
  }

  .section {
    width: min(100% - 32px, var(--max-width));
    padding: 64px 0;
  }

  .section-heading h2,
  .contact h2 {
    font-size: 2rem;
    line-height: 1.08;
  }

  .service-card {
    min-height: auto;
    padding: 22px;
  }

  .portfolio-grid {
    width: min(100% - 32px, var(--max-width));
    padding-bottom: 64px;
  }

  .project,
  .project:first-child {
    min-height: 360px;
  }

  .project div {
    padding: 22px;
  }

  .project h3 {
    font-size: 1.2rem;
  }

  .quote-panel {
    min-height: 230px;
  }

  .quote-panel p {
    font-size: 1.35rem;
  }

  .contact {
    padding-top: 68px;
    padding-bottom: 68px;
  }

  .contact-form {
    padding: 20px;
  }
}

@media (max-width: 420px) {
  .hero h1 {
    font-size: 2.55rem;
  }

  .eyebrow {
    font-size: 0.76rem;
  }

  .project,
  .project:first-child {
    min-height: 330px;
  }

  .contact-list li {
    padding: 13px 14px;
  }
}