:root {
  --navy: #062b55;
  --navy-deep: #03192f;
  --red: #c80735;
  --red-dark: #950625;
  --ink: #161b22;
  --muted: #5d6673;
  --line: #d8dde5;
  --steel: #eef2f6;
  --white: #ffffff;
  --concrete: #d5d4cf;
  --shadow: 0 24px 70px rgba(3, 25, 47, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
  background: var(--white);
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 22px;
  align-items: center;
  min-height: 78px;
  padding: 12px clamp(18px, 4vw, 54px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(216, 221, 229, 0.75);
  backdrop-filter: blur(14px);
}

.brand img {
  width: auto;
  height: clamp(56px, 6vw, 78px);
}

.site-nav {
  justify-self: end;
  display: flex;
  gap: clamp(14px, 2vw, 28px);
  align-items: center;
  color: var(--navy-deep);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  content: "";
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

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

.header-call {
  padding: 11px 15px;
  color: var(--white);
  font-weight: 800;
  background: var(--red);
  border-radius: 4px;
  box-shadow: 0 10px 26px rgba(200, 7, 53, 0.22);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: var(--navy);
  border: 0;
  border-radius: 4px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--white);
}

.hero {
  position: relative;
  display: grid;
  min-height: 760px;
  padding: 170px clamp(20px, 5vw, 70px) 46px;
  overflow: hidden;
  color: var(--white);
}

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

.hero-media {
  background-image: url("assets/commercial-concrete-hero.png");
  background-position: center;
  background-size: cover;
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(3, 25, 47, 0.94) 0%, rgba(3, 25, 47, 0.76) 43%, rgba(3, 25, 47, 0.18) 100%),
    linear-gradient(0deg, rgba(3, 25, 47, 0.7) 0%, rgba(3, 25, 47, 0) 44%);
}

.hero-content {
  position: relative;
  z-index: 2;
  align-self: center;
  max-width: 820px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffced8;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(2.55rem, 6vw, 5.75rem);
  line-height: 0.94;
  letter-spacing: 0;
  max-width: 900px;
}

h2 {
  margin-bottom: 18px;
  color: var(--navy-deep);
  font-size: clamp(2rem, 4vw, 3.55rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  color: var(--navy-deep);
  font-size: 1.08rem;
}

.hero p {
  max-width: 670px;
  margin-bottom: 30px;
  color: #edf4fb;
  font-size: clamp(1.05rem, 1.5vw, 1.28rem);
}

.hero-actions,
.contact-methods {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 19px;
  font-weight: 900;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
}

.button.primary {
  color: var(--white);
  background: var(--red);
}

.button.primary:hover,
.header-call:hover {
  background: var(--red-dark);
}

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.58);
}

.hero-panel {
  position: relative;
  z-index: 2;
  align-self: end;
  justify-self: end;
  display: grid;
  gap: 2px;
  width: min(100%, 330px);
  padding: 22px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--navy-deep);
  border-top: 5px solid var(--red);
  box-shadow: var(--shadow);
}

.hero-panel strong,
.proof-strip strong {
  font-size: 0.95rem;
  text-transform: uppercase;
}

.hero-panel a {
  margin-top: 8px;
  color: var(--red);
  font-weight: 900;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}

.proof-strip div {
  padding: 28px clamp(18px, 4vw, 48px);
  background: var(--white);
}

.proof-strip span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.section {
  padding: clamp(72px, 10vw, 128px) clamp(20px, 5vw, 70px);
}

.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1.2fr);
  gap: clamp(34px, 6vw, 80px);
  align-items: start;
}

.section-copy {
  position: sticky;
  top: 110px;
}

.section-copy p,
.section-heading p,
.quality-copy p,
.contact-copy p {
  color: var(--muted);
  font-size: 1.05rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.project-grid article,
.service-list article,
.timeline article,
.team-grid a {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.project-grid article {
  min-height: 226px;
  background:
    linear-gradient(135deg, rgba(6, 43, 85, 0.05), rgba(200, 7, 53, 0.04)),
    var(--white);
}

.project-grid span,
.timeline span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  color: var(--white);
  font-weight: 900;
  background: var(--navy);
  border-radius: 50%;
}

.project-grid p,
.service-list p,
.timeline p,
.team-grid small {
  margin-bottom: 0;
  color: var(--muted);
}

.services,
.process {
  background: var(--steel);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 36px;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-list article {
  min-height: 230px;
  border-top: 4px solid var(--red);
}

.quality {
  display: grid;
  grid-template-columns: minmax(300px, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(34px, 6vw, 76px);
  align-items: center;
  color: var(--white);
  background: var(--navy-deep);
}

.quality h2,
.quality h3 {
  color: var(--white);
}

.quality-copy p {
  color: #dbe7f2;
}

.quality-visual {
  min-height: 460px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0)),
    linear-gradient(180deg, #d9d8d2, #9fa6ad);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  box-shadow: var(--shadow);
}

.slab-lines {
  width: 100%;
  height: 100%;
  min-height: 460px;
  background:
    linear-gradient(28deg, transparent 0 45%, rgba(6, 43, 85, 0.38) 45% 46%, transparent 46% 100%),
    linear-gradient(154deg, transparent 0 47%, rgba(200, 7, 53, 0.35) 47% 48%, transparent 48% 100%),
    repeating-linear-gradient(90deg, rgba(3, 25, 47, 0.18) 0 2px, transparent 2px 92px),
    repeating-linear-gradient(0deg, rgba(3, 25, 47, 0.12) 0 2px, transparent 2px 92px);
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 26px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
}

.check-list li::before {
  position: absolute;
  top: 0.12em;
  left: 0;
  color: var(--red);
  content: "■";
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.timeline span {
  background: var(--red);
}

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

.team-grid a {
  display: grid;
  gap: 4px;
  transition:
    border-color 180ms ease,
    transform 180ms ease,
    box-shadow 180ms ease;
}

.team-grid a:hover {
  border-color: rgba(200, 7, 53, 0.55);
  box-shadow: 0 18px 44px rgba(3, 25, 47, 0.09);
  transform: translateY(-2px);
}

.team-grid span {
  color: var(--red);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.team-grid strong {
  color: var(--navy-deep);
  font-size: 1.1rem;
}

.contact {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(34px, 6vw, 76px);
  padding: clamp(72px, 10vw, 128px) clamp(20px, 5vw, 70px);
  background:
    linear-gradient(90deg, rgba(3, 25, 47, 0.95), rgba(6, 43, 85, 0.92)),
    var(--navy);
  color: var(--white);
}

.contact h2 {
  color: var(--white);
}

.contact-copy p {
  color: #dbe7f2;
}

.contact-methods {
  margin-top: 26px;
}

.contact-methods a,
.contact-methods span {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 4px;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: clamp(20px, 4vw, 34px);
  background: var(--white);
  color: var(--ink);
  border-radius: 6px;
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 7px;
  color: var(--navy-deep);
  font-size: 0.85rem;
  font-weight: 900;
}

input,
select,
textarea {
  width: 100%;
  padding: 13px 12px;
  color: var(--ink);
  font: inherit;
  background: var(--steel);
  border: 1px solid transparent;
  border-radius: 4px;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(200, 7, 53, 0.2);
  border-color: var(--red);
}

textarea {
  resize: vertical;
}

.full,
.contact-form button,
.form-note {
  grid-column: 1 / -1;
}

.form-note {
  min-height: 24px;
  margin: 0;
  color: var(--muted);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 34px clamp(20px, 5vw, 70px);
  background: #07111f;
  color: #dbe7f2;
}

.site-footer img {
  width: 210px;
  filter: brightness(0) invert(1);
}

.site-footer p {
  max-width: 430px;
  margin: 14px 0 0;
}

.site-footer div:last-child {
  display: grid;
  gap: 3px;
  text-align: right;
}

.site-footer a {
  color: #ffffff;
  font-weight: 900;
}

@media (max-width: 1080px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .header-call {
    display: none;
  }

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

  .site-nav {
    position: absolute;
    top: 100%;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
  }

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

@media (max-width: 820px) {
  .hero {
    min-height: 720px;
    padding-top: 140px;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(3, 25, 47, 0.92) 0%, rgba(3, 25, 47, 0.72) 62%, rgba(3, 25, 47, 0.9) 100%),
      rgba(3, 25, 47, 0.35);
  }

  .hero-panel {
    justify-self: start;
    margin-top: 30px;
  }

  .proof-strip,
  .split,
  .quality,
  .contact,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .section-copy {
    position: static;
  }

  .project-grid,
  .service-list,
  .timeline,
  .team-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .quality-visual,
  .slab-lines {
    min-height: 330px;
  }

  .site-footer div:last-child {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .site-header {
    min-height: 70px;
    padding: 10px 14px;
  }

  .brand img {
    height: 72px;
  }

  .hero {
    min-height: 700px;
    padding: 132px 18px 28px;
  }

  h1 {
    font-size: 2.55rem;
  }

  h2 {
    font-size: 2rem;
  }

  .button {
    width: 100%;
  }

  .section,
  .contact {
    padding-right: 18px;
    padding-left: 18px;
  }
}