:root {
  --color-key-lime: #d9c126;
  --color-concord: #7c7a79;
  --color-abbey: #4a4d4f;
  --color-school-bus-yellow: #ffd900;
  --color-black: #000000;
  --color-white: #ffffff;
  --color-ink: #141414;
  --color-surface: #f6f2e8;
  --color-surface-strong: #eee8d9;
  --color-surface-dark: #151617;
  --color-border: rgba(124, 122, 121, 0.28);
  --shadow-panel: 0 28px 80px rgba(0, 0, 0, 0.22);
  --font-sans: Arial, Helvetica, sans-serif;
  --section-inline-padding: clamp(1rem, 4vw, 3rem);
  --section-block-padding: clamp(4.5rem, 8vw, 8rem);
  --max-content-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-surface);
  font-family: var(--font-sans);
  line-height: 1.55;
}

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

a {
  color: inherit;
}

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

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem var(--section-inline-padding);
  color: var(--color-white);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.82), rgba(0, 0, 0, 0.18));
}

.brand-link {
  color: var(--color-school-bus-yellow);
  font-weight: 900;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-navigation {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.92rem;
}

.site-navigation a {
  text-decoration: none;
}

.site-navigation a:hover,
.site-navigation a:focus-visible {
  color: var(--color-school-bus-yellow);
}

.menu-toggle {
  display: none;
  color: var(--color-white);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
}

.section-shell {
  width: min(100%, var(--max-content-width));
  margin: 0 auto;
  padding-inline: var(--section-inline-padding);
}

.hero-section {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  color: var(--color-white);
  background: var(--color-black);
}

.hero-section::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.78), rgba(0, 0, 0, 0.18) 56%, rgba(0, 0, 0, 0.7)),
    linear-gradient(180deg, rgba(0, 0, 0, 0.24), rgba(0, 0, 0, 0.78));
}

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

.hero-media img {
  object-fit: cover;
  opacity: 0.86;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(310px, 0.42fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: end;
  min-height: 100vh;
  padding-top: 9rem;
  padding-bottom: clamp(3rem, 7vw, 6rem);
}

.hero-copy {
  max-width: 860px;
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--color-school-bus-yellow);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

h1,
h2 {
  line-height: 0.96;
  letter-spacing: -0.06em;
}

h1 {
  margin-bottom: 1.4rem;
  font-size: clamp(3.2rem, 8.8vw, 7.8rem);
}

h2 {
  margin-bottom: 1.3rem;
  font-size: clamp(2.25rem, 5.8vw, 5rem);
}

h3 {
  margin-bottom: 0.85rem;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.05;
}

.hero-summary,
.section-summary {
  max-width: 700px;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1rem, 2vw, 1.22rem);
}

.section-summary {
  color: var(--color-abbey);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.75rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 0;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.button-primary {
  color: var(--color-black);
  background: var(--color-school-bus-yellow);
}

.button-secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.36);
  background: rgba(0, 0, 0, 0.22);
}

.quote-card {
  padding: clamp(1.25rem, 3vw, 2rem);
  border-top: 5px solid var(--color-school-bus-yellow);
  background: rgba(20, 20, 20, 0.84);
  box-shadow: var(--shadow-panel);
}

.quote-card h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.quote-card p {
  color: rgba(255, 255, 255, 0.72);
}

.quote-label {
  margin-bottom: 0.75rem;
  color: var(--color-school-bus-yellow) !important;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.text-link {
  color: var(--color-school-bus-yellow);
  font-weight: 900;
  text-decoration: none;
}

.text-link:hover,
.text-link:focus-visible {
  text-decoration: underline;
}

.service-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: -1px;
  color: var(--color-white);
  background: var(--color-surface-dark);
}

.service-strip article {
  min-height: 260px;
  padding: clamp(1.25rem, 3vw, 2.3rem);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.service-strip span,
.card-number {
  display: inline-block;
  margin-bottom: 1.2rem;
  color: var(--color-school-bus-yellow);
  font-weight: 900;
}

.service-strip h2 {
  font-size: clamp(1.5rem, 3vw, 2.6rem);
}

.service-strip p {
  color: rgba(255, 255, 255, 0.68);
}

.content-section {
  padding-block: var(--section-block-padding);
}

.split-grid,
.contact-grid,
.process-grid,
.section-heading-row {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.about-section {
  background: var(--color-surface);
}

.image-stack {
  position: relative;
  min-height: 620px;
}

.image-primary,
.image-secondary {
  position: absolute;
  object-fit: cover;
  box-shadow: var(--shadow-panel);
}

.image-primary {
  top: 0;
  left: 0;
  width: 72%;
  height: 88%;
}

.image-secondary {
  right: 0;
  bottom: 0;
  width: 52%;
  height: 42%;
  border: 12px solid var(--color-surface);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.stats-grid div {
  padding-top: 1rem;
  border-top: 2px solid var(--color-school-bus-yellow);
}

.stats-grid strong {
  display: block;
  color: var(--color-black);
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1;
}

.stats-grid span {
  display: block;
  margin-top: 0.45rem;
  color: var(--color-abbey);
  font-weight: 800;
}

.services-section,
.process-section {
  background: var(--color-white);
}

.section-heading-row {
  align-items: end;
  margin-bottom: 2rem;
}

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

.service-card {
  min-height: 320px;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.service-card p {
  color: var(--color-abbey);
}

.featured-card {
  color: var(--color-white);
  background: var(--color-abbey);
}

.featured-card p {
  color: rgba(255, 255, 255, 0.72);
}

.projects-section {
  color: var(--color-white);
  background: var(--color-surface-dark);
}

.project-list {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  margin-top: 3rem;
}

.project-item {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.project-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.project-item p {
  margin-bottom: 0.6rem;
  color: var(--color-school-bus-yellow);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-item h3 {
  font-size: clamp(2rem, 4.8vw, 4rem);
}

.project-item-reverse img {
  order: 2;
}

.process-grid {
  align-items: start;
}

.process-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: process;
}

.process-list li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-abbey);
  counter-increment: process;
}

.process-list li::before {
  content: counter(process, decimal-leading-zero);
  color: var(--color-school-bus-yellow);
  font-weight: 900;
}

.process-list strong {
  display: block;
  color: var(--color-black);
  font-size: 1.25rem;
}

.process-list span {
  display: block;
  margin-top: 0.2rem;
}

.coverage-section {
  position: relative;
  min-height: 580px;
  overflow: hidden;
  color: var(--color-white);
  background: var(--color-black);
}

.coverage-section img {
  width: 100%;
  min-height: 580px;
  object-fit: cover;
  opacity: 0.7;
}

.coverage-card {
  position: absolute;
  right: var(--section-inline-padding);
  bottom: var(--section-inline-padding);
  width: min(520px, calc(100% - 2rem));
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: rgba(0, 0, 0, 0.78);
  border-top: 5px solid var(--color-school-bus-yellow);
}

.coverage-card p:last-child {
  color: rgba(255, 255, 255, 0.72);
}

.contact-section {
  color: var(--color-white);
  background:
    linear-gradient(rgba(0, 0, 0, 0.72), rgba(0, 0, 0, 0.86)),
    url("../assets/images/team-field-work.webp") center / cover;
}

.contact-section .section-summary {
  color: rgba(255, 255, 255, 0.74);
}

.contact-form {
  display: grid;
  gap: 1rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  color: var(--color-white);
  background: rgba(20, 20, 20, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow-panel);
}

.contact-links {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.5rem;
  color: rgba(255, 255, 255, 0.82);
}

.contact-links a {
  color: var(--color-school-bus-yellow);
  font-weight: 900;
  text-decoration: none;
}

.contact-links a:hover,
.contact-links a:focus-visible {
  text-decoration: underline;
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 0;
  padding: 0.9rem;
  color: var(--color-white);
  background: rgba(0, 0, 0, 0.38);
}

.site-footer {
  padding: 1.25rem var(--section-inline-padding);
  color: rgba(255, 255, 255, 0.7);
  background: var(--color-black);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero-grid,
  .split-grid,
  .contact-grid,
  .process-grid,
  .section-heading-row,
  .project-item {
    grid-template-columns: 1fr;
  }

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

  .project-item-reverse img {
    order: 0;
  }
}

@media (max-width: 720px) {
  .menu-toggle {
    display: inline-flex;
  }

  .site-header {
    background: rgba(0, 0, 0, 0.88);
  }

  .site-navigation {
    position: absolute;
    top: 100%;
    right: var(--section-inline-padding);
    left: var(--section-inline-padding);
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: var(--color-black);
  }

  .site-navigation.is-open {
    display: flex;
  }

  .hero-grid {
    align-items: end;
    padding-top: 7rem;
  }

  .service-strip,
  .card-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .image-stack {
    min-height: auto;
  }

  .image-primary,
  .image-secondary {
    position: static;
    width: 100%;
    height: auto;
  }

  .image-secondary {
    margin-top: 1rem;
    border: 0;
  }

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