@import url("https://fonts.googleapis.com/css2?family=Archivo+Black&family=Inter:wght@400;600;700;800;900&display=swap");

:root {
  --color-key-lime: #d9c126;
  --color-concord: #7c7a79;
  --color-abbey: #4a4d4f;
  --color-school-bus-yellow: #ffd900;
  --color-accent-dark: #6f5f00;
  --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: "Inter", Arial, Helvetica, sans-serif;
  --font-display: "Archivo Black", Arial Black, Impact, sans-serif;
  --section-inline-padding: clamp(1rem, 4vw, 3rem);
  --section-block-padding: clamp(4rem, 8vw, 8rem);
  --max-content-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  overflow-x: hidden;
}

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

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: var(--color-black);
  background: var(--color-school-bus-yellow);
  font-weight: 900;
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

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

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

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-school-bus-yellow);
  outline-offset: 4px;
}

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 {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0.2rem 0.75rem;
  color: var(--color-school-bus-yellow);
  background: rgba(0, 0, 0, 0.35);
  border-left: 5px solid var(--color-school-bus-yellow);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.9rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  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);
}

section[id] {
  scroll-margin-top: 5.5rem;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.22rem;
  flex-direction: column;
  width: 46px;
  height: 42px;
  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;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-white);
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

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

.hero-section {
  position: relative;
  min-height: 100svh;
  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: 1fr;
  align-content: end;
  gap: clamp(1.5rem, 4vw, 3rem);
  min-height: 100svh;
  padding-top: 8rem;
  padding-bottom: clamp(3rem, 7vw, 6rem);
}

.hero-copy {
  max-width: min(1180px, 78vw);
}

.hero-copy h1 {
  max-width: 11ch;
}

.hero-support {
  display: grid;
  grid-template-columns: minmax(360px, 0.54fr) minmax(320px, 0.34fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: end;
  justify-content: space-between;
}

.hero-intro {
  max-width: 660px;
}

.eyebrow {
  margin: 0 0 1.15rem;
  color: var(--color-school-bus-yellow);
  font-size: clamp(1rem, 1.2vw, 1.2rem);
  font-weight: 900;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 0.96;
  letter-spacing: -0.075em;
  overflow-wrap: normal;
}

h1 {
  margin-bottom: 1.4rem;
  font-size: clamp(4.4rem, 8.2vw, 8.8rem);
}

h2 {
  margin-bottom: 1.3rem;
  font-size: clamp(3.6rem, 7.8vw, 7.4rem);
}

h3 {
  font-family: var(--font-display);
  margin-bottom: 0.85rem;
  font-size: clamp(1.45rem, 2.8vw, 2.35rem);
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.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-align: center;
  text-decoration: none;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
  cursor: pointer;
}

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

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-key-lime);
  transform: translateY(-2px);
}

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

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--color-school-bus-yellow);
  transform: translateY(-2px);
}

.quote-card {
  width: min(100%, 390px);
  justify-self: end;
  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(1.9rem, 2.2vw, 2.7rem);
}

.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 {
  position: relative;
  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 article:hover {
  background: rgba(255, 217, 0, 0.06);
}

.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(1.8rem, 3.4vw, 3rem);
}

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

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

.split-grid,
.contact-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:
    linear-gradient(135deg, rgba(255, 217, 0, 0.08), transparent 28%),
    var(--color-surface-strong);
}

.about-section .eyebrow,
.services-section .eyebrow,
.process-section .eyebrow,
.services-section .card-number {
  color: var(--color-accent-dark);
}

.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-strong);
}

.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: 4px solid var(--color-accent-dark);
}

.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:
    radial-gradient(circle at 90% 12%, rgba(255, 217, 0, 0.12), transparent 28rem),
    var(--color-surface-strong);
}

.services-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.35rem;
  align-items: start;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.services-title h2 {
  max-width: 13.5ch;
  margin-bottom: 0;
  font-size: clamp(4rem, 6.7vw, 7.4rem);
}

.services-heading .section-summary {
  max-width: 780px;
  margin-bottom: 0;
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
}

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

.service-carousel {
  display: grid;
  gap: 1.25rem;
}

.service-carousel-viewport {
  position: relative;
  min-height: clamp(420px, 42vw, 560px);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 217, 0, 0.14), transparent 34%),
    linear-gradient(145deg, #191b1c, #3f4244);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 5px solid var(--color-school-bus-yellow);
  color: var(--color-white);
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.2);
}

.service-carousel-viewport::after {
  position: absolute;
  right: clamp(1rem, 4vw, 3rem);
  bottom: clamp(1rem, 4vw, 3rem);
  width: min(32vw, 320px);
  height: min(32vw, 320px);
  content: "";
  background: radial-gradient(circle, rgba(255, 217, 0, 0.18), transparent 68%);
  pointer-events: none;
}

.service-card {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  align-content: center;
  padding: clamp(1.75rem, 5vw, 4rem);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms ease, transform 700ms ease;
  overflow: hidden;
  pointer-events: none;
}

.service-card.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.service-card h3 {
  max-width: 18ch;
  overflow-wrap: normal;
  font-size: clamp(3.6rem, 8vw, 7.8rem);
}

.service-card .card-number {
  color: var(--color-school-bus-yellow);
}

.service-card p {
  max-width: 56ch;
  color: rgba(255, 255, 255, 0.74);
  font-size: clamp(1.12rem, 1.7vw, 1.45rem);
}

.service-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.65rem;
}

.service-carousel-dots button {
  width: 0.8rem;
  height: 0.8rem;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(74, 77, 79, 0.34);
  cursor: pointer;
}

.service-carousel-dots button:hover,
.service-carousel-dots button:focus-visible,
.service-carousel-dots button.is-active {
  background: var(--color-school-bus-yellow);
  outline: 2px solid transparent;
}

.service-carousel-dots button.is-active {
  width: 2.1rem;
}

.carousel-control {
  justify-self: center;
  min-height: 44px;
  padding: 0.6rem 1rem;
  color: var(--color-ink);
  background: transparent;
  border: 1px solid rgba(74, 77, 79, 0.45);
  font-weight: 900;
  cursor: pointer;
}

.carousel-control:hover,
.carousel-control:focus-visible {
  color: var(--color-black);
  background: var(--color-school-bus-yellow);
  border-color: var(--color-school-bus-yellow);
}

.project-item img,
.process-visual img,
.image-primary,
.image-secondary {
  transition: transform 700ms ease, filter 700ms ease;
}

.project-item:hover img,
.process-visual:hover img,
.image-stack:hover .image-primary,
.image-stack:hover .image-secondary {
  filter: contrast(1.04) saturate(1.04);
  transform: translateY(-4px);
}

.reveal-item {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 800ms ease, transform 800ms ease, filter 800ms ease;
  filter: blur(4px);
}

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

.reveal-from-left {
  transform: translateX(-48px);
}

.reveal-from-right {
  transform: translateX(48px);
}

.reveal-scale {
  transform: translateY(28px) scale(0.96);
}

.reveal-from-left.is-visible,
.reveal-from-right.is-visible,
.reveal-scale.is-visible {
  transform: translateX(0) translateY(0) scale(1);
}

.reveal-item:nth-child(2) {
  transition-delay: 80ms;
}

.reveal-item:nth-child(3) {
  transition-delay: 160ms;
}

.reveal-item:nth-child(4) {
  transition-delay: 240ms;
}

.projects-section {
  color: var(--color-white);
  background:
    linear-gradient(135deg, rgba(255, 217, 0, 0.1), transparent 22rem),
    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(2.8rem, 5.8vw, 5.2rem);
}

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

.process-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.78fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.process-visual {
  position: relative;
  margin: 0;
  min-height: 520px;
  background: var(--color-surface);
}

.process-visual::after {
  position: absolute;
  right: -2rem;
  bottom: 2rem;
  width: 38%;
  height: 4px;
  content: "";
  background: var(--color-school-bus-yellow);
}

.process-visual img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
  box-shadow: var(--shadow-panel);
}

.process-copy {
  max-width: 620px;
}

.process-heading h2 {
  font-size: clamp(4rem, 7vw, 7rem);
}

.process-heading h2,
.process-heading .section-summary {
  margin-bottom: 0;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: process;
}

.process-list li {
  min-height: 250px;
  padding: 1.35rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 5px solid var(--color-school-bus-yellow);
  color: rgba(255, 255, 255, 0.72);
  background: var(--color-surface-dark);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.16);
  counter-increment: process;
}

.process-list li::before {
  display: block;
  margin-bottom: 2.5rem;
  content: counter(process, decimal-leading-zero) ".";
  color: var(--color-school-bus-yellow);
  font-size: 0.95rem;
  font-weight: 900;
}

.process-list strong {
  display: block;
  color: var(--color-white);
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  line-height: 1;
}

.process-list span {
  display: block;
  max-width: 26ch;
  margin-top: 0.85rem;
}

.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(620px, calc(100% - 2rem));
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: rgba(0, 0, 0, 0.78);
  border-top: 5px solid var(--color-school-bus-yellow);
}

.coverage-card h2 {
  max-width: 8.8ch;
  margin-bottom: 1.25rem;
  font-size: clamp(3rem, 5.3vw, 5.6rem);
  overflow-wrap: anywhere;
}

.coverage-card p:last-child {
  max-width: 44ch;
  color: rgba(255, 255, 255, 0.72);
}

.contact-section {
  color: var(--color-white);
  background:
    radial-gradient(circle at 16% 18%, rgba(255, 217, 0, 0.18), transparent 20rem),
    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-section .contact-grid {
  grid-template-columns: minmax(0, 0.72fr) minmax(480px, 0.82fr);
  align-items: center;
}

.contact-copy {
  max-width: 720px;
}

.contact-copy h2 {
  max-width: 8.6ch;
  margin-bottom: 1.5rem;
  font-size: clamp(3.5rem, 6.6vw, 6.2rem);
}

.contact-copy .section-summary {
  max-width: 560px;
}

.contact-panel {
  display: grid;
  gap: 1.4rem;
  width: min(100%, 640px);
  justify-self: end;
  padding: clamp(1.4rem, 3vw, 2.6rem);
  color: var(--color-white);
  background: rgba(20, 20, 20, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-top: 5px solid #25d366;
  box-shadow: var(--shadow-panel);
}

.whatsapp-cta {
  display: grid;
  grid-template-columns: minmax(4.5rem, auto) minmax(0, 1fr);
  gap: clamp(1rem, 2.6vw, 1.8rem);
  align-items: center;
  color: var(--color-white);
  text-decoration: none;
}

.whatsapp-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(4.5rem, 8vw, 7rem);
  height: clamp(4.5rem, 8vw, 7rem);
}

.whatsapp-icon img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 18px 32px rgba(37, 211, 102, 0.32));
}

.whatsapp-cta strong {
  display: block;
  font-family: var(--font-display);
  max-width: 12.5ch;
  font-size: clamp(2rem, 3.1vw, 3.35rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  overflow-wrap: normal;
}

.whatsapp-cta small {
  display: block;
  margin-top: 0.65rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  font-weight: 900;
}

.contact-panel p {
  margin: 0;
  max-width: 36ch;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
}

.contact-panel a:not(.whatsapp-cta) {
  color: var(--color-school-bus-yellow);
  font-weight: 900;
  text-decoration: none;
}

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

.contact-panel > span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.92rem;
  font-weight: 800;
}

.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: 1180px) {
  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-carousel-viewport {
    min-height: clamp(400px, 48vw, 520px);
  }

  .service-card h3 {
    font-size: clamp(3.2rem, 7vw, 6.4rem);
  }

  .project-item h3 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
  }
}

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

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

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

  .hero-copy {
    max-width: 100%;
  }

  .hero-copy h1 {
    max-width: 12ch;
  }

  .quote-card {
    justify-self: start;
  }

  .services-title h2 {
    max-width: 13.5ch;
  }

  .contact-copy h2 {
    max-width: 10ch;
  }

  .contact-section .contact-grid {
    align-items: start;
  }

  .contact-panel {
    justify-self: start;
  }

  .process-visual,
  .process-visual img {
    min-height: 420px;
  }
}

@media (max-width: 860px) {
  .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);
    box-shadow: var(--shadow-panel);
  }

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

  .site-navigation a {
    padding: 0.7rem 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;
    min-height: auto;
    padding-top: 9rem;
    padding-bottom: 3rem;
  }

  .hero-copy,
  .hero-intro,
  .section-summary,
  .hero-summary {
    max-width: 100%;
  }

  .hero-copy h1 {
    max-width: 100%;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

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

  .service-strip {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .service-strip::-webkit-scrollbar {
    display: none;
  }

  .service-strip article {
    flex: 0 0 100%;
    min-height: 280px;
    border-right: 0;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    scroll-snap-align: start;
  }

  .service-strip::after {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    color: rgba(255, 255, 255, 0.54);
    content: "Desliza";
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }

  .service-carousel-viewport {
    min-height: 440px;
  }

  .service-card h3 {
    max-width: 100%;
    font-size: clamp(2.6rem, 11vw, 4rem);
  }

  .image-stack {
    display: none;
  }

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

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

  .process-list {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .process-list::-webkit-scrollbar {
    display: none;
  }

  .process-list li {
    flex: 0 0 100%;
    scroll-snap-align: start;
  }

  h1 {
    font-size: clamp(3rem, 14vw, 5rem);
  }

  h2 {
    font-size: clamp(2.8rem, 12vw, 4.4rem);
  }

  .services-title h2,
  .process-heading h2,
  .contact-copy h2 {
    font-size: clamp(2.8rem, 12vw, 4.4rem);
  }

  .brand-link {
    min-height: 40px;
    font-size: 1.05rem;
  }

  .process-visual,
  .process-visual img {
    min-height: 300px;
  }

  .process-visual::after {
    right: 1rem;
    bottom: -0.5rem;
  }

  .coverage-card {
    right: 1rem;
    bottom: 1rem;
    width: calc(100% - 2rem);
  }

  .coverage-card h2 {
    max-width: 10ch;
    font-size: clamp(2.4rem, 12vw, 4rem);
  }

  .contact-copy h2 {
    max-width: 10ch;
    font-size: clamp(2.6rem, 13vw, 4.2rem);
  }

  .whatsapp-cta {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .whatsapp-cta strong {
    max-width: 100%;
    font-size: clamp(2rem, 10vw, 3.35rem);
  }

  .process-list li {
    min-height: auto;
  }

  .process-list li::before {
    margin-bottom: 1.5rem;
  }
}

@media (max-width: 520px) {
  :root {
    --section-inline-padding: 1rem;
    --section-block-padding: 3.5rem;
  }

  .eyebrow {
    font-size: 0.82rem;
    letter-spacing: 0.16em;
  }

  .site-header {
    padding-block: 0.85rem;
  }

  .brand-link {
    max-width: 58vw;
    min-height: 38px;
    font-size: 0.95rem;
  }

  .menu-toggle {
    width: 42px;
    height: 38px;
  }

  .hero-grid {
    padding-top: 7.5rem;
  }

  .quote-card {
    width: 100%;
  }

  .quote-card h2 {
    font-size: clamp(1.7rem, 8vw, 2.4rem);
  }

  .service-strip article {
    min-height: 260px;
  }

  .stats-grid div {
    border-top-color: var(--color-school-bus-yellow);
  }

  .services-title h2,
  .process-heading h2,
  .contact-copy h2,
  .coverage-card h2 {
    max-width: 100%;
  }

  .service-carousel-viewport {
    min-height: 410px;
  }

  .service-card {
    padding: 1.25rem;
  }

  .service-card h3 {
    font-size: clamp(2.25rem, 10.5vw, 3.4rem);
    letter-spacing: -0.06em;
  }

  .service-card p {
    font-size: 1rem;
  }

  .project-item h3 {
    font-size: clamp(2.1rem, 11vw, 3.4rem);
  }

  .process-list li {
    padding: 1.1rem;
  }

  .coverage-section,
  .coverage-section img {
    min-height: 520px;
  }

  .coverage-card {
    padding: 1.25rem;
  }

  .contact-panel {
    padding: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

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