:root {
  --blue-primary: #1F5FA8;
  --blue-secondary: #2F76C2;
  --gray-dark: #3A3A3A;
  --gray-light: #BFC3C7;
  --white: #FFFFFF;
  --shadow: 0 10px 25px rgba(31, 95, 168, 0.12);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--gray-dark);
  background-color: var(--white);
  line-height: 1.6;
}

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

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

.container {
  width: min(1200px, 90%);
  margin: 0 auto;
}

.section {
  padding: 96px 0;
}

main > section {
  position: relative;
}

main > section + section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: min(900px, 72%);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(31, 95, 168, 0.35), transparent);
  transform: translateX(-50%);
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--white);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}

.logo img {
  width: 200px;
  height: auto;
}

.main-nav {
  display: flex;
  gap: 20px;
  font-weight: 600;
}

.main-nav a {
  position: relative;
  padding-bottom: 4px;
  transition: color 0.3s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--blue-secondary);
  transition: width 0.3s ease;
}

.main-nav a:hover {
  color: var(--blue-primary);
}

.main-nav a:hover::after {
  width: 100%;
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-btn {
  border: 1px solid var(--gray-light);
  background: transparent;
  padding: 6px 10px;
  border-radius: 20px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.lang-btn.active,
.lang-btn:hover {
  background-color: var(--blue-primary);
  color: var(--white);
  border-color: var(--blue-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--gray-dark);
}

.hero {
  position: relative;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.45s ease;
}

.hero-video.is-active {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(20, 60, 110, 0.38);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  color: var(--white);
  text-align: center;
  max-width: 800px;
  padding: 0 20px;
  animation: fadeUp 1.1s ease both;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 1.1rem;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 28px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: var(--blue-primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--blue-secondary);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.text-block h2,
.section h2 {
  color: var(--blue-primary);
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 20px;
}

.image-block img {
  border-radius: 16px;
  box-shadow: var(--shadow);
}

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

.about-split {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(320px, 1.1fr);
  gap: 48px;
  align-items: stretch;
}

.about-visual img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
  object-position: left center;
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.about-card {
  background: #f8f9fb;
  border-radius: 20px;
  padding: 36px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 700;
  color: var(--blue-secondary);
  font-size: 0.85rem;
}

.about-list {
  list-style: none;
  display: grid;
  gap: 10px;
  margin-top: 6px;
}

.about-list li {
  position: relative;
  padding-left: 22px;
  font-weight: 500;
}

.about-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--blue-secondary);
}

.about-commitments {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.about-commitments span {
  background-color: #eef3fb;
  color: var(--blue-primary);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
}

.about-highlights {
  margin-top: 24px;
  display: grid;
  gap: 14px;
}

.about-highlight {
  background-color: #f8f9fb;
  border-radius: 14px;
  padding: 14px 16px;
}

.about-label {
  display: inline-block;
  font-weight: 700;
  color: var(--blue-primary);
  margin-bottom: 6px;
}

.about-highlight p {
  margin: 0;
  color: var(--gray-dark);
}

.section-intro {
  max-width: 100%;
  margin-bottom: 24px;
}

.what-we-do {
  background-color: #f8f9fb;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 28px;
}

.client-card {
  background-color: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 24px 18px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  min-height: 180px;
}

.client-card img {
  width: 130px;
  height: 70px;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.85;
  transition: transform 0.3s ease, opacity 0.3s ease, filter 0.3s ease;
}

.client-card h3 {
  font-size: 1rem;
  color: var(--gray-dark);
}

.client-card:hover img {
  transform: scale(1.04);
  opacity: 1;
  filter: grayscale(0);
}

.service-list {
  list-style: none;
  display: grid;
  gap: 12px;
  font-weight: 500;
}

.service-list li {
  padding-left: 24px;
  position: relative;
}

.service-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--blue-secondary);
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 32px;
}

.service-text h3 {
  font-size: 2rem;
  color: var(--blue-primary);
  margin-bottom: 16px;
}

.service-image img {
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.service-card {
  background-color: #f8f9fb;
  border-radius: 18px;
  padding: 28px;
  display: grid;
  gap: 18px;
}

.service-card p {
  margin-bottom: 14px;
}

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(31, 95, 168, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.service-icon svg {
  width: 24px;
  height: 24px;
  color: var(--blue-secondary);
}

.service-points {
  list-style: none;
  display: grid;
  gap: 10px;
  font-weight: 500;
  color: var(--gray-dark);
}

.service-points li {
  position: relative;
  padding-left: 22px;
}

.service-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--blue-secondary);
}

.services-carousel {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  align-items: center;
  gap: 12px;
}

.services-divider {
  height: 1px;
  width: min(680px, 70%);
  margin: 36px auto 32px;
  background: linear-gradient(90deg, transparent, rgba(31, 95, 168, 0.35), transparent);
}

.services-gallery {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(220px, 1fr);
  gap: 14px;
  overflow: hidden;
  scroll-behavior: smooth;
}

.services-gallery img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.offers {
  background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 55%, #f2f6fb 100%);
}

.offers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 28px;
}

.offer-card {
  background-color: var(--white);
  border-radius: 18px;
  padding: 26px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.offer-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(47, 118, 194, 0.12), transparent 55%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.offer-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 35px rgba(31, 95, 168, 0.18);
}

.offer-card:hover::after {
  opacity: 1;
}

.offer-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: rgba(31, 95, 168, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-secondary);
  transition: transform 0.35s ease, background 0.35s ease;
}

.offer-icon svg {
  width: 26px;
  height: 26px;
  transition: transform 0.35s ease;
}

.offer-card:hover .offer-icon {
  transform: translateY(-2px);
  background: rgba(31, 95, 168, 0.18);
}

.offer-card:hover .offer-icon svg {
  transform: rotate(-8deg) scale(1.04);
}

.offer-card h3 {
  font-size: 1.4rem;
  color: var(--blue-primary);
}

.offer-card p {
  margin: 0;
  color: var(--gray-dark);
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(31, 95, 168, 0.2);
  background: var(--white);
  color: var(--blue-primary);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, background 0.2s ease;
}

.carousel-btn:hover {
  transform: translateY(-1px);
  background: #f0f4fb;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 30, 0.85);
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 2000;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox-image {
  max-width: min(900px, 92vw);
  max-height: 85vh;
  border-radius: 16px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
}

@media (max-width: 700px) {
  .services-carousel {
    grid-template-columns: 1fr;
  }

  .carousel-btn {
    display: none;
  }
}

.equipment-section {
  margin-top: 36px;
}

.equipment-section h3 {
  font-size: 2rem;
  color: var(--blue-primary);
  margin-bottom: 14px;
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.equipment-card {
  background-color: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 20px;
  display: grid;
  gap: 10px;
}

.equipment-card h4 {
  font-size: 1.1rem;
  color: var(--blue-primary);
}

.projects {
  background-color: #f8f9fb;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.project-card {
  overflow: hidden;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.project-card img {
  transition: transform 0.4s ease;
}

.project-card:hover img {
  transform: scale(1.05);
}

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

.contact-details p {
  margin-bottom: 10px;
}

.contact-email-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

.contact-email-list ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.contact-email-list li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-email-icon {
  width: 20px;
  height: 20px;
  color: var(--blue-primary);
  display: inline-flex;
}

.contact-email-icon svg {
  width: 100%;
  height: 100%;
}

.contact-form {
  background-color: #f8f9fb;
  padding: 32px;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.contact-map iframe {
  width: 100%;
  height: 320px;
  border: 0;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

input,
textarea {
  border: 1px solid var(--gray-light);
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 2px rgba(31, 95, 168, 0.15);
}

.site-footer {
  padding: 30px 0;
  background-color: #f0f2f5;
  font-size: 0.95rem;
}

.footer-columns {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-brand p {
  margin: 0;
}

.footer-powered {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.footer-powered img {
  height: 28px;
  width: auto;
  display: block;
}

@media (max-width: 700px) {
  .footer-columns {
    flex-direction: column;
    align-items: flex-start;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s ease;
}

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

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    top: 72px;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    box-shadow: var(--shadow);
    transform: translateX(120%);
    transition: transform 0.3s ease;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .nav-toggle {
    display: flex;
  }

  .about-split {
    grid-template-columns: 1fr;
  }

  .about-visual img {
    min-height: 320px;
  }

  .about-card {
    padding: 28px;
  }

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

@media (max-width: 700px) {
  .header-content {
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .lang-switch {
    order: 3;
  }

  .hero-content p {
    font-size: 1rem;
  }
}