:root {
  --navy: #0a1f8f;
  --orange: #ff6c37;
  --white: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.75);
  --container-width: 1280px;

  /* Spacing scale (8px base grid) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;
  --space-12: 96px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-md: 0.7s;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "DM Sans", "Roboto", Arial, sans-serif;
  font-size: 16px;
  color: var(--navy);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

/* Reveal-on-scroll utility */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--duration-md) var(--ease-out), transform var(--duration-md) var(--ease-out);
  will-change: opacity, transform;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Header */

.site-header {
  padding: var(--space-4) 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.logo img {
  height: 56px;
  transition: opacity 0.2s ease;
}

.logo:hover img {
  opacity: 0.8;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin: 0;
  padding: 0;
}

.main-nav a {
  position: relative;
  font-size: 1rem;
  font-weight: 500;
  color: var(--navy);
  padding-bottom: 4px;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease-out);
}

.main-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.main-nav a.is-active {
  color: var(--orange);
}

.main-nav a.is-active::after {
  background: var(--orange);
  transform: scaleX(1);
  transform-origin: left;
}

.lang-switch {
  position: relative;
}

.lang-switch__toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  color: var(--navy);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.chevron {
  font-size: 0.7rem;
  color: var(--orange);
  transition: transform 0.2s ease;
}

.lang-switch.is-open .chevron {
  transform: rotate(180deg);
}

.lang-switch__toggle:hover .chevron {
  transform: translateY(2px);
}

.lang-switch.is-open .lang-switch__toggle:hover .chevron {
  transform: rotate(180deg);
}

.lang-switch__menu {
  position: absolute;
  top: calc(100% + 14px);
  right: 0;
  min-width: 140px;
  margin: 0;
  padding: var(--space-1) 0;
  list-style: none;
  background: var(--white);
  border-radius: 10px;
  box-shadow: 0 16px 40px -12px rgba(10, 31, 143, 0.28);
  opacity: 0;
  transform: translateY(-6px);
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 20;
}

.lang-switch.is-open .lang-switch__menu {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.lang-switch__menu a {
  display: block;
  padding: var(--space-1) var(--space-3);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--navy);
  white-space: nowrap;
  transition: background 0.15s ease;
}

.lang-switch__menu a:hover {
  background: rgba(10, 31, 143, 0.06);
}

.lang-switch__menu a.is-current {
  color: var(--orange);
  font-weight: 700;
}

/* Hero */

.hero {
  text-align: center;
  padding: var(--space-12) var(--space-5) 0;
}

.hero h1 {
  font-size: clamp(2rem, 1.2rem + 3.4vw, 3.25rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  max-width: 900px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s var(--ease-out) 0.1s forwards;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 0.95rem + 0.8vw, 1.5rem);
  font-weight: 400;
  margin: var(--space-3) auto 0;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s var(--ease-out) 0.3s forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: var(--space-8) 0 var(--space-12);
}

.hero-divider .bar {
  width: 8px;
  height: 10px;
  background: var(--navy);
  border-radius: 15px;
}

.hero-divider .bar.in-view {
  animation: growBar 1.7s var(--ease-out) forwards;
}

@keyframes growBar {
  0% {
    height: 10px;
  }
  100% {
    height: 160px;
  }
}

.hero-divider .dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--orange);
  margin-top: var(--space-2);
  opacity: 0;
  transform: scale(0.2);
}

.hero-divider .dot.in-view {
  animation: popIn 0.5s var(--ease-out) 0.7s forwards;
}

@keyframes popIn {
  0% {
    opacity: 0;
    transform: scale(0.2);
  }
  70% {
    opacity: 1;
    transform: scale(1.25);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* Intro blocks */

.intro-block {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-5);
}

.intro-block--reverse {
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
}

.intro-block--reverse .intro-text {
  order: 1;
}

.intro-block--reverse .intro-image {
  order: 2;
}

.intro-image {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: 0 20px 45px -20px rgba(10, 31, 143, 0.35);
}

.intro-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.intro-image:hover img {
  transform: scale(1.05);
}

.intro-text p {
  font-size: 1.125rem;
  line-height: 1.75;
  margin: 0;
}

.intro-text strong {
  font-weight: 700;
}

.intro-block .intro-image,
.intro-block .intro-text {
  transition-delay: 0.7s;
}

/* Compact hero (secondary pages) */

.hero--compact {
  padding-bottom: var(--space-10);
}

.hero--compact h1 {
  max-width: 980px;
  animation: fadeInUp 0.8s var(--ease-out) 0.1s forwards;
}

.quality-badge {
  width: 260px;
  margin: var(--space-5) auto 0;
}

.quality-badge img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

/* Mission / vision band */

.quality-mission {
  background: var(--navy);
  color: var(--white);
  padding: var(--space-10) 0;
  margin-top: var(--space-10);
}

.quality-mission__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.quality-mission__col h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0 0 var(--space-3);
}

.quality-mission__col p {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* Values */

.quality-values {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
  gap: var(--space-8);
  padding: var(--space-10) var(--space-5);
}

.quality-values__title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.25;
  margin: 0;
}

.quality-values__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.quality-values__list li {
  font-size: 1.0625rem;
  line-height: 1.7;
}

.quality-values__num {
  color: var(--navy);
  font-weight: 700;
  margin-right: 2px;
}

/* Contact page */

.contact-hero {
  padding-top: var(--space-10);
  padding-bottom: var(--space-10);
}

.contact-hero__inner {
  display: grid;
  grid-template-columns: minmax(200px, 1.4fr) repeat(3, minmax(160px, 1fr));
  align-items: start;
  gap: var(--space-6) var(--space-5);
}

.contact-hero h1 {
  font-size: clamp(2.25rem, 1.6rem + 2.5vw, 3.25rem);
  font-weight: 800;
  margin: 0;
}

.contact-info {
  display: contents;
}

.contact-info__col {
  min-width: 0;
}

.contact-info__col h2 {
  margin: 0 0 var(--space-2);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--orange);
}

.contact-info__col p {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--navy);
}

.contact-info__col a {
  transition: opacity 0.2s ease;
}

.contact-info__col a:hover {
  opacity: 0.75;
  text-decoration: underline;
}

.contact-map {
  margin-top: var(--space-8);
  height: 520px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 45px -20px rgba(10, 31, 143, 0.35);
}

.contact-map iframe {
  display: block;
}

/* Legal page */

.legal-hero {
  padding-top: var(--space-10);
  padding-bottom: var(--space-6);
}

.legal-hero h1 {
  font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  font-weight: 800;
  max-width: 900px;
  margin: 0 0 var(--space-4);
}

.legal-hero__intro {
  max-width: 820px;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--navy);
}

.legal-content {
  padding-top: var(--space-6);
  padding-bottom: var(--space-12);
}

.legal-content__inner {
  max-width: 820px;
  margin-right: auto;
}

.legal-content h2 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--navy);
  margin: var(--space-8) 0 var(--space-2);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 3px;
  margin: var(--space-6) 0 var(--space-2);
}

.legal-content p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--navy);
  margin: 0 0 var(--space-3);
}

.legal-content ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0 0 var(--space-3);
  padding-left: 1.3em;
}

.legal-content li {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--navy);
}

.legal-table-wrap {
  overflow-x: auto;
  margin: var(--space-3) 0 var(--space-4);
}

.legal-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.legal-table th {
  background: rgba(10, 31, 143, 0.12);
  text-align: left;
  font-weight: 700;
  color: var(--navy);
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(10, 31, 143, 0.15);
}

.legal-table td {
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(10, 31, 143, 0.15);
  color: var(--navy);
  vertical-align: top;
}

.legal-updated {
  margin-top: var(--space-6);
}

.legal-copyright {
  color: rgba(10, 31, 143, 0.7);
}

/* Services grid */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  padding-bottom: var(--space-10);
}

.service-card {
  position: relative;
  aspect-ratio: 4 / 4.3;
  overflow: hidden;
  border-radius: 20px;
  isolation: isolate;
}

.service-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.service-card:hover img {
  transform: scale(1.06);
}

.service-card__title {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin: 0;
  padding: var(--space-4);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--white);
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}

.service-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: rgba(10, 31, 143, 0.94);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
  pointer-events: none;
}

.service-card__overlay p {
  margin: 0;
  color: var(--white);
  font-size: 1rem;
  line-height: 1.6;
  text-align: center;
}

.service-card:hover .service-card__title,
.service-card:focus-within .service-card__title {
  opacity: 0;
  transform: translateY(-8px);
}

.service-card:hover .service-card__overlay,
.service-card:focus-within .service-card__overlay {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */

.site-footer {
  background: var(--navy);
  color: var(--white);
  margin-top: var(--space-10);
  padding: var(--space-8) 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  gap: var(--space-3);
}

.footer-col p {
  margin: 0 0 6px;
  font-size: 0.9375rem;
}

.footer-legal p:nth-child(2) {
  color: var(--text-muted);
}

.footer-legal a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.footer-legal a:hover {
  color: var(--white);
}

.footer-contact {
  text-align: center;
}

.footer-company {
  font-weight: 700;
}

.footer-contact a {
  transition: opacity 0.2s ease;
}

.footer-contact a:hover {
  text-decoration: underline;
  opacity: 0.85;
}

.footer-certs {
  display: flex;
  justify-content: flex-end;
}

.footer-certs img {
  width: 180px;
  height: auto;
  background: var(--white);
  border-radius: 6px;
  padding: var(--space-1) var(--space-2);
}

/* Responsive */

@media (max-width: 900px) {
  .main-nav ul {
    gap: var(--space-3);
  }

  .intro-block,
  .intro-block--reverse {
    grid-template-columns: 1fr;
  }

  .intro-block--reverse .intro-text {
    order: 2;
  }

  .intro-block--reverse .intro-image {
    order: 1;
  }

  .intro-image {
    aspect-ratio: 16 / 10;
  }

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

  .quality-mission__inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .quality-values {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .contact-hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5) var(--space-6);
  }

  .contact-hero h1 {
    grid-column: 1 / -1;
  }

  .contact-map {
    height: 400px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-4);
  }

  .footer-certs {
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 var(--space-3);
  }

  .header-inner {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
  }

  .main-nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2) var(--space-3);
  }

  .hero {
    padding-top: var(--space-6);
  }

  .hero--compact {
    padding-bottom: var(--space-12);
  }

  .hero-divider {
    margin: var(--space-6) 0 var(--space-8);
  }

  .intro-block {
    padding: var(--space-4) var(--space-3);
    gap: var(--space-4);
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .service-card {
    aspect-ratio: unset;
    background: transparent;
    border-radius: 0;
    border-bottom: 1px solid rgba(10, 31, 143, 0.12);
    padding: var(--space-5) 0;
  }

  .service-card:first-child {
    padding-top: 0;
  }

  .service-card:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .service-card img {
    display: none;
  }

  .service-card__title,
  .service-card:hover .service-card__title,
  .service-card:focus-within .service-card__title {
    position: static;
    opacity: 1;
    transform: none;
    display: block;
    text-align: left;
    padding: 0;
    margin: 0 0 var(--space-2);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--navy);
  }

  .service-card__title::before {
    content: "";
    display: block;
    width: 28px;
    height: 3px;
    border-radius: 2px;
    background: var(--orange);
    margin-bottom: var(--space-2);
  }

  .service-card__overlay,
  .service-card:hover .service-card__overlay,
  .service-card:focus-within .service-card__overlay {
    position: static;
    opacity: 1;
    transform: none;
    background: transparent;
    padding: 0;
    pointer-events: auto;
  }

  .service-card__overlay p {
    text-align: left;
    color: rgba(10, 31, 143, 0.7);
    font-size: 0.95rem;
    font-weight: 400;
    line-height: 1.65;
  }

  .quality-badge {
    width: 220px;
  }

  .quality-mission {
    padding: var(--space-8) 0;
  }

  .quality-values {
    padding: var(--space-8) var(--space-3);
  }

  .quality-values__title {
    font-size: 1.6rem;
  }

  .contact-hero {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .contact-hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .contact-hero h1 {
    grid-column: 1;
  }

  .contact-map {
    height: 320px;
    margin-top: var(--space-6);
  }
}