:root {
  --page: #f7f9fb;
  --surface: #ffffff;
  --surface-soft: #eef5f4;
  --ink: #17202a;
  --muted: #61707c;
  --line: #dce5e8;
  --teal: #0f766e;
  --teal-dark: #115e59;
  --red: #c24132;
  --amber: #b7791f;
  --shadow: 0 24px 60px rgba(23, 32, 42, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto auto auto;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 64px);
  background: rgba(247, 249, 251, 0.84);
  border-bottom: 1px solid rgba(220, 229, 232, 0.72);
  backdrop-filter: blur(18px);
  transition: box-shadow 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 32px rgba(23, 32, 42, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  font-size: 14px;
}

.brand-text {
  font-size: 16px;
}

.main-nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav a {
  padding: 10px 12px;
  color: #40505c;
  font-size: 14px;
  font-weight: 600;
}

.main-nav a:hover {
  color: var(--teal-dark);
}

.main-nav a[aria-current="page"] {
  color: var(--ink);
}

.header-action,
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 700;
}

.header-action {
  padding: 0 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
}

.language-switch {
  display: inline-grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.language-switch button {
  min-width: 38px;
  height: 36px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
}

.language-switch button[aria-pressed="true"] {
  background: var(--ink);
  color: #fff;
}

.button {
  padding: 0 18px;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 14px 28px rgba(15, 118, 110, 0.22);
}

.button.primary:hover {
  background: var(--teal-dark);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(23, 32, 42, 0.14);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: 86vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 120px clamp(20px, 5vw, 64px) 88px;
  background: #f6faf9;
}

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

.hero-media {
  background-image: url("assets/hero-vr-training.png");
  background-size: cover;
  background-position: center right;
  transform: scale(1.01);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(247, 249, 251, 0.98) 0%, rgba(247, 249, 251, 0.88) 34%, rgba(247, 249, 251, 0.26) 69%, rgba(247, 249, 251, 0.08) 100%),
    linear-gradient(0deg, rgba(247, 249, 251, 0.9) 0%, rgba(247, 249, 251, 0) 28%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 680px;
  margin-bottom: 22px;
  font-size: clamp(44px, 7vw, 84px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 560px;
  margin-bottom: 32px;
  color: #364653;
  font-size: clamp(18px, 2vw, 22px);
}

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

.intro-band {
  margin-top: -40px;
  position: relative;
  z-index: 2;
  padding: 0 clamp(20px, 5vw, 64px);
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  box-shadow: var(--shadow);
}

.intro-grid > div {
  min-height: 132px;
  padding: 28px;
  background: var(--surface);
}

.metric {
  display: block;
  margin-bottom: 8px;
  font-size: 34px;
  font-weight: 800;
  line-height: 1;
}

.metric-label {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.section {
  padding: 96px clamp(20px, 5vw, 64px);
}

.section-heading {
  width: min(760px, 100%);
  margin-bottom: 36px;
}

.section-heading.compact {
  margin-bottom: 0;
}

.section-heading h2,
.contact-section h2 {
  margin-bottom: 16px;
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}

.section-heading p,
.contact-section p {
  color: var(--muted);
  font-size: 17px;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.scenario-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(23, 32, 42, 0.08);
}

.scenario-image {
  aspect-ratio: 16 / 9;
  width: 100%;
  object-fit: cover;
}

.scenario-body {
  padding: 26px;
}

.scenario-kicker {
  display: inline-flex;
  margin-bottom: 16px;
  color: var(--teal-dark);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.scenario-card h3 {
  margin-bottom: 12px;
  font-size: 26px;
  line-height: 1.16;
}

.scenario-card p {
  color: var(--muted);
}

.scenario-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.scenario-list li {
  position: relative;
  padding-left: 24px;
  color: #31414f;
  font-size: 14px;
  font-weight: 600;
}

.scenario-list li::before {
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--teal);
  content: "";
}

.scenario-card.is-warning .scenario-list li::before {
  background: var(--red);
}

.scenario-card.is-lab .scenario-list li::before {
  background: var(--amber);
}

.scenario-card.is-chemical .scenario-list li::before {
  background: #2563eb;
}

.scenario-card.is-construction .scenario-list li::before {
  background: #16a34a;
}

.scenario-card.is-electronic .scenario-list li::before {
  background: #7c3aed;
}

.scenario-card.is-biomedical .scenario-list li::before {
  background: #dc2626;
}

.light-section {
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.method-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}

.steps {
  display: grid;
  gap: 14px;
}

.steps article,
.benefit-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.steps article {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  padding: 24px;
}

.steps span {
  display: grid;
  width: 50px;
  height: 50px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--surface-soft);
  color: var(--teal-dark);
  font-weight: 800;
}

.steps h3,
.benefit-grid h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

.steps p,
.benefit-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.benefit-grid article {
  padding: 26px;
}

.pricing-hero {
  padding: 136px clamp(20px, 5vw, 64px) 44px;
  background:
    linear-gradient(180deg, rgba(238, 245, 244, 0.9), rgba(247, 249, 251, 0)),
    var(--page);
}

.pricing-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: end;
}

.pricing-hero .section-heading {
  width: min(760px, 100%);
  margin-bottom: 0;
}

.pricing-hero h1 {
  max-width: 760px;
  font-size: clamp(40px, 5vw, 66px);
  line-height: 1.02;
}

.pricing-rate {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  box-shadow: var(--shadow);
}

.pricing-rate > div {
  display: grid;
  gap: 8px;
  padding: 24px;
  background: var(--surface);
}

.pricing-rate span {
  color: var(--teal-dark);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.pricing-rate strong {
  font-size: clamp(34px, 4vw, 48px);
  line-height: 1;
}

.pricing-rate small,
.pricing-note {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.pricing-note {
  margin: 14px 0 0;
}

.pricing-section {
  padding-top: 48px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.pricing-card {
  display: grid;
  align-content: start;
  min-height: 410px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(23, 32, 42, 0.08);
}

.pricing-card.featured {
  border-color: rgba(15, 118, 110, 0.34);
  box-shadow: 0 24px 64px rgba(15, 118, 110, 0.16);
}

.pricing-card h2 {
  margin-bottom: 18px;
  font-size: 28px;
  line-height: 1.08;
}

.price-lines {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
  padding: 18px;
  border-radius: var(--radius);
  background: #f5f8f9;
  border: 1px solid var(--line);
}

.price-lines strong {
  font-size: 20px;
}

.price-lines span {
  color: var(--muted);
  font-weight: 700;
}

.included-list {
  display: grid;
  gap: 12px;
}

.included-list article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.pricing-cta {
  margin-top: 72px;
}

.certificate-hero {
  padding: 136px clamp(20px, 5vw, 64px) 56px;
  background:
    linear-gradient(180deg, rgba(238, 245, 244, 0.9), rgba(247, 249, 251, 0)),
    var(--page);
}

.certificate-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(420px, 1.2fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.certificate-hero h1 {
  max-width: 720px;
  font-size: clamp(40px, 5vw, 66px);
  line-height: 1.02;
}

.certificate-preview-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.certificate-preview-copy {
  padding: 24px 24px 0;
}

.certificate-preview-copy p {
  color: var(--muted);
  font-size: 15px;
}

.certificate-image {
  width: 100%;
  padding: 24px;
}

.certificate-features {
  padding-top: 48px;
}

.certificate-cta {
  margin-top: 0;
}

.included-list h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.28;
}

.pricing-contact {
  margin-top: 18px;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  margin: 0 clamp(20px, 5vw, 64px) 72px;
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
}

.contact-section .eyebrow,
.contact-section p {
  color: #c8e8e4;
}

.contact-section p {
  max-width: 780px;
  margin-bottom: 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 5vw, 64px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer span:first-child {
  color: var(--ink);
  font-weight: 800;
}

@media (max-width: 1080px) {
  .site-header {
    grid-template-columns: auto 1fr auto auto;
  }

  .main-nav,
  .header-action {
    display: none;
  }

  .nav-toggle {
    justify-self: end;
    display: grid;
    gap: 4px;
  }

  .site-header.is-open .main-nav {
    position: absolute;
    inset: 72px 20px auto;
    display: grid;
    justify-self: stretch;
    gap: 4px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  .site-header.is-open .main-nav a {
    padding: 14px;
  }
}

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: auto 1fr auto auto;
  }

  .main-nav,
  .header-action {
    display: none;
  }

  .nav-toggle {
    justify-self: end;
    display: grid;
    gap: 4px;
  }

  .site-header.is-open .main-nav {
    position: absolute;
    inset: 72px 20px auto;
    display: grid;
    justify-self: stretch;
    gap: 4px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  .site-header.is-open .main-nav a {
    padding: 14px;
  }

  .hero {
    min-height: 82vh;
    padding-top: 112px;
  }

  .hero-media {
    background-position: 62% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(247, 249, 251, 0.98) 0%, rgba(247, 249, 251, 0.88) 48%, rgba(247, 249, 251, 0.34) 100%),
      linear-gradient(0deg, rgba(247, 249, 251, 0.95) 0%, rgba(247, 249, 251, 0.1) 40%);
  }

  .intro-grid,
  .scenario-grid,
  .method-layout,
  .benefit-grid,
  .pricing-hero-layout,
  .certificate-layout,
  .pricing-rate,
  .pricing-grid,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .contact-section .button {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding-inline: 16px;
  }

  .brand-text {
    display: none;
  }

  h1 {
    font-size: 42px;
  }

  .hero {
    padding-inline: 18px;
    padding-bottom: 76px;
  }

  .pricing-hero {
    padding: 112px 18px 28px;
  }

  .certificate-hero {
    padding: 112px 18px 40px;
  }

  .pricing-hero h1 {
    font-size: 40px;
  }

  .certificate-hero h1 {
    font-size: 40px;
  }

  .pricing-rate > div {
    padding: 20px;
  }

  .section {
    padding: 72px 18px;
  }

  .intro-band,
  .contact-section,
  .site-footer {
    margin-inline: 18px;
    padding-inline: 18px;
  }

  .intro-grid > div,
  .scenario-body,
  .pricing-card,
  .certificate-image,
  .benefit-grid article {
    padding: 22px;
  }

  .steps article {
    grid-template-columns: 1fr;
  }

  .site-footer {
    display: grid;
    margin-inline: 0;
  }
}