:root {
  --gt-ink: #172026;
  --gt-muted: #63717a;
  --gt-paper: #f7f4ed;
  --gt-surface: #ffffff;
  --gt-green: #2f6f58;
  --gt-green-dark: #214f42;
  --gt-blue: #275d75;
  --gt-ochre: #c18f32;
  --gt-line: #d8ded8;
}

html {
  scroll-padding-top: 88px;
}

body {
  color: var(--gt-ink);
  background: var(--gt-paper);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: var(--gt-blue);
}

a:hover {
  color: var(--gt-green-dark);
}

.navbar {
  background: rgba(23, 32, 38, 0.96);
  backdrop-filter: blur(16px);
}

.navbar-brand img {
  width: 44px;
  height: 44px;
}

.nav-link {
  font-weight: 650;
}

.lang-switch {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 0.2rem;
}

.lang-switch .btn {
  min-width: 42px;
  border-radius: 999px;
  color: #ffffff;
  font-weight: 700;
}

.lang-switch .btn.active {
  background: #ffffff;
  color: var(--gt-ink);
}

.hero {
  min-height: calc(100vh - 74px);
  background:
    linear-gradient(90deg, rgba(17, 27, 30, 0.9), rgba(17, 27, 30, 0.64), rgba(17, 27, 30, 0.22)),
    url("../img/hero-survey.jpg") center / cover;
  color: #ffffff;
  display: flex;
  align-items: center;
}

.hero .lead {
  color: rgba(255, 255, 255, 0.86);
}

.hero-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  width: fit-content;
  margin-top: 1.5rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-left: 4px solid var(--gt-ochre);
  border-radius: 8px;
  background: rgba(17, 27, 30, 0.68);
  color: #ffffff;
  backdrop-filter: blur(8px);
}

.section {
  padding: 5rem 0;
}

.section-tight {
  padding: 3.5rem 0;
}

.eyebrow {
  color: var(--gt-green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title {
  font-weight: 800;
  letter-spacing: 0;
}

.text-muted-strong {
  color: var(--gt-muted);
}

.btn-primary {
  --bs-btn-bg: var(--gt-green);
  --bs-btn-border-color: var(--gt-green);
  --bs-btn-hover-bg: var(--gt-green-dark);
  --bs-btn-hover-border-color: var(--gt-green-dark);
  --bs-btn-active-bg: var(--gt-green-dark);
  --bs-btn-active-border-color: var(--gt-green-dark);
}

.btn-outline-primary {
  --bs-btn-color: var(--gt-green-dark);
  --bs-btn-border-color: var(--gt-green);
  --bs-btn-hover-bg: var(--gt-green);
  --bs-btn-hover-border-color: var(--gt-green);
}

.card {
  border: 1px solid var(--gt-line);
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(23, 32, 38, 0.07);
}

.service-card img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 8px 8px 0 0;
}

.feature-icon {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(47, 111, 88, 0.1);
  color: var(--gt-green-dark);
  font-size: 1.15rem;
}

.feature-icon i {
  line-height: 1;
}

.work-with-section .text-muted-strong {
  max-width: 42rem;
}

.timeline {
  counter-reset: step;
}

.timeline-step {
  position: relative;
  padding-left: 4rem;
}

.timeline-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--gt-blue);
  color: #ffffff;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.price-table {
  --bs-table-bg: #ffffff;
  border: 1px solid var(--gt-line);
}

.price-table th {
  color: var(--gt-green-dark);
  white-space: nowrap;
}

.price-note {
  background: rgba(193, 143, 50, 0.12);
  border: 1px solid rgba(193, 143, 50, 0.28);
  border-radius: 8px;
}

.resource-link {
  text-decoration: none;
}

.resource-link .card {
  transition: transform 160ms ease, border-color 160ms ease;
}

.resource-link:hover .card {
  transform: translateY(-3px);
  border-color: rgba(47, 111, 88, 0.45);
}

.proof-img {
  width: 100%;
  max-height: 440px;
  object-fit: contain;
  background: #f0f2ef;
  border-radius: 8px;
}

.footer {
  background: var(--gt-ink);
  color: rgba(255, 255, 255, 0.78);
}

.footer a {
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
}

.footer a:hover {
  color: #ffffff;
}

.footer-logo {
  width: 48px;
  height: 48px;
}

.contact-action {
  min-height: 100%;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 2000;
  background: #ffffff;
  color: var(--gt-ink);
  padding: 0.75rem 1rem;
}

.skip-link:focus {
  left: 0;
}

@media (max-width: 767.98px) {
  .hero {
    min-height: auto;
    padding: 5rem 0;
    background:
      linear-gradient(180deg, rgba(17, 27, 30, 0.92), rgba(17, 27, 30, 0.72)),
      url("../img/hero-survey.jpg") center / cover;
  }

  .section {
    padding: 3.5rem 0;
  }

  .timeline-step {
    padding-left: 3.4rem;
  }
}