/* Shared site header. Loaded by the homepage, the case-study hub and every case page,
   so it carries its own tokens and does not depend on either page stylesheet. */

.gnav {
  --gn-abyss: #0A1E24;
  --gn-aqua: #27C2B7;
  --gn-haze: #B9CCD0;
  --gn-porcelain: #F8FAFA;
  --gn-hair: rgba(255, 255, 255, 0.12);
  --gn-ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --gn-gutter: clamp(20px, 5vw, 64px);

  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(10, 30, 36, 0.94);
  border-bottom: 1px solid var(--gn-hair);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: #FFFFFF;
  font-family: "Host Grotesk", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.gnav-in {
  display: flex;
  align-items: center;
  gap: 40px;
  max-width: 1200px;
  height: 72px;
  margin: 0 auto;
  padding: 0 var(--gn-gutter);
}

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

.gnav-brand {
  margin-right: auto;
  font-size: 17px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.gnav-links {
  display: flex;
  gap: 32px;
}

.gnav-links a {
  position: relative;
  padding: 8px 0;
  font-size: 14px;
  font-weight: 300;
  line-height: 1;
  color: var(--gn-haze);
  transition: color 0.3s var(--gn-ease);
}

.gnav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--gn-aqua);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.45s var(--gn-ease);
}

.gnav-links a:hover,
.gnav-links a.is-active {
  color: #FFFFFF;
}

.gnav-links a:hover::after,
.gnav-links a.is-active::after {
  transform: scaleX(1);
}

.gnav-cta {
  position: relative;
  overflow: hidden;
  display: inline-block;
  padding: 12px 18px;
  border-radius: 2px;
  background: var(--gn-porcelain);
  color: var(--gn-abyss) !important;
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  white-space: nowrap;
}

.gnav-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gn-aqua);
  transform: translateY(101%);
  transition: transform 0.45s var(--gn-ease);
}

.gnav-cta span {
  position: relative;
}

.gnav-cta:hover::before {
  transform: none;
}

.gnav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border: 0;
  background: none;
  color: #FFFFFF;
  font: 400 11px/1 "DM Mono", ui-monospace, monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.gnav-toggle i {
  position: relative;
  display: block;
  width: 18px;
  height: 1px;
  background: currentColor;
  transition: background 0.3s var(--gn-ease);
}

.gnav-toggle i::before,
.gnav-toggle i::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1px;
  background: currentColor;
  transition: transform 0.4s var(--gn-ease);
}

.gnav-toggle i::before {
  top: -5px;
}

.gnav-toggle i::after {
  top: 5px;
}

.gnav-links a:focus-visible,
.gnav-brand:focus-visible,
.gnav-cta:focus-visible,
.gnav-toggle:focus-visible {
  outline: 2px solid var(--gn-aqua);
  outline-offset: 4px;
}

@media (max-width: 860px) {
  .gnav-in {
    gap: 20px;
    height: 64px;
  }

  .gnav-toggle {
    display: inline-flex;
  }

  .gnav-cta {
    display: none;
  }

  .gnav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 8px var(--gn-gutter) 28px;
    background: var(--gn-abyss);
    border-bottom: 1px solid var(--gn-hair);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.35s var(--gn-ease), transform 0.35s var(--gn-ease), visibility 0s linear 0.35s;
  }

  .gnav-links a {
    padding: 18px 0;
    border-bottom: 1px solid var(--gn-hair);
    font-size: 22px;
    letter-spacing: -0.02em;
  }

  .gnav-links a::after {
    display: none;
  }

  .gnav-links a.is-active {
    color: var(--gn-aqua);
  }

  .gnav-links .gnav-cta-m {
    display: block;
    margin-top: 22px;
    padding: 16px 18px;
    border-bottom: 0;
    border-radius: 2px;
    background: var(--gn-porcelain);
    color: var(--gn-abyss);
    font-size: 15px;
    text-align: center;
  }

  .gnav.is-open .gnav-links {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: opacity 0.35s var(--gn-ease), transform 0.35s var(--gn-ease);
  }

  .gnav.is-open .gnav-toggle i {
    background: transparent;
  }

  .gnav.is-open .gnav-toggle i::before {
    transform: translateY(5px) rotate(45deg);
  }

  .gnav.is-open .gnav-toggle i::after {
    transform: translateY(-5px) rotate(-45deg);
  }
}

@media (min-width: 861px) {
  .gnav-links .gnav-cta-m {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gnav *,
  .gnav *::before,
  .gnav *::after {
    transition: none !important;
  }
}

@media print {
  .gnav {
    position: static;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
    background: var(--gn-abyss);
  }

  .gnav-links,
  .gnav-cta,
  .gnav-toggle {
    display: none !important;
  }
}