.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;

  z-index: 10;

  justify-items: center;

  padding-block: 0.5rem;
}

.site-nav {
  position: relative;

  display: flex;
  align-items: flex-start;
  justify-content: center;

  gap: 0;

  width: fit-content;

  justify-self: center;

  margin-inline: 0;
  padding: 0;

  overflow: visible;

  background: rgba(248, 250, 252, 0.58);

  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-pill);

  box-shadow:
    0 12px 34px rgba(17, 19, 23, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.92),
    inset 0 -1px 0 rgba(255, 255, 255, 0.28);

  backdrop-filter: blur(28px) saturate(165%);
  -webkit-backdrop-filter: blur(28px) saturate(165%);
}

.site-menu-button {
  position: relative;

  display: none;

  width: 2rem;
  height: 2rem;

  padding: 0;

  color: var(--color-ink);
  background: transparent;

  border: 0;
  border-radius: var(--radius-pill);

  cursor: pointer;

  transition: transform 220ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.site-menu-button:active {
  transform: scale(0.88);
  transition-duration: 65ms;
}

.site-menu-button:focus-visible,
.site-nav-link:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: -2px;
}

.site-menu-button span {
  position: absolute;

  left: 50%;

  width: 0.9rem;
  height: 0.1rem;

  background: currentColor;
  border-radius: var(--radius-pill);

  transform: translateX(-50%);

  transition:
    opacity 160ms ease,
    top 160ms ease,
    transform 160ms ease;
}

.site-menu-button span:nth-child(1) {
  top: 0.65rem;
}

.site-menu-button span:nth-child(2) {
  top: 0.95rem;
}

.site-menu-button span:nth-child(3) {
  top: 1.25rem;
}

.site-menu-button[aria-expanded="true"] span:nth-child(1) {
  top: 0.95rem;
  transform: translateX(-50%) rotate(45deg);
}

.site-menu-button[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.site-menu-button[aria-expanded="true"] span:nth-child(3) {
  top: 0.95rem;
  transform: translateX(-50%) rotate(-45deg);
}

.site-menu-panel,
.site-nav-list {
  display: flex;
  align-items: center;
}

.site-menu-panel {
  justify-content: center;
  gap: 0;
}

.site-nav-list {
  gap: 0;
  min-width: 0;
}

.site-nav-list li {
  display: flex;
  align-items: center;
}

.site-nav-list li:not(:last-child)::after {
  width: 1px;
  height: 0.9rem;

  content: "";

  background: rgba(17, 19, 23, 0.13);
}

.site-nav-link {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  min-height: 2.35rem;

  padding-inline: 0.8rem;

  color: var(--color-muted);
  background: transparent;

  border: 0;
  border-radius: 0;

  box-shadow: none;

  font-size: 0.78rem;
  font-weight: 650;

  white-space: nowrap;

  -webkit-tap-highlight-color: transparent;

  transform: translateZ(0);

  transition:
    color 110ms ease,
    background 110ms ease,
    box-shadow 140ms ease,
    transform 140ms ease;
}

.site-nav-list li:first-child .site-nav-link {
  border-radius: var(--radius-pill) 0 0 var(--radius-pill);
}

.site-nav-list li:last-child .site-nav-link {
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
}

.site-nav-link:is(:hover, :focus-visible) {
  color: var(--color-ink);
  background: rgba(255, 255, 255, 0.24);
  outline: none;
}

.site-nav-link:active {
  color: #5f6872;

  background: rgba(225, 229, 234, 0.56);

  box-shadow:
    inset 4px 4px 10px rgba(17, 19, 23, 0.2),
    inset -4px -4px 10px rgba(255, 255, 255, 0.82);

  transform: none;

  transition-duration: 35ms;
}

/* ============================================
   TABLET
   ============================================ */

@media (min-width: 761px) and (max-width: 900px) {
  .site-nav-link {
    padding-inline: 0.65rem;
    font-size: 0.78rem;
  }
}

/* ============================================
   MOBILE
   ============================================ */

@media (max-width: 760px) {
  .site-header {
    justify-items: end;
    padding-block: 0.45rem;
  }

  .site-nav {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: 2.5rem;
    justify-self: end;
    margin-inline: 0 var(--space-page);
    padding: 0.24rem;
    overflow: visible;
    border-color: rgba(255, 255, 255, 0.72);
    border-radius: 1.35rem;

    transition:
      width 220ms cubic-bezier(0.2, 0.8, 0.2, 1),
      border-radius 220ms ease,
      box-shadow 220ms ease;
  }

  .site-menu-button {
    display: block;
    flex: 0 0 auto;
    align-self: flex-end;
  }

  .site-menu-panel {
    display: grid;
    width: 100%;
    max-height: 0;
    gap: 0;
    padding: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;

    transition:
      max-height 240ms cubic-bezier(0.2, 0.8, 0.2, 1),
      opacity 140ms ease,
      visibility 240ms ease;
  }

  .site-nav-list {
    display: grid;
    gap: 0.25rem;
    padding-top: 0.35rem;
  }

  .site-nav-list li::after {
    display: none;
  }

  .site-nav-link {
    justify-content: flex-start;
    width: 100%;
    min-height: 2.55rem;
    padding-inline: 0.85rem;
    border-radius: 0.45rem;
    opacity: 0;
    transform: translateY(-0.3rem);

    transition:
      color 110ms ease,
      background 110ms ease,
      box-shadow 140ms ease,
      opacity 160ms ease,
      transform 140ms ease;
  }

  .site-nav-list li:first-child .site-nav-link,
  .site-nav-list li:last-child .site-nav-link {
    border-radius: 0.45rem;
  }

  .site-nav.is-menu-open {
    width: min(calc(100vw - (var(--space-page) * 2)), 18rem);

    border-radius: 1rem;

    box-shadow:
      0 20px 48px rgba(17, 19, 23, 0.16),
      inset 0 1px 0 rgba(255, 255, 255, 0.92);
  }

  .site-nav.is-menu-open .site-menu-panel {
    max-height: 22rem;
    gap: 0.35rem;
    padding: 0 0.15rem 0.15rem;
    opacity: 1;
    visibility: visible;
  }

  .site-nav.is-menu-open .site-nav-link {
    opacity: 1;
    transform: translateY(0);
  }

  .site-nav.is-menu-open .site-nav-link:active {
    transform: none;
  }

  .site-nav.is-menu-open .site-nav-list li:nth-child(1) .site-nav-link {
    transition-delay: 0ms, 0ms, 0ms, 40ms, 40ms;
  }

  .site-nav.is-menu-open .site-nav-list li:nth-child(2) .site-nav-link {
    transition-delay: 0ms, 0ms, 0ms, 65ms, 65ms;
  }

  .site-nav.is-menu-open .site-nav-list li:nth-child(3) .site-nav-link {
    transition-delay: 0ms, 0ms, 0ms, 90ms, 90ms;
  }

  .site-nav.is-menu-open .site-nav-list li:nth-child(4) .site-nav-link {
    transition-delay: 0ms, 0ms, 0ms, 115ms, 115ms;
  }

  .site-nav.is-menu-open .site-nav-list li:nth-child(5) .site-nav-link {
    transition-delay: 0ms, 0ms, 0ms, 140ms, 140ms;
  }
}

/* ============================================
   BACKDROP FILTER FALLBACK
   ============================================ */

@supports not (
  (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))
) {
  .site-nav {
    background: rgba(248, 250, 252, 0.96);
  }
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  .site-nav,
  .site-menu-panel,
  .site-menu-button span,
  .site-nav-link {
    transition: none;
  }

  .site-nav-link:hover,
  .site-nav-link:active,
  .site-menu-button:active,
  .site-nav.is-menu-open .site-nav-link:active {
    transform: none;
  }
}

/* =========================================================
   FLOATING CONTACT CTA
   ========================================================= */

.floating-contact {
  position: fixed;
  right: clamp(1rem, 2vw, 2rem);
  bottom: clamp(1rem, 2vw, 2rem);
  z-index: 100;

  display: inline-flex;
  align-items: center;
  gap: 0.8rem;

  min-height: 3rem;
  padding: 0.75rem 1.25rem;

  color: #ffffff;
  background: linear-gradient(135deg, #087fd0, #0b9be7);
  border: 0;
  border-radius: 0.55rem;
  box-shadow: 0 12px 30px rgba(7, 136, 207, 0.24);

  font: inherit;
  font-size: 0.78rem;
  font-weight: 750;

  cursor: pointer;

  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transform: translateY(1rem);

  transition:
    opacity 250ms ease,
    transform 250ms ease,
    visibility 250ms ease,
    box-shadow 200ms ease;
}

.floating-contact.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.floating-contact:hover {
  box-shadow: 0 16px 34px rgba(7, 136, 207, 0.32);
}

.floating-contact-arrow {
  font-size: 1rem;
  transition: transform 180ms ease;
}

.floating-contact:hover .floating-contact-arrow {
  transform: translateX(4px);
}

.floating-contact:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 4px;
}

/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 760px) {
  .floating-contact {
    right: 1rem;
    bottom: 1rem;
    min-height: 2.8rem;
    padding: 0.65rem 1rem;
    font-size: 0.72rem;
  }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  .floating-contact,
  .floating-contact-arrow {
    transition: none;
  }
}


.site-nav-link.is-current {
  color: var(--color-brand);
  background: rgba(7, 136, 207, 0.06);
}