/* Site header: logo left, nav + contact right; mobile menu */

.top-header {
  cursor: default;
}

.header-content {
  width: 100%;
  max-width: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.header-logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-right: auto;
  text-decoration: none;
  border-radius: 8px;
  outline-offset: 3px;
}

.header-logo-link:focus-visible {
  outline: 2px solid var(--brand-color);
}

.header-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 4px 28px;
}

.header-nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  text-decoration: none;
  padding: 0.35rem 0.15rem;
  border-radius: 4px;
  transition: color 0.2s ease, opacity 0.2s ease;
  white-space: nowrap;
}

.header-nav-link:hover {
  color: var(--brand-color);
}

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

.header-nav-link.is-active {
  color: var(--brand-color);
}

/* Active link on brand-tinted header bar: use page bg for contrast (desktop nav only) */
.top-header.is-brand-tint .header-nav .header-nav-link.is-active {
  color: var(--bg);
}

.top-header.is-brand-tint .header-nav .header-nav-link.is-active:hover {
  color: var(--bg);
  opacity: 0.88;
}

.header-end {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-shrink: 0;
}

.header-contact-btn {
  font-size: 0.92rem;
  padding: 0.5rem 1.1rem;
  white-space: nowrap;
  z-index: 2;
}

.header-contact-btn::before,
.header-contact-btn::after {
  border-radius: inherit;
}

.header-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  color: #ffffff;
  filter: none;
  cursor: pointer;
  transition: opacity 0.2s ease, filter 0.3s ease;
}

.top-header.is-chrome-on-light .header-menu-toggle {
  filter: invert(1);
}

/* Open menu: white chrome in dark mode, dark chrome in light mode */
@media (prefers-color-scheme: dark) {
  .top-header.is-menu-open .site-logo {
    filter: none;
  }

  .top-header.is-menu-open .header-menu-toggle {
    filter: none;
  }
}

@media (prefers-color-scheme: light) {
  .top-header.is-menu-open .site-logo {
    filter: invert(1);
  }

  .top-header.is-menu-open .header-menu-toggle {
    filter: invert(1);
  }
}

.header-menu-toggle:hover {
  opacity: 0.65;
}

.header-menu-toggle:focus-visible {
  outline: 2px solid var(--brand-color);
  outline-offset: 2px;
}

.header-menu-icon {
  display: block;
  width: 20px;
  height: 14px;
  position: relative;
}

.header-menu-icon::before,
.header-menu-icon::after,
.header-menu-icon span {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.25s ease, top 0.25s ease, opacity 0.2s ease;
}

.header-menu-icon::before {
  top: 0;
}

.header-menu-icon span {
  top: 6px;
}

.header-menu-icon::after {
  top: 12px;
}

.top-header.is-menu-open .header-menu-icon::before {
  top: 6px;
  transform: rotate(45deg);
}

.top-header.is-menu-open .header-menu-icon span {
  opacity: 0;
}

.top-header.is-menu-open .header-menu-icon::after {
  top: 6px;
  transform: rotate(-45deg);
}

.header-mobile-menu {
  display: none;
}

.header-mobile-menu .header-nav-link {
  padding: 0.85rem 0rem;
  border-radius: 8px;
}

.header-mobile-menu .header-nav-link:hover {
  background: color-mix(in srgb, var(--brand-color) 14%, transparent);
}

.header-mobile-menu .header-contact-btn {
  margin-top: 8px;
  width: 100%;
  justify-content: center;
}

.header-content {
  position: relative;
}

@media (max-width: 768px) {
  .top-header {
    perspective: 900px;
    perspective-origin: top center;
  }

  .header-nav,
  .header-end .header-contact-btn {
    display: none;
  }

  .header-menu-toggle {
    display: inline-flex;
    position: relative;
    z-index: 2;
  }

  .header-logo-link {
    position: relative;
    z-index: 2;
  }

  .header-end {
    gap: 0;
    position: relative;
    z-index: 2;
  }

  .header-mobile-menu {
    display: flex;
    position: absolute;
    left: -20px;
    right: -20px;
    top: -20px;
    z-index: 0;
    flex-direction: column;
    gap: 4px;
    padding: calc(20px + 44px + 16px) 20px 24px;
    border: none;
    border-bottom-left-radius: 30px;
    border-bottom-right-radius: 30px;
    background: color-mix(in srgb, var(--bg) 55%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 0 0 rgba(0, 0, 0, 0);
    transform: translateY(-100%) scale(0.7) rotateX(90deg);
    filter: blur(70px);
    transform-origin: top center;
    transform-style: preserve-3d;
    visibility: hidden;
    pointer-events: none;
    will-change: transform, backdrop-filter;
    transition:
      transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
      visibility 0.5s cubic-bezier(0.22, 1, 0.36, 1),
      backdrop-filter 0.55s ease,
      -webkit-backdrop-filter 0.55s ease,
      background 0.45s ease,
      box-shadow 0.5s ease,
      filter 0.35s ease;
  }

  .top-header.is-menu-open .header-mobile-menu {
    transform: translateY(0) scale(1) rotateX(0deg);
    visibility: visible;
    pointer-events: auto;
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    filter: blur(0px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
  }

  .top-header.is-menu-open .header-blur {
    opacity: 0;
    transition: opacity 0.25s ease;
  }
}

@media (prefers-reduced-motion: reduce) {
  .header-nav-link,
  .header-menu-toggle,
  .header-menu-icon::before,
  .header-menu-icon::after,
  .header-menu-icon span,
  .header-mobile-menu,
  .top-header.is-menu-open .header-blur {
    transition: none;
  }

  .header-mobile-menu {
    transform: translateY(-100%);
  }

  .top-header.is-menu-open .header-mobile-menu {
    transform: translateY(0);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }
}