/* Mobile navigation */
.mobile-menu-toggle {
  width: 44px;
  height: 44px;
  display: none;
  place-items: center;
  position: relative;
  border: 1px solid rgba(7, 27, 58, 0.12);
  border-radius: 10px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
}

.mobile-menu-toggle span {
  position: absolute;
  left: 12px;
  right: 12px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease, top 180ms ease;
}

.mobile-menu-toggle span:nth-child(1) {
  top: 14px;
}

.mobile-menu-toggle span:nth-child(2) {
  top: 21px;
}

.mobile-menu-toggle span:nth-child(3) {
  top: 28px;
}

.mobile-menu-toggle b {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.mobile-nav-open .mobile-menu-toggle span:nth-child(1) {
  top: 21px;
  transform: rotate(45deg);
}

.mobile-nav-open .mobile-menu-toggle span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-open .mobile-menu-toggle span:nth-child(3) {
  top: 21px;
  transform: rotate(-45deg);
}

@media (max-width: 820px) {
  .site-header {
    z-index: 100;
  }

  .header-inner {
    position: relative;
    gap: 10px;
  }

  .brand {
    flex: 0 0 auto;
  }

  .mobile-menu-toggle {
    display: grid;
    order: 3;
  }

  .header-actions {
    margin-left: auto;
    gap: 10px;
    order: 2;
  }

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 10px);
    display: block !important;
    padding: 10px;
    border: 1px solid rgba(7, 27, 58, 0.1);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 24px 70px rgba(7, 27, 58, 0.16);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
    visibility: hidden;
  }

  .mobile-nav-open .nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    visibility: visible;
  }

  .nav-menu,
  .nav ul {
    width: 100%;
    display: grid !important;
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .nav-menu li,
  .nav li {
    width: 100%;
  }

  .nav-menu a,
  .nav a {
    min-height: 46px;
    display: flex;
    align-items: center;
    padding: 0 12px;
    border-radius: 10px;
    color: var(--ink);
    font-size: 0.98rem;
    font-weight: 750;
  }

  .nav-menu a:hover,
  .nav a:hover {
    color: var(--blue);
    background: rgba(23, 105, 255, 0.08);
  }
}

@media (max-width: 520px) {
  .header-inner {
    width: min(100% - 24px, 1280px);
  }

  .brand {
    width: 126px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 10px;
    font-size: 0.78rem;
  }
}

@media (max-width: 390px) {
  .header-cta {
    display: none;
  }
}