/* Shared header styling for standard static pages */
.main-nav {
  position: sticky;
  top: 12px;
  z-index: 20;
  width: min(100% - 24px, 1280px);
  margin: 12px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px 12px 24px;
  border-radius: 99px;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  box-shadow: var(--shadow-panel), inset 0 1px 0 var(--glass-highlight);
  gap: 12px;
  transition: border-radius var(--transition), background var(--transition), box-shadow var(--transition);
}

.brand-name {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
}

.brand-name img {
  margin-right: 0;
  flex-shrink: 0;
}

.brand-name .accent {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text {
  display: inline;
}

.nav-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
  align-items: center;
}

/* Mobile Toggle Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--glass-bg-soft);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  padding: 0;
  color: var(--text-primary);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  flex-shrink: 0;
}

.mobile-menu-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.mobile-menu-btn:active {
  transform: scale(0.95);
}

.hamburger-line {
  display: block;
  width: 18px;
  height: 2px;
  background-color: currentColor;
  border-radius: 2px;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
  transform-origin: center;
}

.mobile-menu-btn.is-active .hamburger-line:nth-child(1),
.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn.is-active .hamburger-line:nth-child(2),
.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-menu-btn.is-active .hamburger-line:nth-child(3),
.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@keyframes navDropdownSlide {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .main-nav {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    border-radius: 20px;
    padding: 10px 16px;
    width: min(100% - 16px, 640px);
  }

  .main-nav.is-open {
    border-radius: 22px;
    background: var(--glass-bg-strong);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55);
  }

  .mobile-menu-btn {
    display: flex;
  }

  .nav-actions {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 8px;
    padding-top: 14px;
    margin-top: 8px;
    border-top: 1px solid var(--glass-border-soft);
  }

  .nav-actions.is-open,
  .main-nav.is-open .nav-actions {
    display: flex;
    animation: navDropdownSlide 0.22s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }

  .nav-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 16px;
    font-size: 14px;
    border-radius: 10px;
  }
}