/* ============================================
   HEADER — THEME 5: NEON NIGHTS (STRUCTURAL)
   ============================================ */

:root {
  --ebhdr20-background-color: rgba(7, 11, 22, 0.92);
  --ebhdr20-border-color: transparent;
  --ebhdr20-site-name-color: #e2e8f0;
  --ebhdr20-nav-link-color: #94a3b8;
  --ebhdr20-nav-link-hover-color: #00e5ff;
  --ebhdr20-nav-underline-color: #a855f7;
  --ebhdr20-dropdown-background-color: #0f172a;
  --ebhdr20-dropdown-border-color: rgba(168, 85, 247, 0.25);
  --ebhdr20-dropdown-link-color: #cbd5e1;
  --ebhdr20-dropdown-link-hover-color: #00e5ff;
  --ebhdr20-dropdown-link-hover-background-color: rgba(168, 85, 247, 0.1);
  --ebhdr20-toggle-icon-color: #e2e8f0;
  --ebhdr20-toggle-icon-active-color: #00e5ff;
  --ebhdr20-mobile-background-color: #070b16;
  --ebhdr20-mobile-menu-border-color: rgba(168, 85, 247, 0.2);
  --ebhdr20-mobile-menu-title-color: #e2e8f0;
  --ebhdr20-mobile-close-color: #f472b6;
  --ebhdr20-mobile-dropdown-background-color: rgba(168, 85, 247, 0.06);
  --ebhdr20-radius: 16px;
  --ebhdr20-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* STRUCTURAL: gradient bottom border, no solid border, glass bg */
.ebhdr20-hdr {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 99999 !important;
  background-color: var(--ebhdr20-background-color);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: none;
  box-shadow: 0 1px 0 0 rgba(168, 85, 247, 0.2), 0 4px 24px rgba(0, 0, 0, 0.4);
  padding: 0.9rem 2rem;
  transition: all 0.3s var(--ebhdr20-ease);
}

.ebhdr20-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ebhdr20-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ebhdr20-logo img {
  height: 42px;
  width: auto;
  border-radius: 10px;
}

/* STRUCTURAL: uppercase site name with letter-spacing */
.ebhdr20-site-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ebhdr20-site-name-color);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ebhdr20-nav-list {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}

/* STRUCTURAL: uppercase nav links with letter-spacing */
.ebhdr20-nav-link {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ebhdr20-nav-link-color);
  transition: all 0.3s var(--ebhdr20-ease);
  position: relative;
  padding: 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ebhdr20-nav-link:hover,
.ebhdr20-nav-link.active {
  color: var(--ebhdr20-nav-link-hover-color);
}

/* STRUCTURAL: bottom dot indicator instead of underline */
.ebhdr20-nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 4px;
  background: var(--ebhdr20-nav-underline-color);
  border-radius: 50%;
  transition: all 0.3s var(--ebhdr20-ease);
  transform: translateX(-50%);
  box-shadow: 0 0 8px var(--ebhdr20-nav-underline-color);
}

.ebhdr20-nav-link:hover::after,
.ebhdr20-nav-link.active::after {
  width: 4px;
}

.ebhdr20-nav-dropdown {
  position: relative;
}

.ebhdr20-nav-dropdown button {
  background: none;
  border: none;
  font-family: inherit;
  padding: 0.5rem 0;
  cursor: pointer;
  outline: none;
}

/* STRUCTURAL: dropdown with left accent border */
.ebhdr20-dropdown {
  position: absolute;
  top: 100%;
  right: 50%;
  transform: translateX(50%) translateY(12px);
  background: var(--ebhdr20-dropdown-background-color);
  border: 1px solid var(--ebhdr20-dropdown-border-color);
  border-right: 3px solid #a855f7;
  border-radius: 10px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  min-width: 190px;
  list-style: none;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s var(--ebhdr20-ease);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.ebhdr20-nav-dropdown:hover .ebhdr20-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(50%) translateY(0);
}

.ebhdr20-dropdown-item a {
  display: block;
  padding: 0.65rem 1.25rem;
  font-size: 0.88rem;
  color: var(--ebhdr20-dropdown-link-color);
  font-weight: 600;
  transition: all 0.25s var(--ebhdr20-ease);
}

.ebhdr20-dropdown-item a:hover {
  background-color: var(--ebhdr20-dropdown-link-hover-background-color);
  color: var(--ebhdr20-dropdown-link-hover-color);
  padding-right: 1.6rem;
}

.ebhdr20-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 0;
  outline: none;
}

/* STRUCTURAL: thicker hamburger lines */
.ebhdr20-nav-toggle span {
  width: 26px;
  height: 3px;
  background-color: var(--ebhdr20-toggle-icon-color);
  transition: all 0.3s var(--ebhdr20-ease);
  border-radius: 2px;
}

.ebhdr20-nav-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
  background-color: var(--ebhdr20-toggle-icon-active-color);
}

.ebhdr20-nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.ebhdr20-nav-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
  background-color: var(--ebhdr20-toggle-icon-active-color);
}

.ebhdr20-nav-menu-upper {
  display: none;
}

@media (max-width: 1024px) {
  .ebhdr20-hdr {
    background-color: var(--ebhdr20-mobile-background-color) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .ebhdr20-nav-toggle {
    display: flex;
  }

  /* STRUCTURAL: mobile drawer from LEFT with wider width */
  .ebhdr20-nav-menu {
    position: fixed;
    top: 0;
    bottom: 0;
    left: -100%;
    width: 300px;
    background-color: var(--ebhdr20-mobile-background-color) !important;
    box-shadow: 10px 0 40px rgba(0, 0, 0, 0.6);
    z-index: 1000;
    transition: left 0.4s var(--ebhdr20-ease);
    padding: 2rem;
    border-right: 1px solid var(--ebhdr20-mobile-menu-border-color);
  }

  .ebhdr20-nav-menu.active {
    left: 0;
  }

  .ebhdr20-nav-menu-upper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--ebhdr20-mobile-menu-border-color);
    padding-bottom: 1rem;
  }

  .ebhdr20-menu-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--ebhdr20-mobile-menu-title-color);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .ebhdr20-nav-close {
    font-size: 1.25rem;
    color: var(--ebhdr20-mobile-close-color);
    cursor: pointer;
  }

  .ebhdr20-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .ebhdr20-nav-link {
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }

  .ebhdr20-nav-link::after {
    display: none;
  }

  .ebhdr20-dropdown {
    position: static;
    transform: none !important;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    border-right: 3px solid #a855f7;
    background: var(--ebhdr20-mobile-dropdown-background-color);
    margin-top: 0.5rem;
    padding: 0;
    display: none;
    width: 100%;
  }

  .ebhdr20-nav-dropdown.active .ebhdr20-dropdown {
    display: block;
  }

  .ebhdr20-nav-close {
    display: none !important;
  }

  @media (max-width: 480px) {
    .ebhdr20-nav-menu {
      width: 100% !important;
      left: -100% !important;
    }
    .ebhdr20-nav-menu.active {
      left: 0 !important;
    }
  }
}