/* ==========================================================================
   HDM Marketing Theme — Header & Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: var(--z-header);
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-base),
              box-shadow var(--transition-base);
}

/* Offset header when WP admin bar is present */
.admin-bar .site-header {
  top: 32px;
}

@media (max-width: 782px) {
  .admin-bar .site-header {
    top: 46px;
  }
}

.site-header.scrolled {
  background-color: rgba(10, 10, 10, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* ── Logo ── */
.site-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo-img {
  height: 130px;
  width: auto;
  /* Make pure-black background transparent, show only white text + green D */
  mix-blend-mode: lighten;
  transition: opacity var(--transition-base);
}

.site-logo-link:hover .site-logo-img {
  opacity: 0.85;
}

/* Fallback text logo */
.site-logo-text {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo-hdm {
  color: var(--accent);
}

.logo-marketing {
  color: var(--text);
}

/* ── Navigation ── */
.main-navigation {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu li a {
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-base);
  position: relative;
  padding-block: 6px;
  font-family: 'Heebo', sans-serif;
}

.nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width var(--transition-base);
}

.nav-menu li a:hover,
.nav-menu li.current-menu-item a {
  color: var(--text);
}

.nav-menu li a:hover::after,
.nav-menu li.current-menu-item a::after {
  width: 100%;
}

/* ── Header CTA ── */
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-6);
  background-color: var(--accent);
  color: var(--bg-primary);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.header-cta:hover {
  background-color: var(--accent-dim);
  color: var(--bg-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

/* ── Header actions wrapper ── */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ── Hamburger / Mobile Toggle ── */
.mobile-menu-toggle {
  display: none; /* shown on mobile via media query */
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 30px;
  height: 30px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: calc(var(--z-header) + 10);
}

.hamburger-line {
  display: block;
  width: 26px;
  height: 2px;
  background-color: var(--text);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.mobile-menu-toggle.is-open .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.is-open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.is-open .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ── Header spacer (push content below fixed header) ── */
.header-spacer {
  height: 80px;
}

/* ── Mobile header & dropdown nav ── */
@media (max-width: 900px) {
  .header-inner {
    height: 64px;
  }

  .site-logo-img {
    height: 64px;
  }

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

  /* Hide the "talk to us" header CTA on mobile to keep the bar clean */
  .header-actions .btn-cta-header {
    display: none;
  }

  /* Turn the nav into a dropdown panel under the fixed header */
  .main-navigation {
    position: static;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding-inline: var(--space-6);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height 0.35s ease, opacity 0.25s ease, padding 0.35s ease;
  }

  .nav-menu.is-open {
    max-height: 70vh;
    opacity: 1;
    pointer-events: auto;
    padding-block: 8px 16px;
  }

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

  .nav-menu li a {
    display: block;
    padding: 16px 0;
    font-size: 17px;
    border-bottom: 1px solid var(--border);
    text-align: right;
  }

  .nav-menu li:last-child a {
    border-bottom: none;
  }

  .nav-menu li a::after {
    display: none;
  }
}