/**
 * Nitrus Navigation Styles
 * @package Nitrus
 */

/* Mega Menu */
.has-mega-menu { position: static; }
.mega-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-8) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: var(--z-overlay);
}
.has-mega-menu:hover .mega-menu,
.has-mega-menu:focus-within .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-menu__inner {
  max-width: var(--container-xl);
  margin: auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.mega-menu__col h4 {
  font-family: var(--font-primary);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--nitrus-accent);
  margin-bottom: var(--space-4);
}
.mega-menu__col ul { list-style: none; padding: 0; margin: 0; }
.mega-menu__col ul li { margin-bottom: var(--space-2); }
.mega-menu__col ul a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.mega-menu__col ul a:hover { color: var(--nitrus-accent); }

/* Standard Dropdown */
.primary-nav .sub-menu {
  position: absolute;
  top: calc(100% + 1rem);
  left: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2);
  min-width: 200px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  z-index: var(--z-overlay);
  box-shadow: var(--shadow-xl);
}
.primary-nav > li { position: relative; }
.primary-nav > li:hover .sub-menu,
.primary-nav > li:focus-within .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.primary-nav .sub-menu a {
  display: block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}
.primary-nav .sub-menu a::after { display: none; }
.primary-nav .sub-menu a:hover { background: var(--nitrus-accent-muted); }

/* Header Variants */

/* Centered Logo */
.site-header--centered .site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}
.site-header--centered .site-logo {
  grid-column: 2;
  justify-self: center;
}
.site-header--centered .site-nav { grid-column: 1; justify-self: start; }
.site-header--centered .header-actions { grid-column: 3; justify-self: end; }

/* Fullwidth header */
.site-header--fullwidth .site-header__inner { max-width: 100%; }

/* Split header (logo left, nav right, no CTA in center) */
.site-header--split .site-logo { margin-right: auto; }

/* Transparent header (homepage use) */
.site-header--transparent-light .primary-nav a { color: rgba(255,255,255,0.85); }
.site-header--transparent-light .site-logo .logo-nitr { color: #ffffff; }

/* Sidebar Nav Variants */
.sidebar-nav--hover {
  width: 72px;
  overflow: hidden;
  transition: width var(--transition-base);
}
.sidebar-nav--hover:hover { width: var(--sidebar-width); }
.sidebar-nav--hover .sidebar-nav__menu a span { opacity: 0; transition: opacity var(--transition-fast); }
.sidebar-nav--hover:hover .sidebar-nav__menu a span { opacity: 1; }

/* Sidebar overlay variant */
.sidebar-nav--overlay {
  position: fixed;
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
}
.sidebar-nav--overlay.open { transform: translateX(0); }

/* Pagination */
.nitrus-pagination {
  margin-top: var(--space-12);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}
.nitrus-pagination .page-numbers {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-weight: var(--weight-bold);
  font-size: var(--text-sm);
  text-decoration: none;
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
  transition: all var(--transition-fast);
}
.nitrus-pagination .page-numbers:hover,
.nitrus-pagination .page-numbers.current {
  background: var(--nitrus-accent);
  color: #0a0a0a;
  border-color: var(--nitrus-accent);
}
.nitrus-pagination .page-numbers.dots { border: none; }