/* =========================================================
   PAGE-CATALOG-NAVBAR.CSS
   Xpress Vending – Elegant Responsive Navbar
   Uses design tokens from core-u.css
   ========================================================= */


/* =========================================================
   1. HEADER BASE
   ========================================================= */

   .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
  
    background: transparent;
    transition:
      background var(--transition-normal),
      box-shadow var(--transition-normal),
      padding var(--transition-normal);
  }
  
  .site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) 20px;
    min-height: 72px;
    transition: padding var(--transition-normal);
    background-color: var(--color-white);
    padding-bottom: 10px;
  }
  
  
  /* =========================================================
     2. SCROLLED STATE (Glass → Solid)
     ========================================================= */
  
  .site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
  }
  
  .site-header.is-scrolled .container {
    padding: var(--space-2) 0;
  }
  
  
  /* =========================================================
     3. LOGO
     ========================================================= */
  
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
  }
  
  .logo-icon {
    height: 40px;
    width: auto;
    transition: height var(--transition-normal);
  }
  
  .logo-text {
    height: 30px;
    width: auto;
    transition: height var(--transition-normal), opacity var(--transition-fast);
  }
  
  .site-header.is-scrolled .logo-icon {
    height: 34px;
  }
  
  .site-header.is-scrolled .logo-text {
    height: 24px;
  }
  
  
  /* =========================================================
     4. DESKTOP NAVIGATION
     ========================================================= */
  
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }
  
  .nav-desktop a {
    position: relative;
    font-weight: 600;
    font-size: var(--font-size-md);
    color: var(--color-primary-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
  }
  
  /* Underline animation */
  .nav-desktop a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0%;
    height: 2px;
    background: var(--color-primary-cyan);
    transition: width var(--transition-normal);
  }
  
  .nav-desktop a:hover {
    color: var(--color-primary-cyan);
  }
  
  .nav-desktop a:hover::after {
    width: 100%;
  }
  
  
  /* Dark mode when scrolled */
  .site-header.is-scrolled .nav-desktop a {
    color: var(--color-primary-dark);
  }
  
  .site-header.is-scrolled .nav-desktop a:hover {
    color: var(--color-primary-teal);
  }
  
  
  /* =========================================================
     5. CTA BUTTON
     ========================================================= */
  
  .nav-cta {
    background: var(--color-primary-cyan);
    color: var(--color-white) !important;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
    transition:
      background var(--transition-fast),
      transform var(--transition-fast),
      box-shadow var(--transition-fast);
  }
  
  .nav-cta:hover {
    background: var(--color-primary-teal);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }
  
  .site-header.is-scrolled .nav-cta {
    box-shadow: var(--shadow-sm);
  }
  
  
  /* =========================================================
     6. MOBILE TOGGLE (Hamburger)
     ========================================================= */
  
  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1100;
  }
  
  .nav-toggle span {
    height: 3px;
    width: 100%;
    background: var(--color-white);
    border-radius: 3px;
    transition: background var(--transition-fast);
  }
  
  .site-header.is-scrolled .nav-toggle span {
    background: var(--color-primary-dark);
  }
  
  
  /* =========================================================
     7. MOBILE DRAWER
     ========================================================= */
  
  .mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100%;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    padding: var(--space-5) var(--space-3);
    transition: right var(--transition-normal);
    z-index: 1200;
  }
  
  .mobile-drawer.open {
    right: 0;
  }
  
  .mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-4);
  }
  
  .mobile-nav a {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary-dark);
    padding-bottom: var(--space-1);
    border-bottom: 1px solid var(--border-default);
    transition: color var(--transition-fast);
  }
  
  .mobile-nav a:hover {
    color: var(--color-primary-teal);
  }
  
  
  /* =========================================================
     8. OVERLAY
     ========================================================= */
  
  .drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal);
    z-index: 1100;
  }
  
  .drawer-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  
  /* Prevent background scroll when drawer is open */
  html.drawer-open {
    position: fixed;
    width: 100%;
    overflow: hidden;
    touch-action: none;
  }
  
  
  /* =========================================================
     9. RESPONSIVE BREAKPOINT
     ========================================================= */
  
  @media (max-width: 900px) {
  
    .nav-desktop {
      display: none;
    }
  
    .nav-toggle {
      display: flex;
    }
  
  }
  


/* Full-width 1px bottom border / subtle shadow for navbar */
.site-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-primary-cyan); /* change color if needed */
  pointer-events: none;
  z-index: 1001;
}