/* ============================================================================
   PLEXUSOFT WEBSITE - NAVIGATION STYLES
   Header, navigation menu, mobile menu
   ============================================================================ */

/* ===== HEADER ===== */
header {
  position: sticky;
  top: 0;
  z-index: var(--z-fixed);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

header.scrolled {
  box-shadow: var(--shadow-md);
}

header.hidden {
  transform: translateY(-100%);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--container-padding);
  max-width: var(--container-max-width);
  margin: 0 auto;
}

/* ===== LOGO ===== */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
  text-decoration: none;
}

.logo img {
  height: 40px;
  width: auto;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
}

/* ===== NAVIGATION ===== */
nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-navy);
  background: var(--color-gray-50);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-navy);
  font-weight: var(--font-weight-semibold);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-3);
  right: var(--space-3);
  height: 2px;
  background: var(--color-navy);
}

/* ===== DROPDOWN MENU (Infoblox-style) ===== */
.nav-item {
  position: relative;
}

.nav-item.has-dropdown > .nav-link::after {
  content: '▼';
  font-size: 0.7em;
  margin-left: 0.25rem;
  display: inline-block;
  transition: transform 0.2s ease;
}

.nav-item.has-dropdown:hover > .nav-link::after {
  transform: rotate(180deg);
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: var(--spacing-sm) 0;
  margin-top: var(--spacing-xs);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease;
  z-index: var(--z-dropdown);
  list-style: none;
  margin-left: 0;
}

.nav-item.has-dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown li {
  margin: 0;
}

.dropdown a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-gray-700);
  text-decoration: none;
  transition: all 0.15s ease;
  font-size: var(--font-size-base);
}

.dropdown a:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
  text-decoration: none;
}

.btn-nav-cta {
  background: var(--color-primary) !important;
  color: var(--color-secondary) !important;
  padding: var(--spacing-xs) var(--spacing-md) !important;
  border-radius: var(--border-radius) !important;
  margin-left: var(--spacing-sm);
}

.btn-nav-cta:hover {
  background: var(--color-accent-light) !important;
  text-decoration: none !important;
}

/* ===== MOBILE MENU BUTTON ===== */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  z-index: var(--z-fixed);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--color-navy);
  transition: all var(--transition-base);
}

.mobile-menu-btn.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.open span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== MOBILE MENU ===== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: var(--z-modal);
  padding: var(--space-20) var(--space-6);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-menu-link {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-navy);
  text-decoration: none;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-gray-200);
  display: block;
}

.mobile-menu-link:hover {
  background: var(--color-gray-50);
  text-decoration: none;
}

body.menu-open {
  overflow: hidden;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 767px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .mobile-menu {
    display: block;
  }
}

/* ===== FOOTER ===== */
footer {
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);  /* 3-column layout (Infoblox-style) */
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

.footer-section h3 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.footer-section a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-section ul li a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-8);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

.footer-social {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}