/* =====================================
   Navigation Styles
   Sticky navbar with dropdown menus
   ===================================== */

/* Main Navigation Container */
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  background: var(--navbar-bg);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-lg);
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Logo */
.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--black);
  transition: transform var(--transition-fast);
}

.navbar-logo:hover {
  transform: scale(1.02);
  color: var(--black);
}

.navbar-logo img {
  height: 50px;
  width: auto;
}

/* Navigation Menu */
.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.navbar-menu > ul {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Menu Items */
.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-sm) var(--space-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--dark-gray);
  transition: color var(--transition-fast);
  cursor: pointer;
  position: relative;
}

/* Reset button styles for dropdown toggles */
button.nav-link {
  background: none;
  border: none;
  font-family: inherit;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--gradient-primary);
  transition: transform var(--transition-base);
}

.nav-link:hover {
  color: var(--primary-blue);
}

.nav-link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

/* Dropdown Arrow */
.nav-link .dropdown-arrow {
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.nav-link .dropdown-arrow i {
  font-size: inherit;
}

.nav-item.active .dropdown-arrow,
.nav-item:hover .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 250px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity var(--transition-base),
              transform var(--transition-base),
              visibility var(--transition-base);
  z-index: var(--z-dropdown);
  overflow: hidden;
}

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

.dropdown-menu ul {
  padding: var(--space-xs);
}

.dropdown-item {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.95rem;
  color: var(--dark-gray);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.dropdown-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--light-gray);
  color: var(--primary-blue);
  padding-left: calc(var(--space-md) + 8px);
}

.dropdown-item:hover::before {
  transform: scaleY(1);
}

/* Client Login Button */
.btn-client-login {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--gradient-primary);
  color: #FFFFFF;
  font-weight: 600;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-blue);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
}

.btn-client-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(30, 144, 255, 0.4);
  color: #FFFFFF;
}

.btn-client-login:active {
  transform: translateY(0);
}

/* Theme Toggle Button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-primary);
  font-size: 1.25rem;
  transition: all var(--transition-fast);
  margin-right: 12px;
}

.theme-toggle:hover {
  background: var(--bg-secondary);
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}
/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  z-index: calc(var(--z-sticky) + 10);
}

.mobile-menu-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--dark-gray);
  border-radius: 3px;
  transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

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

/* Mobile Navigation Styles */
@media (max-width: 992px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .navbar-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    height: calc(100vh - 80px);
    background: var(--bg-primary);
    backdrop-filter: blur(10px);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-md);
    overflow-y: auto;
    overflow-x: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-100%);
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
    -webkit-overflow-scrolling: touch;
    z-index: 999;
  }

  .navbar-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }

  .navbar-menu > ul {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--light-gray);
  }

  .nav-link {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 1rem;
  }

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

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: var(--light-gray);
    margin-top: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }

  .nav-item.active .dropdown-menu {
    max-height: 500px;
  }

  .dropdown-menu ul {
    padding: 0;
  }

  .dropdown-item {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.95rem;
  }

  .btn-client-login {
    width: calc(100% - var(--space-md) * 2);
    justify-content: center;
    margin: var(--space-md) auto 0;
    padding: var(--space-sm) var(--space-md);
    font-size: 1rem;
  }
}

/* Tablet adjustments */
@media (max-width: 768px) {
  .navbar-container {
    height: 70px;
    padding: 0 var(--space-sm);
  }

  .navbar-logo img {
    height: 40px;
  }

  .navbar-menu {
    top: 70px;
  }
}

/* ========== DARK MODE OVERRIDES ========== */

[data-theme="dark"] .navbar {
  background: var(--navbar-bg);
}

[data-theme="dark"] .navbar-logo {
  color: var(--text-heading);
}

[data-theme="dark"] .nav-link {
  color: var(--text-primary);
}

[data-theme="dark"] .nav-link:hover {
  color: var(--primary-blue);
}

[data-theme="dark"] .dropdown-menu {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .dropdown-item {
  color: var(--text-primary);
}

[data-theme="dark"] .dropdown-item:hover {
  background: var(--bg-secondary);
  color: var(--primary-blue);
}

[data-theme="dark"] .mobile-menu-toggle span {
  background: var(--text-primary);
}

@media (max-width: 992px) {
  [data-theme="dark"] .dropdown-menu {
    background: var(--bg-secondary);
  }

  [data-theme="dark"] .nav-item {
    border-bottom-color: var(--border-color);
  }
}