/* Modern Clean Navbar Styles */

/* CSS Variables for consistent theming */
:root {
  --navbar-height: 80px;
  --navbar-bg: transparent;
  --navbar-bg-dark: transparent;
  --navbar-text: #1f2937;
  --navbar-text-dark: #f9fafb;
  --navbar-text-hover: #6366f1;
  --navbar-border: rgba(229, 231, 235, 0.1);
  --navbar-border-dark: rgba(75, 85, 99, 0.1);
  --navbar-shadow: none;
  --navbar-shadow-dark: none;
  --dropdown-bg: rgba(255, 255, 255, 0.98);
  --dropdown-bg-dark: rgba(17, 24, 39, 0.98);
  --dropdown-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --dropdown-shadow-dark: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

/* Dark mode variables */
.dark {
  --navbar-bg: var(--navbar-bg-dark);
  --navbar-text: var(--navbar-text-dark);
  --navbar-border: var(--navbar-border-dark);
  --navbar-shadow: var(--navbar-shadow-dark);
  --dropdown-bg: var(--dropdown-bg-dark);
  --dropdown-shadow: var(--dropdown-shadow-dark);
}

/* Base navbar styles */
.navbar-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.navbar {
  background: var(--navbar-bg);
  border-bottom: 1px solid var(--navbar-border);
  box-shadow: var(--navbar-shadow);
  transition: all var(--transition-normal);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo styles */
.navbar-brand {
  flex-shrink: 0;
}

.navbar-logo {
  display: block;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.navbar-logo:hover {
  transform: scale(1.05);
}

.navbar-logo-img {
  height: 50px;
  width: auto;
  transition: opacity var(--transition-normal);
}

/* Mobile adjustments for logo */
@media (max-width: 1023px) {
  .navbar-logo-img {
    height: 60px;
  }
}

.dark-logo {
  display: none;
}

.dark .dark-logo {
  display: block;
}

.dark .light-logo {
  display: none;
}

/* Desktop navigation */
.desktop-nav {
  display: flex;
  align-items: center;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  display: block;
  padding: 0.75rem 0;
  color: var(--navbar-text);
  text-decoration: none;
  font-family: 'Satoshi', system-ui, sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.025em;
  transition: all var(--transition-normal);
  position: relative;
}

.navbar-link:hover {
  color: var(--navbar-text-hover);
  transform: translateY(-1px);
}

.navbar-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #6366f1, #8b5cf6);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.navbar-link:hover::after {
  width: 100%;
}

/* Dropdown styles */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  background: var(--dropdown-bg);
  border: 1px solid var(--navbar-border);
  border-radius: 12px;
  box-shadow: var(--dropdown-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-list {
  padding: 0.75rem;
  list-style: none;
  margin: 0;
}

.dropdown-item {
  margin: 0;
}

.dropdown-link {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--navbar-text);
  text-decoration: none;
  font-family: 'Satoshi', system-ui, sans-serif;
  font-weight: 400;
  font-size: 0.9rem;
  border-radius: 8px;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.dropdown-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
  transition: left var(--transition-slow);
}

.dropdown-link:hover::before {
  left: 100%;
}

.dropdown-link:hover {
  background: rgba(99, 102, 241, 0.08);
  color: var(--navbar-text-hover);
  transform: translateX(4px);
}

/* Mobile toggle button */
.navbar-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-right: 0 !important;
  position: relative;
  right: -15px;
  transition: all var(--transition-fast);
}

.navbar-toggle:hover {
  transform: scale(1.05);
}

.navbar-toggle-line {
  width: 24px;
  height: 2px;
  background: var(--navbar-text);
  margin: 2px 0;
  transition: all var(--transition-normal);
  transform-origin: center;
}

.navbar-toggle[aria-expanded="true"] .navbar-toggle-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar-toggle[aria-expanded="true"] .navbar-toggle-line:nth-child(2) {
  opacity: 0;
}

.navbar-toggle[aria-expanded="true"] .navbar-toggle-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile menu overlay */
.navbar-mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 9999;
  overflow: hidden;
}

.navbar-mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

.navbar-mobile-content {
  position: relative;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.98);
  transform: scale(0.95);
  opacity: 0;
  transition: all var(--transition-normal);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
}

.dark .navbar-mobile-content {
  background: rgba(17, 24, 39, 0.98);
}

.navbar-mobile-overlay.active .navbar-mobile-content {
  transform: scale(1);
  opacity: 1;
}

.navbar-mobile-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--navbar-border);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.navbar-mobile-logo {
  display: block;
  text-decoration: none;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

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

.navbar-mobile-close {
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--navbar-text);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  right: 1.5rem;
  z-index: 10;
}

.navbar-mobile-close:hover {
  transform: scale(1.1);
  color: var(--navbar-text-hover);
}

.navbar-mobile-menu {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.navbar-mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.navbar-mobile-item {
  margin-bottom: 1rem;
}

.navbar-mobile-link {
  display: block;
  padding: 1.25rem 1.5rem;
  color: var(--navbar-text);
  text-decoration: none;
  font-family: 'Satoshi', system-ui, sans-serif;
  font-weight: 500;
  font-size: 1.5rem;
  transition: all var(--transition-normal);
  position: relative;
  border-radius: 12px;
}

.navbar-mobile-link:hover,
.navbar-mobile-link:active {
  color: var(--navbar-text-hover);
  background: rgba(99, 102, 241, 0.1);
  transform: scale(1.05);
}

.navbar-mobile-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #6366f1, #8b5cf6);
  transition: width var(--transition-normal);
}

.navbar-mobile-link:hover::after {
  width: 100%;
}

/* Mobile dropdown styles */
.mobile-dropdown {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.mobile-dropdown.active {
  max-height: 500px;
}

.mobile-dropdown-list {
  padding-left: 1rem;
  margin-top: 0.5rem;
  list-style: none;
}

.mobile-dropdown-item {
  margin-bottom: 0.25rem;
}

.mobile-dropdown-link {
  display: block;
  padding: 0.75rem 0;
  color: var(--navbar-text);
  text-decoration: none;
  font-family: 'Satoshi', system-ui, sans-serif;
  font-weight: 400;
  font-size: 0.95rem;
  opacity: 0.8;
  transition: all var(--transition-normal);
}

.mobile-dropdown-link:hover {
  color: var(--navbar-text-hover);
  opacity: 1;
  transform: translateX(4px);
}

/* Theme toggle styles */
.theme-toggle {
  position: fixed;
  bottom: 1.5rem;
  right: 1rem;
  z-index: 1000;
}

@media (min-width: 768px) {
  .theme-toggle {
    bottom: 2rem;
    right: 2rem;
  }
}

.theme-toggle-btn {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--navbar-border);
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: var(--navbar-shadow);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.dark .theme-toggle-btn {
  background: rgba(30, 30, 30, 0.9);
  border-color: rgba(255, 255, 255, 0.15);
}

.theme-toggle-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.theme-icon {
  width: 20px;
  height: 20px;
  color: var(--navbar-text);
  transition: all var(--transition-normal);
}

.theme-icon-dark {
  display: none;
}

/* In dark mode, show sun (light icon) so user knows clicking switches to light */
.dark .theme-icon-light {
  display: block;
}

.dark .theme-icon-dark {
  display: none;
}

/* In light mode, show moon (dark icon) so user knows clicking switches to dark */
.theme-icon-light {
  display: none;
}

:not(.dark) .theme-icon-dark {
  display: block;
}

/* Responsive design */
@media (max-width: 1023px) {
  .desktop-nav {
    display: none;
  }
  
  .navbar-toggle {
    display: flex;
    right: -15px !important;
  }
  
  .navbar-container {
    padding: 0 1rem;
  }
  
  .navbar-logo-img {
    height: 70px !important;
    width: auto !important;
  }
}

@media (min-width: 1024px) {
  .navbar-toggle {
    display: none;
  }
  
  .navbar-mobile-overlay {
    display: none;
  }
}

/* Focus states for accessibility */
.navbar-link:focus,
.dropdown-link:focus,
.navbar-mobile-link:focus,
.mobile-dropdown-link:focus,
.navbar-toggle:focus,
.navbar-mobile-close:focus,
.theme-toggle-btn:focus {
  outline: 2px solid var(--navbar-text-hover);
  outline-offset: 2px;
}

/* Smooth animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dropdown.active {
  animation: fadeInUp 0.3s ease-out;
}

/* Loading state */
.navbar-menu.loading {
  opacity: 0.5;
  pointer-events: none;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --navbar-border: rgba(0, 0, 0, 0.3);
    --navbar-border-dark: rgba(255, 255, 255, 0.3);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* Footer social icons */
footer .footer-social {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 2rem auto 0;
  padding: 0;
  width: 100%;
}

footer .footer-social li {
  display: flex;
  margin: 0;
  padding: 0;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.footer-social a:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.footer-social img {
  display: block;
  width: auto;
  height: auto;
}