/**
 * 🧭 BotEnSky Navigation Styles
 * Modern header, mobile menu, glassmorphism
 */

/* ========================================
   📱 HEADER CONTAINER
   ======================================== */

.bes-header {
  position: sticky;
  top: 0;
  z-index: var(--bes-z-sticky);
  width: 100%;
  padding: var(--bes-space-4) 0;
  transition: all var(--bes-duration-base) var(--bes-ease-in-out);
}

.bes-header.scrolled {
  padding: var(--bes-space-3) 0;
  box-shadow: var(--bes-shadow-md);
}

.bes-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bes-space-6);
}

/* ========================================
   🎨 BRAND / LOGO
   ======================================== */

.bes-brand-link {
  text-decoration: none;
  display: block;
  transition: var(--bes-transition-fast);
}

.bes-brand-link:hover {
  transform: scale(1.05);
  text-decoration: none;
}

.bes-logo {
  display: flex;
  align-items: center;
  gap: var(--bes-space-2);
}

.bes-logo-icon {
  width: 28px;
  height: 28px;
  color: var(--bes-primary);
  stroke-width: 2.5;
}

.bes-brand-name {
  font-family: var(--bes-font-display);
  font-size: var(--bes-text-xl);
  font-weight: var(--bes-font-bold);
  color: var(--bes-text-primary);
  letter-spacing: -0.02em;
}

/* ========================================
   🔗 NAVIGATION LINKS (Desktop)
   ======================================== */

.bes-nav-links {
  display: none; /* Hidden on mobile */
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--bes-space-2);
}

.bes-nav-item {
  position: relative;
}

.bes-nav-link {
  display: flex;
  align-items: center;
  gap: var(--bes-space-2);
  padding: var(--bes-space-2) var(--bes-space-4);
  font-size: var(--bes-text-base);
  font-weight: var(--bes-font-medium);
  color: var(--bes-text-secondary);
  text-decoration: none;
  border-radius: var(--bes-radius-base);
  transition: var(--bes-transition-fast);
  position: relative;
}

.bes-nav-link:hover {
  color: var(--bes-primary);
  background-color: rgba(var(--bes-primary-rgb), 0.08);
  text-decoration: none;
}

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

/* Animated underline for active link */
.bes-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--bes-space-4);
  right: var(--bes-space-4);
  height: 2px;
  background: var(--bes-primary);
  border-radius: 2px;
  animation: slideInLeft var(--bes-duration-base) var(--bes-ease-out);
}

.bes-nav-icon {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

/* Desktop view */
@media (min-width: 768px) {
  .bes-nav-links {
    display: flex;
  }
}

/* ========================================
   ⚡ ACTIONS (Language + Dark Mode)
   ======================================== */

.bes-nav-actions {
  display: flex;
  align-items: center;
  gap: var(--bes-space-3);
}

/* Language Switcher */
.bes-lang-switcher {
  display: flex;
  gap: var(--bes-space-2);
  padding: var(--bes-space-1);
  background: rgba(var(--bes-primary-rgb), 0.05);
  border-radius: var(--bes-radius-base);
}

.bes-lang-btn {
  display: flex;
  align-items: center;
  gap: var(--bes-space-2);
  padding: var(--bes-space-2);
  background: transparent;
  border: none;
  border-radius: var(--bes-radius-sm);
  cursor: pointer;
  transition: var(--bes-transition-fast);
}

.bes-lang-btn:hover {
  background: rgba(var(--bes-primary-rgb), 0.1);
  transform: scale(1.05);
}

.bes-flag-icon {
  width: 20px;
  height: 15px;
  border-radius: 2px;
  box-shadow: var(--bes-shadow-sm);
}

/* Dark Mode Toggle */
.bes-theme-toggle {
  padding: var(--bes-space-2);
  border: 1px solid var(--bes-border-light);
  background: var(--bes-surface-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--bes-radius-base);
  cursor: pointer;
  transition: var(--bes-transition-fast);
}

.bes-theme-toggle:hover {
  background: var(--bes-surface-hover);
  border-color: var(--bes-primary);
  transform: rotate(15deg) scale(1.05);
}

.bes-theme-icon {
  width: 20px;
  height: 20px;
  color: var(--bes-text-primary);
  stroke-width: 2;
}

/* ========================================
   🍔 MOBILE MENU TOGGLE (Hamburger)
   ======================================== */

.bes-mobile-menu-toggle {
  display: flex;
  padding: var(--bes-space-2);
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: calc(var(--bes-z-modal) + 10);
}

@media (min-width: 768px) {
  .bes-mobile-menu-toggle {
    display: none;
  }
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  height: 20px;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--bes-text-primary);
  border-radius: 2px;
  transition: all var(--bes-duration-base) var(--bes-ease-in-out);
  transform-origin: center;
}

/* Hamburger → X animation */
.bes-mobile-menu-toggle.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.bes-mobile-menu-toggle.open .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.bes-mobile-menu-toggle.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   📱 MOBILE MENU
   ======================================== */

/* Overlay */
.bes-mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--bes-duration-base) var(--bes-ease-in-out);
  z-index: var(--bes-z-modal-backdrop);
}

.bes-mobile-menu-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* Mobile Menu Panel */
.bes-mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 85%;
  max-width: 400px;
  height: 100vh;
  background: var(--bes-surface-glass);
  backdrop-filter: blur(20px) saturate(200%);
  -webkit-backdrop-filter: blur(20px) saturate(200%);
  border-left: 1px solid var(--bes-border-light);
  box-shadow: var(--bes-shadow-2xl);
  transform: translateX(100%);
  transition: transform var(--bes-duration-base) var(--bes-ease-in-out);
  z-index: var(--bes-z-modal);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

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

[data-theme="dark"] .bes-mobile-menu {
  background: rgba(13, 27, 42, 0.95);
  border-left-color: var(--bes-border-medium);
}

/* Mobile Menu Header */
.bes-mobile-menu-header {
  padding: var(--bes-space-6);
  border-bottom: 1px solid var(--bes-border-light);
}

.bes-mobile-menu-header .bes-brand {
  display: flex;
  align-items: center;
  gap: var(--bes-space-2);
}

/* Mobile Menu Links */
.bes-mobile-menu-links {
  flex: 1;
  list-style: none;
  margin: 0;
  padding: var(--bes-space-4);
  display: flex;
  flex-direction: column;
  gap: var(--bes-space-2);
}

.bes-mobile-menu-link {
  display: flex;
  align-items: center;
  gap: var(--bes-space-3);
  padding: var(--bes-space-4);
  font-size: var(--bes-text-lg);
  font-weight: var(--bes-font-medium);
  color: var(--bes-text-secondary);
  text-decoration: none;
  border-radius: var(--bes-radius-md);
  transition: var(--bes-transition-fast);
}

.bes-mobile-menu-link:hover {
  color: var(--bes-primary);
  background: rgba(var(--bes-primary-rgb), 0.1);
  text-decoration: none;
  transform: translateX(5px);
}

.bes-mobile-menu-link.active {
  color: var(--bes-primary);
  background: rgba(var(--bes-primary-rgb), 0.15);
  font-weight: var(--bes-font-semibold);
}

.bes-mobile-menu-link i {
  width: 24px;
  height: 24px;
  stroke-width: 2;
}

/* Mobile Menu Footer */
.bes-mobile-menu-footer {
  padding: var(--bes-space-6);
  border-top: 1px solid var(--bes-border-light);
}

.bes-mobile-menu-actions {
  display: flex;
  flex-direction: column;
  gap: var(--bes-space-4);
}

.bes-mobile-menu-footer .bes-lang-switcher {
  flex-direction: column;
  padding: 0;
  background: transparent;
}

.bes-mobile-menu-footer .bes-lang-btn {
  justify-content: flex-start;
  padding: var(--bes-space-3) var(--bes-space-4);
  border: 1px solid var(--bes-border-light);
  background: var(--bes-surface-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--bes-radius-base);
  font-size: var(--bes-text-base);
  font-weight: var(--bes-font-medium);
  color: var(--bes-text-primary);
}

.bes-mobile-menu-footer .bes-lang-btn span {
  flex: 1;
  text-align: left;
}

/* ========================================
   🎨 THEME TRANSITION SMOOTH
   ======================================== */

body.theme-transitioning,
body.theme-transitioning * {
  transition: background-color var(--bes-duration-base) var(--bes-ease-in-out),
              color var(--bes-duration-base) var(--bes-ease-in-out),
              border-color var(--bes-duration-base) var(--bes-ease-in-out) !important;
}

/* ========================================
   📱 RESPONSIVE
   ======================================== */

@media (max-width: 767px) {
  .bes-nav-actions .bes-lang-switcher {
    display: none; /* Language only in mobile menu */
  }
}

@media (max-width: 480px) {
  .bes-mobile-menu {
    width: 100%;
    max-width: none;
  }
  
  .bes-brand-name {
    font-size: var(--bes-text-lg);
  }
}