/* navbar.css - Premium Header and Sticky Navigation */

.df-navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 90px;
  display: flex;
  align-items: center;
  z-index: 99;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-normal), border-color var(--transition-normal), backdrop-filter var(--transition-normal), height var(--transition-normal);
}

.df-navbar-sticky {
  height: 70px;
  background-color: rgba(6, 9, 25, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.df-navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.df-navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

.df-navbar-logo-img {
  height: 64px;
  width: auto;
  object-fit: contain;
  transition: height var(--transition-normal);
}

.df-navbar-sticky .df-navbar-logo-img {
  height: 48px;
}

.df-logo-icon {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-green);
  border: 1px solid rgba(16, 185, 129, 0.2);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow-green);
}

.df-logo-icon i {
  width: 20px;
  height: 20px;
}

.df-logo-text {
  color: var(--color-text-primary);
}

/* Center Links */
.df-navbar-links {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-green);
  border-radius: 2px;
}

/* Right Actions */
.df-navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Search Box */
.df-nav-search {
  position: relative;
  display: flex;
  align-items: center;
}

.df-nav-search input {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  padding: 6px 12px 6px 32px;
  border-radius: 9999px;
  font-size: 0.85rem;
  color: var(--color-text-primary);
  width: 150px;
  transition: width var(--transition-normal), border-color var(--transition-fast);
}

.df-nav-search input:focus {
  width: 200px;
  border-color: var(--color-green);
  background-color: rgba(255, 255, 255, 0.05);
}

.df-nav-search i {
  position: absolute;
  left: 10px;
  width: 16px;
  height: 16px;
  color: var(--color-text-secondary);
  pointer-events: none;
}

/* Language Dropdown */
.df-lang-switcher {
  position: relative;
}

.df-lang-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.df-lang-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-secondary);
}

.df-lang-btn i {
  width: 15px;
  height: 15px;
}

.df-lang-btn .chevron {
  transition: transform var(--transition-fast);
}

.df-lang-btn.active .chevron {
  transform: rotate(180deg);
}

.df-lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px;
  display: none;
  flex-direction: column;
  min-width: 120px;
  box-shadow: var(--shadow-md);
  z-index: 101;
}

.df-lang-dropdown.show {
  display: flex;
}

.lang-option {
  padding: 6px 10px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  border-radius: 4px;
}

.lang-option:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-text-primary);
}

.lang-option.active {
  color: var(--color-green);
  font-weight: 600;
}

/* Auth links */
.df-nav-login {
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 6px var(--spacing-xs);
}

.df-nav-login:hover {
  color: var(--color-text-primary);
}

.df-nav-register {
  padding: 0.5rem 1.25rem !important;
  font-size: 0.9rem;
}

/* Mobile Toggle */
.df-mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  z-index: 102;
}

.df-mobile-toggle .bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Responsive Rules */
@media (max-width: 992px) {
  .df-mobile-toggle {
    display: flex;
  }
  
  .df-navbar-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-bg-surface);
    border-left: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px var(--spacing-md) var(--spacing-md) var(--spacing-md);
    gap: var(--spacing-md);
    transition: right var(--transition-normal);
    z-index: 100;
  }

  .df-navbar-links.active {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.1rem;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: var(--spacing-xs);
  }

  .nav-link.active::after {
    bottom: -1px;
  }
  
  .df-nav-search {
    display: none;
  }
}

@media (max-width: 576px) {
  .df-lang-switcher span {
    display: none;
  }
  .df-nav-login {
    display: none;
  }
}

/* Hamburger animations */
.df-mobile-toggle.active .bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.df-mobile-toggle.active .bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}