/* ============================================
   Navigation
   ============================================ */

#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-normal);
}

#navbar.scrolled {
  padding: 12px 32px;
  background: rgba(10, 10, 15, 0.95);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
  color: var(--text1);
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-1);
  border-radius: 10px;
  font-weight: 900;
  font-size: 18px;
  color: white;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text2);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text1);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Picker */
.lang-picker {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text1);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 8px;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  max-height: 300px;
  overflow-y: auto;
}

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

.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  transition: background var(--transition-fast);
}

.lang-option:hover {
  background: var(--surface-hover);
}

.lang-flag {
  font-size: 16px;
}

/* Responsive Nav */
@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }
}

@media (max-width: 640px) {
  #navbar {
    padding: 12px 16px;
  }
  
  .nav-right .btn-ghost {
    display: none;
  }
}