/* ============================================
   THEME TOGGLE COMPONENT
   Light/Dark Mode Switcher
   ============================================ */

.theme-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-surface);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 1002;
}

.theme-toggle:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-gold);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-shadow-md);
}

.theme-toggle:active {
  transform: translateY(0);
}

/* Toggle Icon */
.theme-toggle-icon {
  position: relative;
  width: 20px;
  height: 20px;
  color: var(--color-text-primary);
  transition: all 0.3s ease;
}

/* Sun Icon (Light Mode) */
.theme-icon-sun {
  display: block;
  opacity: 1;
  transform: rotate(0deg) scale(1);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

[data-theme="dark"] .theme-icon-sun {
  opacity: 0;
  transform: rotate(180deg) scale(0);
}

/* Moon Icon (Dark Mode) */
.theme-icon-moon {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  opacity: 0;
  transform: rotate(-180deg) scale(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

[data-theme="dark"] .theme-icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* SVG Icons Styling */
.theme-toggle svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Tooltip */
.theme-toggle::after {
  content: attr(aria-label);
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%) scale(0);
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-family: var(--font-body);
  white-space: nowrap;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px var(--color-shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1003;
}

.theme-toggle:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* Desktop Navigation Position */
@media (min-width: 1024px) {
  .theme-toggle {
    margin-left: var(--space-6);
  }
}

/* Mobile - In Mobile Menu */
@media (max-width: 1023px) {
  .theme-toggle-mobile {
    position: absolute;
    top: var(--space-6);
    right: var(--space-20);
  }
}

/* Accessibility Focus State */
.theme-toggle:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* Loading State (Optional) */
.theme-toggle.loading {
  pointer-events: none;
  opacity: 0.6;
}

.theme-toggle.loading .theme-toggle-icon {
  animation: rotate 1s linear infinite;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .theme-toggle,
  .theme-toggle-icon,
  .theme-icon-sun,
  .theme-icon-moon {
    transition: none;
  }
  
  .theme-toggle.loading .theme-toggle-icon {
    animation: none;
  }
}