/* Theme System - Dark/Light Mode Toggle */

/* Enhanced theme transitions */
html {
  transition: background-color var(--transition-medium), color var(--transition-medium);
}

body,
.navbar,
.modal,
.service-card,
.stat-card,
.logo-item,
input,
select,
button {
  transition: 
    background-color var(--transition-medium),
    color var(--transition-medium),
    border-color var(--transition-medium);
}

/* Dark Theme (Default) */
[data-theme="dark"] {
  --color-bg-primary: #0a0a0b;
  --color-bg-secondary: #1a1a1b;
  --color-bg-tertiary: #252526;
  --color-text-primary: #f5f5f5;
  --color-text-secondary: #a0a0a0;
  --color-text-muted: #6b6b6b;
  --color-border: #2a2a2b;
  --color-border-light: #3a3a3b;
}

/* Light Theme */
[data-theme="light"] {
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #e9ecef;
  --color-text-primary: #1a1a1b;
  --color-text-secondary: #6b6b6b;
  --color-text-muted: #9ca3af;
  --color-border: #e5e7eb;
  --color-border-light: #d1d5db;
}

/* Theme toggle button styles */
.theme-toggle {
  position: relative;
  overflow: hidden;
}

.theme-toggle .theme-icon {
  transition: transform var(--transition-medium);
  display: inline-block;
}

/* Icon rotation on theme change */
[data-theme="light"] .theme-toggle .theme-icon {
  transform: rotate(180deg);
}

/* Theme-specific particle colors */
[data-theme="dark"] .particle {
  background: var(--color-accent);
}

[data-theme="light"] .particle {
  background: var(--color-accent);
  opacity: 0.4;
}

/* Theme-specific gradient adjustments */
[data-theme="light"] .gradient-text {
  background: linear-gradient(135deg, #4f46e5 0%, #059669 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .hero-badge {
  background: rgba(79, 70, 229, 0.08);
  border-color: rgba(79, 70, 229, 0.2);
  color: var(--color-accent);
}

/* Light theme service cards */
[data-theme="light"] .service-card {
  background: var(--color-bg-primary);
  border-color: var(--color-border);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .service-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Light theme stat cards */
[data-theme="light"] .stat-card {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .stat-card:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Light theme carousel adjustments */
[data-theme="light"] .carousel-section {
  background: var(--color-bg-primary);
}

[data-theme="light"] .logo-item {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .logo-item:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Light theme button adjustments */
[data-theme="light"] .btn-secondary {
  background: transparent;
  border-color: var(--color-border-light);
  color: var(--color-text-primary);
}

[data-theme="light"] .btn-secondary:hover {
  background: var(--color-bg-secondary);
}

/* Light theme modal adjustments */
[data-theme="light"] .modal {
  background: var(--color-bg-primary);
  border-color: var(--color-border);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .modal-overlay {
  background: rgba(0, 0, 0, 0.4);
}

/* Light theme form elements */
[data-theme="light"] .form-group input,
[data-theme="light"] .form-group select {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group select:focus {
  border-color: var(--color-accent);
}

[data-theme="light"] .form-group input::placeholder {
  color: var(--color-text-muted);
}

/* Light theme hero section */
[data-theme="light"] .hero-section {
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

/* Light theme navigation */
[data-theme="light"] .navbar {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--color-border);
}

[data-theme="light"] .nav-link {
  color: var(--color-text-secondary);
}

[data-theme="light"] .nav-link:hover,
[data-theme="light"] .nav-link.active {
  color: var(--color-text-primary);
}

[data-theme="light"] .theme-toggle {
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

[data-theme="light"] .theme-toggle:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border-light);
}

/* Prism.js theme integration */
[data-theme="dark"] #prism-light {
  display: none;
}

[data-theme="light"] #prism-dark {
  display: none;
}

[data-theme="light"] #prism-light {
  display: block;
}

/* Light theme feature tags */
[data-theme="light"] .feature-tag {
  background: rgba(79, 70, 229, 0.08);
  color: var(--color-accent);
}

/* Auto theme detection */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #e9ecef;
    --color-text-primary: #1a1a1b;
    --color-text-secondary: #6b6b6b;
    --color-text-muted: #9ca3af;
    --color-border: #e5e7eb;
    --color-border-light: #d1d5db;
  }
}

/* Theme toggle animation */
@keyframes themeToggle {
  0% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(180deg) scale(1.2);
  }
  100% {
    transform: rotate(360deg);
  }
}

.theme-toggle.toggling .theme-icon {
  animation: themeToggle 0.5s ease-in-out;
}

/* Improved contrast for light theme */
[data-theme="light"] .scroll-bar.active {
  background-color: var(--color-accent);
}

[data-theme="light"] .scroll-bar {
  background-color: var(--color-border-light);
}

/* Theme-specific shadow adjustments */
[data-theme="light"] .hover-lift:hover,
[data-theme="light"] .service-card:hover,
[data-theme="light"] .stat-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .hover-lift:hover,
[data-theme="dark"] .service-card:hover,
[data-theme="dark"] .stat-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

/* Theme-specific gradient borders */
[data-theme="light"] .gradient-border::before {
  background: linear-gradient(45deg, var(--color-accent), var(--color-success), var(--color-accent));
}

/* Mouse trail theme adjustments */
[data-theme="light"] .mouse-trail {
  background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
  mix-blend-mode: multiply;
}

/* High contrast support */
@media (prefers-contrast: high) {
  [data-theme="dark"] {
    --color-bg-primary: #000000;
    --color-bg-secondary: #111111;
    --color-text-primary: #ffffff;
    --color-border: #444444;
  }

  [data-theme="light"] {
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f0f0f0;
    --color-text-primary: #000000;
    --color-border: #cccccc;
  }
}

/* System theme preference detection and smooth transition */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
  }
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    color-scheme: light;
  }
}

/* Ensure smooth theme transitions */
* {
  transition-property: background-color, border-color, color, fill, stroke;
  transition-timing-function: ease;
  transition-duration: var(--transition-medium);
}

/* Theme persistence indicator */
.theme-saved {
  position: fixed;
  top: 100px;
  right: 20px;
  background: var(--color-success);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  transform: translateX(100%);
  transition: transform var(--transition-medium);
  z-index: 1001;
}

.theme-saved.show {
  transform: translateX(0);
}