/* Modo Oscuro - PetLoc */

/* Variables para modo oscuro */
[data-theme="dark"] {
  /* Colores principales ajustados para modo oscuro */
  --primary-900: #1E40AF;
  --primary-700: #3B82F6;
  --primary-500: #60A5FA;
  --primary-300: #93C5FD;
  --primary-100: #DBEAFE;
  
  /* Colores neutros para modo oscuro */
  --gray-900: #F9FAFB;
  --gray-700: #E5E7EB;
  --gray-600: #D1D5DB;
  --gray-500: #9CA3AF;
  --gray-300: #4B5563;
  --gray-100: #1F2937;
  --white: #111827;
  
  /* Colores de fondo específicos */
  --bg-primary: #111827;
  --bg-secondary: #1F2937;
  --bg-tertiary: #374151;
  
  /* Colores de texto */
  --text-primary: #F9FAFB;
  --text-secondary: #E5E7EB;
  --text-muted: #9CA3AF;
  
  /* Sombras para modo oscuro */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

/* Transiciones suaves para el cambio de tema */
* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Estilos base para modo oscuro */
[data-theme="dark"] body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

/* Navegación en modo oscuro */
[data-theme="dark"] .navbar {
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(10px);
}

[data-theme="dark"] .navbar.scrolled {
  background: rgba(17, 24, 39, 0.98);
}

[data-theme="dark"] .logo {
  color: var(--primary-300);
}

[data-theme="dark"] .logo-icon {
  filter: brightness(1.1);
}

[data-theme="dark"] .nav-links a {
  color: var(--text-secondary);
}

[data-theme="dark"] .nav-links a:hover,
[data-theme="dark"] .nav-links a.active {
  color: var(--primary-300);
}

[data-theme="dark"] .dark-mode-toggle {
  border-color: var(--primary-300);
  color: var(--primary-300);
}

[data-theme="dark"] .dark-mode-toggle:hover {
  background: var(--primary-300);
  color: var(--bg-primary);
}

[data-theme="dark"] .hamburger span {
  background: var(--text-secondary);
}

/* Hero section en modo oscuro */
[data-theme="dark"] .hero {
  background: linear-gradient(135deg, #0F172A 0%, var(--primary-900) 100%);
}

/* Secciones en modo oscuro */
[data-theme="dark"] .section-title {
  color: var(--text-primary);
}

[data-theme="dark"] .section-subtitle {
  color: var(--text-muted);
}

/* About section */
[data-theme="dark"] .about-text h3 {
  color: var(--primary-300);
}

[data-theme="dark"] .about-text p {
  color: var(--text-secondary);
}

[data-theme="dark"] .highlight {
  background: linear-gradient(120deg, var(--bg-tertiary) 0%, var(--bg-tertiary) 100%);
  border-left-color: var(--primary-300);
}

/* Tarjetas de funcionalidades */
[data-theme="dark"] .feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--gray-300);
}

[data-theme="dark"] .feature-card:hover {
  background: var(--bg-tertiary);
  border-color: var(--primary-300);
}

[data-theme="dark"] .feature-card h3 {
  color: var(--text-primary);
}

[data-theme="dark"] .feature-card p {
  color: var(--text-muted);
}

/* Carrusel en modo oscuro */
[data-theme="dark"] .carousel-btn {
  background: var(--primary-300);
  color: var(--bg-primary);
}

[data-theme="dark"] .carousel-btn:hover {
  background: var(--primary-500);
}

[data-theme="dark"] .indicator {
  background: var(--gray-300);
}

[data-theme="dark"] .indicator.active {
  background: var(--primary-300);
}

/* FAQ en modo oscuro */
[data-theme="dark"] .faq-item {
  border-color: var(--gray-300);
  background: var(--bg-secondary);
}

[data-theme="dark"] .faq-question {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

[data-theme="dark"] .faq-question:hover {
  background: var(--gray-300);
}

[data-theme="dark"] .faq-answer {
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

/* Footer en modo oscuro */
[data-theme="dark"] .footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--gray-300);
}

[data-theme="dark"] .footer-section h3 {
  color: var(--primary-300);
}

[data-theme="dark"] .footer-section ul li a {
  color: var(--text-muted);
}

[data-theme="dark"] .footer-section ul li a:hover {
  color: var(--primary-300);
}

[data-theme="dark"] .social-links a {
  background: var(--primary-300);
  color: var(--bg-primary);
}

[data-theme="dark"] .social-links a:hover {
  background: var(--primary-500);
}

[data-theme="dark"] .footer-bottom {
  border-top-color: var(--gray-300);
  color: var(--text-muted);
}

/* Botones en modo oscuro */
[data-theme="dark"] .btn-primary {
  background: var(--primary-300);
  color: var(--bg-primary);
}

[data-theme="dark"] .btn-primary:hover {
  background: var(--primary-500);
}

[data-theme="dark"] .btn-secondary {
  border-color: var(--primary-300);
  color: var(--primary-300);
}

[data-theme="dark"] .btn-secondary:hover {
  background: var(--primary-300);
  color: var(--bg-primary);
}

/* Navegación móvil en modo oscuro */
@media (max-width: 768px) {
  [data-theme="dark"] .nav-links {
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
  }
}

/* Scrollbar personalizado para modo oscuro */
[data-theme="dark"] ::-webkit-scrollbar {
  width: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 4px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: var(--primary-300);
}

/* Selección de texto en modo oscuro */
[data-theme="dark"] ::selection {
  background: var(--primary-300);
  color: var(--bg-primary);
}

/* Asegurar que todos los textos sean visibles en modo oscuro */
[data-theme="dark"] .section-subtitle {
  color: var(--text-muted);
}

[data-theme="dark"] .color-circle {
  color: var(--white);
}

[data-theme="dark"] .community-text {
  color: var(--text-secondary);
}

[data-theme="dark"] .design-text {
  color: var(--text-secondary);
}

/* Asegurar contraste en todos los párrafos */
[data-theme="dark"] p {
  color: var(--text-secondary);
}

[data-theme="dark"] h1, 
[data-theme="dark"] h2, 
[data-theme="dark"] h3, 
[data-theme="dark"] h4, 
[data-theme="dark"] h5, 
[data-theme="dark"] h6 {
  color: var(--text-primary);
}

[data-theme="dark"] ::-moz-selection {
  background: var(--primary-300);
  color: var(--bg-primary);
}

/* Focus states en modo oscuro */
[data-theme="dark"] button:focus,
[data-theme="dark"] a:focus {
  outline: 2px solid var(--primary-300);
  outline-offset: 2px;
}

/* Inputs y forms en modo oscuro (si se agregan en el futuro) */
[data-theme="dark"] input,
[data-theme="dark"] textarea,
[data-theme="dark"] select {
  background: var(--bg-secondary);
  border: 1px solid var(--gray-300);
  color: var(--text-primary);
}

[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] select:focus {
  border-color: var(--primary-300);
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

/* Placeholder text */
[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
  color: var(--text-muted);
}

/* Mejoras de accesibilidad para modo oscuro */
[data-theme="dark"] .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Animación del toggle de modo oscuro */
.dark-mode-toggle {
  position: relative;
  overflow: hidden;
}

.dark-mode-toggle::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.dark-mode-toggle:hover::before {
  left: 100%;
}

/* Respeto a las preferencias del sistema */
@media (prefers-color-scheme: dark) {
  :root {
    --preferred-theme: 'dark';
  }
}

/* Transiciones específicas para elementos que cambian mucho */
[data-theme="dark"] .feature-card,
[data-theme="dark"] .faq-item,
[data-theme="dark"] .navbar {
  transition: all 0.3s ease;
}

/* Estados de hover mejorados para modo oscuro */
[data-theme="dark"] .feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] .color-circle:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.6);
}

/* Sección Funcionamiento - Modo Oscuro */
[data-theme="dark"] .step-item {
  border-color: transparent;
}

[data-theme="dark"] .step-item:hover {
  background: var(--bg-secondary);
}

[data-theme="dark"] .step-item.active {
  background: rgba(59, 130, 246, 0.2);
  border-color: var(--primary-500);
}

[data-theme="dark"] .step-number {
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

[data-theme="dark"] .step-item.active .step-number {
  background: var(--primary-500);
  color: var(--white);
}

[data-theme="dark"] .step-content h3 {
  color: var(--text-primary);
}

[data-theme="dark"] .step-content p {
  color: var(--text-secondary);
}

[data-theme="dark"] .phone-mockup {
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-primary));
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .phone-mockup::before {
  background: var(--gray-600);
}