:root {
  --bg-light: #f5f6fa;
  --bg-dark: #18191a;
  --text-light: #18191a;
  --text-dark: #f5f6fa;
}
body[data-theme="light"] {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%) !important;
  color: #1a202c;
}

body[data-theme="light"] .navbar {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

body[data-theme="light"] .navbar-brand,
body[data-theme="light"] .navbar-nav .nav-link {
  color: #1a202c !important;
}

body[data-theme="light"] .navbar-brand:hover,
body[data-theme="light"] .navbar-nav .nav-link:hover {
  color: #4a5568 !important;
}

body[data-theme="light"] .card {
  background: rgba(255, 255, 255, 0.95) !important;
  border: 1px solid rgba(0, 0, 0, 0.1) !important;
  color: #1a202c !important;
}

body[data-theme="light"] .btn-outline-primary {
  background: rgba(255, 255, 255, 0.9) !important;
  border-color: #4a5568 !important;
  color: #4a5568 !important;
}

body[data-theme="light"] .btn-outline-primary:hover {
  background: #4a5568 !important;
  color: #fff !important;
}

body[data-theme="light"] .form-control {
  background: rgba(255, 255, 255, 0.9) !important;
  border-color: rgba(0, 0, 0, 0.2) !important;
  color: #1a202c !important;
}

body[data-theme="light"] .form-control:focus {
  background: rgba(255, 255, 255, 1) !important;
  border-color: #4a5568 !important;
  color: #1a202c !important;
}

body[data-theme="dark"] {
  background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%) !important;
  color: #e2e8f0;
}

body[data-theme="dark"] .stars {
  display: block !important;
}

body[data-theme="light"] .stars {
  display: none !important;
}

/* Estilos adicionales para elementos específicos */
body[data-theme="light"] .product-card {
  background: rgba(255, 255, 255, 0.95) !important;
  border-color: rgba(0, 0, 0, 0.1) !important;
}

body[data-theme="light"] .product-title {
  background: linear-gradient(135deg, #1a202c 0%, #4a5568 50%, #1a202c 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
}

body[data-theme="light"] .product-price {
  background: linear-gradient(135deg, #4a5568 0%, #2d3748 50%, #4a5568 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
}

body[data-theme="light"] .badge {
  background: rgba(74, 85, 104, 0.1) !important;
  color: #4a5568 !important;
  border: 1px solid rgba(74, 85, 104, 0.2) !important;
}

body[data-theme="light"] .table {
  background: rgba(255, 255, 255, 0.95) !important;
  color: #1a202c !important;
}

body[data-theme="light"] .table thead {
  background: rgba(248, 250, 252, 0.9) !important;
  color: #1a202c !important;
}

body[data-theme="light"] .alert {
  background: rgba(255, 255, 255, 0.95) !important;
  color: #1a202c !important;
  border-color: rgba(0, 0, 0, 0.1) !important;
}

/* Transiciones suaves para cambios de tema */
* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.theme-toggle-advanced {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 10001;
  /* Botón circular con fondo sutil y sombra */
  background: rgba(24, 24, 24, 0.8);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  cursor: pointer;
  padding: 0.6em 0.7em;
  font-size: 1.5em;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1 !important;
  visibility: visible !important;
  width: 56px;
  height: 56px;
}
.theme-toggle-advanced:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(255, 255, 255, 0.1);
}

.theme-toggle-advanced:active {
  transform: scale(0.95) translateY(0);
  transition: transform 0.1s ease;
}

.theme-toggle-advanced .icon {
  transition: all 0.3s cubic-bezier(.4, 2, .3, 1);
  font-size: 1.5em;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.theme-toggle-advanced .icon.theme-animating {
  transform: rotate(360deg) scale(1.3);
}

.theme-toggle-advanced[data-theme="light"] {
  background: rgba(255, 255, 255, 0.9) !important;
  border-color: rgba(74, 85, 104, 0.3) !important;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(74, 85, 104, 0.1) !important;
}

.theme-toggle-advanced[data-theme="light"] .icon {
  color: #f59e0b; /* Naranja para sol */
  text-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}

.theme-toggle-advanced[data-theme="dark"] {
  background: rgba(24, 24, 24, 0.8) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05) !important;
}

.theme-toggle-advanced[data-theme="dark"] .icon {
  color: #4ecdc4; /* Verde turquesa para luna */
  text-shadow: 0 0 8px rgba(78, 205, 196, 0.5);
  transform: rotate(180deg);
}

/* Responsive design */
@media (max-width: 768px) {
  .theme-toggle-advanced {
    bottom: 16px;
    left: 16px;
    width: 48px;
    height: 48px;
    padding: 0.5em 0.6em;
    font-size: 1.3em;
  }

  .theme-toggle-advanced .icon {
    font-size: 1.3em;
  }
}

@media (max-width: 480px) {
  .theme-toggle-advanced {
    bottom: 12px;
    left: 12px;
    width: 44px;
    height: 44px;
    padding: 0.4em 0.5em;
    font-size: 1.2em;
  }

  .theme-toggle-advanced .icon {
    font-size: 1.2em;
  }
}

/* Animación de entrada */
@keyframes themeButtonFadeIn {
  from {
    opacity: 0;
    transform: scale(0.8) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.theme-toggle-advanced {
  animation: themeButtonFadeIn 0.6s ease-out 0.5s both;
}

/* Indicador de pulso para llamar la atención */
.theme-toggle-advanced::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 50%;
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.3);
  animation: themePulse 3s ease-in-out infinite;
  opacity: 0;
}

.theme-toggle-advanced:hover::after {
  opacity: 1;
}

@keyframes themePulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.6;
  }
}

/* Mejor accesibilidad */
.theme-toggle-advanced:focus {
  outline: 2px solid rgba(99, 102, 241, 0.5);
  outline-offset: 4px;
}

/* Efecto de ripple al hacer click */
.theme-toggle-advanced:active::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  animation: themeRipple 0.6s ease-out;
}

@keyframes themeRipple {
  to {
    width: 120px;
    height: 120px;
    opacity: 0;
  }
}