/* Sistema de Diseño - Variables CSS */
:root {
  /* Colores primarios con gradientes */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  
  /* Colores de estado */
  --success-400: #4ade80;
  --success-500: #22c55e;
  --warning-400: #facc15;
  --warning-500: #eab308;
  --danger-400: #f87171;
  --danger-500: #ef4444;
  --info-400: #60a5fa;
  --info-500: #3b82f6;
  
  /* Colores de estado de limpieza */
  --status-pendiente: linear-gradient(135deg, #fecaca 0%, #fca5a5 100%);
  --status-hecho: linear-gradient(135deg, #bbf7d0 0%, #86efac 100%);
  
  /* Sombras modernas */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.18);
  
  /* Transiciones */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Animaciones globales */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: .5;
  }
}

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

@keyframes gradient-shift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Utilidades de animación */
.animate-fade-in {
  animation: fadeIn var(--transition-base) ease-out;
}

.animate-slide-down {
  animation: slideDown var(--transition-base) ease-out;
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Glassmorphism effect */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
}

.glass-dark {
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Gradientes de fondo animados */
.gradient-bg {
  background: linear-gradient(-45deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 100%);
  background-size: 400% 400%;
  animation: gradient-shift 15s ease infinite;
}

.gradient-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-success {
  background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.gradient-warning {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.gradient-danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

/* Botones modernos con efectos */
.btn-modern {
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.btn-modern:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-modern:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-modern::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%);
  transition: width var(--transition-fast), height var(--transition-fast);
}

.btn-modern:active::before {
  width: 300px;
  height: 300px;
}

/* Cards con hover effect */
.card-modern {
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.card-modern:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* Inputs modernos */
.input-modern {
  transition: all var(--transition-base);
  border: 2px solid #e5e7eb;
}

.input-modern:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Toggle switch moderno */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #cbd5e1;
  transition: var(--transition-base);
  border-radius: 24px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: var(--transition-base);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--primary-500);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(24px);
}

/* Badge moderno */
.badge-modern {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-base);
}

.badge-modern:hover {
  transform: scale(1.05);
}

/* Estados de badge */
.badge-pendiente {
  background: linear-gradient(135deg, #fecaca 0%, #fca5a5 100%);
  color: #991b1b;
}

.badge-hecho {
  background: linear-gradient(135deg, #bbf7d0 0%, #86efac 100%);
  color: #166534;
}

/* Toast notification */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-2xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 400px;
  animation: slideUp 0.3s ease-out;
  z-index: 9999;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.toast-success {
  background: var(--success-500);
  color: white;
}

.toast-error {
  background: var(--danger-500);
  color: white;
}

.toast-info {
  background: var(--info-500);
  color: white;
}

/* Loading spinner */
.spinner {
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Image overlay effect */
.image-overlay {
  position: relative;
  overflow: hidden;
}

.image-overlay::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.6) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.image-overlay:hover::after {
  opacity: 1;
}

/* Skeleton loader */
.skeleton {
  background: linear-gradient(90deg, #f3f4f6 25%, #e5e7eb 50%, #f3f4f6 75%);
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Responsive utilities */
@media (max-width: 640px) {
  .toast {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
    max-width: none;
  }
}

/* Focus visible para accesibilidad */
*:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}

/* Rating stars */
.rating-stars {
  display: inline-flex;
  gap: 0.25rem;
}

.rating-star {
  color: #fbbf24;
  transition: transform var(--transition-fast);
}

.rating-star:hover {
  transform: scale(1.2);
}

/* Prevenir selección de texto en imágenes del modal */
.touch-none {
  touch-action: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}