@tailwind base;
@tailwind components;
@tailwind utilities;

/* Theme CSS Variables */
:root {
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;
  --color-text-primary: #111827;
  --color-text-secondary: #6b7280;
  --color-text-tertiary: #9ca3af;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --color-card: #ffffff;
  --color-card-hover: #f9fafb;
}

.dark {
  --color-bg-primary: #111827;
  --color-bg-secondary: #1f2937;
  --color-bg-tertiary: #374151;
  --color-text-primary: #f9fafb;
  --color-text-secondary: #d1d5db;
  --color-text-tertiary: #9ca3af;
  --color-border: #374151;
  --color-border-light: #4b5563;
  --color-card: #1f2937;
  --color-card-hover: #374151;
}

/* Theme-aware utility classes */
.bg-theme-primary { background-color: var(--color-bg-primary); }
.bg-theme-secondary { background-color: var(--color-bg-secondary); }
.bg-theme-tertiary { background-color: var(--color-bg-tertiary); }
.bg-theme-card { background-color: var(--color-card); }
.bg-theme-card-hover { background-color: var(--color-card-hover); }

.text-theme-primary { color: var(--color-text-primary); }
.text-theme-secondary { color: var(--color-text-secondary); }
.text-theme-tertiary { color: var(--color-text-tertiary); }

.border-theme { border-color: var(--color-border); }
.border-theme-light { border-color: var(--color-border-light); }

/* Apply theme to existing elements */
body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* Clean Task Management Styles */
.task-item {
  background-color: var(--color-card);
  transition: all 0.2s ease;
}

.task-item:hover {
  background-color: var(--color-card-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Simple checkbox styling */
.task-item button {
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  margin: 0;
  cursor: pointer;
}

.task-item button:hover span {
  transform: scale(1.1);
  transition: transform 0.15s ease;
}

.task-item button span {
  transition: all 0.15s ease;
}

/* Card styling */
.theme-card {
  background-color: var(--color-card);
  border-color: var(--color-border-light);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.theme-card:hover {
  background-color: var(--color-card-hover);
}

/* Form elements */
input, textarea, select {
  background-color: var(--color-card);
  border-color: var(--color-border);
  color: var(--color-text-primary);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

input:focus, textarea:focus, select:focus {
  background-color: var(--color-card);
  border-color: #4f46e5;
  color: var(--color-text-primary);
}

input::placeholder, textarea::placeholder {
  color: var(--color-text-tertiary);
}

/* Smooth checkbox animations */
.task-item button {
  transition: transform 0.15s ease;
}

.task-item button:hover {
  transform: scale(1.1);
}

.task-item button:active {
  transform: scale(0.95);
}

/* Progress bar animations */
@keyframes progress-fill {
  from {
    width: 0;
  }
}

.progress-bar {
  animation: progress-fill 0.5s ease-out;
}

/* Theme toggle button */
.theme-toggle {
  padding: 0.5rem;
  border-radius: 0.375rem;
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all 0.2s ease;
}

.theme-toggle:hover {
  background-color: var(--color-card-hover);
  color: var(--color-text-primary);
}

/* iOS-specific optimizations */
@supports (-webkit-touch-callout: none) {
  /* Prevent text size adjustment on iOS */
  html {
    -webkit-text-size-adjust: 100%;
  }
  
  /* Smooth scrolling */
  .task-list {
    -webkit-overflow-scrolling: touch;
  }
  
  /* Remove tap highlight */
  button, a {
    -webkit-tap-highlight-color: transparent;
  }
  
  /* Ensure inputs are large enough to prevent zoom */
  input, textarea, select {
    font-size: 16px !important;
  }
  
  /* Safe area spacing for modern iOS devices */
  .dashboard {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

/* Focus styles for accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid #4F46E5;
  outline-offset: 2px;
}

/* Custom scrollbar for desktop */
@media (min-width: 768px) {
  ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
  }
  
  ::-webkit-scrollbar-track {
    background: var(--color-bg-tertiary);
  }
  
  ::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
  }
  
  ::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-tertiary);
  }
}

/* Confetti celebration animation */
.confetti {
  position: absolute;
  width: 10px;
  height: 10px;
  top: -10px;
  animation: confetti-fall 3s ease-out forwards;
  opacity: 0.8;
}

@keyframes confetti-fall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}