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

/* Base Styles */
:root {
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-glass-white: rgba(255, 255, 255, 0.1);
  --color-glass-dark: rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 0.3s ease;
  
  /* Mobile optimization */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  overscroll-behavior-y: none;
}

/* Light mode */
html:not(.dark) body {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
}

/* Dark mode */
html.dark body {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  transition: background 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.5);
}

/* Glassmorphism Utilities */
@layer utilities {
  .glass {
    @apply bg-white/10 backdrop-blur-md border border-white/20 shadow-glass;
  }
  
  .glass-dark {
    @apply bg-black/10 backdrop-blur-md border border-black/10 shadow-glass;
  }
  
  .glass-card {
    @apply bg-white/90 backdrop-blur-lg border border-white/50 shadow-soft rounded-2xl;
  }
  
  .glass-nav {
    @apply bg-white/80 backdrop-blur-xl border-b border-white/30 shadow-soft;
  }
  
  .btn-primary {
    @apply px-6 py-2.5 bg-primary-600 text-white rounded-xl font-medium
           hover:bg-primary-700 active:scale-[0.98] transition-all duration-200
           shadow-soft hover:shadow-soft-lg;
  }
  
  .btn-secondary {
    @apply px-6 py-2.5 bg-white/20 backdrop-blur-sm text-white rounded-xl font-medium
           border border-white/30 hover:bg-white/30 active:scale-[0.98]
           transition-all duration-200;
  }
  
  .btn-ghost {
    @apply px-4 py-2 text-gray-600 hover:bg-gray-100 rounded-xl font-medium
           transition-all duration-200;
  }
  
  .input-glass {
    @apply w-full px-4 py-3 bg-white/80 backdrop-blur-sm border border-gray-200
           rounded-xl focus:outline-none focus:ring-2 focus:ring-primary-500/50
           focus:border-primary-500 transition-all duration-200 placeholder:text-gray-400;
  }
  
  .card-hover {
    @apply transition-all duration-300 hover:shadow-soft-lg hover:-translate-y-1;
  }
}

/* Page Transitions */
.page-enter {
  opacity: 0;
  transform: translateY(10px);
}

.page-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.page-exit {
  opacity: 1;
  transform: translateY(0);
}

.page-exit-active {
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.2s ease-in, transform 0.2s ease-in;
}

/* Selection */
::selection {
  background-color: rgba(59, 130, 246, 0.3);
  color: inherit;
}

/* Focus Visible */
:focus-visible {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Prevent text selection on drag */
.no-select {
  user-select: none;
  -webkit-user-select: none;
}

/* Mobile Touch Optimization */
@media (max-width: 768px) {
  /* Larger touch targets */
  button:not(.no-touch-target), 
  a:not(.no-touch-target), 
  input[type="checkbox"], 
  input[type="radio"] {
    min-height: 44px;
  }
  
  /* Better spacing for mobile */
  body {
    font-size: 16px; /* Prevents iOS zoom on focus */
  }
  
  input, textarea, select {
    font-size: 16px; /* Prevents iOS zoom */
  }
  
  /* Smooth scrolling on mobile */
  * {
    -webkit-overflow-scrolling: touch;
  }
}

/* iPhone X and later (notch support) */
@supports (padding: max(0px)) {
  body {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
}

/* Tablet and Desktop refinements */
@media (min-width: 768px) and (max-width: 1024px) {
  /* iPad specific adjustments */
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}