/* Weight Loss Machine Pro - Global Styles */

/* Reset and Base Styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Ensure smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Loading animation for better UX */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

/* Responsive design helpers */
@media (max-width: 768px) {
  /* Mobile-specific adjustments */
  .mobile-stack {
    flex-direction: column !important;
  }
  
  .mobile-full-width {
    width: 100% !important;
  }
  
  .mobile-center {
    text-align: center !important;
  }
}

/* Button hover effects */
button {
  transition: all 0.2s ease-in-out;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

button:active:not(:disabled) {
  transform: translateY(0);
}

/* Input focus styles */
textarea:focus, input:focus {
  outline: none;
  border-color: #ff6b35 !important;
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

/* Custom scrollbar for webkit browsers */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

/* Print styles (in case someone wants to print the analysis) */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  
  .no-print {
    display: none !important;
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  button {
    border: 2px solid;
  }
}

/* Focus indicators for keyboard navigation */
button:focus-visible,
textarea:focus-visible,
input:focus-visible {
  outline: 2px solid #ff6b35;
  outline-offset: 2px;
}

/* Loading spinner animation */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.spinner {
  animation: spin 1s linear infinite;
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

.align-center { align-items: center; }
.justify-center { justify-content: center; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }