/* PFC Logistics 2025 Design System */

:root {
  /* Brand Colors */
  --pfc-orange: #FF6B35;
  --pfc-orange-light: #FF8D66;
  --pfc-orange-dark: #E65420;
  --pfc-blue: #1E40AF;
  --pfc-blue-light: #3B82F6;
  --pfc-blue-dark: #1E3A8A;
  --pfc-purple: #7C3AED;
  
  /* Neutrals */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  
  /* Status Colors */
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #06B6D4;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* Global Resets */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--gray-50);
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--pfc-orange);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--pfc-orange-dark);
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--pfc-orange);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Animated Network Background */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.network-dot {
  animation: float 3s ease-in-out infinite;
}

.network-line {
  animation: pulse-glow 2s ease-in-out infinite;
}

/* Mobile Bottom Nav */
.mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  display: none;
}

@media (max-width: 768px) {
  .mobile-nav {
    display: flex;
  }
  
  body {
    padding-bottom: 70px;
  }
}

/* Sticky Elements */
.sticky-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  min-height: 44px; /* Touch-friendly */
}

.btn-primary {
  background: linear-gradient(135deg, var(--pfc-orange), var(--pfc-orange-light));
  color: white;
}

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

.btn-secondary {
  background: white;
  color: var(--pfc-orange);
  border: 2px solid var(--pfc-orange);
}

.btn-secondary:hover {
  background: var(--pfc-orange);
  color: white;
}

/* Card Styles */
.card {
  background: white;
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

/* Glass-morphism Effect */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Stats Counter Animation */
@keyframes countUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.stat-number {
  animation: countUp 0.8s ease-out;
}

/* Responsive Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Styles */
*:focus {
  outline: 2px solid var(--pfc-orange);
  outline-offset: 2px;
}

/* Shipping Method Tabs */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
  display: block;
}

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

/* Blog Post Content - Mobile Responsive */
.prose {
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-word;
}

.prose img {
  max-width: 100%;
  height: auto;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.prose table {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.prose pre {
  overflow-x: auto;
  max-width: 100%;
}

.prose iframe,
.prose video {
  max-width: 100%;
  height: auto;
}

/* Force all blog content to stay within bounds on mobile */
@media (max-width: 768px) {
  .prose * {
    max-width: 100% !important;
  }
  
  .prose table {
    font-size: 0.875rem;
  }
  
  .prose pre {
    font-size: 0.75rem;
  }
}

/* Print Styles */
@media print {
  .no-print {
    display: none !important;
  }
}