/* Custom Tailwind CSS Build - Optimized for Digital Dichotomy */

/* Base styles */
@import 'tailwindcss/base';
@import 'tailwindcss/components';
@import 'tailwindcss/utilities';

/* Custom theme configuration */
:root {
  --primary-500: #dc2626;
  --primary-600: #b91c1c;
  --secondary-500: #f59e0b;
  --secondary-600: #d97706;
}

/* Dark mode utilities */
.dark {
  color-scheme: dark;
}

/* Patent Database Table Styles */
.patent-table {
  @apply w-full bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg overflow-hidden shadow-sm;
}

.patent-table th {
  @apply bg-gray-50 dark:bg-gray-700 px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase tracking-wider;
}

.patent-table td {
  @apply px-4 py-3 text-sm text-gray-900 dark:text-gray-100 border-t border-gray-100 dark:border-gray-700;
}

.patent-table tr:hover {
  @apply bg-gray-50 dark:bg-gray-750;
}

.patent-section {
  @apply mb-12 scroll-mt-20;
}

.patent-section h2 {
  @apply text-2xl font-bold text-gray-900 dark:text-white mb-6 pb-2 border-b-2 border-red-500;
}

.patent-section h3 {
  @apply text-lg font-semibold text-gray-800 dark:text-gray-200 mb-4 mt-8;
}

/* Relevance indicator styles */
.relevance-high {
  @apply bg-red-100 dark:bg-red-900/30 text-red-800 dark:text-red-300 px-2 py-1 rounded text-xs font-semibold;
}

.relevance-medium {
  @apply bg-yellow-100 dark:bg-yellow-900/30 text-yellow-800 dark:text-yellow-300 px-2 py-1 rounded text-xs font-semibold;
}

.relevance-low {
  @apply bg-green-100 dark:bg-green-900/30 text-green-800 dark:text-green-300 px-2 py-1 rounded text-xs font-semibold;
}

/* Patent category badges */
.category-tier1 { @apply bg-red-100 dark:bg-red-900/30 text-red-800 dark:text-red-300; }
.category-tier2 { @apply bg-orange-100 dark:bg-orange-900/30 text-orange-800 dark:text-orange-300; }
.category-tier3 { @apply bg-amber-100 dark:bg-amber-900/30 text-amber-800 dark:text-amber-300; }
.category-tier4 { @apply bg-yellow-100 dark:bg-yellow-900/30 text-yellow-800 dark:text-yellow-300; }
.category-tier5 { @apply bg-lime-100 dark:bg-lime-900/30 text-lime-800 dark:text-lime-300; }
.category-tier6 { @apply bg-green-100 dark:bg-green-900/30 text-green-800 dark:text-green-300; }
.category-tier7 { @apply bg-teal-100 dark:bg-teal-900/30 text-teal-800 dark:text-teal-300; }
.category-tier8 { @apply bg-cyan-100 dark:bg-cyan-900/30 text-cyan-800 dark:text-cyan-300; }
.category-tier11 { @apply bg-purple-100 dark:bg-purple-900/30 text-purple-800 dark:text-purple-300; }
.category-tier12 { @apply bg-indigo-100 dark:bg-indigo-900/30 text-indigo-800 dark:text-indigo-300; }
.category-defense { @apply bg-emerald-100 dark:bg-emerald-900/30 text-emerald-800 dark:text-emerald-300; }

/* Custom component styles */
@layer components {
  .btn-primary {
    @apply bg-red-600 hover:bg-red-700 text-white font-medium py-2 px-4 rounded-lg transition-colors;
  }
  
  .btn-secondary {
    @apply bg-amber-500 hover:bg-amber-600 text-white font-medium py-2 px-4 rounded-lg transition-colors;
  }
  
  .card {
    @apply bg-white dark:bg-gray-800 rounded-lg shadow-lg border border-gray-200 dark:border-gray-700;
  }
  
  .nav-link {
    @apply text-gray-300 hover:text-white px-3 py-2 rounded-md text-sm font-medium transition-colors;
  }
  
  .search-input {
    @apply w-full px-4 py-2 bg-gray-700 text-white placeholder-gray-400 rounded-lg focus:outline-none focus:ring-2 focus:ring-red-500;
  }
}

/* Mobile Menu Styles */
.mobile-menu-overlay {
  @apply fixed inset-0 bg-black bg-opacity-50 z-40 hidden;
  backdrop-filter: blur(4px);
}

.mobile-menu {
  @apply fixed left-0 top-0 h-full w-80 bg-gray-900 border-r border-gray-700 transform -translate-x-full transition-transform duration-300;
}

.mobile-menu-header {
  @apply flex justify-between items-center p-6 border-b border-gray-700;
}

.mobile-menu-close {
  @apply text-gray-400 hover:text-white transition-colors;
}

.mobile-menu-content {
  @apply p-6 space-y-4;
}

.mobile-menu-search {
  @apply mb-6;
}

.mobile-menu-search input {
  @apply w-full px-3 py-2 bg-gray-800 text-white placeholder-gray-400 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-red-500;
}

.mobile-menu-link {
  @apply flex items-center space-x-3 text-gray-300 hover:text-white py-3 px-4 rounded-lg transition-colors;
  min-height: 44px;
}

.mobile-menu-link.active {
  @apply bg-red-900/50 text-red-300;
}

.mobile-menu-link i {
  @apply w-5 h-5 flex-shrink-0;
}

.mobile-menu-section {
  @apply border-t border-gray-700 pt-6 mt-6;
}

.mobile-menu-section-title {
  @apply text-gray-400 text-sm font-semibold uppercase tracking-wider mb-3;
}

/* Body scroll lock for mobile menu */
body.mobile-menu-open {
  @apply overflow-hidden;
}

/* Utility optimizations */
@layer utilities {
  .text-shadow {
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }
  
  .text-shadow-lg {
    text-shadow: 0 4px 8px rgba(0,0,0,0.2);
  }
}

/* Performance optimizations */
img {
  content-visibility: auto;
  contain-intrinsic-size: 800px 600px;
}

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

/* Focus styles for accessibility */
*:focus {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* Mobile Navigation Styles */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease-in-out;
  display: block;
  pointer-events: none;
}

.mobile-menu-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100%;
  background: #111827;
  border-left: 1px solid #374151;
  transition: right 0.3s ease-in-out;
  z-index: 1000;
  overflow-y: auto;
  padding-top: 4rem;
  pointer-events: auto;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4rem;
  background: #1f2937;
  border-bottom: 1px solid #374151;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
}

.mobile-menu-close {
  background: none;
  border: none;
  color: #9ca3af;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-close:hover {
  color: #ffffff;
  background: rgba(239, 68, 68, 0.1);
}

.mobile-menu-content {
  padding: 1rem;
}

.mobile-menu-link {
  display: block;
  color: #d1d5db;
  text-decoration: none;
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  margin-bottom: 0.25rem;
  transition: all 0.2s ease;
  font-size: 0.875rem;
  font-weight: 500;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.mobile-menu-link:hover,
.mobile-menu-link:focus {
  background: rgba(239, 68, 68, 0.1);
  color: #ffffff;
  outline: none;
}

.mobile-menu-link.active {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  font-weight: 600;
}

.mobile-menu-link i {
  margin-right: 0.75rem;
  width: 1rem;
  height: 1rem;
}

.mobile-menu-search {
  margin-bottom: 1rem;
}

.mobile-menu-search input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: #374151;
  border: 1px solid #4b5563;
  border-radius: 0.375rem;
  color: #ffffff;
  font-size: 0.875rem;
  min-height: 44px;
}

.mobile-menu-search input:focus {
  outline: none;
  border-color: #dc2626;
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.2);
}

.mobile-menu-search input::placeholder {
  color: #9ca3af;
}

.hamburger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(31, 41, 55, 0.5);
  border: 1px solid rgba(75, 85, 99, 0.3);
  color: #d1d5db;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 44px;
  z-index: 100;
}

/* Mobile-only visibility for hamburger */
@media (max-width: 768px) {
  .hamburger-btn {
    display: flex !important;
  }
}

@media (min-width: 769px) {
  .hamburger-btn {
    display: none !important;
  }
}

.hamburger-btn:hover {
  color: #ffffff;
  background: rgba(239, 68, 68, 0.1);
}

.hamburger-btn:focus {
  outline: 2px solid #dc2626;
  outline-offset: 2px;
}

/* Ensure desktop nav is hidden on mobile */
@media (max-width: 768px) {
  nav[aria-label="Main navigation"] {
    display: none !important;
  }
}

/* Prevent body scroll when mobile menu is open */
body.mobile-menu-open {
  overflow: hidden;
}

/* Dark mode toggle button - ensure visible on mobile */
button[onclick="toggleDarkMode()"] {
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 768px) {
  button[onclick="toggleDarkMode()"] {
    padding: 0.5rem;
  }
}

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