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

@layer base {
  /* Ensure smooth scrolling */
  html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
  }

  /* Better touch targets on mobile */
  button, a {
    touch-action: manipulation;
  }

  /* Selection colors */
  ::selection {
    @apply bg-blue-500/30 text-blue-900 dark:text-blue-100;
  }

  /* Improved focus visible for accessibility */
  :focus-visible {
    @apply outline-2 outline-offset-2 outline-blue-500;
  }

  .dark :focus-visible {
    @apply outline-blue-400;
  }

  /* Skip link for accessibility */
  .skip-link {
    @apply sr-only focus:not-sr-only focus:absolute focus:top-4 focus:left-4 focus:z-50 focus:px-4 focus:py-2 focus:bg-blue-600 focus:text-white focus:rounded-lg;
  }

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

  ::-webkit-scrollbar-track {
    @apply bg-gray-100 dark:bg-gray-800;
  }

  ::-webkit-scrollbar-thumb {
    @apply bg-gray-300 dark:bg-gray-600 rounded-full;
  }

  ::-webkit-scrollbar-thumb:hover {
    @apply bg-gray-400 dark:bg-gray-500;
  }

  /* Responsive base styles */
  body {
    @apply text-sm sm:text-base;
    overflow-x: hidden;
  }
}

@layer components {
  /* Container that adapts to all screen sizes */
  .container-responsive {
    @apply w-full mx-auto px-4 sm:px-6 lg:px-8 xl:px-12 2xl:max-w-7xl 3xl:max-w-8xl 4xl:max-w-9xl;
  }

  /* Enhanced glass morphism */
  .glass {
    @apply bg-white/80 dark:bg-gray-800/80 backdrop-blur-xl border border-white/30 dark:border-gray-700/50;
    box-shadow: 
      0 4px 6px -1px rgba(0, 0, 0, 0.05),
      0 2px 4px -2px rgba(0, 0, 0, 0.05),
      inset 0 1px 0 0 rgba(255, 255, 255, 0.6);
  }

  .dark .glass {
    box-shadow: 
      0 4px 6px -1px rgba(0, 0, 0, 0.3),
      0 2px 4px -2px rgba(0, 0, 0, 0.2),
      inset 0 1px 0 0 rgba(255, 255, 255, 0.05);
  }

  /* Gradient text with animation */
  .gradient-text {
    @apply bg-clip-text text-transparent;
    background-image: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #06b6d4 100%);
    background-size: 200% 200%;
    animation: gradient-shift 8s ease infinite;
  }

  .dark .gradient-text {
    background-image: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #22d3ee 100%);
  }

  @keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
  }

  /* Modern shadow */
  .shadow-modern {
    box-shadow: 
      0 20px 25px -5px rgba(0, 0, 0, 0.08),
      0 8px 10px -6px rgba(0, 0, 0, 0.05),
      0 0 0 1px rgba(0, 0, 0, 0.02);
  }

  .dark .shadow-modern {
    box-shadow: 
      0 20px 25px -5px rgba(0, 0, 0, 0.4),
      0 8px 10px -6px rgba(0, 0, 0, 0.2),
      0 0 0 1px rgba(255, 255, 255, 0.02);
  }

  /* Primary button with enhanced effects */
  .btn-primary {
    @apply relative overflow-hidden bg-gradient-to-r from-blue-600 to-purple-600 text-white px-4 sm:px-6 py-2.5 sm:py-3 rounded-xl font-semibold transition-all duration-300;
    box-shadow: 
      0 4px 6px -1px rgba(59, 130, 246, 0.3),
      0 2px 4px -2px rgba(59, 130, 246, 0.2),
      inset 0 1px 0 0 rgba(255, 255, 255, 0.2);
  }

  .btn-primary::before {
    content: '';
    @apply absolute inset-0 bg-gradient-to-r from-purple-600 to-blue-600 opacity-0 transition-opacity duration-300;
  }

  .btn-primary:hover {
    @apply scale-105;
    box-shadow: 
      0 10px 15px -3px rgba(59, 130, 246, 0.4),
      0 4px 6px -4px rgba(59, 130, 246, 0.3),
      inset 0 1px 0 0 rgba(255, 255, 255, 0.2);
  }

  .btn-primary:hover::before {
    @apply opacity-100;
  }

  .btn-primary:active {
    @apply scale-100;
  }

  .btn-primary > * {
    @apply relative z-10;
  }

  /* Secondary button */
  .btn-secondary {
    @apply glass text-gray-900 dark:text-gray-100 px-4 sm:px-6 py-2.5 sm:py-3 rounded-xl font-semibold transition-all duration-300;
  }

  .btn-secondary:hover {
    @apply scale-105;
    box-shadow: 
      0 10px 15px -3px rgba(0, 0, 0, 0.1),
      0 4px 6px -4px rgba(0, 0, 0, 0.05);
  }

  .dark .btn-secondary:hover {
    box-shadow: 
      0 10px 15px -3px rgba(0, 0, 0, 0.4),
      0 4px 6px -4px rgba(0, 0, 0, 0.2);
  }

  /* Section titles - responsive */
  .section-title {
    @apply text-2xl sm:text-3xl md:text-4xl lg:text-5xl font-bold text-gray-900 dark:text-gray-100 mb-3 sm:mb-4 tracking-tight;
    letter-spacing: -0.02em;
  }

  .section-subtitle {
    @apply text-base sm:text-lg md:text-xl text-gray-600 dark:text-gray-300 px-2 sm:px-0 leading-relaxed;
  }

  /* Enhanced card with 3D hover */
  .card {
    @apply glass p-4 sm:p-6 lg:p-8 rounded-2xl transition-all duration-500;
    transform-style: preserve-3d;
    perspective: 1000px;
  }

  .card:hover {
    @apply -translate-y-1 sm:-translate-y-2;
    box-shadow: 
      0 25px 50px -12px rgba(0, 0, 0, 0.15),
      0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  }

  .dark .card:hover {
    box-shadow: 
      0 25px 50px -12px rgba(0, 0, 0, 0.5),
      0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  }

  /* Navigation link */
  .nav-link {
    @apply relative text-gray-600 dark:text-gray-300 hover:text-gray-900 dark:hover:text-gray-100 font-medium transition-colors duration-200;
  }

  .nav-link::after {
    content: '';
    @apply absolute -bottom-1 left-0 w-0 h-0.5 bg-gradient-to-r from-blue-500 to-purple-500 transition-all duration-300 rounded-full;
  }

  .nav-link:hover::after {
    @apply w-full;
  }

  /* Icon box */
  .icon-box {
    @apply w-10 h-10 sm:w-12 sm:h-12 rounded-xl flex items-center justify-center flex-shrink-0;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .group:hover .icon-box {
    transform: scale(1.1) rotate(3deg);
  }

  /* Section padding - responsive */
  .section-padding {
    @apply py-12 sm:py-16 md:py-20 lg:py-24;
  }

  /* Gradient border effect */
  .gradient-border {
    position: relative;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
  }

  .gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    border-radius: inherit;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6, #06b6d4);
    -webkit-mask: 
      linear-gradient(#fff 0 0) content-box, 
      linear-gradient(#fff 0 0);
    mask: 
      linear-gradient(#fff 0 0) content-box, 
      linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
  }

  /* Shimmer loading effect */
  .shimmer {
    background: linear-gradient(
      90deg,
      rgba(255, 255, 255, 0) 0%,
      rgba(255, 255, 255, 0.4) 50%,
      rgba(255, 255, 255, 0) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
  }

  @keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
  }

  /* Glow effects */
  .glow-blue {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3), 0 0 40px rgba(59, 130, 246, 0.1);
  }

  .glow-purple {
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3), 0 0 40px rgba(139, 92, 246, 0.1);
  }

  /* Number badge */
  .number-badge {
    @apply w-8 h-8 sm:w-10 sm:h-10 rounded-full bg-gradient-to-br from-blue-500 to-purple-500 flex items-center justify-center text-white font-bold text-sm sm:text-base;
    box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.3);
  }

  /* Status indicators */
  .status-dot {
    @apply w-2 h-2 rounded-full;
    animation: pulse-dot 2s ease-in-out infinite;
  }

  @keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
  }

  /* Code block styling */
  .code-block {
    @apply font-mono text-xs sm:text-sm bg-gray-900 text-gray-100 p-3 sm:p-4 rounded-xl;
    box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.3);
  }

  /* Feature highlight */
  .feature-highlight {
    @apply relative;
  }

  .feature-highlight::before {
    content: '';
    @apply absolute -inset-2 bg-gradient-to-r from-blue-500/10 to-purple-500/10 rounded-xl -z-10;
    filter: blur(8px);
  }

  /* Mobile-optimized touch targets */
  .touch-target {
    @apply min-h-[44px] min-w-[44px];
  }

  /* Responsive table wrapper */
  .table-wrapper {
    @apply overflow-x-auto -mx-4 px-4 sm:mx-0 sm:px-0;
    -webkit-overflow-scrolling: touch;
  }

  /* Responsive grid gaps */
  .grid-responsive {
    @apply gap-4 sm:gap-5 lg:gap-6;
  }
}

@layer utilities {
  /* Animation delays */
  .animate-delay-100 { animation-delay: 0.1s; }
  .animate-delay-200 { animation-delay: 0.2s; }
  .animate-delay-300 { animation-delay: 0.3s; }
  .animate-delay-400 { animation-delay: 0.4s; }
  .animate-delay-500 { animation-delay: 0.5s; }
  .animate-delay-600 { animation-delay: 0.6s; }
  .animate-delay-700 { animation-delay: 0.7s; }
  .animate-delay-800 { animation-delay: 0.8s; }
  .animate-delay-1000 { animation-delay: 1s; }
  .animate-delay-2000 { animation-delay: 2s; }

  /* Custom animations */
  .animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
  }

  .animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 0;
  }

  .animate-scale-in {
    animation: scaleIn 0.5s ease-out forwards;
  }

  .animate-slide-in-right {
    animation: slideInRight 0.5s ease-out forwards;
  }

  .animate-float {
    animation: float 6s ease-in-out infinite;
  }

  .animate-pulse-slow {
    animation: pulse-slow 4s ease-in-out infinite;
  }

  .animate-spin-slow {
    animation: spin 8s linear infinite;
  }

  /* Hover lift effect */
  .hover-lift {
    @apply transition-all duration-300;
  }

  .hover-lift:hover {
    @apply -translate-y-1;
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.1);
  }

  /* Text balance for better typography */
  .text-balance {
    text-wrap: balance;
  }

  /* Backdrop blur utilities */
  .backdrop-blur-xs {
    backdrop-filter: blur(2px);
  }

  /* Safe area for notched phones */
  .safe-area-inset {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }

  .safe-area-bottom {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

/* Keyframe animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-15px) rotate(1deg); }
  66% { transform: translateY(-8px) rotate(-1deg); }
}

@keyframes pulse-slow {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Print styles */
@media print {
  .glass {
    @apply bg-white border-gray-200;
    box-shadow: none !important;
  }
  
  .gradient-text {
    background: none !important;
    @apply text-gray-900;
  }

  /* Hide non-essential elements when printing */
  nav, footer, .no-print {
    display: none !important;
  }

  /* Ensure good contrast for printed content */
  body {
    @apply text-black bg-white;
  }

  /* Page breaks */
  .page-break {
    page-break-before: always;
  }

  /* Prevent orphans and widows */
  p, li {
    orphans: 3;
    widows: 3;
  }
}

/* Mobile-specific optimizations */
@media (max-width: 640px) {
  /* Larger touch targets on small screens */
  button, 
  a {
    @apply min-h-[44px] min-w-[44px];
  }

  /* Adjust card padding */
  .card {
    @apply p-4;
  }

  /* Smaller hero text on mobile */
  .section-title {
    @apply text-2xl;
  }
}

/* Tablet optimizations */
@media (min-width: 768px) and (max-width: 1024px) {
  .card {
    @apply p-6;
  }
}

/* Ultrawide screen optimizations */
@media (min-width: 1920px) {
  /* Larger text for better readability at distance */
  body {
    @apply text-lg;
  }

  /* More spacious layouts */
  .section-padding {
    @apply py-28;
  }

  /* Larger cards */
  .card {
    @apply p-10;
  }
}

/* Landscape mode on mobile */
@media (max-height: 500px) and (orientation: landscape) {
  .section-padding {
    @apply py-8;
  }

  .hero-min-height {
    min-height: auto;
  }
}