/* FounderOS - Optimized Production CSS */
/* Replaces Tailwind CDN for better performance */

/* Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  scroll-behavior: smooth;
  touch-action: manipulation;
}

body {
  margin: 0;
  line-height: inherit;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior-y: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6, p { margin: 0; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: inherit;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.flex-1 { flex: 1; }

/* Positioning */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }
.top-full { top: 100%; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }
.z-100 { z-index: 100; }
.z-1000 { z-index: 1000; }
.z-2000 { z-index: 2000; }
.z-9999 { z-index: 9999; }

/* Width & Max-Width */
.w-full { width: 100%; }
.w-6 { width: 1.5rem; }
.w-10 { width: 2.5rem; }
.w-20 { width: 5rem; }
.w-24 { width: 6rem; }
.w-48 { width: 12rem; }
.w-64 { width: 16rem; }
.w-1px { width: 1px; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-7xl { max-width: 80rem; }
.max-w-full { max-width: 100%; }
.min-w-200px { min-width: 200px; }
.max-w-600px { max-width: 600px; }
.max-w-900px { max-width: 900px; }

/* Height */
.h-6 { height: 1.5rem; }
.h-10 { height: 2.5rem; }
.h-20 { height: 5rem; }
.h-48 { height: 12rem; }
.h-1px { height: 1px; }
.max-h-80vh { max-height: 80vh; }

/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.pt-2 { padding-top: 0.5rem; }
.pt-8 { padding-top: 2rem; }
.pb-2 { padding-bottom: 0.5rem; }
.pb-6 { padding-bottom: 1.5rem; }

/* Margin */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-4 { margin-top: 1rem; margin-bottom: 1rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-20 { margin-top: 5rem; }
.mr-2 { margin-right: 0.5rem; }
.ml-2 { margin-left: 0.5rem; }
.-m-1 { margin: -0.25rem; }

/* Colors */
.bg-white { background-color: #ffffff; }
.bg-black { background-color: #000000; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-gray-600 { background-color: #4b5563; }
.bg-gray-700 { background-color: #374151; }
.bg-gray-800 { background-color: #1f2937; }
.bg-gray-900 { background-color: #111827; }
.bg-indigo-50 { background-color: #eef2ff; }
.bg-indigo-100 { background-color: #e0e7ff; }
.bg-indigo-600 { background-color: #4f46e5; }
.bg-purple-50 { background-color: #faf5ff; }
.bg-purple-600 { background-color: #9333ea; }
.bg-green-600 { background-color: #16a34a; }
.bg-blue-100 { background-color: #dbeafe; }
.bg-blue-600 { background-color: #2563eb; }
.bg-pink-100 { background-color: #fce7f3; }
.bg-pink-600 { background-color: #db2777; }
.bg-orange-600 { background-color: #ea580c; }
.bg-opacity-50 { --tw-bg-opacity: 0.5; }
.bg-opacity-90 { --tw-bg-opacity: 0.9; }

.text-white { color: #ffffff; }
.text-black { color: #000000; }
.text-gray-300 { color: #d1d5db; }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-900 { color: #111827; }
.text-indigo-400 { color: #818cf8; }
.text-indigo-600 { color: #4f46e5; }
.text-blue-600 { color: #2563eb; }
.text-green-600 { color: #16a34a; }
.text-orange-300 { color: #fdba74; }
.text-yellow-500 { color: #eab308; }

/* Borders */
.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-t { border-top-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-800 { border-color: #1f2937; }
.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

/* Shadows */
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }

/* Text */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-black { font-weight: 900; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.uppercase { text-transform: uppercase; }
.tracking-wider { letter-spacing: 0.05em; }
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-y-auto { overflow-y: auto; }
.overflow-x-auto { overflow-x-auto; }

/* Transitions */
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.hover\:shadow-md:hover { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1); }
.hover\:shadow-2xl:hover { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }
.hover\:opacity-90:hover { opacity: 0.9; }
.hover\:bg-gray-50:hover { background-color: #f9fafb; }
.hover\:bg-indigo-700:hover { background-color: #4338ca; }
.hover\:text-gray-900:hover { color: #111827; }

/* Space Between */
.space-x-2 > * + * { margin-left: 0.5rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }

/* Divide */
.divide-y > * + * { border-top-width: 1px; }
.divide-gray-200 > * + * { border-color: #e5e7eb; }

/* Container */
.container { max-width: 100%; margin: 0 auto; padding: 0 1rem; }

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Hover Effects */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-fade-in { animation: fadeIn 0.5s ease-in-out; }
.animate-slide-up { animation: slideUp 0.5s ease-out; }
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }

.scroll-appear {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-appear.animate-fade-in {
  opacity: 1;
  transform: translateY(0);
}

/* Grids */
#irs-forms-grid,
#templates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

@media (min-width: 768px) {
  #irs-forms-grid,
  #templates-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Cards */
.template-card {
  background: #fff;
  border-radius: 1rem;
  padding: 1.5rem;
  border: 2px solid #e5e7eb;
  transition: all 0.3s ease;
}

.template-card:hover {
  border-color: #667eea;
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
}

/* Shopping Cart Badge */
.cart-badge {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
  background: #667eea;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.cart-badge:hover {
  background: #5568d3;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.cart-count {
  background: #fff;
  color: #667eea;
  border-radius: 9999px;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  margin-left: 0.5rem;
}

/* Cart Modal */
.cart-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 1rem;
}

.cart-modal-content {
  background: white;
  border-radius: 1rem;
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 2rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid #e5e7eb;
}

.cart-item:last-child {
  border-bottom: none;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  display: inline-block;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.btn-primary:hover {
  opacity: 0.9;
  box-shadow: 0 6px 12px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
  background: white;
  color: #667eea;
  border: 2px solid #667eea;
}

.btn-secondary:hover {
  background: #f5f7ff;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Table Styles */
table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 1rem 1.5rem;
  text-align: left;
}

thead {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

tbody tr {
  border-bottom: 1px solid #e5e7eb;
  transition: background 0.2s ease;
}

tbody tr:hover {
  background: #f9fafb;
}

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
}

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

/* Background Gradients */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
.from-indigo-600 { --tw-gradient-from: #4f46e5; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(79, 70, 229, 0)); }
.from-indigo-50 { --tw-gradient-from: #eef2ff; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(238, 242, 255, 0)); }
.from-purple-600 { --tw-gradient-from: #9333ea; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(147, 51, 234, 0)); }
.from-orange-500 { --tw-gradient-from: #f97316; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(249, 115, 22, 0)); }
.from-gray-900 { --tw-gradient-from: #111827; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(17, 24, 39, 0)); }
.to-purple-600 { --tw-gradient-to: #9333ea; }
.to-purple-50 { --tw-gradient-to: #faf5ff; }
.to-red-500 { --tw-gradient-to: #ef4444; }
.to-gray-800 { --tw-gradient-to: #1f2937; }

/* Glass Effect */
.glass {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Skip to Main */
.skip-to-main {
  position: absolute;
  left: -9999px;
  z-index: 999;
  padding: 1em;
  background-color: black;
  color: white;
  text-decoration: none;
}

.skip-to-main:focus {
  left: 50%;
  transform: translateX(-50%);
}

/* Cursor */
.cursor-pointer { cursor: pointer; }

/* Responsive Breakpoints - Mobile First */
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\:flex { display: flex; }
  .md\:hidden { display: none !important; }
  .md\:block { display: block; }
  .md\:inline-flex { display: inline-flex; }
  .md\:px-0 { padding-left: 0; padding-right: 0; }
  .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
  .md\:col-span-2 { grid-column: span 2 / span 2; }
  .md\:\!hidden { display: none !important; }
}

@media (min-width: 1024px) {
  .lg\:text-7xl { font-size: 4.5rem; line-height: 1; }
}

/* Mobile Specific */
@media (max-width: 767px) {
  #irs-forms-grid,
  #templates-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }

  .cart-modal-content {
    padding: 1rem;
  }

  table {
    font-size: 0.875rem;
  }

  th, td {
    padding: 0.75rem;
  }

  .grid.grid-cols-2 {
    grid-template-columns: 1fr;
  }
}

/* Performance Optimizations */
.lazyload {
  opacity: 0;
  transition: opacity 0.3s;
}

.lazyload.loaded {
  opacity: 1;
}

/* 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 */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

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