/* AITBC Custom CSS - Production Optimized */

/* Reset and Base */
*,
::before,
::after {
  box-sizing: border-box;
  border-width: 0;
  border-style: solid;
  border-color: #e5e7eb;
}

html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

body {
  margin: 0;
  line-height: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container { max-width: 640px; }
}
@media (min-width: 768px) {
  .container { max-width: 768px; }
}
@media (min-width: 1024px) {
  .container { max-width: 1024px; }
}

/* Layout */
.flex { display: flex; }
.grid { display: grid; }
.hidden { display: none; }

.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* Sizing */
.w-full { width: 100%; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-8 { width: 2rem; }
.max-w-md { max-width: 28rem; }

.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-8 { height: 2rem; }

/* Spacing */
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }

.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.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; }

.pr-12 { padding-right: 3rem; }
.pr-16 { padding-right: 4rem; }

.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

.space-x-3 > :not([hidden]) ~ :not([hidden]) {
  --tw-space-x-reverse: 0;
  margin-right: calc(0.75rem * var(--tw-space-x-reverse));
  margin-left: calc(0.75rem * calc(1 - var(--tw-space-x-reverse)));
}
.space-x-6 > :not([hidden]) ~ :not([hidden]) {
  --tw-space-x-reverse: 0;
  margin-right: calc(1.5rem * var(--tw-space-x-reverse));
  margin-left: calc(1.5rem * calc(1 - var(--tw-space-x-reverse)));
}
.space-y-3 > :not([hidden]) ~ :not([hidden]) {
  --tw-space-y-reverse: 0;
  margin-top: calc(0.75rem * calc(1 - var(--tw-space-y-reverse)));
  margin-bottom: calc(0.75rem * var(--tw-space-y-reverse));
}
.space-y-4 > :not([hidden]) ~ :not([hidden]) {
  --tw-space-y-reverse: 0;
  margin-top: calc(1rem * calc(1 - var(--tw-space-y-reverse)));
  margin-bottom: calc(1rem * var(--tw-space-y-reverse));
}

/* Typography */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }

/* Colors - Light Mode */
.text-gray-500 { color: rgb(107 114 128); }
.text-gray-600 { color: rgb(75 85 99); }
.text-gray-700 { color: rgb(55 65 81); }
.text-gray-800 { color: rgb(31 41 55); }
.text-gray-900 { color: rgb(17 24 39); }
.text-orange-600 { color: rgb(251 146 60); }
.text-orange-800 { color: rgb(154 52 18); }
.text-blue-600 { color: rgb(37 99 235); }
.text-blue-800 { color: rgb(30 64 175); }
.text-green-500 { color: rgb(34 197 94); }
.text-green-600 { color: rgb(22 163 74); }
.text-purple-600 { color: rgb(147 51 234); }
.text-white { color: rgb(255 255 255); }

/* Background Colors - Light Mode */
.bg-white { background-color: rgb(255 255 255); }
.bg-gray-50 { background-color: rgb(249 250 251); }
.bg-gray-100 { background-color: rgb(243 244 246); }
.bg-gray-200 { background-color: rgb(229 231 235); }
.bg-orange-50 { background-color: rgb(255 251 235); }
.bg-orange-600 { background-color: rgb(251 146 60); }
.bg-orange-700 { background-color: rgb(194 65 12); }
.bg-blue-50 { background-color: rgb(239 246 255); }
.bg-blue-600 { background-color: rgb(37 99 235); }
.bg-blue-700 { background-color: rgb(29 78 216); }
.bg-green-600 { background-color: rgb(22 163 74); }
.bg-green-700 { background-color: rgb(21 128 61); }
.bg-purple-100 { background-color: rgb(243 232 255); }
.bg-purple-600 { background-color: rgb(147 51 234); }
.bg-black { background-color: rgb(0 0 0); }

/* Borders */
.border { border-width: 1px; }
.border-b { border-bottom-width: 1px; }
.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }

/* Shadow */
.shadow { box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); }

/* Transitions */
.transition { transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1); }
.transition-colors { transition: color 150ms cubic-bezier(0.4, 0, 0.2, 1), background-color 150ms cubic-bezier(0.4, 0, 0.2, 1); }
.duration-300 { transition-duration: 300ms; }

/* Hover Effects */
.hover\:bg-gray-200:hover { background-color: rgb(229 231 235); }
.hover\:bg-gray-300:hover { background-color: rgb(209 213 219); }
.hover\:bg-orange-100:hover { background-color: rgb(255 237 213); }
.hover\:bg-orange-200:hover { background-color: rgb(254 215 170); }
.hover\:bg-orange-700:hover { background-color: rgb(194 65 12); }
.hover\:bg-blue-700:hover { background-color: rgb(29 78 216); }
.hover\:bg-green-700:hover { background-color: rgb(21 128 61); }
.hover\:bg-purple-100:hover { background-color: rgb(243 232 255); }
.hover\:text-orange-200:hover { color: rgb(254 215 170); }
.hover\:text-purple-200:hover { color: rgb(233 213 255); }

/* Dark Mode */
.dark .dark\:bg-gray-900 { background-color: rgb(17 24 39); }
.dark .dark\:bg-gray-800 { background-color: rgb(31 41 55); }
.dark .dark\:bg-gray-700 { background-color: rgb(55 65 81); }
.dark .dark\:border-gray-700 { border-color: rgb(55 65 81); }
.dark .dark\:border-gray-600 { border-color: rgb(75 85 99); }
.dark .dark\:text-white { color: rgb(255 255 255); }
.dark .dark\:text-gray-300 { color: rgb(209 213 219); }
.dark .dark\:text-gray-400 { color: rgb(156 163 175); }
.dark .dark\:text-green-400 { color: rgb(74 222 128); }
.dark .dark\:text-blue-400 { color: rgb(96 165 250); }
.dark .dark\:text-orange-200 { color: rgb(254 215 170); }
.dark .dark\:text-blue-200 { color: rgb(191 219 254); }
.dark .dark\:hover\:bg-gray-600:hover { background-color: rgb(75 85 99); }
.dark .dark\:hover\:bg-gray-700:hover { background-color: rgb(55 65 81); }

/* Custom Components */
.gradient-bg {
  background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
}

.card-hover {
  transition: all 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.pulse-animation {
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.5; }
  100% { opacity: 1; }
}

/* Form Elements */
input, button, select, textarea {
  font-family: inherit;
  font-size: 100%;
  line-height: inherit;
  color: inherit;
  margin: 0;
  padding: 0;
}

button {
  cursor: pointer;
}

input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
}