*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

.bg-gray-50 { background-color: #f9fafb; }
.bg-white { background-color: #ffffff; }
.bg-gray-100 { background-color: #f3f4f6; }

.text-gray-800 { color: #1f2937; }
.text-gray-600 { color: #4b5563; }
.text-gray-500 { color: #6b7280; }
.text-gray-400 { color: #9ca3af; }

.border { border-width: 1px; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-100 { border-color: #f3f4f6; }
.border-t { border-top-width: 1px; }
.border-l { border-left-width: 1px; }
.border-b { border-bottom-width: 1px; }

.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-full { border-radius: 9999px; }

.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1); }

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.block { display: block; }
.hidden { display: none; }

.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-grow { flex-grow: 1; }
.flex-1 { flex: 1 1 0%; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.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; }

.w-full { width: 100%; }
.w-6 { width: 1.5rem; }
.w-8 { width: 2rem; }
.w-16 { width: 4rem; }
.w-40 { width: 10rem; }
.h-6 { height: 1.5rem; }
.h-8 { height: 2rem; }
.h-16 { height: 4rem; }
.h-full { height: 100%; }
.min-h-\[60px\] { min-height: 60px; }
.max-w-7xl { max-width: 80rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }

.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-10 { padding-top: 2.5rem; padding-bottom: 2.5rem; }
.m-4 { margin: 1rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-1 { margin-top: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.pr-1 { padding-right: 0.25rem; }

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.font-medium { font-weight: 500; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.text-center { text-align: center; }

.overflow-hidden { overflow: hidden; }
.overflow-y-auto { overflow-y: auto; }

.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }

.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }

.hover\:bg-gray-200:hover { background-color: #e5e7eb; }
.hover\:shadow-xl:hover { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1); }
.hover\:border-gray-200:hover { border-color: #e5e7eb; }
.hover\:bg-gray-50:hover { background-color: #f9fafb; }

.opacity-50 { opacity: 0.5; }
.pointer-events-none { pointer-events: none; }

@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:gap-4 { gap: 1rem; }
}

@media (min-width: 768px) {
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\:gap-5 { gap: 1.25rem; }
  .md\:flex-row { flex-direction: row; }
  .md\:w-2\/3 { width: 66.666667%; }
  .md\:w-1\/3 { width: 33.333333%; }
  .md\:border-t-0 { border-top-width: 0; }
  .md\:border-l { border-left-width: 1px; }
}

.col-span-full { grid-column: 1 / -1; }

.space-y-1 > * + * { margin-top: 0.25rem; }