/* Tailwind CSS utility classes - optimized for PR Platform */
/* This file provides Tailwind-like utilities without the full build */

/* Flexbox & Grid */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Spacing */
.m-0 { margin: 0; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.p-2 { padding: 8px; }
.p-4 { padding: 16px; }
.p-6 { padding: 24px; }
.p-8 { padding: 32px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.py-2 { padding-top: 8px; padding-bottom: 8px; }

/* Typography */
.text-xs { font-size: 12px; }
.text-sm { font-size: 14px; }
.text-base { font-size: 16px; }
.text-lg { font-size: 18px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }
.text-3xl { font-size: 30px; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-white { color: #fff; }
.text-muted { color: var(--pr-muted); }
.text-primary { color: var(--pr-primary); }
.leading-tight { line-height: 1.25; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.75; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Width & Height */
.w-full { width: 100%; }
.h-full { height: 100%; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-7xl { max-width: 80rem; }

/* Backgrounds */
.bg-white { background: #fff; }
.bg-surface { background: var(--pr-surface); }
.bg-muted { background: var(--pr-bg); }
.bg-primary { background: var(--pr-primary); }
.rounded-sm { border-radius: var(--pr-radius-sm); }
.rounded { border-radius: var(--pr-radius); }
.rounded-lg { border-radius: var(--pr-radius-lg); }
.rounded-full { border-radius: 9999px; }
.shadow-sm { box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.shadow { box-shadow: var(--pr-shadow); }
.shadow-lg { box-shadow: var(--pr-shadow-lg); }

/* Borders */
.border { border: 1px solid var(--pr-border); }
.border-t { border-top: 1px solid var(--pr-border); }
.border-b { border-bottom: 1px solid var(--pr-border); }

/* Visibility */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }

/* Animations */
.transition { transition: var(--pr-transition); }
.hover\:shadow-lg:hover { box-shadow: var(--pr-shadow-lg); }
.hover\:translate-y-1:hover { transform: translateY(-4px); }
.cursor-pointer { cursor: pointer; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

// Media queries in Tailwind style
@media (max-width: 768px) {
  .md\:hidden { display: none; }
  .md\:grid-cols-1 { grid-template-columns: 1fr; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:flex-col { flex-direction: column; }
}
@media (max-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}