/* Layout */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.inline-block { display: inline-block; }
.grid { display: grid; }
.hidden { display: none; }
.relative { position: relative; }
.absolute { position: absolute; }

/* Flex */
.flex-1 { flex: 1 1 0%; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

/* Gap */
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-2\.5 { gap: 0.625rem; }
.gap-3 { gap: 0.75rem; }
.gap-3\.5 { gap: 0.875rem; }
.gap-6 { gap: 1.5rem; }

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

/* Text */
.text-center { text-align: center; }
.list-none { list-style: none; }
.no-underline { text-decoration: none; }
.overflow-hidden { overflow: hidden; }
.whitespace-nowrap { white-space: nowrap; }

/* Responsive (sm = 640px) */
@media (min-width: 640px) {
    .sm\:flex { display: flex; }
    .sm\:block { display: block; }
    .sm\:hidden { display: none; }
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .sm\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}