/**
 * Utility classes — layout helpers for markup.
 *
 * Spacing unit = 0.2rem (≈4px при html 20px / макетная сетка ×4).
 * Scale: 0, 4, 8, 12, 16, 24, 32, 48, 64 → --space-0…8
 */

:root {
  --space-0: 0;
  --space-1: 0.2rem;   /* 4 */
  --space-2: 0.4rem;   /* 8 */
  --space-3: 0.6rem;   /* 12 */
  --space-4: 0.8rem;   /* 16 */
  --space-5: 1.2rem;   /* 24 */
  --space-6: 1.6rem;   /* 32 */
  --space-7: 2.4rem;   /* 48 */
  --space-8: 3.2rem;   /* 64 */
}

/* -------------------------------------------------------------------------
   Display
   ------------------------------------------------------------------------- */

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

/* -------------------------------------------------------------------------
   Flex
   ------------------------------------------------------------------------- */

.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }
.items-baseline { align-items: baseline; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

.self-start { align-self: flex-start; }
.self-center { align-self: center; }
.self-end { align-self: flex-end; }
.self-stretch { align-self: stretch; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }
.grow { flex-grow: 1; }
.grow-0 { flex-grow: 0; }
.shrink { flex-shrink: 1; }
.shrink-0 { flex-shrink: 0; }

/* -------------------------------------------------------------------------
   Grid
   ------------------------------------------------------------------------- */

.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)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-6 { grid-column: span 6 / span 6; }
.col-span-12 { grid-column: span 12 / span 12; }

.grid-rows-2 { grid-template-rows: repeat(2, minmax(0, auto)); }
.grid-rows-3 { grid-template-rows: repeat(3, minmax(0, auto)); }

.place-center {
  place-items: center;
  place-content: center;
}

/* -------------------------------------------------------------------------
   Gap
   ------------------------------------------------------------------------- */

.gap-0 { gap: var(--space-0); }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-7 { gap: var(--space-7); }
.gap-8 { gap: var(--space-8); }

.gap-x-2 { column-gap: var(--space-2); }
.gap-x-4 { column-gap: var(--space-4); }
.gap-x-6 { column-gap: var(--space-6); }
.gap-y-2 { row-gap: var(--space-2); }
.gap-y-4 { row-gap: var(--space-4); }
.gap-y-6 { row-gap: var(--space-6); }

/* -------------------------------------------------------------------------
   Spacing — margin
   ------------------------------------------------------------------------- */

.m-0 { margin: var(--space-0); }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-auto { margin: auto; }

.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

.mt-0 { margin-top: var(--space-0); }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-auto { margin-top: auto; }

.mb-0 { margin-bottom: var(--space-0); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

/* -------------------------------------------------------------------------
   Spacing — padding
   ------------------------------------------------------------------------- */

.p-0 { padding: var(--space-0); }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-5 { padding-left: var(--space-5); padding-right: var(--space-5); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }

.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-5 { padding-top: var(--space-5); padding-bottom: var(--space-5); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }

/* -------------------------------------------------------------------------
   Sizing
   ------------------------------------------------------------------------- */

.w-full { width: 100%; }
.w-auto { width: auto; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.min-w-0 { min-width: 0; }
.min-h-0 { min-height: 0; }

.max-w-sm { max-width: 19.2rem; }
.max-w-md { max-width: 22.4rem; }
.max-w-lg { max-width: 25.6rem; }
.max-w-xl { max-width: 28.8rem; }
.max-w-2xl { max-width: 33.6rem; }
.max-w-container { max-width: 72rem; } /* 1440px @ html 20px */
.max-w-full { max-width: 100%; }

/* -------------------------------------------------------------------------
   Text
   ------------------------------------------------------------------------- */

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

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sr-only {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: normal !important;
}

/* -------------------------------------------------------------------------
   Position / overflow
   ------------------------------------------------------------------------- */

.relative { position: relative; }
.absolute { position: absolute; }
.sticky { position: sticky; }

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

/* -------------------------------------------------------------------------
   Responsive — tablet+
   ------------------------------------------------------------------------- */

@media (min-width: 768px) {
  .md-flex { display: flex; }
  .md-grid { display: grid; }
  .md-hidden { display: none; }
  .md-block { display: block; }

  .md-flex-row { flex-direction: row; }
  .md-flex-col { flex-direction: column; }

  .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)); }
}

/* -------------------------------------------------------------------------
   Responsive — desktop+
   ------------------------------------------------------------------------- */

@media (min-width: 1024px) {
  .lg-flex { display: flex; }
  .lg-grid { display: grid; }
  .lg-hidden { display: none; }
  .lg-block { display: block; }

  .lg-grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg-grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg-grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}