/* ==========================================================================
   iya.ru — utility layer
   A small, token-driven utility set (Tailwind-compatible names where they
   exist) for layout, spacing and quick styling. Components in components.css
   always win over utilities in specificity order because utilities come last.

   Deliberately minimal: no CDN Tailwind, no build step, no purge needed.
   ========================================================================== */

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

.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }
.grow { flex-grow: 1; }
.shrink-0 { flex-shrink: 0; }

/* --- 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)); }
.grid-cols-auto { grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-full { grid-column: 1 / -1; }

/* --- alignment ----------------------------------------------------------- */
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-baseline { align-items: baseline; }
.items-stretch { align-items: stretch; }
.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; }
.self-start { align-self: flex-start; }
.self-center { align-self: center; }
.self-end { align-self: flex-end; }
.place-center { place-items: center; }
.text-start { text-align: start; }
.text-center { text-align: center; }
.text-end { text-align: end; }

/* --- gap ----------------------------------------------------------------- */
.gap-0 { gap: 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-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

/* --- spacing ------------------------------------------------------------- */
.m-0 { margin: 0; }
.mt-1 { margin-block-start: var(--space-1); }
.mt-2 { margin-block-start: var(--space-2); }
.mt-3 { margin-block-start: var(--space-3); }
.mt-4 { margin-block-start: var(--space-4); }
.mt-6 { margin-block-start: var(--space-6); }
.mt-8 { margin-block-start: var(--space-8); }
.mt-12 { margin-block-start: var(--space-12); }
.mb-1 { margin-block-end: var(--space-1); }
.mb-2 { margin-block-end: var(--space-2); }
.mb-3 { margin-block-end: var(--space-3); }
.mb-4 { margin-block-end: var(--space-4); }
.mb-6 { margin-block-end: var(--space-6); }
.mb-8 { margin-block-end: var(--space-8); }
.ms-auto { margin-inline-start: auto; }
.me-auto { margin-inline-end: auto; }
.mx-auto { margin-inline: auto; }
.my-0 { margin-block: 0; }

.p-0 { padding: 0; }
.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-inline: var(--space-2); }
.px-3 { padding-inline: var(--space-3); }
.px-4 { padding-inline: var(--space-4); }
.px-6 { padding-inline: var(--space-6); }
.py-1 { padding-block: var(--space-1); }
.py-2 { padding-block: var(--space-2); }
.py-3 { padding-block: var(--space-3); }
.py-4 { padding-block: var(--space-4); }
.py-6 { padding-block: var(--space-6); }
.py-8 { padding-block: var(--space-8); }
.py-12 { padding-block: var(--space-12); }
.py-16 { padding-block: var(--space-16); }

/* --- sizing -------------------------------------------------------------- */
.w-full { inline-size: 100%; }
.w-auto { inline-size: auto; }
.h-full { block-size: 100%; }
.min-h-screen { min-block-size: 100dvh; }
.max-w-sm { max-inline-size: var(--container-sm); }
.max-w-md { max-inline-size: var(--container-md); }
.max-w-lg { max-inline-size: var(--container-lg); }
.max-w-xl { max-inline-size: var(--container-xl); }
.max-w-prose { max-inline-size: 72ch; }

/* --- container ----------------------------------------------------------- */
.container {
  inline-size: 100%;
  max-inline-size: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--sm { max-inline-size: var(--container-sm); }
.container--md { max-inline-size: var(--container-md); }
.container--lg { max-inline-size: var(--container-lg); }
.container--2xl { max-inline-size: var(--container-2xl); }
.container--narrow { max-inline-size: var(--container-md); }

/* --- typography ---------------------------------------------------------- */
.text-2xs { font-size: var(--text-2xs); }
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-md { font-size: var(--text-md); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }

.font-regular { font-weight: var(--weight-regular); }
.font-medium { font-weight: var(--weight-medium); }
.font-semibold { font-weight: var(--weight-semibold); }
.font-bold { font-weight: var(--weight-bold); }

.leading-none { line-height: var(--leading-none); }
.leading-tight { line-height: var(--leading-tight); }
.leading-snug { line-height: var(--leading-snug); }
.leading-normal { line-height: var(--leading-normal); }
.leading-relaxed { line-height: var(--leading-relaxed); }

.tracking-tight { letter-spacing: var(--tracking-tight); }
.tracking-normal { letter-spacing: var(--tracking-normal); }
.tracking-wide { letter-spacing: var(--tracking-wide); }
.tracking-wider { letter-spacing: var(--tracking-wider); }

.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }
.normal-case { text-transform: none; }
.underline { text-decoration: underline; text-underline-offset: 3px; }
.no-underline { text-decoration: none; }
.line-through { text-decoration: line-through; }
.italic { font-style: italic; }
.whitespace-pre { white-space: pre; }
.whitespace-pre-wrap { white-space: pre-wrap; }
.break-all { word-break: break-all; }
.tabular { font-variant-numeric: tabular-nums; }

.font-sans { font-family: var(--font-sans); }
.font-mono { font-family: var(--font-mono); }

/* --- colours ------------------------------------------------------------- */
.text-body { color: var(--text); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-faint { color: var(--text-faint); }
.text-accent { color: var(--accent-text); }
.text-ok { color: var(--ok); }
.text-warn { color: var(--warn); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }
.text-link { color: var(--text-link); }

.bg-page { background-color: var(--bg); }
.bg-subtle { background-color: var(--bg-subtle); }
.bg-muted { background-color: var(--bg-muted); }
.bg-surface { background-color: var(--surface); }
.bg-accent { background-color: var(--accent); }
.bg-accent-soft { background-color: var(--accent-soft); }
.bg-transparent { background-color: transparent; }

.border-0 { border: 0; }
.border { border: 1px solid var(--border); }
.border-t { border-block-start: 1px solid var(--border); }
.border-b { border-block-end: 1px solid var(--border); }
.border-strong { border-color: var(--border-strong); }
.border-subtle { border-color: var(--border-subtle); }

/* --- radius & shadow ----------------------------------------------------- */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow-none { box-shadow: none; }
.shadow-xs { box-shadow: var(--shadow-xs); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* --- positioning --------------------------------------------------------- */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.static { position: static; }
.inset-0 { inset: 0; }
.z-10 { z-index: var(--z-sticky); }
.z-20 { z-index: var(--z-header); }
.z-50 { z-index: var(--z-modal); }

/* --- overflow & scroll --------------------------------------------------- */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }
.overflow-visible { overflow: visible; }
.scroll-smooth { scroll-behavior: smooth; }

/* --- interaction --------------------------------------------------------- */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }
.select-none { user-select: none; }
.select-all { user-select: all; }
.pointer-events-none { pointer-events: none; }
.no-tap-highlight { -webkit-tap-highlight-color: transparent; }
.touch-manipulation { touch-action: manipulation; }

/* --- effects ------------------------------------------------------------- */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-70 { opacity: 0.7; }
.opacity-100 { opacity: 1; }
.blur-sm { filter: blur(4px); }
.transition { transition: all var(--duration-fast) var(--ease-out); }
.transition-slow { transition: all var(--duration-base) var(--ease-out); }
.hover\:shadow:hover { box-shadow: var(--shadow-md); }
.hover\:border:hover { border-color: var(--border-strong); }

/* --- responsive ---------------------------------------------------------- */
@media (min-width: 640px) {
  .sm\:flex { display: flex; }
  .sm\:grid { display: grid; }
  .sm\:hidden { display: none; }
  .sm\:block { display: block; }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sm\:flex-row { flex-direction: row; }
  .sm\:items-center { align-items: center; }
  .sm\:justify-between { justify-content: space-between; }
  .sm\:text-lg { font-size: var(--text-lg); }
}

@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:grid { display: grid; }
  .md\:hidden { display: none; }
  .md\:block { display: block; }
  .md\:inline-flex { display: inline-flex; }
  .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)); }
  .md\:flex-row { flex-direction: row; }
  .md\:items-center { align-items: center; }
  .md\:justify-between { justify-content: space-between; }
  .md\:text-xl { font-size: var(--text-xl); }
  .md\:text-2xl { font-size: var(--text-2xl); }
}

@media (min-width: 1024px) {
  .lg\:flex { display: flex; }
  .lg\:grid { display: grid; }
  .lg\:hidden { display: none; }
  .lg\:block { display: block; }
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .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-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .lg\:col-span-2 { grid-column: span 2 / span 2; }
  .lg\:col-span-3 { grid-column: span 3 / span 3; }
  .lg\:text-3xl { font-size: var(--text-3xl); }
}

@media (min-width: 1280px) {
  .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .xl\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .xl\:col-span-2 { grid-column: span 2 / span 2; }
  .xl\:col-span-4 { grid-column: span 4 / span 4; }
}

/* Only show a block in its theme (used by the theme toggle icon swap). */
:root[data-theme='dark'] .only-light { display: none !important; }
:root:not([data-theme='dark']) .only-dark { display: none !important; }

/* Print-only / screen-only */
.print-only { display: none; }

@media print {
  .print-only { display: block; }
  .screen-only { display: none !important; }
}