/**
 * Layout System - Grid and Flexbox Utilities
 * Mobile-first responsive layout system
 * Requirements 2.1, 2.2, 2.3, 2.4, 2.7
 */

/* ===== Container System ===== */
/* Requirement 2.4 - Flexible grid systems that adapt to different screen sizes */

.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

/* Mobile-first: no max-width on mobile */
/* Requirement 2.1 - Mobile-optimized layouts (< 768px) */

/* Tablet breakpoint - Requirement 2.2 */
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }
}

/* Desktop breakpoint - Requirement 2.3 */
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
  }
}

/* Large desktop breakpoint */
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Container size variants */
.container--sm {
  max-width: var(--container-sm);
}

.container--md {
  max-width: var(--container-md);
}

.container--lg {
  max-width: var(--container-lg);
}

.container--xl {
  max-width: var(--container-xl);
}

.container--fluid {
  max-width: 100%;
}

/* ===== Section Layout ===== */
/* Requirement 2.7 - Mobile-first CSS architecture */

.section {
  padding-top: var(--section-padding-mobile);
  padding-bottom: var(--section-padding-mobile);
}

@media (min-width: 1024px) {
  .section {
    padding-top: var(--section-padding-desktop);
    padding-bottom: var(--section-padding-desktop);
  }
}

/* Section background variants */
.section--dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
}

.section--light {
  background-color: var(--color-bg-light);
  color: var(--color-text-primary);
}

/* ===== Flexbox Utilities ===== */
/* Requirement 2.4 - Flexible grid systems */

.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

/* Flex direction */
.flex-row {
  flex-direction: row;
}

.flex-row-reverse {
  flex-direction: row-reverse;
}

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

.flex-col-reverse {
  flex-direction: column-reverse;
}

/* Flex wrap */
.flex-wrap {
  flex-wrap: wrap;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

.flex-wrap-reverse {
  flex-wrap: wrap-reverse;
}

/* Justify content */
.justify-start {
  justify-content: flex-start;
}

.justify-end {
  justify-content: flex-end;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

.justify-evenly {
  justify-content: space-evenly;
}

/* Align items */
.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

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

.items-baseline {
  align-items: baseline;
}

.items-stretch {
  align-items: stretch;
}

/* Align content */
.content-start {
  align-content: flex-start;
}

.content-end {
  align-content: flex-end;
}

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

.content-between {
  align-content: space-between;
}

.content-around {
  align-content: space-around;
}

.content-stretch {
  align-content: stretch;
}

/* Align self */
.self-auto {
  align-self: auto;
}

.self-start {
  align-self: flex-start;
}

.self-end {
  align-self: flex-end;
}

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

.self-stretch {
  align-self: stretch;
}

/* Flex grow and shrink */
.flex-1 {
  flex: 1 1 0%;
}

.flex-auto {
  flex: 1 1 auto;
}

.flex-initial {
  flex: 0 1 auto;
}

.flex-none {
  flex: none;
}

.flex-grow {
  flex-grow: 1;
}

.flex-grow-0 {
  flex-grow: 0;
}

.flex-shrink {
  flex-shrink: 1;
}

.flex-shrink-0 {
  flex-shrink: 0;
}

/* Gap utilities */
.gap-xs {
  gap: var(--spacing-xs);
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.gap-xl {
  gap: var(--spacing-xl);
}

.gap-2xl {
  gap: var(--spacing-2xl);
}

.gap-3xl {
  gap: var(--spacing-3xl);
}

/* ===== Grid System ===== */
/* Requirement 2.4 - Flexible grid systems */

.grid {
  display: grid;
}

.inline-grid {
  display: inline-grid;
}

/* Grid template columns - Mobile first (1 column default) */
.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-6 {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

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

/* Tablet responsive grid columns - Requirement 2.2 */
@media (min-width: 768px) {
  .md\:grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  .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\:grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  
  .md\:grid-cols-12 {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
}

/* Desktop responsive grid columns - Requirement 2.3 */
@media (min-width: 1024px) {
  .lg\:grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  .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-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-12 {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
}

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

.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;
}

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

/* Grid row span */
.row-span-1 {
  grid-row: span 1 / span 1;
}

.row-span-2 {
  grid-row: span 2 / span 2;
}

.row-span-3 {
  grid-row: span 3 / span 3;
}

.row-span-4 {
  grid-row: span 4 / span 4;
}

.row-span-full {
  grid-row: 1 / -1;
}

/* Grid auto flow */
.grid-flow-row {
  grid-auto-flow: row;
}

.grid-flow-col {
  grid-auto-flow: column;
}

.grid-flow-dense {
  grid-auto-flow: dense;
}

/* Grid auto columns */
.auto-cols-auto {
  grid-auto-columns: auto;
}

.auto-cols-min {
  grid-auto-columns: min-content;
}

.auto-cols-max {
  grid-auto-columns: max-content;
}

.auto-cols-fr {
  grid-auto-columns: minmax(0, 1fr);
}

/* Grid auto rows */
.auto-rows-auto {
  grid-auto-rows: auto;
}

.auto-rows-min {
  grid-auto-rows: min-content;
}

.auto-rows-max {
  grid-auto-rows: max-content;
}

.auto-rows-fr {
  grid-auto-rows: minmax(0, 1fr);
}

/* ===== Spacing Utilities ===== */

/* Margin utilities */
.m-0 { margin: 0; }
.m-xs { margin: var(--spacing-xs); }
.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-lg { margin: var(--spacing-lg); }
.m-xl { margin: var(--spacing-xl); }
.m-2xl { margin: var(--spacing-2xl); }
.m-3xl { margin: var(--spacing-3xl); }
.m-auto { margin: auto; }

/* Margin top */
.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }
.mt-3xl { margin-top: var(--spacing-3xl); }
.mt-auto { margin-top: auto; }

/* Margin bottom */
.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }
.mb-3xl { margin-bottom: var(--spacing-3xl); }
.mb-auto { margin-bottom: auto; }

/* Margin left */
.ml-0 { margin-left: 0; }
.ml-xs { margin-left: var(--spacing-xs); }
.ml-sm { margin-left: var(--spacing-sm); }
.ml-md { margin-left: var(--spacing-md); }
.ml-lg { margin-left: var(--spacing-lg); }
.ml-xl { margin-left: var(--spacing-xl); }
.ml-2xl { margin-left: var(--spacing-2xl); }
.ml-3xl { margin-left: var(--spacing-3xl); }
.ml-auto { margin-left: auto; }

/* Margin right */
.mr-0 { margin-right: 0; }
.mr-xs { margin-right: var(--spacing-xs); }
.mr-sm { margin-right: var(--spacing-sm); }
.mr-md { margin-right: var(--spacing-md); }
.mr-lg { margin-right: var(--spacing-lg); }
.mr-xl { margin-right: var(--spacing-xl); }
.mr-2xl { margin-right: var(--spacing-2xl); }
.mr-3xl { margin-right: var(--spacing-3xl); }
.mr-auto { margin-right: auto; }

/* Margin horizontal */
.mx-0 { margin-left: 0; margin-right: 0; }
.mx-xs { margin-left: var(--spacing-xs); margin-right: var(--spacing-xs); }
.mx-sm { margin-left: var(--spacing-sm); margin-right: var(--spacing-sm); }
.mx-md { margin-left: var(--spacing-md); margin-right: var(--spacing-md); }
.mx-lg { margin-left: var(--spacing-lg); margin-right: var(--spacing-lg); }
.mx-xl { margin-left: var(--spacing-xl); margin-right: var(--spacing-xl); }
.mx-2xl { margin-left: var(--spacing-2xl); margin-right: var(--spacing-2xl); }
.mx-3xl { margin-left: var(--spacing-3xl); margin-right: var(--spacing-3xl); }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Margin vertical */
.my-0 { margin-top: 0; margin-bottom: 0; }
.my-xs { margin-top: var(--spacing-xs); margin-bottom: var(--spacing-xs); }
.my-sm { margin-top: var(--spacing-sm); margin-bottom: var(--spacing-sm); }
.my-md { margin-top: var(--spacing-md); margin-bottom: var(--spacing-md); }
.my-lg { margin-top: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.my-xl { margin-top: var(--spacing-xl); margin-bottom: var(--spacing-xl); }
.my-2xl { margin-top: var(--spacing-2xl); margin-bottom: var(--spacing-2xl); }
.my-3xl { margin-top: var(--spacing-3xl); margin-bottom: var(--spacing-3xl); }
.my-auto { margin-top: auto; margin-bottom: auto; }

/* Padding utilities */
.p-0 { padding: 0; }
.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }
.p-2xl { padding: var(--spacing-2xl); }
.p-3xl { padding: var(--spacing-3xl); }

/* Padding top */
.pt-0 { padding-top: 0; }
.pt-xs { padding-top: var(--spacing-xs); }
.pt-sm { padding-top: var(--spacing-sm); }
.pt-md { padding-top: var(--spacing-md); }
.pt-lg { padding-top: var(--spacing-lg); }
.pt-xl { padding-top: var(--spacing-xl); }
.pt-2xl { padding-top: var(--spacing-2xl); }
.pt-3xl { padding-top: var(--spacing-3xl); }

/* Padding bottom */
.pb-0 { padding-bottom: 0; }
.pb-xs { padding-bottom: var(--spacing-xs); }
.pb-sm { padding-bottom: var(--spacing-sm); }
.pb-md { padding-bottom: var(--spacing-md); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.pb-xl { padding-bottom: var(--spacing-xl); }
.pb-2xl { padding-bottom: var(--spacing-2xl); }
.pb-3xl { padding-bottom: var(--spacing-3xl); }

/* Padding left */
.pl-0 { padding-left: 0; }
.pl-xs { padding-left: var(--spacing-xs); }
.pl-sm { padding-left: var(--spacing-sm); }
.pl-md { padding-left: var(--spacing-md); }
.pl-lg { padding-left: var(--spacing-lg); }
.pl-xl { padding-left: var(--spacing-xl); }
.pl-2xl { padding-left: var(--spacing-2xl); }
.pl-3xl { padding-left: var(--spacing-3xl); }

/* Padding right */
.pr-0 { padding-right: 0; }
.pr-xs { padding-right: var(--spacing-xs); }
.pr-sm { padding-right: var(--spacing-sm); }
.pr-md { padding-right: var(--spacing-md); }
.pr-lg { padding-right: var(--spacing-lg); }
.pr-xl { padding-right: var(--spacing-xl); }
.pr-2xl { padding-right: var(--spacing-2xl); }
.pr-3xl { padding-right: var(--spacing-3xl); }

/* Padding horizontal */
.px-0 { padding-left: 0; padding-right: 0; }
.px-xs { padding-left: var(--spacing-xs); padding-right: var(--spacing-xs); }
.px-sm { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-md { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-lg { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-xl { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }
.px-2xl { padding-left: var(--spacing-2xl); padding-right: var(--spacing-2xl); }
.px-3xl { padding-left: var(--spacing-3xl); padding-right: var(--spacing-3xl); }

/* Padding vertical */
.py-0 { padding-top: 0; padding-bottom: 0; }
.py-xs { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-xl { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
.py-2xl { padding-top: var(--spacing-2xl); padding-bottom: var(--spacing-2xl); }
.py-3xl { padding-top: var(--spacing-3xl); padding-bottom: var(--spacing-3xl); }

/* ===== Display Utilities ===== */

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

/* Responsive display utilities - Mobile */
@media (max-width: 767px) {
  .sm\:block { display: block; }
  .sm\:inline-block { display: inline-block; }
  .sm\:inline { display: inline; }
  .sm\:hidden { display: none; }
}

/* Responsive display utilities - Tablet */
@media (min-width: 768px) {
  .md\:block { display: block; }
  .md\:inline-block { display: inline-block; }
  .md\:inline { display: inline; }
  .md\:hidden { display: none; }
}

/* Responsive display utilities - Desktop */
@media (min-width: 1024px) {
  .lg\:block { display: block; }
  .lg\:inline-block { display: inline-block; }
  .lg\:inline { display: inline; }
  .lg\:hidden { display: none; }
}

/* ===== Width and Height Utilities ===== */

.w-full { width: 100%; }
.w-auto { width: auto; }
.w-screen { width: 100vw; }

.h-full { height: 100%; }
.h-auto { height: auto; }
.h-screen { height: 100vh; }

.min-h-screen { min-height: 100vh; }
.min-h-full { min-height: 100%; }

.max-w-full { max-width: 100%; }
.max-w-screen { max-width: 100vw; }

/* ===== Position Utilities ===== */

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

/* ===== Overflow Utilities ===== */

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

.overflow-x-auto { overflow-x: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-x-visible { overflow-x: visible; }
.overflow-x-scroll { overflow-x: scroll; }

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

/* ===== Z-Index Utilities ===== */

.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.z-auto { z-index: auto; }

/* ===== Responsive Flexbox Utilities ===== */
/* Requirement 2.7 - Mobile-first CSS architecture */

/* Tablet responsive flex utilities */
@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:inline-flex { display: inline-flex; }
  .md\:flex-row { flex-direction: row; }
  .md\:flex-col { flex-direction: column; }
  .md\:flex-wrap { flex-wrap: wrap; }
  .md\:flex-nowrap { flex-wrap: nowrap; }
}

/* Desktop responsive flex utilities */
@media (min-width: 1024px) {
  .lg\:flex { display: flex; }
  .lg\:inline-flex { display: inline-flex; }
  .lg\:flex-row { flex-direction: row; }
  .lg\:flex-col { flex-direction: column; }
  .lg\:flex-wrap { flex-wrap: wrap; }
  .lg\:flex-nowrap { flex-wrap: nowrap; }
}