/* ============================================
   PULSBEAT MEDIA INC. - RESPONSIVE GRID SYSTEM
   CSS Grid-based Layout Framework
   ============================================ */

/* ---- CONTAINER ---- */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

/* Mobile (320px - 639px) */
.container {
  max-width: 100%;
}

/* Small (640px - 767px) */
@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
    padding-left: var(--spacing-6);
    padding-right: var(--spacing-6);
  }
}

/* Medium (768px - 1023px) */
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}

/* Large (1024px - 1279px) */
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
    padding-left: var(--spacing-8);
    padding-right: var(--spacing-8);
  }
}

/* Extra Large (1280px - 1535px) */
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* 2XL (1536px and above) */
@media (min-width: 1536px) {
  .container {
    max-width: var(--container-2xl);
  }
}

/* ---- GRID SYSTEM (CSS Grid) ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), 1fr);
  gap: var(--grid-gap);
  width: 100%;
}

/* Grid gap variants */
.grid.gap-sm {
  gap: var(--grid-gap-sm);
}

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

/* ---- GRID COLUMNS (Mobile-First) ---- */

/* Mobile: 1 column */
.grid {
  grid-template-columns: 1fr;
}

.grid > * {
  grid-column: 1 / -1;
}

/* Small: 2 columns */
@media (min-width: 640px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .col-span-1 { grid-column: span 1; }
  .col-span-2 { grid-column: span 2; }
}

/* Medium: 3 columns */
@media (min-width: 768px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .col-span-1 { grid-column: span 1; }
  .col-span-2 { grid-column: span 2; }
  .col-span-3 { grid-column: span 3; }
}

/* Large: 4 columns */
@media (min-width: 1024px) {
  .grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .col-span-1 { grid-column: span 1; }
  .col-span-2 { grid-column: span 2; }
  .col-span-3 { grid-column: span 3; }
  .col-span-4 { grid-column: span 4; }
}

/* Extra Large: 12 columns (Full Grid) */
@media (min-width: 1280px) {
  .grid {
    grid-template-columns: repeat(12, 1fr);
  }
  
  .col-span-1 { grid-column: span 1; }
  .col-span-2 { grid-column: span 2; }
  .col-span-3 { grid-column: span 3; }
  .col-span-4 { grid-column: span 4; }
  .col-span-5 { grid-column: span 5; }
  .col-span-6 { grid-column: span 6; }
  .col-span-7 { grid-column: span 7; }
  .col-span-8 { grid-column: span 8; }
  .col-span-9 { grid-column: span 9; }
  .col-span-10 { grid-column: span 10; }
  .col-span-11 { grid-column: span 11; }
  .col-span-12 { grid-column: span 12; }
}

/* ---- ROW UTILITIES ---- */
.grid.rows-auto {
  grid-auto-rows: auto;
}

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

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

/* ---- ALIGNMENT UTILITIES ---- */
.grid.items-start {
  align-items: start;
}

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

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

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

.grid.justify-start {
  justify-items: start;
}

.grid.justify-center {
  justify-items: center;
}

.grid.justify-end {
  justify-items: end;
}

.grid.justify-stretch {
  justify-items: stretch;
}

/* ---- CONTENT ALIGNMENT ---- */
.grid.content-start {
  align-content: start;
}

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

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

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

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

.grid.content-evenly {
  align-content: space-evenly;
}

/* ---- FLEXBOX SYSTEM (For Linear Layouts) ---- */
.flex {
  display: flex;
}

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

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

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

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

/* Justify Content */
.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;
}

/* Align Items */
.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;
}

/* Flex Grow/Shrink */
.flex-1 {
  flex: 1 1 0%;
}

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

.flex-none {
  flex: none;
}

/* ---- SPACING UTILITIES ---- */
/* Margin */
.m-0 { margin: var(--spacing-0); }
.m-1 { margin: var(--spacing-1); }
.m-2 { margin: var(--spacing-2); }
.m-3 { margin: var(--spacing-3); }
.m-4 { margin: var(--spacing-4); }
.m-5 { margin: var(--spacing-5); }
.m-6 { margin: var(--spacing-6); }
.m-8 { margin: var(--spacing-8); }
.m-10 { margin: var(--spacing-10); }
.m-12 { margin: var(--spacing-12); }
.m-16 { margin: var(--spacing-16); }
.m-20 { margin: var(--spacing-20); }
.m-24 { margin: var(--spacing-24); }
.m-32 { margin: var(--spacing-32); }

/* Padding */
.p-0 { padding: var(--spacing-0); }
.p-1 { padding: var(--spacing-1); }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.p-5 { padding: var(--spacing-5); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }
.p-10 { padding: var(--spacing-10); }
.p-12 { padding: var(--spacing-12); }
.p-16 { padding: var(--spacing-16); }
.p-20 { padding: var(--spacing-20); }
.p-24 { padding: var(--spacing-24); }
.p-32 { padding: var(--spacing-32); }

/* Padding X (horizontal) */
.px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
.px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }
.px-8 { padding-left: var(--spacing-8); padding-right: var(--spacing-8); }
.px-12 { padding-left: var(--spacing-12); padding-right: var(--spacing-12); }

/* Padding Y (vertical) */
.py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }
.py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }
.py-8 { padding-top: var(--spacing-8); padding-bottom: var(--spacing-8); }
.py-12 { padding-top: var(--spacing-12); padding-bottom: var(--spacing-12); }
.py-16 { padding-top: var(--spacing-16); padding-bottom: var(--spacing-16); }
.py-20 { padding-top: var(--spacing-20); padding-bottom: var(--spacing-20); }

/* ---- SIZING UTILITIES ---- */
.w-full {
  width: 100%;
}

.w-1\/2 {
  width: 50%;
}

.w-1\/3 {
  width: 33.333333%;
}

.w-2\/3 {
  width: 66.666667%;
}

.h-full {
  height: 100%;
}

.h-screen {
  height: 100vh;
}

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

/* ---- DISPLAY UTILITIES ---- */
.block {
  display: block;
}

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

.inline {
  display: inline;
}

.hidden {
  display: none;
}

.visible {
  visibility: visible;
}

.invisible {
  visibility: hidden;
}

/* Responsive Display */
@media (max-width: 767px) {
  .hidden-mobile {
    display: none;
  }
}

@media (min-width: 768px) {
  .hidden-desktop {
    display: none;
  }
}

/* ---- OVERFLOW UTILITIES ---- */
.overflow-hidden {
  overflow: hidden;
}

.overflow-auto {
  overflow: auto;
}

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

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

/* ---- POSITION UTILITIES ---- */
.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.fixed {
  position: fixed;
}

.sticky {
  position: sticky;
}

.inset-0 {
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

/* ---- ASPECT RATIO UTILITIES ---- */
.aspect-video {
  aspect-ratio: 16 / 9;
}

.aspect-square {
  aspect-ratio: 1 / 1;
}

.aspect-auto {
  aspect-ratio: auto;
}

/* ---- OBJECT FIT UTILITIES ---- */
.object-cover {
  object-fit: cover;
}

.object-contain {
  object-fit: contain;
}

.object-fill {
  object-fit: fill;
}

.object-scale-down {
  object-fit: scale-down;
}

/* ---- BORDER UTILITIES ---- */
.border {
  border: 1px solid var(--color-light-gray);
}

.border-t {
  border-top: 1px solid var(--color-light-gray);
}

.border-b {
  border-bottom: 1px solid var(--color-light-gray);
}

.border-l {
  border-left: 1px solid var(--color-light-gray);
}

.border-r {
  border-right: 1px solid var(--color-light-gray);
}

/* Border Radius */
.rounded {
  border-radius: var(--radius-base);
}

.rounded-sm {
  border-radius: var(--radius-sm);
}

.rounded-md {
  border-radius: var(--radius-md);
}

.rounded-lg {
  border-radius: var(--radius-lg);
}

.rounded-xl {
  border-radius: var(--radius-xl);
}

.rounded-full {
  border-radius: var(--radius-full);
}

/* ---- SHADOW UTILITIES ---- */
.shadow {
  box-shadow: var(--shadow-base);
}

.shadow-sm {
  box-shadow: var(--shadow-sm);
}

.shadow-md {
  box-shadow: var(--shadow-md);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

.shadow-xl {
  box-shadow: var(--shadow-xl);
}

.shadow-2xl {
  box-shadow: var(--shadow-2xl);
}

.shadow-primary {
  box-shadow: var(--shadow-primary);
}

.shadow-secondary {
  box-shadow: var(--shadow-secondary);
}

/* ---- TEXT UTILITIES ---- */
.text-left {
  text-align: left;
}

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

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

.text-justify {
  text-align: justify;
}

/* ---- OPACITY UTILITIES ---- */
.opacity-0 { opacity: 0; }
.opacity-25 { opacity: 0.25; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* ---- TRANSITION UTILITIES ---- */
.transition {
  transition: all var(--transition-base);
}

.transition-fast {
  transition: all var(--transition-fast);
}

.transition-slow {
  transition: all var(--transition-slow);
}

.transition-colors {
  transition: color, background-color, border-color var(--transition-base);
}

.transition-transform {
  transition: transform var(--transition-base);
}