/* Mobile-First Responsive Design System - Base */

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

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

@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
    padding-left: var(--spacing-8);
    padding-right: var(--spacing-8);
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
    padding-left: var(--spacing-10);
    padding-right: var(--spacing-10);
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
    padding-left: var(--spacing-12);
    padding-right: var(--spacing-12);
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: var(--container-2xl);
    padding-left: var(--spacing-16);
    padding-right: var(--spacing-16);
  }
}

@media (min-width: 1920px) {
  .container {
    max-width: var(--container-3xl);
    padding-left: var(--spacing-20);
    padding-right: var(--spacing-20);
  }
}

/* Fluid container for full-width layouts */
.container-fluid {
  width: 100%;
  padding-right: var(--spacing-4);
  padding-left: var(--spacing-4);
  margin-right: auto;
  margin-left: auto;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-4);
}

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

@media (min-width: 640px) {
  .grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  .grid-cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1536px) {
  .grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

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

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

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

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

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

.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;
}

.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;
}

/* Mobile-first responsive breakpoints */
@media (max-width: 575.98px) {
  /* Mobile styles */
  .mobile-stack {
    flex-direction: column;
  }
  
  .mobile-full-width {
    width: 100%;
  }
  
  .mobile-text-center {
    text-align: center;
  }
}

@media (min-width: 576px) and (max-width: 767.98px) {
  /* Small tablet styles */
  .mobile-stack {
    flex-direction: row;
  }
}