/**
 * Layout System
 * Container, Grid, Flexbox utilities
 */

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

.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-2xl { max-width: var(--container-2xl); }

/* ========== GRID SYSTEM ========== */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

.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)); }

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

/* Gap utilities */
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-base); }
.gap-6 { gap: var(--spacing-xl); }
.gap-8 { gap: var(--spacing-2xl); }

/* ========== FLEXBOX ========== */
.flex {
  display: flex;
}

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

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

/* 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; }

/* 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; }

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

/* ========== SPACING ========== */

/* Margin */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.mt-2 { margin-top: var(--spacing-sm); }
.mt-4 { margin-top: var(--spacing-base); }
.mt-6 { margin-top: var(--spacing-xl); }
.mt-8 { margin-top: var(--spacing-2xl); }

.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-4 { margin-bottom: var(--spacing-base); }
.mb-6 { margin-bottom: var(--spacing-xl); }
.mb-8 { margin-bottom: var(--spacing-2xl); }

.ml-2 { margin-left: var(--spacing-sm); }
.ml-4 { margin-left: var(--spacing-base); }

.mr-2 { margin-right: var(--spacing-sm); }
.mr-4 { margin-right: var(--spacing-base); }

/* Padding */
.p-0 { padding: 0; }
.p-4 { padding: var(--spacing-base); }
.p-6 { padding: var(--spacing-xl); }
.p-8 { padding: var(--spacing-2xl); }

.px-4 { padding-left: var(--spacing-base); padding-right: var(--spacing-base); }
.px-6 { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }
.px-8 { padding-left: var(--spacing-2xl); padding-right: var(--spacing-2xl); }

.py-2 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-4 { padding-top: var(--spacing-base); padding-bottom: var(--spacing-base); }
.py-6 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
.py-8 { padding-top: var(--spacing-2xl); padding-bottom: var(--spacing-2xl); }
.py-12 { padding-top: var(--spacing-4xl); padding-bottom: var(--spacing-4xl); }
.py-16 { padding-top: var(--spacing-5xl); padding-bottom: var(--spacing-5xl); }
.py-20 { padding-top: var(--spacing-6xl); padding-bottom: var(--spacing-6xl); }

/* ========== POSITION ========== */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

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

.top-20 { top: var(--spacing-6xl); }

.z-10 { z-index: var(--z-dropdown); }
.z-20 { z-index: var(--z-sticky); }
.z-30 { z-index: var(--z-fixed); }
.z-40 { z-index: var(--z-modal-backdrop); }
.z-50 { z-index: var(--z-modal); }

/* ========== DISPLAY ========== */
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.hidden { display: none !important; }

/* ========== WIDTH ========== */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-screen { width: 100vw; }

.max-w-sm { max-width: var(--container-sm); }
.max-w-md { max-width: var(--container-md); }
.max-w-lg { max-width: var(--container-lg); }
.max-w-xl { max-width: var(--container-xl); }
.max-w-2xl { max-width: var(--container-2xl); }
.max-w-4xl { max-width: 896px; }
.max-w-7xl { max-width: var(--container-max-width); }

/* ========== HEIGHT ========== */
.h-full { height: 100%; }
.h-screen { height: 100vh; }
.min-h-screen { min-height: 100vh; }

/* ========== OVERFLOW ========== */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

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

/* ========== VISIBILITY ========== */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* ========== BORDER ========== */
.border { border: 1px solid var(--color-border); }
.border-t { border-top: 1px solid var(--color-border); }
.border-b { border-bottom: 1px solid var(--color-border); }
.border-l { border-left: 1px solid var(--color-border); }
.border-r { border-right: 1px solid var(--color-border); }

.border-0 { border: none; }

.rounded { border-radius: var(--radius-md); }
.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 ========== */
.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); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-none { box-shadow: none; }

/* ========== BACKGROUND ========== */
.bg-background { background-color: var(--color-background); }
.bg-card { background-color: var(--color-card); }
.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-accent { background-color: var(--color-accent); }
.bg-destructive { background-color: var(--color-destructive); }
.bg-muted { background-color: var(--color-muted); }

/* ========== TEXT COLOR ========== */
.text-foreground { color: var(--color-foreground); }
.text-primary { color: var(--color-primary); }
.text-primary-foreground { color: var(--color-primary-foreground); }
.text-accent { color: var(--color-accent); }
.text-destructive { color: var(--color-destructive); }
.text-muted-foreground { color: var(--color-muted-foreground); }

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

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

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.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); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }
.text-6xl { font-size: var(--text-6xl); }

.leading-tight { line-height: var(--leading-tight); }
.leading-normal { line-height: var(--leading-normal); }
.leading-relaxed { line-height: var(--leading-relaxed); }

.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }

.underline { text-decoration: underline; }
.no-underline { text-decoration: none; }

/* ========== TRANSITIONS ========== */
.transition {
  transition-property: all;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: var(--transition-base);
}

.transition-colors {
  transition-property: color, background-color, border-color;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: var(--transition-base);
}

.transition-opacity {
  transition-property: opacity;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: var(--transition-base);
}

/* ========== POINTER EVENTS ========== */
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* ========== SELECT ========== */
.select-none { user-select: none; }
.select-all { user-select: all; }