/**
 * FleetOps Landing Pages - Layout Utilities
 *
 * Container, section, grid, and flexbox layout utilities.
 * Following ZIMA brand minimal, geometric design principles.
 */

/* ============================================
 * CONTAINER
 * ============================================ */

.container {
  width: 100%;
  max-width: var(--container-xl);
  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);
}

.container-full {
  max-width: 100%;
  padding-left: 0;
  padding-right: 0;
}

.container-narrow {
  max-width: 720px;
}

/* ============================================
 * SECTIONS
 * ============================================ */

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

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

.section-lg {
  padding-top: calc(var(--space-section) * 1.5);
  padding-bottom: calc(var(--space-section) * 1.5);
}

/* Section with background */
.section-bg {
  background-color: var(--color-bg-secondary);
}

.section-bg-dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.section-bg-dark h1,
.section-bg-dark h2,
.section-bg-dark h3,
.section-bg-dark h4,
.section-bg-dark h5,
.section-bg-dark h6 {
  color: var(--color-text-inverse);
}

.section-bg-dark p {
  color: rgba(255, 255, 255, 0.8);
}

/* Section with gradient */
.section-gradient {
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
}

/* ============================================
 * GRID SYSTEM
 * ============================================ */

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

.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-5 { grid-template-columns: repeat(5, 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)); }

/* Grid gap variants */
.gap-sm { gap: var(--grid-gap-sm); }
.gap-md { gap: var(--grid-gap); }
.gap-lg { gap: var(--grid-gap-lg); }
.gap-xl { gap: var(--space-2xl); }
.gap-none { gap: 0; }

/* Column span utilities */
.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-full { grid-column: 1 / -1; }

/* Row span utilities */
.row-span-2 { grid-row: span 2 / span 2; }
.row-span-3 { grid-row: span 3 / span 3; }
.row-span-full { grid-row: 1 / -1; }

/* Responsive grid */
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
  .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)); }
}

@media (min-width: 1024px) {
  .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)); }
}

/* ============================================
 * FLEXBOX UTILITIES
 * ============================================ */

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

/* Wrap */
.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; }
.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; }

/* 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/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-shrink { flex-shrink: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* Gap for flex */
.flex-gap-sm { gap: var(--space-sm); }
.flex-gap-md { gap: var(--space-md); }
.flex-gap-lg { gap: var(--space-lg); }
.flex-gap-xl { gap: var(--space-xl); }

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

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

.m-xs { margin: var(--space-xs); }
.m-sm { margin: var(--space-sm); }
.m-md { margin: var(--space-md); }
.m-lg { margin: var(--space-lg); }
.m-xl { margin: var(--space-xl); }
.m-2xl { margin: var(--space-2xl); }

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

.ml-xs { margin-left: var(--space-xs); }
.ml-sm { margin-left: var(--space-sm); }
.ml-md { margin-left: var(--space-md); }
.ml-lg { margin-left: var(--space-lg); }
.ml-auto { margin-left: auto; }

.mr-xs { margin-right: var(--space-xs); }
.mr-sm { margin-right: var(--space-sm); }
.mr-md { margin-right: var(--space-md); }
.mr-lg { margin-right: var(--space-lg); }
.mr-auto { margin-right: auto; }

/* Padding */
.p-0 { padding: 0; }

.p-xs { padding: var(--space-xs); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.p-2xl { padding: var(--space-2xl); }

.pt-xs { padding-top: var(--space-xs); }
.pt-sm { padding-top: var(--space-sm); }
.pt-md { padding-top: var(--space-md); }
.pt-lg { padding-top: var(--space-lg); }
.pt-xl { padding-top: var(--space-xl); }
.pt-2xl { padding-top: var(--space-2xl); }

.pb-xs { padding-bottom: var(--space-xs); }
.pb-sm { padding-bottom: var(--space-sm); }
.pb-md { padding-bottom: var(--space-md); }
.pb-lg { padding-bottom: var(--space-lg); }
.pb-xl { padding-bottom: var(--space-xl); }
.pb-2xl { padding-bottom: var(--space-2xl); }

.px-xs { padding-left: var(--space-xs); padding-right: var(--space-xs); }
.px-sm { padding-left: var(--space-sm); padding-right: var(--space-sm); }
.px-md { padding-left: var(--space-md); padding-right: var(--space-md); }
.px-lg { padding-left: var(--space-lg); padding-right: var(--space-lg); }
.px-xl { padding-left: var(--space-xl); padding-right: var(--space-xl); }

.py-xs { padding-top: var(--space-xs); padding-bottom: var(--space-xs); }
.py-sm { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-lg { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }
.py-xl { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }

/* ============================================
 * WIDTH & HEIGHT
 * ============================================ */

.w-full { width: 100%; }
.w-screen { width: 100vw; }
.w-auto { width: auto; }
.w-fit { width: fit-content; }
.w-max { width: max-content; }
.w-min { width: min-content; }

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

.min-h-screen { min-height: 100vh; }
.min-h-full { min-height: 100%; }
.min-h-0 { min-height: 0; }

.max-w-full { max-width: 100%; }
.max-w-prose { max-width: 65ch; }

/* ============================================
 * POSITION UTILITIES
 * ============================================ */

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

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

/* ============================================
 * DISPLAY UTILITIES
 * ============================================ */

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

/* Responsive display */
@media (max-width: 639px) {
  .sm\:hidden { display: none; }
}

@media (min-width: 640px) {
  .sm\:block { display: block; }
  .sm\:flex { display: flex; }
}

@media (min-width: 768px) {
  .md\:block { display: block; }
  .md\:flex { display: flex; }
  .md\:hidden { display: none; }
}

@media (min-width: 1024px) {
  .lg\:block { display: block; }
  .lg\:flex { display: flex; }
  .lg\:hidden { display: none; }
}

/* ============================================
 * OVERFLOW
 * ============================================ */

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

/* ============================================
 * Z-INDEX
 * ============================================ */

.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-dropdown { z-index: var(--z-index-dropdown); }
.z-sticky { z-index: var(--z-index-sticky); }
.z-fixed { z-index: var(--z-index-fixed); }
.z-modal { z-index: var(--z-index-modal); }

/* ============================================
 * LAYOUT PATTERNS
 * ============================================ */

/* Hero section layout */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
  text-align: center;
  padding: var(--space-3xl) var(--container-padding);
}

.hero-content {
  max-width: 800px;
}

/* Two column layout */
.layout-2col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 768px) {
  .layout-2col {
    grid-template-columns: 1fr 1fr;
  }
}

/* Three column layout */
.layout-3col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

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

@media (min-width: 1024px) {
  .layout-3col {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Split layout (text + image) */
.split-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .split-layout {
    grid-template-columns: 1fr 1fr;
  }

  .split-layout.reverse {
    direction: rtl;
  }

  .split-layout.reverse > * {
    direction: ltr;
  }
}

/* Center content */
.center-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* Space between children */
.space-y-xs > * + * { margin-top: var(--space-xs); }
.space-y-sm > * + * { margin-top: var(--space-sm); }
.space-y-md > * + * { margin-top: var(--space-md); }
.space-y-lg > * + * { margin-top: var(--space-lg); }
.space-y-xl > * + * { margin-top: var(--space-xl); }
.space-y-2xl > * + * { margin-top: var(--space-2xl); }

.space-x-xs > * + * { margin-left: var(--space-xs); }
.space-x-sm > * + * { margin-left: var(--space-sm); }
.space-x-md > * + * { margin-left: var(--space-md); }
.space-x-lg > * + * { margin-left: var(--space-lg); }
.space-x-xl > * + * { margin-left: var(--space-xl); }