/**
 * Layout CSS - Dark Theme Simplicity
 * Containers, grids, flexbox, and responsive layout
 * Version: 1.0.0
 */

/* ============================================
   CONTAINERS
   ============================================ */

/* Base Container */
.container {
  width: 100%;
  max-width: var(--content-full);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Content Containers */
.content-container {
  width: 100%;
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

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

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

/* Entry Content Container */
.entry-content {
  width: 100%;
  max-width: var(--content-default);
  margin: 0 auto;
}

/* ============================================
   MAIN LAYOUT STRUCTURE
   ============================================ */

/* Site Wrapper */
.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Site Main */
.site-main {
  flex: 1;
  width: 100%;
  background-color: var(--dark-bg);
}

/* Article Container */
.article-container {
  width: 100%;
  background-color: var(--dark-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

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

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

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Content Layout Grid */
.content-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.content-layout--sidebar {
  grid-template-columns: 1fr;
}

/* ============================================
   FLEXBOX LAYOUTS
   ============================================ */

/* Page Header */
.page-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  padding: var(--spacing-2xl) var(--spacing-md);
  background-color: var(--dark-300);
  position: relative;
}

/* Hero Section */
.hero-container {
  width: 100%;
  margin-bottom: var(--spacing-xl);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-xl) var(--spacing-md);
}

/* ============================================
   SIDEBAR LAYOUTS
   ============================================ */

.sidebar-container {
  position: sticky;
  top: 100px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

/* ============================================
   SECTION LAYOUTS
   ============================================ */

.section {
  padding: var(--spacing-2xl) 0;
}

.section--large {
  padding: var(--spacing-3xl) 0;
}

.section--small {
  padding: var(--spacing-xl) 0;
}

/* ============================================
   CARD LAYOUTS
   ============================================ */

.card {
  background-color: var(--dark-300);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base);
}

.card:hover {
  transform: translateY(-2px);
}

.card-content {
  padding: var(--spacing-lg);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

/* Tablet (768px and up) */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
  
  .content-container {
    padding: 0 var(--spacing-xl);
  }
  
  .hero-content {
    padding: var(--spacing-2xl) var(--spacing-xl);
  }
  
  .section {
    padding: var(--spacing-3xl) 0;
  }
  
  .section--large {
    padding: calc(var(--spacing-3xl) * 1.5) 0;
  }
  
  /* Grid responsive */
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .md\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Flex responsive */
  .md\:flex-row {
    flex-direction: row;
  }
  
  .md\:items-start {
    align-items: flex-start;
  }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
  
  .page-header {
    min-height: 400px;
    padding: var(--spacing-3xl) var(--spacing-xl);
  }
  
  /* Content with sidebar layout */
  .content-layout--sidebar {
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-2xl);
  }
  
  .content-layout--sidebar-left {
    grid-template-columns: 300px 1fr;
  }
  
  /* Entry content sizing */
  .entry-content {
    font-size: 1.125rem;
  }
  
  .no-sidebar .entry-content {
    max-width: var(--content-wide);
    font-size: 1.2rem;
  }
  
  /* Grid responsive */
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .lg\:grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .lg\:grid-cols-5 {
    grid-template-columns: repeat(5, 1fr);
  }
  
  /* Display utilities */
  .lg\:block {
    display: block;
  }
}

/* Large Desktop (1280px and up) */
@media (min-width: 1280px) {
  .content-container {
    padding: 0 var(--spacing-2xl);
  }
  
  .no-sidebar .entry-content {
    max-width: var(--content-full);
  }
  
  /* Grid responsive */
  .xl\:grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .xl\:grid-cols-5 {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* Wide Desktop (1440px and up) */
@media (min-width: 1440px) {
  .no-sidebar .entry-content {
    max-width: 1100px;
  }
}

/* ============================================
   SPECIAL LAYOUTS
   ============================================ */

/* Full Width Section */
.full-width {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}

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

/* Split Layout */
.split-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .split-layout {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

/* Masonry Layout */
.masonry {
  columns: 1;
  column-gap: var(--spacing-lg);
}

.masonry > * {
  break-inside: avoid;
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
  .masonry {
    columns: 2;
  }
}

@media (min-width: 1024px) {
  .masonry {
    columns: 3;
  }
}

/* ============================================
   SPACING & GAPS
   ============================================ */

/* Section spacing */
.space-y-1 > * + * { margin-top: var(--spacing-sm); }
.space-y-2 > * + * { margin-top: var(--spacing-md); }
.space-y-3 > * + * { margin-top: var(--spacing-lg); }
.space-y-4 > * + * { margin-top: var(--spacing-xl); }
.space-y-5 > * + * { margin-top: var(--spacing-2xl); }

/* Responsive padding */
.px-responsive {
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

@media (min-width: 768px) {
  .px-responsive {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  .px-responsive {
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
  }
}

/* ============================================
   Z-INDEX SCALE
   ============================================ */
.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: 1000; }
.z-sticky { z-index: 1020; }
.z-fixed { z-index: 1030; }
.z-modal-backdrop { z-index: 1040; }
.z-modal { z-index: 1050; }
.z-popover { z-index: 1060; }
.z-tooltip { z-index: 1070; }