/* Layout Component Styles */

/* Container System */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container--narrow {
  max-width: 800px;
}

.container--wide {
  max-width: 1400px;
}

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

/* Page Layout */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page__content {
  flex: 1;
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  border-radius: 0 0 var(--radius-md) 0;
  z-index: var(--z-tooltip);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  outline: none;
}

/* Loading States */
.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 3px solid var(--color-gray-300);
  border-radius: 50%;
  border-top-color: var(--color-primary);
  animation: spin 0.8s linear infinite;
}

/* Responsive Media */
.responsive-iframe {
  position: relative;
  overflow: hidden;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio */
}

.responsive-iframe iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

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

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

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

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

.grid--responsive {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

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

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

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  justify-content: space-between;
}

.flex--end {
  justify-content: flex-end;
}

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

/* Section Layout */
.section {
  padding: var(--space-4xl) 0;
}

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

.section--lg {
  padding: var(--space-6xl) 0;
}

.section--no-padding {
  padding: 0;
}

.section__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
  line-height: var(--line-height-tight);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: 0;
  line-height: var(--line-height-normal);
}

/* Two-Column Layout */
.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.two-column--reverse {
  grid-template-columns: 1fr 1fr;
}

.two-column--reverse > :first-child {
  order: 2;
}

.two-column--reverse > :last-child {
  order: 1;
}

/* Content Layout */
.content {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

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

.content--narrow {
  max-width: 600px;
}

/* Sidebar Layout */
.sidebar-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: var(--space-3xl);
  align-items: start;
}

.sidebar-layout--reverse {
  grid-template-columns: var(--sidebar-width) 1fr;
}

/* Form-Specific Layouts */
.form-layout {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-2xl);
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.form-layout--card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  margin: var(--space-2xl) 0;
}

.form-layout--full-width {
  max-width: 100%;
  padding: 0;
  background-color: transparent;
  box-shadow: none;
}

/* Hero-Form Layout Pattern */
.hero-form-layout {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

.hero-form-layout .hero {
  grid-row: 1;
}

.hero-form-layout .form-section {
  grid-row: 2;
  display: flex;
  align-items: center;
  padding: var(--space-4xl) 0;
}

/* Sticky Elements */
.sticky {
  position: sticky;
  top: var(--space-lg);
}

.sticky--header {
  top: 0;
  z-index: var(--z-sticky);
}

/* Responsive Grid Breakdowns */
@media (max-width: 991px) {
  .grid--2-col,
  .grid--3-col,
  .grid--4-col {
    grid-template-columns: 1fr;
  }
  
  .two-column {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .sidebar-layout,
  .sidebar-layout--reverse {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .section {
    padding: var(--space-3xl) 0;
  }
  
  .section--lg {
    padding: var(--space-4xl) 0;
  }
}

@media (max-width: 767px) {
  .form-layout {
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
  }
  
  .form-layout--card {
    padding: var(--space-2xl);
    margin: var(--space-lg) 0;
  }
  
  .section__header {
    margin-bottom: var(--space-2xl);
  }
  
  .section__title {
    font-size: var(--font-size-2xl);
  }
  
  .hero-form-layout .form-section {
    padding: var(--space-3xl) 0;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .footer,
  .btn,
  .no-print {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: var(--color-black);
    background: var(--color-white);
  }
  
  a {
    color: var(--color-black);
    text-decoration: underline;
  }
  
  .container {
    max-width: 100%;
    padding: 0;
  }
  
  .section,
  .section--lg {
    padding: 1rem 0;
  }
  
  .form-layout,
  .form-layout--card {
    background: transparent;
    box-shadow: none;
    border: 1px solid var(--color-black);
    padding: 1rem;
  }
}