/**
 * Layout Styles
 * Grid, containers, spacing, and structural elements
 */

/* ============================================
   Base Styles
   ============================================ */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  margin: 0;
  padding: 0;
}

[dir="rtl"] body {
  font-family: var(--font-arabic);
}

/* ============================================
   Containers
   ============================================ */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-6);
  }
}

@media (min-width: 1200px) {
  .container {
    padding-inline: var(--space-8);
  }
}

/* ============================================
   Sections
   ============================================ */
section {
  padding-block: var(--section-spacing-mobile);
}

@media (min-width: 768px) {
  section {
    padding-block: var(--section-spacing);
  }
}

/* ============================================
   Homepage Container
   ============================================ */
.homepage-container {
  min-height: 100vh;
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .section-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-6);
  }
}

.section-header-text {
  flex: 1;
  min-width: 0;
}

.section-title {
  position: relative;
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  line-height: var(--leading-tight);
  padding-bottom: var(--space-3);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 2.5rem;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

[dir="ltr"] .section-title::after {
  right: auto;
  left: 0;
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--text-2xl);
  }
}

.section-description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 40rem;
  line-height: var(--leading-relaxed);
  margin-bottom: 0;
}

.section-cta {
  flex-shrink: 0;
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state .container {
  padding-block: var(--space-16);
}

.empty-state i {
  color: var(--color-gray-300);
  font-size: 6rem;
}

.empty-state h2 {
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.empty-state p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* ============================================
   Site Top Bar
   ============================================ */
.site-topbar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  padding-block: .35rem;
  font-size: var(--text-sm, .8125rem);
}

/* Social icon links */
.topbar-social-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 1.25rem;
  line-height: 1;
  padding: .25rem;
  transition: color var(--transition-fast, .15s);
}

.topbar-social-link:hover {
  color: var(--color-text-primary);
}

.language-link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: var(--space-1) var(--space-2);
}

.language-link:hover {
  color: var(--color-primary);
}

.language-link.active {
  color: var(--color-primary);
  font-weight: var(--weight-semibold);
}

.language-divider {
  color: var(--color-border);
  user-select: none;
}

/* Responsive: hide top bar on xs/sm (< 576px) */
@media (max-width: 575.98px) {
  .site-topbar { display: none; }
}

/* ============================================
   Custom Grid Utilities (Bootstrap Extends)
   ============================================ */
/* Note: Use Bootstrap's built-in .row, .col-*, and .g-* classes
   These are just custom extensions if needed */

/* ============================================
   Accessibility
   ============================================ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Skip to main content link */
.skip-to-main {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-3) var(--space-5);
  text-decoration: none;
  border-radius: var(--radius-md);
  z-index: var(--z-tooltip);
  transition: top var(--transition-fast);
}

.skip-to-main:focus {
  top: var(--space-4);
}

/* Focus visible styles */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}