/**
 * @file
 * Responsive styles and media queries.
 */

/* Tablet breakpoint */
@media screen and (max-width: 992px) {
  :root {
    --sidebar-width: 250px;
    --header-logo-size: 120px;
  }

  .header__inner {
    gap: var(--spacing-md);
  }

  .site-name {
    font-size: 3.75rem;
  }

  .site-slogan {
    font-size: 1.25rem;
  }
}

/* Mobile breakpoint */
@media screen and (max-width: 768px) {
  :root {
    --block-gap: var(--spacing-md);
    --header-logo-size: 50px;
  }

  /* Page wrapper - no top padding, header is sticky */
  .page-wrapper {
    padding: 0 var(--spacing-sm) var(--spacing-sm);
    padding-top: 0;
  }

  /* Header mobile - sticky, full width, no margins */
  .header {
    position: sticky;
    top: 0;
    z-index: 100;
    border-radius: 0;
    margin-left: calc(-1 * var(--spacing-sm));
    margin-right: calc(-1 * var(--spacing-sm));
    margin-bottom: 0;
    padding: var(--spacing-xs) var(--spacing-sm);
    width: calc(100% + 2 * var(--spacing-sm));
  }

  .header__inner {
    grid-template-columns: var(--header-logo-size) 1fr auto;
    gap: var(--spacing-sm);
    align-items: center;
  }

  /* Logo AAC frame - smaller on mobile */
  .header__logo {
    border-width: 2px;
    border-radius: 8px;
    padding: 4px;
  }

  /* Show hamburger menu */
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    z-index: 1100;
    position: relative;
  }

  /* Hide desktop menu, show as slide-in panel */
  .header__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--color-bg-block);
    padding: 80px var(--spacing-lg) var(--spacing-lg);
    box-shadow: var(--shadow-medium);
    z-index: 1050;
    transition: right 0.3s ease;
    overflow-y: auto;
    text-align: left;
  }

  .header__menu.is-open {
    right: 0;
  }

  .header__menu .menu li {
    margin-bottom: 0;
  }

  .header__menu .menu a {
    padding: var(--spacing-sm) 0;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--color-border-light);
  }

  .header__menu .menu li:last-child a {
    border-bottom: none;
  }

  /* Mobile overlay - below header but darkens content */
  .menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .menu-overlay.is-visible {
    opacity: 1;
    visibility: visible;
  }

  /* Main content stacked */
  .main-content {
    grid-template-columns: 1fr;
    margin-top: var(--spacing-md);
  }

  /* Sidebar full width on mobile */
  .sidebar {
    order: 2;
  }

  .content {
    order: 1;
  }

  /* Header region spacing */
  .header-region {
    margin-top: var(--spacing-md);
  }

  /* Typography adjustments */
  .site-name {
    font-size: 1.5rem;
  }

  .site-slogan {
    font-size: 0.75rem;
    margin-top: 0.1rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }
}

/* Small mobile */
@media screen and (max-width: 480px) {
  :root {
    --header-logo-size: 40px;
  }

  .header {
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .header__inner {
    gap: var(--spacing-xs);
  }

  /* Logo AAC frame - even smaller */
  .header__logo {
    border-width: 2px;
    border-radius: 6px;
    padding: 3px;
  }

  .content,
  .sidebar,
  .footer {
    padding: var(--spacing-md);
  }

  .site-name {
    font-size: 1.2rem;
  }

  .site-slogan {
    font-size: 0.65rem;
  }

  .menu-toggle {
    width: 40px;
    height: 40px;
  }
}

/* Prevent scroll when menu is open */
body.menu-open {
  overflow: hidden;
}