/* Search overlay — appears below the sticky header on mobile (<768px)
   On desktop (≥768px) the inline search form is used instead, this overlay
   is hidden via aria-hidden and visibility:hidden. */

.search-overlay {
  position: fixed;
  top: 64px; /* height of site-header */
  left: 0;
  right: 0;
  /* Above header so overlay isn't clipped by sticky context */
  z-index: calc(var(--z-header) + 10);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-card-hover);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition:
    opacity 180ms ease-out,
    transform 180ms ease-out,
    visibility 180ms ease-out;
}

.search-overlay--open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Respect user's motion preference */
@media (prefers-reduced-motion: reduce) {
  .search-overlay {
    transition: opacity 180ms ease-out, visibility 180ms ease-out;
    transform: none;
  }
  .search-overlay--open {
    transform: none;
  }
}

.search-overlay__inner {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

.search-overlay__form {
  display: flex;
  align-items: center;
  flex: 1;
  gap: var(--space-sm);
}

.search-overlay__input {
  flex: 1;
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-soft);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-15);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.search-overlay__input:focus {
  border-color: var(--color-primary);
  background: var(--color-surface);
  outline: none;
}

.search-overlay__input:focus-visible {
  box-shadow: var(--shadow-focus);
}

.search-overlay__submit {
  flex-shrink: 0;
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm);
}

.search-overlay__close {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-sm);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.search-overlay__close:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

/* On desktop the overlay is never used */
@media (min-width: 768px) {
  .search-overlay {
    display: none;
  }
}