/*
 * FAQ Help Centre — Search Modal
 * Requires: theme-variables.css
 *
 * Triggered by: clicking .faq-topbar__search-trigger OR Cmd/Ctrl+K
 * Dismissed by: Escape, clicking outside, or clicking the close button
 *
 * Structure:
 *
 *   <div class="faq-search-modal" id="faq-search-modal" role="dialog" aria-modal="true" aria-label="Search">
 *     <div class="faq-search-modal__overlay"></div>
 *     <div class="faq-search-modal__box">
 *       <div class="faq-search-modal__header">
 *         <svg class="faq-search-modal__icon">...</svg>
 *         <input class="faq-search-modal__input" type="text" placeholder="Search..." id="faq-search-input" autocomplete="off">
 *         <button class="faq-search-modal__close" aria-label="Close search">ESC</button>
 *       </div>
 *       <div class="faq-search-modal__results" id="faq-search-results"></div>
 *       <div class="faq-search-modal__footer">
 *         <span>↑↓ navigate</span>
 *         <span>↵ open</span>
 *         <span>esc close</span>
 *       </div>
 *     </div>
 *   </div>
 */

/* ─── Modal backdrop ─────────────────────────────────────────────────────── */
.faq-search-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 500;
  background-color: var(--faq-bg-search-modal);
  backdrop-filter: blur(4px);
  align-items: flex-start;
  justify-content: center;
  padding-top: 80px;
}

.faq-search-modal.is-open {
  display: flex;
}

/* ─── Modal box ──────────────────────────────────────────────────────────── */
.faq-search-modal__box {
  width: 100%;
  max-width: 580px;
  border-radius: 12px;
  background-color: var(--faq-bg-search-box);
  border: 1px solid var(--faq-border);
  box-shadow: var(--faq-shadow-search);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 120px);
}

/* ─── Header (input row) ─────────────────────────────────────────────────── */
.faq-search-modal__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--faq-border);
}

.faq-search-modal__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--faq-text-muted);
}

.faq-search-modal__input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: 16px;
  color: var(--faq-text-primary);
  font-family: inherit;
}

.faq-search-modal__input::placeholder {
  color: var(--faq-text-muted);
}

.faq-search-modal__close {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--faq-border);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 11px;
  color: var(--faq-text-muted);
  cursor: pointer;
  font-family: inherit;
  transition: color 0.12s ease, border-color 0.12s ease;
}

.faq-search-modal__close:hover {
  color: var(--faq-text-primary);
  border-color: var(--faq-text-muted);
}

/* ─── Results list ───────────────────────────────────────────────────────── */
.faq-search-modal__results {
  overflow-y: auto;
  flex: 1;
  padding: 8px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--faq-border) transparent;
}

.faq-search-modal__results::-webkit-scrollbar { width: 4px; }
.faq-search-modal__results::-webkit-scrollbar-thumb { background-color: var(--faq-border); border-radius: 2px; }

/* Empty / no-results state */
.faq-search-modal__empty {
  padding: 32px 20px;
  text-align: center;
  color: var(--faq-text-muted);
  font-size: 14px;
}

/* Initial hint (before any typing) */
.faq-search-modal__hint {
  padding: 24px 20px;
  text-align: center;
  color: var(--faq-text-muted);
  font-size: 13px;
}

/* Individual result */
.faq-search-result {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 16px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: background-color 0.1s ease;
  border-left: 3px solid transparent;
}

.faq-search-result:hover,
.faq-search-result.is-focused {
  background-color: var(--faq-nav-active-bg);
  border-left-color: var(--faq-accent);
}

.faq-search-result__section {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--faq-text-muted);
}

.faq-search-result__title {
  font-size: 15px;
  font-weight: 500;
  color: var(--faq-text-primary);
}

.faq-search-result__title mark {
  background: none;
  color: var(--faq-accent);
  font-weight: 700;
}

.faq-search-result__excerpt {
  font-size: 13px;
  color: var(--faq-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.faq-search-result__excerpt mark {
  background: none;
  color: var(--faq-accent);
  font-weight: 600;
}

/* Section divider between result groups */
.faq-search-group-label {
  padding: 8px 16px 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--faq-text-muted);
  border-top: 1px solid var(--faq-border);
  margin-top: 4px;
}

.faq-search-group-label:first-child {
  border-top: none;
  margin-top: 0;
}

/* ─── Footer (keyboard hints) ────────────────────────────────────────────── */
.faq-search-modal__footer {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  border-top: 1px solid var(--faq-border);
  font-size: 12px;
  color: var(--faq-text-muted);
}

.faq-search-modal__footer span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.faq-search-modal__footer kbd {
  font-family: inherit;
  font-size: 11px;
  padding: 2px 5px;
  border-radius: 3px;
  background-color: var(--faq-border);
  border: 1px solid var(--faq-text-muted);
  color: var(--faq-text-secondary);
}

/* ─── Right TOC sidebar ──────────────────────────────────────────────────── */
.faq-toc__heading {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--faq-text-muted);
  margin: 0 0 12px;
  padding: 0 4px;
}

.faq-toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.faq-toc__item a {
  display: block;
  padding: 4px 8px;
  font-size: 13px;
  color: var(--faq-text-secondary);
  text-decoration: none;
  border-radius: 4px;
  border-left: 2px solid transparent;
  transition: color 0.12s ease, background-color 0.12s ease, border-color 0.12s ease;
  line-height: 1.4;
}

.faq-toc__item a:hover {
  color: var(--faq-text-primary);
  background-color: var(--faq-nav-active-bg);
}

.faq-toc__item a.is-active {
  color: var(--faq-accent);
  border-left-color: var(--faq-accent);
  background-color: var(--faq-nav-active-bg);
}

/* H3 items are indented */
.faq-toc__item--h3 a {
  padding-left: 20px;
  font-size: 12px;
}

@media (max-width: 768px) {
  .faq-search-modal {
    padding-top: 0;
    align-items: flex-end;
  }

  .faq-search-modal__box {
    border-radius: 16px 16px 0 0;
    max-height: 80vh;
  }
}