/* ==========================================================
   Static Full-Text Search Modal & Tooltip (Pagefind)
   Deferred / Loaded on Demand
   ========================================================== */

/* ---------- Nav Search Button ---------- */
.nav-search-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  color: var(--text-soft);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.nav-search-btn:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--bg-subtle);
}

.nav-search-icon {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.nav-search-kbd {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-faint);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 4px;
  line-height: 1.2;
}

/* ---------- Search Modal (Pagefind) ---------- */
.search-modal {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  padding: 0;
  border: none;
  background: transparent;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: clamp(40px, 12vh, 120px);
  z-index: 1500;
}

.search-modal:not([open]) {
  display: none;
}

.search-modal::backdrop {
  background: rgba(15, 23, 42, 0.45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  animation: modalFadeIn 0.18s ease-out;
}

[data-theme="dark"] .search-modal::backdrop {
  background: rgba(0, 0, 0, 0.7);
}

.search-modal-box {
  width: min(620px, calc(100vw - 32px));
  max-height: min(560px, calc(100vh - 160px));
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-popover);
  overflow: hidden;
  animation: modalSlideDown 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalSlideDown {
  from {
    opacity: 0;
    transform: translateY(-12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.search-modal-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-icon {
  position: absolute;
  left: 12px;
  color: var(--text-faint);
  font-size: 1.1rem;
  pointer-events: none;
}

.search-modal-input {
  width: 100%;
  height: 42px;
  padding: 0 54px 0 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 0.98rem;
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.search-modal-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-modal-input::placeholder {
  color: var(--text-faint);
  font-size: 0.9rem;
}

.search-esc-btn {
  position: absolute;
  right: 10px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-faint);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.search-esc-btn:hover {
  color: var(--text);
  background: var(--bg-subtle-hover);
}

.search-modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  min-height: 120px;
  overscroll-behavior: contain;
}

.search-hint,
.search-empty {
  padding: 36px 16px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-faint);
}

.search-empty strong {
  color: var(--text);
}

.search-result-item {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius);
  text-decoration: none !important;
  color: inherit;
  transition: background-color 0.12s ease;
  margin-bottom: 2px;
}

.search-result-item:hover,
.search-result-item.active {
  background: var(--bg-subtle);
}

.search-result-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.search-result-tag {
  font-size: 0.68rem;
  font-family: var(--font-ui);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
}

.search-result-tag.publication {
  background: rgba(0, 102, 204, 0.12);
  color: #0066CC;
}

.search-result-tag.talk {
  background: rgba(124, 58, 237, 0.12);
  color: #7C3AED;
}

.search-result-tag.blog {
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
}

.search-result-tag.page {
  background: var(--bg-subtle);
  color: var(--text-soft);
}

[data-theme="dark"] .search-result-tag.publication {
  background: rgba(41, 151, 255, 0.2);
  color: #2997FF;
}

[data-theme="dark"] .search-result-tag.talk {
  background: rgba(167, 139, 250, 0.2);
  color: #C4B5FD;
}

[data-theme="dark"] .search-result-tag.blog {
  background: rgba(52, 211, 153, 0.2);
  color: #6EE7B7;
}

[data-theme="dark"] .search-result-tag.page {
  background: var(--bg-subtle);
  color: var(--text-soft);
}

.search-result-title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--accent-strong);
}

.search-result-excerpt {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-soft);
  line-height: 1.45;
}

.search-result-excerpt mark {
  background: var(--featured-badge-bg);
  color: var(--featured-badge-text);
  font-weight: 600;
  border-radius: 2px;
  padding: 0 2px;
}

/* ---------- Floating UI Tooltip ---------- */
.floating-tooltip {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2000;
  pointer-events: none;
  background: var(--text);
  color: var(--bg);
  padding: 5px 9px;
  font-family: var(--font-ui);
  font-size: 0.76rem;
  font-weight: 500;
  line-height: 1.2;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.15s ease, transform 0.15s ease;
  white-space: nowrap;
}

.floating-tooltip.visible {
  opacity: 1;
  transform: scale(1);
}

.floating-tooltip-arrow {
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--text);
  transform: rotate(45deg);
}

/* Mobile responsive for search */
@media (max-width: 680px) {
  .nav-search-text,
  .nav-search-kbd {
    display: none;
  }

  .nav-search-btn {
    padding: 0;
    width: 36px;
    height: 36px;
    justify-content: center;
  }

  .search-modal-box {
    width: calc(100vw - 20px);
    max-height: calc(100vh - 80px);
  }
}