/* ============================================
   SEARCH OVERLAY
   ============================================ */

/* ── Trigger Button ── */

.header__search-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  flex-shrink: 0;
}

.header__search-trigger:hover {
  color: var(--color-navy);
  background-color: var(--gray-50);
}

.header__search-trigger:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

/* ── Header Actions (search + hamburger) ── */

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

/* ── Overlay ── */

.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
}

.search-overlay[hidden] {
  display: none;
}

.search-overlay__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.search-overlay__panel {
  position: relative;
  width: 100%;
  max-width: 640px;
  max-height: 70vh;
  background-color: #FFFFFF;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  margin: 0 var(--space-4);
  animation: search-enter 200ms ease;
}

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

/* ── Input Area ── */

.search-overlay__header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.search-overlay__input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.search-overlay__icon {
  flex-shrink: 0;
  color: var(--color-text-muted);
}

.search-overlay__input {
  flex: 1;
  border: none;
  outline: none;
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  background: transparent;
  font-family: var(--font-sans);
}

.search-overlay__input::placeholder {
  color: var(--color-text-muted);
  font-weight: var(--weight-regular);
}

.search-overlay__kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  background-color: var(--gray-100);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  line-height: 1;
}

/* ── Results ── */

.search-overlay__results {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-5);
}

.search-overlay__empty {
  text-align: center;
  padding: var(--space-10) 0;
}

.search-overlay__empty-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.search-overlay__group {
  margin-bottom: var(--space-6);
}

.search-overlay__group:last-child {
  margin-bottom: 0;
}

.search-overlay__group-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-light);
}

.search-overlay__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
  text-decoration: none;
  color: inherit;
}

.search-overlay__item:hover,
.search-overlay__item--focused {
  background-color: var(--gray-50);
}

.search-overlay__item-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background-color: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.search-overlay__item-icon svg {
  width: 16px;
  height: 16px;
}

.search-overlay__item-info {
  flex: 1;
  min-width: 0;
}

.search-overlay__item-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-navy);
  margin-bottom: 2px;
}

.search-overlay__item-title mark {
  background-color: rgba(0, 155, 222, 0.15);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

.search-overlay__item-meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-overlay__no-results {
  text-align: center;
  padding: var(--space-10) 0;
}

.search-overlay__no-results-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ── Footer Hint ── */

.search-overlay__footer {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.search-overlay__footer kbd {
  display: inline-flex;
  align-items: center;
  padding: 1px 5px;
  font-size: 11px;
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  background-color: var(--gray-100);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-family: var(--font-sans);
  line-height: 1.4;
}

/* ── Mobile ── */

@media (max-width: 640px) {
  .search-overlay {
    padding-top: 0;
    align-items: stretch;
  }

  .search-overlay__panel {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
    margin: 0;
  }

  .search-overlay__kbd {
    display: none;
  }
}

/* ── Reduced Motion ── */

@media (prefers-reduced-motion: reduce) {
  .search-overlay__panel {
    animation: none;
  }
}