/* ═══════════════════════════════════════════════════════════════
   ছাত্রকন্ঠ — Search Overlay
   search.css
═══════════════════════════════════════════════════════════════ */

.ck-search-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(10,10,10,.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--ck-transition-slow);
}
.ck-search-overlay.is-open {
  opacity: 1;
  pointer-events: all;
}

.ck-search-box {
  width: min(700px, 94vw);
  background: #fff;
  border-radius: var(--ck-radius-lg);
  box-shadow: var(--ck-shadow-lg), 0 0 0 1px rgba(0,0,0,.06);
  overflow: hidden;
  transform: translateY(-16px) scale(.97);
  transition: transform var(--ck-transition-slow);
}
.ck-search-overlay.is-open .ck-search-box {
  transform: translateY(0) scale(1);
}

.ck-search-box__head {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--ck-border);
}
.ck-search-box__icon {
  color: var(--ck-ink-muted);
  flex-shrink: 0;
  width: 18px; height: 18px;
}
.ck-search-box__input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1.05rem;
  color: var(--ck-ink);
  background: transparent;
  font-family: var(--ck-font-ui);
}
.ck-search-box__input::placeholder { color: var(--ck-ink-faint); }
.ck-search-box__esc {
  font-size: .68rem;
  color: var(--ck-ink-muted);
  padding: .2rem .5rem;
  border: 1px solid var(--ck-border);
  border-radius: 3px;
  font-family: var(--ck-font-ui);
  letter-spacing: .04em;
  background: var(--ck-paper-warm);
  transition: background var(--ck-transition);
  white-space: nowrap;
}
.ck-search-box__esc:hover { background: var(--ck-paper-mid); }

.ck-search-box__results {
  max-height: 440px;
  overflow-y: auto;
  padding: .35rem 0;
}
.ck-search-box__results::-webkit-scrollbar { width: 3px; }
.ck-search-box__results::-webkit-scrollbar-thumb { background: var(--ck-border-dark); }

.ck-search-result {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  padding: .8rem 1.25rem;
  cursor: pointer;
  transition: background var(--ck-transition);
  border-bottom: 1px solid transparent;
}
.ck-search-result:hover,
.ck-search-result.is-focused {
  background: var(--ck-paper-warm);
}
.ck-search-result__num {
  font-size: .68rem;
  color: var(--ck-accent);
  font-family: var(--ck-font-display);
  font-style: italic;
  min-width: 1.5rem;
  text-align: right;
  padding-top: .1rem;
  flex-shrink: 0;
}
.ck-search-result__body { flex: 1; min-width: 0; }
.ck-search-result__title {
  font-family: var(--ck-font-ui);
  font-size: .92rem;
  font-weight: 500;
  color: var(--ck-ink-soft);
  line-height: 1.45;
}
.ck-search-result__title mark {
  background: #fef08a;
  color: var(--ck-ink);
  border-radius: 2px;
  padding: 0 1px;
}
.ck-search-result__tag {
  font-size: .65rem;
  color: var(--ck-ink-faint);
  margin-top: .2rem;
}
.ck-search-result__arrow {
  color: var(--ck-border-dark);
  flex-shrink: 0;
  padding-top: .15rem;
  transition: color var(--ck-transition), transform var(--ck-transition);
}
.ck-search-result:hover .ck-search-result__arrow,
.ck-search-result.is-focused .ck-search-result__arrow {
  color: var(--ck-accent);
  transform: translateX(3px);
}

.ck-search-box__hint,
.ck-search-box__empty {
  padding: 2.2rem 1.25rem;
  text-align: center;
  font-size: .88rem;
  color: var(--ck-ink-muted);
}
.ck-search-box__hint kbd {
  display: inline-block;
  padding: .1rem .4rem;
  border: 1px solid var(--ck-border);
  border-radius: 3px;
  font-size: .72rem;
  background: var(--ck-paper-warm);
  font-family: var(--ck-font-ui);
}
.ck-search-box__footer {
  padding: .6rem 1.25rem;
  border-top: 1px solid var(--ck-border);
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--ck-paper-warm);
}
.ck-search-box__footer-tip {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-size: .67rem;
  color: var(--ck-ink-faint);
  font-family: var(--ck-font-ui);
}
.ck-search-box__footer-tip kbd {
  padding: .05rem .35rem;
  border: 1px solid var(--ck-border);
  border-radius: 2px;
  font-size: .65rem;
  background: #fff;
}