/* Overlay جستجو — الهام از UI اپل، رنگ سرمه‌ای مایسل */
:root {
  --search-navy: #000037;
  --search-navy-soft: rgba(0, 0, 55, 0.72);
  --search-cyan: #7bdcee;
  --search-panel-bg: rgba(255, 255, 255, 0.97);
  --search-backdrop: rgba(0, 0, 55, 0.52);
}

/* دکمه جستجو در هدر */
.site-header__brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 2rem;
  flex-shrink: 0;
  z-index: 1002;
}

.site-header__search-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--header-fg, var(--search-navy));
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  transition:
    color 0.25s ease,
    transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
    background 0.25s ease;
}

.site-header__search-toggle::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(123, 220, 238, 0.35), transparent 68%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.site-header__search-toggle svg {
  width: 26px;
  height: 26px;
  display: block;
  filter: drop-shadow(0 0 0 transparent);
  transition: filter 0.3s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-header__search-toggle:hover,
.site-header__search-toggle:focus-visible {
  color: var(--search-navy);
  outline: none;
  transform: scale(1.06);
}

.site-header__search-toggle:hover::before,
.site-header__search-toggle:focus-visible::before {
  opacity: 1;
}

.site-header__search-toggle:hover svg,
.site-header__search-toggle:focus-visible svg {
  filter: drop-shadow(0 0 6px rgba(123, 220, 238, 0.65));
}

.site-header__search-toggle[aria-expanded="true"] {
  color: var(--search-cyan);
}

@media (min-width: 1024px) {
  .site-header__brand {
    gap: 2.5rem;
  }

  .site-header__search-toggle {
    width: 52px;
    height: 52px;
  }

  .site-header__search-toggle svg {
    width: 28px;
    height: 28px;
  }
}

@media (max-width: 1023px) {
  .site-header__brand {
    gap: 2rem;
    margin-inline-end: auto;
  }

  .site-header__search-toggle {
    order: 2;
    margin-inline-start: 1.5rem;
  }

  .site-header__logo {
    order: 1;
  }
}

/* Overlay */
.site-search {
  position: fixed;
  inset: 0;
  z-index: 11000;
  pointer-events: none;
  visibility: hidden;
}

.site-search.is-open {
  pointer-events: auto;
  visibility: visible;
}

.site-search__backdrop {
  position: absolute;
  inset: 0;
  background: var(--search-backdrop);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  transition: opacity 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-search.is-open .site-search__backdrop {
  opacity: 1;
}

.site-search__dialog {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(1rem, 4vw, 2.5rem);
  padding-top: clamp(4.5rem, 12vh, 7rem);
  box-sizing: border-box;
}

.site-search__panel {
  width: min(100%, 640px);
  max-height: min(78vh, 720px);
  display: flex;
  flex-direction: column;
  background: var(--search-panel-bg);
  border: 1px solid rgba(0, 0, 55, 0.1);
  border-radius: 20px;
  box-shadow:
    0 28px 80px rgba(0, 0, 55, 0.22),
    0 0 0 1px rgba(123, 220, 238, 0.08) inset;
  overflow: hidden;
  opacity: 0;
  transform: translateY(18px) scale(0.96);
  transition:
    opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-search.is-open .site-search__panel {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.site-search__header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 0.85rem 0.85rem 1rem;
  border-bottom: 1px solid rgba(0, 0, 55, 0.08);
  background: linear-gradient(180deg, rgba(123, 220, 238, 0.06) 0%, transparent 100%);
}

.site-search__field-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
}

.site-search__field-icon {
  display: flex;
  color: var(--search-navy-soft);
  flex-shrink: 0;
}

.site-search__field-icon svg {
  width: 22px;
  height: 22px;
}

.site-search__input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: clamp(1rem, 0.4vw + 0.9rem, 1.15rem);
  font-weight: 500;
  color: var(--search-navy);
  padding: 0.35rem 0;
  outline: none;
}

.site-search__input::placeholder {
  color: rgba(0, 0, 55, 0.45);
  font-weight: 400;
}

.site-search__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 55, 0.06);
  color: var(--search-navy);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s ease, transform 0.25s ease, color 0.2s ease;
}

.site-search__close svg {
  width: 18px;
  height: 18px;
}

.site-search__close:hover,
.site-search__close:focus-visible {
  background: rgba(0, 0, 55, 0.12);
  transform: rotate(90deg);
  outline: none;
}

.site-search__body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0.5rem 0.75rem 0.85rem;
  -webkit-overflow-scrolling: touch;
}

.site-search__hint {
  padding: 0.85rem 0.65rem;
  font-size: 0.92rem;
  color: var(--search-navy-soft);
  text-align: center;
  line-height: 1.5;
}

.site-search__hint[hidden] {
  display: none !important;
}

.site-search__loading:not([hidden]) {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1.25rem;
  font-size: 0.92rem;
  color: var(--search-navy-soft);
}

.site-search__loading[hidden] {
  display: none !important;
}

.site-search__spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(0, 0, 55, 0.15);
  border-top-color: var(--search-navy);
  border-radius: 50%;
  animation: site-search-spin 0.7s linear infinite;
}

@keyframes site-search-spin {
  to {
    transform: rotate(360deg);
  }
}

.site-search__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-search__item {
  margin: 0;
  padding: 0;
  animation: site-search-item-in 0.38s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}

.site-search__item:nth-child(1) { animation-delay: 0.02s; }
.site-search__item:nth-child(2) { animation-delay: 0.05s; }
.site-search__item:nth-child(3) { animation-delay: 0.08s; }
.site-search__item:nth-child(4) { animation-delay: 0.11s; }
.site-search__item:nth-child(5) { animation-delay: 0.14s; }
.site-search__item:nth-child(6) { animation-delay: 0.17s; }
.site-search__item:nth-child(7) { animation-delay: 0.2s; }
.site-search__item:nth-child(8) { animation-delay: 0.23s; }

@keyframes site-search-item-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.site-search__link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 0.75rem;
  margin: 0.15rem 0;
  border-radius: 14px;
  text-decoration: none;
  color: var(--search-navy);
  transition: background 0.22s ease, transform 0.22s ease;
}

.site-search__link:hover,
.site-search__link:focus-visible {
  background: rgba(123, 220, 238, 0.14);
  transform: translateX(-3px);
  outline: none;
}

.site-search__badge {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  background: rgba(0, 0, 55, 0.07);
  color: var(--search-navy-soft);
}

.site-search__badge--page {
  background: rgba(123, 220, 238, 0.22);
  color: var(--search-navy);
}

.site-search__title {
  flex: 1;
  min-width: 0;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.45;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-search__arrow {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: rgba(0, 0, 55, 0.35);
  transition: color 0.2s ease, transform 0.22s ease;
}

.site-search__link:hover .site-search__arrow,
.site-search__link:focus-visible .site-search__arrow {
  color: var(--search-navy);
  transform: translateX(-4px);
}

.site-search__empty {
  padding: 1.5rem 1rem;
  text-align: center;
  font-size: 0.95rem;
  color: var(--search-navy-soft);
  line-height: 1.55;
}

.site-search__empty[hidden] {
  display: none !important;
}

body.site-search-open {
  overflow: hidden;
}

@media (max-width: 1023px) {
  .site-search__dialog {
    padding-top: clamp(3.5rem, 10vh, 5rem);
    padding-inline: 0.75rem;
  }

  .site-search__panel {
    border-radius: 18px;
    max-height: min(82vh, 640px);
  }

  .site-search__link {
    padding: 0.95rem 0.7rem;
  }

  .site-search__title {
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-search__backdrop,
  .site-search__panel,
  .site-search__item,
  .site-search__link,
  .site-search__close,
  .site-header__search-toggle {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
  }

  .site-search__spinner {
    animation: none;
  }
}