/**
 * 搜尋：表單、選單搜尋按鈕、搜尋浮層、搜尋結果頁
 *
 * @package Yafun2027
 */

/* ==========================================================================
   搜尋表單（共用）
   ========================================================================== */

.yf-search-form {
  display: flex;
  align-items: center;
  gap: 0;
  width: 100%;
  border: 1px solid #d6d1c2;
  border-radius: 999px;
  background: #fff;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.yf-search-form:focus-within {
  border-color: var(--color-leaf);
  box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.18);
}

.yf-search-input {
  flex: 1 1 auto;
  min-width: 0;
  height: 5.2rem;
  padding: 0 2rem;
  border: 0;
  background: transparent;
  color: var(--color-ink);
  font-family: var(--font-serif);
  font-size: 1.7rem;
  -webkit-appearance: none;
  appearance: none;
}

.yf-search-input:focus {
  outline: none;
}

.yf-search-input::placeholder {
  color: #9aa597;
}

.yf-search-submit {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  height: 4.4rem;
  margin-right: 0.4rem;
  padding: 0 1.8rem;
  border: 0;
  border-radius: 999px;
  background: var(--color-leaf);
  color: #fff;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
}

.yf-search-submit:hover,
.yf-search-submit:focus-visible {
  background: #3d6a4b;
}
/* ==========================================================================
   選單中的搜尋
   ========================================================================== */

#site-navigation ul li.yf-menu-search {
  vertical-align: middle;
}

.yf-search-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.8rem;
  height: 3.8rem;
  margin: -0.8rem 0;
  padding: 0;
  border: 1px solid rgba(240, 236, 226, 0.35);
  border-radius: 50%;
  background: transparent;
  color: var(--on-dark);
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}

.yf-search-toggle:hover,
.yf-search-toggle:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

.yf-search-toggle--mobile {
  display: none;
}

/* 手機／平板：搜尋按鈕移到選單外，與「選單」按鈕並排 */
@media only screen and (max-width: 960px) {
  #site-navigation ul li.yf-menu-search {
    display: none;
  }

  #site-navigation {
    display: flex;
    align-items: center;
    gap: 0.8rem;
  }

  .yf-search-toggle--mobile {
    order: -1;
    display: inline-flex;
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    margin: 0;
  }

  .yf-search-overlay {
    padding: calc(2rem + env(safe-area-inset-top, 0px)) 1.6rem 2rem;
    background: rgba(17, 25, 20, 0.96);
  }

  .yf-search-overlay-inner {
    padding-top: 4.4rem;
  }

  .yf-search-close {
    top: 0;
  }

  .yf-search-overlay .yf-search-input {
    height: 5.6rem;
    font-size: 1.7rem;
  }

  .yf-search-overlay .yf-search-submit {
    height: 4.6rem;
  }
}
/* ==========================================================================
   搜尋浮層
   ========================================================================== */

.yf-search-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 16vh 2rem 2rem;
  background: rgba(15, 22, 18, 0.72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.25s;
}

/* 自訂 display: flex 會蓋過 hidden 屬性，需明確隱藏，否則透明浮層會擋住整頁點擊 */
.yf-search-overlay[hidden] {
  display: none;
}

.yf-search-overlay.is-visible {
  opacity: 1;
}

.yf-search-open,
.yf-search-open body {
  overflow: hidden;
}

.yf-search-overlay-inner {
  position: relative;
  width: min(72rem, 100%);
  transform: translateY(-12px);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.yf-search-overlay.is-visible .yf-search-overlay-inner {
  transform: none;
}

.yf-search-overlay-label {
  margin: 0 0 1rem 2rem;
  font-family: var(--font-pen);
  font-size: 2.6rem;
  font-weight: 500;
  color: #f1e3c4;
  transform: rotate(-1.5deg);
  transform-origin: left;
}

.yf-search-overlay .yf-search-form {
  border: 0;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.yf-search-overlay .yf-search-input {
  height: 6.4rem;
  font-size: 2rem;
}

.yf-search-overlay .yf-search-submit {
  height: 5.2rem;
  margin-right: 0.6rem;
}

/* 關閉鈕：z-index 高於旋轉過的「Search」標籤（transform 會蓋住先前的定位元素而攔截點擊） */
.yf-search-close {
  position: absolute;
  top: -0.6rem;
  right: 0;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.8rem;
  height: 4.8rem;
  padding: 0;
  border: 1px solid rgba(240, 236, 226, 0.35);
  border-radius: 50%;
  background: rgba(240, 236, 226, 0.08);
  color: var(--on-dark);
  font-family: Arial, sans-serif;
  font-size: 2.8rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s, transform 0.2s;
}

.yf-search-close:hover,
.yf-search-close:focus-visible {
  background: var(--on-dark);
  border-color: var(--on-dark);
  color: var(--forest-900);
  transform: rotate(90deg);
  outline: none;
}

.yf-search-hot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 2.4rem;
  padding: 0 1rem;
  font-size: 1.7rem;
}

.yf-search-hot span {
  margin-right: 0.4rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.1em;
}

.yf-search-hot a {
  padding: 0.45em 1.1em;
  min-height: 4.4rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #f0ece2;
  text-decoration: none;
  transition: background-color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}

.yf-search-hot .yf-search-hot-count {
  margin: 0;
  padding: 0 0.5em;
  border-radius: 999px;
  background: rgba(240, 236, 226, 0.12);
  color: var(--on-dark-muted);
  font-size: 1.3rem;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.yf-search-hot a:hover .yf-search-hot-count,
.yf-search-hot a:focus-visible .yf-search-hot-count {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.yf-search-hot a:hover,
.yf-search-hot a:focus-visible {
  background: var(--color-leaf);
  color: #fff;
  text-decoration: none;
}
/* ==========================================================================
   搜尋結果頁
   ========================================================================== */

.yf-search-hero {
  min-height: 0;
  background:
    radial-gradient(ellipse at 85% 0%, rgba(74, 124, 89, 0.45), transparent 60%),
    radial-gradient(ellipse at 0% 100%, rgba(47, 93, 124, 0.4), transparent 55%),
    var(--color-ink);
}

.yf-search-hero .page-title {
  word-break: break-all;
}

.yf-search-hero-form {
  max-width: 60rem;
  margin-top: 2.4rem;
}

.yf-search-hero .yf-search-form {
  border: 0;
}

.search .site-content {
  padding-top: 0;
}

/* 關鍵字標示 */
mark.yf-mark {
  padding: 0 0.1em;
  border-radius: 3px;
  background: linear-gradient(transparent 55%, rgba(201, 169, 110, 0.55) 55%);
  color: inherit;
}

/* 無結果 */
.yf-search-empty {
  padding: 6rem 8% 8rem;
  background: var(--color-paper);
}

.yf-search-empty-lead {
  margin: 0 0 4rem;
  font-family: var(--font-kai);
  font-size: 2.2rem;
  line-height: 1.8;
  color: var(--color-ink);
}

.yf-search-empty h2 {
  margin: 3rem 0 1.4rem;
  font-size: 1.6rem;
  letter-spacing: 0.15em;
  color: var(--color-muted);
}

.yf-term-nav--plain {
  padding: 0;
  background: transparent;
  border: 0;
}

@media (max-width: 767px) {
  .yf-search-submit-text {
    display: none;
  }

  /* 只剩圖示時維持正圓：寬度跟著高度（浮層中的按鈕較高） */
  .yf-search-submit {
    flex: none;
    aspect-ratio: 1;
    width: auto;
    padding: 0;
    justify-content: center;
  }

  .yf-term-nav--plain ul {
    flex-wrap: wrap;
    overflow: visible;
    padding: 0;
  }

  .yf-search-empty {
    padding: 4rem 2rem 6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .yf-search-overlay,
  .yf-search-overlay-inner,
  .yf-search-form {
    transition: none;
  }
}
/* ==========================================================================
   搜尋結果：一般文章列表
   ========================================================================== */

.yf-search-list {
  max-width: 96rem;
  margin: 0 auto;
  padding: 3rem max(2rem, env(safe-area-inset-left, 0px)) 4rem;
  list-style: none;
  background: #fff;
}

.search .content-area {
  background: #fff;
}

.yf-search-item {
  border-bottom: 1px solid #e9e5da;
}

.yf-search-item:last-child {
  border-bottom: 0;
}

.yf-search-item-link {
  display: grid;
  grid-template-columns: 18rem minmax(0, 1fr);
  gap: 2.8rem;
  align-items: start;
  padding: 2.8rem 0;
  color: inherit;
  text-decoration: none;
}

.yf-search-item-link:hover,
.yf-search-item-link:focus-visible {
  text-decoration: none;
}

.yf-search-item-thumb {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 6px;
  background: var(--color-paper);
}

.yf-search-item-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.yf-search-item-link:hover .yf-search-item-thumb img {
  transform: scale(1.05);
}

.yf-search-item-body {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-width: 0;
}

.yf-search-item-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.3rem;
  color: var(--color-muted);
}

.yf-search-item-cat {
  font-family: var(--font-kai);
  padding: 0.1em 0.8em;
  border: 1px solid var(--color-leaf);
  border-radius: 999px;
  color: var(--color-leaf);
}

.yf-search-item-meta time {
  font-family: var(--font-pen);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--color-ocean);
}

.yf-search-item-title {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-ink);
  text-wrap: balance;
  transition: color 0.2s;
}

.yf-search-item-link:hover .yf-search-item-title,
.yf-search-item-link:focus-visible .yf-search-item-title {
  color: var(--color-leaf);
}

.yf-search-item-excerpt {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  font-size: 1.6rem;
  line-height: 1.85;
  color: var(--color-muted);
}

@media (max-width: 600px) {
  .yf-search-item-link {
    grid-template-columns: 9.6rem minmax(0, 1fr);
    gap: 1.6rem;
    padding: 2rem 0;
  }

  .yf-search-item-title {
    font-size: 1.8rem;
  }

  .yf-search-item-excerpt {
    -webkit-line-clamp: 2;
    font-size: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .yf-search-item-thumb img,
  .yf-search-item-title {
    transition: none;
  }

  .yf-search-item-link:hover .yf-search-item-thumb img {
    transform: none;
  }
}