/* ==================================================================
   頁首 / 頁尾 / 搜尋介面
   ================================================================== */

.site-header .site-header__inner {
  display: grid;
  grid-template-columns: auto 1fr minmax(11rem, 15rem) auto;
  align-items: center;
  gap: 1rem 1.5rem;
}

.site-logo {
  display: inline-grid;
  line-height: 0.9;
  text-decoration: none;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.site-logo__student {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.site-logo__blog {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
}

.site-search {
  display: flex;
  align-items: stretch;
  min-width: 0;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-raised);
  overflow: hidden;
}

.site-search:focus-within {
  border-color: var(--accent);
}

.site-search__input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.88rem;
  padding: 0.5rem 0.8rem;
}

.site-search__input::placeholder {
  color: var(--ink-faint);
}

.site-search__button {
  border: 0;
  border-left: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-soft);
  padding: 0 0.8rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
}

.site-search__button:hover {
  color: var(--accent);
}

/* ---------- 頁尾 ---------- */
.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 2.5rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: end;
}

.site-footer__title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.site-footer__name,
.site-footer__email,
.site-footer__copy,
.site-footer__feed {
  margin: 0;
}

.site-footer__email {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.site-footer__muted {
  color: var(--ink-faint);
}

.site-footer__meta {
  display: grid;
  justify-items: end;
  gap: 0.5rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

/* ---------- 搜尋結果 ---------- */
.search-page__form {
  display: flex;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  overflow: hidden;
  background: var(--paper-raised);
}

.search-page__input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  padding: 0.75rem 1rem;
}

.search-page__button {
  border: 0;
  border-left: 1px solid var(--rule);
  background: transparent;
  color: var(--ink);
  padding-inline: 1rem;
  cursor: pointer;
  font-family: inherit;
}

.search-summary {
  text-align: center;
  color: var(--ink-soft);
  margin-bottom: 2rem;
}

.search-results {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.search-result {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1.5rem;
}

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

.search-result__title {
  margin: 0 0 0.5rem;
  font-size: 1.3rem;
}

.search-result__title a {
  text-decoration: none;
}

.search-result__desc,
.search-result__meta {
  margin: 0;
}

.search-result__desc {
  color: var(--ink-soft);
}

.search-result__meta {
  margin-top: 0.5rem;
  color: var(--ink-faint);
  font-size: 0.82rem;
}

@media (max-width: 58rem) {
  .site-header .site-header__inner {
    grid-template-columns: auto 1fr auto;
  }

  .site-nav {
    justify-self: end;
  }

  .site-search {
    grid-column: 1 / -1;
    width: 100%;
  }
}

@media (max-width: 40rem) {
  .site-header .site-header__inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    grid-column: 1 / -1;
    justify-self: start;
    width: 100%;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__meta {
    justify-items: start;
  }
}