/*
Theme Name: Lairspace
Theme URI: https://lairspace.com
Author: will
Description: lairspace.com 自訂主題 — 深空 + 琥珀訊號色系,科技新聞版型。設定全部寫死在檔案內,無需後台 Customizer。
Version: 1.3.0
Requires at least: 6.0
Requires PHP: 7.4
License: Proprietary
Text Domain: lairspace
*/
/* v1.3.0: 修正嚴重版面 bug ——分類標籤(<a>)巢狀在卡片/pinned 連結(<a>)裡面,
   HTML 不允許 <a> 包 <a>,瀏覽器會自動拆散 DOM 導致版面錯亂。改成卡片內用不可點擊的 <span>。
   加入 GA4 gtag.js(見 functions.php 的 LAIRSPACE_GA4_ID 常數)。 */
/* v1.2.0: 修正 pipeline 把封面圖同時插入內文又設 featured image 導致的重複顯示問題;
   摘要改用 lairspace_smart_excerpt(),避免抓到內文重複標題的段落 */
/* v1.1.1: 修正 CSS 版本號寫死導致快取不更新的問題(改用 filemtime 自動 cache-busting);
   修正無圖 fallback 樣式沒套用到 pinned 區塊的問題 */
/* v1.1.0: 加入 favicon(assets/),分類為空時 nav/footer 不再顯示「沒有分類」 */

:root {
  --ls-void:        #06070d;
  --ls-cosmos:      #0c0e1a;
  --ls-nebula:      #161a2d;
  --ls-orbit:       #232841;
  --ls-dust:        #3a4163;

  --ls-star:        #f4f6fb;
  --ls-moon:        #c7ccdb;
  --ls-meteor:      #8a91a8;
  --ls-comet:       #5b6280;

  --ls-signal:      #f5b269;
  --ls-signal-hot:  #ffc98a;
  --ls-signal-deep: #b97c3c;

  --ls-aurora:      #7aa2ff;
  --ls-aurora-soft: #a8c0ff;

  --ls-tag-ai:      #a78bff;
  --ls-tag-tech:    #7aa2ff;
  --ls-tag-biz:     #6ed3a5;
  --ls-tag-deep:    #f5b269;

  --ls-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ls-font-sans: "Inter", "Noto Sans TC", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  --ls-s-1: 4px; --ls-s-2: 8px; --ls-s-3: 12px; --ls-s-4: 16px;
  --ls-s-5: 24px; --ls-s-6: 32px; --ls-s-7: 48px; --ls-s-8: 72px; --ls-s-9: 112px;

  --ls-r-sm: 4px; --ls-r-md: 8px; --ls-r-lg: 14px; --ls-r-xl: 22px;

  --ls-glow-signal: 0 0 24px rgba(245, 178, 105, 0.30);
  --ls-glow-soft:   0 8px 40px rgba(0, 0, 0, 0.5);
  --ls-hairline:    1px solid var(--ls-orbit);
}

* { box-sizing: border-box; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}

html { background: var(--ls-void); }
body {
  margin: 0;
  font-family: var(--ls-font-sans);
  color: var(--ls-star);
  background:
    radial-gradient(1px 1px at 12% 18%, rgba(255,255,255,0.6) 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 12%, rgba(255,255,255,0.5) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 42% 8%, rgba(255,255,255,0.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 88% 34%, rgba(255,255,255,0.4) 50%, transparent 51%),
    radial-gradient(1px 1px at 22% 42%, rgba(255,255,255,0.4) 50%, transparent 51%),
    radial-gradient(1px 1px at 62% 62%, rgba(255,255,255,0.35) 50%, transparent 51%),
    radial-gradient(1px 1px at 6%  72%, rgba(255,255,255,0.3) 50%, transparent 51%),
    radial-gradient(1px 1px at 52% 86%, rgba(255,255,255,0.3) 50%, transparent 51%),
    var(--ls-void);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--ls-signal); outline-offset: 2px; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 var(--ls-s-5); }
.wrap-narrow { max-width: 760px; margin: 0 auto; padding: 0 var(--ls-s-5); }

/* ---------- Header ---------- */
header.site {
  border-bottom: var(--ls-hairline);
  background: rgba(6,7,13,0.7);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 20;
}
.site-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--ls-s-4) 0;
}
.brand { display: flex; align-items: center; gap: var(--ls-s-3); }
.brand svg { display: block; }
.brand .wordmark {
  font-family: var(--ls-font-mono);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ls-star);
}
nav.primary { display: flex; gap: var(--ls-s-5); flex-wrap: wrap; }
nav.primary ul { list-style: none; display: flex; gap: var(--ls-s-5); margin: 0; padding: 0; flex-wrap: wrap; }
nav.primary a {
  font-family: var(--ls-font-mono);
  font-size: 12.5px;
  color: var(--ls-moon);
  letter-spacing: 0.02em;
  transition: color .15s ease;
}
nav.primary a:hover, nav.primary a:focus-visible { color: var(--ls-signal-hot); }
nav.primary .current-cat a { color: var(--ls-signal); }

/* ---------- Hero / pinned ---------- */
.pinned {
  margin-top: var(--ls-s-7);
  border: var(--ls-hairline);
  border-left: 3px solid var(--ls-signal);
  border-radius: var(--ls-r-lg);
  background: var(--ls-cosmos);
  padding: var(--ls-s-6);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--ls-s-6);
  align-items: center;
}
.pinned .thumb {
  aspect-ratio: 16/10;
  border-radius: var(--ls-r-md);
  overflow: hidden;
  border: var(--ls-hairline);
}
.pinned .thumb img { width: 100%; height: 100%; object-fit: cover; }
.eyebrow {
  font-family: var(--ls-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ls-meteor);
  text-transform: uppercase;
  margin-bottom: var(--ls-s-3);
}
.pinned h1, .pinned h2.pinned-title {
  font-size: 28px;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin: 12px 0 var(--ls-s-3);
}
.pinned p.lede {
  color: var(--ls-moon);
  font-size: 14.5px;
  line-height: 1.6;
  margin: 0 0 var(--ls-s-4);
}
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--ls-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.03em;
  border: 1px solid currentColor;
}
.tag.ai   { color: var(--ls-tag-ai); }
.tag.tech { color: var(--ls-tag-tech); }
.tag.biz  { color: var(--ls-tag-biz); }
.tag.deep { color: var(--ls-tag-deep); }

.meta {
  display: flex; align-items: center; gap: var(--ls-s-3);
  font-family: var(--ls-font-mono);
  font-size: 12px;
  color: var(--ls-meteor);
  margin-top: var(--ls-s-4);
  flex-wrap: wrap;
}
.avatar {
  width: 22px; height: 22px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--ls-font-mono); font-size: 10px; font-weight: 700;
  flex: none;
}
.avatar.c-ai   { color: #1a1408; background: radial-gradient(circle at 30% 30%, #c9b8ff, #6a4fcf 75%); }
.avatar.c-tech { color: #0a0e1f; background: radial-gradient(circle at 30% 30%, #a8c0ff, #4a5a99 75%); }
.avatar.c-biz  { color: #06140d; background: radial-gradient(circle at 30% 30%, #a8e8cc, #2f7d5a 75%); }
.avatar.c-deep { color: #1a1408; background: radial-gradient(circle at 30% 30%, #ffc98a, #b97c3c 75%); }

/* ---------- Section header ---------- */
.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin: var(--ls-s-8) 0 var(--ls-s-5);
  flex-wrap: wrap; gap: var(--ls-s-3);
}
.section-head .label {
  font-family: var(--ls-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ls-meteor);
}
.section-head .label::before { content: "// "; color: var(--ls-dust); }
.section-head a.all { font-family: var(--ls-font-mono); font-size: 12px; color: var(--ls-moon); }

/* ---------- Grid & cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--ls-s-5);
}
.card {
  border: var(--ls-hairline);
  border-radius: var(--ls-r-lg);
  background: var(--ls-cosmos);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover, .card:focus-visible { border-color: var(--ls-dust); transform: translateY(-2px); }
.card .thumb { aspect-ratio: 16/10; border-bottom: var(--ls-hairline); }
.card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.card .thumb.noimg, .pinned .thumb.noimg { background: var(--ls-cosmos); display: flex; align-items: center; justify-content: center; }
.card .thumb.noimg svg, .pinned .thumb.noimg svg { opacity: 0.32; }
.card .thumb.noimg.ai,   .pinned .thumb.noimg.ai   { color: var(--ls-tag-ai); }
.card .thumb.noimg.tech, .pinned .thumb.noimg.tech { color: var(--ls-tag-tech); }
.card .thumb.noimg.biz,  .pinned .thumb.noimg.biz  { color: var(--ls-tag-biz); }
.card .thumb.noimg.deep, .pinned .thumb.noimg.deep { color: var(--ls-tag-deep); }
.card .body { padding: var(--ls-s-4); display: flex; flex-direction: column; gap: var(--ls-s-3); flex: 1; }
.card h3 { font-size: 15.5px; line-height: 1.4; letter-spacing: -0.01em; margin: 0; font-weight: 600; }
.card .meta { margin-top: auto; font-size: 11px; }
.card .avatar { width: 18px; height: 18px; font-size: 9px; }
.card .noimg-flag { margin-left: auto; opacity: .6; }

/* ---------- Subscribe strip ---------- */
.subscribe {
  margin: var(--ls-s-9) 0 var(--ls-s-7);
  border: var(--ls-hairline);
  border-radius: var(--ls-r-lg);
  padding: var(--ls-s-6);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--ls-s-5); flex-wrap: wrap;
  background: radial-gradient(60% 120% at 90% 0%, rgba(245,178,105,0.08), transparent 60%), var(--ls-cosmos);
}
.subscribe h4 { margin: 0 0 4px; font-size: 16px; }
.subscribe p { margin: 0; color: var(--ls-meteor); font-size: 13px; }
.btn {
  font-family: var(--ls-font-mono); font-size: 13px; padding: 10px 18px;
  border-radius: var(--ls-r-md); background: var(--ls-signal); color: #1a1408;
  border: none; white-space: nowrap; cursor: pointer;
}

/* ---------- Category / archive hero ---------- */
.cat-hero {
  margin-top: var(--ls-s-7);
  padding-bottom: var(--ls-s-6);
  border-bottom: var(--ls-hairline);
}
.cat-hero .eyebrow { margin-bottom: var(--ls-s-2); }
.cat-hero h1 { font-size: 30px; margin: 0 0 var(--ls-s-2); letter-spacing: -0.015em; }
.cat-hero p { color: var(--ls-meteor); font-size: 14px; margin: 0; max-width: 640px; }
.cat-list { display: flex; flex-direction: column; gap: var(--ls-s-4); margin: var(--ls-s-6) 0; }
.cat-row {
  display: grid; grid-template-columns: 90px 1fr auto; gap: var(--ls-s-4); align-items: center;
  padding: var(--ls-s-4) 0; border-bottom: var(--ls-hairline);
}
.cat-row .idx { font-family: var(--ls-font-mono); font-size: 12px; color: var(--ls-dust); }
.cat-row h3 { font-size: 15px; margin: 0; font-weight: 600; }
.cat-row .d { font-family: var(--ls-font-mono); font-size: 11.5px; color: var(--ls-meteor); }

/* ---------- Pagination ---------- */
.pagination { display: flex; justify-content: space-between; margin: var(--ls-s-7) 0; font-family: var(--ls-font-mono); font-size: 13px; }
.pagination a { color: var(--ls-moon); border: var(--ls-hairline); padding: 8px 14px; border-radius: var(--ls-r-md); }
.pagination a:hover { border-color: var(--ls-signal); color: var(--ls-signal-hot); }

/* ---------- Single article ---------- */
.single-head { margin-top: var(--ls-s-7); }
.single-head h1 { font-size: 32px; line-height: 1.3; letter-spacing: -0.015em; margin: var(--ls-s-3) 0; }
.single-cover { aspect-ratio: 21/9; border-radius: var(--ls-r-lg); overflow: hidden; border: var(--ls-hairline); margin: var(--ls-s-6) 0; }
.single-cover img { width: 100%; height: 100%; object-fit: cover; }
.single-cover.noimg { display: flex; align-items: center; justify-content: center; background: var(--ls-cosmos); }
.single-cover.noimg svg { width: 90px; height: 90px; opacity: 0.28; }

.entry-content { font-size: 16px; line-height: 1.75; color: var(--ls-moon); }
.entry-content h2 { color: var(--ls-star); font-size: 22px; margin: var(--ls-s-7) 0 var(--ls-s-3); letter-spacing: -0.01em; }
.entry-content h3 { color: var(--ls-star); font-size: 18px; margin: var(--ls-s-6) 0 var(--ls-s-2); }
.entry-content p { margin: 0 0 var(--ls-s-4); }
.entry-content ul, .entry-content ol { margin: 0 0 var(--ls-s-4); padding-left: 1.3em; }
.entry-content li { margin-bottom: var(--ls-s-2); }
.entry-content a { color: var(--ls-signal); text-decoration: underline; text-underline-offset: 2px; }
.entry-content img { border-radius: var(--ls-r-md); margin: var(--ls-s-5) 0; }

.author-bio {
  display: flex; align-items: center; gap: var(--ls-s-4);
  margin: var(--ls-s-8) 0; padding: var(--ls-s-5);
  border: var(--ls-hairline); border-radius: var(--ls-r-lg); background: var(--ls-cosmos);
}
.author-bio .avatar { width: 44px; height: 44px; font-size: 17px; }
.author-bio .name { font-weight: 600; font-size: 14px; }
.author-bio .role { font-family: var(--ls-font-mono); font-size: 11.5px; color: var(--ls-meteor); margin-top: 2px; }

.related { margin: var(--ls-s-8) 0; }

/* ---------- Footer ---------- */
footer.site { border-top: var(--ls-hairline); margin-top: var(--ls-s-7); padding: var(--ls-s-6) 0 var(--ls-s-8); }
.footer-row {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--ls-font-mono); font-size: 11.5px; color: var(--ls-comet);
  flex-wrap: wrap; gap: var(--ls-s-3);
}
.footer-links { display: flex; gap: var(--ls-s-4); list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.footer-links a { color: var(--ls-meteor); }

@media (max-width: 860px) {
  .pinned { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  nav.primary { display: none; }
  .cat-row { grid-template-columns: 50px 1fr; }
  .cat-row .d { grid-column: 2; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .single-head h1 { font-size: 26px; }
}