/* ===== UAP ARCHIVE — 星辰午夜 Design System ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700&family=Noto+Serif+TC:wght@400;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ===== Theme Variables ===== */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2332;
  --text-primary: #e8edf2;
  --text-secondary: #8899aa;
  --text-muted: #5a6a7a;
  --accent-primary: #00e5ff;
  --accent-secondary: #7c3aed;
  --accent-warm: #f59e0b;
  --accent-danger: #ef4444;
  --glass-bg: rgba(17, 24, 39, 0.65);
  --glass-border: rgba(0, 229, 255, 0.12);
  --glass-blur: 12px;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 30px rgba(0,229,255,0.15);
  --font-display: 'Noto Serif TC', 'Times New Roman', serif;
  --font-body: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #f0f4f8;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e2e8f0;
  --text-primary: #1a2332;
  --text-secondary: #4a5568;
  --text-muted: #8899aa;
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(0, 180, 216, 0.15);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-glow: 0 0 30px rgba(0,180,216,0.1);
}

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg-primary);
  color:var(--text-primary);
  line-height:1.7;
  min-height:100vh;
  transition:background var(--transition),color var(--transition);
}
a{color:var(--accent-primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-secondary)}
img,video{max-width:100%;height:auto}

/* ===== Scroll Progress Bar ===== */
.progress-bar{
  position:fixed;top:0;left:0;height:3px;
  background:linear-gradient(90deg,var(--accent-primary),var(--accent-secondary));
  z-index:10000;
  width:0;
  transition:width 0.1s linear;
}

/* ===== Starfield Canvas ===== */
#starfield{
  position:fixed;top:0;left:0;width:100%;height:100%;
  z-index:-1;pointer-events:none;opacity:0.8;
}
[data-theme="light"] #starfield{opacity:0.25}

/* ===== Navigation ===== */
.nav-bar{
  position:sticky;top:0;z-index:1000;
  display:flex;align-items:center;justify-content:space-between;
  padding:0.8rem 2rem;
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  border-bottom:1px solid var(--glass-border);
  transition:background var(--transition);
}
.nav-logo{
  font-family:var(--font-display);
  font-size:1.3rem;font-weight:700;
  color:var(--accent-primary);
  letter-spacing:0.08em;
  display:flex;align-items:center;gap:0.5rem;
}
.nav-logo::before{content:'◈';font-size:1rem}
.nav-links{display:flex;gap:0.3rem;align-items:center}
.nav-links a{
  padding:0.4rem 1rem;border-radius:20px;
  font-size:0.85rem;font-weight:500;
  color:var(--text-secondary);
  transition:all var(--transition);
}
.nav-links a:hover,.nav-links a.active{
  color:var(--accent-primary);
  background:rgba(0,229,255,0.08);
}
.nav-links a.active{font-weight:700;color:var(--accent-primary)}

.theme-btn{
  background:none;border:1px solid var(--glass-border);
  color:var(--text-primary);font-size:1.1rem;
  cursor:pointer;width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  transition:all var(--transition);margin-left:0.5rem;
}
.theme-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}

/* Mobile hamburger */
.hamburger{display:none;background:none;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer}
@media(max-width:768px){
  .nav-bar{padding:0.8rem 1rem}
  .hamburger{display:block}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;background:var(--bg-secondary);
    border-bottom:1px solid var(--glass-border);padding:0.5rem}
  .nav-links.open{display:flex}
  .nav-links a{border-radius:8px;padding:0.6rem 1rem}
}

/* ===== Hero Section ===== */
.hero{
  text-align:center;padding:5rem 1.5rem 3rem;
  position:relative;overflow:hidden;
}
.hero::after{
  content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);
  width:60%;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent-primary),transparent);
}
.hero-title{
  font-family:var(--font-display);
  font-size:clamp(2.5rem, 6vw, 5rem);
  font-weight:700;line-height:1.1;
  background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;margin-bottom:0.5rem;
  animation:fadeInUp 0.8s ease;
}
.hero-subtitle{
  font-size:1.1rem;color:var(--text-secondary);
  font-family:var(--font-body);
  animation:fadeInUp 0.8s ease 0.15s both;
}
.hero-dots{display:flex;justify-content:center;gap:0.6rem;margin-top:1.5rem}
.hero-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent-primary);
  animation:pulse 2s infinite;
}
.hero-dot:nth-child(1){animation-delay:0s}
.hero-dot:nth-child(2){animation-delay:0.3s;background:var(--accent-secondary)}
.hero-dot:nth-child(3){animation-delay:0.6s;background:var(--accent-warm)}
.hero-dot:nth-child(4){animation-delay:0.9s;background:var(--accent-secondary)}
.hero-dot:nth-child(5){animation-delay:1.2s}

@keyframes pulse{
  0%,100%{transform:scale(1);opacity:0.5}
  50%{transform:scale(1.5);opacity:1}
}
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}

/* ===== Container ===== */
.container{max-width:1200px;margin:0 auto;padding:1.5rem}

/* ===== Stats Bar ===== */
.stats-bar{
  display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;
  padding:1.5rem;margin-bottom:1rem;
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
}
.stat-item{text-align:center}
.stat-num{
  font-family:var(--font-mono);
  font-size:1.8rem;font-weight:700;
  color:var(--accent-primary);
}
.stat-label{font-size:0.8rem;color:var(--text-muted);margin-top:0.2rem}

/* ===== Announcement Banner ===== */
.banner{
  display:flex;align-items:center;justify-content:center;gap:0.8rem;
  padding:1rem 1.5rem;margin-bottom:2rem;
  background:rgba(245,158,11,0.08);
  border:1px solid rgba(245,158,11,0.3);
  border-radius:var(--radius-lg);
  color:var(--accent-warm);
  text-align:center;font-weight:500;
}
.banner-icon{font-size:1.2rem}
[data-theme="light"] .banner{background:rgba(245,158,11,0.05)}

/* ===== Section Headers ===== */
.section-header{
  text-align:center;padding:2rem 0 1.5rem;
}
.section-title{
  font-family:var(--font-display);
  font-size:2rem;font-weight:700;
  color:var(--text-primary);
  margin-bottom:0.3rem;
}
.section-desc{color:var(--text-secondary);font-size:0.95rem}

/* ===== Bento Grid ===== */
.bento-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:220px;
  gap:1rem;
  margin-bottom:2rem;
}
.bento-card{
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:1.5rem;
  transition:all var(--transition);
  cursor:pointer;
  display:flex;flex-direction:column;
  overflow:hidden;position:relative;
}
.bento-card:hover{
  transform:translateY(-4px);
  border-color:var(--accent-primary);
  box-shadow:var(--shadow-glow);
}
.bento-card.featured{
  grid-column:span 2;
  grid-row:span 2;
}
.bento-card .card-icon{
  font-size:2rem;margin-bottom:0.5rem;
}
.bento-card .card-title{
  font-family:var(--font-display);
  font-size:1.3rem;font-weight:700;
  color:var(--text-primary);
  margin-bottom:0.3rem;
}
.bento-card .card-desc{
  font-size:0.85rem;color:var(--text-secondary);
  flex:1;
}
.bento-card .card-tag{
  display:inline-block;padding:2px 10px;
  border-radius:12px;font-size:0.7rem;
  font-weight:600;margin-top:0.5rem;
  background:rgba(0,229,255,0.1);color:var(--accent-primary);
}
.bento-card .card-tag.urgent{background:rgba(239,68,68,0.15);color:var(--accent-danger)}
.bento-card .card-tag.new{background:rgba(124,58,237,0.15);color:var(--accent-secondary)}
.bento-card .card-date{
  font-family:var(--font-mono);
  font-size:0.75rem;color:var(--text-muted);
  margin-top:0.3rem;
}
@media(max-width:1024px){
  .bento-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .bento-grid{grid-template-columns:1fr}
  .bento-card.featured{grid-column:span 1;grid-row:span 1}
}

/* ===== Timeline ===== */
.timeline{
  position:relative;padding:2rem 0;max-width:800px;margin:0 auto;
}
.timeline::before{
  content:'';position:absolute;left:2rem;top:0;bottom:0;
  width:2px;
  background:linear-gradient(to bottom,transparent,var(--accent-primary),var(--accent-secondary),transparent);
}
.timeline-item{
  position:relative;padding-left:4rem;padding-bottom:2rem;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;left:1.75rem;top:0.3rem;
  width:14px;height:14px;border-radius:50%;
  background:var(--accent-primary);
  box-shadow:0 0 15px var(--accent-primary);
  transform:translateX(-50%);
}
.timeline-item:nth-child(2) .timeline-dot{background:var(--accent-secondary);box-shadow:0 0 15px var(--accent-secondary)}
.timeline-item:nth-child(3) .timeline-dot{background:var(--accent-warm);box-shadow:0 0 15px var(--accent-warm)}
.timeline-date{
  font-family:var(--font-mono);font-size:0.85rem;
  color:var(--accent-primary);margin-bottom:0.2rem;
}
.timeline-title{
  font-size:1.1rem;font-weight:700;color:var(--text-primary);
}
.timeline-desc{
  font-size:0.85rem;color:var(--text-secondary);margin-top:0.2rem;
}

/* ===== Card Grid (Scientists, Videos, Disclosure) ===== */
.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(320px,1fr));
  gap:1.2rem;
  margin:1.5rem 0;
}
.card{
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all var(--transition);
}
.card:hover{
  transform:translateY(-3px);
  border-color:var(--accent-primary);
  box-shadow:var(--shadow-glow);
}
.card-body{padding:1.2rem}
.card-img{
  width:100%;height:160px;object-fit:cover;
  background:var(--bg-tertiary);
}
.card-name{
  font-family:var(--font-display);
  font-size:1.1rem;font-weight:700;
  color:var(--text-primary);
}
.card-role{font-size:0.8rem;color:var(--accent-primary);margin-top:0.1rem}
.card-date{font-size:0.75rem;color:var(--text-muted);margin-top:0.2rem}
.card-summary{font-size:0.85rem;color:var(--text-secondary);margin-top:0.5rem;line-height:1.6}

/* ===== Video Cards ===== */
.videos-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(340px,1fr));
  gap:1.2rem;margin:1.5rem 0;
}
.video-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all var(--transition);
}
.video-card:hover{border-color:var(--accent-primary)}
.video-embed{
  position:relative;padding-top:56.25%;
  background:var(--bg-tertiary);
}
.video-embed iframe{
  position:absolute;top:0;left:0;width:100%;height:100%;border:0;
}
.video-embed .video-placeholder{
  position:absolute;top:0;left:0;width:100%;height:100%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-tertiary);
  color:var(--text-muted);font-size:3rem;
}
.video-info{padding:1rem}
.video-title{font-weight:600;font-size:0.95rem;color:var(--text-primary)}
.video-meta{display:flex;gap:0.5rem;margin-top:0.4rem;flex-wrap:wrap}
.video-source,.video-tag{
  font-size:0.7rem;padding:2px 8px;border-radius:10px;
  font-weight:500;
}
.video-source{background:rgba(0,229,255,0.1);color:var(--accent-primary)}
.video-tag{background:var(--bg-tertiary);color:var(--text-secondary)}

/* ===== Person Cards (Scientists) ===== */
.person-card{
  display:flex;gap:1rem;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:1.2rem;
  transition:all var(--transition);
}
.person-card:hover{border-color:var(--accent-primary)}
.person-img{
  width:80px;height:80px;border-radius:50%;
  background:var(--bg-tertiary);
  display:flex;align-items:center;justify-content:center;
  font-size:2rem;color:var(--text-muted);
  flex-shrink:0;
  border:2px solid var(--glass-border);
}
.person-content{flex:1}
.person-name{
  font-family:var(--font-display);
  font-size:1rem;font-weight:700;
}
.person-status{
  display:inline-block;padding:2px 8px;border-radius:10px;
  font-size:0.7rem;font-weight:600;margin-top:0.3rem;
}
.person-status.deceased{background:rgba(239,68,68,0.12);color:var(--accent-danger)}
.person-status.missing{background:rgba(245,158,11,0.12);color:var(--accent-warm)}
.person-desc{font-size:0.82rem;color:var(--text-secondary);margin-top:0.5rem;line-height:1.6}

/* ===== Disclosure Batch Cards ===== */
.batch-cards{display:flex;flex-direction:column;gap:1.2rem;margin:1.5rem 0}
.batch-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:1.5rem;
  transition:all var(--transition);
  border-left:4px solid var(--accent-primary);
  cursor:pointer;
}
.batch-card:hover{border-color:var(--accent-primary)}
.batch-card.featured{border-left-color:var(--accent-warm)}
.batch-card.newest{border-left-color:var(--accent-secondary)}
.batch-date{
  font-family:var(--font-mono);font-size:0.85rem;
  color:var(--accent-primary);margin-bottom:0.3rem;
}
.batch-card.featured .batch-date{color:var(--accent-warm)}
.batch-card.newest .batch-date{color:var(--accent-secondary)}
.batch-title{
  font-family:var(--font-display);
  font-size:1.4rem;font-weight:700;
}
.batch-meta{font-size:0.9rem;color:var(--text-secondary);margin:0.5rem 0}
.batch-desc{font-size:0.85rem;color:var(--text-muted);line-height:1.6}
.batch-stats{
  display:flex;gap:1.5rem;flex-wrap:wrap;
  margin-top:0.8rem;padding-top:0.8rem;border-top:1px solid var(--glass-border);
}
.batch-stat{text-align:center}
.batch-stat-num{font-family:var(--font-mono);font-size:1.3rem;font-weight:700;color:var(--accent-primary)}
.batch-stat-label{font-size:0.7rem;color:var(--text-muted)}
.batch-sources{font-size:0.75rem;color:var(--text-muted);margin-top:0.8rem}

/* ===== Search & Filter ===== */
.search-bar{
  display:flex;gap:0.5rem;margin-bottom:1.5rem;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  padding:0.5rem;
  backdrop-filter:blur(var(--glass-blur));
}
.search-input{
  flex:1;background:none;border:none;
  color:var(--text-primary);font-size:0.95rem;
  padding:0.5rem 0.8rem;outline:none;
  font-family:var(--font-body);
}
.search-input::placeholder{color:var(--text-muted)}
.filter-tags{display:flex;gap:0.4rem;flex-wrap:wrap;margin-bottom:1rem}
.filter-tag{
  padding:0.3rem 0.8rem;border-radius:16px;
  font-size:0.78rem;font-weight:500;
  background:var(--bg-tertiary);color:var(--text-secondary);
  border:1px solid transparent;cursor:pointer;
  transition:all var(--transition);
}
.filter-tag:hover{border-color:var(--accent-primary);color:var(--accent-primary)}
.filter-tag.active{background:rgba(0,229,255,0.12);color:var(--accent-primary);border-color:var(--accent-primary)}

/* ===== Page Header ===== */
.page-header{
  text-align:center;padding:2.5rem 0 1rem;
}
.page-title{
  font-family:var(--font-display);
  font-size:2.2rem;font-weight:700;
}
.page-subtitle{color:var(--text-secondary);font-size:1rem;margin-top:0.3rem}
.breadcrumb{
  display:flex;align-items:center;gap:0.5rem;
  font-size:0.8rem;color:var(--text-muted);
  justify-content:center;margin-top:0.5rem;
}

/* ===== Language Toggle ===== */
.lang-toggle{
  text-align:center;padding:2rem 0;
}
.lang-toggle a{
  display:inline-block;padding:0.6rem 2rem;
  border:1px solid var(--glass-border);
  border-radius:24px;font-weight:600;
  font-size:0.9rem;color:var(--accent-primary);
  transition:all var(--transition);
}
.lang-toggle a:hover{
  background:rgba(0,229,255,0.08);border-color:var(--accent-primary);
}

/* ===== Footer ===== */
.site-footer{
  text-align:center;padding:2.5rem 1.5rem;
  border-top:1px solid var(--glass-border);
  margin-top:2rem;background:var(--glass-bg);
}
.signal-dots{display:flex;justify-content:center;gap:0.5rem;margin-bottom:0.8rem}
.signal-dot{width:6px;height:6px;border-radius:50%;background:var(--text-muted)}
.footer-text{font-size:0.8rem;color:var(--text-muted)}
.footer-links{display:flex;justify-content:center;gap:1.5rem;flex-wrap:wrap;margin-top:0.5rem}
.footer-links a{font-size:0.8rem;color:var(--text-secondary)}
.footer-disclaimer{font-size:0.7rem;color:var(--text-muted);margin-top:1rem}

/* ===== Reveal on Scroll ===== */
@supports(animation-timeline: view()){
  .reveal{opacity:0;transform:translateY(30px);animation:reveal linear both;animation-timeline:view();animation-range:entry 5% cover 25%}
  @keyframes reveal{to{opacity:1;transform:translateY(0)}}
}

/* ===== Utilities ===== */
.text-center{text-align:center}
.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}
.hidden{display:none!important}
.no-results{text-align:center;padding:3rem;color:var(--text-muted)}

/* ===== Disclosure Content ===== */
.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:0.8rem;margin:1rem 0}
.file-item{
  display:flex;align-items:center;gap:0.8rem;
  padding:0.8rem 1rem;border-radius:var(--radius);
  background:var(--bg-tertiary);
  font-size:0.85rem;cursor:pointer;
  transition:all var(--transition);
}
.file-item:hover{background:rgba(0,229,255,0.06)}
.file-icon{font-size:1.2rem}
.file-name{flex:1;color:var(--text-primary)}
.file-agency{font-size:0.7rem;color:var(--text-muted)}

/* Expert Commentary */
.commentary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin: 20px 0 40px 0; }
.commentary-card { background: rgba(0,255,255,0.05); border: 1px solid rgba(0,255,255,0.15); border-radius: 14px; padding: 22px; transition: all 0.25s; }
.commentary-card:hover { border-color: rgba(0,255,255,0.4); background: rgba(0,255,255,0.08); transform: translateY(-2px); }
.comm-author { font-size: 1.1em; font-weight: bold; color: #0ff; margin-bottom: 3px; }
.comm-role { font-size: 0.82em; color: rgba(0,255,255,0.55); margin-bottom: 12px; }
.comm-text { font-size: 0.95em; color: #ccc; line-height: 1.65; margin-bottom: 12px; }
.comm-link { color: #0ff; font-size: 0.85em; text-decoration: none; border-bottom: 1px dotted rgba(0,255,255,0.3); }
.comm-link:hover { border-bottom-color: #0ff; }