/* ====================================
   陳順記宗祠 - 主樣式
   ==================================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700&family=Noto+Serif+TC:wght@400;600;700&display=swap');

/* --- CSS Variables --- */
:root {
  --color-primary: #1A1A1A;
  --color-primary-dark: #0D0D0D;
  --color-gold: #B8860B;
  --color-gold-light: #D4A017;
  --color-bg: #FAF7F2;
  --color-bg-warm: #F5EDD8;
  --color-text: #1C1A18;
  --color-text-light: #5C5040;
  --color-border: #D4C4A0;
  --color-white: #FFFFFF;
  --font-serif: 'Noto Serif TC', 'Songti SC', serif;
  --font-sans: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
  --radius: 4px;
  --max-width: 1100px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 17px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.85;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-gold); }

/* --- Skip Link --- */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  padding: 8px 16px; background: var(--color-primary); color: #fff;
  z-index: 9999; border-radius: 0 0 4px 0;
}
.skip-link:focus { left: 0; }

/* ====================================
   HEADER & NAVIGATION
   ==================================== */
.site-header {
  background: var(--color-primary);
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
  position: sticky; top: 0; z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 42px; height: 42px;
  background: var(--color-bg-warm);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.logo-text {
  color: var(--color-bg-warm);
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.3;
}

.logo-sub {
  font-size: 0.65rem;
  font-weight: 400;
  opacity: 0.75;
  display: block;
  letter-spacing: 0.08em;
}

/* Main Nav */
.site-nav { display: flex; align-items: center; gap: 2px; }

.nav-item { position: relative; }

.nav-link {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 12px;
  color: #F5EDD8;
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
}

/* Dropdown */
.nav-dropdown {
  position: absolute; top: calc(100% + 4px); left: 0;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 200;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: 10px 16px;
  color: var(--color-text);
  font-size: 0.88rem;
  border-bottom: 1px solid #F0EAE0;
  transition: background 0.15s;
}
.nav-dropdown a:last-child { border-bottom: none; }
.nav-dropdown a:hover { background: var(--color-bg-warm); color: var(--color-primary); }

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none; border: none;
  color: var(--color-bg-warm);
  font-size: 1.5rem; cursor: pointer;
  padding: 8px;
  line-height: 1;
}

/* ====================================
   HERO SECTION
   ==================================== */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, #2E2E2E 100%);
  padding: 72px 24px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url('../assets/images/family0.jpg') center/cover no-repeat;
  opacity: 0.12;
}

.hero-inner { position: relative; max-width: 780px; margin: 0 auto; }

.hero-badge {
  display: inline-block;
  padding: 4px 16px;
  border: 1px solid rgba(212,160,23,0.6);
  border-radius: 20px;
  color: var(--color-gold-light);
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  margin-bottom: 20px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: #FAFAF0;
  letter-spacing: 0.12em;
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.82);
  letter-spacing: 0.06em;
  margin-bottom: 32px;
}

.hero-divider {
  width: 60px; height: 2px;
  background: var(--color-gold);
  margin: 0 auto 28px;
}

.hero-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.9;
}

/* ====================================
   QUICK ENTRIES
   ==================================== */
.quick-entries {
  background: var(--color-primary-dark);
  padding: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.quick-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
}

.quick-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 14px 10px;
  text-align: center;
  color: var(--color-bg-warm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: background 0.2s, transform 0.15s;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.quick-card:hover {
  background: rgba(255,255,255,0.14);
  color: #fff;
  transform: translateY(-2px);
}
.quick-card .icon { font-size: 1.5rem; }

/* ====================================
   MAIN LAYOUT
   ==================================== */
.site-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.page-header {
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--color-border);
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.page-header .subtitle {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-top: 8px;
  letter-spacing: 0.04em;
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
  display: flex; flex-wrap: wrap; gap: 4px; align-items: center;
}
.breadcrumb a { color: var(--color-primary); }
.breadcrumb span { opacity: 0.5; }

/* ====================================
   CONTENT TYPOGRAPHY
   ==================================== */
.content h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-primary);
  margin: 36px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--color-primary);
  line-height: 1.45;
}

.content h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  margin: 28px 0 12px;
}

.content p {
  margin-bottom: 1.4em;
  line-height: 1.95;
  font-size: 1rem;
  text-indent: 2em;
}

.content p.no-indent { text-indent: 0; }

.content ul, .content ol {
  margin: 12px 0 20px 1.5em;
  line-height: 1.85;
}

.content li { margin-bottom: 6px; }

/* Section divider */
.section-divider {
  display: flex; align-items: center; gap: 16px;
  margin: 40px 0;
}
.section-divider::before, .section-divider::after {
  content: ''; flex: 1;
  height: 1px; background: var(--color-border);
}
.section-divider span {
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 1.1rem;
  white-space: nowrap;
}

/* Info card */
.info-card {
  background: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-gold);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 24px 0;
  font-size: 0.95rem;
  line-height: 1.85;
}

.info-card h3 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  margin-bottom: 10px;
}

/* ====================================
   HOME - CONTENT SECTIONS
   ==================================== */
.home-section {
  margin-bottom: 56px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  display: flex; align-items: center; gap: 12px;
}
.section-title::after {
  content: ''; flex: 1;
  height: 1px; background: var(--color-border);
}

.section-note {
  color: var(--color-text-light);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

/* ====================================
   ANCESTOR CARDS
   ==================================== */
.ancestor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.ancestor-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.15s;
}
.ancestor-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.ancestor-card h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.ancestor-card .gen { font-size: 0.8rem; color: var(--color-gold); font-weight: 600; }
.ancestor-card p { font-size: 0.85rem; color: var(--color-text-light); margin-top: 8px; line-height: 1.6; }
.ancestor-card a { display: block; margin-top: 12px; }
.btn-sm {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 20px;
  font-size: 0.82rem;
  transition: background 0.2s;
}
.btn-sm:hover { background: var(--color-primary-dark); color: #fff; }

/* ====================================
   PHOTO GALLERY
   ==================================== */
.photo-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.photo-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.photo-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.photo-item:hover img { transform: scale(1.05); }

.photo-item::after {
  content: '🔍';
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.55);
  opacity: 0;
  font-size: 1.8rem;
  transition: opacity 0.2s;
}
.photo-item:hover::after { opacity: 1; }

/* Lightbox */
.lightbox {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 9999;
  align-items: center; justify-content: center;
}
.lightbox.active { display: flex; }
.lightbox img {
  max-width: 90vw; max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius);
}
.lightbox-close {
  position: absolute; top: 20px; right: 24px;
  color: #fff; font-size: 2rem; cursor: pointer;
  background: none; border: none;
  line-height: 1;
}
.lightbox-prev, .lightbox-next {
  position: absolute; top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.15);
  border: none; color: #fff;
  font-size: 1.8rem; cursor: pointer;
  padding: 12px 16px;
  border-radius: var(--radius);
  transition: background 0.2s;
}
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }
.lightbox-prev:hover, .lightbox-next:hover { background: rgba(255,255,255,0.25); }

/* ====================================
   DOWNLOAD TABLE
   ==================================== */
.download-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.95rem;
}
.download-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.88rem;
}
.download-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.download-table tr:last-child td { border-bottom: none; }
.download-table tr:nth-child(even) td { background: var(--color-bg-warm); }
.download-table tr:hover td { background: #EEE5D0; }

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge-pdf { background: #FFE8E8; color: #C0392B; }
.badge-doc { background: #E8F0FF; color: #2563EB; }

.btn-download {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 16px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 0.83rem;
  font-weight: 500;
  transition: background 0.2s;
  white-space: nowrap;
}
.btn-download:hover { background: var(--color-primary-dark); color: #fff; }

/* ====================================
   LINKS PAGE
   ==================================== */
.links-section {
  margin-bottom: 40px;
}
.links-section h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 3px solid var(--color-gold);
}

.links-list {
  list-style: none;
  display: flex; flex-direction: column; gap: 10px;
}
.links-list li {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.links-list a {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px;
  color: var(--color-text);
  font-size: 0.95rem;
  transition: background 0.15s;
  border-radius: var(--radius);
}
.links-list a:hover { background: var(--color-bg-warm); color: var(--color-primary); }
.links-list .link-icon { font-size: 1.2rem; flex-shrink: 0; }
.links-list .ext { font-size: 0.75rem; color: var(--color-text-light); margin-left: auto; }

/* ====================================
   MANAGERS TABLE
   ==================================== */
.managers-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  margin: 16px 0 28px;
}
.manager-badge {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.manager-badge .num {
  font-size: 0.75rem; color: var(--color-gold); font-weight: 600;
  margin-bottom: 4px;
}
.manager-badge .name {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-primary);
  font-weight: 700;
}

.name-list {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 12px 0 20px;
}
.name-tag {
  padding: 4px 14px;
  background: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  font-size: 0.88rem;
  color: var(--color-text);
}

/* ====================================
   NEWS / ANNOUNCEMENTS
   ==================================== */
.news-list { display: flex; flex-direction: column; gap: 20px; margin-top: 20px; }

.news-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.news-date {
  background: var(--color-primary);
  color: var(--color-bg-warm);
  padding: 8px 16px;
  font-size: 0.85rem;
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.news-body {
  padding: 16px 20px;
  line-height: 1.85;
  font-size: 0.95rem;
}

.news-body p { margin-bottom: 0.8em; text-indent: 0; }

/* ====================================
   CONTACT / INFO BOX
   ==================================== */
.contact-box {
  background: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  font-size: 0.92rem;
  line-height: 2;
}

/* ====================================
   BACK TO TOP / TOC
   ==================================== */
#back-to-top {
  position: fixed; bottom: 28px; right: 28px;
  background: var(--color-primary);
  color: #fff;
  border: none; border-radius: 50%;
  width: 46px; height: 46px;
  font-size: 1.2rem; cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden;
  transition: opacity 0.3s, transform 0.2s;
  z-index: 80;
  display: flex; align-items: center; justify-content: center;
}
#back-to-top.visible { opacity: 1; visibility: visible; }
#back-to-top:hover { transform: translateY(-3px); }

/* Table of Contents */
.toc {
  background: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 36px;
  font-size: 0.9rem;
}
.toc h4 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  margin-bottom: 12px;
  font-size: 0.95rem;
}
.toc ol { margin-left: 1.2em; }
.toc li { margin-bottom: 6px; }
.toc a { color: var(--color-primary); }
.toc a:hover { color: var(--color-gold); }

/* ====================================
   FOOTER
   ==================================== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 40px 24px 28px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-section h4 {
  font-family: var(--font-serif);
  color: var(--color-bg-warm);
  font-size: 0.95rem;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.footer-section ul { list-style: none; }
.footer-section li { margin-bottom: 8px; }
.footer-section a {
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  transition: color 0.2s;
}
.footer-section a:hover { color: var(--color-bg-warm); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ====================================
   UTILITIES
   ==================================== */
.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.hidden { display: none !important; }

.notice-box {
  background: #FFF9E6;
  border: 1px solid #E2B93B;
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 0.9rem;
  margin: 20px 0;
  display: flex; gap: 10px; align-items: flex-start;
}
.notice-box .icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }

/* ====================================
   RESPONSIVE
   ==================================== */
@media (max-width: 768px) {
  html { font-size: 16px; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--color-primary-dark);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0;
    box-shadow: var(--shadow-md);
  }
  .site-nav.open { display: flex; }

  .nav-toggle { display: flex; }

  .header-inner { position: relative; }

  .nav-link {
    padding: 12px 20px;
    border-radius: 0;
    font-size: 0.95rem;
  }

  .nav-dropdown {
    position: static;
    opacity: 1; visibility: visible;
    transform: none;
    box-shadow: none;
    background: rgba(0,0,0,0.15);
    border: none;
    border-radius: 0;
    display: none;
  }
  .nav-item.open .nav-dropdown { display: block; }

  .nav-dropdown a {
    padding: 10px 20px 10px 36px;
    color: rgba(255,255,255,0.75);
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-dropdown a:hover { background: rgba(255,255,255,0.08); color: #fff; }

  .hero { padding: 48px 20px 44px; }

  .quick-grid { grid-template-columns: repeat(3, 1fr); }
  .quick-card { padding: 12px 8px; font-size: 0.8rem; }

  .site-main { padding: 32px 16px 48px; }

  .photo-gallery { grid-template-columns: repeat(2, 1fr); }

  .ancestor-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

  .footer-inner { grid-template-columns: 1fr 1fr; }

  .download-table { font-size: 0.88rem; }
  .download-table th, .download-table td { padding: 10px 12px; }

  #back-to-top { bottom: 16px; right: 16px; width: 40px; height: 40px; }
}

@media (max-width: 480px) {
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .photo-gallery { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  .managers-list { grid-template-columns: repeat(2, 1fr); }
}