/* ============================================================
   Tộc Nguyễn Đức – Website style
   Phong cách: truyền thống Việt, đỏ-vàng-đen, font có dấu rõ
   ============================================================ */

:root {
  --color-primary: #8b1a1a;          /* đỏ thẫm - màu hoàng kỳ */
  --color-primary-dark: #5e0f0f;
  --color-accent: #c9a449;           /* vàng đồng */
  --color-accent-light: #e6c976;
  --color-bg: #fdf9f0;               /* nền giấy ngà */
  --color-bg-alt: #f5ecd9;
  --color-text: #2b1d10;
  --color-text-soft: #5a4a35;
  --color-border: #c9a449;
  --color-pending: #b97500;

  --font-serif: 'Noto Serif', 'Times New Roman', 'Be Vietnam Pro', serif;
  --font-sans: 'Noto Sans', 'Be Vietnam Pro', 'Segoe UI', sans-serif;

  --shadow-soft: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-strong: 0 4px 16px rgba(0,0,0,0.15);

  --radius: 6px;
  --max-width: 1180px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-serif);
  line-height: 1.65;
  font-size: 16px;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color .15s;
}
a:hover { color: var(--color-primary-dark); text-decoration: underline; }

/* ===== HEADER ===== */
.site-header {
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-bg);
  padding: 1.5rem 1rem;
  border-bottom: 4px solid var(--color-accent);
  text-align: center;
}
.site-header h1 {
  margin: 0;
  font-size: 2rem;
  letter-spacing: 0.04em;
  font-weight: 700;
}
.site-header .subtitle {
  font-size: 1rem;
  color: var(--color-accent-light);
  margin-top: 0.3rem;
  font-style: italic;
}

/* ===== NAVIGATION ===== */
.site-nav {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-soft);
}
.site-nav a {
  display: inline-block;
  padding: 0.9rem 1.4rem;
  color: var(--color-text);
  font-weight: 600;
  border-bottom: 3px solid transparent;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
  text-decoration: none;
  background: var(--color-bg);
}

/* ===== LAYOUT ===== */
main {
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 0 1.2rem;
}
section { margin-bottom: 2.5rem; }

h2 {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 0.4rem;
  font-size: 1.6rem;
  margin-top: 2rem;
}
h3 {
  color: var(--color-primary-dark);
  font-size: 1.25rem;
  margin-top: 1.5rem;
}

blockquote {
  border-left: 4px solid var(--color-accent);
  background: var(--color-bg-alt);
  padding: 0.8rem 1.2rem;
  margin: 1rem 0;
  font-style: italic;
  color: var(--color-text-soft);
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: var(--color-bg);
  text-align: center;
  padding: 1.5rem 1rem;
  margin-top: 3rem;
  font-size: 0.9rem;
}
.site-footer a { color: var(--color-accent-light); }

/* ===== HERO (homepage) ===== */
.hero {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-soft);
}
.hero .clan-name {
  font-size: 2.4rem;
  color: var(--color-primary);
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.hero .clan-loc {
  color: var(--color-text-soft);
  font-style: italic;
  margin-top: 0.4rem;
}
.hero .clan-couplet {
  margin-top: 1.4rem;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
}
.hero .clan-couplet p { margin: 0.2rem 0; }

/* ===== PHAI CARDS ===== */
.phai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.phai-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow-soft);
  transition: transform .15s, box-shadow .15s;
}
.phai-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-strong);
}
.phai-card .phai-num {
  font-size: 0.85rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  font-weight: 700;
  text-transform: uppercase;
}
.phai-card .phai-name {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin: 0.3rem 0;
  font-weight: 700;
}
.phai-card .phai-meta {
  font-size: 0.9rem;
  color: var(--color-text-soft);
}
.phai-card.pending {
  border-style: dashed;
  background: #fff7e6;
}

/* ===== TIMELINE ===== */
.timeline {
  border-left: 3px solid var(--color-accent);
  padding-left: 1.2rem;
  margin: 1rem 0;
}
.timeline-item {
  position: relative;
  margin-bottom: 1.2rem;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.55rem;
  top: 0.45rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-accent);
}
.timeline-item .year {
  font-weight: 700;
  color: var(--color-primary);
}
.timeline-item .desc { color: var(--color-text); margin-top: 0.2rem; }

/* ===== TREE (Tông đồ) ===== */
.tree-controls {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  flex-wrap: wrap;
  background: var(--color-bg-alt);
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}
.tree-controls input,
.tree-controls select {
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font: inherit;
  background: #fff;
}
.tree-controls button {
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
}
.tree-controls button:hover { background: var(--color-primary-dark); }

.tree-container {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.tree-toolbar {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  padding: 0.6rem 0.8rem;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}
.tree-toolbar button {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-sans);
}
.tree-toolbar button:hover { background: var(--color-accent-light); }

.tree-viewport {
  position: relative;
  width: 100%;
  height: 70vh;
  min-height: 520px;
  overflow: hidden;
  background:
    repeating-linear-gradient(0deg, #faf3e0 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, #faf3e0 0 1px, transparent 1px 28px),
    #fffaf0;
  cursor: grab;
}
.tree-viewport:active { cursor: grabbing; }

.tree-stage {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
}

.gen-labels {
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
}
.gen-label {
  position: absolute;
  left: 4px;
  background: var(--color-primary);
  color: #fff;
  padding: 2px 10px;
  border-radius: 12px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.tree-card {
  position: absolute;
  display: flex !important;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 6px 8px !important;
  margin: 0 !important;
  text-align: center;
  font-size: 0.82rem !important;
  line-height: 1.2;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.tree-card .m-name {
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--color-text);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.tree-card .m-meta {
  font-size: 0.7rem;
  color: var(--color-text-soft);
  font-family: var(--font-sans);
  margin-top: 1px;
}
.tree-card .m-meta .m-id { margin-right: 4px; }
.tree-card .m-meta .m-years { color: var(--color-primary-dark); }
.tree-card .m-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  justify-content: center;
  margin-top: 2px;
}
.tree-card .m-status {
  font-size: 0.65rem;
  color: var(--color-text-soft);
  font-style: italic;
}
.tree-card .tag-pending {
  font-size: 0.6rem;
  padding: 0 5px;
  margin: 0;
}
.tree-card .tag-assumed { background: #0066b3 !important; }
.tree-card.spouse-card {
  background: #fffaf0;
  border-style: dashed;
}

.spouse-eq {
  position: absolute;
  color: var(--color-text-soft);
  font-size: 1rem;
  pointer-events: none;
}

.tree-svg line { stroke-linecap: round; }

.tree-minimap {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 200px;
  height: 130px;
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  overflow: hidden;
}
.tree-minimap svg {
  display: block;
  width: 100%;
  height: 100%;
}
.minimap-viewport {
  position: absolute;
  border: 2px solid var(--color-primary);
  background: rgba(139, 26, 26, 0.08);
  pointer-events: none;
}

@media (max-width: 720px) {
  .tree-minimap { width: 130px; height: 90px; }
  .tree-viewport { height: 60vh; min-height: 380px; }
}

.member-card {
  display: inline-block;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.5rem 0.9rem;
  margin: 0.3rem 0;
  cursor: pointer;
  transition: background .15s, border-color .15s;
  font-size: 0.95rem;
}
.member-card:hover {
  background: var(--color-accent-light);
  border-color: var(--color-primary);
}
.member-card.male { border-left: 4px solid var(--color-primary); }
.member-card.female { border-left: 4px solid #c45a8c; }
.member-card.unknown { border-left: 4px solid #777; }
.member-card.pending {
  background: #fff7e6;
  border-style: dashed;
}
.member-card .m-id {
  font-size: 0.75rem;
  color: var(--color-text-soft);
  margin-right: 0.5rem;
  font-family: var(--font-sans);
}
.member-card .m-name { font-weight: 700; }
.member-card .m-gen {
  display: inline-block;
  font-size: 0.75rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.05rem 0.45rem;
  border-radius: 10px;
  margin-left: 0.4rem;
}
.member-card .m-status {
  font-size: 0.78rem;
  color: var(--color-text-soft);
  font-style: italic;
  margin-left: 0.4rem;
}

.toggle-children {
  display: inline-block;
  width: 1.2rem;
  height: 1.2rem;
  text-align: center;
  line-height: 1.1rem;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: 50%;
  margin-right: 0.4rem;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  user-select: none;
  background: #fff;
}
.toggle-children:hover { background: var(--color-accent-light); }

/* ===== MODAL (member detail) ===== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
}
.modal-backdrop.show { display: flex; }
.modal {
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-strong);
}
.modal-header {
  background: var(--color-primary);
  color: #fff;
  padding: 1rem 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: var(--radius) var(--radius) 0 0;
}
.modal-header h3 { margin: 0; color: #fff; }
.modal-close {
  background: transparent;
  color: #fff;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}
.modal-body { padding: 1.2rem; }
.modal-body dl {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 0.4rem 1rem;
  margin: 0;
}
.modal-body dt {
  font-weight: 700;
  color: var(--color-primary-dark);
}
.modal-body dd { margin: 0; }
.modal-body .pending-note {
  background: #fff7e6;
  border-left: 4px solid var(--color-pending);
  padding: 0.6rem 0.9rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--color-pending);
}

/* ===== MINI-TREE in modal ===== */
.mini-tree {
  background: #fffaf0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1.2rem;
}
.mt-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.mt-row-label {
  flex-shrink: 0;
  width: 90px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: right;
  padding-right: 0.5rem;
  border-right: 2px solid var(--color-accent);
}
.mt-cards {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: stretch;
  padding: 0.4rem 0;
}
.mt-eq {
  align-self: center;
  color: var(--color-text-soft);
  font-size: 1.2rem;
}
.mt-connector {
  width: 2px;
  height: 18px;
  background: var(--color-accent);
  margin-left: calc(90px + 0.5rem + 0.4rem);
}
.mt-current {
  background: rgba(201, 164, 73, 0.12);
  border-radius: 4px;
  padding: 0.3rem 0;
}

.mini-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 110px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.5rem 0.4rem;
  text-align: center;
  font-size: 0.78rem;
  line-height: 1.25;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  transition: transform .12s, box-shadow .12s;
}
.mini-node.clickable { cursor: pointer; }
.mini-node.clickable:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
  border-color: var(--color-primary);
}
.mini-node.current {
  border-width: 2px;
  border-color: var(--color-primary);
  background: var(--color-bg);
  width: 130px;
}
.mini-node.male { border-left: 4px solid var(--color-primary); }
.mini-node.female { border-left: 4px solid #c45a8c; }
.mini-node.unknown { border-left: 4px solid #777; }

.mini-photo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-bg-alt);
  border: 2px solid var(--color-accent);
}
.mini-node.current .mini-photo {
  width: 84px;
  height: 84px;
}
.mini-photo.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--color-text-soft);
}
.mini-name {
  margin-top: 0.4rem;
  font-weight: 700;
  color: var(--color-text);
  word-break: break-word;
}
.mini-meta {
  font-size: 0.68rem;
  color: var(--color-text-soft);
  font-family: var(--font-sans);
  margin-top: 1px;
}
.mini-status {
  font-size: 0.68rem;
  color: var(--color-pending);
  font-style: italic;
  margin-top: 2px;
}

.mt-section {
  color: var(--color-primary-dark);
  font-size: 1rem;
  margin: 0 0 0.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.3rem;
}

@media (max-width: 720px) {
  .mt-row { flex-direction: column; align-items: stretch; gap: 0.4rem; }
  .mt-row-label {
    width: auto; text-align: left;
    border-right: none;
    border-bottom: 1px solid var(--color-accent);
    padding: 0 0 0.2rem;
  }
  .mt-connector { margin-left: 0; align-self: center; }
  .mini-node, .mini-node.current { width: 100px; }
  .mini-photo { width: 52px; height: 52px; }
  .mini-node.current .mini-photo { width: 64px; height: 64px; }
}

/* ===== EVENTS ===== */
.event-list {
  list-style: none;
  padding: 0;
}
.event-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-bottom: 0.8rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  box-shadow: var(--shadow-soft);
}
.event-item .event-date {
  color: var(--color-accent);
  font-weight: 700;
  font-family: var(--font-sans);
  min-width: 110px;
  flex-shrink: 0;
}
.event-item .event-title {
  font-size: 1.1rem;
  color: var(--color-primary);
  font-weight: 700;
  display: block;
}
.event-item .event-summary {
  color: var(--color-text-soft);
  font-size: 0.95rem;
  margin-top: 0.3rem;
}

/* ===== UTIL ===== */
.text-center { text-align: center; }
.muted { color: var(--color-text-soft); }
.tag-pending {
  display: inline-block;
  background: var(--color-pending);
  color: #fff;
  font-size: 0.7rem;
  padding: 0.1rem 0.5rem;
  border-radius: 10px;
  margin-left: 0.4rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: var(--font-sans);
}
.glossary-list {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0.4rem 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.2rem;
}
.glossary-list dt {
  font-weight: 700;
  color: var(--color-primary);
}
.glossary-list dd { margin: 0; }

.loading {
  text-align: center;
  color: var(--color-text-soft);
  padding: 2rem;
  font-style: italic;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 720px) {
  .site-header h1 { font-size: 1.5rem; }
  .hero .clan-name { font-size: 1.7rem; }
  .modal-body dl { grid-template-columns: 1fr; }
  .glossary-list { grid-template-columns: 1fr; }
  .event-item { flex-direction: column; }
}

/* ===== PRINT ===== */
@media print {
  .site-nav, .tree-controls, .toggle-children { display: none; }
  body { background: #fff; }
}