:root{
  --bg:#f7f3ea;
  --paper:#fffaf0;
  --text:#2c2417;
  --muted:#756955;
  --primary:#8b5a2b;
  --primary-dark:#5d3616;
  --accent:#c79a46;
  --line:#c8b088;
  --male:#2f6f9f;
  --female:#b85c8a;
  --passed:#7b7b7b;
  --shadow:0 18px 45px rgba(57,35,10,.13);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:linear-gradient(180deg,#f6ecda 0%,var(--bg) 42%,#fff 100%);color:var(--text)}
.site-locked{overflow:hidden}
.site-locked #siteContent{display:none}
.site-gate{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;overflow:auto;padding:20px;background:linear-gradient(135deg,rgba(44,25,7,.94),rgba(115,67,22,.86)),url('https://images.unsplash.com/photo-1519681393784-d120267933ba?auto=format&fit=crop&w=1600&q=80') center/cover}
.site-gate-card{width:min(430px,100%);padding:34px;border:1px solid rgba(255,255,255,.24);border-radius:30px;background:rgba(255,250,240,.96);box-shadow:0 30px 90px rgba(0,0,0,.38);text-align:center}
.site-gate-logo{display:grid;place-items:center;width:68px;height:68px;margin:0 auto 18px;border-radius:22px;background:var(--primary);color:#fff;font-size:32px;font-weight:900;box-shadow:0 12px 30px rgba(93,54,22,.25)}
.site-gate-eyebrow{margin:0 0 8px;color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.15em;text-transform:uppercase}
.site-gate-card h1{margin:0 0 10px;font-size:30px;line-height:1.2}
.site-gate-card>p:not(.site-gate-eyebrow):not(.site-gate-error){margin:0 0 24px;color:var(--muted);line-height:1.6}
.site-gate-card label{display:block;margin-bottom:8px;text-align:left;font-size:14px;font-weight:800}
.site-gate-card input{width:100%;min-height:52px;padding:13px 15px;border:1px solid #dcc7a6;border-radius:16px;background:#fff;color:var(--text);font:inherit;outline:none}
.site-gate-card input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(139,90,43,.12)}
.site-gate-error{margin:10px 0 0;color:#b12d2d;font-size:13px;text-align:left}
.site-gate-submit{width:100%;margin-top:16px;background:var(--primary);color:#fff}
.hero{min-height:460px;background:linear-gradient(120deg,rgba(44,25,7,.88),rgba(133,80,26,.62)),url('https://images.unsplash.com/photo-1519681393784-d120267933ba?auto=format&fit=crop&w=1600&q=80') center/cover;color:#fff;padding:22px clamp(18px,4vw,70px) 70px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;inset:auto -10% -70px -10%;height:140px;background:var(--bg);border-radius:50% 50% 0 0;z-index:0}.hero>*{position:relative;z-index:1}.navbar{display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:12px}.brand-logo{width:48px;height:48px;border-radius:16px;background:rgba(255,255,255,.18);display:grid;place-items:center;font-weight:800;border:1px solid rgba(255,255,255,.28)}.brand span{display:block;color:#ead8bb;font-size:13px}.nav-actions{display:flex;gap:10px;flex-wrap:wrap}.btn{border:0;border-radius:999px;padding:11px 18px;font-weight:700;cursor:pointer}.btn-primary{background:#fff;color:var(--primary-dark)}.btn-ghost{background:rgba(255,255,255,.13);color:#fff;border:1px solid rgba(255,255,255,.25)}.hero-content{max-width:920px;margin:78px auto 0;text-align:center}.eyebrow{text-transform:uppercase;letter-spacing:.2em;color:#f5d99a;font-size:13px}.hero h1{font-size:clamp(38px,7vw,82px);margin:10px 0 12px}.subtitle{max-width:720px;margin:0 auto 30px;color:#f8ead4;font-size:18px;line-height:1.7}.stats{display:grid;grid-template-columns:repeat(4,minmax(120px,1fr));gap:14px;max-width:780px;margin:0 auto}.stats div{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:22px;padding:18px;backdrop-filter:blur(8px)}.stats strong{display:block;font-size:30px}.stats span{color:#ecd8b7;font-size:13px}
main{width:min(1320px,calc(100% - 28px));margin:-54px auto 40px;position:relative;z-index:2}.card{background:rgba(255,250,240,.94);border:1px solid #eadbc2;border-radius:28px;box-shadow:var(--shadow)}.toolbar{padding:18px;display:grid;grid-template-columns:1fr 180px 180px 180px;gap:12px;margin-bottom:18px}.toolbar input,.toolbar select{width:100%;border:1px solid #dcc7a6;background:#fff;border-radius:16px;padding:13px 14px;font-size:15px;color:var(--text)}.notice{padding:14px 18px;margin-bottom:18px;color:var(--muted)}.notice.hidden{display:none}.tree-shell{padding:22px;overflow:hidden}.tree-header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:18px}.tree-header h2{margin:0 0 6px;font-size:28px}.tree-header p{margin:0;color:var(--muted)}.legend{display:flex;gap:13px;flex-wrap:wrap;color:var(--muted);font-size:14px}.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px}.male{background:var(--male)}.female{background:var(--female)}.passed{background:var(--passed)}
.tree-container{min-height:360px;overflow:auto;padding:20px;border-radius:22px;background:linear-gradient(90deg,rgba(139,90,43,.05) 1px,transparent 1px),linear-gradient(rgba(139,90,43,.05) 1px,transparent 1px);background-size:28px 28px}.generation{min-width:980px;margin-bottom:46px;text-align:center}.generation-title{display:inline-block;background:var(--primary);color:#fff;border-radius:999px;padding:9px 20px;font-weight:800;margin:0 auto 28px}.row{display:flex;justify-content:center;gap:40px;align-items:flex-start;position:relative;flex-wrap:wrap}.family-unit{position:relative;margin:0 10px 24px;display:flex;flex-direction:column;align-items:center}.couple{display:flex;gap:14px;align-items:stretch;position:relative}.couple:after{content:"♥";position:absolute;left:50%;top:42%;transform:translate(-50%,-50%);background:var(--paper);color:#b64545;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;border:1px solid #eed1d1;font-size:14px}.person-card{width:190px;min-height:222px;background:#fff;border:1px solid #ead9bd;border-radius:24px;padding:14px;box-shadow:0 12px 28px rgba(63,39,12,.1);cursor:pointer;transition:.2s;position:relative}.person-card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(63,39,12,.16)}.person-card.passed{filter:grayscale(.45);background:#f7f7f7}.avatar{width:76px;height:76px;border-radius:22px;object-fit:cover;background:#eee;margin:0 auto 10px;display:block;border:3px solid #fff;box-shadow:0 4px 16px rgba(0,0,0,.12)}.person-name{font-weight:850;font-size:16px;line-height:1.25;margin-bottom:6px}.person-meta{font-size:13px;color:var(--muted);line-height:1.5}.badge{display:inline-block;margin-top:9px;border-radius:999px;padding:5px 10px;font-size:12px;background:#f3eadb;color:var(--primary-dark)}.person-card[data-gender="Nam"]{border-top:5px solid var(--male)}.person-card[data-gender="Nữ"]{border-top:5px solid var(--female)}.children-line{width:2px;height:30px;background:var(--line);margin:0 auto}.children-wrap{display:flex;gap:24px;justify-content:center;position:relative;padding-top:22px}.children-wrap:before{content:"";position:absolute;top:0;left:12%;right:12%;height:2px;background:var(--line)}.child-branch{position:relative}.child-branch:before{content:"";position:absolute;top:-22px;left:50%;width:2px;height:22px;background:var(--line)}
.generation-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}.empty{padding:50px;text-align:center;color:var(--muted)}
.modal{position:fixed;inset:0;display:none;z-index:50}.modal.show{display:block}.modal-backdrop{position:absolute;inset:0;background:rgba(27,18,8,.58);backdrop-filter:blur(4px)}.modal-card{position:relative;width:min(760px,calc(100% - 24px));max-height:88vh;overflow:auto;background:#fffaf0;margin:6vh auto;border-radius:30px;box-shadow:0 30px 90px rgba(0,0,0,.35);padding:26px}.modal-close{position:absolute;right:18px;top:15px;border:0;background:#f1e4cf;border-radius:50%;width:38px;height:38px;font-size:26px;cursor:pointer}.profile{display:grid;grid-template-columns:140px 1fr;gap:22px}.profile .avatar{width:140px;height:140px;border-radius:32px}.profile h3{font-size:30px;margin:0 0 8px}.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:18px}.info{background:#fff;border:1px solid #eadbc2;border-radius:18px;padding:12px}.info span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}.bio{margin-top:18px;background:#fff;border:1px solid #eadbc2;border-radius:18px;padding:15px;line-height:1.7}
footer{text-align:center;color:var(--muted);padding:30px 12px 50px}
@media(max-width:860px){.stats{grid-template-columns:repeat(2,1fr)}.toolbar{grid-template-columns:1fr}.tree-header{flex-direction:column}.nav-actions{display:none}.person-card{width:164px}.couple{gap:8px}.generation{min-width:760px}.profile{grid-template-columns:1fr;text-align:center}.info-grid{grid-template-columns:1fr}}
@media print{.navbar,.toolbar,.notice,.btn,footer,.modal{display:none!important}.hero{min-height:auto;padding:20px;color:#111;background:#fff}.hero:after{display:none}main{margin:0;width:100%}.tree-container{overflow:visible;background:#fff}.card{box-shadow:none;border:0}.generation{page-break-inside:avoid}}

/* Map */
.map-shell { margin-top: 24px; }
.family-map {
  width: 100%;
  min-height: 430px;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(120, 78, 35, .14);
  background: #f3eadc;
}
.map-popup strong { color: #5f3814; }
.map-popup span { display: block; color: #6f5a45; font-size: 12px; margin-top: 2px; }
.member-cluster-icon span{display:grid;place-items:center;width:40px;height:40px;border:3px solid #fff;border-radius:50%;background:var(--primary);color:#fff;font-size:14px;font-weight:900;box-shadow:0 6px 18px rgba(50,30,8,.3)}
.map-popup-list{max-height:180px;margin:10px 0 0;padding:0;overflow:auto;list-style:none}
.map-popup-list li{padding:7px 0;border-top:1px solid #eadbc2}
.map-popup-list li strong{display:block;font-size:13px}

/* Admin */
.admin-panel { margin-top: 24px; }
.hidden { display: none !important; }
.notice.compact { margin: 12px 0; padding: 12px 14px; }
.member-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 18px;
}
.member-form input,
.member-form select,
.member-form textarea {
  width: 100%;
  border: 1px solid rgba(120, 78, 35, .18);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  background: #fffaf3;
  color: #332313;
  outline: none;
}
.member-form textarea {
  grid-column: span 2;
  min-height: 92px;
  resize: vertical;
}
.member-form button { min-height: 44px; }
.member-form-field{display:flex;flex-direction:column;gap:7px;min-width:0}
.member-form-field>label{color:var(--primary-dark);font-size:13px;font-weight:800}
.member-form-field>small{color:var(--muted);font-size:11px;line-height:1.35}
.member-form select[multiple]{min-height:118px;padding:6px}
.member-form select[multiple] option{padding:8px;border-radius:8px}
.date-mode{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border:1px solid rgba(120,78,35,.16);border-radius:13px;background:#f1e4cf}
.date-mode button{min-height:34px;padding:6px 8px;border:0;border-radius:9px;background:transparent;color:var(--muted);font-size:12px;font-weight:800;cursor:pointer}
.date-mode button.active{background:#fff;color:var(--primary-dark);box-shadow:0 2px 8px rgba(63,39,12,.12)}
.member-form input[readonly]{background:#eee7dc;color:#756955;cursor:not-allowed}
.member-form input:invalid:not(:placeholder-shown),.member-form select:invalid{border-color:#b83b34}
.admin-hint { color: #6f5a45; margin-top: 14px; }
.profile-actions { margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap; }

@media (max-width: 920px) {
  .member-form { grid-template-columns: repeat(2, minmax(140px, 1fr)); }
}
@media (max-width: 560px) {
  .member-form { grid-template-columns: 1fr; }
  .member-form textarea { grid-column: span 1; }
  .family-map { min-height: 340px; }
}

/* Mobile-first navigation and content sections */
.btn{min-height:44px}
.btn-secondary{background:#f1e4cf;color:var(--primary-dark);border:1px solid #dcc7a6}
.section-nav{position:sticky;top:0;z-index:40;display:flex;justify-content:center;gap:8px;padding:10px max(12px,calc((100% - 920px)/2));background:rgba(255,250,240,.96);border-bottom:1px solid #eadbc2;box-shadow:0 8px 24px rgba(57,35,10,.1);backdrop-filter:blur(12px)}
.section-nav a,.section-nav button{display:flex;align-items:center;justify-content:center;min-height:44px;padding:9px 18px;border:0;border-radius:999px;background:transparent;color:var(--primary-dark);font:700 14px/1.2 inherit;text-decoration:none;cursor:pointer}
.section-nav a:hover,.section-nav button:hover,.section-nav a:focus-visible,.section-nav button:focus-visible{background:#f1e4cf;outline:none}
.section-nav a{background:#f1e4cf;border:1px solid #d7b987;color:#4d2c11;font-weight:850;box-shadow:0 3px 9px rgba(93,54,22,.1)}
.section-nav a:hover,.section-nav a:focus-visible{background:var(--primary);border-color:var(--primary);color:#fff}
.anchor-section{scroll-margin-top:0}
.section-nav+main{margin-top:24px}
.toolbar input,.toolbar select{min-height:48px}
.tree-header p{line-height:1.55}
.map-shell,.admin-panel{padding:22px}
.member-form .btn-primary{background:var(--primary);color:#fff}
.tree-header-actions{display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.tree-zoom-controls{display:flex;align-items:center;padding:4px;border:1px solid #d7b987;border-radius:999px;background:#fff;box-shadow:0 6px 16px rgba(63,39,12,.1)}
.tree-zoom-controls button{display:grid;place-items:center;min-width:40px;height:40px;padding:0 10px;border:0;border-radius:999px;background:transparent;color:var(--primary-dark);font-size:24px;font-weight:900;cursor:pointer}
.tree-zoom-controls button:hover,.tree-zoom-controls button:focus-visible{background:#f1e4cf;outline:none}
.tree-zoom-controls button:disabled{cursor:not-allowed;opacity:.35}
.tree-zoom-controls .tree-zoom-value{min-width:64px;border-radius:12px;font-size:13px}
.tree-zoom-layer{display:block;width:max-content;min-width:100%;padding:20px 64px 56px;box-sizing:border-box;transform-origin:top left}
.tree-zoom-layer>.generation{width:max-content;min-width:100%;margin-bottom:0}
.tree-zoom-layer>.generation>.row{width:max-content;min-width:100%;justify-content:center;flex-wrap:nowrap}
.tree-container{scroll-behavior:smooth;overscroll-behavior-inline:contain;scrollbar-gutter:stable both-edges}
.couple:after{content:none}
.partner-item{display:flex;align-items:center;gap:14px}
.partner-heart{display:grid;place-items:center;flex:0 0 30px;width:30px;height:30px;border:1px solid #eed1d1;border-radius:50%;background:var(--paper);color:#b64545;font-size:14px}
.couple.multiple{gap:18px}
.couple.multiple .partner-item{gap:10px}
.branch-toggle{position:relative;z-index:2;display:flex;align-items:center;gap:7px;min-height:34px;margin:12px auto 0;padding:5px 10px 5px 6px;border:1px solid #d7b987;border-radius:999px;background:#fffaf0;color:var(--primary-dark);font:800 12px/1.2 inherit;cursor:pointer;box-shadow:0 4px 12px rgba(63,39,12,.09);transition:.18s}
.branch-toggle:hover,.branch-toggle:focus-visible{border-color:var(--primary);background:#f1e4cf;outline:none;transform:translateY(-1px)}
.branch-toggle-icon{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:var(--primary);color:#fff;font-size:18px;line-height:1}
.branch-toggle-count{display:grid;place-items:center;min-width:21px;height:21px;padding:0 5px;border-radius:999px;background:#eadbc2;color:var(--primary-dark);font-size:11px}
.branch-toggle.collapsed{background:#fff;border-color:var(--primary)}
.family-unit.collapsed>.children-line,.family-unit.collapsed>.children-wrap{display:none}

/* Member list */
.member-list-shell{margin-top:24px;padding:22px}
.list-count{flex:0 0 auto;padding:8px 12px;border-radius:999px;background:#f1e4cf;color:var(--primary-dark);font-size:13px;font-weight:800}
.member-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.member-list-item{display:grid;grid-template-columns:56px minmax(0,1fr) minmax(120px,.7fr) auto;align-items:center;gap:12px;min-height:80px;padding:11px;border:1px solid #eadbc2;border-radius:18px;background:#fff;cursor:pointer;transition:.18s}
.member-list-item:hover,.member-list-item:focus-visible{transform:translateY(-2px);border-color:#caa674;box-shadow:0 10px 24px rgba(63,39,12,.1);outline:none}
.member-list-item img{width:56px;height:56px;border-radius:16px;object-fit:cover;background:#eee}
.member-list-main{min-width:0}
.member-list-main strong,.member-list-main span{display:block}
.member-list-main strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.member-list-main span,.member-list-place{margin-top:4px;color:var(--muted);font-size:13px}
.member-list-status{padding:6px 9px;border-radius:999px;background:#f3eadb;color:var(--primary-dark);font-size:12px;white-space:nowrap}

@media(max-width:860px){
  .hero{min-height:auto;padding:16px 14px 74px}
  .navbar{align-items:flex-start;flex-wrap:wrap}
  .brand-logo{width:44px;height:44px;border-radius:14px}
  .nav-actions{display:grid;grid-template-columns:1fr;width:100%;gap:8px}
  .nav-actions .btn{padding:9px 12px}
  .hero-content{margin-top:38px}
  .hero h1{font-size:clamp(36px,12vw,58px)}
  .subtitle{font-size:15px;line-height:1.55;margin-bottom:22px}
  .eyebrow{font-size:11px;letter-spacing:.14em}
  .stats{gap:8px}
  .stats div{padding:12px 8px;border-radius:16px}
  .stats strong{font-size:24px}
  .section-nav{justify-content:flex-start;overflow-x:auto;padding:8px 10px;scrollbar-width:none}
  .section-nav::-webkit-scrollbar{display:none}
  .section-nav a,.section-nav button{flex:0 0 auto;padding:8px 14px}
}

@media(max-width:560px){
  .site-gate{padding:14px}
  .site-gate-card{padding:26px 20px;border-radius:24px}
  .site-gate-card h1{font-size:25px}
  .site-gate-logo{width:60px;height:60px;border-radius:19px;font-size:28px}
  .section-nav{display:grid;grid-template-columns:1fr 1.55fr .85fr;gap:4px;overflow:visible}
  .section-nav a,.section-nav button{min-width:0;padding:8px 4px;font-size:12px;white-space:nowrap}
  main{width:calc(100% - 20px);margin:14px auto 28px}
  .card{border-radius:20px}
  .toolbar{padding:12px;gap:9px;margin-bottom:12px}
  .notice{margin-bottom:12px}
  .tree-shell,.member-list-shell,.map-shell,.admin-panel{padding:16px}
  .tree-header{gap:12px;margin-bottom:14px}
  .tree-header h2{font-size:23px}
  .tree-header-actions{width:100%;align-items:flex-start}
  .tree-zoom-controls{align-self:flex-end}
  .partner-item{gap:8px}
  .couple.multiple{gap:10px}
  .branch-toggle{min-height:40px;padding:7px 11px 7px 7px;font-size:12px}
  .tree-container{min-height:310px;padding:10px}
  .tree-zoom-layer{padding:16px 42px 48px}
  .tree-container{-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y}
  .member-list{grid-template-columns:1fr}
  .member-list-item{grid-template-columns:52px minmax(0,1fr) auto;gap:10px}
  .member-list-item img{width:52px;height:52px}
  .member-list-place{grid-column:2 / -1;margin-top:-4px}
  .member-list-status{grid-column:3;grid-row:1}
  .family-map{min-height:300px;border-radius:16px}
  .modal-card{width:calc(100% - 16px);max-height:94vh;margin:3vh auto;padding:20px 14px;border-radius:22px}
  .profile .avatar{width:112px;height:112px}
  .profile h3{font-size:25px}
}

@media print{
  .section-nav,.member-list-shell,.map-shell,.admin-panel{display:none!important}
}