/* ============ TỘC PHẢ HỌ NGUYỄN TIẾN - STYLESHEET ============ */
:root{
  --red-deep:#7a0e10;
  --red:#b91c1c;
  --red-light:#dc2626;
  --gold:#d4a017;
  --gold-light:#f5c542;
  --gold-pale:#fdf6e3;
  --cream:#fffaf0;
  --ink:#2a1810;
  --shadow:rgba(122,14,16,.15);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{font-family:'Be Vietnam Pro',sans-serif;color:var(--ink);background:var(--cream);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Cormorant Garamond',serif;font-weight:600}
a{color:var(--red)}

.pattern-bg{
  position:fixed;inset:0;z-index:0;opacity:.04;pointer-events:none;
  background-image:radial-gradient(circle at 20% 30%, var(--red) 0%, transparent 40%),
                   radial-gradient(circle at 80% 70%, var(--gold) 0%, transparent 40%);
}

/* HEADER */
header{
  background:linear-gradient(135deg,var(--red-deep) 0%,var(--red) 50%,var(--red-deep) 100%);
  color:var(--gold-light);padding:1rem 1.5rem;position:sticky;top:0;z-index:100;
  box-shadow:0 4px 20px var(--shadow);border-bottom:3px solid var(--gold);
}
.header-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:.8rem}
.logo svg{width:48px;height:48px;flex-shrink:0}
.logo-text h1{font-size:1.4rem;color:var(--gold-light);letter-spacing:.5px;line-height:1.1}
.logo-text p{font-size:.75rem;color:#fff;opacity:.85;letter-spacing:1px;text-transform:uppercase}
nav{display:flex;gap:.3rem;flex-wrap:wrap}
nav button{
  background:transparent;border:1px solid transparent;color:var(--gold-light);
  padding:.5rem .9rem;border-radius:6px;cursor:pointer;font-size:.85rem;
  font-family:inherit;transition:all .2s;font-weight:500;
}
nav button:hover,nav button.active{background:rgba(255,215,0,.15);border-color:var(--gold)}
.user-area{display:flex;gap:.5rem;align-items:center}
.btn-login{
  background:var(--gold);color:var(--red-deep);border:none;padding:.5rem 1rem;
  border-radius:6px;cursor:pointer;font-weight:600;font-family:inherit;font-size:.85rem;
}
.btn-login:hover{background:var(--gold-light)}

/* HERO */
.hero{
  position:relative;padding:4rem 1.5rem 3rem;
  background:linear-gradient(180deg,var(--gold-pale) 0%,var(--cream) 100%);
  overflow:hidden;border-bottom:2px solid var(--gold);
}
.hero-inner{max-width:1100px;margin:0 auto;position:relative;z-index:2;text-align:center}
.hero-title{
  font-size:clamp(2rem,5vw,3.5rem);color:var(--red-deep);
  margin-bottom:.5rem;font-weight:700;letter-spacing:1px;
  text-shadow:1px 1px 0 var(--gold);
}
.hero-subtitle{font-size:1.1rem;color:var(--red);font-style:italic;margin-bottom:2rem;font-family:'Cormorant Garamond',serif}
.intro-card{
  background:#fff;border:2px solid var(--gold);border-radius:12px;
  padding:1.8rem;max-width:780px;margin:0 auto;
  box-shadow:0 8px 30px var(--shadow);position:relative;
}
.intro-card::before,.intro-card::after{
  content:'';position:absolute;width:30px;height:30px;border:3px solid var(--red);
}
.intro-card::before{top:-2px;left:-2px;border-right:none;border-bottom:none}
.intro-card::after{bottom:-2px;right:-2px;border-left:none;border-top:none}
#introText{font-size:1.05rem;color:var(--ink);white-space:pre-wrap;text-align:justify}
.edit-intro{
  position:absolute;top:.6rem;right:.6rem;font-size:.75rem;background:var(--gold);
  border:none;padding:.3rem .6rem;border-radius:4px;cursor:pointer;display:none;font-family:inherit;
}
.admin-mode .edit-intro{display:block}
.hero-ornament{position:absolute;font-size:5rem;opacity:.1;color:var(--red)}
.hero-ornament.left{top:20%;left:5%}
.hero-ornament.right{top:30%;right:5%}

/* SEARCH */
.search-section{padding:2.5rem 1.5rem;background:#fff}
.search-inner{max-width:700px;margin:0 auto}
.search-box{position:relative;display:flex;gap:.5rem}
.search-box input{
  flex:1;padding:.9rem 1.2rem;border:2px solid var(--gold);border-radius:30px;
  font-size:1rem;font-family:inherit;outline:none;background:var(--cream);
}
.search-box input:focus{border-color:var(--red)}
.search-box button{
  padding:.9rem 1.5rem;background:var(--red);color:#fff;border:none;
  border-radius:30px;cursor:pointer;font-weight:600;font-family:inherit;
}
.search-results{margin-top:1rem;max-height:340px;overflow-y:auto}
.search-result-item{
  padding:.8rem 1rem;background:var(--gold-pale);border-left:3px solid var(--gold);
  margin-bottom:.4rem;border-radius:4px;cursor:pointer;
}
.search-result-item:hover{background:#fff;border-left-color:var(--red)}
.search-result-item strong{color:var(--red-deep)}
.search-result-item small{color:#666;display:block;font-size:.8rem}

/* CONTENT SECTIONS */
section.content-section{padding:3rem 1.5rem;max-width:1200px;margin:0 auto;position:relative;z-index:2}
.section-title{
  text-align:center;font-size:2.2rem;color:var(--red-deep);margin-bottom:.5rem;
  display:block;width:100%;
}
.section-title::after{
  content:'';display:block;width:80px;height:3px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  margin:.5rem auto 1rem;
}
.section-subtitle{text-align:center;color:#666;margin-bottom:2.5rem;font-style:italic}

/* FAMILY TREE */
.tree-display{
  background:linear-gradient(180deg,#fff 0%,var(--gold-pale) 100%);
  border:2px solid var(--gold);border-radius:16px;
  padding:2rem 1rem;box-shadow:0 8px 30px var(--shadow);overflow-x:auto;
}
.tree-tier{display:flex;justify-content:center;flex-wrap:wrap;gap:1rem;margin-bottom:2rem;position:relative}
.tree-tier:last-child{margin-bottom:0}
.tree-node{
  background:#fff;border:2px solid var(--red);border-radius:10px;
  padding:.9rem 1.2rem;min-width:160px;max-width:220px;text-align:center;
  cursor:pointer;transition:all .3s;position:relative;
  box-shadow:0 4px 12px rgba(122,14,16,.1);
}
.tree-node:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(122,14,16,.2)}
.tree-node.founder{
  background:linear-gradient(135deg,var(--red-deep),var(--red));color:#fff;
  border-color:var(--gold);min-width:280px;
}
.tree-node.founder .node-name{color:var(--gold-light)}
.tree-node.founder .node-title{color:#fff}
.tree-node.branch{background:linear-gradient(135deg,var(--gold),var(--gold-light));border-color:var(--red)}
.node-title{font-size:.7rem;text-transform:uppercase;letter-spacing:1px;color:var(--red);margin-bottom:.2rem;font-weight:600}
.node-name{font-family:'Cormorant Garamond',serif;font-size:1.1rem;font-weight:600;color:var(--red-deep);margin-bottom:.2rem}
.node-info{font-size:.75rem;color:#666}
.tree-node.founder .node-info{color:rgba(255,255,255,.85)}
.node-spouse{font-size:.75rem;color:#888;margin-top:.3rem;font-style:italic}
.tree-connector{height:30px;width:2px;background:var(--red);margin:0 auto}

.tree-actions{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap;margin-top:1.5rem}

/* BUTTONS */
.btn{
  padding:.6rem 1.2rem;border:none;border-radius:6px;cursor:pointer;
  font-weight:600;font-family:inherit;font-size:.85rem;transition:all .2s;
}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-deep)}
.btn-gold{background:var(--gold);color:var(--red-deep)}
.btn-gold:hover{background:var(--gold-light)}
.btn-outline{background:transparent;border:2px solid var(--red);color:var(--red)}
.btn-outline:hover{background:var(--red);color:#fff}
.btn-link{background:transparent;border:none;color:var(--red);text-decoration:underline;cursor:pointer;font-family:inherit}

/* ACTIVITIES */
.activities-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.2rem}
.activity-card{
  background:#fff;border-radius:12px;overflow:hidden;cursor:pointer;
  box-shadow:0 6px 20px var(--shadow);transition:all .3s;
  border:1px solid rgba(212,160,23,.3);
}
.activity-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px var(--shadow)}
.activity-icon{
  height:130px;background:linear-gradient(135deg,var(--red) 0%,var(--red-deep) 100%);
  display:flex;align-items:center;justify-content:center;
  color:var(--gold-light);font-size:3.5rem;position:relative;
}
.activity-icon::after{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(circle, transparent 30%, rgba(0,0,0,.3) 100%);
}
.activity-body{padding:1.2rem}
.activity-body h3{color:var(--red-deep);font-size:1.3rem;margin-bottom:.4rem}
.activity-body p{color:#666;font-size:.9rem;margin-bottom:.6rem}
.activity-meta{font-size:.75rem;color:var(--gold);font-weight:600}

/* GALLERY */
.gallery{
  background:linear-gradient(180deg,#fff 0%,var(--gold-pale) 100%);
  border-radius:16px;padding:1.5rem;border:2px solid var(--gold);
}
.slideshow{position:relative;border-radius:10px;overflow:hidden;height:380px;background:#000}
.slide{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .8s;background-size:cover;background-position:center;
}
.slide.active{opacity:1}
.slide-caption{
  position:absolute;bottom:0;left:0;right:0;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.8));
  color:#fff;padding:2rem 1.5rem 1rem;font-size:.95rem;
}
.slide-controls{
  position:absolute;top:50%;width:100%;display:flex;justify-content:space-between;
  padding:0 1rem;transform:translateY(-50%);pointer-events:none;
}
.slide-controls button{
  pointer-events:auto;background:rgba(0,0,0,.5);color:#fff;border:none;
  width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:1.2rem;
}
.slide-dots{position:absolute;bottom:.5rem;left:50%;transform:translateX(-50%);display:flex;gap:.4rem;z-index:2}
.slide-dots span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer}
.slide-dots span.active{background:var(--gold)}

/* FUND */
.fund-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-bottom:1.5rem}
.fund-stat{
  background:linear-gradient(135deg,#fff 0%,var(--gold-pale) 100%);
  padding:1.3rem;border-radius:10px;border-left:4px solid var(--gold);
  box-shadow:0 4px 12px var(--shadow);
}
.fund-stat.income{border-left-color:#16a34a}
.fund-stat.expense{border-left-color:var(--red)}
.fund-stat.balance{border-left-color:var(--gold);background:linear-gradient(135deg,var(--gold-pale) 0%,#fff 100%)}
.fund-stat .label{font-size:.8rem;color:#666;text-transform:uppercase;letter-spacing:1px}
.fund-stat .value{font-size:1.5rem;font-weight:700;color:var(--red-deep);margin-top:.3rem;font-family:'Cormorant Garamond',serif}
.fund-tabs{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:1rem;border-bottom:2px solid var(--gold)}
.fund-tab{
  padding:.6rem 1rem;cursor:pointer;background:none;border:none;
  color:#666;font-family:inherit;font-weight:600;font-size:.9rem;
  border-bottom:3px solid transparent;margin-bottom:-2px;
}
.fund-tab.active{color:var(--red-deep);border-bottom-color:var(--red)}
.fund-table{width:100%;border-collapse:collapse;font-size:.9rem;background:#fff;border-radius:8px;overflow:hidden}
.fund-table th{background:var(--red-deep);color:var(--gold-light);padding:.7rem;text-align:left;font-weight:600}
.fund-table td{padding:.6rem .7rem;border-bottom:1px solid #eee}
.fund-table tr:hover{background:var(--gold-pale)}
.bank-info{
  background:linear-gradient(135deg,var(--red-deep),var(--red));color:#fff;
  padding:1.5rem;border-radius:10px;margin-bottom:1rem;border:2px solid var(--gold);
}
.bank-info h3{color:var(--gold-light);margin-bottom:.5rem}
.bank-info p{margin:.3rem 0;font-family:monospace;font-size:1.05rem}

/* FOOTER */
footer{
  background:linear-gradient(180deg,var(--red-deep) 0%,#5a0a0c 100%);
  color:var(--gold-light);padding:2.5rem 1.5rem 1.5rem;margin-top:3rem;
  border-top:4px solid var(--gold);text-align:center;
}
footer h3{color:var(--gold-light);font-size:1.3rem;margin-bottom:.6rem}
footer p{font-size:.9rem;margin:.3rem 0;color:#fff;opacity:.9}
footer .contact{margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(255,215,0,.3)}
footer a{color:var(--gold-light);text-decoration:none;font-weight:600}

/* MODALS */
.modal-bg{
  position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:1000;
  display:none;align-items:flex-start;justify-content:center;
  padding:2rem 1rem;overflow-y:auto;
}
.modal-bg.active{display:flex}
.modal{
  background:#fff;border-radius:14px;max-width:700px;width:100%;
  box-shadow:0 20px 60px rgba(0,0,0,.4);border:3px solid var(--gold);
  position:relative;margin:auto;
}
.modal-header{
  background:linear-gradient(135deg,var(--red-deep),var(--red));
  color:var(--gold-light);padding:1rem 1.5rem;
  border-radius:10px 10px 0 0;display:flex;
  justify-content:space-between;align-items:center;
}
.modal-header h2{color:var(--gold-light);font-size:1.4rem}
.close-btn{background:transparent;border:none;color:var(--gold-light);font-size:1.8rem;cursor:pointer;line-height:1}
.modal-body{padding:1.5rem;max-height:75vh;overflow-y:auto}

/* FORMS */
.form-group{margin-bottom:1rem}
.form-group label{display:block;margin-bottom:.3rem;font-weight:600;color:var(--red-deep);font-size:.9rem}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:.7rem .9rem;border:2px solid #ddd;border-radius:6px;
  font-family:inherit;font-size:.95rem;outline:none;background:#fff;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--gold)}
.form-group textarea{resize:vertical;min-height:80px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:520px){.form-row{grid-template-columns:1fr}}
.form-actions{display:flex;gap:.6rem;justify-content:flex-end;margin-top:1rem;flex-wrap:wrap}

/* ADMIN */
.admin-tabs{display:flex;gap:.3rem;flex-wrap:wrap;border-bottom:2px solid var(--gold);margin-bottom:1rem;overflow-x:auto}
.admin-tab{
  padding:.6rem 1rem;cursor:pointer;background:none;border:none;
  color:#666;font-family:inherit;font-weight:600;font-size:.85rem;
  border-bottom:3px solid transparent;margin-bottom:-2px;white-space:nowrap;
}
.admin-tab.active{color:var(--red-deep);border-bottom-color:var(--red)}
.person-list{display:grid;gap:.5rem;max-height:400px;overflow-y:auto}
.person-item{
  display:flex;justify-content:space-between;align-items:center;
  padding:.6rem .9rem;background:var(--gold-pale);border-left:3px solid var(--gold);
  border-radius:4px;gap:.5rem;
}
.person-item-info{flex:1;min-width:0}
.person-item-info strong{color:var(--red-deep)}
.person-item-info small{display:block;color:#666;font-size:.78rem}
.person-item-actions{display:flex;gap:.3rem;flex-shrink:0}
.icon-btn{background:transparent;border:1px solid var(--red);color:var(--red);padding:.3rem .6rem;border-radius:4px;cursor:pointer;font-size:.75rem;font-family:inherit}
.icon-btn:hover{background:var(--red);color:#fff}
.badge{background:var(--red);color:#fff;border-radius:10px;padding:0 .5rem;font-size:.7rem;margin-left:.3rem}

/* PERSON DETAIL */
.person-detail{display:grid;grid-template-columns:auto 1fr;gap:1.5rem;align-items:start}
@media(max-width:520px){.person-detail{grid-template-columns:1fr}}
.person-photo{
  width:140px;height:170px;border-radius:8px;background:var(--gold-pale);
  border:3px solid var(--gold);display:flex;align-items:center;justify-content:center;
  color:var(--red);font-size:3rem;overflow:hidden;
}
.person-photo img{width:100%;height:100%;object-fit:cover}
.person-info h3{color:var(--red-deep);margin-bottom:.4rem}
.person-info .meta{color:#666;font-size:.9rem;margin-bottom:.8rem}
.person-info .bio{font-size:.95rem;line-height:1.7;margin-top:.8rem;padding-top:.8rem;border-top:1px solid var(--gold)}
.relations{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--gold)}
.relations h4{color:var(--red);font-size:1rem;margin-bottom:.4rem}
.relations p{font-size:.9rem;margin:.2rem 0}

/* TREE VIEWER (nested) */
.tree-viewer{padding:1rem;overflow-x:auto;background:var(--gold-pale);border-radius:8px}
.tree-branch{margin-left:1.5rem;border-left:2px solid var(--gold);padding-left:1rem;position:relative}
.tree-branch::before{
  content:'';position:absolute;left:-2px;top:.7rem;width:.8rem;height:2px;background:var(--gold);
}
.tree-person{
  background:#fff;padding:.5rem .8rem;margin:.4rem 0;border-radius:6px;
  border-left:3px solid var(--red);cursor:pointer;display:inline-block;font-size:.9rem;
}
.tree-person:hover{background:var(--gold-pale)}
.tree-person strong{color:var(--red-deep)}
.tree-person small{color:#666;margin-left:.3rem}

/* ARTICLES */
.articles-list{display:grid;gap:.8rem}
.article-item{
  background:#fff;padding:1rem;border-radius:8px;border-left:4px solid var(--gold);
  box-shadow:0 2px 8px rgba(0,0,0,.05);
}
.article-item h4{color:var(--red-deep);margin-bottom:.3rem}
.article-item .date{font-size:.8rem;color:#888;margin-bottom:.5rem}
.article-item p{font-size:.9rem;color:#444;white-space:pre-wrap}
.article-images{display:flex;gap:.4rem;margin-top:.5rem;flex-wrap:wrap}
.article-images img{width:90px;height:90px;object-fit:cover;border-radius:4px;border:1px solid var(--gold);cursor:pointer}

.alert{padding:.8rem 1rem;border-radius:6px;margin-bottom:1rem;font-size:.9rem}
.alert-success{background:#dcfce7;color:#166534;border-left:3px solid #16a34a}
.alert-warn{background:#fef3c7;color:#92400e;border-left:3px solid #d97706}
.alert-info{background:var(--gold-pale);color:var(--red-deep);border-left:3px solid var(--gold)}
.alert-error{background:#fee2e2;color:#991b1b;border-left:3px solid #dc2626}

.empty{text-align:center;padding:2rem;color:#888;font-style:italic}

/* TOAST */
.toast{
  position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);
  background:var(--ink);color:#fff;padding:.8rem 1.5rem;border-radius:30px;
  z-index:2000;opacity:0;transition:all .3s;font-size:.9rem;box-shadow:0 4px 20px rgba(0,0,0,.3);
  pointer-events:none;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.error{background:var(--red)}
.toast.success{background:#16a34a}

/* RESPONSIVE */
@media(max-width:600px){
  .header-inner{flex-direction:column;align-items:flex-start}
  nav{width:100%;justify-content:flex-start;overflow-x:auto}
  .hero{padding:2.5rem 1rem 2rem}
  section.content-section{padding:2rem 1rem}
  .tree-node{min-width:140px;max-width:180px;padding:.7rem .9rem}
  .tree-node.founder{min-width:240px}
  .slideshow{height:240px}
  .modal-body{padding:1rem}
}

/* PRINT */
@media print{
  header,nav,.user-area,.search-section,footer,.tree-actions,.modal-bg{display:none !important}
  body{background:#fff}
}