:root{
  --wood:#5C3A1E;        /* nâu gỗ đậm - màu chủ đạo mới */
  --wood-mid:#8B5E3C;    /* nâu gỗ giữa */
  --wood-light:#b07b43;  /* nâu gỗ sáng */
  --cream:#faf6f0;       /* kem nền */
  --ink:#2c2620;         /* chữ đậm */
  --accent:#3f6b52;      /* xanh rêu nhấn */
  --soft:#ede3d6;
  --wood-dark:#3d2510;   /* nâu cực đậm */
}
*{font-family:'Be Vietnam Pro',system-ui,sans-serif;}
body{color:var(--ink);background:#fff;}
.text-muted-2{color:#9b8e7d!important;}

/* ---------- TOP BAR ---------- */
.top-bar{background:var(--wood);color:#f5ede3;font-size:.82rem;}
.top-bar-phone{color:#f5ede3;text-decoration:none;font-weight:700;letter-spacing:.3px;}
.top-bar-phone:hover{color:#fff;}

/* ---------- NAV ---------- */
.navbar-brand{font-size:1.25rem;letter-spacing:-.3px;color:var(--wood);}
.navbar-brand .text-muted-2{font-weight:500;font-size:.85rem;}
.brand-dot{display:inline-block;width:11px;height:11px;border-radius:50%;
  background:var(--wood-mid);margin-right:4px;vertical-align:middle;}
.nav-link{font-weight:500;color:var(--ink);}
.nav-link:hover{color:var(--wood);}
.dropdown-item:hover{background:var(--soft);color:var(--wood);}

/* ---------- BUTTONS ---------- */
.btn-primary{background:var(--wood);border-color:var(--wood);font-weight:600;}
.btn-primary:hover{background:var(--wood-dark);border-color:var(--wood-dark);}
.btn-outline-primary{color:var(--wood);border-color:var(--wood);}
.btn-outline-primary:hover{background:var(--wood);border-color:var(--wood);color:#fff;}

/* ---------- HERO BANNER FULL WIDTH ---------- */
.hero-banner{position:relative;height:580px;display:flex;align-items:center;overflow:hidden;}
.hero-bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(44,23,6,.78) 0%,rgba(92,58,30,.55) 60%,rgba(44,23,6,.35) 100%);z-index:1;}
.hero-content{position:relative;z-index:2;}
.hero-title{font-weight:800;font-size:2.8rem;line-height:1.12;letter-spacing:-1px;color:#fff;text-shadow:0 2px 16px rgba(0,0,0,.5);}
.hero-sub{font-size:1.12rem;color:rgba(255,255,255,.9);text-shadow:0 1px 8px rgba(0,0,0,.4);}
.hero-badges span{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);
  border-radius:999px;padding:5px 14px;font-size:.82rem;font-weight:600;color:#fff;margin:0 5px 0 0;backdrop-filter:blur(4px);}

/* ---------- HERO PREMIUM (2 cột: nội dung + lưới ảnh) ---------- */
.hero-premium{
  background:linear-gradient(135deg,var(--cream) 0%,#fff 55%,#f3ece2 100%);
  padding:64px 0 72px;overflow:hidden;position:relative;}
.hero-container{
  max-width:1200px;margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.hero-content-col .company-badge{
  display:inline-block;background:var(--wood);color:#fff;font-weight:600;
  font-size:.8rem;letter-spacing:.3px;padding:7px 16px;border-radius:999px;margin-bottom:22px;
  box-shadow:0 6px 18px rgba(92,58,30,.22);}
.hero-content-col h1{
  font-weight:800;font-size:2.75rem;line-height:1.14;letter-spacing:-1px;
  color:var(--wood-dark);margin-bottom:20px;}
.hero-content-col p{
  font-size:1.1rem;line-height:1.7;color:#5b5147;margin-bottom:30px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-btn-primary,.hero-btn-secondary{
  display:inline-block;font-weight:700;font-size:1rem;padding:15px 30px;border-radius:12px;
  text-decoration:none;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;}
.hero-btn-primary{
  background:var(--wood);color:#fff;box-shadow:0 10px 26px rgba(92,58,30,.28);}
.hero-btn-primary:hover{background:var(--wood-dark);transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(92,58,30,.36);color:#fff;}
.hero-btn-secondary{
  background:#fff;color:var(--wood);border:1.5px solid var(--wood-light);}
.hero-btn-secondary:hover{background:var(--wood);color:#fff;border-color:var(--wood);transform:translateY(-2px);}

/* Lưới ảnh showcase */
.hero-visual-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:16px;height:460px;}
.hero-visual-grid .grid-item{
  position:relative;border-radius:18px;overflow:hidden;
  box-shadow:0 16px 40px rgba(44,23,6,.16);}
.hero-visual-grid .grid-item.large{height:100%;}
.hero-visual-grid .grid-item-sub{display:grid;grid-template-rows:1fr 1fr;gap:16px;height:100%;}
.hero-visual-grid .grid-item img{
  width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease;}
.hero-visual-grid .grid-item:hover img{transform:scale(1.06);}
.hero-visual-grid .img-caption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;
  background:linear-gradient(to top,rgba(30,18,8,.82),transparent);
  color:#fff;font-size:.82rem;font-weight:600;line-height:1.3;}
.hero-visual-grid .grid-item.small .img-caption{font-size:.76rem;padding:20px 12px 10px;}

@media (max-width:991px){
  .hero-premium{padding:40px 0 48px;}
  .hero-container{grid-template-columns:1fr;gap:36px;}
  .hero-content-col h1{font-size:2.1rem;}
  .hero-content-col p{font-size:1.02rem;}
  .hero-visual-grid{height:340px;}
}
@media (max-width:575px){
  .hero-visual-grid{grid-template-columns:1fr;height:auto;}
  .hero-visual-grid .grid-item.large{height:220px;}
  .hero-visual-grid .grid-item-sub{grid-template-rows:none;grid-template-columns:1fr 1fr;height:150px;}
  .hero-actions{flex-direction:column;}
  .hero-btn-primary,.hero-btn-secondary{text-align:center;}
}

/* ---------- SECTIONS ---------- */
.section-title{font-weight:700;letter-spacing:-.5px;color:var(--wood-dark);}
.eyebrow{color:var(--wood-mid);font-weight:700;text-transform:uppercase;
  letter-spacing:1.5px;font-size:.75rem;margin-bottom:2px;}
.bg-cream{background:var(--cream);}
.cat-section{}
.cat-header{}

/* ---------- CARDS ---------- */
.proj-card{border:1px solid var(--soft);border-radius:14px;overflow:hidden;
  background:#fff;transition:all .22s;height:100%;display:flex;flex-direction:column;
  box-shadow:0 2px 8px rgba(92,58,30,.06);}
.proj-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px -18px rgba(92,58,30,.45);}
.proj-card:hover .proj-thumb{transform:scale(1.04);}
.proj-thumb-wrap{overflow:hidden;aspect-ratio:4/3;}
.proj-thumb{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease;}
.proj-ph{aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;
  text-align:center;color:#fff;font-weight:700;padding:10px;
  background:linear-gradient(135deg,var(--wood-mid),var(--wood));}
.proj-ph.alt{background:linear-gradient(135deg,#5a7c66,var(--accent));}
.proj-body{padding:14px 16px 16px;flex:1;display:flex;flex-direction:column;}
.chip{display:inline-block;font-size:.72rem;font-weight:600;padding:3px 9px;
  border-radius:999px;background:var(--soft);color:var(--wood);margin:0 4px 4px 0;}
.chip.mat{background:#e3ede6;color:var(--accent);}

/* Label danh mục góc trên ảnh */
.proj-thumb-wrap{position:relative;}
.cat-label{position:absolute;top:10px;left:10px;z-index:2;
  background:var(--wood);color:#fff;font-size:.7rem;font-weight:700;
  padding:3px 10px;border-radius:999px;letter-spacing:.5px;}

/* ---------- FILTER ---------- */
.filter-pill{border:1px solid var(--soft);background:#fff;color:var(--ink);
  border-radius:999px;padding:6px 16px;font-size:.88rem;font-weight:500;
  text-decoration:none;display:inline-block;margin:0 6px 8px 0;}
.filter-pill.active,.filter-pill:hover{background:var(--wood);color:#fff;border-color:var(--wood);}

/* ---------- LEAD FORM ---------- */
.lead-section{background:linear-gradient(120deg,var(--soft),#ece0cf);}
.lead-card{background:#fff;border-radius:22px;box-shadow:0 30px 60px -28px rgba(92,58,30,.4);}
.tick-list{list-style:none;padding-left:0;}
.tick-list li{position:relative;padding-left:24px;margin-bottom:6px;}
.tick-list li:before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:800;}

/* ---------- WHY / FEATURES ---------- */
.why-card{background:var(--cream);border-radius:14px;padding:20px;text-align:center;}
.why-ic{width:46px;height:46px;border-radius:12px;background:var(--wood);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:4px;}

/* ---------- PROJECT DETAIL GALLERY (full-screen lướt mẫu) ---------- */
.proj-gallery-main{position:relative;width:100%;aspect-ratio:16/9;max-height:640px;
  border-radius:18px;overflow:hidden;background:#111;cursor:zoom-in;margin:0 auto;}
.proj-gallery-main img{width:100%;height:100%;object-fit:cover;object-position:center;display:block;}
.proj-nav{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;
  border-radius:50%;border:none;background:rgba(20,14,8,.45);color:#fff;font-size:1.6rem;
  line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s;}
.proj-nav:hover{background:rgba(20,14,8,.75);}
.proj-nav.prev{left:16px;}
.proj-nav.next{right:16px;}
.proj-counter{position:absolute;right:16px;bottom:14px;background:rgba(20,14,8,.55);
  color:#fff;font-size:.8rem;font-weight:600;padding:4px 10px;border-radius:999px;}
.proj-expand{position:absolute;left:16px;bottom:14px;background:rgba(20,14,8,.55);
  color:#fff;font-size:.78rem;font-weight:600;padding:5px 12px;border-radius:999px;}
.proj-thumbs{display:flex;gap:10px;overflow-x:auto;padding:12px 2px 4px;scrollbar-width:thin;}
.proj-thumb-item{width:92px;height:68px;flex:0 0 auto;object-fit:cover;border-radius:10px;
  cursor:pointer;border:2px solid transparent;opacity:.65;transition:all .2s;}
.proj-thumb-item:hover{opacity:1;}
.proj-thumb-item.active{opacity:1;border-color:var(--wood);}
.proj-info{max-width:820px;}
.proj-cta{max-width:820px;margin-left:auto;margin-right:auto;padding:32px 24px;
  background:linear-gradient(120deg,var(--soft),#ece0cf);border-radius:18px;
  box-shadow:0 20px 44px -24px rgba(92,58,30,.4);}
.proj-cta .btn{box-shadow:0 12px 26px -10px rgba(92,58,30,.5);}

/* Breadcrumb tinh gọn, cao cấp */
.proj-breadcrumb-sec{border-bottom:1px solid var(--soft);}
.proj-breadcrumb{--bs-breadcrumb-divider:'/';font-size:.82rem;}
.proj-breadcrumb .breadcrumb-item a{color:var(--wood-mid);text-decoration:none;}
.proj-breadcrumb .breadcrumb-item a:hover{color:var(--wood);text-decoration:underline;}
.proj-breadcrumb .breadcrumb-item.active{color:var(--ink);font-weight:600;}

/* Tiêu đề & mô tả kiểu cao cấp */
.proj-h1{font-size:clamp(1.6rem,3vw,2.1rem);font-weight:800;letter-spacing:-.4px;color:var(--wood-dark);}
.proj-h1-rule{width:56px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--wood-light),var(--wood));margin-bottom:14px;}
.proj-lead{color:var(--ink);font-weight:600;font-size:1.08rem;}
.proj-desc{color:#57493a;line-height:1.8;font-size:1rem;}
.proj-quickcta{margin-top:18px;padding-top:16px;border-top:1px dashed var(--soft);}

/* Progress bar (story-style) tự lướt ảnh */
.proj-progress{position:absolute;top:12px;left:12px;right:12px;z-index:4;display:flex;gap:6px;}
.proj-progress-bar{flex:1;height:3px;border-radius:3px;background:rgba(255,255,255,.35);overflow:hidden;}
.proj-progress-bar i{display:block;height:100%;width:0;background:#fff;border-radius:3px;}
.proj-progress-bar.done i{width:100%;}
.proj-progress-bar.active i{animation:projFill 4.2s linear forwards;}
@keyframes projFill{from{width:0}to{width:100%}}

/* Overlay tiêu đề trên ảnh chính */
.proj-title-overlay{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:40px 20px 18px;
  background:linear-gradient(to top,rgba(20,13,7,.78),transparent);color:#fff;pointer-events:none;}
.proj-title-overlay h2{font-size:1.3rem;font-weight:800;margin:0 0 4px;text-shadow:0 2px 10px rgba(0,0,0,.5);}
.proj-title-overlay span{font-size:.85rem;opacity:.9;}

/* Dải cam kết dưới mô tả */
.proj-trust{margin-top:22px;padding-top:22px;border-top:1px solid var(--soft);}
.proj-trust-ic{width:44px;height:44px;margin:0 auto 8px;border-radius:50%;background:var(--cream);
  border:1px solid var(--soft);display:flex;align-items:center;justify-content:center;font-size:1.25rem;}
.proj-trust-txt{font-size:.8rem;font-weight:600;color:var(--ink);line-height:1.3;}
@media (max-width:767px){
  .proj-gallery-main{aspect-ratio:4/3;max-height:460px;border-radius:12px;}
  .proj-nav{width:38px;height:38px;font-size:1.3rem;}
}

/* Quy trình thực hiện */
.proj-process{margin-top:22px;padding-top:22px;border-top:1px solid var(--soft);}
.proj-process-title{font-weight:800;color:var(--wood-dark);font-size:1.05rem;margin-bottom:16px;}
.proj-process-steps{display:flex;flex-wrap:wrap;gap:14px;}
.proj-process-step{flex:1 1 200px;background:var(--cream);border:1px solid var(--soft);border-radius:12px;padding:16px;}
.proj-process-num{width:28px;height:28px;border-radius:50%;background:var(--wood);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:.8rem;margin-bottom:10px;}
.proj-process-step h4{font-size:.86rem;font-weight:700;color:var(--ink);margin-bottom:4px;}
.proj-process-step p{font-size:.78rem;color:#6b5c4a;margin:0;line-height:1.5;}

/* CTA dính đáy màn hình trên mobile — để lại SĐT dễ hơn khi lướt */
.proj-sticky-cta{display:none;}
.proj-sticky-spacer{display:none;}
@media (max-width:767px){
  .proj-sticky-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;
    background:#fff;box-shadow:0 -8px 24px -12px rgba(20,14,8,.25);padding:10px 14px;gap:10px;}
  .proj-sticky-cta .btn{flex:1;}
  .proj-sticky-spacer{display:block;height:64px;}
}

/* Thumbnail wrapper + "xem thêm ảnh" */
.proj-thumb-wrap-item{position:relative;flex:0 0 auto;width:92px;height:68px;cursor:pointer;}
.proj-thumb-wrap-item .proj-thumb-item{width:100%;height:100%;}
.proj-thumb-more{position:absolute;inset:0;background:rgba(20,14,8,.6);color:#fff;
  font-size:.72rem;font-weight:700;border-radius:10px;display:flex;align-items:center;justify-content:center;text-align:center;}
.proj-thumb-viewall{flex:0 0 auto;height:68px;padding:0 16px;border-radius:10px;white-space:nowrap;
  background:var(--cream);border:1px solid var(--soft);color:var(--wood);font-weight:700;font-size:.82rem;}
.proj-thumb-viewall:hover{background:var(--wood);color:#fff;border-color:var(--wood);}

/* Lightbox full màn hình */
.proj-lightbox{display:none;position:fixed;inset:0;background:rgba(10,7,4,.94);
  z-index:2000;align-items:center;justify-content:center;}
.proj-lightbox.open{display:flex;}
.proj-lightbox img{max-width:92vw;max-height:88vh;object-fit:contain;border-radius:8px;}
.proj-lightbox-close{position:absolute;top:18px;right:22px;background:none;border:none;
  color:#fff;font-size:1.8rem;cursor:pointer;line-height:1;}
.proj-lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);width:54px;height:54px;
  border-radius:50%;border:none;background:rgba(255,255,255,.12);color:#fff;font-size:2rem;
  display:flex;align-items:center;justify-content:center;cursor:pointer;}
.proj-lightbox-nav:hover{background:rgba(255,255,255,.25);}
.proj-lightbox-nav.prev{left:18px;}
.proj-lightbox-nav.next{right:18px;}
.proj-lightbox-counter{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);
  color:#fff;font-size:.85rem;font-weight:600;background:rgba(255,255,255,.15);
  padding:5px 14px;border-radius:999px;}

/* ---------- ARTICLE ---------- */
.article-body{font-size:1.06rem;line-height:1.75;}
.article-body h3{margin-top:1.6rem;font-weight:700;color:var(--wood);}
.article-body ul,.article-body ol{padding-left:1.2rem;}
.prose-cover{border-radius:16px;}

/* ---------- FOOTER ---------- */
.footer{background:var(--wood-dark);color:#e9e1d6;}
.footer h5,.footer h6{color:#fff;}
.footer-link{display:block;color:#cdbfae;text-decoration:none;font-size:.9rem;margin-bottom:4px;}
.footer-link:hover{color:#fff;}

/* ---------- FAB ZALO ---------- */
.fab-zalo{position:fixed;right:18px;bottom:18px;z-index:1050;
  width:62px;height:62px;border-radius:50%;background:#0068ff;color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;
  text-decoration:none;box-shadow:0 10px 24px -6px rgba(0,104,255,.6);
  animation:pulse 2s infinite;}
.fab-zalo:hover{color:#fff;transform:scale(1.06);}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(0,104,255,.5);}70%{box-shadow:0 0 0 16px rgba(0,104,255,0);}100%{box-shadow:0 0 0 0 rgba(0,104,255,0);}}

/* ---------- ADMIN SIDEBAR ---------- */
.admin-sidebar{min-height:100vh;background:var(--wood-dark);width:220px;flex-shrink:0;}
.admin-sidebar .nav-link{color:#cdbfae;padding:.55rem 1.2rem;border-radius:8px;font-weight:500;}
.admin-sidebar .nav-link:hover,.admin-sidebar .nav-link.active{background:rgba(255,255,255,.12);color:#fff;}
.admin-sidebar .nav-link svg,.admin-sidebar .nav-link .icon{margin-right:8px;}
.admin-main{flex:1;min-width:0;}
.admin-topbar{background:#fff;border-bottom:1px solid var(--soft);padding:.7rem 1.5rem;
  font-weight:600;color:var(--wood);}
.stat-card{border:1px solid var(--soft);border-radius:14px;padding:20px;background:#fff;
  box-shadow:0 2px 8px rgba(92,58,30,.06);}
.stat-card .stat-num{font-size:2rem;font-weight:800;color:var(--wood);}
.stat-card .stat-label{color:#9b8e7d;font-size:.88rem;}

@media(max-width:768px){
  .hero-banner{height:420px;}
  .hero-title{font-size:2rem;}
  .hero-sub{font-size:1rem;}
  .admin-sidebar{width:100%;min-height:auto;}
}