/* THEME: Vườn Xanh — Cream 60% / Pine 30% / Bronze 10% */
:root{--primary:#1E3A27;--primary-dark:#152A1D;--primary-light:#2B4F38;--accent:#D4A373;--accent-dark:#B8925F;--bg:#F4F6F0;--bg-soft:#EDEFE4;--surface:#fff;--text:#1E3A27;--muted:#5A6E5E;--border:#DDE2D4;--radius:14px;--shadow:0 10px 30px -10px rgba(30,58,39,.12);--shadow-lg:0 25px 50px -12px rgba(30,58,39,.18);--container:1200px;--header-h:72px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-dark)}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(244,246,240,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo img{height:40px;width:auto}
.logo a{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:-.02em}
.main-nav ul{display:flex;gap:6px;list-style:none}
.main-nav a{padding:10px 16px;border-radius:8px;font-weight:500;color:var(--text);font-size:15px;transition:.2s}
.main-nav a:hover,.main-nav a.active{background:var(--primary);color:#fff}
.nav-toggle{display:none;background:none;border:0;font-size:26px;cursor:pointer;padding:8px;color:var(--primary)}
@media(max-width:900px){.nav-toggle{display:block}.main-nav{position:fixed;top:var(--header-h);left:0;right:0;background:var(--surface);transform:translateY(-120%);opacity:0;visibility:hidden;transition:.3s;box-shadow:var(--shadow-lg);max-height:calc(100vh - var(--header-h));overflow-y:auto;border-bottom:1px solid var(--border)}.main-nav.open{transform:translateY(0);opacity:1;visibility:visible}.main-nav ul{flex-direction:column;padding:16px;gap:4px}.main-nav a{display:block;padding:14px 20px}}
.hero-slider{position:relative;height:520px;overflow:hidden;background:var(--primary-dark)}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s;background-size:cover;background-position:center}
.slide.active{opacity:1}
.slide::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(21,42,29,.9),rgba(30,58,39,.55))}
.slide-content{position:relative;z-index:2;max-width:720px;color:#fff}
.slide-content h1{font-size:clamp(32px,5vw,60px);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin-bottom:24px;text-shadow:0 2px 20px rgba(0,0,0,.25)}
.slide-prev,.slide-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(212,163,115,.85);color:#fff;border:0;width:48px;height:48px;border-radius:50%;font-size:22px;cursor:pointer;z-index:5;transition:.2s}
.slide-prev:hover,.slide-next:hover{background:var(--accent)}
.slide-prev{left:20px}.slide-next{right:20px}
.slide-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.slide-dots button{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer;transition:.2s;padding:0}
.slide-dots button.active{background:var(--accent);width:28px;border-radius:5px}
.btn{display:inline-block;padding:14px 32px;border-radius:10px;font-weight:600;transition:.2s;cursor:pointer;border:0;font-size:15px;background:var(--accent);color:#fff;box-shadow:0 10px 30px -10px rgba(212,163,115,.55);text-decoration:none}
.btn:hover{background:var(--accent-dark);transform:translateY(-2px);color:#fff}
.btn-primary{background:var(--primary);box-shadow:0 10px 30px -10px rgba(30,58,39,.5)}
.btn-primary:hover{background:var(--primary-dark)}
.btn-light{background:#fff;color:var(--primary);box-shadow:none}
.btn-light:hover{background:var(--bg-soft);color:var(--primary)}
.section{padding:80px 0}
.section-alt{background:var(--surface)}
.section-head{text-align:center;max-width:700px;margin:0 auto 50px}
.section-head h2{font-size:clamp(28px,4vw,42px);font-weight:800;letter-spacing:-.03em;margin-bottom:12px;color:var(--primary)}
.section-head p{color:var(--muted);font-size:17px}
.divider{display:inline-block;width:60px;height:4px;background:var(--accent);border-radius:2px;margin-bottom:16px}
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.service-card,.product-card,.partner-card{background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;display:flex;flex-direction:column;border:1px solid var(--border)}
.service-card:hover,.product-card:hover,.partner-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent)}
.service-card .img-wrap,.product-card .img-wrap{overflow:hidden;background:var(--bg-soft)}
.service-card .img-wrap{aspect-ratio:16/10}
.product-card .img-wrap{aspect-ratio:1}
.service-card .img-wrap img,.product-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.service-card:hover .img-wrap img,.product-card:hover .img-wrap img{transform:scale(1.05)}
.service-card .body,.product-card .body{padding:24px;flex:1;display:flex;flex-direction:column}
.service-card h3,.product-card h3{font-size:20px;margin-bottom:10px;font-weight:700;color:var(--primary)}
.product-card h3{font-size:17px}
.service-card p,.product-card p{color:var(--muted);font-size:15px;flex:1;margin-bottom:16px}
.read-more{color:var(--accent-dark);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.product-card .price{color:var(--accent-dark);font-size:20px;font-weight:800;margin-top:12px}
.partners-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px}
.partner-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;align-items:center;justify-content:center;height:120px;transition:.3s;text-decoration:none}
.partner-item:hover{border-color:var(--accent);box-shadow:0 15px 40px -15px rgba(212,163,115,.4);transform:translateY(-3px)}
.partner-item img{max-height:70px;max-width:100%;object-fit:contain;filter:grayscale(1);opacity:.75;transition:.3s}
.partner-item:hover img{filter:grayscale(0);opacity:1}
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.products-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:540px){.products-grid{grid-template-columns:1fr}}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:8px;margin-top:16px}
.gallery img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;cursor:pointer;transition:.2s}
.gallery img:hover{transform:scale(1.05);outline:2px solid var(--accent)}
.page-gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.page-gallery-grid img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;cursor:pointer;transition:.3s;box-shadow:var(--shadow)}
.page-gallery-grid img:hover{transform:scale(1.03);box-shadow:var(--shadow-lg);outline:2px solid var(--accent)}
.lightbox{position:fixed;inset:0;background:rgba(21,42,29,.95);z-index:9999;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;visibility:hidden;transition:.2s}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:90vw;max-height:90vh;border-radius:8px;box-shadow:0 25px 60px rgba(0,0,0,.5)}
.lightbox-close{position:absolute;top:20px;right:24px;color:var(--accent);font-size:40px;cursor:pointer;line-height:1;user-select:none;font-weight:300}
.lightbox-close:hover{color:#fff}
.page-hero{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:70px 0 50px;text-align:center;position:relative;overflow:hidden;background-size:cover;background-position:center}
.page-hero.has-image::before{content:'';position:absolute;inset:0;background:rgba(21,42,29,.72);z-index:0}
.page-hero::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 50%,rgba(212,163,115,.18),transparent 55%);pointer-events:none;z-index:0}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{font-size:clamp(28px,4vw,44px);font-weight:800;letter-spacing:-.03em}
.page-hero-sub{font-size:17px;opacity:.92;margin-top:8px}
.page-content{max-width:900px;margin:0 auto}
.page-content h2{margin:32px 0 12px;font-weight:700;color:var(--primary)}
.page-content p{margin-bottom:16px;color:#3B4A3F}
.contact-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:40px}
.contact-info-card{background:var(--surface);padding:24px;border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;border:1px solid var(--border)}
.contact-info-card h4{color:var(--accent-dark);font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-weight:600}
.contact-info-card p{font-weight:600;color:var(--primary)}
.contact-form{background:var(--surface);padding:32px;border-radius:var(--radius);box-shadow:var(--shadow);max-width:640px;border:1px solid var(--border)}
.contact-form label{display:block;margin-bottom:16px;font-weight:500;font-size:14px;color:var(--primary)}
.contact-form input,.contact-form textarea{width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:10px;font-family:inherit;font-size:15px;margin-top:6px;transition:.2s;background:var(--bg)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(212,163,115,.22);background:#fff}
.contact-form button{background:var(--primary);color:#fff;border:0;padding:14px 32px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;transition:.2s}
.alert-success{background:#E5EDDA;color:var(--primary);padding:14px 20px;border-radius:10px;margin-bottom:20px;border-left:4px solid var(--accent)}
.cta{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:60px 30px;border-radius:var(--radius);text-align:center;position:relative;overflow:hidden}
.cta h2{font-size:clamp(24px,4vw,36px);margin-bottom:12px;font-weight:800;position:relative}
.cta p{opacity:.92;margin-bottom:24px;font-size:17px;position:relative}
.site-footer{background:var(--primary);color:#C9D3C0;padding:60px 0 24px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
@media(max-width:700px){.footer-grid{grid-template-columns:1fr;gap:30px}}
.footer-col h4{color:#fff;margin-bottom:16px;font-size:16px;font-weight:700}
.footer-col p,.footer-col a{color:#C9D3C0;font-size:14px;display:block;margin-bottom:8px}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;text-align:center;font-size:13px;color:#A6B3A0}
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeInUp .6s ease-out both}
.partner-card{align-items:center;text-align:center;padding:24px 20px;color:var(--text);text-decoration:none}
.partner-card-logo{height:90px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;width:100%}
.partner-card-logo img{max-height:80px;max-width:100%;object-fit:contain;filter:grayscale(1);opacity:.75;transition:.3s}
.partner-card:hover .partner-card-logo img{filter:grayscale(0);opacity:1}
.partner-card-name{font-weight:700;font-size:16px;margin-bottom:6px;color:var(--primary)}
.partner-card-desc{font-size:13px;color:var(--muted);line-height:1.5;margin-bottom:10px}
.partner-card-meta{font-size:12px;color:var(--accent-dark);font-weight:600;margin-top:auto;padding-top:8px}
.partner-back{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;margin:24px 20px 0;padding:10px 16px;border-radius:8px}
.partner-back:hover{background:var(--bg-soft)}
.partner-detail-hero{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:50px 0 60px;margin-top:16px}
.partner-detail-inner{display:flex;align-items:center;gap:32px;flex-wrap:wrap}
.partner-detail-logo{background:#fff;border-radius:16px;padding:20px;width:200px;height:140px;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 20px 50px -15px rgba(0,0,0,.3)}
.partner-detail-logo img{max-width:100%;max-height:100%;object-fit:contain}
.partner-detail-info{flex:1;min-width:260px}
.partner-detail-info h1{font-size:clamp(26px,4vw,40px);font-weight:800;margin-bottom:10px}
.partner-detail-desc{font-size:17px;opacity:.92}
.partner-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-top:20px}
.partner-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;cursor:pointer;transition:.3s;box-shadow:var(--shadow)}
.partner-gallery img:hover{transform:scale(1.03);box-shadow:var(--shadow-lg);outline:2px solid var(--accent)}
@media(max-width:600px){.hero-slider{height:420px}.slide-content h1{font-size:32px}.partner-detail-inner{flex-direction:column;text-align:center}.partner-detail-info{min-width:0}}
@media(max-width:500px){.partner-gallery{grid-template-columns:repeat(2,1fr);gap:10px}}
/* ==========================================================
   LAYOUT SYSTEM — Grid cols / List layouts / Sort bar
   ========================================================== */
.services-grid{display:grid;gap:24px}
.services-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.services-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.services-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.products-grid{display:grid;gap:24px}
.products-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.products-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.products-grid.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1100px){
  .services-grid.cols-4,.products-grid.cols-4{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:900px){
  .services-grid.cols-3,.products-grid.cols-3,
  .services-grid.cols-4,.products-grid.cols-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .services-grid.cols-2,.services-grid.cols-3,.services-grid.cols-4,
  .products-grid.cols-2,.products-grid.cols-3,.products-grid.cols-4{grid-template-columns:1fr}
}

/* Image placeholders */
.img-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;font-size:44px;opacity:.45}

/* === LIST LAYOUT === */
.services-list,.products-list{display:flex;flex-direction:column;gap:24px}
.service-row,.product-row{display:grid;grid-template-columns:1fr 2fr;gap:28px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.3s;box-shadow:var(--shadow)}
.service-row:hover,.product-row:hover{box-shadow:var(--shadow-lg);border-color:var(--accent)}
.service-row .row-image,.product-row .row-image{overflow:hidden;background:var(--bg-soft);min-height:240px;position:relative}
.service-row .row-image img,.product-row .row-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s;position:absolute;inset:0}
.service-row:hover .row-image img,.product-row:hover .row-image img{transform:scale(1.05)}
.service-row .row-body,.product-row .row-body{padding:28px;display:flex;flex-direction:column}
.service-row h3,.product-row h3{font-size:22px;margin-bottom:12px;font-weight:700;color:var(--primary)}
.product-row .price{color:var(--accent-dark);font-size:22px;font-weight:800;margin-top:12px}
.service-row p,.product-row p{color:var(--muted);font-size:15px;line-height:1.65;margin-bottom:14px}
.service-row .content,.product-row .content{margin-top:12px;color:#3B4A3F;font-size:14px;line-height:1.7}
.services-list.list-right .service-row,
.products-list.list-right .product-row{grid-template-columns:2fr 1fr}
.services-list.list-right .service-row .row-image,
.products-list.list-right .product-row .row-image{order:2}
.services-list.list-right .service-row .row-body,
.products-list.list-right .product-row .row-body{order:1}
@media(max-width:900px){
  .service-row,.product-row,
  .services-list.list-right .service-row,
  .products-list.list-right .product-row{grid-template-columns:1fr;gap:0}
  .services-list.list-right .service-row .row-image,
  .products-list.list-right .product-row .row-image{order:0;aspect-ratio:16/9 !important;min-height:200px}
  .services-list.list-right .service-row .row-body,
  .products-list.list-right .product-row .row-body{order:0}
  .service-row .row-body,.product-row .row-body{padding:22px}
}
@media(max-width:500px){
  .service-row h3,.product-row h3{font-size:18px}
}

/* === SORT BAR === */
.sort-bar{display:flex;justify-content:flex-end;align-items:center;gap:12px;margin-bottom:28px;flex-wrap:wrap}
.sort-bar label{font-weight:500;color:var(--muted);font-size:14px;margin:0!important}
.sort-bar select{padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:14px;background:var(--surface);color:var(--text);cursor:pointer;transition:.2s;font-weight:500}
.sort-bar select:hover{border-color:var(--accent)}
.sort-bar select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,0,0,.05)}
/* === PRODUCT DETAIL === */
.product-detail-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;margin-bottom:60px}
@media(max-width:900px){.product-detail-layout{grid-template-columns:1fr;gap:24px}}
.product-gallery-main{aspect-ratio:1;overflow:hidden;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-soft);position:relative}
.product-gallery-main img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.product-gallery-main:hover img{transform:scale(1.03)}
.product-gallery-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.product-gallery-thumbs img{aspect-ratio:1;object-fit:cover;border-radius:8px;cursor:pointer;border:2px solid transparent;transition:.2s;opacity:.7}
.product-gallery-thumbs img:hover{opacity:1}
.product-gallery-thumbs img.active{border-color:var(--accent);opacity:1}
@media(max-width:500px){.product-gallery-thumbs{grid-template-columns:repeat(4,1fr)}}
.product-detail-info h1{font-size:clamp(26px,4vw,40px);font-weight:800;letter-spacing:-.02em;margin-bottom:16px;color:var(--primary)}
.product-detail-price{font-size:32px;font-weight:800;color:var(--accent-dark);margin-bottom:20px}
.product-detail-desc{font-size:16px;color:var(--muted);line-height:1.7;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.product-detail-partner{display:flex;align-items:center;gap:12px;padding:14px;background:var(--bg-soft);border-radius:10px;margin-bottom:24px;flex-wrap:wrap}
.product-detail-partner>span{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.product-detail-partner a{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--primary)}
.product-detail-partner img{height:36px;width:auto;background:#fff;padding:4px;border-radius:6px;object-fit:contain}
.product-detail-content{margin-top:40px;padding-top:40px;border-top:1px solid var(--border)}
.product-detail-content h2{font-size:24px;margin-bottom:20px;color:var(--primary);font-weight:700}
.product-related{margin-top:60px;padding-top:40px;border-top:1px solid var(--border)}
.product-related h2{font-size:24px;margin-bottom:24px;color:var(--primary);font-weight:700}

/* === PRODUCT CARD LINK === */
a.product-card,a.product-row{text-decoration:none;color:inherit;display:block}
a.product-card:hover h3,a.product-row:hover h3{color:var(--accent-dark)}
.product-partner{display:inline-block;font-size:12px;color:var(--accent-dark);font-weight:600;margin-bottom:8px;padding:3px 8px;background:var(--bg-soft);border-radius:4px}
.img-badge{position:absolute;top:10px;right:10px;background:rgba(0,0,0,.7);color:#fff;font-size:11px;font-weight:600;padding:4px 10px;border-radius:20px}

/* === FILTER BAR === */
.filter-bar{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-bottom:32px;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.filter-group{display:flex;align-items:center;gap:8px}
.filter-group label{font-weight:500;color:var(--muted);font-size:14px;margin:0}
.filter-group select{padding:9px 14px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:14px;background:var(--bg);color:var(--text);cursor:pointer;font-weight:500;min-width:180px;transition:.2s}
.filter-group select:hover{border-color:var(--accent)}
.filter-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,0,0,.05)}
.filter-active{display:flex;align-items:center;gap:10px;padding:8px 14px;background:var(--bg-soft);border-radius:20px;font-size:13px;margin-left:auto}
.filter-active strong{color:var(--primary)}
.filter-active a{color:var(--muted);font-weight:600}
@media(max-width:600px){
  .filter-bar{padding:12px;gap:10px}
  .filter-group{flex:1 1 100%}
  .filter-group select{width:100%}
  .filter-active{margin-left:0;width:100%;justify-content:space-between}
}