/* ===== Moc Duong – mobile first ===== */
:root{
  --green:#1f7a3a; --green-d:#155c2a; --green-l:#e8f4ec;
  --gold:#c9a227; --gold-l:#fbf5e1;
  --ink:#1d2421; --muted:#66706b; --line:#e3e8e5;
  --bg:#f5f7f5; --card:#fff; --radius:14px;
  --shadow:0 1px 2px rgba(0,0,0,.05),0 4px 14px rgba(0,0,0,.05);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);padding-bottom:calc(70px + env(safe-area-inset-bottom))}
img{max-width:100%;display:block}
a{color:var(--green)}
h1,h2,h3{line-height:1.3;margin:0 0 .5em}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.muted{color:var(--muted)} .small{font-size:.875rem}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}

/* Topbar */
.topbar{position:sticky;top:0;z-index:20;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 16px;padding:8px 16px;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(6px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--green-d);font-weight:700;font-size:.95rem;min-width:0}
.brand img{width:44px;height:auto}
.brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topnav{display:none;gap:18px;flex:0 0 auto}
/* Slogan chay ngang */
.slogan{order:3;flex:1 1 100%;overflow:hidden;position:relative;height:26px;border-radius:999px;background:linear-gradient(90deg,var(--green-l),var(--gold-l));
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.slogan-track{display:flex;width:max-content;height:100%;align-items:center;animation:md-marquee 22s linear infinite}
.slogan-track span{padding-right:64px;white-space:nowrap;font-weight:600;font-size:.85rem;color:var(--green-d)}
.slogan:hover .slogan-track{animation-play-state:paused}
@keyframes md-marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.slogan-track{animation-duration:60s}}
.topnav a{text-decoration:none;color:var(--ink);font-weight:500}
.topnav a:hover{color:var(--green)}

/* Hero / company */
.ico{display:inline-block;width:1.15em;height:1.15em;flex:0 0 auto;vertical-align:-.2em}
.hero{padding-top:14px}
.company{display:flex;flex-direction:column;gap:14px;border-top:4px solid var(--gold);padding:16px}
.company-info{flex:1;min-width:0}
.company-head{display:flex;align-items:center;gap:12px;padding-bottom:12px;margin-bottom:4px;border-bottom:1px solid var(--line)}
.company-logo{width:68px;height:auto;flex:0 0 auto;border-radius:12px;background:#fff;padding:4px;box-shadow:0 0 0 1px var(--line)}
.company-title{min-width:0}
.company h1{margin:0 0 4px;font-size:1.02rem;line-height:1.35;color:var(--green-d);text-transform:uppercase;letter-spacing:.1px;text-wrap:balance}
.company .short{margin:0;color:var(--gold);font-weight:700;font-size:.85rem;letter-spacing:.6px}
.facts{margin:0;display:grid}
.fact{display:grid;grid-template-columns:1fr;gap:2px;padding:10px 0;border-bottom:1px dashed var(--line)}
.fact:last-child{border-bottom:0;padding-bottom:0}
.facts dt{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.facts dt .ico{color:var(--gold);width:15px;height:15px}
.facts dd{margin:0;font-size:.95rem;line-height:1.5;padding-left:21px}
.company-qr{display:flex;align-items:center;gap:14px;padding:12px;border-radius:12px;background:var(--green-l)}
.company-qr .qr{width:96px!important;flex:0 0 96px}
.cq-text{display:flex;flex-direction:column;gap:2px;color:var(--green-d);font-size:.95rem}
.cq-text small{color:var(--muted);font-size:.82rem}

/* Nut lien he */
.contact-btns{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.cbtn{display:flex;align-items:center;gap:10px;min-height:58px;padding:9px 12px;border-radius:14px;text-decoration:none;color:#fff;box-shadow:0 3px 10px rgba(0,0,0,.08);transition:transform .15s,box-shadow .15s;min-width:0}
.cbtn:active{transform:scale(.98)}
.cbtn:hover{box-shadow:0 6px 16px rgba(0,0,0,.14)}
.cbtn-ico{width:38px;height:38px;flex:0 0 38px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.2)}
.cbtn-ico .ico{width:20px;height:20px}
.cbtn-txt{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.cbtn-txt b{font-size:.95rem}
.cbtn-txt small{font-size:.8rem;opacity:.92;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cbtn-call{background:linear-gradient(135deg,#25a050,var(--green-d))}
.cbtn-call .cbtn-ico{animation:md-ring 2.4s ease-in-out infinite}
.cbtn-zalo{background:linear-gradient(135deg,#2a8cff,#0068ff)}
.cbtn-line{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line),0 3px 10px rgba(0,0,0,.05)}
.cbtn-line .cbtn-ico{background:var(--green-l);color:var(--green)}
@keyframes md-ring{0%,60%,100%{transform:rotate(0)}65%{transform:rotate(-14deg)}72%{transform:rotate(12deg)}79%{transform:rotate(-8deg)}86%{transform:rotate(5deg)}}
@media (prefers-reduced-motion:reduce){.cbtn-call .cbtn-ico{animation:none}}

/* Sections */
.section{padding-top:28px}
.section h2{font-size:1.2rem;color:var(--green-d);display:flex;align-items:center;gap:10px}
.section h2::before{content:"";width:6px;height:1.1em;border-radius:3px;background:var(--gold)}
.prose p{margin:0 0 .8em} .prose p:last-child{margin:0}

/* QR */
.qr{background:#fff;padding:4px;border-radius:8px;line-height:0}
.qr svg{display:block;width:100%;height:auto}
.qr-sm{width:76px;flex:0 0 76px;border:1px solid var(--line)}

/* Products */
.pslider{position:relative}
.products{--pv:1.15;display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:4px 2px 12px;margin:0 -2px;scrollbar-width:none;overscroll-behavior-x:contain}
.products::-webkit-scrollbar{display:none}
.products>.product{flex:0 0 calc((100% - (var(--pv) - 1) * 12px) / var(--pv) - 1px);scroll-snap-align:start;min-width:0}
.ps-nav{position:absolute;top:calc(var(--imgh, 160px) / 2 + 4px);transform:translateY(-50%);z-index:2;width:40px;height:40px;border-radius:50%;border:0;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.18);font-size:26px;line-height:1;color:var(--green-d);cursor:pointer;display:flex;align-items:center;justify-content:center;padding-bottom:3px}
.ps-prev{left:-8px}.ps-next{right:-8px}
.ps-dots{display:flex;justify-content:center;gap:6px;margin-top:4px}
.ps-dots button{width:8px;height:8px;border-radius:50%;border:0;padding:0;background:#cdd8d1;cursor:pointer}
.ps-dots button.on{background:var(--green);width:22px;border-radius:4px}
.ps-static .ps-nav,.ps-static .ps-dots{display:none}
.product{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.p-img{display:block;position:relative;aspect-ratio:1/1;background:#fff;overflow:hidden;border-bottom:1px solid var(--line)}
.p-img img{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:contain;padding:12px;background:#fff;transition:transform .3s}
.product:hover .p-img img{transform:scale(1.04)}
.p-ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--green);font-size:1.1rem;text-align:center;padding:8px;background:linear-gradient(135deg,var(--green-l),var(--gold-l))}
.p-ph.big{position:static;min-height:220px;border-radius:var(--radius)}
.p-body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.p-body h3{font-size:1rem;margin:0;line-height:1.35;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;line-clamp:3;overflow:hidden;min-height:calc(1.35em * 3)}
.p-body h3 a{color:var(--ink);text-decoration:none}
.p-pack{margin:0;color:var(--muted);font-size:.85rem;line-height:1.4;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden;min-height:calc(1.4em * 2)}
.p-body .tag{max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.p-foot{display:flex;gap:12px;align-items:center;margin-top:auto;padding-top:8px;border-top:1px dashed var(--line)}
.p-links{display:flex;flex-direction:column;gap:6px;align-items:flex-start}
.tag{display:inline-block;align-self:flex-start;font-size:.72rem;font-weight:600;color:var(--green-d);background:var(--green-l);padding:2px 8px;border-radius:999px}
.link-more{font-size:.88rem;font-weight:600;text-decoration:none}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 18px;min-height:44px;border-radius:10px;background:var(--green);color:#fff;text-decoration:none;font-weight:600;border:0;cursor:pointer;font-size:.95rem}
.btn:hover{background:var(--green-d)}
.btn-sm{padding:7px 12px;min-height:36px;font-size:.85rem;text-align:center;line-height:1.25}
.btn-ghost{background:#fff;color:var(--green);box-shadow:inset 0 0 0 1.5px var(--green)}
.btn-ghost:hover{background:var(--green-l)}
.btn-off{background:#eef0ef;color:var(--muted);cursor:default}

/* Slider */
.slider{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#000}
.slides{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.slides::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:start;margin:0;position:relative;aspect-ratio:16/10}
.slide img{width:100%;height:100%;object-fit:cover}
.slide figcaption{position:absolute;left:0;right:0;bottom:0;padding:24px 14px 30px;color:#fff;font-size:.92rem;background:linear-gradient(transparent,rgba(0,0,0,.65))}
.sl-nav{position:absolute;top:50%;transform:translateY(-50%);width:38px;height:38px;border-radius:50%;border:0;background:rgba(255,255,255,.85);font-size:24px;line-height:1;cursor:pointer;color:var(--ink)}
.sl-prev{left:8px}.sl-next{right:8px}
.sl-dots{position:absolute;bottom:8px;left:0;right:0;display:flex;justify-content:center;gap:6px}
.sl-dots button{width:8px;height:8px;border-radius:50%;border:0;padding:0;background:rgba(255,255,255,.5);cursor:pointer}
.sl-dots button.on{background:#fff;width:20px;border-radius:4px}

/* Contact */
.contact-grid{display:grid;gap:12px}
.ct-name{font-size:1rem;color:var(--green-d)}
.ct-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.map{padding:0;overflow:hidden;min-height:260px}
.map iframe{display:block;width:100%;height:100%;min-height:260px;border:0}

/* Detail */
.back{display:inline-block;margin-bottom:12px;text-decoration:none;font-weight:600}
.detail{display:grid;gap:16px}
.detail h1{font-size:1.25rem}
.d-img img{width:100%;border-radius:10px;background:#fff}
.spec{width:100%;border-collapse:collapse;margin:8px 0 12px;font-size:.95rem}
.spec th,.spec td{text-align:left;padding:8px 0;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:38%;color:var(--muted);font-weight:500}
.d-actions{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.d-qr{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px;background:var(--green-l);border-radius:12px}
.d-qr .qr{width:140px}
.d-qr small{color:var(--muted)}
.d-left{display:grid;gap:14px;align-content:start;min-width:0}
/* Khung xem giay chung nhan */
.viewer{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;display:flex;flex-direction:column;scroll-margin-top:90px}
.pv-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 10px;background:var(--green-l);border-bottom:1px solid var(--line)}
.pv-title{font-size:.92rem;color:var(--green-d);white-space:nowrap}
.pv-tools{display:flex;align-items:center;gap:6px}
.pv-btn{display:inline-flex;align-items:center;gap:5px;min-width:36px;height:36px;padding:0 10px;border-radius:9px;border:1px solid #cfd9d3;background:#fff;color:var(--green-d);font:inherit;font-weight:700;font-size:.85rem;cursor:pointer;justify-content:center}
.pv-btn:hover{background:var(--green);color:#fff;border-color:var(--green)}
.pv-full{background:var(--green);color:#fff;border-color:var(--green)}
.pv-body{position:relative;background:#e9ecea}
.pv-pages{position:relative;height:420px;overflow:auto;padding:8px;display:flex;flex-direction:column;align-items:center;gap:8px;-webkit-overflow-scrolling:touch}
.pv-pg{background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.15);flex:0 0 auto;max-width:none}
.pv-pg canvas{display:block}
.pv-img img{width:100%;height:auto}
.pv-frame{display:block;width:100%;height:420px;border:0;background:#fff}
.pv-status,.pv-empty{margin:auto;padding:30px 16px;text-align:center;color:var(--muted);font-size:.92rem}
.pv-empty{min-height:160px;display:flex;align-items:center;justify-content:center}
.pv-open{display:block;padding:8px 12px;text-align:right;text-decoration:none;font-weight:600;border-top:1px solid var(--line)}
/* Toan man hinh */
.viewer.is-full{position:fixed;inset:0;z-index:1000;border-radius:0;border:0}
.viewer.is-full .pv-body{flex:1;min-height:0}
.viewer.is-full .pv-pages,.viewer.is-full .pv-frame{height:100%}
.viewer.is-full .pv-bar{padding-top:calc(8px + env(safe-area-inset-top))}
.viewer.is-full .pv-open{padding-bottom:calc(8px + env(safe-area-inset-bottom))}
html.noscroll,html.noscroll body{overflow:hidden}
.pv-page{white-space:nowrap}
@media (max-width:420px){.viewer:not(.is-full) .pv-full-txt{display:none}.viewer.is-full .pv-title{font-size:.85rem}}

/* Footer + action bar */
.footer{margin-top:36px;padding:20px 0;background:var(--green-d);color:#dfeee4;font-size:.85rem}
.actionbar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:rgba(255,255,255,.97);border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(0,0,0,.07);backdrop-filter:blur(6px)}
.actionbar a{display:flex;align-items:center;justify-content:center;gap:7px;height:46px;border-radius:12px;text-decoration:none;font-size:.88rem;font-weight:700;color:var(--ink);background:#f1f4f2}
.actionbar a .ico{width:20px;height:20px}
.actionbar .ab-call{background:linear-gradient(135deg,#25a050,var(--green-d));color:#fff}
.actionbar .ab-zalo{background:linear-gradient(135deg,#2a8cff,#0068ff);color:#fff}
.actionbar .ab-map{background:var(--gold-l);color:#8a6a0a;box-shadow:inset 0 0 0 1px #efe0b0}

/* >= 340px: 2 cot san pham tren dien thoai */
@media (min-width:340px){
  .products{--pv:2;gap:10px}
  .products>.product{flex-basis:calc((100% - 10px) / 2 - 1px)}
  .p-body{padding:10px 10px 12px}
  .p-body h3{font-size:.9rem}
  .p-img img{padding:8px}
  .p-foot{flex-direction:column;align-items:flex-start;gap:8px}
  .p-links,.p-links .btn{width:100%}
}
/* Tablet / desktop */
@media (min-width:768px){
  body{padding-bottom:0}
  .actionbar{display:none}
  .topnav{display:flex}
  .brand{font-size:1.05rem;flex:0 0 auto}
  .topbar{flex-wrap:nowrap}
  .slogan{order:0;flex:1 1 0;min-width:0;height:30px}
  .company{flex-direction:row;align-items:stretch;gap:24px;padding:22px 24px}
  .company-logo{width:104px}
  .company h1{font-size:1.4rem}
  .fact{grid-template-columns:150px 1fr;align-items:baseline;padding:8px 0}
  .facts dd{padding-left:0}
  .company-qr{flex-direction:column;justify-content:center;text-align:center;gap:8px;padding:14px 16px;align-self:center}
  .company-qr .qr{width:128px!important;flex:0 0 auto}
  .contact-btns{grid-template-columns:repeat(auto-fit,minmax(200px,240px))}
  .products{--pv:3;gap:16px}
  .products>.product{flex-basis:calc((100% - 32px) / 3 - 1px)}
  .ps-prev{left:-18px}.ps-next{right:-18px}
  .p-foot{flex-direction:row;align-items:center}
  .p-links,.p-links .btn{width:auto}
  .contact-grid{grid-template-columns:1fr 1.3fr}
  .detail{grid-template-columns:1fr 1.2fr;padding:24px}
  .slide{aspect-ratio:21/9}
}
@media (min-width:1024px){ .products{--pv:4} .products>.product{flex-basis:calc((100% - 48px) / 4 - 1px)} }

/* ===== v1.3: nut lien he nhieu so, bang chon so, ho so PDF ===== */
.actionbar a,.actionbar button{display:flex;align-items:center;justify-content:center;gap:7px;height:46px;border:0;border-radius:12px;text-decoration:none;font:inherit;font-size:.88rem;font-weight:700;color:var(--ink);background:#f1f4f2;cursor:pointer}
.actionbar button.ab-call{background:linear-gradient(135deg,#25a050,var(--green-d));color:#fff}
.actionbar button.ab-zalo{background:linear-gradient(135deg,#2a8cff,#0068ff);color:#fff}
.actionbar button .ico{width:20px;height:20px}

.sheet{position:fixed;inset:0;z-index:900;background:rgba(10,20,15,0);display:flex;align-items:flex-end;justify-content:center;transition:background .2s}
.sheet[hidden]{display:none!important}
.sheet.on{background:rgba(10,20,15,.45)}
.sheet-box{width:100%;max-width:480px;background:#fff;border-radius:18px 18px 0 0;padding:14px 14px calc(16px + env(safe-area-inset-bottom));transform:translateY(100%);transition:transform .2s ease-out;display:grid;gap:10px}
.sheet.on .sheet-box{transform:none}
.sheet-head{display:flex;align-items:center;justify-content:space-between;padding:2px 4px 4px;color:var(--green-d)}
.sheet-x{width:36px;height:36px;border-radius:50%;border:0;background:#f1f4f2;font-size:16px;cursor:pointer}
.sheet-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;text-decoration:none;color:#fff}
.sheet-item b{display:block;font-size:1.05rem;letter-spacing:.3px}
.sheet-item small{opacity:.9;font-size:.8rem}
.si-call{background:linear-gradient(135deg,#25a050,var(--green-d))}
.si-zalo{background:linear-gradient(135deg,#2a8cff,#0068ff)}

/* Ho so nang luc & chung chi */
.docs>.doc-card{text-decoration:none;color:var(--ink);cursor:pointer}
.doc-thumb{aspect-ratio:3/4!important;background:linear-gradient(160deg,#f7faf8,#eef3f0)!important;display:flex!important;align-items:center;justify-content:center}
.doc-thumb img,.doc-thumb .doc-canvas{position:absolute;inset:10px;width:calc(100% - 20px)!important;height:calc(100% - 20px)!important;object-fit:contain;padding:0!important;background:transparent!important}
.doc-thumb .doc-canvas{box-shadow:0 2px 10px rgba(0,0,0,.12);background:#fff!important;width:auto!important;height:auto!important;max-width:calc(100% - 20px);max-height:calc(100% - 20px);inset:auto;position:static}
.doc-ph{display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--green)}
.doc-ph .ico{width:44px;height:44px;opacity:.6}
.doc-ph small{color:var(--muted);font-size:.78rem}
.doc-badge{position:absolute;top:8px;left:8px;padding:2px 8px;border-radius:6px;background:#c62828;color:#fff;font-size:.68rem;font-weight:800;letter-spacing:.5px}
.doc-card .p-body{gap:8px}
.doc-title{font-weight:700;font-size:.92rem;line-height:1.35;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden;min-height:calc(1.35em * 2)}
.doc-open{display:inline-flex;align-items:center;gap:6px;margin-top:auto;font-size:.85rem;font-weight:700;color:var(--green)}
.doc-card:hover .doc-open{text-decoration:underline}
.doc-modal[hidden]{display:none!important}
.doc-modal .pv-title{display:flex;align-items:center;gap:6px;min-width:0;overflow:hidden}
.doc-modal .dm-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.doc-modal .pv-full{background:#c0392b;border-color:#c0392b}
.pv-image{max-width:100%;height:auto;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.15)}
@media (max-width:420px){.doc-modal .pv-full-txt{display:none}}
@media (min-width:768px){.docs>.doc-card{flex-basis:calc((100% - 48px) / 4 - 1px)}}
@media (min-width:1024px){.docs>.doc-card{flex-basis:calc((100% - 64px) / 5 - 1px)}}