/* ============================================================
   ECOLUX — Architectural Lighting
   Custom styles on top of Bootstrap 3.0.0 / Font Awesome 4.7 / Owl 2.3.4
   ============================================================ */

:root{
  --bg:#0d0d0d;
  --bg-2:#141414;
  --bg-3:#1b1b1b;
  --card:#262626;
  --card-2:#2e2e2e;
  --gold:#c29b5c;
  --gold-2:#d6ab63;
  --gold-soft:#b89358;
  --text:#ffffff;
  --muted:#9a9a9a;
  --muted-2:#7c7c7c;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
}

/* ---------- base ---------- */
*{box-sizing:border-box;}
html,body{ -webkit-font-smoothing:antialiased; max-width:100%; overflow-x:hidden; }
body{
  font-family:'Be Vietnam Pro',-apple-system,Segoe UI,Roboto,sans-serif;
  background:var(--bg);
  color:var(--muted);
  font-size:15px;
  line-height:1.7;
  overflow-x:hidden;
}
a{ color:inherit; text-decoration:none; transition:color .25s ease; }
a:hover,a:focus{ color:var(--gold-2); text-decoration:none; outline:none; }
a:focus-visible{ outline:none; }
img{ max-width:100%; }
h1,h2,h3,h4,h5,h6{
  font-family:'Montserrat',sans-serif;
  color:var(--text);
  margin:0;
  font-weight:700;
}
p{ margin:0; }
.container{ max-width:1200px; }

/* selection */
::selection{ background:var(--gold); color:#1a1207; }

/* ---------- helpers ---------- */
.text-gold{ color:var(--gold-2)!important; }
.eyebrow{
  font-family:'Montserrat',sans-serif;
  text-transform:uppercase;
  letter-spacing:.22em;
  font-size:11px;
  font-weight:600;
  color:var(--gold-2);
}
.section{ padding:64px 0; position:relative; }
.section-head{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:34px; flex-wrap:wrap; gap:12px;
}
.section-title{
  font-size:26px; letter-spacing:.04em; text-transform:uppercase; font-weight:800;
}
.section-sub{ color:var(--muted); margin-top:6px; font-size:14px; }
.link-all{
  font-family:'Montserrat',sans-serif; font-size:12px; font-weight:600;
  letter-spacing:.14em; text-transform:uppercase; color:var(--gold-2);
  display:inline-flex; align-items:center; gap:8px; white-space:nowrap;
}
.link-all i{ transition:transform .25s ease; }
.link-all:hover i{ transform:translateX(4px); }
.section-footer{padding-top:10px; }

/* ---------- buttons ---------- */
.btn-eco{
  display:inline-flex; align-items:center; gap:10px;
  font-family:'Montserrat',sans-serif; font-weight:600; letter-spacing:.1em;
  text-transform:uppercase; font-size:12.5px;
  padding:15px 30px; border-radius:2px; border:1px solid transparent;
  transition:all .25s ease; cursor:pointer;
}
.btn-gold{ background:var(--gold); color:#1a1308; border-color:var(--gold); }
.btn-gold:hover{ background:var(--gold-2); border-color:var(--gold-2); color:#1a1308; }
.btn-ghost{ background:transparent; color:#e9e9e9; border-color:rgba(255,255,255,.28); }
.btn-ghost:hover{ border-color:var(--gold-2); color:var(--gold-2); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:22px 0;
  transition:background .3s ease, padding .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(13,13,13,.92);
  backdrop-filter:blur(10px);
  padding:14px 0;
  box-shadow:0 1px 0 var(--line), 0 12px 40px rgba(0,0,0,.5);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; }

/* logo */
.brand{ display:flex; align-items:center; gap:12px; }
.site-header .brand img{ height:46px; width:auto; display:block; }
.site-footer .brand img{ height:54px; width:auto; display:block; }
.brand-mark{
  width:34px; height:34px; border-radius:50%;
  border:2px solid var(--gold-2);
  display:flex; align-items:center; justify-content:center;
  color:var(--gold-2); font-size:16px; flex:none;
}
.brand-text .brand-name{
  font-family:'Montserrat',sans-serif; font-weight:800; letter-spacing:.32em;
  font-size:20px; color:#fff; line-height:1;
}
.brand-text .brand-tag{
  font-size:8.5px; letter-spacing:.34em; color:var(--gold-2);
  text-transform:uppercase; margin-top:3px; font-weight:500;
}

/* nav */
.main-nav{ display:flex; align-items:center; gap:30px; }
.main-nav a{
  font-family:'Montserrat',sans-serif; font-size:12.5px; font-weight:600;
  letter-spacing:.1em; text-transform:uppercase; color:#dcdcdc; position:relative;
  padding:4px 0;
}
.main-nav a.active,.main-nav a:hover{ color:var(--gold-2); }
.main-nav a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:-6px; height:2px;
  background:var(--gold-2);
}

/* dropdown */
.nav-item{ position:relative; display:flex; align-items:center; }
.nav-parent i{ font-size:11px; margin-left:5px; transition:transform .25s ease; }
.nav-item:hover .nav-parent i{ transform:rotate(180deg); }
/* invisible bridge so the cursor never leaves :hover crossing the gap */
.nav-item::after{
  content:""; position:absolute; top:100%; left:0; right:0; height:18px;
}
.sub-menu{
  position:absolute; top:calc(100% + 6px); left:50%; transform:translateX(-50%) translateY(6px);
  min-width:210px; background:var(--bg-2); border:1px solid var(--line);
  border-bottom:2px solid var(--gold-2); border-radius:4px; padding:8px 0;
  box-shadow:0 18px 44px rgba(0,0,0,.5);
  opacity:0; visibility:hidden; transition:opacity .2s ease, transform .2s ease; z-index:1002;
}
.nav-item:hover .sub-menu{ opacity:1; visibility:visible; transform:translateX(-50%) translateY(0); }
.sub-menu a{
  display:block; padding:9px 20px; font-size:12px; letter-spacing:.06em;
  color:#cfcfcf; white-space:nowrap; text-transform:none;
}
.sub-menu a:hover{ color:var(--gold-2); background:rgba(196,150,80,.08); }
.sub-menu a::after{ display:none; }
.header-search{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--line-2);
  display:flex; align-items:center; justify-content:center; color:#dcdcdc;
}
.header-search:hover{ border-color:var(--gold-2); color:var(--gold-2); }
.nav-search-mobile{ display:none; }
.nav-toggle{
  display:none; background:none; border:0; color:#fff; font-size:22px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative; min-height:560px; display:block;
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0; z-index:0;
  background:
    radial-gradient(120% 90% at 78% 38%, rgba(196,150,80,.30), transparent 55%),
    linear-gradient(105deg,#0d0d0d 0%,#0d0d0d 34%,#171310 50%,#241b12 70%,#100b07 100%);
}
.hero-photo{
  position:absolute; inset:0; z-index:0;
  background-image:url('../images/main-banner.jpg');
  background-size:cover;
  background-position:right center;
}
.hero-photo::before{
  content:""; position:absolute; inset:0;
  background-image:url('../images/main-banner-2.jpg');
  background-size:cover;
  background-position:right center;
  opacity:0;
  animation:hero-crossfade 12s ease-in-out infinite;
}
@keyframes hero-crossfade{
  0%        { opacity:0; }
  8%        { opacity:1; }
  46%       { opacity:1; }
  54%       { opacity:0; }
  100%      { opacity:0; }
}
.hero-photo::after{
  /* darken the left side so the headline stays readable over the photo */
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(90deg,#0d0d0d 0%,rgba(13,13,13,.92) 24%,rgba(13,13,13,.55) 48%,rgba(13,13,13,.15) 72%,transparent 100%),
    linear-gradient(180deg,rgba(13,13,13,.4) 0%,transparent 30%,transparent 70%,rgba(13,13,13,.55) 100%);
}
.hero .container{ position:relative; z-index:2; }
.hero-content{ max-width:640px; padding:150px 0 95px; }
.hero h1{
  font-size:54px; line-height:1.3; font-weight:800; letter-spacing:.01em;
  text-transform:uppercase; margin-bottom:22px;
}
.hero h1 .gold{ color:var(--gold-2); white-space:nowrap; }
.hero p.lead-txt{ font-size:16px; color:#cfcfcf; max-width:460px; margin-bottom:34px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }
.hero-actions .btn-eco{ flex:0 0 auto; justify-content:center; white-space:nowrap; padding-left:28px; padding-right:28px; }
@media(max-width:480px){
  .hero-actions .btn-eco{ flex:0 0 100%; }
}

/* ============================================================
   FEATURES BAR
   ============================================================ */
.features{ background:var(--bg-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.features .row{ display:flex; flex-wrap:wrap; margin:0; }
.feature{
  flex:1 1 25%; padding:34px 28px; display:flex; gap:18px; align-items:flex-start;
  border-right:1px solid var(--line);
}
.feature:last-child{ border-right:0; }
.feature .f-ico{
  font-size:30px; color:var(--gold-2); flex:none; line-height:1; margin-top:2px;
}
.feature h4{ font-size:15px; text-transform:uppercase; letter-spacing:.04em; margin-bottom:7px; font-weight:700; line-height: 22px;}
.feature p{ font-size:13px; color:var(--muted); line-height:1.55; }

/* ============================================================
   PRODUCT CATEGORIES
   ============================================================ */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
@media(max-width:991px){ .cat-grid{ grid-template-columns:repeat(2,1fr); } }
@media(max-width:575px){ .cat-grid{ grid-template-columns:1fr; } }
.cat-card{
  background:linear-gradient(180deg,var(--card) 0%,var(--card-2) 100%);
  border:1px solid var(--line); border-radius:4px;
  padding:34px 18px 26px; text-align:center; height:100%;
  transition:all .3s ease; position:relative; overflow:hidden;
}
.cat-card::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:3px;
  background:var(--gold-2); transform:scaleX(0); transition:transform .3s ease;
}
.cat-card:hover{ transform:translateY(-6px); border-color:var(--line-2); }
.cat-card:hover::after{ transform:scaleX(1); }
.cat-ico{
  display:flex; align-items:center; justify-content:center; margin-bottom:18px;
}
.cat-ico svg{ width:58px; height:58px; }
.cat-ico svg [stroke]{ stroke:#e8e8e8; transition:stroke .3s ease; }
.cat-card:hover .cat-ico svg [stroke]{ stroke:var(--gold-2); }
.cat-name{ font-size:14px; text-transform:uppercase; letter-spacing:.04em; color:#fff; font-weight:700;
  min-height:2.6em; display:flex; align-items:center; justify-content:center; line-height:1.25; }
.cat-en{ font-size:12px; color:var(--gold-2); margin-top:4px; font-family:'Montserrat',sans-serif; letter-spacing:.04em; }

/* ============================================================
   SERVICES FLOW
   ============================================================ */
.services{ background:var(--bg-2); }
.flow{ display:flex; align-items:stretch; gap:0; flex-wrap:nowrap; }
.flow-step{ flex:1 1 0; min-width:0; display:flex; flex-direction:column; }
.flow-arrow{
  flex:none; width:54px; display:flex; align-items:center; justify-content:center;
  color:var(--gold-2); font-size:22px;
}
.flow-card{ flex:1; display:flex; flex-direction:column; }
.flow-label{
  font-family:'Montserrat',sans-serif; font-size:11px; font-weight:700; letter-spacing:.18em;
  text-transform:uppercase; color:var(--gold-2); text-align:center; margin-bottom:12px;
  min-height:2.4em; display:flex; align-items:center; justify-content:center;
}
.flow-media{
  flex:1; min-height:150px; border-radius:6px; border:1px solid var(--line);
  position:relative; overflow:hidden;
}
.flow-media img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.media-dialux{
  background:
    radial-gradient(60% 80% at 40% 55%,rgba(214,80,40,.55),transparent 60%),
    radial-gradient(50% 70% at 60% 60%,rgba(90,130,220,.5),transparent 65%),
    linear-gradient(160deg,#0a1230,#06122a 60%,#040814);
}
.media-dialux .lux-legend{
  position:absolute; right:10px; top:12px; bottom:12px; width:9px; border-radius:3px;
  background:linear-gradient(180deg,#e8453a,#f0a13a,#f4e84a,#54c463,#2f6fd0);
}
.media-dialux .badge-tl{ position:absolute; left:12px; top:10px; }
.media-layout{
  background:#0c0c0c;
  background-image:
    linear-gradient(rgba(196,150,80,.18) 1px,transparent 1px),
    linear-gradient(90deg,rgba(196,150,80,.18) 1px,transparent 1px);
  background-size:22px 22px;
  border-color:rgba(196,150,80,.28);
}
.media-layout::after{
  content:""; position:absolute; inset:18px; border:1px solid rgba(196,150,80,.4);
}
.media-real{
  background:
    radial-gradient(40% 60% at 50% 40%,rgba(214,168,99,.4),transparent 60%),
    linear-gradient(180deg,#1c1812,#120f0b);
}
.badge-tl{
  font-family:'Montserrat',sans-serif; font-size:9px; font-weight:700; letter-spacing:.12em;
  text-transform:uppercase; color:#fff; background:rgba(0,0,0,.55);
  padding:5px 9px; border-radius:3px;
}

/* ============================================================
   WORK PROCESS
   ============================================================ */
.process{ display:flex; align-items:stretch; }
.proc-step{
  background:linear-gradient(180deg,var(--card) 0%,var(--card-2) 100%);
  border:1px solid var(--line); border-radius:4px;
  padding:34px 18px 26px; text-align:center;
  transition:all .3s ease; position:relative; overflow:hidden;
  display:flex; flex-direction:column; align-items:center;
}
.proc-ico{
  width:78px; height:78px; border-radius:50%; border:1px solid var(--line-2);
  display:flex; align-items:center; justify-content:center; margin:0 auto 18px;
  color:var(--gold-2); font-size:28px; position:relative; transition:all .3s ease; flex:none;
}
.proc-step:hover .proc-ico{ border-color:var(--gold-2); background:rgba(196,150,80,.08); }
.proc-title{ font-size:13.5px; text-transform:uppercase; letter-spacing:.03em; color:#fff; font-weight:700; margin-bottom:8px; }
.proc-step p{ font-size:12.5px; color:var(--muted); line-height:1.5; }
.proc-arrow{
  flex:none; width:40px; display:flex; align-items:center; justify-content:center;
  color:var(--gold-soft); font-size:18px;
}

/* ============================================================
   PROJECTS
   ============================================================ */
#projCarousel .item{
  background:linear-gradient(180deg,var(--card) 0%,var(--card-2) 100%);
  border:1px solid var(--line);
  border-radius:4px;
  padding:0;
  transition:all .3s ease;
  position:relative;
  overflow:hidden;
}
#projCarousel .proj-card{ aspect-ratio:auto; transition:none; transform:none; background:none; border:none; }
.proj-card{ position:relative; border-radius:6px; overflow:hidden; height:280px; display:block; }
img.proj-photo{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; transition:transform .6s ease; z-index:0; }
.proj-card:hover .proj-photo{ transform:scale(1.06); }
.proj-1{ background:radial-gradient(50% 70% at 50% 60%,rgba(214,168,99,.45),transparent 65%),linear-gradient(180deg,#161310,#0c0b09); }
.proj-2{ background:radial-gradient(50% 60% at 55% 45%,rgba(120,150,210,.4),transparent 65%),linear-gradient(180deg,#10141f,#080a0f); }
.proj-3{ background:radial-gradient(45% 60% at 50% 50%,rgba(214,120,60,.42),transparent 60%),linear-gradient(180deg,#1a120c,#0c0806); }
.proj-4{ background:radial-gradient(60% 70% at 50% 40%,rgba(214,168,99,.32),transparent 65%),linear-gradient(180deg,#15130f,#0b0a08); }
.proj-overlay{
  padding:12px 14px 16px;
}
.proj-name{ font-size:15px; text-transform:uppercase; letter-spacing:.03em; color:#fff; font-weight:700; }
.proj-loc{ font-size:12.5px; color:var(--gold-2); margin-top:4px; }

/* ============================================================
   SERVICE CARDS (Dịch vụ)
   ============================================================ */
/* equal-height columns for service cards */
#services .row{ display:flex; flex-wrap:wrap; margin-bottom:-24px; }
#services .row>[class*="col-"]{ display:flex; margin-bottom:24px; }
.svc-card{
  background:var(--bg-2); border:1px solid var(--line); border-radius:6px;
  padding:24px 22px; display:flex; gap:16px; align-items:flex-start; height:100%;
  transition:border-color .3s ease, transform .3s ease;
  box-sizing:border-box;
}
.svc-card:hover{ border-color:var(--gold-soft); transform:translateY(-4px); }
.svc-ico{ font-size:30px; color:var(--gold-2); flex:none; line-height:1; margin-top:2px; }
.svc-card h4{ font-size:15px; text-transform:none; letter-spacing:.01em; color:#fff; font-weight:700; margin-bottom:7px; }
.svc-card p{ font-size:13px; color:var(--muted); line-height:1.55; }

/* ============================================================
   KNOWLEDGE / BLOG CARDS (Kiến thức nổi bật)
   ============================================================ */
.post-card{
  display:flex; flex-direction:row; align-items:stretch; height:100%;
  background:var(--bg-2); border:1px solid var(--line); border-radius:6px;
  padding:0; margin-bottom:24px; overflow:hidden; transition:border-color .3s ease, transform .3s ease;
}
.post-card:hover{ border-color:var(--gold-soft); transform:translateY(-4px); }
.post-thumb{ width:130px; flex:none; overflow:hidden; }
.post-thumb img{ width:100%; height:100%; object-fit:cover; display:block; }
.post-body{ padding:14px; flex:1; }
#knowledge .post-card{ flex-direction:row !important; align-items:stretch; }
#knowledge .post-thumb{ width:130px; flex:none; height:auto; }
#knowledge .post-body{ padding:14px; flex:1; }
.pt-1{ background:radial-gradient(60% 70% at 50% 55%,rgba(214,168,99,.4),transparent 65%),linear-gradient(180deg,#171310,#0c0a08); }
.pt-2{ background:radial-gradient(60% 70% at 50% 50%,rgba(120,150,210,.36),transparent 65%),linear-gradient(180deg,#10141d,#080a0f); }
.pt-3{ background:radial-gradient(55% 70% at 50% 50%,rgba(214,120,60,.38),transparent 62%),linear-gradient(180deg,#1a120c,#0c0806); }
.post-body h4{ font-size:14.5px; color:#fff; font-weight:700; line-height:1.3; margin-bottom:7px; }
.post-card:hover .post-body h4{ color:var(--gold-2); }
.post-body p{ font-size:12.5px; color:var(--muted); line-height:1.5; }

/* ============================================================
   BRANDS
   ============================================================ */
.brands{ background:var(--bg-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:46px 0; }
.brands-title{
  text-align:center; font-family:'Montserrat',sans-serif; font-size:11px; font-weight:600;
  letter-spacing:.2em; text-transform:uppercase; color:var(--muted-2); margin-bottom:30px;
}
.brand-logo{
  text-align:center; font-family:'Montserrat',sans-serif; font-weight:800; font-size:22px;
  color:#9a9a9a; letter-spacing:.02em; opacity:.8; transition:all .3s ease;
  display:flex; align-items:center; justify-content:center; height:46px;
}
.brand-logo:hover{ color:#fff; opacity:1; }
.brand-logo small{ font-size:11px; font-weight:600; letter-spacing:.2em; display:block; }

/* ============================================================
   ABOUT
   ============================================================ */
.about{ background:var(--bg); }
.about-head h2{ font-size:28px; text-transform:none; line-height:1.35; font-weight:800; margin-bottom:18px; }
.about p{ font-size:14.5px; color:var(--muted); margin-bottom:16px; }
.about-media{ display:grid; grid-template-columns:repeat(3,1fr); gap:10px; height:300px; }
.about-img{ border-radius:6px; border:1px solid var(--line); position:relative; overflow:hidden; }
.about-img img{ width:100%; height:100%; object-fit:cover; display:block; }
.about-img.am1{ background:radial-gradient(60% 70% at 50% 40%,rgba(196,150,80,.32),transparent 60%),linear-gradient(180deg,#191512,#0d0b09); }
.about-img.am2{ background:radial-gradient(60% 60% at 50% 45%,rgba(120,150,210,.3),transparent 60%),linear-gradient(180deg,#11141d,#080a0f); }
.about-img.am3{ background:radial-gradient(50% 60% at 50% 50%,rgba(214,168,99,.3),transparent 60%),linear-gradient(180deg,#171411,#0c0a08); }

.trust-bar{ margin-top:46px; padding-top:34px; border-top:1px solid var(--line); }
.trust{ display:flex; gap:14px; align-items:flex-start; padding: 10px 0;}
.trust .t-ico{ color:var(--gold-2); font-size:24px; flex:none; margin-top:2px; }
.trust h5{ font-size:13.5px; line-height: 20px; color:#fff; text-transform:uppercase; letter-spacing:.02em; font-weight:700; margin-bottom:5px; }
.trust p{ font-size:12.5px; color:var(--muted); margin:0; line-height:1.5; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{ background:var(--bg-3); padding:60px 0 0; border-top:1px solid var(--line); position:relative; }
.foot-about p{ font-size:13px; color:var(--muted); margin-top:18px; max-width:300px; }
.foot-col h6{
  font-family:'Montserrat',sans-serif; font-size:12px; font-weight:700; letter-spacing:.14em;
  text-transform:uppercase; color:#fff; margin-bottom:18px;
}
.foot-col ul{ list-style:none; padding:0; margin:0; }
.foot-col li{ margin-bottom:11px; }
.foot-col a{ font-size:13.5px; color:var(--muted); }
.foot-col a:hover{ color:var(--gold-2); }
.foot-contact{ list-style:none; padding-left:0; margin:0; }
.foot-contact li{ display:flex; gap:11px; font-size:13.5px; color:var(--muted); margin-bottom:11px; }
.foot-contact i{ color:var(--gold-2); margin-top:4px; width:16px; text-align:center; flex:none; }
.foot-social{ display:flex; gap:10px; margin-top:20px; }
.foot-social a{
  width:34px; height:34px; border-radius:50%; border:1px solid var(--line-2);
  display:flex; align-items:center; justify-content:center; color:#cfcfcf; font-size:14px;
}
.foot-social a:hover{ background:var(--gold); border-color:var(--gold); color:#1a1308; }
.foot-bottom{ border-top:1px solid var(--line); margin-top:46px; padding:22px 0; }
.foot-bottom p{ font-size:12.5px; color:var(--muted-2); }

/* back to top */
.to-top{
  position:fixed; right:26px; bottom:26px; z-index:900;
  width:46px; height:46px; border-radius:50%;
  background:var(--gold); color:#1a1308; border:0;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  font-size:14px; cursor:pointer; opacity:0; visibility:hidden; transform:translateY(12px);
  transition:all .3s ease; box-shadow:0 10px 26px rgba(0,0,0,.5);
}
.to-top.show{ opacity:1; visibility:visible; transform:translateY(0); }
.to-top:hover{ background:var(--gold-2); }
.to-top span{ font-size:8px; font-weight:700; letter-spacing:.1em; font-family:'Montserrat',sans-serif; }

/* ---------- owl tweaks — global nav override ---------- */
.owl-theme .owl-nav{ margin-top:0; }

/* carousel wrapper — adds horizontal room so nav buttons don't get clipped */
.owl-carousel{ position:relative; }

.owl-theme .owl-nav .owl-prev,
.owl-theme .owl-nav .owl-next{
  width:44px; height:44px; border-radius:50%; margin:0;
  background:var(--bg-2) !important;
  border:1px solid var(--line-2) !important;
  color:#dcdcdc !important;
  display:inline-flex; align-items:center; justify-content:center;
  transition:background .25s, border-color .25s, color .25s, transform .2s;
  position:absolute; top:50%; transform:translateY(-50%);
}
.owl-theme .owl-nav .owl-prev{ left:8px; }
.owl-theme .owl-nav .owl-next{ right:8px; }
.owl-theme .owl-nav .owl-prev:hover,
.owl-theme .owl-nav .owl-next:hover{
  background:var(--gold) !important;
  border-color:var(--gold) !important;
  color:#1a1308 !important;
  transform:translateY(-50%) scale(1.08);
}
.owl-theme .owl-nav .owl-prev.disabled,
.owl-theme .owl-nav .owl-next.disabled{ opacity:.3; pointer-events:none; }

/* hide font icon, replace with CSS chevron arrow */
.owl-theme .owl-nav .owl-prev *,
.owl-theme .owl-nav .owl-next *{ display:none; }
.owl-theme .owl-nav .owl-prev::before,
.owl-theme .owl-nav .owl-next::before{
  content:""; display:block; flex:none;
  width:11px; height:11px;
  border-top:2.5px solid currentColor;
  border-right:2.5px solid currentColor;
  border-radius:1px;
}
.owl-theme .owl-nav .owl-prev::before{ transform:rotate(-135deg) translate(-2px, 2px); }
.owl-theme .owl-nav .owl-next::before{ transform:rotate(45deg) translate(-2px, 2px); }

/* thumbnail strip — smaller */
.pd-thumb-strip .owl-theme .owl-nav .owl-prev,
.pd-thumb-strip .owl-theme .owl-nav .owl-next{
  width:30px; height:30px;
}
.pd-thumb-strip .owl-theme .owl-nav .owl-prev::before,
.pd-thumb-strip .owl-theme .owl-nav .owl-next::before{
  width:8px; height:8px; border-width:2px;
}
.pd-thumb-strip .owl-theme .owl-nav .owl-prev{ left:4px; }
.pd-thumb-strip .owl-theme .owl-nav .owl-next{ right:4px; }
.owl-carousel .owl-stage{ display:flex; }
.owl-carousel .owl-item{ display:flex; }
.owl-carousel .owl-item > *{ width:100%; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:991px){
  .main-nav{
    position:fixed; top:0; right:-280px; width:280px; height:100vh;
    background:var(--bg-2); flex-direction:column; align-items:flex-start;
    padding:90px 28px; gap:22px; transition:right .3s ease; z-index:1001;
    box-shadow:-12px 0 40px rgba(0,0,0,.6);
  }
  .main-nav.open{ right:0; }
  .main-nav{ gap:18px; overflow-y:auto; align-items:stretch; }
  .nav-item{ flex-direction:column; align-items:flex-start; }
  .nav-parent{ width:100%; }
  .sub-menu{
    position:static !important; top:auto !important; left:auto !important;
    transform:none !important; opacity:1 !important; visibility:visible !important;
    min-width:0; width:100%; background:transparent; border:0;
    box-shadow:none; padding:0 0 0 12px; margin-top:0;
    max-height:0; overflow:hidden; transition:max-height .35s ease;
  }
  .nav-item.open-sub .sub-menu{ max-height:520px; padding:6px 0 4px 12px; }
  .nav-item.open-sub .nav-parent i{ transform:rotate(180deg); }
  .sub-menu a{ padding:8px 0; white-space:normal; text-align:left; }
  .nav-toggle{ display:block; }
  .header-search{ display:none; }
  .nav-search-mobile{
    display:flex; align-items:center; gap:10px;
    padding:10px 16px !important; margin-top:8px;
    border:1px solid var(--line-2); border-radius:6px;
    color:var(--muted); font-size:14px;
    background:rgba(255,255,255,.04);
    transition:all .2s ease;
  }
  .nav-search-mobile:hover{ border-color:var(--gold-2); color:var(--gold-2); background:rgba(196,150,80,.07); }
  .nav-search-mobile i{ font-size:15px; }
  .hero h1{ font-size:42px; }
  .hero-photo{ width:100%; opacity:.45; }
  .feature{ flex:1 1 50%; border-bottom:1px solid var(--line); }
  .feature:nth-child(2){ border-right:0; }
  .flow{ flex-direction:column; gap:14px; }
  .flow-arrow{ width:100%; height:34px; transform:rotate(90deg); }
  .about-media{ margin-top:30px; }
}
@media (max-width:767px){
  .section{ padding:48px 0; }
  .hero h1{ font-size:28px; }
  .hero-content{ padding:120px 0 50px; }
  .feature{ flex:1 1 100%; border-right:0; }
  .section-title{ font-size:21px; }
  .about-media{ grid-template-columns:1fr; height:auto; }
  .about-img{ height:160px; }
  /* footer columns spacing on mobile */
  .site-footer .row>[class*="col-"]{ margin-bottom:32px; }
  .foot-bottom{ margin-top:0; }
  /* process — stack vertically on mobile */
  .process{ flex-direction:column; align-items:center; }
  .proc-step{ width:100%; max-width:320px; }
  .proc-arrow{ width:100%; height:28px; padding-top:0; display:flex; align-items:center; justify-content:center; }
  .proc-arrow i{ transform:rotate(90deg); }
  /* service cards — reset flex on mobile so Bootstrap handles columns */
  #services .row{ display:block; }
  #services .row>[class*="col-"]{ display:block; margin-bottom:0; }
  .svc-card{ margin-bottom:16px; }
  /* post cards — stack thumb and body */
  .post-card{ flex-direction:column; }
  .post-thumb{ width:100%; height:160px; flex:none; }
}
/* ============================================================
   FOOTER TOOLS (float buttons — phone / facebook / zalo / calculator)
   ============================================================ */
.footer-tools{position:fixed;right:40px;top:30%;z-index:999999;}
.footer-tools div{
    width:60px;height:60px;background-color:#fff;border-radius:5px;
    display:flex;justify-content:center;align-items:center;flex-direction:column;
    cursor:pointer;margin-bottom:10px;border:1px solid var(--gold-soft);
}
.footer-tools div .icon-float{display:block;}
.footer-tools div .icon-float-hover{display:none;}
.footer-tools div:hover{background-color:var(--gold-soft);}
.footer-tools div:hover .icon-float{display:none;}
.footer-tools div:hover .icon-float-hover{display:block;}
.footer-tools div:last-child{margin-bottom:0;}
.footer-tools-calculator{position:relative;}
.footer-tools-calculator span{
    height:60px;background-color:var(--gold);width:210px;
    position:absolute;top:0;right:62px;z-index:999999;display:none;
    color:#1a1308;font-size:15px;text-align:center;border-radius:5px;line-height:60px;
    font-family:'Montserrat',sans-serif;font-weight:600;letter-spacing:.04em;
}
.footer-tools-calculator:hover span{display:block;}

/* PAGINATION */
.pagination{display:flex;justify-content:center;align-items:center;gap:5px;margin:20px 0;}
.pagination span{display:inline-block;}
.pagination span a{
    display:inline-block;height:35px;line-height:30px;padding:0 15px;background-color:var(--bg-2);
    color:var(--muted);text-decoration:none;border:1px solid var(--line);border-radius:4px;
    transition:all 0.3s ease;font-size:18px;text-align:center;
}
.pagination span a:hover{background-color:var(--gold);color:#1a1308;border-color:var(--gold);}
@media(max-width:767px){
    .footer-tools{right:10px;}
    .footer-tools div{width:40px;height:40px;}
    .footer-tools div .icon-float{width:20px;height:20px;}
}

/* ============================================================
   PRODUCTS PAGE (san-pham)
   ============================================================ */
body.inner-page{ padding-top:0; }
.site-header.solid{
  position:relative; background:#0a0a0a; border-bottom:1px solid var(--line); padding:18px 0;
}

/* page banner */
.page-banner{ position:relative; overflow:hidden; background:#0a0a0a; padding:98px 0 90px; border-bottom:1px solid var(--line); }
.page-banner.product-page-banner{padding: 128px 0 120px;}
.page-banner-bg{
  position:absolute; inset:0; z-index:0;
  background-image:
    linear-gradient(90deg,rgba(10,10,10,.96) 0%,rgba(10,10,10,.82) 32%,rgba(10,10,10,.45) 60%,rgba(10,10,10,.55) 100%),
    url('../images/product-banner.jpg');
  background-size:cover; background-position:center;
}
.page-banner.product-page-banner .page-banner-bg{
  background-image:
          linear-gradient(90deg,rgba(10,10,10,.96) 0%,rgba(10,10,10,.82) 32%,rgba(10,10,10,.45) 60%,rgba(10,10,10,.55) 100%),
          url('../images/main-banner-2.jpg');
}
.page-banner .container{ position:relative; z-index:1; }
.page-banner h1{ font-size:38px; text-transform:uppercase; letter-spacing:.05em; font-weight:800; }
.page-banner h1.pbi-h1-detail {font-size: 20px; line-height: 30px;}
.breadcrumb-eco{ margin-top:12px; font-family:'Montserrat',sans-serif; font-size:12.5px; letter-spacing:.05em; }
.breadcrumb-eco a{ color:var(--muted); }
.breadcrumb-eco a:hover{ color:var(--gold-2); }
.breadcrumb-eco .sep{ color:var(--muted-2); margin:0 8px; }
.breadcrumb-eco .cur{ color:var(--gold-2); }

/* sidebar */
.filter-block{ margin-bottom:22px; padding-bottom:22px; border-bottom:1px solid var(--line); }
.filter-block:last-child{ border-bottom:0; }
.mobile-filter-btn{
  display:none; align-items:center; gap:8px; width:100%; margin-bottom:16px;
  padding:10px 16px; background:rgba(255,255,255,.05); border:1px solid var(--line);
  border-radius:6px; color:#fff; font-size:14px; font-weight:500; cursor:pointer;
  transition:background .2s;
}
.mobile-filter-btn:hover{ background:rgba(255,255,255,.09); }
.mobile-filter-btn.active{ border-color:var(--gold-2); color:var(--gold-2); }
.filter-title{
  font-family:'Montserrat',sans-serif; font-size:13px; font-weight:700; letter-spacing:.12em;
  text-transform:uppercase; color:#fff; margin-bottom:16px;
  display:flex; align-items:center; justify-content:space-between;
}
.cat-list{ list-style:none; padding:0; margin:0; }
.cat-list li{ margin-bottom:2px; }
.cat-list a{
  display:block; padding:8px 12px; font-size:14px; color:var(--muted); border-radius:4px;
  border:1px solid var(--line); border-left-width:2px; transition:all .2s ease;
}
.cat-list a:hover{ color:#fff; background:rgba(255,255,255,.03); }
.cat-list a.active{ color:var(--gold-2); border-color:var(--gold-2); background:rgba(196,150,80,.07); font-weight:600; }
.cat-list-check{
  display:block; padding:8px 12px; font-size:14px; color:var(--muted); border-radius:4px;
  border:1px solid var(--line); border-left-width:2px; transition:all .2s ease;
  font-weight:normal; cursor:pointer; margin-bottom:2px;
}
.cat-list-check:hover{ color:#fff; background:rgba(255,255,255,.03); }
.cat-list-check.active{ color:var(--gold-2); border-color:var(--gold-2); background:rgba(196,150,80,.07); font-weight:600; }
.cat-list-check input[type="checkbox"]{ margin-right:8px; vertical-align:middle; }
.filter-toggle{ color:inherit; text-decoration:none !important; display:flex; align-items:center; justify-content:space-between; width:100%; }
.filter-toggle .fa-chevron-down{ transition:transform .25s ease; }
.filter-toggle.collapsed .fa-chevron-down{ transform:rotate(-90deg); }

/* toolbar */
.shop-toolbar{
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
  padding-bottom:20px; margin-bottom:26px; border-bottom:1px solid var(--line);
}
.shop-count{ font-size:13.5px; color:var(--muted); }
.shop-count strong{ color:#fff; font-weight:600; }
.shop-sort{ display:flex; align-items:center; gap:10px; }
.shop-sort label{ font-size:13px; color:var(--muted); margin:0; font-weight:400; }
.sort-select{
  background:var(--bg-2); color:#e9e9e9; border:1px solid var(--line-2); border-radius:3px;
  padding:8px 14px; font-size:13px; font-family:'Be Vietnam Pro',sans-serif; outline:none;
  cursor:pointer;
}
.sort-select:focus{ border-color:var(--gold-2); }

/* product grid */
.product-grid{ margin-left:-10px; margin-right:-10px; }
.prod-col{ padding:10px; }
.prod-card{
  background:var(--card); border:1px solid var(--line); border-radius:6px; overflow:hidden;
  height:100%; transition:all .3s ease;
}
.prod-card:hover{ transform:translateY(-5px); border-color:var(--line-2); box-shadow:0 18px 40px rgba(0,0,0,.45); }
.prod-thumb{ background:#fff; aspect-ratio:4/3; overflow:hidden; }
.prod-thumb img{ width:100%; height:100%; transition:transform .5s ease; display:block; }
.prod-card:hover .prod-thumb img{ transform:scale(1.05); }
.prod-info{ padding:18px 18px 20px; }
.prod-code{ font-family:'Montserrat',sans-serif; font-size:14px; font-weight:700; letter-spacing:.04em; color:#fff; }
.prod-name{ font-size:13px; color:var(--gold-2); margin-top:5px; }
.prod-spec{ font-size:12px; color:var(--muted); margin-top:8px; letter-spacing:.02em; }
.prod-spec span{ color:var(--muted-2); margin:0 3px; }
.prod-btn{
  display:inline-block; margin-top:15px; font-family:'Montserrat',sans-serif; font-size:11px;
  font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:#e9e9e9;
  border:1px solid var(--line-2); border-radius:2px; padding:9px 18px; transition:all .25s ease;
}
.prod-btn:hover{ background:var(--gold); border-color:var(--gold); color:#1a1308; }

/* shop pagination */
.shop-pager{ display:flex; align-items:center; justify-content:center; gap:8px; margin-top:42px; }
.shop-pager .pg{
  min-width:38px; height:38px; padding:0 8px; border-radius:3px; border:1px solid var(--line-2);
  display:flex; align-items:center; justify-content:center; font-family:'Montserrat',sans-serif;
  font-size:13px; font-weight:600; color:#dcdcdc; transition:all .2s ease;
}
.shop-pager .pg:hover{ border-color:var(--gold-2); color:var(--gold-2); }
.shop-pager .pg.active{ background:var(--gold); border-color:var(--gold); color:#1a1308; }
.shop-pager .pg.disabled{ opacity:.4; pointer-events:none; }
.shop-pager .pg-dots{ color:var(--muted-2); padding:0 4px; }

/* FuelPHP Pagination → shop-pager style */
.shop-pager .pagination{ display:flex; align-items:center; justify-content:center; gap:8px; margin:0; }
.shop-pager .pagination span{ display:flex; }
.shop-pager .pagination span a{
  min-width:38px; height:38px; padding:0 8px; border-radius:3px; border:1px solid var(--line-2);
  display:flex; align-items:center; justify-content:center;
  font-family:'Montserrat',sans-serif; font-size:13px; font-weight:600;
  color:#dcdcdc; background:transparent; line-height:1; transition:all .2s ease;
}
.shop-pager .pagination span a:hover{ border-color:var(--gold-2); color:var(--gold-2); }
.shop-pager .pagination span.current a{ background:transparent; border-color:var(--gold-2); color:var(--gold-2); }
.shop-pager .pagination span.previous-inactive a,
.shop-pager .pagination span.next-inactive a{ opacity:.4; pointer-events:none; }

/* responsive — products */
@media(max-width:991px){
  .shop-sidebar{ margin-bottom:24px; }
  .cat-list a{
    border-left:none; border:1px solid rgba(255,255,255,.25); border-radius:20px;
    padding:6px 14px; font-size:13px; text-align:center; white-space:nowrap;
    overflow:hidden; text-overflow:ellipsis; color:rgba(255,255,255,.75);
    background:rgba(255,255,255,.05);
  }
  .cat-list a:hover{ border-color:rgba(255,255,255,.45); color:#fff; background:rgba(255,255,255,.09); }
  .cat-list a.active{ border-color:var(--gold-2); color:var(--gold-2); background:rgba(196,150,80,.15); }
}
@media(max-width:767px){
  .page-banner{ padding:54px 0 48px; }
  .page-banner h1{ font-size:28px; }
  .prod-col{ width:50%; float:left; }
  .shop-toolbar{ flex-direction:column; align-items:flex-start; }
  .mobile-filter-btn{ display:flex; }
  .sidebar-col{ display:none; }
  .sidebar-col.open{ display:block; margin-bottom:20px; }
  .filter-block{ margin-bottom:16px; padding-bottom:16px; border-bottom:1px solid var(--line); }
  .filter-block:last-child{ border-bottom:0; }
  .cat-list{ display:block; }
  .cat-list li{ margin-bottom:2px; flex:none; }
  .cat-list a{
    border-left:2px solid var(--line); border-right:1px solid var(--line);
    border-top:1px solid var(--line); border-bottom:1px solid var(--line);
    border-radius:4px; padding:8px 12px; font-size:14px; text-align:left;
    white-space:normal; color:var(--muted);
  }
}
@media(max-width:420px){
  .prod-col{ width:100%; float:none; }
}

/* ============================================================
   PRODUCT DETAIL PAGE
   ============================================================ */
.pd-gallery{ position:sticky; top:90px; }
.pd-main-img{
  background:var(--card); border:1px solid var(--line); border-radius:8px;
  overflow:hidden; aspect-ratio:1/1; display:flex; align-items:center; justify-content:center;
}
.pd-main-img img{ width:100%; height:100%; object-fit:contain; display:block; transition:opacity .2s ease; }
.pd-thumb-strip{ margin-top:12px; position:relative; }
.pdc-item{
  border:1px solid var(--line); border-radius:5px; overflow:hidden; cursor:pointer;
  aspect-ratio:1/1; background:var(--card); transition:border-color .2s ease;
}
.pdc-item img{ width:100%; height:100%; object-fit:contain; display:block; }
.pdc-item.active,.pdc-item:hover{ border-color:var(--gold-2); }

.pd-info-panel{ padding-left:10px; }
.pd-badge-cat{
  display:inline-flex; align-items:center; gap:7px;
  font-family:'Montserrat',sans-serif; font-size:11px; font-weight:600; letter-spacing:.1em;
  text-transform:uppercase; color:var(--gold-2); border:1px solid rgba(196,150,80,.3);
  border-radius:30px; padding:5px 14px; margin-bottom:16px;
}
.pd-title{
  font-size:22px; font-weight:800; letter-spacing:.02em; color:#fff;
  line-height:1.2; margin-bottom:18px;
}
.pd-desc{ font-size:14.5px; color:var(--muted); line-height:1.75; margin-bottom:28px; text-align: justify; }
.pd-desc p{ margin-bottom:10px; }
.pd-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:28px; }
.pd-meta{ list-style:none; padding:0; margin:0; }
.pd-meta li{
  display:flex; align-items:center; gap:12px; padding:10px 0;
  border-bottom:1px solid var(--line); font-size:13.5px; color:var(--muted);
}
.pd-meta li span{ color:#fff; font-weight:600; min-width:100px; }

/* specs — box-spec-category structure from Form::make_list_options_layout() */
.pd-specs-block{ margin-top:8px; }
.pd-specs-block>.row>[class*="col-"]{ margin-bottom:24px; }
.box-spec-category{
  background:var(--bg-2); border:1px solid var(--line); border-radius:8px;
  overflow:hidden; height:100%;
}
.box-spec-category>h3{
  margin:0; padding:14px 20px;
  background:rgba(196,150,80,.08); border-bottom:1px solid var(--line);
  font-family:'Montserrat',sans-serif; font-size:12px; font-weight:700;
  letter-spacing:.1em; text-transform:uppercase; color:var(--gold-2);
}
.box-spec-category-content{ padding:0; }
.bscc-item{ border-bottom:1px solid var(--line); }
.bscc-item:last-child{ border-bottom:0; }
.bscc-item>.row{ margin:0; }
.bscc-item>.row>[class*="col-"]{
  padding:11px 20px; font-size:13.5px;
}
.bscc-item>.row>[class*="col-"]:first-child{
  color:#fff; font-weight:600; border-right:1px solid var(--line);
}
.bscc-item>.row>[class*="col-"]:last-child{ color:var(--muted); }
.bscc-item:hover>.row>[class*="col-"]{ background:rgba(255,255,255,.02); }

/* packings — show table on desktop, cards on mobile */
.pd-packings-cards{ display:none; }
@media(max-width:767px){
  .pd-packings-table{ display:none; }
  .pd-packings-cards{ display:block; }
}

/* packings mobile cards */
.packing-card{ background:var(--bg-2); border:1px solid var(--line); border-radius:8px; padding:14px 16px; margin-bottom:12px; }
.packing-card-row{ display:flex; justify-content:space-between; align-items:center; padding:5px 0; border-bottom:1px solid var(--line); font-size:13.5px; }
.packing-card-row:last-child{ border-bottom:none; }
.packing-card-row span:first-child{ color:var(--text); font-size:12px; font-weight:700; text-transform:none; letter-spacing:.06em; flex:none; margin-right:12px; }
.packing-card-row span:last-child{ color:var(--muted); text-align:right; }

/* packings table */
.pd-packings{ background:var(--bg-2); border:1px solid var(--line); border-radius:8px; overflow:hidden; }
.pd-packings .table{ margin-bottom:0; color:var(--text); }
.pd-packings .table thead tr{ background:rgba(196,150,80,.08); }
.pd-packings .table thead th{
  border-color:var(--line); color:var(--gold-2);
  font-family:'Montserrat',sans-serif; font-size:12px; font-weight:700;
  letter-spacing:.08em; text-transform:uppercase; padding:13px 16px;
}
.pd-packings .table tbody tr{ border-color:var(--line); }
.pd-packings .table tbody td{ border-color:var(--line); color:var(--muted); padding:11px 16px; font-size:13.5px; }
.pd-packings .table tbody tr:hover td{ background:rgba(255,255,255,.03); color:#fff; }
.pd-packings .table-bordered{ border-color:var(--line); }

/* gallery prev/next nav buttons */
.pd-main-nav{
  position:absolute; inset:0; display:flex;
  align-items:center; justify-content:space-between;
  padding:0 12px; pointer-events:none;
}
.pd-nav-btn{
  pointer-events:all;
  width:38px; height:38px; border-radius:50%;
  background:rgba(0,0,0,.55); border:1px solid rgba(255,255,255,.18);
  color:#fff; font-size:13px; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  transition:background .2s, border-color .2s;
  opacity:0; transition:opacity .25s;
}
.pd-main-img:hover .pd-nav-btn{ opacity:1; }
.pd-nav-btn:hover{ background:var(--gold); border-color:var(--gold); color:#1a1308; }

/* project detail meta list */
.proj-detail-meta{ margin-bottom:24px; }
.proj-detail-meta li{
  display:flex; align-items:baseline; gap:10px;
  padding:10px 0; border-bottom:1px solid var(--line);
  font-size:14px;
}
.proj-detail-meta li:first-child{ border-top:1px solid var(--line); }
.proj-detail-meta li span{ color:var(--muted); min-width:130px; flex:none; }
.proj-detail-meta li strong{ color:#fff; font-weight:600; }

@media(max-width:991px){
  .pd-gallery{ position:static; margin-bottom:32px; }
  .pd-info-panel{ padding-left:0; }
}
@media(max-width:767px){
  .pd-title{ font-size:22px; }
  .pd-actions{ flex-direction:column; }
  .pd-actions .btn-eco{ justify-content:center; }
  .pdc-item{ aspect-ratio:auto; height:64px; }
  .pd-main-img{ aspect-ratio:4/3; }
}

/* ============================= PROJECT LIST PAGE ============================= */
.proj-list-section{ padding-bottom:80px; }
.proj-grid{ margin-bottom:40px; }
.proj-col{ margin-bottom:28px; }

/* overlay card — body sits on top of image */
.proj-card{
  display:block; text-decoration:none;
  position:relative; border-radius:10px; overflow:hidden;
  aspect-ratio:4/3;
  transition:transform .3s, box-shadow .3s;
}
.proj-card:hover{ transform:translateY(-4px); box-shadow:0 16px 40px rgba(0,0,0,.6); text-decoration:none; }

.proj-card-img{
  position:absolute; inset:0;
  width:100%; height:100%; object-fit:cover;
  transition:transform .5s ease;
}
.proj-card:hover .proj-card-img{ transform:scale(1.06); }

/* gradient overlay always present, stronger on hover */

.proj-card-body{
  position:absolute; inset:0; z-index:2;
  display:flex; flex-direction:column; justify-content:flex-end;
  padding:22px 22px 20px;
  background:linear-gradient(to top, rgba(0,0,0,.82) 0%, rgba(0,0,0,.4) 45%, transparent 75%);
}

/* meta hidden by default, slides up on hover */
.proj-card-meta{
  list-style:none; margin:0 0 10px; padding:0;
  display:flex; flex-direction:column; gap:5px;
  overflow:hidden; max-height:0;
  opacity:0; transform:translateY(8px);
  transition:max-height .35s ease, opacity .3s ease, transform .3s ease;
}
.proj-card:hover .proj-card-meta{
  max-height:120px; opacity:1; transform:translateY(0);
}
.proj-card-meta li{ font-size:12.5px; color:rgba(255,255,255,.8); }
.proj-card-meta li i{ color:var(--gold); margin-right:6px; width:13px; }

.proj-card-title{
  font-family:'Montserrat',sans-serif; font-size:15px; font-weight:700;
  color:#fff; margin:0 0 12px; line-height:1.4;
}
.proj-card-btn{
  display:inline-flex; align-items:center; gap:7px;
  font-size:11.5px; font-weight:700; font-family:'Montserrat',sans-serif;
  letter-spacing:.08em; text-transform:uppercase;
  color:var(--gold-2); transition:gap .25s;
}
.proj-card:hover .proj-card-btn{ gap:11px; }

@media(max-width:767px){
  .proj-col{ margin-bottom:16px; }
  .proj-card{ aspect-ratio:3/2; }
  .proj-card-meta{ max-height:120px; opacity:1; transform:translateY(0); }
}

/* ============================= KNOWLEDGE / TECHNOLOGY PAGES ============================= */
.post-list-section{ padding-bottom:80px; }
.post-grid{ margin-bottom:40px; }
.post-col{ margin-bottom:28px; }

.post-card{
  display:flex; flex-direction:column;
  background:var(--card); border:1px solid var(--line); border-radius:10px;
  overflow:hidden; height:100%;
  text-decoration:none; transition:transform .3s, box-shadow .3s;
}
.post-card:hover{ transform:translateY(-4px); box-shadow:0 12px 32px rgba(0,0,0,.5); text-decoration:none; }

.post-card-img{ overflow:hidden; aspect-ratio:16/9; flex:none; }
.post-card-img img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .5s ease;
}
.post-card:hover .post-card-img img{ transform:scale(1.05); }

.post-card-body{
  display:flex; flex-direction:column; flex:1;
  padding:20px 22px 22px; gap:10px;
}
.post-card-title{
  font-family:'Montserrat',sans-serif; font-size:15px; font-weight:700;
  color:#fff; margin:0; line-height:1.45;
  transition:color .25s;
}
.post-card:hover .post-card-title{ color:var(--gold-2); }
.post-card-excerpt{ font-size:13.5px; color:var(--muted); margin:0; line-height:1.65; flex:1; }
.post-card-btn{
  display:inline-flex; align-items:center; gap:7px; margin-top:4px;
  font-size:12px; font-weight:700; font-family:'Montserrat',sans-serif;
  letter-spacing:.06em; text-transform:uppercase;
  color:var(--gold-2); transition:gap .25s;
}
.post-card:hover .post-card-btn{ gap:11px; }

/* article detail */
.post-detail-section{ padding-bottom:64px; }
.post-article-cover{
  border-radius:10px; overflow:hidden; margin-bottom:36px;
  border:1px solid var(--line);
}
.post-article-cover img{ width:100%; display:block; }
.post-article-body{
  color:var(--muted); font-size:15.5px; line-height:1.85;
}
.post-article-body h2,.post-article-body h3,.post-article-body h4{
  font-family:'Montserrat',sans-serif; color:#fff; margin:32px 0 14px;
}
.post-article-body p{ margin-bottom:18px; }
.post-article-body img{ max-width:100%; border-radius:6px; margin:12px 0; }
.post-article-body ul,.post-article-body ol{ padding-left:22px; margin-bottom:18px; }
.post-article-body li{ margin-bottom:6px; }
.post-article-body a{ color:var(--gold-2); text-decoration:underline; }
.post-article-body strong{ color:#fff; font-weight:600; }
.post-article-body table{ width:100%; border-collapse:collapse; margin-bottom:18px; }
.post-article-body table th,.post-article-body table td{
  border:1px solid var(--line); padding:10px 14px; font-size:14px;
}
.post-article-body table th{ background:rgba(196,150,80,.08); color:var(--gold-2); }

@media(max-width:767px){
  .post-col{ margin-bottom:18px; }
}

/* ============================= CALCULATE PAGE ============================= */
.calc-card{
  background:linear-gradient(180deg,var(--card) 0%,var(--card-2) 100%);
  border:1px solid var(--line); border-radius:8px; padding:36px 40px 40px;
}
.calc-title{ font-size:18px; font-weight:700; color:#fff; margin-bottom:28px; text-align:center; }
.calc-field{ margin-bottom:18px; }
.calc-field label{ display:block; font-size:13.5px; color:var(--muted); margin-bottom:7px; }
.calc-field input,.calc-field select{
  width:100%; background:var(--bg-3); border:1px solid var(--line-2);
  border-radius:4px; padding:11px 14px;
  color:#fff; font-size:14px; font-family:'Be Vietnam Pro',sans-serif;
  transition:border-color .25s; outline:none; appearance:none;
}
.calc-field input::placeholder{ color:var(--muted-2); }
.calc-field input:focus,.calc-field select:focus{ border-color:var(--gold); }
.calc-field select:disabled{ opacity:.45; cursor:not-allowed; }
.calc-actions{ display:flex; gap:12px; margin-top:10px; }

/* ============================= CONTACT PAGE ============================= */
.contact-section{ padding-bottom:64px; }
.contact-info-panel{ padding-right:24px; margin-bottom:0; }
.contact-panel-title{ font-size:22px; font-weight:800; color:#fff; margin-bottom:8px; }
.contact-panel-sub{ color:var(--muted); margin-bottom:28px; font-size:14.5px; }

.contact-info-list{ list-style:none; margin:0; padding:0; }
.contact-info-list li{
  display:flex; align-items:flex-start; gap:14px;
  padding:15px 0; border-bottom:1px solid var(--line);
}
.contact-info-list li:first-child{ border-top:1px solid var(--line); }
.cil-icon{
  width:38px; height:38px; border-radius:50%; flex:none;
  background:rgba(196,150,80,.1); border:1px solid rgba(196,150,80,.25);
  display:flex; align-items:center; justify-content:center;
  color:var(--gold-2); font-size:14px;
}
.cil-text{ display:flex; flex-direction:column; gap:3px; }
.cil-text span{ font-size:11.5px; color:var(--muted-2); text-transform:uppercase; letter-spacing:.08em; }
.cil-text strong{ font-size:14px; color:#fff; font-weight:500; }
.cil-text strong a{ color:#fff; }
.cil-text strong a:hover{ color:var(--gold-2); }

.contact-form-title{ font-size:17px; font-weight:700; color:#fff; margin-bottom:20px; }
.cf-field{ margin-bottom:14px; }
.cf-field input,.cf-field textarea{
  width:100%; background:var(--bg-3); border:1px solid var(--line-2);
  border-radius:4px; padding:12px 15px;
  color:#fff; font-size:14px; font-family:'Be Vietnam Pro',sans-serif;
  transition:border-color .25s; outline:none;
}
.cf-field input::placeholder,.cf-field textarea::placeholder{ color:var(--muted-2); }
.cf-field input:focus,.cf-field textarea:focus{ border-color:var(--gold); }
.cf-field textarea{ resize:vertical; min-height:110px; }
.cf-actions{ display:flex; gap:12px; flex-wrap:wrap; margin-top:8px; }

.contact-map{
  margin-top:48px; border-radius:10px; overflow:hidden;
  border:1px solid var(--line);
}
.contact-map iframe{ display:block; width:100%; }

@media(max-width:767px){
  .contact-info-panel{ padding-right:0; margin-bottom:36px; }
}

/* ============================= INFO ROW (service / about index) ============================= */
.info-list-section{ padding-bottom:80px; }
.info-row{
  display:flex; align-items:center; gap:64px;
  padding:56px 0; border-bottom:1px solid var(--line);
}
.info-row:first-child{ padding-top:0; }
.info-row:last-child{ border-bottom:0; }
.info-row-reverse{ flex-direction:row-reverse; }

.info-row-img{
  flex:0 0 48%; max-width:48%;
  border-radius:10px; overflow:hidden;
  border:1px solid var(--line);
}
.info-row-img img{ width:100%; display:block; transition:transform .5s; }
.info-row:hover .info-row-img img{ transform:scale(1.03); }

.info-row-body{ flex:1; }
.info-row-title{
  font-size:26px; font-weight:800; color:#fff;
  margin-bottom:16px; line-height:1.35;
}
.info-row-excerpt{
  color:var(--muted); font-size:15px; line-height:1.8;
  margin-bottom:28px;
}

@media(max-width:991px){
  .contact-info-panel{ padding-right:0; margin-bottom:40px; }
  .contact-form-panel{ padding:28px 24px; }
  .info-row{ gap:36px; }
}
@media(max-width:767px){
  .info-row,.info-row-reverse{ flex-direction:column; gap:24px; padding:40px 0; }
  .info-row-img{ flex:none; max-width:100%; width:100%; }
  .info-row-title{ font-size:20px; }
}