:root{
    --primary:#006E5C;
    --primary-deep:#004d40;
    --secondary:#111111;
    --background:#F8F8F8;
    --accent:#D4AF37;
    --text:#1F2937;
    --white:#FFFFFF;
    --muted:#B9B9B4;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{font-family:'Inter',sans-serif; color:var(--text); background:var(--background); line-height:1.6;}
  h1,h2,h3,h4{font-family:'Poppins',sans-serif; font-weight:700; line-height:1.15;}
  .container{max-width:1280px; margin:0 auto; padding:0 32px;}
  .section{padding:120px 0;}
  @media(max-width:767px){.section{padding:64px 0;}}
  .label{display:inline-block; font-family:'Inter',sans-serif; font-weight:600; font-size:13px; letter-spacing:.12em; text-transform:uppercase; color:var(--primary); margin-bottom:14px;}
  .bg-dark{background:var(--secondary); color:var(--white);}
  .bg-dark .label{color:var(--accent);}
  .bg-light{background:var(--background); color:var(--text);}
  h2.section-title{font-size:44px; margin-bottom:16px;}
  @media(max-width:767px){h2.section-title{font-size:32px;}}
  .intro{max-width:640px; color:var(--muted); font-size:17px; margin-bottom:56px;}
  .bg-light .intro{color:#6B7280;}
  .btn{display:inline-flex; align-items:center; justify-content:center; padding:16px 32px; border-radius:4px; font-weight:600; font-size:16px; text-decoration:none; cursor:pointer; transition:transform .25s ease, box-shadow .25s ease; border:2px solid transparent;}
  .btn:hover{transform:translateY(-3px);}
  .btn-primary{background:var(--primary); color:var(--white);}
  .btn-primary:hover{box-shadow:0 12px 28px rgba(0,110,92,.35);}
  .btn-outline{border-color:rgba(255,255,255,.6); color:var(--white); background:transparent;}
  .btn-outline:hover{background:rgba(255,255,255,.1);}
  .btn-white{background:var(--white); color:var(--primary);}
  .btn-whatsapp{background:#25D366; color:var(--white);}

  /* ===== Header ===== */
  header{position:sticky; top:0; z-index:999; background:rgba(255,255,255,.85); backdrop-filter:blur(10px); transition:box-shadow .3s ease;}
  header.scrolled{box-shadow:0 4px 24px rgba(0,0,0,.12);}
  .nav-wrap{display:flex; align-items:center; justify-content:space-between; padding:16px 32px; max-width:1280px; margin:0 auto;}
  .nav-wrap img{height:36px; width:auto; display:block;}
  nav ul{list-style:none; display:flex; gap:36px;}
  nav a{color:var(--secondary); text-decoration:none; font-size:15px; font-weight:500; position:relative; padding-bottom:4px;}
  nav a::after{content:''; position:absolute; left:0; bottom:0; width:0; height:2px; background:var(--primary); transition:width .25s ease;}
  nav a:hover::after{width:100%;}
  .nav-cta{background:var(--primary); color:var(--white); padding:10px 20px; border-radius:4px; font-size:14px; font-weight:600; text-decoration:none;}
  nav li.mobile-cta{display:none;}

  /* ===== Mobile nav ===== */
  .nav-toggle{display:none; flex-direction:column; justify-content:center; gap:5px; width:40px; height:40px; background:none; border:none; cursor:pointer; padding:8px; z-index:1002;}
  .nav-toggle span{display:block; width:24px; height:2px; background:var(--secondary); transition:transform .3s ease, opacity .3s ease;}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle.open span:nth-child(2){opacity:0;}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .nav-overlay{position:fixed; inset:0; background:rgba(0,0,0,.5); opacity:0; pointer-events:none; transition:opacity .3s ease; z-index:1000;}
  .nav-overlay.open{opacity:1; pointer-events:auto;}
  @media(max-width:900px){
    .nav-toggle{display:flex;}
    .nav-wrap>.nav-cta{display:none;}
    nav{position:fixed; top:0; right:0; height:100vh; width:min(300px,80%); background:var(--secondary); transform:translateX(100%); transition:transform .35s ease; box-shadow:-8px 0 32px rgba(0,0,0,.35); padding:100px 28px 32px; z-index:1001; overflow-y:auto;}
    nav.open{transform:translateX(0);}
    nav ul{display:flex; flex-direction:column; gap:6px;}
    nav a{color:var(--white); font-size:17px; display:block; padding:12px 0;}
    nav li.mobile-cta{display:block; margin-top:18px;}
    nav li.mobile-cta a{display:inline-block; text-decoration:none;}
  }

  /* ===== Hero ===== */
  .hero{position:relative; min-height:100vh; display:flex; align-items:center; justify-content:center; text-align:center; overflow:hidden;}
  .hero-bg{position:absolute; inset:0; background-size:cover; background-position:center; filter:saturate(.85) contrast(1.08) sepia(.06); animation:kenburns 22s ease-in-out infinite alternate;}
  @keyframes kenburns{from{transform:scale(1);} to{transform:scale(1.08);}}
  .hero-overlay{position:absolute; inset:0; background:linear-gradient(180deg, rgba(17,17,17,.72), rgba(17,17,17,.82));}
  .hero-content{position:relative; z-index:2; color:var(--white); padding:0 24px; max-width:820px;}
  .hero h1{font-size:68px; margin-bottom:24px; opacity:0; animation:fadeUp .9s ease forwards;}
  @media(max-width:767px){.hero h1{font-size:38px;}}
  .hero p.sub{font-size:19px; color:var(--muted); max-width:600px; margin:0 auto 40px; opacity:0; animation:fadeUp .9s ease .2s forwards;}
  .hero-buttons{display:flex; gap:18px; justify-content:center; flex-wrap:wrap; margin-bottom:56px; opacity:0; animation:fadeUp .9s ease .4s forwards;}
  .stat-row{display:flex; gap:16px; justify-content:center; flex-wrap:wrap; opacity:0; animation:fadeUp .9s ease .6s forwards;}
  .glass-card{background:rgba(255,255,255,.08); backdrop-filter:blur(12px); border:1px solid rgba(255,255,255,.18); border-radius:12px; padding:16px 22px; font-size:14px; font-weight:600; display:flex; align-items:center; gap:8px;}
  @keyframes fadeUp{from{opacity:0; transform:translateY(24px);} to{opacity:1; transform:translateY(0);}}

  /* ===== Reveal on scroll ===== */
  .reveal{opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease;}
  .reveal.in{opacity:1; transform:translateY(0);}

  /* ===== Trust cards ===== */
  .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:32px;}
  @media(max-width:900px){.grid-3{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:600px){.grid-3{grid-template-columns:1fr;}}
  .icon-card{background:var(--white); border-radius:10px; padding:32px 28px; box-shadow:0 2px 12px rgba(0,0,0,.05);}
  .icon-card .ic{width:48px; height:48px; border-radius:10px; background:rgba(0,110,92,.1); color:var(--primary); display:flex; align-items:center; justify-content:center; font-size:22px; margin-bottom:18px;}
  .icon-card h4{font-size:19px; margin-bottom:8px; color:var(--secondary);}
  .icon-card p{font-size:15px; color:#6B7280;}

  /* ===== Problems / Flip ===== */
  .flip-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:28px;}
  @media(max-width:900px){.flip-grid{grid-template-columns:1fr;}}
  .flip-card{perspective:1200px; height:190px;}
  .flip-inner{position:relative; width:100%; height:100%; transition:transform .6s cubic-bezier(.4,.2,.2,1); transform-style:preserve-3d; cursor:pointer;}
  .flip-card:hover .flip-inner, .flip-card.flipped .flip-inner{transform:rotateY(180deg);}
  .flip-face{position:absolute; inset:0; backface-visibility:hidden; border-radius:10px; padding:26px; display:flex; flex-direction:column; justify-content:center;}
  .flip-front{background:#1a1a1a; border:1px solid rgba(255,255,255,.08);}
  .flip-front .tag{color:#c98a8a; font-size:12px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; margin-bottom:8px;}
  .flip-front h4{font-size:19px; color:var(--white);}
  .flip-back{background:var(--primary); color:var(--white); transform:rotateY(180deg);}
  .flip-back .tag{font-size:12px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; opacity:.85; margin-bottom:8px;}
  .flip-back p{font-size:15px;}

  /* ===== Process ===== */
  .timeline{display:grid; grid-template-columns:repeat(4,1fr); gap:28px; position:relative;}
  @media(max-width:900px){.timeline{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:600px){.timeline{grid-template-columns:1fr;}}
  .step{background:var(--white); border-radius:10px; padding:26px 22px; box-shadow:0 2px 12px rgba(0,0,0,.05);}
  .step .num{font-family:'Poppins',sans-serif; font-weight:700; font-size:26px; color:rgba(0,110,92,.3); margin-bottom:10px;}
  .step h4{font-size:16px; color:var(--secondary);}

  /* ===== BOQ comparison ===== */
  .compare{display:grid; grid-template-columns:1fr 1fr; gap:0; border-radius:12px; overflow:hidden; max-width:900px; margin:0 auto;}
  @media(max-width:700px){.compare{grid-template-columns:1fr;}}
  .compare-col{padding:36px 32px;}
  .compare-col.neg{background:#1a1a1a;}
  .compare-col.pos{background:var(--primary);}
  .compare-col h3{color:var(--white); font-size:19px; margin-bottom:20px;}
  .compare-col ul{list-style:none;}
  .compare-col li{color:rgba(255,255,255,.85); font-size:15px; padding:10px 0; border-bottom:1px solid rgba(255,255,255,.1); display:flex; gap:10px;}

  /* ===== VR ===== */
  .vr-section{display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center;}
  @media(max-width:900px){.vr-section{grid-template-columns:1fr;}}
  .vr-video{border-radius:12px; overflow:hidden; aspect-ratio:4/5; position:relative;
    background-image:url('/assets/images/vr-video-bg.png');
    background-size:cover; background-position:center top; box-shadow:0 20px 48px rgba(0,0,0,.18);
  }
  .vr-benefits{list-style:none; margin:24px 0 32px; display:grid; grid-template-columns:1fr 1fr; gap:14px;}
  .vr-benefits li{font-size:15px; display:flex; gap:10px; align-items:flex-start;}
  .vr-benefits li::before{content:'✓'; color:var(--primary); font-weight:700;}

  /* ===== Services ===== */
  .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:24px;}
  @media(max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:600px){.grid-4{grid-template-columns:1fr;}}
  .service-card{background:#1a1a1a; border:1px solid rgba(255,255,255,.06); border-radius:10px; padding:28px 22px; transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease; display:block; text-decoration:none;}
  .service-card:hover{transform:translateY(-6px); box-shadow:0 12px 32px rgba(0,110,92,.25); border-color:var(--primary);}
  .service-card .ic{color:var(--accent); font-size:24px; margin-bottom:14px;}
  .service-card h4{color:var(--white); font-size:16px; margin-bottom:8px;}
  .service-card p{color:var(--muted); font-size:13px;}

  /* ===== Testimonials ===== */
  .testi-row{display:grid; grid-template-columns:repeat(3,1fr); gap:28px;}
  @media(max-width:900px){.testi-row{grid-template-columns:1fr;}}
  .testi-card{background:#1a1a1a; border-radius:10px; padding:30px; border:1px solid rgba(255,255,255,.06);}
  .stars{color:var(--accent); font-size:14px; margin-bottom:14px;}
  .testi-card p.quote{color:var(--muted); font-size:15px; margin-bottom:18px; font-style:italic;}
  .testi-who{display:flex; align-items:center; gap:12px;}
  .avatar{width:42px; height:42px; border-radius:50%; background:var(--primary); color:var(--white); display:flex; align-items:center; justify-content:center; font-weight:600; font-family:'Poppins',sans-serif;}
  .testi-who span{color:var(--white); font-size:14px; font-weight:600; display:block;}
  .testi-who small{color:var(--muted); font-size:12px;}
  .placeholder-flag{text-align:center; font-size:12px; color:var(--accent); margin-top:28px; opacity:.8;}

  /* ===== FAQ ===== */
  .faq{max-width:760px; margin:0 auto;}
  details{background:var(--white); border-radius:8px; padding:20px 24px; margin-bottom:14px; box-shadow:0 2px 10px rgba(0,0,0,.04);}
  summary{cursor:pointer; font-weight:600; font-size:16px; list-style:none; display:flex; justify-content:space-between; align-items:center;}
  summary::-webkit-details-marker{display:none;}
  summary::after{content:'+'; font-size:20px; color:var(--primary); transition:transform .3s ease;}
  details[open] summary::after{transform:rotate(45deg);}
  details p{margin-top:14px; color:#6B7280; font-size:15px;}

  /* ===== Final CTA ===== */
  .cta{background:linear-gradient(135deg, var(--primary), var(--primary-deep)); text-align:center; color:var(--white); padding:100px 0;}
  .cta h2{font-size:38px; margin-bottom:14px;}
  .cta p{color:rgba(255,255,255,.85); margin-bottom:36px; font-size:17px;}
  .cta .hero-buttons{opacity:1; animation:none;}

  /* ===== Footer ===== */
  footer{background:var(--white); color:#6B7280; padding:80px 0 24px;}
  .foot-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; margin-bottom:56px;}
  @media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr;}}
  @media(max-width:600px){.foot-grid{grid-template-columns:1fr;}}
  footer img.foot-logo{height:130px; width:auto; margin-bottom:0;}
  footer h5{color:var(--secondary); font-size:14px; letter-spacing:.06em; text-transform:uppercase; margin-bottom:18px;}
  footer ul{list-style:none;}
  footer li{margin-bottom:10px; font-size:14px;}
  footer a{color:#6B7280; text-decoration:none;}
  footer a:hover{color:var(--primary);}
  .foot-bottom{border-top:1px solid rgba(0,0,0,.08); padding-top:24px; display:flex; justify-content:space-between; font-size:13px; flex-wrap:wrap; gap:12px;}

  .whatsapp-fab{position:fixed; bottom:24px; right:24px; width:56px; height:56px; border-radius:50%; background:#25D366; display:flex; align-items:center; justify-content:center; z-index:1000; box-shadow:0 4px 16px rgba(0,0,0,.3); color:#fff; font-size:26px; text-decoration:none;}
  .call-fab{position:fixed; bottom:24px; right:92px; width:56px; height:56px; border-radius:50%; background:var(--primary); display:none; align-items:center; justify-content:center; z-index:1000; box-shadow:0 4px 16px rgba(0,0,0,.3); color:#fff; font-size:22px; text-decoration:none;}
  @media(max-width:767px){.call-fab{display:flex;}}

  /* ===== Footer social + map ===== */
  .social-row{display:flex; gap:10px; margin-top:18px;}
  .social-ic{width:36px; height:36px; border-radius:50%; background:rgba(0,0,0,.04); border:1px solid rgba(0,0,0,.12); display:flex; align-items:center; justify-content:center; font-size:11px; font-weight:700; letter-spacing:.02em; color:#6B7280; text-decoration:none; transition:background .25s ease, color .25s ease, border-color .25s ease;}
  .social-ic:hover{background:var(--primary); color:var(--white); border-color:var(--primary);}
  .map-embed{border-radius:8px; overflow:hidden; margin-bottom:40px; border:1px solid rgba(0,0,0,.1);}
  .map-embed iframe{width:100%; height:220px; border:0; display:block;}

/* ===== Sub-page hero banner ===== */
.page-hero{background:linear-gradient(135deg, var(--secondary), #1a1a1a); color:var(--white); padding:150px 0 72px; text-align:center;}
@media(max-width:767px){.page-hero{padding:120px 0 56px;}}
.page-hero h1{font-size:46px; margin-bottom:14px;}
@media(max-width:767px){.page-hero h1{font-size:30px;}}
.page-hero p{color:var(--muted); font-size:17px; max-width:640px; margin:0 auto;}
.breadcrumb{font-size:13px; color:var(--accent); text-transform:uppercase; letter-spacing:.1em; font-weight:600; margin-bottom:14px;}
.breadcrumb a{color:var(--accent); text-decoration:none;}
.breadcrumb a:hover{text-decoration:underline;}

/* ===== Services page groups ===== */
.service-group{margin-bottom:64px; scroll-margin-top:100px;}
.service-group:last-child{margin-bottom:0;}
.service-group-head{margin-bottom:28px;}
.service-group-head h3{font-size:24px; color:var(--white);}
.service-group-head p{color:var(--muted); font-size:14px; margin-top:6px;}

/* ===== About page ===== */
.about-story{max-width:820px; margin:0 auto; font-size:17px; color:#4B5563;}
.about-story p{margin-bottom:20px;}
.value-note{background:rgba(212,175,55,.1); border:1px solid rgba(212,175,55,.3); border-radius:8px; padding:16px 20px; font-size:14px; color:#6B5B1E; margin-top:24px;}
.bg-dark .value-note{background:rgba(212,175,55,.08); border-color:rgba(212,175,55,.25); color:var(--accent);}

/* ===== Work with us ===== */
.path-grid{display:grid; grid-template-columns:1fr 1fr; gap:32px;}
@media(max-width:767px){.path-grid{grid-template-columns:1fr;}}
.path-card{background:var(--white); border-radius:10px; padding:40px 32px; box-shadow:0 2px 12px rgba(0,0,0,.05);}
.path-card h3{font-size:22px; margin-bottom:12px; color:var(--secondary);}
.path-card p{color:#6B7280; font-size:15px; margin-bottom:24px;}

/* ===== Contact page ===== */
.contact-grid{display:grid; grid-template-columns:1.1fr 1fr; gap:56px; align-items:start;}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;}}
.contact-info-list{list-style:none; margin-bottom:28px;}
.contact-info-list li{display:flex; gap:14px; margin-bottom:22px; font-size:15px;}
.contact-info-list .ic{width:40px; height:40px; border-radius:10px; background:rgba(0,110,92,.1); color:var(--primary); display:flex; align-items:center; justify-content:center; font-size:18px; flex-shrink:0;}
.contact-info-list a{color:var(--text); text-decoration:none;}
.contact-info-list a:hover{color:var(--primary);}
.contact-form{background:var(--white); border-radius:12px; padding:36px; box-shadow:0 4px 24px rgba(0,0,0,.06);}
.form-row{margin-bottom:18px;}
.form-row label{display:block; font-size:13px; font-weight:600; margin-bottom:6px; color:var(--secondary);}
.form-row input, .form-row select, .form-row textarea{width:100%; padding:12px 14px; border:1px solid rgba(0,0,0,.15); border-radius:6px; font-family:inherit; font-size:15px; color:var(--text); background:var(--white);}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{outline:none; border-color:var(--primary);}
.form-row textarea{resize:vertical; min-height:110px;}
.form-note{font-size:12px; color:#9CA3AF; margin-top:12px;}
.form-success{display:none; background:rgba(0,110,92,.1); border:1px solid rgba(0,110,92,.3); color:var(--primary-deep); padding:14px 18px; border-radius:8px; font-size:14px; margin-bottom:18px;}
.form-success.show{display:block;}