:root{
    --grey:#eee7d9; --ink:#1b241d; --white:#ffffff;
    --oak:#27352a; --oak-deep:#245939; --oak-soft:#dbe2d6; --oak-bright:#5c9e75;
    --sub:#5a6157; --line:#b8a97f;
    --r-sm:12px; --r-md:18px; --r-lg:28px;
    --shadow-card:0 10px 26px rgba(27,36,29,.14);
    --shadow-card-hover:0 18px 34px rgba(27,36,29,.20);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{margin:0;background:var(--grey);color:var(--ink);font-family:'Newsreader',serif;font-size:19px;line-height:1.58;}
  h1,h2,h3{font-weight:600;line-height:1.14;margin:0 0 .4em;letter-spacing:-.01em;}
  p{margin:0 0 1em;max-width:64ch;}
  a{color:var(--oak-deep);}
  .code{font-family:'Newsreader',serif;font-weight:600;}
  .wrap{max-width:1100px;margin:0 auto;padding:0 24px;}

  header.site{padding:20px 0;position:sticky;top:0;background:rgba(238,231,217,.94);backdrop-filter:blur(6px);z-index:50;box-shadow:0 6px 20px rgba(27,36,29,.06);}
  .nav{display:flex;justify-content:space-between;align-items:center;max-width:1100px;margin:0 auto;padding:0 24px;}
  .brand{font-family:'Newsreader',serif;font-weight:700;text-decoration:none;color:var(--ink);font-size:1.4rem;letter-spacing:-.01em;display:flex;align-items:center;gap:10px;}
  .brand svg{flex-shrink:0;}
  .navlinks{display:flex;gap:22px;font-family:Arial,sans-serif;font-size:.85rem;align-items:center;}
  .navlinks a{color:var(--sub);text-decoration:none;transition:color .2s ease;}
  .navlinks a:not(.cta):hover{color:var(--ink);}
  .navlinks a.cta{background:var(--ink);color:#fff;padding:9px 16px;border-radius:20px;font-weight:700;position:relative;overflow:hidden;}
  .navlinks a.cta::after{content:"";position:absolute;top:0;left:-75%;width:50%;height:100%;background:linear-gradient(120deg,transparent,rgba(255,255,255,.75),transparent);transform:skewX(-20deg);animation:cta-shine 5s ease-in-out infinite;}
  @keyframes cta-shine{0%{left:-75%;}10%{left:125%;}100%{left:125%;}}
  @media (max-width:700px){ .navlinks a:not(.cta){display:none;} }

  .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);}
  .reveal.is-visible{opacity:1;transform:translateY(0);}
  .stagger>*:nth-child(1){transition-delay:0ms;}
  .stagger>*:nth-child(2){transition-delay:80ms;}
  .stagger>*:nth-child(3){transition-delay:160ms;}
  .stagger>*:nth-child(4){transition-delay:240ms;}
  .stagger>*:nth-child(5){transition-delay:320ms;}
  .stagger>*:nth-child(6){transition-delay:400ms;}
  .stagger>*:nth-child(7){transition-delay:480ms;}
  @media (prefers-reduced-motion:reduce){ .reveal{opacity:1;transform:none;transition:none;} }

  section{padding:64px 0;}
  section h2{font-size:clamp(1.6rem,3vw,2.1rem);}
  @media (max-width:640px){ section{padding:44px 0;} body{font-size:17px;} }

  .hero{position:relative;background:radial-gradient(120% 140% at 15% 10%,#2f3d31 0%,var(--ink) 55%),linear-gradient(160deg,var(--ink),#0f140f);color:#fff;padding:76px 0 64px;overflow:hidden;min-height:520px;display:flex;align-items:center;}
  .hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
  @media (max-width:880px){ .hero .wrap{grid-template-columns:1fr;} }
  .hero .tag{font-family:Arial,sans-serif;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;background:rgba(255,255,255,.16);padding:5px 12px;border-radius:20px;display:inline-block;margin-bottom:18px;}
  .hero h1{font-size:clamp(2rem,4.6vw,3rem);max-width:15ch;}
  .hero p.lede{color:#cfccc4;max-width:46ch;font-size:1.08rem;}
  .hero .actions{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap;}
  .btn{display:inline-block;padding:12px 22px;border-radius:24px;text-decoration:none;font-family:Arial,sans-serif;font-weight:700;font-size:.92rem;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;}
  .btn:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 10px 22px rgba(27,36,29,.22);}
  .btn-oak{background:var(--oak-bright);color:var(--ink);}
  .btn-outline{border-color:#4a4a45;color:#fff;}

  .fan{position:relative;height:280px;display:flex;align-items:center;}
  .swatch{position:absolute;top:50%;width:124px;height:224px;margin-top:-112px;border-radius:var(--r-md);box-shadow:0 16px 30px rgba(0,0,0,.4);display:flex;flex-direction:column;justify-content:flex-end;padding:12px;font-family:Arial,sans-serif;font-size:.66rem;color:rgba(255,255,255,.9);transform-origin:center center;transition:transform .3s ease,box-shadow .3s ease;}
  .swatch{animation:swatch-float 4.5s ease-in-out infinite;}
  .swatch:hover{animation-play-state:paused;transform:translateY(-14px) scale(1.06) rotate(0deg) !important;box-shadow:0 24px 40px rgba(0,0,0,.5);z-index:5 !important;}
  @keyframes swatch-float{0%,100%{transform:translateY(0) rotate(var(--rot,0deg));}50%{transform:translateY(-10px) rotate(var(--rot,0deg));}}
  .grain-dark::before,.grain-light::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background-size:cover;background-position:center;}
  .grain-dark::before{background-image:url('../images/houtnerf-textuur.svg');opacity:.18;}
  .grain-light::before{background-image:url('../images/houtnerf-textuur-licht.svg');opacity:.22;}
  .s1{left:0;background:linear-gradient(160deg,#f2ead8,#dcd0b8);color:#3a332a;--rot:-13deg;transform:rotate(var(--rot));animation-delay:0s;}
  .s2{left:74px;background:linear-gradient(160deg,#7d2b32,#4a151b);--rot:-4deg;transform:rotate(var(--rot));z-index:2;animation-delay:.35s;animation-duration:4.9s;}
  .s3{left:158px;background:linear-gradient(160deg,#4a6b5c,#2c4136);--rot:5deg;transform:rotate(var(--rot));z-index:3;animation-delay:.7s;animation-duration:4.2s;}
  .s4{left:244px;background:linear-gradient(160deg,#5a5f63,#2f3336);--rot:12deg;transform:rotate(var(--rot));z-index:1;animation-delay:1.05s;animation-duration:5.3s;}
  @media (max-width:880px){ .fan{height:200px;} .swatch{width:96px;height:172px;margin-top:-86px;} .s2{left:56px;} .s3{left:112px;} .s4{left:176px;} }

  .head{max-width:640px;margin-bottom:40px;}
  .head p{color:var(--sub);}
  .kicker{font-family:Arial,sans-serif;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--oak-deep);margin-bottom:10px;}

  .layers-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center;}
  @media (max-width:880px){ .layers-grid{grid-template-columns:1fr;} }
  .layer-stack{display:flex;gap:28px;align-items:stretch;}
  @media (max-width:560px){ .layer-stack{flex-direction:column;} }
  .cross-section{width:64px;flex-shrink:0;display:flex;flex-direction:column;border-radius:var(--r-sm);overflow:hidden;box-shadow:0 16px 32px rgba(27,36,29,.28);transition:transform .35s ease,box-shadow .35s ease;transform-style:preserve-3d;}
  .layers-grid{perspective:800px;}
  .cross-section:hover{transform:rotateY(-8deg) rotateX(3deg) scale(1.04);box-shadow:0 22px 40px rgba(27,36,29,.34);}
  @media (max-width:560px){ .cross-section{width:100%;height:64px;flex-direction:row;} }
  .band{position:relative;flex:1;}
  .band.top{background:rgba(255,255,255,.55);border-bottom:2px solid rgba(27,36,29,.16);}
  .band.color{background:#9c8a5c;}
  .band.base{background:rgba(255,255,255,.3);border-top:2px solid rgba(27,36,29,.1);}
  @media (max-width:560px){ .band.top{border-bottom:none;border-right:2px solid rgba(27,36,29,.16);} .band.base{border-top:none;border-left:2px solid rgba(27,36,29,.1);} }
  .callouts{flex:1;display:flex;flex-direction:column;justify-content:space-between;gap:14px;}
  .callout{position:relative;padding-left:20px;}
  .callout::before{content:"";position:absolute;left:0;top:.6em;width:12px;height:1px;background:var(--line);}
  .callout .name{font-family:Arial,sans-serif;font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.02em;color:var(--oak-deep);}
  .callout .desc{color:var(--sub);font-size:.92rem;margin:4px 0 0;}


  .color-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:20px;}
  .chip{background:#fff;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease;}
  .chip:hover{transform:translateY(-6px) rotate(-1.5deg);box-shadow:var(--shadow-card-hover);}
  .chip .swatchbox{transition:transform .3s ease;}
  .chip:hover .swatchbox{transform:scale(1.05);}
  .chip .swatchbox{height:88px;position:relative;}
  .chip .info{padding:10px 12px;}
  .chip .info .n{font-size:.88rem;font-weight:600;}
  .chip .info .r{font-family:Arial,sans-serif;font-size:.72rem;color:var(--sub);}

  .stats{display:grid;grid-template-columns:repeat(3,1fr);background:var(--ink);color:#fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);}
  @media (max-width:760px){ .stats{grid-template-columns:1fr;} }
  .stat{padding:30px 22px;border-right:1px solid #3a3a35;}
  .stat:last-child{border-right:none;}
  .stat .num{font-size:2.1rem;color:var(--oak-bright);font-weight:600;display:inline-block;transition:transform .3s cubic-bezier(.34,1.56,.64,1);}
  .stat:hover .num{transform:scale(1.15);}
  .stat .lbl{color:#c9c6bd;font-size:.88rem;margin-top:4px;font-family:Arial,sans-serif;}

  .app-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  @media (max-width:760px){ .app-list{grid-template-columns:1fr;} }
  .app{background:#fff;padding:26px 24px;border-radius:var(--r-md);box-shadow:var(--shadow-card);border-top:3px solid transparent;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
  .app:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-top-color:var(--oak-bright);}
  .app h3{font-size:1.1rem;margin-bottom:8px;transition:color .25s ease;}
  .app:hover h3{color:var(--oak-deep);}
  .app p{color:var(--sub);font-size:.94rem;margin:0;}

  .split{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
  @media (max-width:760px){ .split{grid-template-columns:1fr;} }
  .split > div{background:#fff;padding:28px 26px;border-radius:var(--r-md);box-shadow:var(--shadow-card);border-top:3px solid transparent;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
  .split > div:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-top-color:var(--oak-bright);}
  .split h3{font-size:1.1rem;transition:color .25s ease;}
  .split > div:hover h3{color:var(--oak-deep);}
  .split p{color:var(--sub);font-size:.94rem;}

  .ref-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  @media (max-width:880px){ .ref-grid{grid-template-columns:1fr 1fr;} }
  @media (max-width:600px){ .ref-grid{grid-template-columns:1fr;} }
  .ref-card{background:#fff;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease;}
  .ref-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
  .ref-photo{aspect-ratio:4/3;background:repeating-linear-gradient(135deg,#e3d9c8,#e3d9c8 10px,#d8cdb4 10px,#d8cdb4 20px);display:flex;align-items:center;justify-content:center;color:var(--sub);font-size:.82rem;text-align:center;padding:16px;font-family:Arial,sans-serif;}
  .ref-photo-split{aspect-ratio:4/3;display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--ink);overflow:hidden;}
  .ref-photo-split img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
  .ref-card:hover .ref-photo-split img{transform:scale(1.06);}
  .ref-photo{transition:background-position .6s ease;}
  .ref-card:hover .ref-photo{background-position:8px 8px;}
  .ref-half{position:relative;}
  .ref-half .lbl{position:absolute;left:6px;bottom:6px;font-size:.68rem;font-family:Arial,sans-serif;font-weight:700;background:rgba(24,24,26,.75);color:#fff;padding:2px 8px;border-radius:12px;}
  .ref-body{padding:16px 18px;}
  .ref-body .loc{font-size:.98rem;font-weight:600;}
  .ref-body .desc{font-size:.86rem;color:var(--sub);margin:4px 0 0;}
  .ref-note{margin-top:24px;border-radius:var(--r-md);background:var(--oak-soft);padding:18px 22px;font-size:.9rem;color:var(--sub);font-family:Arial,sans-serif;}

  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{cursor:pointer;list-style:none;padding:18px 14px;margin:0 -14px;border-radius:var(--r-sm);font-weight:600;font-size:1.05rem;display:flex;justify-content:space-between;align-items:center;gap:20px;transition:background .2s ease;}
  .faq-item summary:hover{background:rgba(27,36,29,.05);}
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{content:"+";font-size:1.1rem;color:var(--ink);flex-shrink:0;font-family:Arial,sans-serif;width:28px;height:28px;border-radius:50%;background:var(--oak-soft);display:flex;align-items:center;justify-content:center;transition:background .2s ease,transform .2s ease;}
  .faq-item summary:hover::after{transform:rotate(90deg);}
  .faq-item[open] summary::after{content:"–";background:var(--oak-bright);}
  .faq-item[open] summary:hover::after{transform:rotate(0deg);}
  .faq-item .a{padding:0 4px 20px;color:var(--sub);max-width:66ch;}

  .cta-band{background:var(--oak);color:#fff;border-radius:var(--r-lg);padding:48px 56px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;box-shadow:0 20px 40px rgba(27,36,29,.18);transition:box-shadow .35s ease,transform .35s ease;}
  .cta-band:hover{box-shadow:0 26px 54px rgba(36,89,57,.4);transform:translateY(-3px);}
  @media (max-width:640px){ .cta-band{padding:36px 28px;} }
  .cta-band h2{color:#fff;font-size:clamp(1.5rem,3vw,2rem);max-width:20ch;}
  .cta-band p{color:#fbe9d8;}
  .cta-band .btn{background:var(--oak-bright);color:var(--ink);}

  footer{background:var(--ink);color:#b9b7b0;padding:32px 0;font-size:.85rem;font-family:Arial,sans-serif;}
  footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;}
  footer a{color:#e7e5df;text-decoration:none;}