:root{--green:#0f5f4b;--green2:#174f43;--ink:#17211d;--muted:#66736d;--line:#dde5e1;--soft:#f5f8f6;--white:#fff;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.55}a{color:inherit}.wrap{max-width:var(--max);margin:auto;padding:0 22px}.top{background:#0d241d;color:#fff}.top .wrap{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:22px;font-weight:800;letter-spacing:.2px;text-decoration:none}.brand span{color:#9cd2c2}.nav{display:flex;gap:22px;font-size:14px}.nav a{text-decoration:none;opacity:.9}.crumbs{padding:20px 0;font-size:13px;color:var(--muted)}.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:46px;align-items:center;padding:16px 0 46px}.visual{background:var(--soft);border:1px solid var(--line);border-radius:24px;aspect-ratio:1;display:grid;place-items:center;overflow:hidden}.visual img{width:100%;height:100%;object-fit:contain;padding:24px}.kicker{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--green);font-weight:800}.hero h1{font-size:clamp(36px,5vw,62px);line-height:1.02;margin:8px 0 16px;letter-spacing:-.04em}.lead{font-size:19px;color:#44524c;max-width:720px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.chip{background:#edf5f1;color:#174f43;border:1px solid #d9e8e1;border-radius:999px;padding:7px 11px;font-size:13px;font-weight:700}.actions{display:flex;flex-wrap:wrap;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:12px;text-decoration:none;font-weight:800;border:1px solid var(--green)}.btn.primary{background:var(--green);color:#fff}.btn.secondary{color:var(--green);background:#fff}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:5px 0 46px}.stat{border:1px solid var(--line);border-radius:16px;padding:16px}.stat small{display:block;color:var(--muted)}.stat strong{display:block;font-size:21px;margin-top:3px}.section{padding:52px 0;border-top:1px solid #edf0ee}.section h2{font-size:34px;letter-spacing:-.02em;margin:0 0 12px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:22px}.section-head p{max-width:720px;color:var(--muted);margin:0}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card{border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff}.card h3{margin:0 0 7px}.card p{margin:0;color:var(--muted)}.info-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.info{border:1px solid var(--line);border-radius:16px;padding:16px}.info b{display:block;margin-bottom:4px}.info span{color:var(--muted)}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;max-height:650px}.spec{border-collapse:collapse;width:100%;min-width:780px;font-size:14px}.spec th,.spec td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}.spec th{position:sticky;top:0;background:#eef4f1;z-index:2}.spec th:first-child,.spec td:first-child{position:sticky;left:0;background:#fff;z-index:1}.spec th:first-child{background:#eef4f1;z-index:3}.note{font-size:13px;color:var(--muted);margin-top:10px}.faq details{border-top:1px solid var(--line);padding:15px 0}.faq summary{font-weight:800;cursor:pointer}.faq p{color:var(--muted);margin:8px 0 0}.cta{background:#123e33;color:#fff;border-radius:24px;padding:34px;display:flex;align-items:center;justify-content:space-between;gap:24px}.cta h2{margin:0 0 7px}.cta p{margin:0;color:#d8e6e0}.footer{padding:36px 0 90px;color:var(--muted);font-size:13px}.products{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding-bottom:60px}.product-card{text-decoration:none;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;transition:.15s}.product-card:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(15,95,75,.08)}.product-card img{width:100%;aspect-ratio:1;object-fit:contain;background:var(--soft);padding:14px}.product-card .body{padding:15px}.product-card h2{font-size:17px;line-height:1.25;margin:5px 0}.product-card p{font-size:13px;color:var(--muted);margin:0}.mobilebar{display:none}
@media(max-width:980px){.hero{grid-template-columns:1fr;gap:26px}.visual{max-width:640px;width:100%;margin:auto}.stats{grid-template-columns:repeat(2,1fr)}.grid3{grid-template-columns:1fr 1fr}.products{grid-template-columns:repeat(3,1fr)}}
@media(max-width:720px){.wrap{padding:0 16px}.nav{display:none}.hero{padding-bottom:32px}.hero h1{font-size:38px}.lead{font-size:17px}.stats{grid-template-columns:1fr 1fr}.grid3,.info-list{grid-template-columns:1fr}.section{padding:38px 0}.section h2{font-size:28px}.section-head{display:block}.section-head .btn{margin-top:12px;width:100%}.products{grid-template-columns:repeat(2,1fr);gap:10px}.cta{display:block;padding:24px}.cta .actions{margin-top:16px}.mobilebar{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:fixed;z-index:30;bottom:0;left:0;right:0;padding:10px 12px;background:rgba(255,255,255,.96);border-top:1px solid var(--line);backdrop-filter:blur(9px)}.footer{padding-bottom:110px}}
@media(max-width:430px){.products{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}.stat strong{font-size:17px}.visual img{padding:12px}.actions .btn{width:100%}}

/* Vitlo Fan main-site shell and product-detail design */
.productDetailPage{--green:#0d5833;--deep:#102a1c;--accent:#68b989;--paper:#f4f5f0;--ink:#101a1b;--muted:#66736d;--line:#d7dcd5;background:var(--paper);padding-top:114px;color:var(--ink);font-family:Arial,Helvetica,sans-serif}
.productDetailPage a{text-decoration:none}
.contactbar{position:fixed;inset:0 0 auto;z-index:101;height:32px;background:#172219;color:#d7dfd2;padding:0 4vw;display:flex;align-items:center;justify-content:space-between;font-size:10px;letter-spacing:.35px}
.contactbar div{display:flex;gap:24px}.contactbar a{color:#d7dfd2}
.productDetailPage .top{position:fixed;top:32px;left:0;right:0;z-index:100;height:82px;background:#fff;color:var(--ink);border-bottom:1px solid #e3e7df;box-shadow:0 5px 18px rgba(16,42,28,.04)}
.productDetailPage .top .shell-wrap{height:100%;padding:0 4vw;display:flex;align-items:center;justify-content:space-between;position:relative}
.shell-vensis,.shell-vitlo{height:58px;display:flex;align-items:center}.shell-vensis img{width:190px;height:auto;display:block}.shell-vitlo{width:142px;justify-content:center}.shell-vitlo img{width:122px;height:50px;object-fit:contain}
.shell-nav{position:absolute;left:50%;transform:translateX(-50%);display:flex;gap:31px;white-space:nowrap;font-size:13px;font-weight:700}.shell-nav a{color:var(--ink);padding:31px 0 28px;border-bottom:3px solid transparent}.shell-nav a:hover,.shell-nav a.active{color:var(--green);border-bottom-color:var(--green)}
.productDetailPage .wrap{max-width:1240px;padding:0 30px}
.productDetailPage .crumbs{padding:30px 0 22px;color:#738079;font-size:12px}.productDetailPage .crumbs a{font-weight:800;color:var(--green)}
.productDetailPage .hero{grid-template-columns:minmax(400px,.92fr) minmax(0,1.08fr);gap:7vw;padding:14px 0 62px;min-height:610px}
.productDetailPage .visual{border:1px solid #e0e5df;border-radius:0;background:#fff;position:relative;box-shadow:0 24px 60px rgba(16,42,28,.06)}
.productDetailPage .visual:before{content:"VITLO ENDÜSTRİYEL HAVA SİSTEMLERİ";position:absolute;left:22px;top:20px;z-index:2;font-size:8px;letter-spacing:1.5px;font-weight:900;color:#829089}
.productDetailPage .visual img{padding:42px;mix-blend-mode:multiply}
.productDetailPage .kicker{font-size:9px;letter-spacing:1.8px;color:var(--green);position:relative;padding-left:36px}.productDetailPage .kicker:before{content:"";position:absolute;width:26px;height:2px;left:0;top:6px;background:var(--accent)}
.productDetailPage .hero h1{font-size:clamp(52px,5.3vw,78px);line-height:.93;letter-spacing:-4.6px;margin:24px 0 23px;max-width:720px}
.productDetailPage .lead{font-size:18px;line-height:1.7;color:#51605a;max-width:650px}
.productDetailPage .chips{gap:7px;margin:25px 0}.productDetailPage .chip{border:1px solid #ccdcd2;border-radius:0;background:#e7efe9;color:#334a3d;padding:8px 10px;font-size:10px;letter-spacing:.35px}
.productDetailPage .actions{gap:10px}.productDetailPage .btn{min-height:50px;border-radius:0;padding:0 20px;font-size:11px;letter-spacing:.15px}.productDetailPage .btn.primary{background:var(--green);border-color:var(--green)}.productDetailPage .btn.secondary{background:transparent;color:var(--green);border-color:var(--green)}.productDetailPage .btn:hover{transform:translateY(-2px)}
.productDetailPage .stats{gap:0;margin:0 0 72px;background:var(--deep);color:#fff;border-left:1px solid #ffffff1f}.productDetailPage .stat{border:0;border-right:1px solid #ffffff1f;border-radius:0;padding:24px 25px;min-height:105px}.productDetailPage .stat small{font-size:8px;letter-spacing:1.25px;text-transform:uppercase;color:#9fb4a7}.productDetailPage .stat strong{font-size:21px;margin-top:10px}
.productDetailPage .section{padding:84px 0;border-top:1px solid var(--line);background:#fff}.productDetailPage .section:nth-of-type(even){background:var(--paper)}
.productDetailPage .section h2{font-size:clamp(38px,3.7vw,54px);line-height:1.02;letter-spacing:-2.6px;margin:14px 0 16px}.productDetailPage .section-head{align-items:flex-end;margin-bottom:38px}.productDetailPage .section-head p{font-size:14px;line-height:1.75}
.productDetailPage .grid3{gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}.productDetailPage .card{border-radius:0;border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:155px;padding:24px;background:#fff;display:flex;align-items:flex-start}.productDetailPage .card p{font-size:13px;line-height:1.7}
.productDetailPage .info-list{gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}.productDetailPage .info{border-radius:0;border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px;min-height:120px;background:#fff}.productDetailPage .info b{font-size:18px}.productDetailPage .info span{font-size:12px;line-height:1.6}
.productDetailPage .table-wrap{border-radius:0;border-color:var(--line);max-height:620px;background:#fff}.productDetailPage .spec{font-size:13px}.productDetailPage .spec th{background:#dce9e1;color:#274235;font-size:9px;letter-spacing:.9px;text-transform:uppercase}.productDetailPage .spec th,.productDetailPage .spec td{padding:14px 16px}.productDetailPage .spec tbody tr:hover td{background:#f0f5f2}.productDetailPage .spec tbody tr:hover td:first-child{background:#f0f5f2}
.productDetailPage .faq details{background:#fff;padding:22px 0}.productDetailPage .faq summary{font-size:17px}.productDetailPage .faq p{font-size:14px;line-height:1.75;max-width:900px}
.productDetailPage .cta{border-radius:0;background:var(--green);padding:48px 52px}.productDetailPage .cta h2{font-size:clamp(34px,3.4vw,50px);color:#fff}.productDetailPage .cta p{color:#c9ddd1}.productDetailPage .cta .btn.primary{background:#fff;color:var(--green);border-color:#fff}.productDetailPage .cta .btn.secondary{color:#fff;border-color:#ffffff66}
.productDetailPage .footer{padding:0;background:#0b1516;color:#fff}.shell-footer{max-width:1240px;margin:auto;padding:45px 30px 28px;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:55px;position:relative;min-height:235px}.footer-identity img{width:190px;height:auto}.footer-identity p{font-size:12px;color:#84918f;margin:25px 0 0}.footer-links{display:flex;flex-direction:column;gap:10px;font-size:12px;color:#a4afad}.footer-links b{color:#fff;margin-bottom:8px}.footer-bottom{position:absolute;left:30px;right:30px;bottom:20px;border-top:1px solid #ffffff18;padding-top:15px;display:flex;justify-content:space-between;font-size:10px;color:#63706e}
.productDetailPage .mobilebar{z-index:110}
@media(max-width:1050px){.shell-nav{display:none}.productDetailPage .hero{gap:4vw}.productDetailPage .hero h1{font-size:58px}.productDetailPage .visual img{padding:28px}}
@media(max-width:820px){.productDetailPage .hero{grid-template-columns:1fr;gap:38px}.productDetailPage .visual{max-width:620px;width:100%;margin:auto}.productDetailPage .stats{grid-template-columns:repeat(2,1fr)}.productDetailPage .grid3{grid-template-columns:1fr 1fr}.shell-footer{grid-template-columns:1fr 1fr}.footer-identity{grid-column:1/-1}}
@media(max-width:650px){.productDetailPage{padding-top:104px}.contactbar{height:32px;padding:0 16px;justify-content:center}.contactbar>span{display:none}.contactbar div{gap:14px}.contactbar a:last-child{display:none}.productDetailPage .top{top:32px;height:72px}.productDetailPage .top .shell-wrap{padding:0 18px}.shell-vensis img{width:145px}.shell-vitlo{width:94px;height:44px}.shell-vitlo img{width:84px;height:38px}.productDetailPage .wrap{padding:0 20px}.productDetailPage .crumbs{padding-top:22px}.productDetailPage .hero{padding:8px 0 42px;min-height:0}.productDetailPage .hero h1{font-size:47px;letter-spacing:-3px}.productDetailPage .lead{font-size:16px}.productDetailPage .visual img{padding:18px}.productDetailPage .actions .btn{width:100%}.productDetailPage .stats{margin-bottom:48px}.productDetailPage .stat{min-height:95px;padding:18px 16px}.productDetailPage .stat strong{font-size:17px}.productDetailPage .section{padding:60px 0}.productDetailPage .section-head{display:block}.productDetailPage .section-head .btn{margin-top:20px}.productDetailPage .grid3,.productDetailPage .info-list{grid-template-columns:1fr}.productDetailPage .cta{display:block;padding:30px 25px}.productDetailPage .cta .actions{margin-top:22px}.shell-footer{grid-template-columns:1fr;padding:38px 24px 85px;gap:35px}.footer-identity{grid-column:auto}.footer-bottom{left:24px;right:24px;bottom:22px;flex-direction:column;gap:5px}}

.languageSwitcher{display:inline-flex;align-items:center;gap:5px;font-size:9px;font-weight:900;letter-spacing:.5px}
.languageSwitcher a{opacity:.65}.languageSwitcher a.active{opacity:1;text-decoration:underline;text-underline-offset:3px}
.shell-footer.compact{display:grid!important;grid-template-columns:1fr!important;gap:10px!important;padding-top:18px!important;padding-bottom:12px!important}
.shell-footer.compact .footer-identity{display:flex!important;align-items:center!important;justify-content:space-between!important;gap:20px!important}
.shell-footer.compact .footer-identity img{max-width:145px!important}.shell-footer.compact .footer-identity p{margin:0!important}
@media(max-width:700px){.shell-footer.compact .footer-identity{flex-direction:column!important;align-items:flex-start!important}}


/* PRODUCT HEADER + MOBILE MENU FIX 2026-08-18 */
.productDetailPage .top .shell-wrap{
  display:grid !important;
  grid-template-columns:210px minmax(0,1fr) 210px !important;
  align-items:center !important;
  column-gap:18px !important;
  justify-content:initial !important;
}
.shell-vensis{
  grid-column:1 !important;
  justify-self:start !important;
  width:190px !important;
  height:58px !important;
  margin:0 !important;
  display:flex !important;
  align-items:center !important;
}
.shell-vensis img{
  width:190px !important;
  height:auto !important;
  max-height:48px !important;
  object-fit:contain !important;
  object-position:left center !important;
}
.shell-nav{
  grid-column:2 !important;
  justify-self:center !important;
  position:static !important;
  left:auto !important;
  transform:none !important;
  margin:0 !important;
}
.shell-vitlo{
  grid-column:3 !important;
  justify-self:end !important;
  width:142px !important;
  height:58px !important;
  margin:0 !important;
  display:flex !important;
  align-items:center !important;
  justify-content:center !important;
}
.shell-vitlo img{
  width:112px !important;
  height:52px !important;
  object-fit:contain !important;
}

.productMenuToggle{
  display:none;
  width:44px;
  height:44px;
  padding:0;
  border:1px solid #dfe5e0;
  background:#fff;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  cursor:pointer;
  position:relative;
  z-index:114;
}
.productMenuToggle span{width:20px;height:2px;background:#101a1b;display:block;transition:transform .2s,opacity .2s}
.productMenuToggle.isOpen span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.productMenuToggle.isOpen span:nth-child(2){opacity:0}
.productMenuToggle.isOpen span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.productMobileMenu{
  display:none;
  position:fixed;
  top:114px;
  left:0;
  right:0;
  z-index:99;
  background:#fff;
  border-top:1px solid #e3e7df;
  border-bottom:1px solid #d7dcd5;
  box-shadow:0 18px 35px #00000018;
  padding:10px 24px 22px;
  flex-direction:column;
  transform:translateY(-125%);
  opacity:0;
  pointer-events:none;
  transition:transform .22s ease,opacity .22s ease;
}
.productMobileMenu.isOpen{transform:translateY(0);opacity:1;pointer-events:auto}
.productMobileMenu>a{
  color:#101a1b;
  border-bottom:1px solid #e7ebe7;
  padding:15px 2px;
  font-size:14px;
  font-weight:800;
}
.productMobileMenu .mobileLanguageRow{
  display:flex;
  align-items:center;
  gap:8px;
  border-top:1px solid #dfe5e0;
  margin-top:5px;
  padding-top:15px;
}
.productMobileMenu .mobileLanguageRow a{
  color:#101a1b;
  font-size:12px;
  font-weight:900;
}
.productMobileMenu .mobileLanguageRow a.active{
  color:#0d5833;
  text-decoration:underline;
  text-underline-offset:3px;
}
.productMobileMenu .mobileLanguageRow span{color:#9ba69f}
body.productMenuOpen{overflow:hidden}

@media(max-width:950px){
  .productDetailPage .top .shell-wrap{
    grid-template-columns:minmax(0,1fr) 96px 44px !important;
    column-gap:12px !important;
  }
  .shell-nav{display:none !important}
  .shell-vensis{width:160px !important;height:52px !important}
  .shell-vensis img{width:160px !important;max-height:42px !important}
  .shell-vitlo{grid-column:2 !important;width:96px !important;height:52px !important}
  .shell-vitlo img{width:80px !important;height:48px !important}
  .productMenuToggle{
    display:flex !important;
    grid-column:3 !important;
    justify-self:end !important;
    margin:0 !important;
  }
  .productMobileMenu{display:flex}
}

@media(max-width:650px){
  .contactbar .languageSwitcher,
  .contactbar .languageSwitcher a,
  .contactbar .languageSwitcher span{
    display:inline-flex !important;
    visibility:visible !important;
  }
  .contactbar .languageSwitcher{gap:5px !important;white-space:nowrap !important}
  .contactbar .languageSwitcher a{font-size:10px !important}
  .contactbar a:last-child{display:inline-flex !important}

  .productDetailPage .top .shell-wrap{
    grid-template-columns:minmax(0,1fr) 82px 44px !important;
    column-gap:9px !important;
    padding-left:16px !important;
    padding-right:16px !important;
  }
  .shell-vensis{width:138px !important;height:46px !important}
  .shell-vensis img{width:138px !important;max-height:35px !important}
  .shell-vitlo{width:82px !important;height:46px !important}
  .shell-vitlo img{width:68px !important;height:43px !important}
  .productMobileMenu{top:104px}
}

@media(max-width:370px){
  .productDetailPage .top .shell-wrap{
    grid-template-columns:minmax(0,1fr) 68px 40px !important;
    column-gap:7px !important;
    padding-left:12px !important;
    padding-right:12px !important;
  }
  .shell-vensis{width:116px !important}
  .shell-vensis img{width:116px !important;max-height:31px !important}
  .shell-vitlo{width:68px !important}
  .shell-vitlo img{width:58px !important;height:39px !important}
  .productMenuToggle{width:40px !important;height:40px !important}
}


/* V4.1 PRODUCT MOBILE CENTER HEADER ONLY */
@media (max-width:950px){
  .productDetailPage .top .shell-wrap{
    position:relative !important;
    display:grid !important;
    grid-template-columns:1fr auto 1fr !important;
    align-items:center !important;
    column-gap:8px !important;
  }

  .shell-vensis{
    grid-column:1 !important;
    grid-row:1 !important;
    justify-self:start !important;
    align-self:center !important;
    margin:0 !important;
  }

  .shell-vitlo{
    grid-column:2 !important;
    grid-row:1 !important;
    justify-self:center !important;
    align-self:center !important;
    margin:0 !important;
  }

  .productMenuToggle{
    grid-column:3 !important;
    grid-row:1 !important;
    justify-self:end !important;
    align-self:center !important;
    margin:0 !important;
  }
}

@media (max-width:650px){
  .productDetailPage .top .shell-wrap{
    grid-template-columns:1fr auto 1fr !important;
    padding-left:16px !important;
    padding-right:16px !important;
    column-gap:6px !important;
  }

  .shell-vensis{
    width:auto !important;
    height:46px !important;
  }
  .shell-vensis img{
    width:auto !important;
    height:auto !important;
    max-width:138px !important;
    max-height:35px !important;
    object-fit:contain !important;
  }

  .shell-vitlo{
    width:auto !important;
    height:46px !important;
  }
  .shell-vitlo img{
    width:auto !important;
    height:auto !important;
    max-width:72px !important;
    max-height:39px !important;
    object-fit:contain !important;
  }

  .productMenuToggle{
    width:44px !important;
    height:44px !important;
  }
}


/* V4.2 PRODUCT MOBILE HIDE VITLO */
@media (max-width:950px){
  .productDetailPage .top .shell-wrap{
    grid-template-columns:1fr auto !important;
    align-items:center !important;
  }

  .shell-vensis{
    grid-column:1 !important;
    grid-row:1 !important;
    justify-self:start !important;
    align-self:center !important;
  }

  .shell-vitlo{
    display:none !important;
  }

  .productMenuToggle{
    grid-column:2 !important;
    grid-row:1 !important;
    justify-self:end !important;
    align-self:center !important;
    margin:0 !important;
  }
}

@media (max-width:650px){
  .productDetailPage .top .shell-wrap{
    grid-template-columns:1fr auto !important;
  }
}


/* EXPROOFFAN PRODUCT HEADER */
.productDetailPage .top .shell-wrap{
  grid-template-columns:1fr auto !important;
}
.shell-vitlo{
  display:none !important;
}
.shell-vensis{
  grid-column:1 !important;
  justify-self:start !important;
}
.shell-nav{
  grid-column:2 !important;
  justify-self:end !important;
}
@media(max-width:950px){
  .productDetailPage .top .shell-wrap{
    grid-template-columns:1fr auto !important;
  }
  .shell-vensis{grid-column:1 !important}
  .productMenuToggle{
    grid-column:2 !important;
    justify-self:end !important;
  }
}