*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --red:#C8102E;--red-dark:#9B0B21;--red-light:#fdf0f2;
  --black:#111;--dark:#1a1a1a;
  --white:#fff;--off:#f5f5f5;--gray:#efefef;--gray-mid:#e0e0de;--gt:#888;
  --fd:'Barlow Condensed',sans-serif;--fb:'Barlow',sans-serif;--fm:'Montserrat',sans-serif;--fp:'Playfair Display',serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--fb);background:var(--off);color:var(--black);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}

/* HEADER */
header{background:var(--white);border-bottom:1px solid var(--gray-mid);padding:0 56px;display:flex;align-items:center;justify-content:space-between;height:68px;position:sticky;top:0;z-index:100}
.logo img{height:34px;filter:none}
.logo-fallback{font-family:var(--fm);font-weight:900;font-size:20px;color:#fff;letter-spacing:.04em}
.hnav{display:flex;gap:36px}
.hnav a{color:rgba(0,0,0,.7);text-decoration:none;font-family:var(--fm);font-weight:600;font-size:12px;letter-spacing:.06em;text-transform:uppercase;transition:all .2s;padding-bottom:4px;border-bottom:2px solid transparent}
.hnav a:hover{color:var(--black);border-bottom-color:var(--red)}
.hnav a.active{color:var(--black)!important;border-bottom-color:var(--red)!important}
.hsrch{display:flex}
.hsrch input{background:var(--off);border:1px solid var(--gray-mid);border-right:none;color:var(--black);padding:10px 18px;font-family:var(--fb);font-size:13px;width:220px;outline:none}
.hsrch input::placeholder{color:var(--gt)}
.hsrch button{background:var(--red);border:none;color:#fff;padding:10px 22px;font-family:var(--fd);font-weight:700;font-size:12px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer;transition:background .2s}
.hsrch button:hover{background:var(--red-dark)}

/* BREADCRUMB */
.bc{padding:16px 56px;background:var(--white);border-bottom:1px solid var(--gray-mid);display:flex;align-items:center;gap:8px;font-family:var(--fd);font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--gt)}
.bc a{color:var(--gt);text-decoration:none;transition:color .2s}.bc a:hover{color:var(--red)}.bc span{color:var(--black)}

/* MAIN LAYOUT */
.wrap{max-width:1280px;margin:0 auto;padding:40px 56px 80px}
.product-grid{display:grid;grid-template-columns:1fr 480px;gap:40px;align-items:start;margin-bottom:48px}

/* LEFT INFO */
.info{}
.cat-pill{display:inline-block;background:var(--red);color:#fff;font-family:var(--fd);font-weight:700;font-size:10px;letter-spacing:.14em;text-transform:uppercase;padding:5px 14px;margin-bottom:18px}
.ptitle{font-family:var(--fm);font-size:52px;font-weight:900;line-height:.95;text-transform:uppercase;color:var(--black);letter-spacing:-.02em;margin-bottom:4px}
.pcode{font-family:var(--fm);font-size:28px;font-weight:800;color:var(--red);letter-spacing:-.01em;text-transform:uppercase;margin-bottom:6px}
.poem{font-family:var(--fd);font-size:14px;color:var(--gt);letter-spacing:.04em;margin-bottom:32px}

/* SPEC CARDS */
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--gray-mid);border:1px solid var(--gray-mid);margin-bottom:28px}
.spec-card{background:var(--white);padding:18px 20px;display:flex;align-items:flex-start;gap:14px}
.spec-icon{width:36px;height:36px;border:1.5px solid var(--gray-mid);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--red)}
.spec-icon svg{width:16px;height:16px}
.spec-label{font-family:var(--fd);font-size:9px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gt);margin-bottom:4px}
.spec-val{font-family:var(--fd);font-size:15px;font-weight:600;color:var(--black);line-height:1.3}

/* ISO CERTS */
.iso-row{display:flex;gap:10px;flex-wrap:wrap}
.iso-card{display:flex;align-items:center;gap:10px;border:1.5px solid var(--gray-mid);padding:10px 16px;background:var(--white)}
.iso-icon{color:var(--red)}
.iso-icon svg{width:20px;height:20px}
.iso-text{}
.iso-name{font-family:var(--fd);font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--black)}
.iso-sub{font-family:var(--fd);font-size:9px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gt)}

/* RIGHT IMAGE */
.img-panel{position:sticky;top:88px}
.img-box{background:var(--white);border:1px solid var(--gray-mid);display:flex;align-items:center;justify-content:center;aspect-ratio:4/3;position:relative;overflow:hidden}
.img-box img{max-width:80%;max-height:80%;object-fit:contain;transition:transform .5s ease;position:relative;z-index:1}
.img-box:hover img{transform:scale(1.06)}
.img-code{position:absolute;bottom:0;right:0;background:var(--red);color:#fff;font-family:var(--fd);font-weight:700;font-size:11px;letter-spacing:.06em;text-transform:uppercase;padding:8px 16px;z-index:2}
.img-noimg{display:flex;align-items:center;justify-content:center;height:100%;font-family:var(--fd);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--gt)}

/* OEM SECTION */
.oem-sec{background:var(--white);border:1px solid var(--gray-mid);margin-bottom:32px;padding:32px 36px}
.sec-eyebrow{font-family:var(--fd);font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--red);margin-bottom:4px}
.sec-title{font-family:var(--fm);font-size:22px;font-weight:800;text-transform:uppercase;letter-spacing:-.01em;color:var(--black);margin-bottom:4px}
.sec-hint{font-family:var(--fd);font-size:13px;color:var(--gt);letter-spacing:.02em;margin-bottom:24px}
.oem-grid{display:flex;flex-wrap:wrap;gap:10px}
.oem-card{border:1.5px solid var(--gray-mid);padding:6px 14px;cursor:pointer;transition:all .2s;position:relative;background:var(--white)}
.oem-card:hover{border-color:var(--black);background:var(--off)}
.oem-card.copied{border-color:var(--red);background:var(--red-light)}
.oem-tip{position:absolute;top:-28px;left:50%;transform:translateX(-50%);background:var(--black);color:#fff;font-family:var(--fd);font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;white-space:nowrap;opacity:0;transition:opacity .2s;pointer-events:none}
.oem-card.copied .oem-tip{opacity:1}
.oem-code{font-family:var(--fd);font-size:13px;font-weight:700;letter-spacing:.03em;color:var(--black)}
.oem-brand{font-family:var(--fd);font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--gt);margin-top:2px}

/* COMPAT SECTION */
.compat-sec{background:var(--white);border:1px solid var(--gray-mid)}
.compat-hdr{background:var(--black);border-left:4px solid var(--red);padding:22px 32px;display:flex;align-items:center;justify-content:space-between}
.compat-title{font-family:var(--fm);font-size:20px;font-weight:800;color:#fff;text-transform:uppercase;letter-spacing:-.01em}
.compat-cnt{font-family:var(--fd);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.35)}
.fbar{padding:16px 24px;border-bottom:1px solid var(--gray-mid);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.fl{font-family:var(--fd);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gt)}
.fb{font-family:var(--fd);font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;padding:5px 14px;border:1.5px solid var(--gray-mid);background:var(--white);cursor:pointer;transition:all .15s;color:var(--black)}
.fb:hover{border-color:var(--black)}.fb.active{background:var(--black);color:#fff;border-color:var(--black)}
.twrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:12.5px}
thead tr{background:var(--dark)}
thead th{font-family:var(--fd);font-size:9px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:11px 14px;text-align:left;white-space:nowrap;color:rgba(255,255,255,.45)}
tbody tr{border-bottom:1px solid var(--gray-mid);transition:background .1s}
tbody tr:hover{background:#fafaf8}
tbody td{padding:10px 14px;white-space:nowrap;font-family:var(--fd);font-size:13px}
.tsn{color:var(--gt);font-size:11px}
.tbrand{font-weight:700;text-transform:uppercase;font-size:13px;letter-spacing:.02em}
.tseries{max-width:200px;overflow:hidden;text-overflow:ellipsis;color:var(--gt);font-size:11px}
.epill{display:inline-block;background:var(--off);border:1px solid var(--gray-mid);font-family:var(--fd);font-size:11px;font-weight:600;padding:3px 10px}
.fuel{color:var(--red);font-weight:700;font-size:10px;letter-spacing:.07em;text-transform:uppercase}
.tyr{color:var(--gt);font-size:12px}
.tc{text-align:center}

/* FEATURE STRIP */
.feature-strip{background:var(--black);margin-top:0;padding:36px 56px;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.feat{display:flex;align-items:flex-start;gap:16px;padding:0 24px;border-right:1px solid rgba(255,255,255,.08)}
.feat:first-child{padding-left:0}
.feat:last-child{border-right:none}
.feat-icon{color:var(--red);flex-shrink:0;margin-top:2px}
.feat-icon svg{width:24px;height:24px}
.feat-title{font-family:var(--fd);font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#fff;margin-bottom:4px}
.feat-desc{font-family:var(--fb);font-size:12px;color:rgba(255,255,255,.4);line-height:1.5}

/* FOOTER */
footer{background:var(--dark);border-top:3px solid var(--red);padding:28px 56px;display:flex;align-items:center;justify-content:space-between;font-family:var(--fd);font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:rgba(255,255,255,.2)}
footer img{height:26px;filter:brightness(0) invert(1) opacity(.2)}

@media(max-width:1024px){
  .product-grid{grid-template-columns:1fr}
  .img-panel{position:static}
  .ptitle{font-size:36px}.pcode{font-size:20px}
  .wrap,.bc,.feature-strip,footer{padding-left:24px;padding-right:24px}
  .hnav{display:none}.hsrch{display:none!important}
  .feature-strip{grid-template-columns:1fr 1fr;gap:24px}
  .feat{border-right:none;padding:0}
}

@media(max-width:640px){
  .pcard{font-size:12px}
}

/* ZOOM */
.img-box{cursor:zoom-in}
.img-zoom-overlay{position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:9999;align-items:center;justify-content:center;cursor:zoom-out;display:none}
.img-zoom-overlay img{max-width:90vw;max-height:90vh;object-fit:contain}
.img-zoom-close{position:absolute;top:20px;right:28px;color:#fff;font-size:36px;cursor:pointer;line-height:1;font-family:sans-serif;font-weight:300}

/* BENZEr ÜRÜNLER */
.related-sec{background:#f7f7f5;padding:48px 0}
.related-inner{max-width:1280px;margin:0 auto;padding:0 56px}
.related-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:24px}
.related-card{background:#fff;border:1.5px solid #e0e0de;text-decoration:none;color:#111;transition:all .2s;display:block}
.related-card:hover{border-color:#C8102E;transform:translateY(-2px);box-shadow:0 4px 20px rgba(0,0,0,.08)}
.related-card-img{aspect-ratio:1;display:flex;align-items:center;justify-content:center;padding:14px;border-bottom:1px solid #e0e0de}
.related-card-img img{max-width:80%;max-height:80%;object-fit:contain}
.related-card-body{padding:12px 14px}
.related-card-cat{font-family:'Barlow Condensed',sans-serif;font-size:9px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#C8102E;margin-bottom:3px}
.related-card-name{font-family:'Montserrat',sans-serif;font-size:12px;font-weight:700;text-transform:uppercase;color:#111;margin-bottom:2px}
.related-card-code{font-family:'Barlow Condensed',sans-serif;font-size:12px;color:#C8102E;font-weight:600}
@media(max-width:640px){.related-grid{grid-template-columns:repeat(2,1fr)}.related-inner{padding:0 24px}}

/* ÜRÜN KARTI TEKLİF BUTONU */
.pcard{overflow:visible}
.pcard-btn{display:block;width:100%;background:#C8102E;border:none;color:#fff;padding:10px;font-family:'Montserrat',sans-serif;font-weight:700;font-size:11px;letter-spacing:.06em;text-transform:uppercase;cursor:pointer;transition:background .2s;border-top:1px solid #e0e0de;text-align:center}
.pcard-btn:hover{background:#9B0B21}

/* FLOATING BUTONLAR */
.floating-btns{position:fixed!important;bottom:28px!important;right:24px!important;display:flex!important;flex-direction:column;gap:10px;z-index:99999!important}
.float-btn{width:52px;height:52px;border-radius:50%!important;display:flex!important;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 16px rgba(0,0,0,.25);transition:all .2s;border:none;text-decoration:none}
.whatsapp-btn{background:#25D366!important}
.totop-btn{background:#111!important;opacity:0;pointer-events:none;transition:opacity .3s}
.totop-btn.visible{opacity:1!important;pointer-events:all}