.cy{--g:#E3B25A;--g2:#C9952F;--ink:#141414;--ink2:#3a3a3a;--mute:#6b6b6b;--line:#e4e4e4;--bg:#fff;--bg2:#F5F5F5;
 font-family:Manrope,system-ui,sans-serif;color:var(--ink);background:var(--bg);font-size:16px;line-height:1.6;overflow-x:clip}
.cy *,.cy *::before,.cy *::after{box-sizing:border-box}
.cy h1,.cy h2,.cy h3{font-family:Manrope,system-ui,sans-serif;color:inherit;margin:0;letter-spacing:-.02em;line-height:1.12;text-wrap:balance;font-weight:700;text-transform:none}
.cy p{margin:0 0 1em;color:inherit}
.cy a{color:inherit}
.cy img{display:block;max-width:100%;height:auto}
.cy .in{width:min(1200px,100% - 40px);margin-inline:auto}
.cy section{padding:72px 0}
.cy .btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;font-weight:700;font-size:14px;text-decoration:none;border:1px solid transparent;border-radius:2px;transition:background .2s,color .2s,border-color .2s}
.cy .btn-g{background:var(--g);color:#141414}.cy .btn-g:hover{background:#f0c676}
.cy .btn-o{border-color:currentColor}.cy .btn-o:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.cy a:focus-visible,.cy summary:focus-visible{outline:2px solid var(--g);outline-offset:3px}
.cy .lead{font-size:18px;color:var(--ink2);max-width:60ch}
.cy details{border-bottom:1px solid var(--line)}
.cy summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 0;font-weight:700}
.cy summary::-webkit-details-marker{display:none}
.cy summary small{font-weight:500;color:var(--mute);font-size:13px;white-space:nowrap}
.cy summary::after{content:"";width:9px;height:9px;border-right:2px solid var(--g2);border-bottom:2px solid var(--g2);transform:rotate(45deg);margin:-4px 4px 0 0;transition:transform .2s;flex:none}
.cy details[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.cy details ul{margin:0 0 14px;padding:0;list-style:none;columns:2 220px;column-gap:28px}
.cy details li{padding:4px 0 4px 14px;position:relative;font-size:15px;color:var(--ink2);break-inside:avoid}
.cy details li::before{content:"";position:absolute;left:0;top:.9em;width:6px;height:1px;background:var(--g2)}
.cy .cy-note{font-size:15px;color:var(--ink2);max-width:62ch}
.cy .cy-more{display:inline-block;font-size:14px;font-weight:700;margin:0 0 18px;text-decoration:underline;text-decoration-color:var(--g);text-underline-offset:4px}
.cy .plain{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.cy .plain a{padding:9px 14px;border:1px solid var(--line);font-size:14px;font-weight:600;text-decoration:none;border-radius:2px}
.cy .plain a:hover{border-color:var(--g2)}
.cy .contact{background:#1d1d1d;color:#fff}
.cy .contact .in{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:28px}
.cy .contact h2{font-size:clamp(26px,3vw,36px);max-width:22ch}
.cy .contact .lines{display:flex;flex-wrap:wrap;gap:12px}
.cy .contact .btn-o:hover{background:#fff;color:#141414;border-color:#fff}
@media(max-width:700px){.cy section{padding:52px 0}.cy .lead{font-size:16px}}
@media(prefers-reduced-motion:reduce){.cy *{transition:none!important}}

.hd{position:sticky;top:0;z-index:100;font-family:Manrope,system-ui,sans-serif}
.hd .hd-in{display:flex;align-items:center;gap:32px;height:76px}
.hd-logo{flex:none;display:block}.hd-logo img{height:46px;width:auto}
.hd-nav{display:flex;gap:28px;margin-left:auto}
.hd-nav a{text-decoration:none;font-weight:700;font-size:14px;padding:8px 0;position:relative}
.hd-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--g);transition:right .25s}
.hd-nav a:hover::after{right:0}
.hd-tel{flex:none;text-decoration:none;font-weight:700;font-size:14px;padding:10px 16px;border-radius:2px}
.hd-btn{display:none;margin-left:auto;background:none;border:0;padding:10px;cursor:pointer;color:inherit}
.hd-btn span{display:block;width:24px;height:2px;background:currentColor;margin:5px 0;transition:transform .2s,opacity .2s}
.hd.open .hd-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hd.open .hd-btn span:nth-child(2){opacity:0}
.hd.open .hd-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:960px){
 .hd .hd-in{height:66px}.hd-logo img{height:38px}.hd-tel{display:none}.hd-btn{display:block}
 .hd-nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;padding:8px 20px 20px;margin:0}
 .hd.open .hd-nav{display:flex}.hd-nav a{padding:14px 0;font-size:16px;border-bottom:1px solid rgba(128,128,128,.25)}
 .hd-nav a::after{display:none}}
.ft{font-family:Manrope,system-ui,sans-serif;font-size:15px;line-height:1.6}
.ft a{text-decoration:none}.ft a:hover{text-decoration:underline;text-decoration-color:var(--g);text-underline-offset:4px}
.ft ul{list-style:none;margin:0;padding:0}.ft li{margin:0 0 8px}
.ft .ft-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;padding:18px 0}

.hd-d{position:fixed;left:0;right:0;color:#fff;background:transparent;border-bottom:1px solid rgba(255,255,255,.18);transition:background .3s,border-color .3s}
.hd-d.solid,.hd-d.open{background:#242424;border-color:#333}
.hd-d .hd-in{height:96px}
.hd-d .hd-logo img{height:54px}
.hd-d .hd-nav{margin-left:auto;margin-right:auto;gap:34px}
.hd-d .hd-nav a{text-transform:uppercase;font-size:13.5px;letter-spacing:.02em}
.hd-d .hd-tel{color:#fff;display:flex;flex-direction:column;line-height:1.3;padding:0 0 0 18px;border-left:2px solid #E3B25A}
.hd-d .hd-tel small{font-weight:500;color:#aaa;font-size:12px}
.hd-d .hd-nav{background:#242424}
@media(min-width:961px){.hd-d .hd-nav{background:none}}
@media(max-width:960px){.hd-d .hd-in{height:72px}.hd-d .hd-logo img{height:42px}.hd-d .hd-tel{display:none}}
.ft-d{background:#242424 url(https://cylnmuhendislik.com/wp-content/uploads/2022/06/bg-footer-right.png) center/contain no-repeat;color:#bdbdbd}
.ft-d .row{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:30px;padding:54px 0 40px}
.ft-d .it{display:flex;gap:14px;align-items:center}
.ft-d .it:last-child{justify-content:flex-end;text-align:left}
.ft-d .it svg{flex:none;color:#E3B25A}
.ft-d .it small{display:block;font-size:12px;color:#8a8a8a}
.ft-d .it a{color:#fff;font-size:17px;font-weight:600}
.ft-d .row>img{height:56px;width:auto;margin:auto}
.ft-d nav{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 30px;padding:0 0 30px}
.ft-d nav a{color:#fff;font-weight:700;font-size:13px;text-transform:uppercase}
.ft-d .ft-bottom{border-top:1px solid #363636;color:#8a8a8a;justify-content:center}
@media(max-width:760px){.ft-d .row{grid-template-columns:1fr;text-align:center;justify-items:center}.ft-d .row>img{order:-1}.ft-d .it:last-child{justify-content:flex-start}}

.cy-d .hero{position:relative;padding:96px 0 0;height:min(88vh,780px);min-height:600px;background:#111;overflow:hidden}
.cy-d .sl{position:absolute;inset:0;opacity:0;transition:opacity 1s}
.cy-d .sl.on{opacity:1}
.cy-d .sl img{width:100%;height:100%;object-fit:cover;transform:scale(1.04);transition:transform 7s linear}
.cy-d .sl.on img{transform:scale(1)}
.cy-d .hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(17,17,17,.6) 0%,rgba(17,17,17,0) 22%),linear-gradient(90deg,rgba(17,17,17,.85) 0%,rgba(17,17,17,.45) 55%,rgba(17,17,17,.1) 100%);pointer-events:none}
.cy-d .hero .in{position:relative;z-index:1;height:calc(100% - 70px);display:flex;flex-direction:column;justify-content:center;color:#fff}
.cy-d .hero .k{font-size:14px;font-weight:700;color:#E3B25A;margin-bottom:16px;display:flex;align-items:center;gap:12px}
.cy-d .hero .k::before{content:"";width:36px;height:2px;background:#E3B25A}
.cy-d .hero h1{font-size:clamp(34px,4.6vw,60px);max-width:17ch;margin-bottom:18px}
.cy-d .hero .acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.cy-d .hero .btn-w{background:#fff;color:#141414}.cy-d .hero .btn-w:hover{background:#E3B25A}
.cy-d .hero .btn-o:hover{background:#fff;color:#141414;border-color:#fff}
.cy-d .dots{position:absolute;z-index:2;left:0;right:0;bottom:32px}
.cy-d .dots .in{display:flex;justify-content:space-between;align-items:end;gap:20px;height:auto}
.cy-d .dots .cap{font-size:13px;color:#ccc}.cy-d .dots .cap b{color:#fff;display:block;font-size:15px}
.cy-d .dots nav{display:flex;gap:10px}
.cy-d .dots button{width:36px;height:24px;border:0;background:none;padding:0;cursor:pointer;position:relative}
.cy-d .dots button::after{content:"";position:absolute;left:0;right:0;top:11px;height:2px;background:rgba(255,255,255,.4)}
.cy-d .dots button[aria-current="true"]::after{background:#E3B25A}
.cy-d .about{padding:96px 0;background:#fff url(https://cylnmuhendislik.com/wp-content/uploads/2022/06/background-about-section1.png) right bottom/auto 70% no-repeat}
.cy-d .about .in{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.cy-d .ph{position:relative;padding:34px 0 0 34px}
.cy-d .ph::before{content:"";position:absolute;left:12%;top:0;right:-6%;bottom:12%;background:#e2e2e2;clip-path:polygon(0 6%,100% 0,100% 100%,0 100%)}
.cy-d .ph img{position:relative;width:88%;aspect-ratio:1/1;object-fit:cover;box-shadow:0 20px 40px rgba(0,0,0,.12)}
.cy-d .ttl{display:flex;align-items:center;gap:12px;font-size:14px;font-weight:700;color:#C9952F;margin-bottom:10px}
.cy-d .ttl::before{content:"";width:30px;height:2px;background:#E3B25A}
.cy-d h2{font-size:clamp(28px,3vw,40px);margin-bottom:20px}
.cy-d .about p{color:#3a3a3a}
.cy-d .svc{background:#F5F5F5;padding:88px 0}
.cy-d .svc .hd2{text-align:center;max-width:760px;margin:0 auto 44px}
.cy-d .svc .hd2 .ttl{justify-content:center}
.cy-d .svc .hd2 p{color:#3a3a3a;font-size:17px}
.cy-d .cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cy-d .card{background:#fff;padding:28px 24px 22px;display:flex;flex-direction:column;text-decoration:none;border-bottom:3px solid transparent;transition:border-color .25s,box-shadow .25s}
.cy-d .card:hover{border-color:#E3B25A;box-shadow:0 14px 34px rgba(0,0,0,.07)}
.cy-d .card svg{color:#C9952F;margin-bottom:18px}
.cy-d .card h3{font-size:17px;margin-bottom:12px}
.cy-d .card ul{list-style:none;margin:0 0 16px;padding:0}
.cy-d .card li{font-size:14px;color:#555;padding:3px 0 3px 14px;position:relative}
.cy-d .card li::before{content:"";position:absolute;left:0;top:.85em;width:6px;height:1px;background:#C9952F}
.cy-d .card .more{margin-top:auto;padding-top:14px;border-top:1px solid #eee;display:flex;justify-content:space-between;font-size:13px;font-weight:700;color:#141414}
.cy-d .card .more span:last-child{color:#C9952F}
.cy-d .others{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:30px}
.cy-d .others a{font-size:13.5px;font-weight:600;padding:8px 14px;background:#fff;text-decoration:none;border:1px solid #e2e2e2}
.cy-d .others a:hover{border-color:#C9952F}
.cy-d .cta{margin-top:44px;background:#242424;color:#fff;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;padding:26px 30px}
.cy-d .cta p{margin:0;font-size:18px;font-weight:600}
.cy-d .proj{padding:88px 0}
.cy-d .proj h2{text-align:center;margin-bottom:44px}
.cy-d .proj .lay{display:grid;grid-template-columns:200px 1fr;gap:40px}
.cy-d .flt{display:flex;flex-direction:column;justify-content:space-between;gap:30px}
.cy-d .flt ul{list-style:none;margin:0;padding:0;border-left:2px solid #e4e4e4}
.cy-d .flt button{display:block;background:none;border:0;border-left:2px solid transparent;margin-left:-2px;padding:9px 16px;font:600 16px Manrope,sans-serif;color:#6b6b6b;cursor:pointer;text-align:left}
.cy-d .flt button sup{font-size:11px;margin-left:3px}
.cy-d .flt button[aria-pressed="true"]{color:#141414;border-color:#E3B25A}
.cy-d .arr{display:flex;gap:8px}
.cy-d .arr button{width:46px;height:46px;border:1px solid #141414;background:#fff;cursor:pointer;font-size:18px;line-height:1}
.cy-d .arr button:hover{background:#141414;color:#fff}
.cy-d .trk{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 20px)/2.15);gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.cy-d .trk::-webkit-scrollbar{display:none}
.cy-d .pc{scroll-snap-align:start;position:relative;display:block;aspect-ratio:4/3.3;overflow:hidden;text-decoration:none;color:#fff}
.cy-d .pc[hidden]{display:none}
.cy-d .pc img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.cy-d .pc:hover img{transform:scale(1.04)}
.cy-d .pc::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.8),transparent 50%)}
.cy-d .pc div{position:absolute;z-index:1;left:22px;right:22px;bottom:20px}
.cy-d .pc small{font-size:13px;color:#E3B25A;font-weight:700}
.cy-d .pc h3{font-size:21px;margin-top:4px}
.cy-d .pc span{font-size:13px;color:#ddd}
@media(max-width:1000px){.cy-d .cards{grid-template-columns:1fr 1fr}.cy-d .about .in{grid-template-columns:1fr;gap:40px}}
@media(max-width:760px){.cy-d .proj .lay{grid-template-columns:1fr;gap:20px}.cy-d .flt{flex-direction:row;align-items:center}
 .cy-d .flt ul{display:flex;border-left:0;border-bottom:2px solid #e4e4e4;overflow-x:auto}.cy-d .flt button{border-left:0;border-bottom:2px solid transparent;margin:0 0 -2px;padding:8px 12px;white-space:nowrap}
 .cy-d .arr{display:none}.cy-d .trk{grid-auto-columns:85%}.cy-d .hero{min-height:560px}.cy-d .about,.cy-d .svc,.cy-d .proj{padding:60px 0}}
@media(max-width:520px){.cy-d .cards{grid-template-columns:1fr}.cy-d .dots .cap{display:none}}