/* MesKron Demir Çelik – tema */
:root{
  --steel-900:#0f141a;--steel-800:#161d26;--steel-700:#1b2430;--steel-600:#2a3645;--steel-500:#3d4b5c;--steel-400:#5f6b7a;--steel-300:#8b96a3;--steel-200:#c5ccd4;--steel-100:#e3e7eb;--steel-50:#f4f6f8;
  --molten:#f06a1d;--molten-dark:#c7520f;--molten-glow:rgba(240,106,29,.35);
  --font-head:'Oswald','Barlow Condensed',Impact,sans-serif;--font-body:'Barlow','Segoe UI',Roboto,Arial,sans-serif;
  --radius:6px;--shadow:0 10px 30px rgba(0,0,0,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--steel-700);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.5px;line-height:1.1;font-weight:600}
.container{width:min(1180px,92%);margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:var(--radius);font-family:var(--font-head);font-size:16px;letter-spacing:1px;text-transform:uppercase;border:0;cursor:pointer;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--molten);color:#fff;box-shadow:0 6px 18px var(--molten-glow)}
.btn-primary:hover{background:var(--molten-dark);transform:translateY(-1px)}
.btn-ghost{border:2px solid rgba(255,255,255,.35);color:#fff;background:transparent}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-dark{background:var(--steel-700);color:#fff}
.btn-dark:hover{background:var(--steel-600)}
.btn:disabled{opacity:.6;cursor:wait;transform:none}
.eyebrow{display:inline-block;font-family:var(--font-head);font-size:13px;letter-spacing:3px;text-transform:uppercase;color:var(--molten);margin-bottom:10px;position:relative;padding-left:38px}
.eyebrow::before{content:"";position:absolute;left:0;top:50%;width:28px;height:3px;background:var(--molten)}
.section{padding:90px 0}
.section-head{max-width:640px;margin-bottom:48px}
.section-head h2{font-size:clamp(30px,4vw,44px);color:var(--steel-800)}
.section-head p{color:var(--steel-400);font-size:17px;margin-top:12px}
.dark{background:var(--steel-800);color:#fff}
.dark .section-head h2{color:#fff}.dark .section-head p{color:var(--steel-300)}

/* top bar + nav */
.topbar{background:var(--steel-900);color:var(--steel-300);font-size:13px;padding:7px 0}
.topbar .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.topbar span{display:inline-flex;align-items:center;gap:6px;margin-right:18px}
.topbar svg{width:14px;height:14px;fill:var(--molten)}
.nav{position:sticky;top:0;z-index:50;background:var(--steel-800);border-bottom:3px solid var(--molten);box-shadow:0 4px 20px rgba(0,0,0,.3)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:12px;color:#fff}
.logo-mark{width:44px;height:44px;background:linear-gradient(135deg,var(--molten),#ff9a4d);clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);display:grid;place-items:center;font-family:var(--font-head);font-weight:700;font-size:22px;color:#fff}
.logo-text{font-family:var(--font-head);font-size:22px;letter-spacing:1px;line-height:1}
.logo-text small{display:block;font-size:11px;letter-spacing:3px;color:var(--steel-300);font-weight:400;margin-top:3px}
.menu{display:flex;gap:4px;align-items:center;list-style:none}
.menu a{display:block;padding:10px 14px;color:var(--steel-200);font-weight:600;font-size:15px;border-bottom:2px solid transparent;transition:.2s}
.menu a:hover{color:#fff;border-color:var(--molten)}
.menu .btn{padding:11px 20px;font-size:14px;margin-left:10px}
.burger{display:none;background:none;border:0;color:#fff;width:44px;height:44px;cursor:pointer}
.burger span{display:block;width:26px;height:3px;background:#fff;margin:5px auto;transition:.2s}

/* hero */
.hero{position:relative;min-height:640px;display:flex;align-items:center;color:#fff;overflow:hidden;
  background:linear-gradient(100deg,rgba(15,20,26,.96) 0%,rgba(27,36,48,.9) 55%,rgba(27,36,48,.55) 100%),
  repeating-linear-gradient(135deg,#1f2a37 0 14px,#232f3d 14px 28px)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 85% 50%,rgba(240,106,29,.28),transparent 55%)}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:620px;height:900px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 2px,transparent 2px 46px),linear-gradient(180deg,#39485a,#1b2430);transform:rotate(12deg);opacity:.5}
.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:70px 0}
.hero h1{font-size:clamp(40px,6vw,74px);line-height:1;margin:14px 0 20px}
.hero h1 em{font-style:normal;color:var(--molten)}
.hero p{font-size:19px;color:var(--steel-200);max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:rgba(15,20,26,.75);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.12);border-top:4px solid var(--molten);padding:28px;border-radius:var(--radius)}
.hero-card h3{font-size:20px;margin-bottom:16px}
.hero-card ul{list-style:none;display:grid;gap:12px}
.hero-card li{display:flex;gap:12px;align-items:flex-start;color:var(--steel-200);font-size:15px}
.hero-card li b{color:#fff;display:block;font-size:16px}
.hero-card .ico{width:34px;height:34px;flex:none;border-radius:4px;background:rgba(240,106,29,.18);display:grid;place-items:center}
.hero-card .ico svg{width:18px;height:18px;fill:var(--molten)}
.stats{background:var(--molten);color:#fff}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:26px 10px;text-align:center;border-right:1px solid rgba(255,255,255,.25)}
.stat:last-child{border:0}
.stat b{display:block;font-family:var(--font-head);font-size:40px;line-height:1}
.stat span{font-size:14px;letter-spacing:1px;text-transform:uppercase;opacity:.9}

/* about */
.about .container{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-visual{position:relative;min-height:420px;border-radius:var(--radius);overflow:hidden;background:linear-gradient(160deg,#2a3645,#0f141a)}
.about-visual::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 38px,rgba(255,255,255,.07) 38px 40px),repeating-linear-gradient(90deg,transparent 0 38px,rgba(255,255,255,.07) 38px 40px)}
.about-visual .beam{position:absolute;left:8%;right:8%;height:34px;background:linear-gradient(180deg,#7d8a99,#4a5767 50%,#7d8a99);box-shadow:0 10px 30px rgba(0,0,0,.5)}
.about-visual .beam:nth-child(1){top:22%;transform:rotate(-6deg)}.about-visual .beam:nth-child(2){top:48%;transform:rotate(-6deg)}.about-visual .beam:nth-child(3){top:74%;transform:rotate(-6deg)}
.about-badge{position:absolute;right:24px;bottom:24px;background:var(--molten);color:#fff;padding:18px 22px;border-radius:var(--radius);font-family:var(--font-head);text-transform:uppercase;letter-spacing:1px;line-height:1.1;box-shadow:var(--shadow)}
.about-badge b{display:block;font-size:42px}
.about h2{font-size:clamp(30px,4vw,44px);color:var(--steel-800);margin-bottom:18px}
.about p{color:var(--steel-400);margin-bottom:14px;font-size:16.5px}
.checks{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;margin:22px 0 30px}
.checks li{display:flex;gap:10px;align-items:center;font-weight:600}
.checks li::before{content:"";width:22px;height:22px;flex:none;border-radius:50%;background:var(--molten) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center/13px no-repeat}

/* products */
.products{background:var(--steel-50)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.06);transition:.25s;border-bottom:3px solid transparent;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--molten)}
.card-visual{height:170px;position:relative;overflow:hidden;background:linear-gradient(145deg,#2a3645,#161d26)}
.card-visual svg{position:absolute;right:18px;bottom:-10px;width:140px;height:140px;opacity:.9}
.card-visual .tag{position:absolute;left:16px;top:16px;background:var(--molten);color:#fff;font-family:var(--font-head);font-size:12px;letter-spacing:2px;padding:4px 10px}
.card-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column}
.card h3{font-size:22px;color:var(--steel-800);margin-bottom:8px}
.card p{color:var(--steel-400);font-size:15px;flex:1}
.card .specs{list-style:none;margin:14px 0 18px;display:flex;flex-wrap:wrap;gap:6px}
.card .specs li{font-size:12px;background:var(--steel-50);border:1px solid var(--steel-100);padding:3px 9px;border-radius:3px;color:var(--steel-500);font-weight:600}
.card a.link{color:var(--molten);font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:1px}
.card a.link:hover{text-decoration:underline}

/* services */
.services .grid-3{grid-template-columns:repeat(4,1fr)}
.service{padding:30px 26px;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);background:rgba(255,255,255,.03);transition:.25s}
.service:hover{background:rgba(240,106,29,.1);border-color:rgba(240,106,29,.5)}
.service .ico{width:56px;height:56px;border-radius:8px;background:var(--molten);display:grid;place-items:center;margin-bottom:18px}
.service .ico svg{width:28px;height:28px;fill:#fff}
.service h3{font-size:20px;margin-bottom:8px}
.service p{color:var(--steel-300);font-size:15px}

/* quote form */
.quote{position:relative;background:linear-gradient(135deg,#fff 0%,var(--steel-50) 100%)}
.quote .container{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:start}
.quote-side{position:sticky;top:100px}
.quote-side h2{font-size:clamp(30px,4vw,44px);color:var(--steel-800)}
.quote-side p{color:var(--steel-400);margin:14px 0 26px;font-size:17px}
.steps{list-style:none;display:grid;gap:16px}
.steps li{display:flex;gap:14px;align-items:flex-start}
.steps .n{width:38px;height:38px;flex:none;border-radius:50%;background:var(--steel-700);color:#fff;display:grid;place-items:center;font-family:var(--font-head);font-size:18px}
.steps b{display:block;color:var(--steel-800)}.steps span{color:var(--steel-400);font-size:14.5px}
.form-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:34px;border-top:5px solid var(--molten)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-weight:700;font-size:14px;color:var(--steel-700)}
.field label .req{color:var(--molten)}
.field input,.field select,.field textarea{font:inherit;font-size:15px;padding:12px 14px;border:1.5px solid var(--steel-200);border-radius:4px;background:#fff;transition:.15s;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--molten);box-shadow:0 0 0 3px rgba(240,106,29,.15)}
.field textarea{min-height:110px;resize:vertical}
.field .opts{display:flex;flex-wrap:wrap;gap:8px 18px;padding:6px 0}
.field .opts label{font-weight:500;display:flex;gap:7px;align-items:center;cursor:pointer}
.field .opts input{width:auto}
.field.error input,.field.error select,.field.error textarea{border-color:#d93025}
.field .err{color:#d93025;font-size:13px;display:none}
.field.error .err{display:block}
.kvkk{grid-column:1/-1;display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--steel-400)}
.kvkk input{margin-top:4px}
.kvkk.error{color:#d93025}
.form-foot{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px}
.form-foot small{color:var(--steel-400)}
.alert{padding:14px 16px;border-radius:4px;margin-bottom:18px;font-size:15px;display:none}
.alert.show{display:block}
.alert.ok{background:#e6f6ec;border:1px solid #9fd8b4;color:#146c2e}
.alert.bad{background:#fdecea;border:1px solid #f5b5ae;color:#a4221a}
.success-box{text-align:center;padding:30px 10px}
.success-box .big{width:84px;height:84px;border-radius:50%;background:#e6f6ec;margin:0 auto 18px;display:grid;place-items:center}
.success-box .big svg{width:42px;height:42px;stroke:#1b8a3f;fill:none;stroke-width:3}
.success-box h3{font-size:26px;color:var(--steel-800);margin-bottom:10px}
.success-box p{color:var(--steel-400);max-width:460px;margin:0 auto 20px}
.success-box .ref{font-family:var(--font-head);font-size:22px;letter-spacing:2px;color:var(--molten)}
.honey{position:absolute;left:-9999px;opacity:0}

/* contact */
.contact .container{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.contact-list{list-style:none;display:grid;gap:18px;margin-top:24px}
.contact-list li{display:flex;gap:16px;align-items:flex-start}
.contact-list .ico{width:46px;height:46px;flex:none;border-radius:6px;background:rgba(240,106,29,.15);display:grid;place-items:center}
.contact-list .ico svg{width:22px;height:22px;fill:var(--molten)}
.contact-list b{display:block;font-size:13px;letter-spacing:2px;text-transform:uppercase;color:var(--steel-300)}
.contact-list span{font-size:17px}
.map{border-radius:var(--radius);overflow:hidden;min-height:360px;border:1px solid rgba(255,255,255,.1);background:var(--steel-700)}
.map iframe{width:100%;height:100%;min-height:360px;border:0;filter:grayscale(.3) contrast(1.05)}

/* footer */
footer{background:var(--steel-900);color:var(--steel-300);padding:50px 0 0;font-size:14.5px}
footer .container{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
footer h4{color:#fff;font-size:16px;letter-spacing:2px;margin-bottom:14px}
footer ul{list-style:none;display:grid;gap:8px}
footer a:hover{color:var(--molten)}
.foot-bottom{margin-top:40px;border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:13px}
.foot-bottom .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;grid-template-columns:none}
.whatsapp-fab{position:fixed;right:22px;bottom:22px;z-index:60;width:58px;height:58px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.3);transition:.2s}
.whatsapp-fab:hover{transform:scale(1.08)}
.whatsapp-fab svg{width:30px;height:30px;fill:#fff}
.reveal{opacity:0;transform:translateY(22px);transition:.6s ease}
.reveal.in{opacity:1;transform:none}

@media (max-width:1000px){
  .hero .container,.about .container,.quote .container,.contact .container{grid-template-columns:1fr}
  .grid-3,.services .grid-3{grid-template-columns:1fr 1fr}
  footer .container{grid-template-columns:1fr 1fr}
  .quote-side{position:static}
  .stats .container{grid-template-columns:1fr 1fr}.stat:nth-child(2){border:0}
}
@media (max-width:760px){
  .burger{display:block}
  .menu{display:none;position:absolute;left:0;right:0;top:74px;background:var(--steel-800);flex-direction:column;padding:10px 4% 20px;border-bottom:3px solid var(--molten)}
  .menu.open{display:flex}
  .menu a{padding:14px 10px;border-bottom:1px solid rgba(255,255,255,.06)}
  .menu .btn{margin:12px 0 0}
  .burger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}.burger.open span:nth-child(2){opacity:0}.burger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .section{padding:60px 0}
  .grid-3,.services .grid-3{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}.field.half{grid-column:1/-1}
  .form-card{padding:24px 18px}
  .checks{grid-template-columns:1fr}
  footer .container{grid-template-columns:1fr}
  .topbar .container{justify-content:center}
  .hero{min-height:auto}
}