/* ===== Kültür İSG ===== */
:root{
  --navy:#0b3a67;
  --navy-2:#0f4a82;
  --orange:#f7a823;
  --orange-d:#e6890a;
  --red:#e2231a;
  --ink:#1c2733;
  --muted:#5b6b7b;
  --bg:#f5f8fc;
  --white:#ffffff;
  --line:#e3e9f1;
  --radius:16px;
  --shadow:0 18px 45px -20px rgba(11,58,103,.35);
  --container:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','Segoe UI',system-ui,Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
section{padding:84px 0}

/* ===== Preloader ===== */
#preloader{position:fixed;inset:0;z-index:9999;background:var(--navy);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;transition:opacity .6s ease,visibility .6s ease}
#preloader.hide{opacity:0;visibility:hidden}
.pre-hat{width:84px;height:84px;animation:bob 1.4s ease-in-out infinite}
.pre-hat svg{width:100%;height:100%;filter:drop-shadow(0 8px 18px rgba(0,0,0,.35))}
.pre-ring{width:54px;height:54px;border:5px solid rgba(255,255,255,.15);border-top-color:var(--orange);border-radius:50%;animation:spin .9s linear infinite}
.pre-text{color:#cfe0f2;letter-spacing:6px;font-size:13px;font-weight:600}
.pre-text b{color:var(--orange)}
.pre-bar{width:180px;height:4px;background:rgba(255,255,255,.12);border-radius:99px;overflow:hidden}
.pre-bar span{display:block;height:100%;width:0;background:var(--orange);border-radius:99px;animation:load 1.6s ease forwards}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes load{to{width:100%}}

/* ===== Topbar ===== */
.topbar{background:#fff;border-bottom:1px solid var(--line);font-size:13px}
.topbar .in{display:flex;align-items:center;justify-content:space-between;height:54px;gap:16px}
.topbar .uni{display:flex;align-items:center;gap:12px;color:var(--muted)}
.topbar .uni img{height:34px}
.topbar .uni span{font-weight:600;color:var(--navy);font-size:12px;line-height:1.2}
.topbar .meta{display:flex;gap:22px;color:var(--muted)}
.topbar .meta a{display:flex;align-items:center;gap:7px;font-weight:600}
.topbar .meta a:hover{color:var(--orange-d)}
.topbar .meta svg{width:15px;height:15px;color:var(--orange-d)}

/* ===== Header ===== */
header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:.3s}
header.scrolled{box-shadow:0 8px 26px -16px rgba(11,58,103,.4)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.nav .logo img{height:48px}
.nav ul{display:flex;gap:28px;list-style:none}
.nav ul a{font-weight:600;font-size:15px;color:var(--navy);position:relative;padding:6px 0}
.nav ul a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--orange);transition:.3s}
.nav ul a:hover::after,.nav ul a.active::after{width:100%}
.nav ul a.active{color:var(--orange-d)}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:13px 26px;border-radius:99px;border:0;cursor:pointer;transition:.25s}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 12px 24px -10px var(--orange-d)}
.btn-primary:hover{background:var(--orange-d);transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--navy);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange-d)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:var(--navy);color:#fff}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px}
.nav-toggle span{width:26px;height:3px;background:var(--navy);border-radius:9px;transition:.3s}

/* ===== Hero (home) ===== */
.hero{position:relative;overflow:hidden;color:#fff;padding:120px 0 110px;background:linear-gradient(120deg,rgba(8,40,73,.94) 0%,rgba(13,58,103,.86) 45%,rgba(21,88,154,.72) 100%),url("../img/isg-1.jpg") center/cover no-repeat}
.hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center;position:relative}
.hero-uni{display:inline-flex;align-items:center;gap:12px;background:#fff;border-radius:14px;padding:9px 16px 9px 12px;margin-bottom:18px;box-shadow:0 16px 34px -16px rgba(0,0,0,.55)}
.hero-uni img{height:42px}
.hero-uni span{font-size:12.5px;font-weight:700;color:var(--navy);line-height:1.25;max-width:180px}
.tagline{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);padding:8px 16px;border-radius:99px;font-size:13px;font-weight:600;letter-spacing:.3px;margin-bottom:22px;border:1px solid rgba(255,255,255,.18)}
.tagline i{width:8px;height:8px;border-radius:50%;background:var(--orange)}
.hero h1{font-size:clamp(2rem,4.4vw,3.4rem);line-height:1.12;font-weight:800;margin-bottom:20px}
.hero h1 span{color:var(--orange)}
.hero p{font-size:18px;color:#d8e6f5;max-width:540px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);border-radius:24px;padding:34px;backdrop-filter:blur(6px)}
.hero-card h3{font-size:20px;margin-bottom:18px}
.hero-card ul{list-style:none;display:flex;flex-direction:column;gap:14px}
.hero-card li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#e7f0fb}
.hero-card li svg{flex:0 0 22px;margin-top:2px}

/* ===== Page hero (subpages) ===== */
.page-hero{position:relative;color:#fff;padding:84px 0;background:linear-gradient(120deg,rgba(8,40,73,.92),rgba(13,58,103,.82)),var(--ph,url("../img/isg-2.jpg")) center/cover no-repeat}
.page-hero h1{font-size:clamp(1.8rem,3.6vw,2.8rem);font-weight:800;margin-bottom:10px}
.page-hero .crumb{font-size:14px;color:#cfe0f2}
.page-hero .crumb a:hover{color:var(--orange)}
.page-hero .crumb b{color:var(--orange)}

/* ===== Stats ===== */
.stats{padding:0}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;transform:translateY(-50px)}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-size:38px;font-weight:800;color:var(--navy)}
.stat b em{color:var(--orange);font-style:normal}
.stat span{color:var(--muted);font-size:14px;font-weight:600}

/* ===== Section heads ===== */
.sec-head{text-align:center;max-width:700px;margin:0 auto 52px}
.sec-head.left{text-align:left;margin-left:0}
.kicker{color:var(--orange-d);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:13px}
.sec-head h2{font-size:clamp(1.7rem,3vw,2.4rem);font-weight:800;color:var(--navy);margin:10px 0 14px}
.sec-head p{color:var(--muted);font-size:17px}

/* ===== Cards (services) ===== */
.services{background:var(--bg)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;transition:.3s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.card .ico{width:58px;height:58px;border-radius:14px;background:linear-gradient(135deg,#fff3dc,#ffe3b0);display:grid;place-items:center;margin-bottom:20px}
.card .ico svg{width:30px;height:30px;color:var(--orange-d)}
.card h3{font-size:19px;color:var(--navy);margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.card .more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--orange-d);font-weight:700;font-size:14px}
.card .more svg{width:16px;transition:.2s}
.card:hover .more svg{transform:translateX(4px)}

/* ===== Split (image + text) ===== */
.split .grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.split.rev .media{order:2}
.media-img{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);position:relative;min-height:380px}
.media-img img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.media-img .badge{position:absolute;bottom:22px;left:22px;background:#fff;border-radius:16px;padding:16px 20px;box-shadow:var(--shadow);z-index:2}
.media-img .badge b{font-size:24px;color:var(--navy);display:block}
.media-img .badge span{font-size:13px;color:var(--muted);font-weight:600}
.split h2{font-size:clamp(1.7rem,3vw,2.3rem);font-weight:800;color:var(--navy);margin:12px 0 16px}
.split p{color:var(--muted);margin-bottom:16px;font-size:16px}
.check-list{list-style:none;display:grid;gap:14px;margin-top:20px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-weight:600;color:var(--ink)}
.check-list li svg{flex:0 0 22px;color:var(--orange-d)}

/* ===== Training ===== */
.training{background:var(--bg)}
.train-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.train-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px;display:flex;gap:16px;align-items:center;transition:.25s}
.train-item:hover{border-color:var(--orange);transform:translateX(4px)}
.train-item .num{flex:0 0 44px;height:44px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800}
.train-item h4{font-size:16px;color:var(--navy)}
.train-item p{font-size:14px;color:var(--muted)}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{text-align:center;padding:24px}
.step .n{width:60px;height:60px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--orange-d));color:#fff;display:grid;place-items:center;font-size:22px;font-weight:800;box-shadow:0 12px 24px -10px var(--orange-d)}
.step h4{color:var(--navy);font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* ===== CTA ===== */
.cta-band{background:linear-gradient(135deg,var(--orange),var(--orange-d));color:#fff;border-radius:24px;padding:52px;text-align:center;box-shadow:var(--shadow)}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;margin-bottom:12px}
.cta-band p{font-size:17px;opacity:.95;margin-bottom:26px}
.cta-band .btn-light{color:var(--orange-d)}

/* ===== Contact ===== */
.contact .grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px}
.info-card{display:flex;gap:16px;align-items:flex-start;margin-bottom:24px}
.info-card .ico{flex:0 0 50px;height:50px;border-radius:12px;background:#eef4fb;display:grid;place-items:center;color:var(--navy)}
.info-card h4{color:var(--navy);font-size:16px;margin-bottom:3px}
.info-card p{color:var(--muted);font-size:15px}
form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:7px;color:var(--navy)}
.field input,.field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:11px;font-family:inherit;font-size:15px;transition:.2s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--orange)}
.field textarea{resize:vertical;min-height:120px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}

/* ===== Footer ===== */
footer{background:var(--navy);color:#cdd9e6;padding:58px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
footer .flogo img{height:54px;margin-bottom:16px}
footer p{font-size:14px;color:#9fb3c8;max-width:300px}
footer h5{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
footer ul{list-style:none;display:grid;gap:10px}
footer ul a{font-size:14px;color:#9fb3c8;transition:.2s}
footer ul a:hover{color:var(--orange)}
.foot-uni{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:12px 14px;margin-top:6px}
.foot-uni img{height:42px;background:#fff;border-radius:8px;padding:5px}
.foot-uni span{font-size:12px;color:#9fb3c8}
.foot-bottom{text-align:center;padding-top:22px;font-size:13px;color:#8198af}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media(max-width:980px){
  .hero .grid,.split .grid,.contact .grid{grid-template-columns:1fr;gap:34px}
  .split.rev .media{order:0}
  .cards{grid-template-columns:1fr 1fr}
  .stats .grid,.steps{grid-template-columns:1fr 1fr}
  .train-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  section{padding:60px 0}
  .topbar .meta{display:none}
  .nav ul{position:fixed;inset:74px 0 auto 0;background:#fff;flex-direction:column;padding:24px;gap:18px;box-shadow:var(--shadow);transform:translateY(-130%);transition:.35s;border-bottom:1px solid var(--line)}
  .nav ul.open{transform:none}
  .nav .btn{display:none}
  .nav-toggle{display:flex}
  .cards,.stats .grid,.row2,.steps,.foot-grid{grid-template-columns:1fr}
  .stats .grid{transform:translateY(-30px)}
}