:root{
  --bg:#0b1020;
  --panel:#0f1730;
  --text:#e9eefc;
  --muted:#aab4d6;
  --line:rgba(255,255,255,.10);
  --accent:#3aa0ff;
  --accent2:#ffd36a;
  --radius:16px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 20% 10%, rgba(58,160,255,.18), transparent 55%),
    radial-gradient(900px 500px at 80% 20%, rgba(255,211,106,.14), transparent 60%),
    var(--bg);
}
a{color:inherit;text-decoration:none}
.container{width:min(1100px, 92%); margin:0 auto}

.site-header{
  position:sticky; top:0; z-index:10;
  background:rgba(11,16,32,.7);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header-row{
  display:flex; align-items:center; justify-content:space-between;
  gap:14px;
  padding:12px 0;
}
.brand{display:flex; gap:12px; align-items:center}
.brand-logo{
  width:320px; height:120px; border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  object-fit:cover;
}
.brand-text{display:flex; flex-direction:column; line-height:1}
.brand-mark{font-weight:900; font-size:20px; letter-spacing:.5px}
.brand-sub{color:var(--accent2); font-weight:650; font-size:13px}

.nav{display:flex; gap:10px; flex-wrap:wrap}
.nav a{
  padding:8px 10px;
  border-radius:10px;
  color:var(--muted);
}
.nav a:hover{
  color:var(--text);
  background:rgba(255,255,255,.06);
}

.lang{display:flex; gap:8px}
.lang a{
  padding:7px 10px;
  border-radius:10px;
  border:1px solid var(--line);
  color:var(--muted);
  background:rgba(255,255,255,.03);
}
.lang a.active, .lang a:hover{
  color:var(--text);
  border-color:rgba(58,160,255,.45);
  background:rgba(58,160,255,.14);
}

.site-main{padding:22px 0 50px}
.section{padding-top:62px; margin-top:-62px;} /* sticky header offset */

.hero{
  display:grid;
  grid-template-columns: 1.4fr .9fr;
  gap:16px;
  align-items:stretch;
  margin-top:8px;
}
.hero-content{
  padding:22px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  border-radius:var(--radius);
}
.hero h1{margin:0 0 10px; font-size:36px; line-height:1.15}
.hero p{margin:0 0 18px; color:var(--muted); max-width:65ch}
.hero-actions{display:flex; gap:10px; flex-wrap:wrap}

.hero-card{
  padding:22px;
  border:1px solid var(--line);
  background:rgba(15,23,48,.65);
  border-radius:var(--radius);
}

.page-head{
  margin:16px 0 14px;
  padding:18px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  border-radius:var(--radius);
}
.page-head h2{margin:0 0 8px}
.page-head p{margin:0; color:var(--muted)}

.card{
  padding:18px;
  border:1px solid var(--line);
  background:rgba(15,23,48,.55);
  border-radius:var(--radius);
}
.grid3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.grid2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
}
.company h3{margin:0 0 6px}

.list{margin:10px 0 0; padding-left:18px; color:var(--muted)}
.muted{color:var(--muted)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid rgba(58,160,255,.45);
  background: rgba(58,160,255,.16);
  color:var(--text);
  font-weight:700;
}
.btn:hover{background: rgba(58,160,255,.24)}
.btn-ghost{
  border:1px solid var(--line);
  background: rgba(255,255,255,.06);
}
.btn-ghost:hover{background: rgba(255,255,255,.10)}

.form{display:grid; gap:10px; margin-top:10px}
label{display:grid; gap:6px; color:var(--muted); font-size:14px}
input, textarea{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  color:var(--text);
  outline:none;
}
input:focus, textarea:focus{border-color: rgba(58,160,255,.55)}

.alert{
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  margin-bottom:10px;
}
.alert.success{border-color: rgba(90, 220, 140, .45); background: rgba(90, 220, 140, .10)}
.alert.error{border-color: rgba(255, 90, 90, .45); background: rgba(255, 90, 90, .10)}

.site-footer{
  border-top:1px solid var(--line);
  padding:18px 0;
  background:rgba(11,16,32,.7);
}
.footer-row{display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap}

@media (max-width: 900px){
  .hero{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .nav{display:none} /* istersek mobil menü ekleriz */
}