:root{
  --bg:#0d1236; --bg2:#151b4d; --panel:#141a4a; --line:rgba(255,255,255,.12);
  --text:#f3f4ff; --muted:#aab0e0; --accent:#ffb020; --accent2:#ff7a1a; --brand:#7a6cff;
  --radius:20px;
}
@media (prefers-color-scheme:light){
  :root{--bg:#f4f5ff;--bg2:#e9ebff;--panel:#fff;--line:rgba(20,26,74,.12);--text:#141a4a;--muted:#5a6199;}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.65 -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","Segoe UI",Roboto,sans-serif;
  color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:-1;
  background:radial-gradient(900px 500px at 15% -10%,rgba(122,108,255,.35),transparent 60%),
             radial-gradient(700px 500px at 100% 10%,rgba(255,176,32,.16),transparent 60%)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:860px;margin:0 auto;padding:0 20px}
header.site{position:sticky;top:0;z-index:10;backdrop-filter:saturate(1.4) blur(14px);
  background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;letter-spacing:.2px}
.brand img{width:32px;height:32px;border-radius:8px}
.brand:hover{text-decoration:none}
nav{margin-left:auto;display:flex;align-items:center;gap:6px}
nav a.link{color:var(--muted);padding:8px 12px;border-radius:10px;font-weight:600;font-size:15px}
nav a.link:hover,nav a.link.on{color:var(--text);background:var(--line);text-decoration:none}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;margin-left:6px}
.lang button{border:0;background:transparent;color:var(--muted);font:700 13px/1 inherit;padding:7px 12px;border-radius:999px;cursor:pointer}
.lang button[aria-pressed=true]{background:linear-gradient(180deg,var(--accent),var(--accent2));color:#241400}
.hero{padding:72px 0 40px;text-align:center}
.hero img.icon{width:128px;height:128px;border-radius:29px;box-shadow:0 18px 50px rgba(0,0,0,.4),0 0 0 1px var(--line)}
.hero h1{font-size:clamp(34px,6vw,54px);line-height:1.1;margin:26px 0 12px;letter-spacing:-.02em}
.hero p.lead{font-size:clamp(17px,2.4vw,20px);color:var(--muted);max-width:560px;margin:0 auto 28px}
.btn{display:inline-block;padding:13px 22px;border-radius:14px;font-weight:800;color:#241400;
  background:linear-gradient(180deg,var(--accent),var(--accent2));box-shadow:0 6px 0 rgba(0,0,0,.25)}
.btn:hover{text-decoration:none;filter:brightness(1.05)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line);box-shadow:none}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin:24px 0 64px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:15px}
.doc{padding:48px 0 80px}
.doc h1{font-size:clamp(30px,5vw,42px);line-height:1.15;margin:0 0 8px;letter-spacing:-.02em}
.doc .meta{color:var(--muted);font-size:14px;margin-bottom:28px}
.doc h2{font-size:22px;margin:38px 0 8px;padding-top:6px}
.doc p,.doc li{color:var(--text);opacity:.92}
.doc ul{padding-left:22px}
.doc li{margin:6px 0}
.note{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:14px;padding:16px 18px;margin:22px 0}
.note p{margin:0}
table{width:100%;border-collapse:collapse;margin:16px 0;background:var(--panel);
  border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:15px}
th,td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em}
tr:last-child td{border-bottom:0}
details{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:4px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--accent);font-size:20px;line-height:1}
details[open] summary::after{content:"–"}
details p{margin:0 0 16px;color:var(--muted)}
.contact{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
footer.site{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);font-size:14px}
footer.site .wrap{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
footer.site a{color:var(--muted)}
[data-l]{display:none}
html[lang=en] [data-l=en],html[lang=tr] [data-l=tr]{display:revert}
html[lang=en] span[data-l=en],html[lang=tr] span[data-l=tr]{display:inline}
@media(max-width:560px){nav a.link{padding:8px 8px;font-size:14px}.brand span{display:none}}