:root{
  --bg:#0b1220;
  --card:#0f1a2e;
  --muted:#a8b3cf;
  --text:#eef2ff;
  --brand:#7c3aed;
  --brand2:#22c55e;
  --line:rgba(255,255,255,.08);
  --shadow: 0 12px 32px rgba(0,0,0,.35);
  --radius:18px;
  --max:1180px;
  --focus: 0 0 0 4px rgba(124,58,237,.35);
  color-scheme: dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;background:radial-gradient(1200px 600px at 20% 0%, rgba(124,58,237,.25), transparent 60%),radial-gradient(1000px 600px at 80% 20%, rgba(34,197,94,.18), transparent 55%),var(--bg);color:var(--text);line-height:1.55}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 18px}

/* Topbar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(11,18,32,.72);backdrop-filter: blur(14px);border-bottom:1px solid var(--line)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand__logo{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#0ea5e9);box-shadow:0 10px 20px rgba(124,58,237,.25)}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{font-weight:800;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand__tag{font-size:12px;color:var(--muted)}

.nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav a{padding:10px 12px;border-radius:12px;color:var(--muted);font-weight:600}
.nav a:hover{background:rgba(255,255,255,.06);color:var(--text)}
.nav a[aria-current="page"]{background:rgba(124,58,237,.18);color:var(--text);border:1px solid rgba(124,58,237,.35)}

.cta{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);padding:10px 14px;border-radius:14px;font-weight:700;cursor:pointer;transition:.15s transform,.15s background,.15s border}
.btn:hover{transform:translateY(-1px);background:rgba(255,255,255,.06)}
.btn:focus{outline:none;box-shadow:var(--focus)}
.btn--brand{background:linear-gradient(135deg,var(--brand),#4f46e5);border-color:rgba(124,58,237,.45)}
.btn--brand:hover{background:linear-gradient(135deg,#8b5cf6,#4f46e5)}
.btn--ghost{background:transparent}

.hamburger{display:none}

/* Hero */
.hero{padding:46px 0 18px}
.hero__grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
.hero__card{border:1px solid var(--line);background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.hero__content{padding:28px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;border:1px solid rgba(34,197,94,.35);background:rgba(34,197,94,.12);color:#b7f7cf;font-weight:800;font-size:12px}
.h1{font-size:40px;line-height:1.1;margin:14px 0 10px;font-weight:900;letter-spacing:-.4px}
.lead{color:var(--muted);font-size:16px;margin:0 0 16px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.kpi{padding:12px;border-radius:16px;background:rgba(15,26,46,.55);border:1px solid var(--line)}
.kpi b{display:block;font-size:18px}
.kpi span{color:var(--muted);font-size:12px}

.hero__media{position:relative;min-height:260px}
.media__bg{position:absolute;inset:0;background:radial-gradient(500px 280px at 30% 30%, rgba(124,58,237,.35), transparent 60%),url('images/hero.jpg');background-size:cover;background-position:center;filter:saturate(1.05)}
.media__overlay{position:absolute;inset:0;background:linear-gradient(180deg, rgba(11,18,32,.1), rgba(11,18,32,.85))}
.media__panel{position:absolute;left:16px;right:16px;bottom:16px;border:1px solid var(--line);border-radius:16px;background:rgba(11,18,32,.65);backdrop-filter:blur(10px);padding:14px}
.media__panel p{margin:0;color:var(--muted);font-size:13px}

/* Sections */
.section{padding:26px 0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:14px}
.section__title{margin:0;font-size:22px;font-weight:900}
.section__desc{margin:0;color:var(--muted);font-size:13px}

.grid{display:grid;gap:14px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.card{border:1px solid var(--line);background:rgba(15,26,46,.55);border-radius:var(--radius);box-shadow:0 10px 22px rgba(0,0,0,.22);overflow:hidden}
.card__p{padding:16px}
.card__p h3{margin:0 0 6px;font-size:16px}
.card__p p{margin:0;color:var(--muted);font-size:13px}
.icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:rgba(124,58,237,.14);border:1px solid rgba(124,58,237,.25);margin-bottom:10px}

/* Product gallery cards (keeps images unchanged) */
.product{display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:center;padding:14px}
.product img{width:120px;height:92px;object-fit:cover;border-radius:14px;border:1px solid var(--line);background:#0a0f1b}
.product h3{margin:0;font-size:15px}
.product p{margin:6px 0 0;color:var(--muted);font-size:13px}

/* Footer */
.footer{margin-top:26px;border-top:1px solid var(--line);background:rgba(11,18,32,.7)}
.footer__grid{display:grid;grid-template-columns:1.3fr .7fr;gap:16px;padding:22px 0}
.small{color:var(--muted);font-size:12px}

/* Mobile */
@media (max-width: 920px){
  .hero__grid{grid-template-columns:1fr}
  .kpis{grid-template-columns:repeat(3,1fr)}
}
@media (max-width: 720px){
  .nav{display:none;position:absolute;left:18px;right:18px;top:64px;background:rgba(11,18,32,.92);border:1px solid var(--line);border-radius:18px;padding:10px}
  .nav a{display:block}
  .hamburger{display:inline-flex}
  .grid--3{grid-template-columns:1fr}
  .grid--2{grid-template-columns:1fr}
  .kpis{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .h1{font-size:32px}
}

/* Accessibility helpers */
.skip{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip:focus{left:18px;top:18px;width:auto;height:auto;padding:10px 12px;background:#111b32;border-radius:12px;z-index:9999;box-shadow:var(--shadow)}


/* --- AYDEMİR PERDE SİSTEMLERİ: Override (2025/2026 modern dark) --- */
:root{
  --bg:#0b0f16;
  --card:#0f1623;
  --text:#f3f4f6;
  --muted:rgba(243,244,246,.72);
  --brand:#a78bfa;
  --brand2:#22c55e;
  --line:rgba(255,255,255,.10);
  --shadow: 0 18px 44px rgba(0,0,0,.45);
}

/* Top header strip (mavimsi şerit) tamamen kapat */
.topbar,.top-bar,.top-header,.top-strip,.header-top{display:none !important;height:0 !important;}

/* Logo tutarlılığı */
.logo-area img{height:220px;width:auto;object-fit:contain;}
@media (max-width:768px){.logo-area img{height:160px;}}

/* Daha profesyonel focus / erişilebilirlik */
:focus-visible{outline: none; box-shadow: 0 0 0 4px rgba(167,139,250,.35); border-radius: 10px;}