:root{
  --bg:#05060a; --panel:#0b0e16; --panel2:#11141d;
  --text:#eef1f7; --muted:#8a93a6;
  --accent:#6ee7ff; --accent-2:#8b5cf6; --accent-3:#00ffb2;
  --gradient:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 55%,var(--accent-3) 100%);
  --line:rgba(255,255,255,.08); --line-2:rgba(255,255,255,.12);
  --glass:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01));
  --font:'Inter','Segoe UI',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  background:
    radial-gradient(60% 50% at 80% 0%,rgba(139,92,246,.25),transparent 60%),
    radial-gradient(50% 40% at 10% 8%,rgba(110,231,255,.18),transparent 60%),
    radial-gradient(45% 40% at 50% 100%,rgba(0,255,178,.12),transparent 60%),
    var(--bg);
  background-attachment:fixed;
}
/* ince ızgara dokusu */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at 50% 0,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0,#000 30%,transparent 80%);
}
body>*{position:relative;z-index:1}
a{color:inherit}
.container{width:min(1200px,92%);margin:0 auto}
.grad{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}

/* navbar */
.nav{position:sticky;top:0;z-index:50;background:rgba(5,6,10,.55);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 0}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.22rem;text-decoration:none;color:var(--text);letter-spacing:-.01em}
.brand .dot{width:30px;height:30px;border-radius:9px;background:var(--gradient);display:inline-flex;align-items:center;justify-content:center;color:#05060a;font-size:.95rem;font-weight:800;box-shadow:0 6px 20px rgba(110,231,255,.35)}
.brand span{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-link{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--muted);font-weight:600;font-size:.92rem;transition:color .2s}
.nav-link:hover{color:var(--accent)}

/* hero */
.hero{text-align:center;padding:78px 0 38px}
.pill{display:inline-block;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--accent);font-weight:600;font-size:.82rem;padding:8px 18px;border-radius:999px;margin-bottom:22px;letter-spacing:.3px}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;line-height:1.1;letter-spacing:-.03em;margin-bottom:18px}
.hero p{color:var(--muted);font-size:clamp(1rem,2vw,1.15rem);max-width:640px;margin:0 auto}
.crumbs{display:flex;align-items:center;gap:8px;justify-content:center;margin-top:22px;font-size:.9rem;color:var(--muted)}
.crumbs a{color:var(--accent);text-decoration:none;font-weight:600}
.crumbs a:hover{text-decoration:underline}

/* sektör ızgarası */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:42px 0 90px}
.s-card{position:relative;background:var(--glass);border:1px solid var(--line);border-radius:20px;padding:30px 26px;text-decoration:none;color:inherit;overflow:hidden;backdrop-filter:blur(6px);transition:transform .28s,box-shadow .28s,border-color .28s}
.s-card::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--gradient);opacity:0;transition:opacity .28s}
.s-card:hover{transform:translateY(-6px);border-color:rgba(110,231,255,.4);box-shadow:0 26px 60px rgba(0,0,0,.55),0 0 0 1px rgba(110,231,255,.12)}
.s-card:hover::before{opacity:1}
.s-ico{display:inline-flex;align-items:center;justify-content:center;width:62px;height:62px;border-radius:18px;background:linear-gradient(120deg,rgba(110,231,255,.12),rgba(139,92,246,.14));border:1px solid var(--line);font-size:1.9rem;margin-bottom:18px}
.s-card h3{font-size:1.26rem;font-weight:800;line-height:1.25;margin-bottom:10px;letter-spacing:-.01em}
.s-card .meta{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.s-card .count{color:var(--muted);font-size:.88rem;font-weight:600}
.s-card .go{font-weight:800;font-size:.92rem;display:inline-flex;align-items:center;gap:6px;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;transition:gap .2s}
.s-card:hover .go{gap:11px}

/* kategori başlığı */
.cat-head{display:flex;align-items:center;gap:18px;padding:6px 0 4px}
.cat-head .s-ico{margin-bottom:0;flex-shrink:0}
.cat-head h1{font-size:clamp(1.7rem,4vw,2.7rem);font-weight:800;letter-spacing:-.02em}

/* tasarım kartları (önizlemeli) */
.d-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;padding:34px 0 90px}
.d-card{position:relative;background:var(--glass);border:1px solid var(--line);border-radius:20px;overflow:hidden;text-decoration:none;color:inherit;backdrop-filter:blur(6px);transition:transform .28s,box-shadow .28s,border-color .28s}
.d-card:hover{transform:translateY(-6px);border-color:rgba(110,231,255,.4);box-shadow:0 26px 60px rgba(0,0,0,.55)}
.preview{position:relative;height:260px;overflow:hidden;background:#0a0c12;border-bottom:1px solid var(--line)}
.preview iframe{position:absolute;top:0;left:0;width:285%;height:285%;border:0;transform:scale(.3508);transform-origin:0 0;pointer-events:none}
.preview .shade{position:absolute;inset:0;background:linear-gradient(180deg,transparent 70%,rgba(5,6,10,.35));z-index:2}
.d-body{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px 22px}
.d-body h3{font-size:1.15rem;font-weight:800}
.d-body .tag{display:block;color:var(--muted);font-size:.84rem;font-weight:500;margin-top:2px}
.open-btn{flex-shrink:0;background:var(--gradient);color:#05060a;font-weight:800;font-size:.85rem;padding:10px 16px;border-radius:999px;white-space:nowrap;box-shadow:0 8px 22px rgba(110,231,255,.25)}

/* footer */
.foot{border-top:1px solid var(--line);background:rgba(11,14,22,.6);backdrop-filter:blur(10px)}
.foot-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:30px 0}
.foot p{color:var(--muted);font-size:.88rem}
.foot a{color:var(--accent);text-decoration:none;font-weight:700}

/* animasyon */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .5s,transform .5s}
.reveal.in{opacity:1;transform:none}

@media(max-width:860px){
  .grid,.d-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .grid,.d-grid{grid-template-columns:1fr}
  .preview{height:230px}
}