:root{
  --bg:#0b0f1a;
  --card:#121828;
  --muted:#8892a6;
  --text:#e6eefc;
  --accent:#60a5fa;
  --accent-2:#22d3ee;
  --danger:#ef4444;
  --ok:#10b981;
  --shadow:0 20px 40px rgba(0,0,0,.35);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji', 'Segoe UI Emoji';
  background: radial-gradient(1200px 600px at 20% -20%, rgba(34,211,238,.12), transparent 60%),
              radial-gradient(1200px 600px at 100% 0%, rgba(96,165,250,.12), transparent 60%),
              var(--bg);
  color:var(--text);
  line-height:1.6;
}

.container{max-width:1140px;margin:0 auto;padding:24px}

nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter: blur(8px);
  background: rgba(10,14,25,.7);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-inner{display:flex;align-items:center;gap:24px;justify-content:space-between;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.3px}
.logo-badge{
  width:34px;height:34px;border-radius:10px;
  background: linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow: var(--shadow);
}
nav a{color:var(--text);text-decoration:none;opacity:.85}
nav a:hover{opacity:1}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:10px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  padding:12px 18px;font-weight:600;text-decoration:none;color:var(--text);
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.04));
  box-shadow: var(--shadow);
  transition:.2s transform,.2s box-shadow,.2s opacity;
  cursor:pointer;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color:#04101e;border-color:transparent;
}
.btn-ghost{background:transparent}

.hero{
  padding:88px 0 40px 0;
  display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center;
}
.hero h1{
  font-size: clamp(28px, 5vw, 56px);
  line-height:1.1;margin:0 0 16px 0;
}
.hero p{font-size: clamp(15px, 2vw, 19px);color:var(--muted);margin:0 0 24px}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px}

.card{
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.08);
  border-radius:18px;padding:22px;
  box-shadow: var(--shadow);
}

.badge{font-size:12px;padding:6px 10px;border-radius:999px;border:1px solid rgba(255,255,255,.14);opacity:.9}

.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.section{padding:48px 0}
.section h2{font-size: clamp(22px, 4vw, 36px);margin:0 0 12px}
.section p.lead{color:var(--muted);margin-top:0}

.kpi{display:flex;gap:18px;align-items:center}
.kpi .num{font-size:28px;font-weight:800}

.feature{display:flex;gap:14px}
.feature .icon{font-weight:900}

.faq details{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px}
.faq summary{cursor:pointer;font-weight:700}

.pricing{display:grid;grid-template-columns:1fr .9fr;gap:18px}
.price-box .price{font-size:42px;font-weight:900}

footer{border-top:1px solid rgba(255,255,255,.08);margin-top:48px;background:rgba(255,255,255,.02)}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:22px}
footer a{color:var(--muted);text-decoration:none}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.06);padding-top:16px;color:var(--muted)}

.testi{display:flex;gap:16px}
.testi img{width:52px;height:52px;border-radius:50%}

.input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.02);color:var(--text)}
.notice{font-size:13px;color:var(--muted)}

/* Tablet uyumu */
@media (max-width: 960px){
  .hero{grid-template-columns:1fr;padding:64px 16px}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .pricing{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr 1fr}
}

/* Telefon uyumu */
@media (max-width: 600px){
  /* Menü */
  .nav-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .nav-inner > div:last-child {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }
  nav a {
    display: block;
    width: 100%;
    padding: 8px 0;
  }

  /* Hero */
  .hero {padding:40px 12px}
  .hero h1 {font-size:24px}
  .hero p {font-size:14px}
  .hero .cta {flex-direction:column;align-items:stretch}

  /* Grid ve kartlar */
  .card {padding:18px}
  .grid-3, .grid-2 {grid-template-columns:1fr}

  /* Footer */
  footer .cols{grid-template-columns:1fr;gap:16px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
}

/* Çok küçük telefonlar */
@media (max-width: 400px){
  .btn{padding:10px 14px;font-size:14px}
  .price-box .price{font-size:28px}
  .input{font-size:14px}
}