:root{
  /* Brand */
  --brand: #0ea5e9;           /* sky-500 */
  --brand-2: #14b8a6;         /* teal-500 */
  --brand-dark: #0284c7;      /* sky-600 */

  /* Surfaces */
  --bg: #f6f8fc;
  --card: #ffffff;
  --card-2: #f9fbff;
  --border: rgba(15, 23, 42, .10);

  /* Text */
  --text: #0f172a;            /* slate-900 */
  --text-2: #1e293b;          /* slate-800 */
  --muted: #475569;           /* slate-600 */
  --muted-2: #64748b;         /* slate-500 */

  /* Effects */
  --shadow: 0 10px 30px rgba(2, 8, 23, .08);
  --shadow-sm: 0 6px 16px rgba(2, 8, 23, .06);
  --radius: 18px;

  /* Links */
  --link: #0ea5e9;
  --link-hover: #0284c7;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  background:
    radial-gradient(900px 420px at 15% 5%, rgba(14,165,233,.14), transparent 60%),
    radial-gradient(900px 420px at 90% 0%, rgba(20,184,166,.12), transparent 60%),
    var(--bg);
  color:var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a{ text-decoration:none; color:var(--link); }
a:hover{ color:var(--link-hover); text-decoration:underline; }

.container{max-width:1100px;margin:0 auto;padding:0 16px}

/* Topbar / Nav */
.topbar{
  position:sticky;
  top:0;
  background:rgba(246,247,251,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  z-index:20
}
.nav{display:flex;justify-content:space-between;align-items:center;padding:12px 0}

.brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 20px rgba(14,165,233,.18);
}
.brand:hover{text-decoration:none}

.navlinks{display:flex;gap:10px;color:var(--muted);font-size:14px}
.navlinks a{
  color:var(--muted);
  padding:8px 10px;
  border-radius:12px;
}
.navlinks a:hover{
  background:rgba(15,23,42,.05);
  color:var(--text);
  text-decoration:none;
}

/* Hero */
.hero{padding:34px 0 10px}
.hero-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:14px}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}}

.hero-card{
  background:linear-gradient(180deg, rgba(255,255,255,1), rgba(255,255,255,.96));
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px
}

h1{
  margin:0 0 10px;
  font-size:34px;
  line-height:1.15;
  letter-spacing:-.2px;
}
.lead{
  margin:0;
  color:var(--muted);
  line-height:1.7;
  font-size:15px;
}

.cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.9);
  box-shadow:0 6px 18px rgba(15,23,42,.06);
  font-weight:900;
  font-size:14px;
  color:var(--text);
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{transform:translateY(-1px); text-decoration:none; box-shadow:var(--shadow-sm)}
.btn.primary{
  border:none;
  color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 22px rgba(14,165,233,.20);
}
.btn.primary:hover{box-shadow:0 14px 28px rgba(14,165,233,.22)}
.btn.outline{
  background:rgba(255,255,255,.75);
}

/* Stats */
.stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat{
  background:linear-gradient(180deg, rgba(255,255,255,1), rgba(255,255,255,.96));
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow-sm);
}
.stat b{display:block;color:var(--text)}
.stat span{color:var(--muted);font-size:13px;line-height:1.6}

/* Section */
.section{padding:18px 0}
.section h2{
  margin:0 0 6px;
  font-size:22px;
  letter-spacing:-.1px;
}
.sub{margin:0 0 14px;color:var(--muted);line-height:1.7}

/* Grid Cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:980px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.grid{grid-template-columns:1fr}}

.card{
  background:linear-gradient(180deg, rgba(255,255,255,1), rgba(255,255,255,.96));
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:10px;
  min-height:170px;
  transition:transform .15s ease, box-shadow .15s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}

.icon{
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg, rgba(14,165,233,.10), rgba(20,184,166,.08));
}
.icon img{max-width:26px;max-height:26px}

.card h3{margin:0;font-size:16px;color:var(--text);letter-spacing:-.1px}
.card p{margin:0;color:var(--muted);line-height:1.65;font-size:13.5px}

.links{margin-top:auto;display:flex;justify-content:space-between;align-items:center}
.link{font-weight:900;color:var(--text)}
.link:hover{color:var(--brand);text-decoration:none}
.muted{color:var(--muted);font-size:13px}
.muted:hover{color:var(--text);text-decoration:none}

/* Two columns / panels */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:900px){.two-col{grid-template-columns:1fr}}

.panel{
  background:linear-gradient(180deg, rgba(255,255,255,1), rgba(255,255,255,.96));
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:16px;
}
.panel h3{margin:0 0 10px;color:var(--text)}

.list{display:flex;flex-direction:column;gap:10px}
.row{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.75);
  transition:background .15s ease, transform .15s ease;
}
.row:hover{background:rgba(15,23,42,.03);transform:translateY(-1px)}
.badge{color:var(--muted);font-size:12px}

/* FAQ */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:900px){.faq{grid-template-columns:1fr}}

details{
  background:linear-gradient(180deg, rgba(255,255,255,1), rgba(255,255,255,.96));
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:14px
}
summary{cursor:pointer;font-weight:900;color:var(--text)}
details p{margin:10px 0 0;color:var(--muted);line-height:1.7}

/* Footer */
.footer{
  margin-top:22px;
  border-top:1px solid var(--border);
  padding:18px 0 24px;
  background:rgba(255,255,255,.90);
}
.footer-row{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center}
.footlinks{display:flex;gap:12px;color:var(--muted);font-size:14px}
.footlinks a{color:var(--muted)}
.footlinks a:hover{color:var(--text);text-decoration:none}
.footnote{margin-top:10px;color:var(--muted);font-size:13px}

/* Detail pages readability */
.detail-content .container{max-width:980px}
.detail-content p, .detail-content li{font-size:15px;line-height:1.8;color:var(--text-2)}
.detail-content h2{font-size:24px;margin-top:22px}
.detail-content h3{font-size:18px;margin-top:18px}
.detail-content hr{
  border:none;height:1px;background:var(--border);margin:18px 0
}
/* -----------------------------
   Topbar / Nav (refined)
------------------------------ */

.topbar{
  position:sticky;
  top:0;
  background:rgba(246,247,251,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  z-index:20;
}

/* Desktop: flex kalsın ama iç boşluk dengeli olsun */
.nav{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:12px 0;
}

/* Logo hizası (sola yapışmasın) */
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:900;
  color:var(--text);
  padding-left:6px; /* ✅ logo çok sola dayanmasın */
}
.brand:hover{ text-decoration:none; }

/* Menü linkleri (desktop) */
.navlinks{
  display:flex;
  gap:10px;
  color:var(--muted);
  font-size:14px;
}
.navlinks a{
  color:var(--muted);
  padding:8px 10px;
  border-radius:12px;
}
.navlinks a:hover{
  background:rgba(15,23,42,.05);
  color:var(--text);
  text-decoration:none;
}

/* -----------------------------
   Mobile Navbar (SVG hamburger)
------------------------------ */

.navtoggle{
  display:none; /* desktop'ta gizli */
  border:1px solid var(--border);
  background:#fff;
  border-radius:16px;
  padding:10px 12px;
  cursor:pointer;
  box-shadow:0 6px 18px rgba(15,23,42,.06);
  line-height:0;
  margin-right:6px; /* ✅ toggle çok sağa dayanmasın */
}

.navicon{
  width:26px;
  height:26px;
  color:var(--text);
}

/* Desktop */
@media (min-width: 901px){
  .navlinks{ display:flex; }
}

/* Mobile */
@media (max-width: 900px){
  .nav{
    position:relative;
  }

  /* hamburger göster */
  .navtoggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
  }

  /* Mobilde menü dropdown */
  .navlinks{
    display:none;
    position:absolute;
    right:8px;      /* ✅ sağ boşluk dengeli */
    top:70px;
    width:min(320px, calc(100vw - 24px)); /* ✅ taşmayı azalt */
    background:var(--card);
    border:1px solid var(--border);
    border-radius:16px;
    box-shadow:var(--shadow);
    padding:10px;
    flex-direction:column;
    gap:6px;
    z-index:50;
  }

  .navlinks.is-open{ display:flex; }

  .navlinks a{
    padding:12px 12px;
    border-radius:12px;
    color:var(--text);
  }

  .navlinks a:hover{
    background:rgba(15,23,42,.05);
  }

  /* brand yazısı taşmasın (istersen kaldır) */
  .brand span{ display:none; }
}