:root{
  --max: 1120px;
  --pad: 18px;

  /* ASER DEV Dark (daha temiz) */
  --bg: #0b1220;
  --panel: #0f1a2e;

  --card: rgba(255,255,255,.04);
  --card-2: rgba(255,255,255,.06);

  --border: rgba(226,232,240,.10);
  --border-2: rgba(56,189,248,.22);

  --text: #eaf0fb;
  --muted: rgba(234,240,251,.72);

  --primary: #2563eb;
  --accent: #38bdf8;

  --radius: 18px;
  --shadow: 0 18px 60px rgba(0,0,0,.35);
  --shadow-soft: 0 10px 26px rgba(0,0,0,.22);

  --ring: 0 0 0 4px rgba(56,189,248,.14);
}

*{ box-sizing: border-box; }
html, body{ height:100%; }

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);

  /* Daha sakin arka plan: az glow, çok düzen */
  background:
    radial-gradient(900px 520px at 18% -12%, rgba(56,189,248,.16), transparent 60%),
    radial-gradient(900px 520px at 85% -10%, rgba(37,99,235,.14), transparent 62%),
    linear-gradient(180deg, var(--bg), #070c16);
}

a{ color: var(--accent); text-decoration:none; }
a:hover{ filter: brightness(1.08); }

.container{ max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

/* Full-width header (çok kritik) */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,18,32,.68);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226,232,240,.06);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
}

.brand{ font-weight: 800; letter-spacing: .2px; }
.brand a{ color: var(--text); }

.nav nav a{
  color: rgba(234,240,251,.78);
  margin-right: 14px;
  font-weight: 600;
}
.nav nav a:hover{ color: var(--text); }

/* Hero: daha az “şişkin” */
.hero{
  padding: 48px 0;
  border-bottom: 1px solid rgba(226,232,240,.06);
  background: linear-gradient(180deg, rgba(56,189,248,.07), rgba(37,99,235,.05));
}

.grid{ display:grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }

/* Kartlar: daha düz + daha modern hover */
.card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  background: linear-gradient(180deg, var(--card-2), var(--card));
  box-shadow: var(--shadow-soft);
  transition: transform .14s ease, border-color .14s ease, box-shadow .14s ease;
}

.card:hover{
  transform: translateY(-2px);
  border-color: var(--border-2);
  box-shadow: var(--shadow);
}

/* Tipografi (daha dengeli) */
h1{
  margin: 10px 0 8px;
  font-size: 36px;
  line-height: 1.12;
  letter-spacing: -0.6px;
}
h2{
  margin: 0 0 12px;
  font-size: 22px;
  letter-spacing: -0.25px;
}
h3{
  margin: 0 0 10px;
  font-size: 18px;
  letter-spacing: -0.15px;
}

.muted{ color: var(--muted); }

.list{ margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.list li{ margin: 6px 0; }

/* Badge: daha “ürün” görünümü */
.badge{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid rgba(56,189,248,.22);
  border-radius: 999px;
  font-size: 12px;
  color: rgba(234,240,251,.86);
  background: rgba(56,189,248,.08);
}

/* Butonlar: sade, modern */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(226,232,240,.14);
  background: rgba(255,255,255,.02);
  color: rgba(234,240,251,.84);
  font-weight: 700;
  cursor: pointer;
  transition: transform .10s ease, border-color .14s ease, background .14s ease, box-shadow .14s ease;
}

.btn:hover{
  transform: translateY(-1px);
  border-color: rgba(56,189,248,.28);
  background: rgba(56,189,248,.08);
  box-shadow: 0 12px 28px rgba(0,0,0,.20);
}

.btn.primary{
  border-color: transparent;
  color: #07101f;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  box-shadow: 0 14px 38px rgba(37,99,235,.22);
}

.btn.primary:hover{
  box-shadow: 0 18px 52px rgba(56,189,248,.16);
}

/* Formlar */
.form{ display:grid; gap: 12px; }
.row{ display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }

input, textarea, select{
  width:100%;
  padding: 11px 12px;
  border-radius: 12px;
  border: 1px solid rgba(226,232,240,.14);
  font: inherit;
  color: var(--text);
  background: rgba(255,255,255,.03);
  outline: none;
}
input::placeholder, textarea::placeholder{ color: rgba(234,240,251,.52); }
input:focus, textarea:focus, select:focus{
  border-color: rgba(56,189,248,.40);
  box-shadow: var(--ring);
}

/* Tablo */
.table{ width:100%; border-collapse: collapse; }
.table th, .table td{
  padding: 12px 10px;
  border-bottom: 1px solid rgba(226,232,240,.08);
  text-align:left;
  vertical-align: top;
}
.table th{
  color: rgba(234,240,251,.78);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.table td{ color: rgba(234,240,251,.86); }

/* KPI */
.kpi{ display:flex; gap: 12px; flex-wrap: wrap; }
.kpi .card{ min-width: 190px; }

/* Footer */
.footer{
  padding: 26px 0;
  border-top: 1px solid rgba(226,232,240,.06);
  margin-top: 44px;
}

/* Responsive */
@media (max-width: 980px){
  h1{ font-size: 32px; }
}
@media (max-width: 820px){
  .row{ grid-template-columns: 1fr; }
}