:root{
  --brand:#0b2a7a;
  --brand-dark:#081d54;
  --accent:#1fb6ff;
  --accent2:#00bcd4;
  --quote:#16c1ff;
  --orange:#ff8c00;

  --bg:#0b2a7a;
  --text:#111827;
  --muted:#6b7280;
  --surface:#fff;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html, body{
  width:100%;
  max-width:100%;
  overflow-x:hidden;
}

img{ max-width:100%; height:auto; display:block; }

body{
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container{
  width:min(1200px, 92%);
  margin:0 auto;
}

/* ================= TOPBAR ================= */
.topbar{
  background: var(--brand-dark);
  color:#fff;
  font-size:14px;
}
.topbar-inner{
  display:flex;
  gap:24px;
  align-items:center;
  padding:10px 0;
  flex-wrap:wrap;
}
.topbar-item{
  display:flex;
  align-items:center;
  gap:8px;
}
.topbar a{ color:#fff; text-decoration:none; }

/* ================= HEADER ================= */
.header{
  background:#fff;
  border-bottom:1px solid rgba(0,0,0,.06);
  position:sticky;
  top:0;
  z-index:9999;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 0;
  position:relative;
}
.logo{ height:58px; }

.nav{
  display:flex;
  gap:18px;
  align-items:center;
}
.nav-link{
  text-decoration:none;
  color:#111;
  font-weight:800;
  font-size:13px;
  padding:8px 10px;
  border-radius:10px;
}
.nav-link:hover{ background:rgba(11,42,122,.08); color:var(--brand); }

.nav-toggle{
  display:none;
  border:none;
  background:rgba(0,0,0,.06);
  width:44px; height:44px;
  border-radius:12px;
  cursor:pointer;
  font-size:20px;
}

/* ================= HERO ================= */
.hero{ position:relative; padding-bottom:40px; }

.hero-shell{
  width:100%;
  height:620px;
  position:relative;
  overflow:hidden;
  background:#000;
}

.hero-track{
  height:100%;
  display:flex;
  transition:transform .6s ease;
}

.hero-slide{ min-width:100%; height:100%; }

.hero-slide img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
}

.hero-overlay{
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,.25), rgba(0,0,0,.45));
}

.hero-content{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  color:#fff;
  z-index:2;
}

.hero-content h1{
  font-size: clamp(34px, 4.2vw, 56px);
  font-weight:900;
  text-shadow:0 18px 40px rgba(0,0,0,.45);
  margin-bottom:18px;
}

.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  justify-content:center;
}

.btn{
  padding:11px 16px;
  border-radius:4px;
  text-decoration:none;
  font-weight:900;
  font-size:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}

.btn.ghost{
  background: rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.35);
  color:#fff;
}
.btn.primary{
  background: var(--quote);
  color:#fff;
}

/* ================= CIRCLES (DESKTOP/TABLET) ================= */
.circles-wrap{
  margin-top:-95px;
  position:relative;
  z-index:5;
}

.circles{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:26px;
}

.circle-item{
  position:relative;
  background:#fff;
  border-radius:14px;
  box-shadow:0 18px 50px rgba(0,0,0,.18);
  text-align:center;
  padding:155px 22px 26px;
  overflow:visible;
}

.circle-item > *{
  position:relative;
  z-index:2;
}

.circle-img{
  position:absolute;
  top:-85px;
  left:50%;
  transform: translateX(-50%);
  width:230px;
  height:230px;
  border-radius:999px;
  overflow:hidden;
  border:12px solid #fff;
  background:#eee;
  z-index:1;
  pointer-events:none;
}

.circle-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  transform:scale(1.55);
}

.circles .circle-item:nth-child(3) .circle-img img{
  transform:scale(1.65);
  object-position: 50% 40%;
}

.circle-item h3{
  font-size:14px;
  font-weight:900;
  color:var(--brand);
  margin-bottom:10px;
}

.circle-item p{
  font-size:13px;
  color:var(--muted);
  line-height:1.45;
  margin-bottom:10px;
}

.card-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  font-size:12px;
  font-weight:900;
  color:var(--quote);
  text-decoration:none;

  margin-top:12px;
  padding:10px 14px;
  border-radius:12px;

  background: rgba(31,182,255,.14);
  border: 1px solid rgba(31,182,255,.45);
  line-height:1;
}
.card-cta:hover{ background: rgba(31,182,255,.22); }

/* ================= BANNER ================= */
.banner-full{
  position:relative;
  width:100%;
  height:280px;
  margin:30px 0 0;
  overflow:hidden;
}
.banner-full img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center 35%;
}
.banner-overlay{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,.35);
}
.banner-text{
  position:absolute;
  left:50%;
  top:50%;
  transform: translate(-50%, -50%);
  text-align:center;
  color:#fff;
  width:min(980px,92%);
}
.banner-text h2{
  font-size: clamp(20px,3vw,34px);
  font-weight:900;
  text-shadow:0 8px 20px rgba(0,0,0,.6);
}
.banner-text p{ font-size:14px; }

/* ================= FOOTER ================= */
.footer-modern{
  background:#0d0d0d;
  color:#ccc;
  text-align:center;
  padding:80px 20px 40px;
}
.footer-big-logo{ width:180px; margin:0 auto 20px; }
.footer-desc{ font-size:16px; margin-bottom:30px; color:#aaa; }
.footer-contact-modern h4{ color:#fff; margin-top:20px; }
.footer-contact-modern p{
  margin:3px 0;
  color:#ff8c00;
  font-weight:700;
}

/* ================= RESPONSIVE ================= */
@media (max-width:1000px){
  .hero-shell{ height:520px; }
  .circles{ grid-template-columns: repeat(2,1fr); }
}

/* ===== MOBIL (TEK BLOK) ===== */
@media (max-width:768px){

  .nav-toggle{ display:flex; }

  .nav{
    position:absolute;
    top:72px;
    left:0; right:0;
    background:#fff;
    border-radius:14px;
    padding:10px;
    display:none;
    flex-direction:column;
    gap:8px;
  }
  .nav.open,.nav.is-open{ display:flex; }

  .hero-shell{ height:520px; }

  /* circles: alt alta + çakışma olmasın */
  .circles-wrap{ margin-top:-45px; }

  .circles{
    grid-template-columns:1fr;
    gap: 40px;            /* ✅ INCELE ile alt yuvarlak arasını açar */
  }

  .circle-item{
    padding: 122px 14px 18px; /* kart biraz küçük ama INCELE rahat */
    border-radius: 12px;
  }

  .circle-img{
    width:150px;
    height:150px;
    top:-60px;                /* ✅ yuvarlak biraz yukarıda kalsın */
    border-width:10px;
  }

  .circle-item h3{ font-size:13px; margin-bottom:8px; }
  .circle-item p{ font-size:12.5px; margin-bottom:10px; }

  .card-cta{
    margin-top:14px;          /* ✅ INCELE ile üst eleman arası */
    padding:10px 14px;
  }

  /* banner mobil görsel */
  .banner-full{ height:170px; }
  .banner-full img{
    content:url("img/banner-mobil.png");
    object-position:center;
  }
  .banner-text h2{ font-size:16px; }
  .banner-text p{ font-size:12px; }
}