/* Temel Ayarlar */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; color: #333; line-height: 1.6; }
h1, h2, h3, .logo { font-family: 'Montserrat', sans-serif; font-weight: 700; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* Header */
header { background: #fff; padding: 20px 0; box-shadow: 0 2px 10px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
nav { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 24px; color: #f37021; }
.logo span { color: #333; }
nav ul { display: flex; gap: 20px; align-items: center; }
.cta-nav { background: #fff; border: 1px solid #f37021; padding: 8px 20px; border-radius: 5px; color: #f37021; }

/* Hero Section */
.hero { height: 80vh; display: flex; align-items: center; justify-content: center; text-align: center; color: #fff; }
.hero h5 { letter-spacing: 2px; margin-bottom: 10px; }
.hero h1 { font-size: 3rem; margin-bottom: 20px; max-width: 800px; }
.btn-orange { background: #f37021; color: #fff; padding: 15px 30px; border-radius: 5px; display: inline-block; font-weight: bold; }

/* Feature Cards */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: -50px; }
.feature-card { background: #fff; padding: 30px; border-radius: 10px; box-shadow: 0 5px 20px rgba(0,0,0,0.1); text-align: center; }
.feature-card i { font-size: 40px; color: #f37021; margin-bottom: 15px; }
.orange-bg { background: #f37021; color: #fff; }
.orange-bg i { color: #fff; }

/* Image Grid (1. görsel gibi) */
.image-grid{
  display:grid;
  grid-template-columns: 1fr 1fr 1.05fr;
  grid-template-rows: 260px 220px;
  gap: 18px;
  margin: 50px auto;
}

.grid-item{
  position:relative;
  display:block;
  border-radius: 18px;
  overflow:hidden;
  background-size: cover;
  background-position:center;
  transform: translateZ(0);
  transition: transform .25s ease;
}

/* Grid alanları */
.item-a{ grid-area: 1 / 1 / 2 / 3; } /* üst solda, 2 kolon */
.item-b{ grid-area: 1 / 3 / 3 / 4; } /* sağ büyük, 2 satır */
.item-c{ grid-area: 2 / 1 / 3 / 2; } /* alt sol */
.item-d{ grid-area: 2 / 2 / 3 / 3; } /* alt orta */

/* Koyu geçiş + yazılar */
.grid-item::before{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,.75) 100%);
  opacity:.9;
  transition: opacity .25s ease;
}

.overlay{
  position:absolute;
  left: 22px;
  right: 22px;
  bottom: 18px;
  color:#fff;
  z-index:1;
  transition: transform .25s ease;
}

.overlay h4{
  font-family:'Montserrat', sans-serif;
  font-size: 34px;
  line-height: 1.05;
  margin:0 0 10px;
}

.overlay p{
  margin:0;
  max-width: 520px;
  opacity:.95;
  font-size: 14px;
  line-height: 1.35;
}

/* Hover animasyon */
.grid-item:hover{
  transform: scale(1.02);
}

.grid-item:hover::before{
  opacity: 1;
}

.grid-item:hover .overlay{
  transform: translateY(-6px);
}

/* Küçük kartlarda yazıyı biraz küçült */
.item-c .overlay h4,
.item-d .overlay h4{
  font-size: 26px;
}

.item-c .overlay p,
.item-d .overlay p{
  font-size: 13px;
  max-width: 260px;
}

/* Responsive */
@media (max-width: 900px){
  .image-grid{
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .item-a,.item-b,.item-c,.item-d{
    grid-area:auto;
    min-height: 220px;
  }
  .overlay h4{ font-size: 28px; }
}


/* Footer */
footer { background: #222; color: #fff; padding: 50px 0; margin-top: 50px; }
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; }

/* Responsive */
@media (max-width: 768px) {
    nav ul { display: none; } /* Basitlik için mobilde menüyü gizledik */
    .hero h1 { font-size: 2rem; }
    .image-grid { grid-template-columns: 1fr; }
    .large, .tall { grid-column: span 1; grid-row: span 1; }
}

/* ===== WHY SEKA ===== */
.kicker{
  font-family:'Montserrat', sans-serif;
  font-weight:700;
  letter-spacing:.12em;
  font-size:13px;
  opacity:.9;
  margin-bottom:10px;
}

.why-seka{
  padding: 80px 0;
  background:#fff;
}

.why-wrap{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 60px;
  align-items:center;
}

.why-title{
  font-size: 52px;
  line-height: 1.05;
  margin: 8px 0 18px;
}

.why-list{
  margin: 18px 0 26px;
  display:grid;
  gap: 8px;
  padding:0;
}

.why-list li{
  display:flex;
  gap: 10px;
  align-items:flex-start;
  color:#333;
}

.why-list i{
  margin-top: 4px;
  color:#f37021;
}

.btn-why{
  padding: 14px 34px;
  border-radius: 6px;
}

.why-img{
  border-radius: 18px;
  overflow:hidden;
  box-shadow: 0 18px 50px rgba(0,0,0,.10);
}

.why-img img{
  width:100%;
  height: 360px;
  object-fit: cover;
  display:block;
}


/* ===== STEPS ===== */
.steps{
  padding: 90px 0;
  background: #fafafa;
  position:relative;
}

.steps::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 30% 20%, rgba(0,0,0,.03), transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(0,0,0,.03), transparent 55%);
  pointer-events:none;
}

.steps-wrap{
  position:relative;
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 60px;
  align-items:start;
}

.steps-title{
  font-size: 52px;
  line-height: 1.05;
  margin: 8px 0 14px;
}

.steps-sub{
  max-width: 520px;
  margin-bottom: 26px;
  color:#444;
}

.step-card{
  background:#fff;
  border-radius: 16px;
  padding: 22px 22px;
  display:flex;
  gap: 16px;
  align-items:flex-start;
  box-shadow: 0 14px 45px rgba(0,0,0,.08);
  margin-bottom: 18px;
  border: 1px solid rgba(0,0,0,.04);
}

.step-ico{
  width: 52px;
  height: 52px;
  border-radius: 999px;
  display:grid;
  place-items:center;
  background:#2c6bed;
  color:#fff;
  flex: 0 0 52px;
}

.step-txt h3{
  font-size: 22px;
  margin: 2px 0 6px;
}

.step-txt p{
  margin:0;
  color:#555;
  font-size: 14px;
  line-height: 1.45;
}

/* Active (mavi büyük kutu) */
.step-card.is-active{
  background:#2c6bed;
  color:#fff;
  border-color: rgba(44,107,237,.25);
}

.step-card.is-active .step-txt p{
  color: rgba(255,255,255,.92);
}

.step-card.is-active .step-ico{
  background:#fff;
  color:#2c6bed;
}

.steps-img{
  border-radius: 18px;
  overflow:hidden;
  box-shadow: 0 18px 50px rgba(0,0,0,.10);
}

.steps-img img{
  width:100%;
  height: 640px;
  object-fit: cover;
  display:block;
}

/* ===== Responsive ===== */
@media (max-width: 992px){
  .why-wrap,
  .steps-wrap{
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .why-title,
  .steps-title{
    font-size: 40px;
  }

  .why-img img{
    height: 300px;
  }

  .steps-img img{
    height: 520px;
  }
}

@media (max-width: 480px){
  .why-title,
  .steps-title{
    font-size: 34px;
  }

  .step-card{
    padding: 18px;
  }
}
/* WHY-SEKA: resmi sola, yazıyı sağa al */
.why-left { order: 2; }   /* yazı sağa */
.why-right { order: 1; }  /* resim sola */
@media (max-width: 992px){
  .why-left { order: 1; }
  .why-right { order: 2; }
}
.logo img{
  height: 75px;        /* masaüstü */
  width: auto;
  display: block;
}

@media (max-width: 768px){
  .logo img{
    height: 40px;      /* mobil */
  }
}
/* ===== MOBILE NAV ===== */
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:0;
  cursor:pointer;
}

.nav-toggle span{
  width:26px;
  height:3px;
  background:#333;
  border-radius:3px;
}

/* Mobile */
@media (max-width: 768px){
  .nav-toggle{
    display:flex;
  }

  nav ul{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:#fff;
    flex-direction:column;
    gap:0;
    padding:20px;
    box-shadow:0 10px 30px rgba(0,0,0,.12);
    display:none;
  }

  nav ul li{
    padding:12px 0;
    border-bottom:1px solid #eee;
  }

  nav ul li:last-child{
    border-bottom:0;
  }

  nav ul.show{
    display:flex;
  }
}