* {
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:Arial, sans-serif;
}

body {
  background:#f7f7f7;
  color:#333;
}

.header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:15px 20px;
  background:#111;
  color:#fff;
}

.menu a {
  color:#fff;
  margin-left:15px;
  text-decoration:none;
}

main {
  padding:20px;
}

.footer {
  background:#222;
  color:#fff;
  text-align:center;
  padding:15px;
}

/* 📱 Mobil */
@media (max-width:768px) {
  .header {
    flex-direction:column;
  }

  .menu {
    margin-top:10px;
  }
}
/* 🔥 SLIDER */
.slider {
  position:relative;
  overflow:hidden;
  height:90vh;
}

.slide {
  position:absolute;
  top:0; left:0;
  width:100%;
  height:100%;
  background-size:cover;
  background-position:center;
  display:none;
}

.slide.active {
  display:block;
}

.slide::after {
  content:"";
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.45);
}

.slide-content {
  position:relative;
  z-index:2;
  max-width:600px;
  padding:60px;
  color:#fff;
}

.slide-content h1 {
  font-size:48px;
  margin-bottom:15px;
}

.slide-content p {
  font-size:18px;
  margin-bottom:25px;
}

.btn {
  display:inline-block;
  padding:14px 30px;
  background:#f5a623;
  color:#000;
  font-weight:bold;
  text-decoration:none;
  border-radius:5px;
}

/* 🔧 SERVICES */
.services {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  padding:60px 20px;
  background:#fff;
}

.service-box {
  background:#f2f2f2;
  padding:40px;
  text-align:center;
  font-weight:bold;
  border-radius:8px;
}

/* 📱 MOBİL */
@media(max-width:768px){
  .slide-content h1 {font-size:32px;}
  .services {grid-template-columns:1fr;}
}