:root {
  --white: #fff;
  --black: #000;
  --gray: #f2f2f2;
  --primary: #007bff;
  --footer-bg: #212529;
}

body {
  padding-top: 50px;
  font-family: "Raleway", sans-serif;
  background: var(--white);
  color: var(--black);
}

/* Utility */
.beyaz { background: var(--white); }
.gri { background: var(--gray); }
.siyah { background: var(--black); color: var(--white); }

/* Divider */
.ayrac {
  border: none;
  border-top: 3px solid var(--black);
  max-width: 250px;
  margin: 25px auto;
}

/* Slider */
.resimSlider { height: 600px; }

.ekipKart img:hover,
.figure:hover {
  opacity: 0.8;
}

/* Back to top */
#backToTopBtn {
  display: none;
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  font-size: 20px;
  background: #0d6efd;
  color: var(--white);
  border-radius: 50%;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0,0,0,.25);
  transition: background-color .3s;
}

#backToTopBtn:hover {
  background: #0b5ed7;
}

/* Read more */
.more-text { display: none; }

.read-more-button {
  background: var(--primary);
  color: var(--white);
  border: none;
  padding: 8px 12px;
  border-radius: 5px;
  cursor: pointer;
}

/* Carousel */
.carousel-caption {
  background: rgba(0,0,0,.45);
  color: var(--white);
  border-radius: 15px;
  padding: 20px 30px;
  text-shadow: 0 2px 4px rgba(0,0,0,.6);
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  background: rgba(0,0,0,.6);
  border-radius: 50%;
  padding: 20px;
  transition: background-color .3s;
}

.carousel-control-prev-icon:hover,
.carousel-control-next-icon:hover {
  background: rgba(0,0,0,.9);
}

/* Swiper */
.swiper {
  height: 400px;
  margin-top: 100px;
}

.swiper-slide {
  background: #eee;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: bold;
}

/* Footer */
footer {
  padding: 3rem 0;
  background: var(--footer-bg);
  color: var(--white);
  text-align: center;
}

/* Mobile */
@media (max-width: 768px) {
  .resimSlider { height: 300px; }
  .swiper {
    height: 250px;
    margin-top: 60px;
  }
}