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

body, html {
  height: 100%;
  background-color: #000; /* siyah arka plan */
  overflow: hidden;
}

.background-overlay {
  position: relative;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.content {
  text-align: center;
  color: #fff;
  z-index: 10;
}

.content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.content p {
  font-size: 1.5rem;
  font-weight: 400;
  opacity: 0.8;
}

/* Arka plan ikonları */
.icons {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 150%;
  height: 150%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  opacity: 0.15; /* hafif ama gözükür */
  pointer-events: none;
  animation: floatIcons 40s linear infinite;
}

.icons img {
  width: 80px;
  height: 80px;
  margin: 20px;
  filter: invert(1); /* SVG ikonları beyaza çevirir */
  transition: transform 0.3s ease;
}

.icons img:hover {
  transform: scale(1.2);
}

@keyframes floatIcons {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}