body {
  margin: 0;
  font-family: 'Cairo', sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: #0b3d0b; /* أخضر غامق */
  color: white;
  text-align: center;
  overflow: hidden;
}

h1 {
  font-size: 3.8rem;
  font-weight: 900;
  color: #009c3b; /* أخضر البرازيل */
  padding: 20px 40px;
  margin-bottom: 25px;
  border: 3px solid #009c3b;
  border-radius: 20px;
  text-shadow: 0 0 10px #009c3b;
  background: rgba(0,0,0,0.5);
}

.subtitle {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: #fff;
  text-shadow: 0 0 5px #fff;
  animation: blink 1.5s infinite;
}

@keyframes blink {
  50% {
    opacity: 0.5;
  }
}

.arrow {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #ffdd00; /* أصفر */
  display: flex;
  justify-content: center;
  align-items: center;
  animation: moveArrow 1.5s infinite;
  margin: 0 auto 25px auto;
  box-shadow: 0 0 15px #ffdd00, 0 0 30px #fff;
}

.arrow::after {
  content: "↓";
  font-size: 2rem;
  color: #000;
  font-weight: bold;
}

@keyframes moveArrow {
  0%,100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(20px);
  }
}

.cta-button {
  font-size: 2rem;
  padding: 20px 50px;
  border-radius: 50px;
  background: #ffdd00;
  border: 3px solid #000;
  color: #000;
  cursor: pointer;
  font-weight: bold;
  box-shadow: 0 0 15px #ffdd00, 0 0 30px #fff;
  transition: all 0.3s ease;
}

.cta-button:hover {
  transform: scale(1.1);
  box-shadow: 0 0 30px #ffdd00, 0 0 50px #fff;
}

.note {
  margin-top: 25px;
  font-size: 1rem;
  background: rgba(0,0,0,0.6);
  padding: 10px 15px;
  border-radius: 10px;
  border: 1px solid #009c3b;
  animation: floatNote 3s ease-in-out infinite alternate;
}

@keyframes floatNote {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-10px);
  }
}