/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden; /* Ngăn thanh cuộn */
}

/* Nền động */
body {
  font-family: Arial, sans-serif;
  color: white;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  animation: changeBackground 24s infinite;
}

/* Hiệu ứng đổi ảnh nền */
@keyframes changeBackground {
  0%   { background-image: url('image/psyquiii.jpg'); }
  25%  { background-image: url('image/anmusic3.jpg'); }
  50%  { background-image: url('image/hcbmusic1.jpg'); }
  75%  { background-image: url('image/womusic1.jpg'); }
  100% { background-image: url('image/psyquiii.jpg'); }
}

/* Lớp làm mờ nhẹ nền nếu cần */
.overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.2);
  z-index: 0;
}

/* Nội dung chính */
.home-content {
  position: relative;
  z-index: 1;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 25px;
  padding: 60px 50px;
  width: 90%;
  max-width: 1200px;
  backdrop-filter: blur(8px);
}

h1 {
  font-size: 60px;
  margin-bottom: 30px;
}

p {
  font-size: 22px;
  line-height: 1.8;
  margin-bottom: 25px;
}