:root {
  /* Kích thước mặc định cho PC */
  --wheel-size: 600px;
  --wheel-origin: 300px; /* Bằng 1/2 size */
}

@media (max-width: 768px) {
  :root {
    /* Kích thước tự động co giãn cho Mobile */
    --wheel-size: 90vw; 
    --wheel-origin: 45vw; /* Bằng 1/2 size */
  }
}

.hc-luckywheel ul,
.hc-luckywheel li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hc-luckywheel {
  position: relative;
  width: var(--wheel-size); 
  height: var(--wheel-size); 
  border-radius: 50%;
  box-shadow: 0 2px 3px #333, 0 0 2px #000;
}

.hc-luckywheel-container {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  width: inherit;
  height: inherit;
  border-radius: inherit;
  background-clip: padding-box;
  background-image: url('https://minhkhanhwp.com/wp-content/uploads/2026/01/Asset-4.png');
  background-size: cover;
  transform: rotate(15deg);
  background-position: center;
  background-repeat: no-repeat;
  -webkit-transition: transform 6s ease;
  transition: transform 6s ease;
}

.hc-luckywheel-container canvas {
  width: inherit;
  height: inherit;
  border-radius: 50%;
}

.hc-luckywheel-list {
  position: absolute;
  left: 0;
  top: 0;
  width: inherit;
  height: inherit;
  z-index: 2;
}

.hc-luckywheel-item {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  color: #ffffff;
  font-weight: bold;
}

.hc-luckywheel-item span {
  position: relative;
  font-size: 8px !important;
  display: block;
  padding-top: calc(var(--wheel-size) / 12); /* Tỷ lệ khoảng cách chữ từ tâm */
  writing-mode: vertical-rl; 
  text-orientation: mixed;
  margin: 0 auto;
  text-align: center;
  -webkit-transform-origin: 50% var(--wheel-origin);
  -ms-transform-origin: 50% var(--wheel-origin);
  transform-origin: 50% var(--wheel-origin);
}

.hc-luckywheel-btn {
  position: absolute;
  /* Căn giữa nút bấm chính xác */
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  border-radius: 50%;
  color: #f4e9cc;
  text-align: center;
  text-decoration: none;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hc-luckywheel-btn img {
  width: 50%; /* Để ảnh nút chiếm hết khung btn */
  height: auto;
  max-width: 150px; /* Giới hạn kích thước nút tối đa */
}

/* Mobile cụ thể cho nút bấm */
@media (max-width: 768px) {
  .hc-luckywheel-btn img {
    width: 50%; /* Để ảnh nút chiếm hết khung btn */
    max-width: 90px; /* Nút nhỏ hơn trên mobile */
  }
}

body { margin: 0; padding: 0; height: 100vh; width: 100%; }

.bg {
  background-image: url('https://minhkhanhwp.com/wp-content/uploads/2026/01/VONG-XOAY-MB.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
  width: 100%;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0;
  padding: 0;
  overflow: hidden; /* Tránh tràn màn hình trên mobile */
}