body {
	  font-family: "Segoe UI", Arial, sans-serif;
	  margin: 0;
	  padding: 0;
	  color: #fff;
	  text-align: center;
	  height: 100vh;
	  display: flex;
	  flex-direction: column;
	  justify-content: center;
	  overflow: hidden;
	  background:
		linear-gradient(rgba(13, 71, 161, 0.6), rgba(25, 118, 210, 0.6)),
		url('/assets/img/bg-cbt.jpg') center/cover no-repeat;
	  background-attachment: fixed;
	}

    header img {
      margin-top: 5vh;
      max-width: 120px;
      width: 30vw;
      height: auto;
    }
    h1 {
      font-size: 1.6rem;
	  margin-top: -1rem;
      margin-bottom: 0.2rem;
    }
    p {
      font-size: 0.75rem;
      margin-bottom: 0.8rem;
    }
    .rules {
	  background: rgba(255, 255, 255, 0.85);
	  border-radius: 12px;
	  padding: 1rem;
	  margin: 1rem auto;
	  width: 100%;
	  max-width: 680px;
	  text-align: left;
	  font-size: 0.85rem;
	  line-height: 1.5;
	  color: #000;
	}
    .rules p {
      margin: 0.5rem 0;
      font-weight: bold;
    }
    .rules ul {
      margin: 0.4rem 0 0.8rem 1.2rem;
      padding: 0;
    }
    .rules li {
      margin: 0.3rem 0;
    }
    .btn-primary {
      display: block;
      padding: 12px;
      font-size: 1rem;
      font-weight: bold;
      color: #fff;
      background: #ffa726;
      border-radius: 50px;
      text-decoration: none;
      box-shadow: 0 4px 6px rgba(0,0,0,0.3);
      transition: background 0.3s, transform 0.2s;
      margin: 1rem auto 0 auto;
      width: 90%;
      max-width: 500px;
    }
    .btn-primary:hover {
      background: #fb8c00;
      transform: translateY(-3px);
    }
	footer {
	  margin-top: -10px;
	  font-size: 0.8rem;
	  padding: 1.5rem 1rem;
	  opacity: 0.8;
	}
	
	@media (max-width: 768px) {
	  html, body {
		height: 100%;
		margin: 0;
		padding: 0;
		display: flex;
		flex-direction: column;
	  }

	  .content-wrapper {
		flex: 1;
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
		padding: 0 1rem;
		box-sizing: border-box;
	  }
	  
	  .rules {
		font-size: 0.65rem;
		padding: 0.8rem;
		margin: 1rem auto;
		width: 95%;
		box-sizing: border-box;
	  }

	  .btn-primary {
		display: block;
		margin: 0rem 1rem 2rem 1rem;
		padding: 10px 0;
	  }

	  footer {
		padding: 1rem 1rem;
		text-align: center;
		margin-top: -30px;
	  }
	}
	
	.install-banner {
	  position: fixed;
	  bottom: 20px;
	  left: 50%;
	  transform: translateX(-50%);
	  width: 90%;
	  max-width: 400px;
	  background: #2563eb;
	  color: white;
	  border-radius: 16px;
	  padding: 12px 16px;
	  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
	  display: flex;
	  align-items: center;
	  justify-content: space-between;
	  gap: 10px;
	  z-index: 1000;
	  animation: slideUp 0.4s ease-out;
	}

	.install-text {
	  font-size: 14px;
	  line-height: 1.3;
	  flex: 1;
	}

	.install-btn {
	  background: white;
	  color: #2563eb;
	  border: none;
	  padding: 6px 12px;
	  border-radius: 10px;
	  font-weight: bold;
	  cursor: pointer;
	}

	.close-btn {
	  background: transparent;
	  color: white;
	  border: none;
	  font-size: 18px;
	  line-height: 1;
	  cursor: pointer;
	}

	@keyframes slideUp {
	  from { transform: translate(-50%, 100%); opacity: 0; }
	  to { transform: translate(-50%, 0); opacity: 1; }
	}