body {
  margin: 0;
  padding: 0;
}
#splash-screen {
  position: absolute;
  z-index: 1000;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background-color: #f2f3f8;
}

#splash-screen img {
  margin-left: calc(100vw - 100%);
  margin-bottom: 30px;
}

#splash-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.splash-spinner {
  animation: rotate 2s linear infinite;
  margin-left: calc(100vw - 100%);
  width: 50px;
  height: 50px;
}

.splash-spinner .path {
  stroke: #469ff3;
  stroke-linecap: round;
  animation: dash 1.5s ease-in-out infinite;
}

@keyframes rotate {
  100% {
    transform: rotate(360deg);
  }
}

@keyframes dash {
  0% {
    stroke-dasharray: 1, 150;
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -35;
  }
  100% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -124;
  }
}

#manual-modal {
  position: fixed;
  z-index: 3000; /* cao hơn SplashScreen */
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.manual-modal-content {
  background: #fff;
  border-radius: 12px;
  max-width: 90%;
  text-align: center;
  padding: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.manual-modal-content h3 {
  margin-bottom: 12px;
  font-size: 16px;
  color: #222;
}

.manual-modal-content p {
  font-size: 14px;
  color: #444;
  line-height: 1.5;
}