body,
html {
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  color: #ebf7ff;
  font-family: 'Roboto', sans-serif;
  text-align: center;
  background: linear-gradient(135deg, #001a33 0%, #003366 100%);
  margin: 0;
  user-select: none;
}

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

section {
  height: 100%;
  width: 100%;
  position: relative;
}

.iframe {
  height: 100%;
  width: 100%;
  overflow: hidden;
  border: none;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  pointer-events: none;
}

#main {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background-color: rgba(0, 26, 51, 0.3);
  transition: opacity 0.5s ease-out;
  z-index: 2;
}

#main-container {
  height: 100%;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(3px);
}

#content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 30px;
  padding: 50px;
  margin: 30px;
  border-radius: 15px;
  max-width: 650px;
  background: rgba(0, 53, 102, 0.85);
  box-shadow: 0 8px 32px rgba(0, 31, 63, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

h1 {
  margin: 0 0 20px;
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  background: linear-gradient(to right, #00b7ff, #ebf7ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  margin: 0 0 10px;
  font-size: 1.5rem;
  font-weight: 500;
  color: #00b7ff;
}

h3 {
  margin: 15px 0 10px;
  font-size: 1.2rem;
  font-weight: 500;
  color: #66ccff;
}

h4 {
  margin: 0;
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.6;
  color: #d6ebff;
}

span {
  display: block;
  margin: 5px 0;
  font-size: 0.95rem;
  font-weight: 400;
  color: #b3d9ff;
  transition: transform 0.3s ease;
}

span:hover {
  transform: translateX(5px);
}

.loader {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 25px;
}

.wave-animation {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  position: relative;
  margin-bottom: 15px;
}

.wave-animation::before,
.wave-animation::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(45deg, #00b7ff, #0066cc);
  animation: wave 2s infinite ease-in-out;
  box-shadow: 0 0 15px rgba(0, 183, 255, 0.5);
}

.wave-animation::before {
  width: 100%;
  height: 100%;
  opacity: 0.7;
}

.wave-animation::after {
  width: 80%;
  height: 80%;
  top: 10%;
  left: 10%;
  opacity: 0.5;
  animation-delay: 0.5s;
}

@keyframes wave {
  0% {
    transform: scale(0.8);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.9;
  }
  100% {
    transform: scale(0.8);
    opacity: 0.3;
  }
}

.loader span {
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 2px;
  animation: fade 2s infinite;
  text-shadow: 0 0 8px rgba(0, 183, 255, 0.6);
}

@keyframes fade {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}