body { 
  margin: 0; 
  padding: 0; 
  min-height: 100vh;
  background: linear-gradient(135deg, #0a0a2a, #1a1a4a, #0a0a2a);
  background-size: 400% 400%;
  animation: gradientBG 20s ease infinite;
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  color: #ffffff;
  overflow-x: hidden;
  position: relative;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 15% 25%, rgba(0, 198, 255, 0.1) 0%, transparent 20%),
    radial-gradient(circle at 85% 75%, rgba(0, 114, 255, 0.1) 0%, transparent 20%);
  z-index: -1;
}
.container.master-1 {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0px 30px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: auto;
}
.large-header {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
#master-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.main-title {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 20px;
  background: linear-gradient(45deg, #00c6ff, #0072ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 10px rgba(0, 198, 255, 0.3);
  letter-spacing: 2px;
  animation: fadeInDown 1s ease-out;
}
.main-title-sub {
  font-size: 6rem;
  font-weight: 800;
  margin-bottom: 30px;
  background: linear-gradient(45deg, #ffffff, #a0d2ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 3px;
  animation: fadeInUp 1s ease-out 0.3s both;
}
.main-title-sub-1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 40px;
  animation: fadeInUp 1s ease-out 0.6s both;
}
.main-title-sub-1 a {
  color: #ffffff;
  text-decoration: none;
  padding: 15px 40px;
  background: rgba(0, 198, 255, 0.1);
  border: 1px solid rgba(0, 198, 255, 0.3);
  border-radius: 30px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 114, 255, 0.2);
}
.main-title-sub-1 a:hover {
  background: rgba(0, 198, 255, 0.2);
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(0, 114, 255, 0.4);
}
.main-title-sub-2 {
  font-size: 1.2rem;
  font-weight: 300;
  animation: fadeInUp 1s ease-out 0.9s both;
}
.main-title-sub-2 a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  margin: 0 15px;
  transition: all 0.3s ease;
}
.main-title-sub-2 a:hover {
  color: #00c6ff;
  text-shadow: 0 0 10px rgba(0, 198, 255, 0.5);
}
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 768px) {
  .main-title {
    font-size: 2.5rem;
  }
  
  .main-title-sub {
    font-size: 3.5rem;
  }
  
  .main-title-sub-1 {
    font-size: 1.5rem;
  }
  
  .main-title-sub-2 {
    font-size: 1rem;
  }
  
  .main-title-sub-1 a {
    padding: 12px 30px;
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .main-title {
    font-size: 2rem;
  }
  
  .main-title-sub {
    font-size: 2.5rem;
  }
  
  .main-title-sub-1 {
    font-size: 1.2rem;
  }
  
  .main-title-sub-2 {
    font-size: 0.9rem;
  }
  
  .main-title-sub-1 a {
    padding: 10px 20px;
    font-size: 1rem;
  }
}