body, html {
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  font-family: 'Montserrat', Arial, sans-serif;
}

#bg-video {
  position: fixed;
  top: 0;
  left: 0;
  min-width: 100vw;
  min-height: 100vh;
  width: auto;
  height: auto;
  z-index: 1;
  object-fit: cover;
  filter: brightness(0.5) blur(2px);
}

.intro-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 2;
  background: rgba(0,0,0,0.2);
}

.logo {
  width: 500px;
  max-width: 80vw;
  margin-bottom: 40px;
  filter: drop-shadow(0 0 30px #fff8);
  animation: logo-pop 1.2s cubic-bezier(.68,-0.55,.27,1.55);
}

@keyframes logo-pop {
  0% { transform: scale(0.7) rotate(-10deg); opacity: 0; }
  80% { transform: scale(1.1) rotate(2deg); opacity: 1; }
  100% { transform: scale(1) rotate(0); }
}

.buttons {
  display: flex;
  gap: 32px;
}

.btn {
  padding: 18px 38px;
  font-size: 1.3rem;
  color: #fff;
  background: linear-gradient(90deg, #ff00cc 0%, #3333ff 100%);
  border: 2px solid #fff2;
  border-radius: 40px;
  text-decoration: none;
  font-weight: bold;
  letter-spacing: 2px;
  box-shadow: 0 0 16px 4px #ff00cc55, 0 4px 24px #0006;
  transition: transform 0.2s, box-shadow 0.2s, background 0.3s, border 0.3s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  animation: btn-pulse 2s infinite alternate;
}

@keyframes btn-pulse {
  0% { box-shadow: 0 0 16px 4px #ff00cc55, 0 4px 24px #0006; }
  100% { box-shadow: 0 0 32px 8px #3333ff88, 0 8px 32px #000a; }
}

.btn::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, #ff00cc, #3333ff, #ff00cc 100%);
  filter: blur(18px) brightness(1.5);
  opacity: 0.5;
  z-index: 0;
  transition: opacity 0.3s;
  animation: btn-glow 2.5s linear infinite;
}

@keyframes btn-glow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.btn span {
  position: relative;
  z-index: 1;
}

.btn:hover, .btn:focus {
  transform: scale(1.12) translateY(-6px) rotate(-1deg);
  box-shadow: 0 0 48px 12px #ff00ccaa, 0 12px 40px #3333ff99;
  background: linear-gradient(90deg, #3333ff 0%, #ff00cc 100%);
  border: 2px solid #fff8;
}