body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: sans-serif;
}

.landing-container {
  background-image: url('/s7/img/desktop_skor777.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  height: 100vh;
  width: 100vw;
  position: relative;
}

.overlay {
  position: absolute;
  top: 80%;
  left: 10%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  padding: 40px;
  border-radius: 16px;
  text-align: center;
}

.black-glass-button {
  background: linear-gradient(to bottom, #ff4d4d 0%, #b30000 100%); /* Merah gradasi */
  border: 2px solid #ff9999; /* Border merah muda */
  border-radius: 20px;
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.4), 0 5px 15px rgba(0,0,0,0.6);
  color: white;
  font-size: 24px;
  padding: 20px 60px;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
  animation: pulse 1.5s ease infinite;
  text-decoration: none;
  display: inline-block;
}


.black-glass-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px 20px 0 0;
}

@keyframes pulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@media only screen and (max-width: 767.98px) {
  .landing-container {
    background-image: url('/s7/img/mobile_skor777.webp');
    background-size: cover;
    background-position: 0% 80%;
    background-repeat: no-repeat;
    background-attachment: scroll;
  }

  .overlay {
    position: absolute;
    top: 75%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 30px 20px;
    border-radius: 12px;
    text-align: center;
  }

  .black-glass-button {
    font-size: 20px;
    padding: 18px 50px;
  }
}