/* styling completed with the help of chatgpt */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

body {
  /* background: radial-gradient(circle at top, #0b0d17 0%, #10152b 100%);
  color: #e0e6ed; */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 20px 40px;
  overflow-x: hidden;
  background-image: url(images/nasa-background.jpg);
  background-repeat: no-repeat;
  background-size: cover;
}

header {
  width: 100%;
  height: 16px;
  background: repeating-linear-gradient(
    90deg,
    #d32f2f 0 25%,
    #ffffff 25% 50%,
    #d32f2f 50% 75%,
    #ffffff 75% 100%
  );
  background-size: 80px 100%;
  animation: slideStripe 8s linear infinite;
}

@keyframes slideStripe {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 80px 0;
  }
}

/*floating astronaut icon*/
.astronaut {
  position: absolute;
  top: 35px;
  right: 40px;
  width: 60px;
  height: 60px;
  background: url('https://cdn-icons-png.flaticon.com/512/3212/3212608.png')
    no-repeat center/contain;
  animation: floatAstronaut 5s ease-in-out infinite;
  opacity: 0.85;
}

@keyframes floatAstronaut {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

h1 {
  font-size: 2.4rem;
  color: #ffffff;
  margin-top: 60px;
  margin-bottom: 15px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-bottom: 2px solid #d32f2f;
  padding-bottom: 10px;
}

p {
  color: #d0d6e0;
  font-size: 1.1rem;
  margin-bottom: 30px;
  max-width: 650px;
  line-height: 1.6;
}

button {
  background: #d32f2f;
  color: #fff;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
  box-shadow: 0 3px 8px rgba(211, 47, 47, 0.3);
}

button:hover {
  background: #b71c1c;
  box-shadow: 0 4px 12px rgba(183, 28, 28, 0.4);
  transform: translateY(-2px);
}

/* facilities container */
#nasaFac {
  width: 90%;
  max-width: 900px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(6px);
  overflow-y: auto;
  max-height: 70vh;
  margin-top: 20px;
  color: white;
  font-size: 20px;
}

/* facilities list */
#facilitiesList {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

#facilitiesList li {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 5px solid #d32f2f;
  border-radius: 6px;
  padding: 15px 18px;
  text-align: left;
  line-height: 1.5;
  color: #f5f7fa;
  box-shadow: 0 1px 4px rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

#nasaFac::-webkit-scrollbar {
  width: 8px;
}

#nasaFac::-webkit-scrollbar-thumb {
  background: #d32f2f;
  border-radius: 4px;
}

/* responsive design */
@media (max-width: 600px) {
  h1 {
    font-size: 2rem;
  }

  .astronaut {
    width: 45px;
    height: 45px;
    right: 20px;
  }

  #facilitiesList li {
    font-size: 0.9rem;
  }
}