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

body {
  font-family: "Orbitron", sans-serif;
  background: #0a0e27;
  color: #ffffff;
  padding: 20px;
  min-height: 100vh;
}

/* UTILITY CLASS */
.hidden {
  display: none;
}

/* NAVIGATION BAR */
#nav-bar {
  background: #1b263b;
  padding: 20px;
  text-align: center;
  border-radius: 10px;
  margin-bottom: 30px;
}

.btn {
  background: transparent;
  color: #00d9ff;
  border: 2px solid #00d9ff;
  padding: 12px 30px;
  margin: 0 10px;
  border-radius: 8px;
  font-family: "Orbitron", sans-serif;
  font-size: 1em;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn:hover {
  background: rgba(0, 217, 255, 0.1);
  transform: translateY(-2px);
}

.btn.active {
  background: #00d9ff;
  color: #ffffff;
}

/* HEADER */
.header {
  background: #1b263b;
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 30px;
  position: relative;
  text-align: center;
}

.header h1 {
  font-size: 2em;
  color: #00d9ff;
  font-weight: 900;
}

#live-indicator {
  display: inline-block;
  background: #ff6b35;
  color: #ffffff;
  padding: 8px 20px;
  border-radius: 25px;
  font-size: 0.9em;
  font-weight: 700;
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  animation: pulse 2s infinite;
}

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

/* ISS SECTION */
#iss {
  margin-bottom: 40px;
}

/* HERO SECTION */
#hero {
  text-align: center;
  margin-bottom: 40px;
  font-size: 2.5em;
  color: #ffffff;
  font-weight: 900;
  text-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
}

/* CARDS */
.card {
  background: rgba(27, 38, 59, 0.6);
  border: 2px solid #00d9ff;
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 0 30px rgba(0, 217, 255, 0.2);
  text-align: center;
  margin-bottom: 20px;
}

#iss-position {
  font-size: 2.5em;
  font-weight: 900;
  color: #00d9ff;
}

#space-people {
  font-size: 1.5em;
  color: #00d9ff;
}

/* TIMESTAMP FOOTER */
#iss-timestamp,
#moon-timestamp {
  text-align: center;
  color: #8892b0;
  font-size: 0.9em;
  margin-top: 20px;
}

/* MOON SECTION */
#moon {
  margin-bottom: 40px;
}

#moon-data {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px;
}

#moon-data div {
  margin-top: 20px;
}

#moon-data p {
  display: block;
  font-size: 2em;
  margin: 15px 0;
  color: #00d9ff;
  font-weight: 700;
}

#moon-emoji {
  font-size: 15em;
}

/* MOON SPECIFIC STYLES */

.moon-info {
  font-size: 1em;
  margin: 15px 0;
  color: #ffffff;
}

.moon-info span {
  color: #00d9ff;
  font-weight: 700;
}

/* ASTRONAUT LIST */
.astronaut-list {
  list-style: none;
  margin-top: 20px;
  text-align: left;
}

.astronaut-list li {
  padding: 12px;
  margin: 8px 0;
  background: rgba(0, 217, 255, 0.1);
  border-left: 3px solid #00d9ff;
  border-radius: 5px;
  font-size: 0.95em;
}

/* LABELS */
.label {
  color: #8892b0;
  font-size: 0.9em;
  margin-bottom: 15px;
}

/* COORDINATES AND COUNT STYLES */
.coordinates {
  font-size: 2.5em;
  font-weight: 900;
  color: #00d9ff;
  margin: 15px 0;
}

.astronaut-count {
  font-size: 4em;
  font-weight: 900;
  color: #00d9ff;
  margin: 20px 0;
}

/* RESPONSIVE DESIGN */
@media (max-width: 480px) {
  #hero,
  #iss-position,
  .coordinates {
    font-size: 1.5em;
  }

  .header h1 {
    font-size: 1.5em;
  }

  #iss-header.header h1 {
    margin-right: 80px;
  }

  .astronaut-count {
    font-size: 1.8em;
  }

  .btn {
    margin: 10px;
  }
}
@media ((min-width: 481px) and (max-width: 768px)) {
  body {
    padding: 10px;
  }

  .btn {
    display: block;
    width: 100%;
    margin: 10px 0;
  }

  .header h1 {
    font-size: 1.5em;
  }

  #live-indicator {
    position: static;
    transform: none;
    display: block;
    margin-top: 10px;
  }

  #hero {
    font-size: 1.8em;
  }

  #iss-position {
    font-size: 1.8em;
  }

  .astronaut-count {
    font-size: 2.8em;
  }
}