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

:root {
    --bg-color: #0D0C1D;
    --light: #DBE5E6;
}

.stars {
  position: fixed;   /* behind everything */
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none; /* don't block clicks */
  z-index: -1;          /* behind all content */
  background: #0D0C1D;
  overflow: hidden;
}

.star {
  position: absolute;
  border-radius: 50%;
  background: white;
  opacity: 0.8;
  animation: twinkle 4s infinite alternate;
}

@keyframes twinkle {
  0% { opacity: 0.3; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-2px); }
  100% { opacity: 0.3; transform: translateY(0); }
}

.shooters {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
  pointer-events: none;

}

.shooting-star {
  position: absolute;
  width: 80px;        /* longer tail */
  height: 15px;        /* thin streak */
  background: linear-gradient(135deg, orange, transparent); /* comet tail */
  border-radius: 50%;
  opacity: 0.8;
  transform-origin: left center; /* rotate around the start of tail */
  animation: shoot linear forwards;
  pointer-events: auto;
  cursor: pointer;
}

@keyframes shoot {
  from {
    transform: translate(0,0) rotate(220deg);
    opacity: 1;
  }
  to {
    transform: translate(800px, 800px) rotate(220deg); /* moves diagonally */
    opacity: 0;
  }
}


/* Popup Background */
.popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  display: none;  
  align-items: center;
  justify-content: center;
  z-index: 999;
}

/* Popup Box */
.popup-box {
  background: #ffffff;
  color: #000;
  padding: 20px;
  border-radius: 10px;
  width: 300px;
  text-align: center;
  font-family: 'Orbitron', sans-serif;
}

.popup-box textarea {
  width: 100%;
  height: 80px;
  margin-top: 10px;
  background: #e9e9e9;
  border: none;
  border-radius: 6px;
  padding: 8px;
  resize: none;
}

.popup-box button {
  margin-top: 15px;
  padding: 8px 12px;
  border: none;
  border-radius: 6px;
  background: #A3001E;
  color: #fff;
  cursor: pointer;
}

body {
    font-family: 'Orbitron', sans-serif;
    font-size: 20px;
    background: var(--bg-color);
    color: var(--light);
}

button {
    font-family: 'Orbitron', sans-serif;
    font-size: 20px;
    background: #888888;
    color: #ccc;
}

a {
    text-decoration: none; /*removes underline*/
    color: var(--light);
}

ul { /*unordered lists*/
    list-style: none; /*removes bullets*/
}

.navbar { padding: 20px; }
.navbar .container { display: flex; justify-content: space-between; align-items: center; }

.navbar .quote{
    font-size: 15px;
}
.container-wide { display: flex; gap: 5%; justify-content: center; margin: 20px; }

.shuttle-wrapper {
    width: 100%;
    display: flex;
    flex-direction: column;    /* <— fix: make vertical */
    align-items: center;       /* center everything horizontally */
    margin-top: 20px;
    margin-bottom: 20px;
}


.shuttle-img {
    max-width: 400px;   /* adjust size */
    width: 100%;
    height: auto;
}

.shuttle-start {
  display: block;
  margin: 40px auto 0 auto;
  width: 300px;       /* adjust if needed */
}

#shuttleStack {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}


.shuttle-img,
#shuttleStack img {
    width: 400px;
    height: auto;
}