body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: black;
  margin: 0;
  overflow: hidden;
}

#gameCanvas {
  border: 2px solid white;
  border-radius: 10px;
  max-width: 95vw;
  max-height: 90vh;
  background: transparent;
}

/* Menus & popups scale for smaller devices */
.menu-paper, .popup-content {
  width: 90%;
  max-width: 500px;
  padding: 20px;
}

.menu-paper h1 {
  font-size: clamp(32px, 8vw, 64px);
}

.menu-btn {
  font-size: clamp(16px, 5vw, 22px);
  padding: 10px 20px;
}


/* Popup */
.popup {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.75);
  display: none; /* hidden by default */
  align-items: center;
  justify-content: center;
  z-index: 999;
}

/* Notebook-style popup content */
.popup-content {
  width: 500px;
  padding: 40px;
  border: 2px solid #000;
  background: repeating-linear-gradient(
    #fff,
    #fff 28px,
    #dceafc 28px,
    #dceafc 29px
  ); /* notebook lines */
  position: relative;
  text-align: center;
  font-family: "Rock Salt", cursive;
  color: black;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
}

/* Red margin line */
.popup-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50px;
  width: 2px;
  height: 100%;
  background: red;
}



/* Replay button (token) */
#replayBtn {
  margin-top: 20px;
  width: 80px;
  cursor: pointer;
  transition: transform 0.2s;
}

#replayBtn:hover {
  transform: scale(1.2);
  content: url("assets/light_token.png"); /* 👈 swaps token image */
}

#goodTrip, #badTrip {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
  display: none;
}

/* Notebook-style menu */
.menu {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fdf6e3; /* paper color */
  z-index: 1000;
}

.menu-paper {
  width: 500px;
  padding: 40px;
  border: 2px solid #000;
  background: repeating-linear-gradient(
    #fff,
    #fff 28px,
    #dceafc 28px,
    #dceafc 29px
  ); /* notebook lines */
  position: relative;
  text-align: center;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
  border-radius: 12px;
}

.menu-paper::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50px;
  width: 2px;
  height: 100%;
  background: red; /* notebook margin line */
}

.menu-paper h1 {
  font-family: "Rock Salt", cursive;
  font-size: 64px;
  margin: 20px 0;
  color: black;
  text-shadow: 1px 1px 0 white;
}

#menuStoner {
  width: 120px;
  display: block;
  margin: 0 auto;
}

/* Buttons */
.menu-btn {
  margin: 10px;
  padding: 12px 24px;
  font-size: 22px;
  font-family: "Rock Salt", cursive;
  background: black;
  color: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
}

.menu-btn:hover {
  transform: scale(1.1);
  background: #333;
}

/* Help popup */
.popup {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.75);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}