:root{
  --vh: 1vh;
}

html, body{
  margin:0;
  padding:0;
  height:100%;
  width:100%;
  background:#0c3d75;
  color:white;
  text-align:center;
  overflow-x:hidden;
}

/* SCREENS */
.screen{
  min-height: calc(var(--vh, 1vh) * 100);
  padding:20px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center; /* 🔥 centers win/lose */
  overflow-y:auto; /* 🔥 allows scroll on mobile */
}

.hidden{display:none;}

.sectionTitle{
  font-family:'Montserrat';
  font-weight:900;
  margin-bottom:20px;
  font-size: calc(18px + 2vw);
}

.gameOverTitle{
  font-family:'Montserrat';
  font-size: calc(40px + 2vw);
  color:#ffe600;
}

/* TEXT */
.textBox{
  font-family:'Open Sans';
  max-width:700px;
  text-align:left;
  margin-top:20px;
  font-size: calc(14px + 0.5vw);
}

/* BUTTONS */
button{
  background:#ffe600;
  color:white; /* 🔥 white text */
  border:3px solid white;
  padding:15px 30px;
  border-radius:25px;
  font-weight:bold;
  cursor:pointer;
}

/* GAME */
#score{
  position:absolute;
  top:20px;
  left:20px;
  font-size:22px;
  font-weight:bold;
}

#gameCanvas{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background:#1e6ed6;
  touch-action:none;
}

/* QUIZ */
.popup{
  position:fixed;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
  background:white;
  color:black;
  padding:25px;
  border-radius:15px;
  max-width:90%;
  font-family:'Open Sans';
}

.quizButton{
  display:block;
  margin:10px auto;
  padding:10px;
  background:#1e6ed6;
  color:white;
  border:none;
  border-radius:10px;
  font-weight:bold;
}