*{
  box-sizing:border-box;
}

html,
body{
  width:100%;
  height:100%;
  margin:0;
}

body{
  font-family:Arial, Helvetica, sans-serif;
  color:#ffffff;
  background:#060ce9;
}

.jeopardy_board{
  min-height:100%;
}

.board_grid{
  min-height:100vh;
  display:grid;
  grid-template-columns:repeat(4, minmax(110px, 1fr));
  grid-auto-rows:minmax(90px, 1fr);
  background:#060ce9;
  border:2px solid #000000;
}

.header_column,
.question_column{
  display:flex;
  align-items:center;
  justify-content:center;
  min-width:0;
  min-height:0;
  padding:8px;
  border:2px solid #000000;
  color:#ffffff;
  text-align:center;
  font-weight:bold;
  overflow-wrap:anywhere;
}

.header_column{
  border-bottom-width:5px;
  font-size:clamp(1.25rem, 3vw, 2.25rem);
}

.question_column{
  background:#060ce9;
  color:rgb(255, 255, 0);
  cursor:pointer;
  font:inherit;
  font-size:clamp(2.1rem, 5.6vw, 3.5rem);
  text-shadow:2px 2px 0 #000000;
}

.question_column:hover,
.question_column:focus{
  background:#1a20ff;
  outline:3px solid #ffffff;
  outline-offset:-6px;
}

.question_column_complete{
  background:#060ce9;
  color:transparent;
  cursor:pointer;
}

.question_overlay,
.completion_overlay{
  position:fixed;
  inset:0;
  background:#060ce9;
  z-index:10;
}

.question_reveal{
  width:100%;
  height:100%;
  padding:24px;
  border:0;
  color:#ffffff;
  background:#060ce9;
  cursor:pointer;
  font-family:Arial, Helvetica, sans-serif;
  font-size:clamp(1.8rem, 6vw, 4rem);
  font-weight:bold;
  white-space:pre-wrap;
}

.completion_overlay{
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
}

.completion_overlay[hidden]{
  display:none;
}

.completion_panel{
  max-width:720px;
  text-align:center;
}

.completion_panel h1{
  margin:0 0 24px 0;
  font-size:clamp(2.5rem, 8vw, 5rem);
}

.completion_actions{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
}

.completion_actions button{
  min-height:44px;
  padding:8px 14px;
  border:2px solid #000000;
  color:#ffffff;
  background:#060ce9;
  font:inherit;
  font-weight:bold;
  cursor:pointer;
}

.completion_actions button:hover,
.completion_actions button:focus{
  background:#1a20ff;
  outline:3px solid #ffffff;
  outline-offset:2px;
}

@media (max-width: 700px){
  .board_grid{
    grid-template-columns:repeat(4, minmax(72px, 1fr));
    grid-auto-rows:minmax(72px, 1fr);
  }

  .header_column,
  .question_column{
    padding:4px;
  }
}