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

html, body { height: 100%; }

body {
  background: #191920;               
  color: #fff;
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: center;        
  align-items: center;            
  height: 100vh;
  margin: 0;                 
}

.container {
  display: flex;
  flex-direction: column;        
  align-items: center;
  gap: 1rem;                      
}

.sysbtcontainer {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 0.5rem;                      
}

.canvasContainer {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 0.5rem;                      
}

canvas {
  background-color: wheat;
margin-top: 1rem;
margin-bottom: 1rem;
  border-radius: 6px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}


.buttonContainer {
  display: flex;
  justify-content: center;
  gap: 0.75rem;                
}

.score{
  font-size:larger;
  font-weight: bolder;
  margin: 1rem;
}

.heading{
  font-size: xx-large;
  font-weight: bolder;
  margin: 0.5rem;
}

.navbtcontainer{
  display: flex;
  justify-content: center;
  gap: 0.75rem;
}

button {
  --button_radius: 0.75em;
  --button_color: #262425;
  --button_outline_color: #ffbf00;
  font-size: 17px;
  font-weight: bold;
  border: none;
  cursor: pointer;
  border-radius: var(--button_radius);
  background: var(--button_outline_color);
  
}

.button_nav {
  display: block;
  box-sizing: border-box;
  border: 2px solid var(--button_outline_color);
  border-radius: var(--button_radius);
  padding: 0.2em 0.4em;
  background: var(--button_color);
  color: var(--button_outline_color);
  transform: translateY(-0.2em);
  transition: transform 0.1s ease;
  display: flex;                /* ← IMPORTANT: make it a flex row */
    flex-direction: row;          /* items side-by-side */
    align-items: center;          /* vertical centering of icon + text */
    justify-content: center;
    gap: 0.6em;
}

button:hover .button_nav{
  transform: translateY(-0.33em);
}

button:active .button_nav {
  transform: translateY(0);
}