:root {
    --bg-void: #0f111a;        
    --text-primary: #d1d5db;   
    --accent-blue: #3b82f6;    
    --accent-glow: #60a5fa;    
}

.riddle-image {
    max-width: 700px;
    width: 100%;   
    height: auto; 
    display: block;
    margin: 0 auto;  
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-void);
    color: var(--text-primary);
    font-family: 'Courier New', Courier, monospace; 
}

.center {
  margin: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}


.intro-body {
    display: block; 
    overflow: hidden; 
    position: relative;
}

#rain-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1; 
    pointer-events: none; 
}

.fullscreen-intro {
    position: absolute; 
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    z-index: 1; 
}

h1 {
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 5px;
}

p {
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 5px;
}

.subtitle {
    font-size: 0.9em;
    color: #6b7280;
    margin-bottom: 30px;
    letter-spacing: 1px;
}

.action-btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--accent-blue);
    color: white;
    border: none;
    font-family: inherit;
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-decoration: none;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.action-btn:hover {
    background-color: var(--accent-glow);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}