:root {
    --bg: #050505;
    --text: #00ff41;
    --card-bg: #111;
    --border: #333;
}
body { background: var(--bg); color: var(--text); font-family: 'Courier New', monospace; padding: 20px; text-align: center; }
a { text-decoration: none; color: inherit; }

/* LAYOUT GRID */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; max-width: 800px; margin: 40px auto; }

/* CARDS (The Buttons) */
.card {
    background: var(--card-bg); border: 1px solid var(--border); padding: 30px;
    transition: 0.3s; cursor: pointer; display: block;
}
.card:hover { background: #003300; transform: scale(1.05); border-color: var(--text); }
.card h2 { margin: 0; font-size: 1.5rem; }
.card p { color: #888; font-size: 0.9rem; }

/* NAVIGATION HEADER */
nav { border-bottom: 1px solid var(--border); padding-bottom: 15px; margin-bottom: 30px; display: flex; justify-content: space-between; }
.back-btn { border: 1px solid var(--text); padding: 5px 15px; font-size: 0.8rem; }
.back-btn:hover { background: var(--text); color: black; }