:root{--bg-color:#121212;--surface-color:#1e1e1e;--primary-color:#589dff;--text-color:#e0e0e0;--text-muted-color:#a0a0a0;--border-color:#333}@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}body{font-family:'Inter',sans-serif;line-height:1.7;color:var(--text-color);background-color:var(--bg-color);margin:0;padding:20px;display:flex;justify-content:center;animation:fadeIn 0.5s ease-out}.container{max-width:800px;background-color:var(--surface-color);padding:40px;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,0.2);border:1px solid var(--border-color)}h1,h2{color:var(--primary-color);margin-top:30px;margin-bottom:10px;text-align:center}h1{font-size:2em;font-weight:800}.subtitle{text-align:center;color:var(--text-muted-color);margin-bottom:30px;font-size:0.9em}.preamble{background-color:rgba(88,157,255,0.05);border-left:3px solid var(--primary-color);padding:15px 20px;margin:20px 0;border-radius:4px;font-size:0.95em}h2{font-size:1.6em;font-weight:700;border-bottom:1px solid var(--border-color);padding-bottom:8px;margin-top:40px;margin-bottom:20px}p,li{font-size:1em;margin-bottom:15px;color:#dcdcdc}a{color:var(--primary-color);text-decoration:none;transition:color 0.3s ease}a:hover{text-decoration:underline;color:#7ab5ff}ul{list-style-type:none;padding-left:20px}ul li{position:relative;padding-left:25px;margin-bottom:10px;transition:background-color 0.2s ease}ul li::before{content:'•';position:absolute;left:0;top:0;color:var(--primary-color);font-size:1.2em;line-height:1.6}strong,b{color:#ffffff;font-weight:600}#back-btn{position:fixed;top:25px;left:25px;color:var(--text-muted-color);background-color:var(--surface-color);border:1px solid var(--border-color);text-decoration:none;font-size:18px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all 0.3s ease}#back-btn:hover{color:var(--primary-color);background-color:#2a2a2a;transform:scale(1.1)}@media (max-width:575px){body{padding:10px}.container{padding:20px}h1{font-size:1.6em}h2{font-size:1.3em}p,li{font-size:.95em}#back-btn{top:15px;left:15px;width:40px;height:40px;font-size:16px}}