body { background: #f8f9fa; }
.auth-form { background: #fff; padding: 2rem; border-radius: 1rem; box-shadow: 0 0 10px #eee; }
.stats-card { border-radius: 10px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); margin-bottom: 20px; transition: transform 0.3s; }
.stats-card:hover { transform: translateY(-5px); }
.timer-container { background: #fff; border-radius: 10px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); padding: 20px; margin-bottom: 20px; }
.timer-display { font-size: 2.5rem; font-weight: bold; color: #007bff; }