body { font-family: 'Inter', sans-serif; background: #f0f2f5; margin: 0; }
.main-container { display: flex; min-height: 100vh; }

.sidebar { width: 260px; transition: 0.3s; }
.content-area { flex-grow: 1; overflow-y: auto; }

.card { border-radius: 12px; }
.stat-icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; border-radius: 10px; }

canvas { max-height: 350px; }