.main-content{max-width:100%;margin:20px auto;padding:20px}.chart-container{background:#fff;border-radius:16px;box-shadow:0 8px 30px #00000014;padding:30px;margin:30px;display:flex;flex-direction:column;align-items:center}.chart-header{width:100%;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-bottom:20px}.chart-header h1{font-size:2em;font-weight:600;color:#2c3e50;margin:0}.chart-filters{display:flex;gap:10px;background:#eef2f5;border-radius:12px;padding:5px}.filter-btn{background:transparent;border:none;color:#7f8c8d;font-weight:500;padding:8px 15px;border-radius:8px;cursor:pointer;transition:background-color .3s ease,color .3s ease}.filter-btn:hover{background-color:#dce1e6;color:#2c3e50}.filter-btn.active{background-color:#3498db;color:#fff;box-shadow:0 4px 10px #3498db4d}.chart-canvas-wrapper{width:100%;height:400px}.date-selector-container{width:100%;display:flex;align-items:center;justify-content:center;gap:15px;margin-top:20px}.date-selector-container label{font-size:.9em;color:#555}#date-picker,#view-rate-btn{padding:10px 15px;border-radius:8px;border:1px solid #dcdfe6;font-size:.9em}#date-picker{width:180px;color:#333}#view-rate-btn{background-color:#34495e;color:#fff;border:none;cursor:pointer;transition:background-color .3s ease}#view-rate-btn:hover{background-color:#2c3e50}.daily-rate-card{background:#ecf0f1;border-radius:12px;padding:15px 20px;margin-top:20px;text-align:center;box-shadow:0 2px 10px #0000000d;width:100%;max-width:300px}.daily-rate-card h3{margin:0 0 5px;font-size:1.1em;color:#34495e}.daily-rate-card p{margin:0;font-size:1.8em;font-weight:700;color:#2ecc71}.overview-cards-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin:30px}.overview-card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 4px 15px #0000000d;transition:transform .3s ease,box-shadow .3s ease}.overview-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px #0000001a}.overview-card h3{font-size:1em;color:#7f8c8d;margin:0 0 10px}.card-value{font-size:1.5em;font-weight:700;color:#333;margin:0}.card-value.up{color:#2ecc71}.card-value.down{color:#e74c3c}@media (max-width: 768px){.chart-container{padding:20px;margin:0;border-radius:0%;font-size:10px}.chart-header{flex-direction:column;text-align:center;gap:15px}.chart-header h1{font-size:1.5em}.chart-filters{width:100%;justify-content:space-between}.date-selector-container{flex-direction:column;align-items:stretch}#date-picker,#view-rate-btn{width:100%;box-sizing:border-box}.overview-cards-container{grid-template-columns:1fr}}