html,body{margin:0;padding:0;box-sizing:border-box;font-family:quicksand,sans-serif}.app-header{background-color:#f0f4f3;padding:1.5rem 2rem;display:flex;justify-content:space-between;align-items:center;border-bottom:2px solid #e0e0e0}.header-content h1{font-size:1.8rem;margin:0;color:#2e7d32}.subtitle{font-size:.95rem;color:#555;margin-top:.25rem}#add-activity-btn{background-color:#4caf50;color:#fff;border:none;padding:.6rem 1rem;font-size:.9rem;border-radius:8px;cursor:pointer;transition:background-color .2s ease-in-out}#add-activity-btn:hover{background-color:#388e3c}.app-header i{margin-right:.4rem;color:#2e7d32}#add-activity-btn i{color:#fff;margin-right:.4rem}#add-activity-btn:hover i{transform:scale(1.1);transition:transform .2s ease}@media (max-width: 600px){.app-header{flex-direction:column;align-items:flex-start;gap:.75rem}#add-activity-btn{align-self:stretch;width:100%;text-align:center}}.swal2-select{display:block;width:100%;max-width:90%;margin:0 auto;padding:10px 12px;font-size:1rem;background-color:#f0fdf4;color:#1b4332;border:1px solid #95d5b2;border-radius:8px;outline:none;transition:border-color .3s ease,box-shadow .3s ease}.swal2-select:focus{border-color:#40916c;box-shadow:0 0 5px #40916c80}.swal2-select:disabled{background-color:#e9ecef;color:#6c757d;cursor:not-allowed}.swal-confirm-btn{background-color:#2d6a4f;color:#fff;border-radius:8px;padding:10px 20px;font-weight:600}.swal-cancel-btn{border-radius:8px;padding:10px 20px}.main-content{padding:2rem;max-width:1200px;margin:0 auto}.dashboard{display:grid;gap:2rem}.summary-section{display:flex;justify-content:space-between;align-items:center;background:linear-gradient(135deg,#e8f5e8,#f0f9f0);padding:1.5rem;border-radius:12px;border:1px solid #c8e6c9}.total-emissions{display:flex;align-items:center;gap:.75rem;color:#2e7d32}.total-emissions i{font-size:1.5rem;color:#4caf50}.total-label{font-size:1.1rem;font-weight:600}.total-value{font-size:1.8rem;font-weight:700;color:#1b5e20}.clear-btn{background-color:#f44336;color:#fff;border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-size:.9rem;transition:background-color .2s ease}.clear-btn:hover{background-color:#d32f2f}#category-breakdown{background-color:#fafafa;padding:1.5rem;border-radius:12px;border:1px solid #e0e0e0}#category-breakdown h3{margin:0 0 1rem;color:#2e7d32;font-size:1.2rem}.category-breakdown{display:grid;gap:.75rem}.category-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background-color:#fff;border-radius:8px;border:1px solid #e8e8e8}.category-name{font-weight:600;color:#424242}.category-emissions{font-weight:700;color:#2e7d32}.visual-summary-section{background-color:#fafafa;padding:1.5rem;border-radius:12px;border:1px solid #e0e0e0;margin-bottom:2rem}.visual-summary-section h3{margin:0 0 1rem;color:#2e7d32;font-size:1.2rem;display:flex;align-items:center;gap:.5rem}.visual-summary-section i{color:#4caf50}.chart-container{display:flex;justify-content:center;align-items:center;max-width:400px;margin:0 auto 1rem;position:relative}.chart-container canvas{max-width:100%;height:auto}.chart-legend{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.5rem;margin-top:1rem}.legend-item{display:flex;align-items:center;gap:.5rem;font-size:.9rem}.legend-color{width:16px;height:16px;border-radius:3px;flex-shrink:0}.legend-label{color:#424242;font-weight:500}.legend-value{color:#2e7d32;font-weight:600;margin-left:auto}.no-data-message{text-align:center;color:#757575;padding:2rem;font-style:italic}.no-data-message i{font-size:2rem;color:#4caf50;margin-bottom:1rem;display:block}.activities-section h2{color:#2e7d32;margin-bottom:1rem;font-size:1.4rem}#activity-logs{display:grid;gap:1rem}.activity-log-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;background-color:#fff;border-radius:10px;border:1px solid #e0e0e0;transition:box-shadow .2s ease}.activity-log-item:hover{box-shadow:0 2px 8px #0000001a}.activity-info{display:flex;align-items:center;gap:1rem;flex:1}.category-badge{background-color:#4caf50;color:#fff;padding:.25rem .75rem;border-radius:20px;font-size:.8rem;font-weight:600;text-transform:uppercase}.category-badge.transport{background-color:#2196f3}.category-badge.food{background-color:#ff9800}.category-badge.energy{background-color:#9c27b0}.category-badge.waste{background-color:#795548}.category-badge.water{background-color:#00bcd4}.category-badge.shopping{background-color:#e91e63}.activity-name{font-weight:600;color:#424242;flex:1}.timestamp{font-size:.85rem;color:#757575}.activity-emissions{display:flex;align-items:center;gap:1rem}.co2-value{font-weight:700;color:#2e7d32;font-size:1.1rem}.delete-btn{background-color:#f44336;color:#fff;border:none;padding:.5rem;border-radius:50%;cursor:pointer;transition:background-color .2s ease;width:2rem;height:2rem;display:flex;align-items:center;justify-content:center}.delete-btn:hover{background-color:#d32f2f}.no-activities{text-align:center;padding:3rem 1rem;color:#757575}.no-activities i{font-size:3rem;color:#4caf50;margin-bottom:1rem}.no-activities p{font-size:1.1rem;margin:0}.filter-container{display:flex;align-items:center;margin-bottom:1rem;padding:.75rem;background-color:#f9f9f9;border-radius:8px;border:1px solid #e0e0e0}.filter-label{margin-right:.5rem;font-weight:600;color:#424242}.category-filter-select{padding:.5rem;border:1px solid #ccc;border-radius:6px;background-color:#fff;font-family:quicksand,sans-serif;font-size:.9rem;color:#333;min-width:150px;cursor:pointer;outline:none;transition:border-color .2s ease}.category-filter-select:focus{border-color:#4caf50;box-shadow:0 0 0 2px #4caf5040}.category-filter-select option{padding:.25rem 0}@media (max-width: 600px){.app-header{flex-direction:column;align-items:flex-start;gap:.75rem}#add-activity-btn{align-self:stretch;width:100%;text-align:center}.filter-container{flex-direction:column;align-items:flex-start;gap:.5rem}.category-filter-select{width:100%}}@media (max-width: 768px){.main-content{padding:1rem}.summary-section{flex-direction:column;gap:1rem;align-items:stretch}.total-emissions{justify-content:center}.activity-log-item{flex-direction:column;gap:1rem;align-items:stretch}.activity-info{flex-direction:column;align-items:flex-start;gap:.5rem}.activity-emissions{justify-content:space-between}.chart-container{max-width:300px}.chart-legend{grid-template-columns:1fr}}