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var(--border-color);border-radius:var(--border-radius);background:#fff;font-size:1rem;color:var(--text-color);cursor:pointer;transition:var(--transition);min-width:150px}.location-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #ba1f391a}.dropzone{border:3px dashed var(--border-color);border-radius:var(--border-radius);padding:40px 20px;cursor:pointer;background:#fafbfc;transition:var(--transition);margin-bottom:20px}.dropzone:hover{border-color:var(--primary-color);background:#fef7f8}.dropzone-active{border-color:var(--primary-color);background:#fef7f8;transform:scale(1.02)}.dropzone-has-file{border-color:var(--primary-color);background:#fef7f8}.dropzone-content{display:flex;flex-direction:column;align-items:center;gap:15px}.dropzone-icon{font-size:3rem;opacity:.7}.dropzone-text{margin:0;font-size:1.1rem;color:var(--text-light);font-weight:500}.file-info{background:#f8f9fa;border:1px solid var(--border-color);border-radius:var(--border-radius);padding:15px 20px;margin-bottom:20px;display:inline-flex;align-items:center;gap:10px}.file-name{font-weight:600;color:var(--text-color)}.file-size{color:var(--text-light);font-size:.9rem}.upload-button{background:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);padding:15px 30px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:10px;min-width:200px;justify-content:center}.upload-button:hover:not(.upload-button-disabled){background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}.upload-button-disabled{background:#ccc;cursor:not-allowed;transform:none;box-shadow:none}.spinner{width:16px;height:16px;border:2px solid transparent;border-top:2px solid white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.status-message{margin-top:20px;padding:15px 20px;border-radius:var(--border-radius);font-weight:500;animation:fadeIn .3s ease}.status-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.status-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.App{padding:10px}.app-header{padding:30px 20px}.app-title{font-size:2rem}.main-content{padding:30px 20px}.content-sections{gap:30px}.upload-section,.dashboard-section{padding:20px}.upload-section{max-width:100%}.location-selector{flex-direction:column;gap:10px}.date-range-selector{gap:10px}.date-inputs{flex-direction:column;gap:10px}.date-range-filter{min-width:auto;width:100%}.date-filter-inputs{flex-direction:column;gap:8px}.csv-format-tooltip{margin-bottom:15px}.tooltip-content{width:300px;left:-50px}.tooltip-content:before,.tooltip-content:after{left:70px}.csv-example{padding:10px}.sample-row{flex-direction:column;align-items:flex-start;gap:4px}.sample-label{min-width:auto}.dropzone{padding:30px 15px}.upload-button{width:100%;min-width:auto}.dashboard-grid{gap:15px;grid-template-columns:1fr}.dashboard-card{padding:15px}.stat-number{font-size:2rem}.activity-item{flex-direction:column;align-items:flex-start;gap:8px}.activity-status{align-items:flex-start}.dashboard-header{flex-direction:column;align-items:flex-start;gap:10px}.dashboard-controls{width:100%;justify-content:space-between}.card-title-section{flex-direction:column;align-items:flex-start;gap:10px}.batch-section-controls,.batch-deletion-controls{align-items:flex-start;width:100%}.batch-deletion-actions{flex-direction:column;width:100%}.activity-table-container{max-height:400px}.activity-table{font-size:.8rem}.activity-table th,.activity-table td{padding:8px 6px}.activity-table th{font-size:.75rem}.select-all-button,.clear-selection-button,.delete-selected-button{width:100%;justify-content:center}}.unsubscribers{width:100%}.unsubscribers-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;flex-wrap:wrap;gap:15px}.unsubscribers-title{margin:0;font-size:1.8rem;font-weight:600;color:var(--text-color)}.unsubscribers-controls{display:flex;align-items:center;gap:15px;flex-wrap:wrap}.unsubscribers-loading,.unsubscribers-error{text-align:center;padding:40px 20px}.unsubscribers-loading .spinner{margin:0 auto 20px}.unsubscribers-error p{color:var(--primary-color);margin-bottom:20px}.unsubscribers-stats{display:flex;gap:20px;margin-bottom:30px;align-items:center}.stats-card{background:#f8f9fa;border:1px solid var(--border-color);border-radius:var(--border-radius);padding:20px;text-align:center;flex:1;transition:var(--transition)}.stats-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.stats-card h3{margin:0 0 10px;font-size:1rem;font-weight:600;color:var(--text-color)}.add-unsubscriber-button{background:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);padding:12px 20px;font-size:.9rem;font-weight:600;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:6px;white-space:nowrap}.add-unsubscriber-button:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-hover)}.add-unsubscriber-form{background:#fff;border:1px solid var(--border-color);border-radius:var(--border-radius);padding:25px;margin-bottom:25px;box-shadow:var(--shadow)}.add-unsubscriber-form h3{margin:0 0 20px;font-size:1.2rem;font-weight:600;color:var(--text-color);border-bottom:2px solid var(--primary-color);padding-bottom:8px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:var(--text-color);font-size:.9rem}.form-group input,.form-group select{width:100%;padding:12px;border:2px solid var(--border-color);border-radius:var(--border-radius);font-size:.9rem;color:var(--text-color);background:#fff;transition:var(--transition)}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #ba1f391a}.form-group input:disabled,.form-group select:disabled{background:#f8f9fa;color:var(--text-light);cursor:not-allowed}.form-actions{display:flex;gap:15px;margin-top:25px}.submit-button{background:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);padding:12px 24px;font-size:.9rem;font-weight:600;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:8px}.submit-button:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-hover)}.submit-button:disabled{background:#ccc;cursor:not-allowed;transform:none;box-shadow:none}.cancel-button{background:#6c757d;color:#fff;border:none;border-radius:var(--border-radius);padding:12px 24px;font-size:.9rem;font-weight:600;cursor:pointer;transition:var(--transition)}.cancel-button:hover:not(:disabled){background:#5a6268;transform:translateY(-1px)}.cancel-button:disabled{background:#ccc;cursor:not-allowed;transform:none}.unsubscribers-table-container{background:#fff;border-radius:var(--border-radius);box-shadow:var(--shadow);overflow:hidden}.unsubscribers-table{width:100%;border-collapse:collapse;font-size:.9rem}.unsubscribers-table th,.unsubscribers-table td{padding:15px 12px;text-align:left;border-bottom:1px solid var(--border-color)}.unsubscribers-table th{background:var(--primary-color);color:#fff;font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.5px}.unsubscribers-table tbody tr:hover{background:#f8f9fa}.unsubscribers-table tbody tr:last-child td{border-bottom:none}.email-cell{font-weight:600;color:var(--text-color);word-break:break-all}.ip-cell{font-family:Courier New,monospace;font-size:.85rem;color:var(--text-light)}.actions-cell{text-align:center}.resubscribe-button{background:#28a745;color:#fff;border:none;border-radius:var(--border-radius);padding:6px 12px;font-size:.8rem;font-weight:600;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:4px}.resubscribe-button:hover{background:#218838;transform:translateY(-1px);box-shadow:0 2px 4px #0000001a}.no-unsubscribers{text-align:center;padding:40px 20px;color:var(--text-light);font-style:italic}@media(max-width:768px){.unsubscribers-header{flex-direction:column;align-items:flex-start;gap:10px}.unsubscribers-controls{width:100%;justify-content:space-between}.unsubscribers-stats{flex-direction:column;gap:15px}.add-unsubscriber-form{padding:20px}.form-actions{flex-direction:column;gap:10px}.submit-button,.cancel-button{width:100%;justify-content:center}.unsubscribers-table-container{overflow-x:auto}.unsubscribers-table{font-size:.8rem}.unsubscribers-table th,.unsubscribers-table td{padding:10px 8px}.resubscribe-button{padding:4px 8px;font-size:.75rem}}.sign-in{max-width:380px;margin:32px auto;display:grid;gap:12px}.sign-in input{padding:10px;border:1px solid #bbb;border-radius:6px}.sign-in button,.session-controls button{padding:10px 18px;cursor:pointer}.session-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.mode-banner{padding:14px;background:#fff3cd;border-radius:6px}