:root{--primary-color: #4f46e5;--primary-light: #6366f1;--primary-dark: #4338ca;--secondary-color: #10b981;--secondary-light: #34d399;--secondary-dark: #059669;--danger-color: #ef4444;--danger-light: #f87171;--danger-dark: #dc2626;--warning-color: #f59e0b;--warning-light: #fbbf24;--warning-dark: #d97706;--info-color: #3b82f6;--info-light: #60a5fa;--info-dark: #2563eb;--text-primary: #111827;--text-secondary: #374151;--text-tertiary: #6b7280;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--border-light: #e5e7eb;--border-medium: #d1d5db;--border-dark: #9ca3af;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--radius-sm: .125rem;--radius: 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var(--border-light);border-radius:var(--radius);font-size:.875rem;transition:var(--transition);background-color:var(--bg-primary)}.form-input:focus{outline:none;border-color:var(--primary-light);box-shadow:0 0 0 3px #4f46e51a}.file-input{width:.1px;height:.1px;opacity:0;overflow:hidden;position:absolute;z-index:-1}.file-input-label{display:block;width:100%;padding:.75rem;border:1px dashed var(--border-medium);border-radius:var(--radius);font-size:.875rem;text-align:center;cursor:pointer;transition:var(--transition);background-color:var(--bg-tertiary);color:var(--text-secondary)}.file-input-label:hover{border-color:var(--primary-light);background-color:#4f46e50d}.submit-button,.download-button{width:100%;padding:.75rem;margin-top:1rem;border:none;border-radius:var(--radius);font-weight:500;transition:var(--transition);display:flex;align-items:center;justify-content:center}.submit-button{background-color:var(--primary-color);color:#fff}.submit-button:hover:not(:disabled){background-color:var(--primary-dark);transform:translateY(-1px)}.submit-button:disabled,.download-button:disabled{opacity:.7;cursor:not-allowed}.download-button{background-color:var(--secondary-color);color:#fff}.download-button:hover:not(:disabled){background-color:var(--secondary-dark);transform:translateY(-1px)}.button-loader{width:1rem;height:1rem;border:2px solid rgba(255,255,255,.3);border-radius:var(--radius-full);border-top-color:#fff;animation:spin 1s linear infinite}.campaign-info{margin-top:1rem;padding:1rem;background-color:var(--bg-tertiary);border-radius:var(--radius);font-size:.875rem;overflow-y:auto;max-height:20vh}.campaign-info p{margin-bottom:.5rem}.campaign-info p:last-child{margin-bottom:0}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.results-header h3{font-size:1.25rem;font-weight:600;color:var(--text-primary)}.results-count{font-size:.875rem;color:var(--text-tertiary);background-color:var(--bg-tertiary);padding:.25rem .5rem;border-radius:var(--radius-full)}.table-container{flex:1;overflow:auto;border:1px solid var(--border-light);border-radius:var(--radius)}.results-table{width:100%;border-collapse:collapse;font-size:.875rem}.results-table th{background-color:var(--bg-tertiary);color:var(--text-secondary);font-weight:500;padding:.75rem 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var(--border-light);border-radius:var(--radius-full);border-top-color:var(--primary-color);animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 1024px){.upload-grid{grid-template-columns:1fr}}.refresh-button{margin-left:1rem;padding:.25rem .75rem;background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius);font-size:.75rem;cursor:pointer;transition:var(--transition)}.refresh-button:hover{background-color:var(--bg-secondary)}.campaigns-list{display:flex;flex-direction:column;gap:1rem;overflow-y:auto;max-height:60vh;padding-right:.5rem}.campaign-item{background-color:var(--bg-tertiary);border-radius:var(--radius);padding:1rem;border:1px solid var(--border-light)}.campaign-info h4{margin:0 0 .5rem;color:var(--text-primary);font-size:1rem}.campaign-info p{margin:.25rem 0;color:var(--text-secondary);font-size:.875rem}.progress-container{margin:1rem 0}.progress-bar{height:8px;background-color:var(--border-light);border-radius:4px;overflow:hidden;margin-bottom:.5rem}.progress-fill{height:100%;background-color:var(--primary-color);transition:width .3s ease}.progress-text{font-size:.75rem;color:var(--text-tertiary);display:block;text-align:right}.status-summary{display:flex;gap:1rem;font-size:.75rem;margin-top:.5rem}.status-success{color:var(--success-dark)}.status-failed{color:var(--danger-dark)}.no-campaigns{text-align:center;padding:2rem;color:var(--text-tertiary);font-style:italic}.campaign-item.slim{padding:.75rem;background-color:var(--bg-secondary);border-radius:var(--radius);border:1px solid var(--border-light);margin-bottom:.5rem}.campaign-item.slim:last-child{margin-bottom:0}.campaign-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;font-size:.875rem}.campaign-name{font-weight:500;color:var(--text-primary);margin-bottom:.25rem}.sender-email{color:var(--text-tertiary);font-size:.75rem}.progress-count{font-size:.75rem;color:var(--text-secondary);background-color:var(--bg-tertiary);padding:.25rem .5rem;border-radius:var(--radius)}.progress-container{margin:.5rem 0 0}.progress-bar{height:6px;background-color:var(--border-light);border-radius:3px;overflow:hidden}.progress-fill.indeterminate{width:100%!important;background-color:var(--primary-light);animation:pulseAnimation 1.5s ease-in-out infinite}@keyframes pulseAnimation{0%{opacity:.3}50%{opacity:1}to{opacity:.3}}.progress-fill.animated{height:100%;background-color:var(--primary-color);background-image:linear-gradient(-45deg,rgba(255,255,255,.2) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.2) 50%,rgba(255,255,255,.2) 75%,transparent 75%,transparent);background-size:20px 20px;animation:progressAnimation 1s linear infinite}@keyframes progressAnimation{0%{background-position:0 0}to{background-position:20px 0}}.progress-text{font-size:.75rem;color:var(--text-tertiary);display:block;text-align:right;margin-top:.25rem}body{margin:0;padding:0;overflow:hidden;font-family:Segoe UI,sans-serif;background:linear-gradient(to bottom right,#e0f7fa,#f0fdf4);height:100vh;display:flex;justify-content:center;align-items:center}.login-container{display:flex;justify-content:center;align-items:center;height:100%}.login-card{background:#fff;padding:20px;border-radius:8px;box-shadow:0 4px 8px #0000001a;width:100%;max-width:400px;text-align:center}h2{margin-bottom:20px}input{width:90%;padding:10px;margin:10px 0;border-radius:5px;border:1px solid #ccc}.loginButton{width:20%;padding:10px;border:none;background-color:#00796b;color:#fff;font-size:16px;border-radius:5px;cursor:pointer;margin-top:10px}.loginButton:hover{background-color:#004d40}p{color:red;font-size:14px}:root{--primary-color: #4a6fa5;--secondary-color: #166088;--accent-color: #4fc3f7;--text-color: #333;--light-gray: #f8f9fa;--medium-gray: #e9ecef;--dark-gray: #6c757d;--success-color: #28a745;--warning-color: #ffc107;--danger-color: #dc3545;--border-radius: 6px;--box-shadow: 0 4px 6px rgba(0, 0, 0, .1);--transition: all .3s ease}*{box-sizing:border-box;margin:0;padding:0}.campaign-list-container{width:100%;height:100%;padding:0;display:flex;flex-direction:column;box-sizing:border-box}.campaign-content{flex:1;display:flex;flex-direction:column;background:#fff;border-radius:6px;box-shadow:0 4px 6px #0000001a;overflow:hidden;margin:20px;height:calc(100% - 40px);width:calc(100% - 40px);box-sizing:border-box}.campaign-header{padding:1.5rem;border-bottom:1px solid var(--medium-gray);display:flex;justify-content:space-between;align-items:center;background-color:#fff}.campaign-header h2{color:var(--secondary-color);font-weight:600;margin:0}.campaign-table-container{flex:1;overflow:auto;position:relative}.campaign-table{width:100%;border-collapse:separate;border-spacing:0;table-layout:auto;min-width:800px}.campaign-table thead{position:sticky;top:0;z-index:10}.campaign-table th{background-color:var(--primary-color);color:#fff;font-weight:500;padding:1rem 1.5rem;text-align:left;position:relative}.campaign-table th:not(:last-child):after{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);height:60%;width:1px;background-color:#ffffff4d}.campaign-table td{padding:1rem 1.5rem;border-bottom:1px solid var(--medium-gray);vertical-align:middle}.campaign-table tbody tr:nth-child(2n){background-color:#00000005}.campaign-table tbody tr:hover{background-color:#4a6fa50d;transition:var(--transition)}.status-sent{background-color:#28a7451a;color:var(--success-color)}.status-failed{background-color:#ef44441a;color:var(--danger-dark)}.loading{padding:2rem;text-align:center;color:var(--dark-gray);display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%}.loading-spinner{border:4px solid rgba(0,0,0,.1);border-radius:50%;border-top:4px solid var(--primary-color);width:40px;height:40px;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.pagination-controls{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-top:1px solid var(--medium-gray);background-color:#fff}.pagination-info{color:var(--dark-gray);font-size:.9rem}.pagination-buttons{display:flex;align-items:center;gap:.5rem}.pagination-controls button{padding:.5rem 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768px){.campaign-list-container{padding:1rem}.campaign-header{flex-direction:column;align-items:flex-start;gap:1rem}.pagination-controls{flex-direction:column;gap:1rem;align-items:stretch}.pagination-buttons{justify-content:space-between}}.campaign-name-button{background:none;border:none;color:#166088;cursor:pointer;padding:0;text-align:left;font:inherit}.campaign-name-button:hover{text-decoration:underline;color:#0d486e}.recipients-container{width:100%;height:100%;padding:0;display:flex;flex-direction:column;box-sizing:border-box}.recipients-content{flex:1;display:flex;flex-direction:column;background:#fff;border-radius:6px;box-shadow:0 4px 6px #0000001a;overflow:hidden;margin:20px;height:calc(100% - 40px);width:calc(100% - 40px);box-sizing:border-box}.recipients-header{padding:1.5rem;border-bottom:1px solid #e9ecef;display:flex;justify-content:space-between;align-items:center;background-color:#fff;flex-wrap:wrap;gap:1rem}.recipients-header h2{color:#166088;font-weight:600;margin:0;display:flex;align-items:center;flex-wrap:wrap;gap:.5rem}.sender-email{color:#6c757d;font-weight:400;font-size:1rem}.header-actions{display:flex;gap:1rem;align-items:center}.back-button,.download-result{padding:.5rem 1rem;background-color:#6c757d;color:#fff;border:none;border-radius:6px;cursor:pointer;font-weight:500;transition:all .3s ease;font-size:.875rem;line-height:1.25;height:36px;display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;white-space:nowrap;margin-top:0;margin-bottom:0;vertical-align:top;position:relative;top:0}.download-result{background-color:#28a745}.back-button:hover{background-color:#5a6268;transform:translateY(-1px)}.download-result:hover:not(:disabled){background-color:#218838;transform:translateY(-1px)}.download-result:disabled{opacity:.6;cursor:not-allowed}.recipients-table-container{flex:1;overflow:auto;position:relative}.recipients-table{width:100%;border-collapse:separate;border-spacing:0;min-width:800px}.recipients-table thead{position:sticky;top:0;z-index:10}.recipients-table th{background-color:#4a6fa5;color:#fff;font-weight:500;padding:1rem 1.5rem;text-align:left;position:relative}.recipients-table th:not(:last-child):after{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);height:60%;width:1px;background-color:#ffffff4d}.recipients-table td{padding:1rem 1.5rem;border-bottom:1px solid #e9ecef;vertical-align:middle}.recipients-table tbody tr:nth-child(2n){background-color:#00000005}.recipients-table tbody tr:hover{background-color:#4a6fa50d}.status-badge{display:inline-block;padding:.35rem .75rem;border-radius:50px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status-pending{background-color:#ffc1071a;color:#ffc107}.status-success{background-color:#28a7451a;color:#28a745}.status-failed{background-color:#dc35451a;color:#dc3545}.status-undeliverable{background-color:#6c757d1a;color:#6c757d}.app-header{height:4rem;background-color:var(--bg-primary);box-shadow:var(--shadow-sm);border-bottom:1px solid var(--border-light);position:sticky;top:0;z-index:50;display:flex;align-items:center;padding:0 1.5rem}.header-content{width:100%;max-width:100%;display:flex;align-items:center;justify-content:space-between}.app-title{font-size:1.25rem;font-weight:600;color:var(--text-primary)}.logout-button{padding:.5rem 1rem;background-color:var(--danger-light);color:#fff;border:none;border-radius:var(--radius);font-weight:500;transition:var(--transition)}.logout-button:hover{background-color:var(--danger-color);transform:translateY(-1px)}.sidebar{width:14rem;height:100vh;background-color:var(--bg-primary);border-right:1px solid var(--border-light);display:flex;flex-direction:column;transition:width .3s ease;overflow:hidden;position:fixed;z-index:40}.sidebar.collapsed{width:4rem}.sidebar-header{height:4.5rem;display:flex;align-items:center;justify-content:flex-end;padding:0 1.25rem;border-bottom:1px solid var(--border-light)}.sidebar.collapsed .sidebar-header{padding:0 .5rem;justify-content:center}.sidebar-toggle{width:2.8rem;height:2.8rem;display:flex;align-items:center;justify-content:center;border-radius:50%;background-color:var(--bg-tertiary);border:none;color:var(--text-primary);transition:all .3s ease;cursor:pointer;box-shadow:0 2px 5px #0000001a}.sidebar-toggle:hover{background-color:var(--primary-color);color:#fff;transform:scale(1.05)}.toggle-icon{font-size:1.6rem!important;font-weight:700;display:block;transition:transform .3s ease}.sidebar.collapsed .toggle-icon{font-size:1.5rem!important}.sidebar-toggle:hover .toggle-icon{transform:rotate(90deg)}.sidebar-nav{padding:.75rem;display:flex;flex-direction:column;gap:.5rem;flex:1;overflow-y:auto}.sidebar.collapsed .sidebar-nav{padding:.5rem}.nav-item{display:flex;align-items:center;padding:.75rem;border-radius:var(--radius);color:var(--text-secondary);text-decoration:none;transition:all .3s ease}.sidebar.collapsed .nav-item{padding:.75rem;justify-content:center}.nav-item:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}.nav-item.active{background-color:var(--primary-light);color:#fff}.nav-icon{width:1.8rem;height:1.8rem;display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:inherit;flex-shrink:0}.sidebar.collapsed .nav-icon{width:1.75rem;height:1.75rem;font-size:1.1rem}.nav-text{margin-left:.75rem;white-space:nowrap;font-weight:500;transition:opacity .3s ease;font-size:.9rem}.nav-chevron{margin-left:auto;font-size:.8rem;opacity:.7}.sidebar.collapsed .nav-text,.sidebar.collapsed .nav-chevron{opacity:0;width:0;margin:0}@media (max-width: 768px){.sidebar{transform:translate(-100%);top:0;height:100vh;z-index:100}.sidebar:not(.collapsed){transform:translate(0);width:14rem;box-shadow:0 0 20px #0003}.sidebar-toggle{width:3rem;height:3rem}.toggle-icon{font-size:1.8rem!important}}.app-container{display:flex;flex-direction:column;height:100vh;width:100vw;overflow:hidden;position:relative}.main-layout{display:flex;flex:1;overflow:hidden;position:relative}.content-area{flex:1;overflow:auto;padding:1.5rem;background-color:var(--bg-secondary);transition:margin-left .2s ease}.version-footer{position:absolute;bottom:0;left:0;right:0;text-align:center;padding:.5rem 1rem;font-size:.75rem;color:var(--text-muted);z-index:10}@media (max-width: 768px){.version-footer{position:fixed;left:0;right:0;text-align:center}}.sidebar.collapsed~.content-area{margin-left:4rem}.sidebar:not(.collapsed)~.content-area{margin-left:14rem}@media (max-width: 768px){.content-area{margin-left:0;padding:1rem}.sidebar:not(.collapsed)~.content-area{margin-left:0}.version-footer{position:fixed}}