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#e1e1e1}.admin-header h1{margin:0;color:#333;font-size:28px}.admin-user-info{display:flex;align-items:center;gap:15px}.admin-user-info span{font-weight:500;color:#666}.logout-btn{background-color:#f44336;color:#fff;border:none;padding:8px 16px;border-radius:4px;cursor:pointer;font-weight:500;transition:background-color .2s}.logout-btn:hover{background-color:#d32f2f}.admin-tabs{display:flex;gap:10px;margin-bottom:20px;border-bottom:1px solid #e1e1e1}.admin-tabs button{padding:10px 20px;border:none;background:none;font-size:16px;font-weight:500;color:#666;cursor:pointer;position:relative;transition:color .2s}.admin-tabs button:hover{color:#333}.admin-tabs button.active{color:#2196f3}.admin-tabs button.active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:3px;background-color:#2196f3}.admin-content{background-color:#fff;border-radius:8px;box-shadow:0 2px 8px #0000001a;padding:20px}.error-message{background-color:#ffebee;color:#c62828;padding:10px;border-radius:4px;margin-bottom:20px}.loading{display:flex;justify-content:center;align-items:center;height:200px;font-size:18px;color:#666}*{box-sizing:border-box;margin:0;padding:0}:root{--primary-color: #4a6bfc;--primary-dark: #3955d8;--secondary-color: #1ed760;--secondary-dark: #18b04e;--dark-color: #242c3b;--light-color: #f8faff;--danger-color: #ff5252;--warning-color: #ffb340;--text-color: #2e3a51;--text-light: #6f7b97;--shared-color: #9c27b0;--shared-light: #f3e5f5;--border-radius: 8px;--border-radius-large: 12px;--box-shadow: 0 8px 30px rgba(74, 107, 252, .08);--transition: all .3s ease}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:#f5f8ff;color:var(--text-color);line-height:1.6;background-image:linear-gradient(135deg,#f5f8ff,#f0f4ff);min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:30px}header{display:flex;justify-content:space-between;align-items:center;padding:20px 0;margin-bottom:40px;border-bottom:1px solid rgba(0,0,0,.05)}header h1{color:var(--primary-color);font-weight:700;letter-spacing:-.5px;position:relative;display:inline-block}header h1:after{content:"";position:absolute;bottom:-8px;left:0;width:40%;height:3px;background-color:var(--secondary-color);border-radius:10px}.user-controls{display:flex;align-items:center;gap:15px}.user-welcome{margin-right:10px;font-weight:500;color:var(--text-light)}.form-container{max-width:550px;margin:0 auto;padding:40px;background-color:#fff;border-radius:var(--border-radius-large);box-shadow:var(--box-shadow);transition:var(--transition)}.form-container:hover{box-shadow:0 15px 35px #4a6bfc1f;transform:translateY(-5px)}.form-group{margin-bottom:25px}label{display:block;margin-bottom:10px;font-weight:600;color:var(--dark-color);font-size:.95rem}input,select,textarea{width:100%;padding:12px 15px;border:1px solid #e3e8f8;border-radius:var(--border-radius);font-size:16px;transition:var(--transition);background-color:#fbfcff}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4a6bfc26}textarea{min-height:120px;resize:vertical}.btn{display:inline-block;padding:12px 24px;background-color:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);cursor:pointer;font-size:16px;font-weight:600;text-decoration:none;transition:var(--transition);box-shadow:0 4px 6px #4a6bfc26;letter-spacing:.2px}.btn:hover{background-color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 7px 10px #4a6bfc33}.btn:active{transform:translateY(0);box-shadow:0 2px 3px #4a6bfc33}.btn-secondary{background-color:var(--secondary-color);box-shadow:0 4px 6px #1ed76026}.btn-secondary:hover{background-color:var(--secondary-dark);box-shadow:0 7px 10px #1ed76033}.btn-danger{background-color:var(--danger-color);box-shadow:0 4px 6px #ff525226}.btn-danger:hover{background-color:#e74747;box-shadow:0 7px 10px #ff525233}.btn-logout{background-color:transparent;color:var(--text-light);padding:8px 16px;font-size:14px;box-shadow:none;border:1px solid #e3e8f8}.btn-logout:hover{background-color:#f1f5ff;color:var(--primary-color);box-shadow:none;transform:translateY(0)}.btn-add-task{background-color:var(--secondary-color);padding:13px 26px;font-weight:600;display:flex;align-items:center;gap:8px;box-shadow:0 4px 6px #1ed76026}.btn-add-task:before{content:"+";font-size:20px;font-weight:400;margin-right:5px}.btn-add-task:hover{background-color:var(--secondary-dark);box-shadow:0 7px 10px #1ed76033}.task-filters{display:flex;gap:10px;margin-top:15px}.filter-btn{background-color:transparent;border:1px solid #e3e8f8;color:var(--text-light);padding:6px 14px;border-radius:20px;font-size:14px;cursor:pointer;transition:var(--transition)}.filter-btn:hover{background-color:#f1f5ff;color:var(--primary-color)}.filter-btn.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.tasks-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:30px}.tasks-title-filters{display:flex;flex-direction:column}.tasks-header h2{font-size:1.7rem;color:var(--dark-color);font-weight:700;letter-spacing:-.5px}.task-list{list-style:none;margin-top:20px;display:grid;gap:20px}.task-item{background-color:#fff;padding:25px;border-radius:var(--border-radius-large);box-shadow:var(--box-shadow);display:flex;justify-content:space-between;align-items:flex-start;transition:var(--transition);border-left:5px solid;overflow:hidden;position:relative}.task-item:hover{transform:translateY(-5px);box-shadow:0 15px 35px #4a6bfc1f}.task-item[data-status=pending]{border-left-color:var(--warning-color)}.task-item[data-status=in_progress]{border-left-color:var(--primary-color)}.task-item[data-status=completed]{border-left-color:var(--secondary-color)}.task-info{flex:1;padding-right:20px}.task-info h3{margin-bottom:10px;color:var(--dark-color);font-size:1.2rem;font-weight:600;transition:var(--transition)}.task-item:hover .task-info h3{color:var(--primary-color)}.task-description{color:var(--text-light);margin-bottom:15px;font-size:.95rem;line-height:1.5}.task-meta{display:flex;gap:15px;font-size:.85rem;color:var(--text-light);align-items:center;flex-wrap:wrap}.task-due-date{display:flex;align-items:center}.task-due-date:before{content:"📅";margin-right:5px;font-size:14px}.task-shared-badge{display:inline-flex;padding:4px 10px;border-radius:30px;font-size:.75rem;font-weight:600;letter-spacing:.5px;align-items:center;background-color:var(--shared-light);color:var(--shared-color)}.task-shared-badge:before{content:"👥";margin-right:5px;font-size:12px}.task-owner{display:inline-flex;align-items:center;color:var(--text-light);font-weight:500}.task-owner:before{content:"👤";margin-right:5px;font-size:12px}.task-actions{display:flex;gap:10px}.task-status{display:inline-flex;padding:5px 12px;border-radius:30px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;align-items:center}.status-pending{background-color:#fff8e6;color:var(--warning-color)}.status-pending:before{content:"⏱️";margin-right:5px;font-size:12px}.status-in-progress{background-color:#edf3ff;color:var(--primary-color)}.status-in-progress:before{content:"🔄";margin-right:5px;font-size:12px}.status-completed{background-color:#e8fff0;color:var(--secondary-color)}.status-completed:before{content:"✅";margin-right:5px;font-size:12px}.user-search{position:relative;margin-top:10px}.search-results{position:absolute;top:100%;left:0;width:100%;max-height:200px;overflow-y:auto;background-color:#fff;border:1px solid #e3e8f8;border-radius:var(--border-radius);box-shadow:0 5px 15px #0000001a;z-index:10;list-style:none}.search-results li{padding:10px 15px;cursor:pointer;transition:background-color .2s;border-bottom:1px solid #f1f5ff}.search-results li:last-child{border-bottom:none}.search-results li:hover{background-color:#f5f8ff;color:var(--primary-color)}.selected-users{margin-top:15px;margin-bottom:15px;display:flex;flex-wrap:wrap;gap:10px}.selected-user{display:flex;align-items:center;gap:8px;background-color:var(--shared-light);padding:6px 12px;border-radius:20px;font-size:.85rem;color:var(--shared-color)}.btn-remove{background-color:transparent;border:none;color:var(--shared-color);font-size:16px;cursor:pointer;width:20px;height:20px;display:flex;align-items:center;justify-content:center;padding:0;border-radius:50%;line-height:1}.btn-remove:hover{background-color:#9c27b01a}.search-loading,.no-results{padding:10px;text-align:center;color:var(--text-light);font-size:.9rem}.auth-page{display:flex;justify-content:center;align-items:center;min-height:90vh;padding:20px;background-image:linear-gradient(135deg,#f5f8ff,#e8efff)}.auth-form{width:100%;max-width:450px}.auth-form h2{margin-bottom:25px;color:var(--dark-color);text-align:center;font-size:2rem;font-weight:700;letter-spacing:-.5px}.auth-form .form-container{padding:40px}.auth-links{margin-top:25px;text-align:center;font-size:.95rem;color:var(--text-light)}.auth-links a{color:var(--primary-color);text-decoration:none;font-weight:600;transition:var(--transition)}.auth-links a:hover{text-decoration:underline;color:var(--primary-dark)}.alert{margin-bottom:25px;border-radius:var(--border-radius);font-weight:500;position:relative;padding:15px 20px 15px 45px}.alert:before{position:absolute;left:15px;top:50%;transform:translateY(-50%);font-size:18px}.alert-success{background-color:#e8fff0;color:var(--secondary-dark);border:1px solid #d0f5e0}.alert-success:before{content:"✅"}.alert-error{background-color:#fff2f2;color:var(--danger-color);border:1px solid #ffdada}.alert-error:before{content:"❌"}.no-tasks{text-align:center;padding:40px 20px;background-color:#fff;border-radius:var(--border-radius-large);box-shadow:var(--box-shadow);margin-top:20px}.no-tasks p{color:var(--text-light);font-size:1.1rem;margin-bottom:20px}.form-actions{margin-top:30px;display:flex;gap:15px}details{margin-top:10px;padding:10px;background-color:#ffffff80;border-radius:var(--border-radius)}details summary{cursor:pointer;color:var(--danger-color);font-weight:500}details pre{margin-top:10px;padding:10px;background-color:#f8f8f8;border-radius:var(--border-radius);overflow-x:auto;font-size:.85rem;color:var(--text-color)}@media (max-width: 768px){.container{padding:20px}.task-item{flex-direction:column;align-items:flex-start}.task-actions{margin-top:20px;width:100%;justify-content:flex-end}.tasks-header{flex-direction:column;align-items:flex-start;gap:15px}.btn-add-task{width:100%;justify-content:center}.form-container{padding:25px}.form-actions{flex-direction:column}.form-actions .btn{width:100%;margin-bottom:10px}.task-meta{flex-direction:column;align-items:flex-start;gap:8px}}