:root{--header-height: 60px;--footer-height: 50px;--sidebar-width: 250px}body{margin:0;font-family:Arial,sans-serif;background-color:#f0f2f5;color:#333;overflow:hidden}.main-layout{display:flex;flex-direction:column;min-height:100vh}.app-header{position:fixed;top:0;left:0;width:100%;height:var(--header-height);background-color:#007bff;color:#fff;padding:0 25px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000001a;z-index:1000;box-sizing:border-box}.header-left .header-logo{color:#fff;text-decoration:none;font-size:24px;font-weight:700}.header-right{display:flex;align-items:center;gap:20px}.header-username{font-size:16px;margin-right:10px}.header-icon-group{display:flex;gap:15px}.header-icon-button{background:none;border:none;color:#fff;cursor:pointer;padding:5px;border-radius:50%;transition:background-color .2s ease}.header-icon-button:hover{background-color:#fff3}.header-icon-button svg{width:22px;height:22px}.main-content-wrapper{display:flex;flex:1;padding-top:var(--header-height);padding-bottom:var(--footer-height)}.app-sidebar{position:fixed;top:var(--header-height);left:0;width:var(--sidebar-width);height:calc(100vh - var(--header-height) - var(--footer-height));background-color:#34495e;color:#fff;padding-top:20px;box-shadow:2px 0 5px #0000001a;z-index:900;overflow-y:auto;box-sizing:border-box}.sidebar-nav{list-style:none;padding:0;margin:0}.sidebar-item{margin-bottom:5px}.sidebar-link{display:flex;align-items:center;padding:12px 25px;color:#fff;text-decoration:none;font-size:16px;transition:background-color .2s ease,color .2s ease}.sidebar-link:hover{background-color:#2c3e50}.sidebar-link.active{background-color:#0056b3;font-weight:700}.sidebar-link svg{margin-right:10px}.main-content{flex-grow:1;margin-left:var(--sidebar-width);padding:25px;overflow-y:auto;background-color:#f0f2f5;box-sizing:border-box}.app-footer{position:fixed;bottom:0;left:0;width:100%;height:var(--footer-height);background-color:#34495e;color:#fff;text-align:center;padding:15px 25px;font-size:14px;box-shadow:0 -2px 4px #0000001a;z-index:1000;box-sizing:border-box}@media (max-width: 768px){:root{--sidebar-width: 0px;--header-height: 80px}.app-header{flex-direction:column;align-items:flex-start;padding:10px;height:auto}.header-right{width:100%;justify-content:space-between;margin-top:10px;padding-top:10px;border-top:1px solid rgba(255,255,255,.2)}.header-username{margin-right:0}.app-sidebar{display:none}.main-content-wrapper{padding-top:var(--header-height);padding-bottom:var(--footer-height)}.main-content{margin-left:0;padding:15px}}@media (max-width: 768px){.main-content{margin-left:0}}body{margin:0;font-family:Arial,sans-serif;background-color:#f4f7f6;color:#333}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:#f4f7f6;padding:20px;box-sizing:border-box}.auth-card{background-color:#fff;padding:30px;border-radius:8px;box-shadow:0 4px 12px #0000001a;width:100%;max-width:400px;box-sizing:border-box}.auth-title{font-size:28px;font-weight:700;text-align:center;color:#333;margin-bottom:25px}.form-group{margin-bottom:15px}.form-group label{display:block;font-size:14px;font-weight:600;color:#555;margin-bottom:8px}.form-group input{width:calc(100% - 20px);padding:10px;border:1px solid #ddd;border-radius:5px;font-size:16px;transition:border-color .2s}.form-group input:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 2px #007bff40}.auth-button{width:100%;padding:12px;background-color:#007bff;color:#fff;border:none;border-radius:5px;font-size:18px;font-weight:600;cursor:pointer;transition:background-color .2s ease}.auth-button:hover{background-color:#0056b3}.auth-button:focus{outline:none;box-shadow:0 0 0 3px #007bff80}.auth-links-container{text-align:right;margin-bottom:15px}.auth-link{color:#007bff;text-decoration:none;font-size:14px;transition:color .2s ease}.auth-link:hover{text-decoration:underline;color:#0056b3}.auth-text-center{text-align:center;font-size:14px;color:#666;margin-top:20px}.auth-error-message{color:#dc3545;text-align:center;margin-bottom:15px;font-size:14px}.auth-success-message{color:#28a745;text-align:center;margin-bottom:15px;font-size:14px}@media (max-width: 500px){.auth-card{padding:20px;margin:10px}.auth-title{font-size:24px}}.dashboard-page{padding:25px;background-color:#fff;border-radius:8px;box-shadow:0 2px 10px #0000000d}.dashboard-loading,.dashboard-error{text-align:center;padding:20px;font-size:16px;color:#555}.dashboard-error{color:#dc3545}.dashboard-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:30px}.stat-card{background-color:#f8f9fa;padding:20px;border-radius:8px;box-shadow:0 2px 5px #0000000d;text-align:center;border-left:5px solid}.stat-card h3{font-size:18px;color:#555;margin-bottom:10px}.stat-card p{font-size:32px;font-weight:700;color:#007bff;margin:0}.total-tickets{border-left-color:#007bff}.total-tickets p{color:#007bff}.open-tickets{border-left-color:#ffc107}.open-tickets p{color:#ffc107}.closed-tickets{border-left-color:#28a745}.closed-tickets p{color:#28a745}.pending-tickets{border-left-color:#6c757d}.pending-tickets p{color:#6c757d}.dashboard-section{margin-top:30px}.section-title{font-size:24px;color:#333;margin-bottom:20px;border-bottom:1px solid #eee;padding-bottom:10px}.recent-tickets-list{list-style:none;padding:0;margin:0}.recent-ticket-item{background-color:#fff;border:1px solid #eee;border-radius:5px;padding:15px 20px;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;font-size:15px;color:#444}.recent-ticket-item .ticket-id{font-weight:700;color:#007bff;min-width:80px}.recent-ticket-item .ticket-subject{flex-grow:1;margin:0 15px}.recent-ticket-item .ticket-status{padding:5px 10px;border-radius:4px;font-weight:700;font-size:13px;min-width:80px;text-align:center}.recent-ticket-item .ticket-status.open{background-color:#fff3cd;color:#856404}.recent-ticket-item .ticket-status.closed{background-color:#d4edda;color:#155724}.recent-ticket-item .ticket-status.pending{background-color:#e2e3e5;color:#495057}@media (max-width: 768px){.dashboard-stats-grid{grid-template-columns:1fr}}@media (max-width: 500px){.dashboard-page{padding:15px}.page-title{font-size:24px}.stat-card p{font-size:28px}.recent-ticket-item{flex-direction:column;align-items:flex-start;gap:5px}.recent-ticket-item .ticket-subject,.recent-ticket-item .ticket-status,.recent-ticket-item .ticket-id{width:100%;margin:0;text-align:left}}.new-ticket-page,.edit-ticket-page{padding:25px;background-color:#fff;border-radius:8px;box-shadow:0 2px 10px #0000000d}.ticket-form{display:flex;flex-direction:column;gap:15px;max-width:600px;margin:0 auto}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#555;font-size:15px}.form-group input[type=text],.form-group input[type=email],.form-group input[type=password],.form-group textarea,.form-group select{width:calc(100% - 22px);padding:10px;border:1px solid #ddd;border-radius:5px;font-size:16px;transition:border-color .2s,box-shadow .2s}.form-group textarea{resize:vertical;min-height:100px}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 2px #007bff40}.submit-button{background-color:#007bff;color:#fff;padding:12px 20px;border:none;border-radius:5px;font-size:18px;font-weight:600;cursor:pointer;transition:background-color .2s ease;align-self:flex-start}.submit-button:hover{background-color:#0056b3}.submit-button:disabled{background-color:#ccc;cursor:not-allowed}.form-message{padding:10px 15px;border-radius:5px;margin-bottom:15px;font-size:15px;text-align:center}.form-message.loading{background-color:#e0f2f7;color:#007bff}.form-message.error{background-color:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.form-message.success{background-color:#d4edda;color:#155724;border:1px solid #c3e6cb}@media (max-width: 600px){.ticket-form{margin:0}}.modal-overlay{position:fixed;inset:0;background-color:#0009;display:flex;justify-content:center;align-items:center;z-index:2000;padding:20px;box-sizing:border-box}.modal-content{background-color:#fff;padding:30px;border-radius:8px;box-shadow:0 5px 15px #0000004d;max-width:600px;width:100%;position:relative;max-height:90vh;overflow-y:auto}.modal-close-button{position:absolute;top:15px;right:15px;background:none;border:none;font-size:28px;cursor:pointer;color:#888;line-height:1;transition:color .2s ease}.modal-close-button:hover{color:#333}.ticket-detail-header{border-bottom:1px solid #eee;padding-bottom:15px;margin-bottom:20px}.ticket-detail-header h2{margin:0;font-size:26px;color:#333}.ticket-detail-header p{margin:5px 0 0;font-size:14px;color:#777}.ticket-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px 30px;margin-bottom:20px}.detail-item{font-size:15px}.detail-item strong{display:block;color:#555;font-size:14px;margin-bottom:5px}.detail-item span{color:#333;font-weight:400}.ticket-description-section h3{font-size:18px;color:#333;margin-bottom:10px;border-bottom:1px dashed #eee;padding-bottom:5px}.ticket-description-section p{font-size:15px;line-height:1.6;color:#444;white-space:pre-wrap;word-wrap:break-word}@media (max-width: 650px){.modal-content{padding:20px;margin:10px}.ticket-detail-grid{grid-template-columns:1fr;gap:10px}.ticket-detail-header h2{font-size:22px}.modal-close-button{font-size:24px;top:10px;right:10px}}.my-tickets-page{padding:25px;background-color:#fff;border-radius:8px;box-shadow:0 2px 10px #0000000d}.page-title{font-size:28px;color:#333;margin-bottom:25px;border-bottom:2px solid #eee;padding-bottom:15px}.tickets-list-loading,.tickets-list-error{text-align:center;padding:20px;font-size:16px;color:#555}.tickets-list-error{color:#dc3545}.no-tickets-message{text-align:center;font-size:18px;color:#666;padding:40px;border:1px dashed #ddd;border-radius:8px;margin-top:30px}.no-tickets-message .create-ticket-link{color:#007bff;text-decoration:none;font-weight:700}.no-tickets-message .create-ticket-link:hover{text-decoration:underline}.tickets-table-container{overflow-x:auto;margin-top:20px}.tickets-table{width:100%;border-collapse:collapse;min-width:700px}.tickets-table th,.tickets-table td{padding:12px 15px;text-align:left;border-bottom:1px solid #eee;font-size:15px}.tickets-table th{background-color:#f8f9fa;color:#555;font-weight:600;text-transform:uppercase;font-size:14px}.tickets-table tr:hover{background-color:#f0f2f5}.ticket-status-badge{padding:5px 10px;border-radius:4px;font-weight:700;font-size:13px;display:inline-block}.ticket-status-badge.open{background-color:#fff3cd;color:#856404}.ticket-status-badge.closed{background-color:#d4edda;color:#155724}.ticket-status-badge.pending{background-color:#e2e3e5;color:#495057}.ticket-actions{white-space:nowrap}.action-button{background-color:#007bff;color:#fff;padding:6px 12px;border:none;border-radius:4px;cursor:pointer;font-size:13px;margin-right:5px;transition:background-color .2s ease}.action-button.view{background-color:#17a2b8}.action-button.view:hover{background-color:#138496}.action-button.close{background-color:#28a745}.action-button.close:hover{background-color:#218838}.action-button.delete{background-color:#dc3545}.action-button.delete:hover{background-color:#c82333}