:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-card: #1e2a45;--bg-input: #0f1a30;--accent: #0f3460;--accent-hover: #1a4a7a;--highlight: #e94560;--highlight-hover: #d63050;--text: #eeeeee;--text-secondary: #aaaaaa;--text-muted: #666666;--border: #2a3a55;--border-light: #3a4a65;--success: #4caf50;--success-bg: rgba(76, 175, 80, .15);--warning: #ff9800;--warning-bg: rgba(255, 152, 0, .15);--danger: #f44336;--danger-bg: rgba(244, 67, 54, .15);--info: #2196f3;--info-bg: rgba(33, 150, 243, .15);--sidebar-width: 240px;--header-height: 56px;--radius: 8px;--radius-sm: 4px;--shadow: 0 2px 8px rgba(0, 0, 0, .3);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .4);--transition: .2s ease}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-primary);color:var(--text);line-height:1.5;min-height:100vh}a{color:var(--info);text-decoration:none}a:hover{text-decoration:underline}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition)}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--border);font-size:1.15rem;font-weight:700;color:var(--text);letter-spacing:.02em}.sidebar-brand svg{flex-shrink:0}.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto}.sidebar-section-label{padding:16px 20px 6px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted)}.sidebar-link{display:flex;align-items:center;gap:10px;padding:10px 20px;color:var(--text-secondary);text-decoration:none;font-size:.93rem;transition:background var(--transition),color var(--transition);border-left:3px solid transparent}.sidebar-link:hover{background:#ffffff0d;color:var(--text);text-decoration:none}.sidebar-link.active{background:#0f346066;color:var(--highlight);border-left-color:var(--highlight)}.sidebar-link svg{width:18px;height:18px;flex-shrink:0;opacity:.7}.sidebar-link.active svg{opacity:1}.main-wrapper{flex:1;margin-left:var(--sidebar-width);display:flex;flex-direction:column;min-height:100vh}.main-header{height:var(--header-height);background:var(--bg-secondary);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:50}.header-left{display:flex;align-items:center;gap:12px}.menu-toggle{display:none;background:none;border:none;color:var(--text);cursor:pointer;padding:4px}.header-right{display:flex;align-items:center;gap:16px}.header-user{display:flex;align-items:center;gap:8px;color:var(--text-secondary);font-size:.9rem}.header-user-role{background:var(--accent);padding:2px 8px;border-radius:10px;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}.main-content{flex:1;padding:24px;max-width:1400px;width:100%}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-title{font-size:1.05rem;font-weight:600}.summary-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.summary-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:4px}.summary-card-label{font-size:.8rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.summary-card-value{font-size:1.8rem;font-weight:700}.summary-card-value.success{color:var(--success)}.summary-card-value.danger{color:var(--danger)}.summary-card-value.warning{color:var(--warning)}.summary-card-value.info{color:var(--info)}.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.device-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;cursor:pointer;transition:border-color var(--transition),box-shadow var(--transition)}.device-card:hover{border-color:var(--accent-hover);box-shadow:var(--shadow-lg)}.device-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.device-card-serial{font-family:Courier 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var(--border);white-space:nowrap;-webkit-user-select:none;user-select:none}th.sortable{cursor:pointer}th.sortable:hover{color:var(--text)}th .sort-arrow{margin-left:4px;font-size:.7rem}td{padding:10px 14px;border-bottom:1px solid var(--border);font-size:.9rem;vertical-align:middle}tr:last-child td{border-bottom:none}tr:hover td{background:#ffffff05}tr.clickable{cursor:pointer}tr.clickable:hover td{background:#0f346033}.table-empty{text-align:center;padding:40px 20px;color:var(--text-muted)}.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:12px;font-size:.78rem;font-weight:600;white-space:nowrap}.badge-dot{width:7px;height:7px;border-radius:50%}.badge-online{background:var(--success-bg);color:var(--success)}.badge-online .badge-dot{background:var(--success)}.badge-offline{background:#ffffff0f;color:var(--text-muted)}.badge-offline .badge-dot{background:var(--text-muted)}.badge-pending{background:var(--warning-bg);color:var(--warning)}.badge-pending .badge-dot{background:var(--warning)}.badge-sent{background:var(--info-bg);color:var(--info)}.badge-sent .badge-dot{background:var(--info)}.badge-completed{background:var(--success-bg);color:var(--success)}.badge-completed .badge-dot{background:var(--success)}.badge-failed{background:var(--danger-bg);color:var(--danger)}.badge-failed .badge-dot{background:var(--danger)}.badge-cancelled{background:#ffffff0f;color:var(--text-muted)}.badge-cancelled .badge-dot{background:var(--text-muted)}.priority-high{color:var(--danger)}.priority-medium{color:var(--warning)}.priority-low{color:var(--info)}.priority-info{color:var(--text-secondary)}button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--accent);color:var(--text);font-size:.9rem;font-weight:500;cursor:pointer;transition:background var(--transition),border-color 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var(--border);border-radius:var(--radius-sm);background:var(--bg-input);color:var(--text);font-size:.9rem;font-family:inherit;transition:border-color var(--transition)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--highlight)}.form-input::placeholder{color:var(--text-muted)}.form-textarea{resize:vertical;min-height:80px}.form-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23aaa' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:32px}.form-row{display:flex;gap:16px}.form-row 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var(--transition)}.tab:hover{color:var(--text);background:none}.tab.active{color:var(--highlight);border-bottom-color:var(--highlight);background:none}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:500px;max-height:80vh;overflow-y:auto}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-title{font-size:1.1rem;font-weight:600}.modal-close{background:none;border:none;color:var(--text-secondary);font-size:1.2rem;cursor:pointer;padding:4px}.modal-close:hover{color:var(--text);background:none}.modal-body{padding:20px}.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 20px;border-top:1px solid var(--border)}.spinner-container{display:flex;align-items:center;justify-content:center;padding:60px 20px}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--highlight);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--text-secondary);margin-left:12px;font-size:.9rem}.toast-container{position:fixed;top:16px;right:16px;z-index:300;display:flex;flex-direction:column;gap:8px}.toast{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;min-width:280px;max-width:400px;animation:slideIn .3s ease}.toast.toast-success{border-left:3px solid var(--success)}.toast.toast-error{border-left:3px solid var(--danger)}.toast.toast-warning{border-left:3px solid var(--warning)}.toast.toast-info{border-left:3px solid var(--info)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.chart-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.chart-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.time-range-selector{display:flex;gap:4px}.time-range-btn{padding:4px 12px;font-size:.8rem;border-radius:12px;background:transparent;border:1px solid var(--border);color:var(--text-secondary)}.time-range-btn:hover{background:#ffffff0d}.time-range-btn.active{background:var(--accent);border-color:var(--accent);color:var(--text)}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-primary)}.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:40px;width:100%;max-width:400px}.login-brand{text-align:center;margin-bottom:32px}.login-brand h1{font-size:1.5rem;font-weight:700;margin-top:12px}.login-brand p{color:var(--text-secondary);font-size:.9rem;margin-top:4px}.login-error{background:var(--danger-bg);border:1px solid var(--danger);border-radius:var(--radius-sm);padding:10px 14px;margin-bottom:16px;color:var(--danger);font-size:.85rem}.detail-header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px;flex-wrap:wrap}.detail-title-group{display:flex;flex-direction:column;gap:4px}.detail-serial{font-family:Courier 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.form-select{width:100%;min-width:0}.toolbar-right{margin-left:0}.detail-header{flex-direction:column}}@media (max-width: 600px){.summary-cards{grid-template-columns:1fr}.page-header{flex-direction:column;align-items:flex-start}.tabs{overflow-x:auto}}.recharts-cartesian-grid-horizontal line,.recharts-cartesian-grid-vertical line{stroke:var(--border)}.recharts-text{fill:var(--text-secondary);font-size:.75rem}.recharts-legend-item-text{color:var(--text-secondary)!important;font-size:.8rem}.recharts-tooltip-wrapper .recharts-default-tooltip{background:var(--bg-card)!important;border:1px solid var(--border)!important;border-radius:var(--radius-sm)!important}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}