@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700&display=swap";:root{--bg-base:#060913;--bg-surface:#0e1324;--bg-elevated:#151b2e;--text-primary:#fff;--text-secondary:#94a3b8;--text-muted:#64748b;--accent-primary:#0ea5e9;--accent-primary-hover:#38bdf8;--accent-glow:#0ea5e966;--status-success:#10b981;--status-success-bg:#10b98126;--status-warning:#f59e0b;--status-warning-bg:#f59e0b26;--status-danger:#ef4444;--status-danger-bg:#ef444426;--status-offline:#64748b;--status-offline-bg:#64748b26;--border-color:#ffffff0f;--border-focus:#0ea5e980;--idle-bg:#ffffff05;--idle-border:#ffffff14;--glass-bg:#0e1324a6;--glass-border:#ffffff14;--bg-secondary:#ffffff0f;--font-sans:"Inter", system-ui, sans-serif;--font-display:"Outfit", system-ui, sans-serif;--transition:all .3s cubic-bezier(.25, .8, .25, 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#0003}.flex-center{justify-content:center;align-items:center;display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.app-container{gap:1rem;min-height:100vh;padding:1rem;display:flex}.sidebar{background-color:var(--glass-bg);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border:1px solid var(--glass-border);border-radius:20px;flex-direction:column;flex-shrink:0;gap:1.5rem;width:250px;height:calc(100vh - 2rem);padding:1.5rem 1rem;display:flex;position:sticky;top:1rem;box-shadow:0 8px 32px #0003}.brand{font-family:var(--font-display);color:var(--text-primary);align-items:center;gap:.75rem;padding:0 .5rem;font-size:1.5rem;font-weight:700;display:flex}.brand-icon{color:var(--accent-primary)}.nav-links{flex-direction:column;gap:.5rem;display:flex}.nav-group-title{text-transform:uppercase;letter-spacing:.05em;color:#64748b;margin:1rem 0 .25rem .5rem;font-size:.75rem;font-weight:600}.nav-item{color:var(--text-secondary);transition:var(--transition);cursor:pointer;border-radius:12px;align-items:center;gap:.75rem;padding:.8rem 1rem;font-size:.95rem;font-weight:500;display:flex}.nav-item:hover{color:var(--text-primary);background-color:#ffffff08}.nav-item.active{color:var(--accent-primary);border-left:3px solid var(--accent-primary);background:linear-gradient(90deg,#0ea5e926 0%,#0ea5e900 100%);border-radius:0 12px 12px 0;padding-left:calc(1rem - 3px)}.main-content{background-color:#0000;border-radius:20px;flex-direction:column;flex:1;gap:1.5rem;width:100%;min-width:0;padding:1rem 2rem;display:flex}.page-header{margin-bottom:1rem}.page-title{background:linear-gradient(90deg,#fff,#94a3b8);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.25rem;font-size:2rem}[data-theme=light] .page-title{background:linear-gradient(90deg,#0f172a,#475569);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.page-subtitle{color:var(--text-secondary);font-size:.95rem;font-weight:400}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;display:grid}.stat-card{flex-direction:column;gap:.75rem;padding:1.25rem 1.5rem;transition:all .3s cubic-bezier(.25,.8,.25,1);display:flex;position:relative;overflow:hidden}.stat-card:before{content:"";opacity:0;background:linear-gradient(90deg,#0000,#ffffff26,#0000);height:1px;transition:opacity .3s;position:absolute;top:0;left:0;right:0}.stat-card:hover{box-shadow:0 15px 40px #0000004d, 0 0 15px 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var(--accent-glow);background-color:var(--bg-surface)}.form-control::placeholder{color:var(--text-muted);opacity:.8}.btn{cursor:pointer;transition:var(--transition);letter-spacing:.02em;border:none;border-radius:10px;justify-content:center;align-items:center;gap:.5rem;padding:.6rem 1.25rem;font-family:inherit;font-size:.95rem;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--accent-primary), var(--accent-primary-hover));color:#fff;box-shadow:0 4px 15px var(--accent-glow);border:1px solid #ffffff1a}.btn:disabled,.btn-primary:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;filter:grayscale(.5);transform:none}.btn-primary:not(:disabled):hover{box-shadow:0 8px 25px var(--accent-glow);background:linear-gradient(135deg,#38bdf8,#0284c7);transform:translateY(-2px)}.btn-secondary{background-color:var(--idle-bg);color:var(--text-primary);border:1px solid 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var(--border-color);background-color:var(--bg-elevated);justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;display:flex}.modal-header h3{margin:0;font-size:1.125rem;font-weight:600}.modal-body{padding:1.5rem;overflow-y:auto}.modal-footer{border-top:1px solid var(--border-color);background-color:var(--bg-elevated);justify-content:flex-end;gap:1rem;padding:1.25rem 1.5rem;display:flex}.port-section{background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:8px;margin-bottom:2rem;padding:1.5rem}.port-section-header{justify-content:space-between;align-items:center;margin-bottom:1.25rem;display:flex}.port-grid-8{grid-template-columns:repeat(8,1fr);gap:.5rem;display:grid}.port-grid-auto{flex-wrap:wrap;gap:.5rem;display:flex}.pon-box,.uplink-box{border:1px solid;border-radius:4px;flex-direction:column;justify-content:center;align-items:center;width:100%;min-height:60px;padding:.5rem;transition:all .2s;display:flex}.port-grid-auto .uplink-box{width:140px}.pon-box.active,.uplink-box.up{background-color:var(--status-success-bg);border-color:#10b98180;box-shadow:inset 0 0 10px #10b9811a}.pon-box.disabled,.uplink-box.down{background-color:var(--status-danger-bg);border-color:#ef444480;box-shadow:inset 0 0 10px #ef44441a}.pon-box.idle,.uplink-box.idle{background-color:var(--idle-bg);border-color:var(--idle-border)}.port-title{color:var(--text-primary);margin-bottom:.25rem;font-family:monospace;font-size:.85rem;font-weight:600}.port-subtitle{align-items:center;gap:.35rem;font-size:.75rem;font-weight:700;display:flex}.port-subtitle.success{color:var(--status-success)}.port-subtitle.danger{color:var(--status-danger)}.port-subtitle.muted{color:var(--text-secondary)}.legend-container{gap:1rem;display:flex}.legend-item{color:var(--text-secondary);align-items:center;gap:.35rem;font-size:.75rem;display:flex}.port-led{border:1px solid var(--idle-border);background-color:var(--idle-bg);border-radius:3px;width:12px;height:12px}.port-led.up,.port-led.active{background-color:var(--status-success-bg);border-color:#10b98180;box-shadow:inset 0 0 5px #10b9811a}.port-led.down,.port-led.disabled{background-color:var(--status-danger-bg);border-color:#ef444480;box-shadow:inset 0 0 5px #ef44441a}.slot-title{color:var(--text-secondary);text-transform:uppercase;align-items:center;gap:.5rem;margin-bottom:.5rem;font-size:.85rem;display:flex}.topology-container{justify-content:flex-start;align-items:center;min-height:500px;padding:2rem;font-family:inherit;display:flex;overflow:auto}.topo-node{background:var(--surface-color);border:1px solid var(--border-color);z-index:2;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;min-width:140px;padding:1rem;transition:transform .2s,box-shadow .2s;display:flex;position:relative;box-shadow:0 4px 12px #0003}.topo-node:hover{transform:translateY(-2px);box-shadow:0 6px 16px #0000004d}.topo-node.root-node{border-color:var(--accent-primary);box-shadow:0 0 20px var(--accent-glow);background:linear-gradient(145deg,#0ea5e926,#8b5cf626)}.topo-node.card-node{border-color:var(--text-secondary)}.topo-node.splitter-node{border-color:var(--accent-primary);width:40px;min-width:40px;height:40px;color:var(--accent-primary);background:#3b82f61a;border-radius:50%;padding:0}.topo-node.port-node.online{border-color:var(--status-success)}.topo-node.port-node.offline{border-color:var(--status-danger)}.topo-node.pon-node{border-color:var(--text-primary);background:linear-gradient(145deg, var(--bg-surface), #ffffff0d)}.topo-node.onu-node{flex-direction:row;justify-content:flex-start;gap:.75rem;min-width:180px;padding:.5rem 1rem}.topo-node.onu-node .topo-label{text-align:left;margin-top:0}.topo-label{text-align:center;margin-top:.5rem}.topo-branches,.topo-sub-branches{flex-direction:column;display:flex;position:relative}.topo-branches{gap:2rem;margin-top:0;margin-left:3rem}.topo-sub-branches{gap:1rem;margin-top:0;margin-left:3rem}.topo-branches:before,.topo-sub-branches:before{content:"";background:linear-gradient(90deg,#0ea5e91a,#0ea5e999);width:3rem;height:2px;position:absolute;top:50%;left:-3rem;transform:translateY(-50%)}.topo-branch{flex-direction:row;align-items:center;display:flex;position:relative}.topo-branches>.topo-branch:before,.topo-sub-branches>.topo-branch:before{content:"";background:#0ea5e966;width:2px;height:100%;position:absolute;top:0;left:-3rem;box-shadow:0 0 8px #0ea5e966}.topo-branches>.topo-branch:first-child:before,.topo-sub-branches>.topo-branch:first-child:before{height:50%;top:50%}.topo-branches>.topo-branch:last-child:before,.topo-sub-branches>.topo-branch:last-child:before{height:50%;top:0;bottom:50%}.topo-branches>.topo-branch:first-child:last-child:before,.topo-sub-branches>.topo-branch:first-child:last-child:before{display:none}.topo-connection-line{background:linear-gradient(90deg,#0ea5e966,#0ea5e91a);width:3rem;height:2px;position:absolute;top:50%;left:-3rem;transform:translateY(-50%);box-shadow:0 0 8px #0ea5e966}.onu-branches{margin-left:5rem}.onu-branches:before{width:5rem;left:-5rem}.onu-branches>.topo-branch:before{left:-5rem}.onu-branches>.topo-branch>.topo-connection-line{width:5rem;left:-5rem}.tabs-container{background-color:var(--glass-bg);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border:1px solid 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.nav-text,.sidebar.collapsed .nav-group-title{display:none}.sidebar.collapsed .nav-item{justify-content:center;padding:.6rem}.desktop-only{display:flex}.top-header{border-bottom:1px solid var(--border-color);justify-content:flex-end;align-items:center;gap:1rem;margin-bottom:.5rem;padding-bottom:.5rem;display:flex}.mobile-only{align-items:center;gap:1rem;display:none}.menu-btn,.mobile-close-btn{color:var(--text-primary);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;display:flex}.mobile-close-btn{display:none}.sidebar-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:30;background:#00000080;width:100vw;height:100vh;display:none;position:fixed;top:0;left:0}@media (width<=768px){.app-container{flex-direction:column;padding:0}.sidebar{background-color:var(--bg-surface);z-index:1000;border-radius:0;width:280px;height:100vh;position:fixed;top:0;left:0;transform:translate(-100%)}.sidebar.mobile-open{transform:translate(0);box-shadow:4px 0 24px #00000080}.top-header{flex-wrap:wrap;justify-content:flex-start;gap:.5rem;padding:1rem}.header-actions{margin-left:auto}.mobile-only{display:flex}.desktop-only{display:none}.mobile-close-btn{display:block;position:absolute;top:15px;right:15px}.sidebar-overlay{z-index:999;display:block}.main-content{border-radius:0;width:100%;padding:1rem;overflow-x:hidden}.flex-between{flex-direction:column;align-items:stretch;gap:1rem}.page-header.flex-between{flex-direction:column;align-items:flex-start}.modal-content{max-height:90vh;margin:1rem 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#0003}input:checked+.slider{background-color:#10b98133;border-color:#10b98180}input:checked+.slider:before{background-color:var(--status-success);transform:translate(22px);box-shadow:0 0 10px #10b98180}.slider.round{border-radius:34px}.slider.round:before{border-radius:50%}.settings-card{background:var(--bg-surface);border:1px solid var(--border-color);transition:var(--transition);border-radius:16px;padding:1.5rem}.settings-card:hover{border-color:var(--border-focus);box-shadow:0 8px 30px #00000026}@media print{body *{visibility:hidden}.print-container,.print-container *{visibility:visible}.print-container{width:100%;position:absolute;top:0;left:0;background:#fff!important}.voucher-grid-print{grid-template-columns:repeat(3,1fr)!important;gap:1rem!important;margin:0!important;padding:0!important;display:grid!important}.voucher-card{page-break-inside:avoid;color:#000!important;background:#fff!important;border:1px solid #000!important;border-radius:8px!important;padding:1rem!important}.no-print{display:none!important}}.print-only{display:none}@media print{body *{visibility:hidden}.print-only,.print-only *{visibility:visible}.print-only{width:100%;display:block;position:absolute;top:0;left:0}.voucher-grid{grid-template-columns:repeat(3,1fr);gap:15px;padding:20px;display:grid}.voucher-card{page-break-inside:avoid;border:2px solid #000;border-radius:8px;padding:10px;font-family:monospace;position:relative}.voucher-header{border-bottom:1px dashed #ccc;align-items:center;gap:8px;margin-bottom:10px;padding-bottom:5px;font-weight:700;display:flex}.voucher-detail{justify-content:space-between;margin-bottom:5px;display:flex}.voucher-detail .label{font-weight:400}.voucher-detail .value{font-size:1.1em;font-weight:700}.voucher-footer{color:#555;justify-content:space-between;margin-top:10px;font-size:.8em;display:flex}.footer-item{align-items:center;gap:4px;display:flex}.voucher-price{color:#fff;background:#000;border-radius:4px;padding:2px 6px;font-size:.9em;font-weight:700;position:absolute;top:10px;right:10px}}