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var(--nc-border);box-shadow:var(--nc-shadow);border-radius:999px;gap:2px;margin-bottom:20px;padding:4px;display:inline-flex}.nc-tabs button{color:var(--nc-muted);cursor:pointer;background:0 0;border:none;border-radius:999px;min-height:44px;padding:10px 22px;font-family:inherit;font-size:14px;font-weight:600;transition:background .15s,color .15s}.nc-tabs button:hover{color:var(--nc-ink)}.nc-tabs button.is-active{background:var(--nc-blue);color:#fff}.nc-field{flex-direction:column;gap:6px;font-size:14px;font-weight:600;display:flex}.nc-ptype{grid-template-columns:1fr 1fr;gap:10px;display:grid}@media (max-width:560px){.nc-ptype{grid-template-columns:1fr}}.nc-ptype button{text-align:left;background:var(--nc-card);border:2px solid var(--nc-border);cursor:pointer;border-radius:14px;flex-direction:column;align-items:flex-start;gap:2px;min-height:64px;padding:12px 40px 12px 14px;font-family:inherit;transition:border-color .15s,background .15s,box-shadow 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var(--d-accent);outline-offset:2px}.nv-card-menu-wrap{flex-shrink:0;position:relative}.nv-card-menu-btn{background:var(--d-btn);border:1px solid var(--d-line);width:38px;height:38px;color:var(--d-text-dim);cursor:pointer;border-radius:9px;justify-content:center;align-items:center;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.nv-card-menu-btn:hover{background:var(--d-btn-hover);border-color:var(--d-line-strong);color:var(--d-text-strong)}.nv-card-menu-btn:focus-visible{outline:2px solid var(--d-accent);outline-offset:2px}.nv-card-menu{background:var(--d-surface);border:1px solid var(--d-line);z-index:50;border-radius:10px;min-width:168px;padding:6px;animation:.15s ease-out nv-dash-menu-in;position:absolute;bottom:calc(100% + 8px);right:0;box-shadow:0 16px 40px #0000008c}.nv-card-menu button{width:100%;color:var(--d-text-dim);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:7px;align-items:center;gap:8px;min-height:38px;padding:9px 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.nv-step.is-done .nv-step-dot{color:#fff;background:#161616}.nv-dash-theme{flex-shrink:0;position:relative}.nv-dash-theme-btn{background:var(--d-btn);border:1px solid var(--d-line);width:40px;height:40px;color:var(--d-text-dim);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;transition:background .15s,color .15s,border-color .15s;display:inline-flex}.nv-dash-theme-btn:hover{background:var(--d-btn-hover);color:var(--d-text)}.nv-dash-theme-btn:focus-visible{outline:2px solid var(--d-accent);outline-offset:2px}.nv-dash-theme-pop{background:var(--d-surface);border:1px solid var(--d-line);z-index:30;border-radius:12px;min-width:190px;padding:6px;animation:.15s ease-out nv-dash-menu-in;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 16px 40px #00000040}.nv-dash-theme-title{letter-spacing:.04em;text-transform:uppercase;color:var(--d-muted);padding:8px 12px 6px;font-size:12px;font-weight:700}.nv-dash-theme-opt{width:100%;color:var(--d-text-dim);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;min-height:40px;padding:9px 12px;font-family:inherit;font-size:13.5px;font-weight:600;display:flex}.nv-dash-theme-opt:hover{background:color-mix(in srgb, var(--d-text) 6%, transparent);color:var(--d-text)}.nv-dash-theme-opt.is-active{color:var(--d-text-strong);background:color-mix(in srgb, var(--d-accent) 12%, transparent)}.nv-dash-theme-dot{border:1px solid #00000026;border-radius:50%;flex-shrink:0;width:16px;height:16px}.nv-dash-theme-check{color:var(--d-accent);margin-left:auto;display:inline-flex}@media (prefers-reduced-motion:reduce){.nv-dash-theme-pop{animation:none}}.nv-admin-body{margin-top:20px}.nv-admin-brand{align-items:center;gap:10px;display:inline-flex}.nv-admin-sub{color:var(--nv-muted);margin:6px 0 0;font-size:14px}.nv-admin-tabs{background:var(--nv1);border:1px solid var(--nv-border);border-radius:14px;flex-wrap:wrap;gap:6px;width:-moz-fit-content;width:fit-content;max-width:100%;margin-top:18px;padding:6px;display:flex}.nv-admin-tabs button{color:var(--nv-muted);font:600 13.5px/1 var(--nv-sans);cursor:pointer;min-height:44px;transition:color .18s var(--nv-ease), background .18s var(--nv-ease), border-color .18s var(--nv-ease), transform .12s var(--nv-ease);background:0 0;border:1px solid #0000;border-radius:10px;align-items:center;gap:8px;padding:10px 16px;display:inline-flex}.nv-admin-tabs button:hover{color:var(--nv-text);background:var(--nv3)}.nv-admin-tabs button:active{transform:scale(.97)}.nv-admin-tabs button.is-active{color:#0b0f1a;background:linear-gradient(180deg, var(--nv-amber2), var(--nv-amber));box-shadow:0 6px 18px #f59e0b59}.nv-admin-tabs button svg{flex:none;width:16px;height:16px}.nv-admin-cards{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-bottom:24px;display:grid}.nv-admin-card{background:linear-gradient(180deg, var(--nv3), var(--nv2));border:1px solid var(--nv-border);transition:transform .18s var(--nv-ease), border-color .18s var(--nv-ease), box-shadow .18s var(--nv-ease);border-radius:14px;align-items:center;gap:14px;padding:16px;display:flex;position:relative;overflow:hidden}.nv-admin-card:before{content:"";background:linear-gradient(90deg, transparent, var(--nv-amber), transparent);opacity:0;height:2px;transition:opacity .2s var(--nv-ease);position:absolute;inset:0 0 auto}.nv-admin-card:hover{border-color:var(--nv-border-strong);transform:translateY(-2px);box-shadow:0 12px 28px #0006}.nv-admin-card:hover:before{opacity:1}.nv-admin-ico{border:1px solid var(--nv-border);border-radius:12px;flex:none;place-items:center;width:42px;height:42px;display:grid}.nv-admin-ico svg{width:20px;height:20px}.tint-amber{background:var(--nv-amber-dim);color:var(--nv-amber2)}.tint-blue{color:#7db8ff;background:#3b82f624}.tint-green{color:#6fdc9e;background:#22c55e24}.tint-red{color:#ff8f8f;background:#ef444424}.tint-slate{color:#b6c2d2;background:#94a3b824}.tint-violet{color:#c4b5fd;background:#a78bfa24}.nv-admin-card-value{font-variant-numeric:tabular-nums;color:var(--nv-text);font-size:26px;font-weight:700;line-height:1.1}.nv-admin-card-label{color:var(--nv-muted);margin-top:3px;font-size:12.5px}.nv-admin-recent{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;display:grid}.nv-admin-recent section{background:linear-gradient(180deg, var(--nv3), var(--nv2));border:1px solid var(--nv-border);border-radius:14px;padding:18px}.nv-admin-recent h3{align-items:center;gap:8px;margin:0 0 14px;font-size:14px;font-weight:700;display:flex}.nv-admin-recent h3 svg{width:16px;height:16px;color:var(--nv-amber2)}.nv-admin-timeline{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.nv-admin-timeline li{padding:0 0 14px 24px;font-size:13.5px;position:relative}.nv-admin-timeline li:last-child{padding-bottom:0}.nv-admin-timeline li:before{content:"";background:var(--nv-border);width:2px;position:absolute;top:16px;bottom:-2px;left:6px}.nv-admin-timeline li:last-child:before{display:none}.nv-admin-timeline li:after{content:"";background:var(--nv2);border:2px solid var(--nv-amber);border-radius:50%;width:10px;height:10px;position:absolute;top:5px;left:2px}.nv-admin-timeline .nv-muted{margin-top:2px;font-size:12.5px;display:block}.nv-admin-filters{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.nv-admin-search{flex:1;min-width:220px;position:relative}.nv-admin-search svg{width:16px;height:16px;color:var(--nv-faint);pointer-events:none;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.nv-admin-search input{background:var(--nv2);border:1px solid var(--nv-border);width:100%;color:var(--nv-text);font:400 14px var(--nv-sans);transition:border-color .18s var(--nv-ease), box-shadow .18s var(--nv-ease);border-radius:10px;padding:10px 14px 10px 38px}.nv-admin-search input::placeholder{color:var(--nv-muted)}.nv-admin-search input:focus{border-color:var(--nv-amber);outline:none;box-shadow:0 0 0 3px #f59e0b2e}.nv-admin-select{background:var(--nv2);border:1px solid var(--nv-border);color:var(--nv-text);font:500 13.5px var(--nv-sans);cursor:pointer;transition:border-color .18s var(--nv-ease);border-radius:10px;padding:10px 12px}.nv-admin-select:focus{border-color:var(--nv-amber);outline:none;box-shadow:0 0 0 3px #f59e0b2e}.nv-admin-tablewrap{background:linear-gradient(180deg, var(--nv3), var(--nv2));border:1px solid var(--nv-border);border-radius:14px;overflow-x:auto}.nv-table{border-collapse:collapse;width:100%;min-width:620px;font-size:14px}.nv-table th,.nv-table td{text-align:left;border-bottom:1px solid var(--nv-border);padding:12px 16px}.nv-table thead th{background:var(--nv1);color:var(--nv-muted);text-transform:uppercase;letter-spacing:.8px;white-space:nowrap;font-size:11px;font-weight:700;position:sticky;top:0}.nv-table tbody tr{transition:background .15s var(--nv-ease)}.nv-table tbody tr:hover{background:#94a3b80f}.nv-table tbody tr:last-child td{border-bottom:none}.nv-table tr.is-dim td{opacity:.55}.nv-table code,.nv-code{background:var(--nv1);border:1px solid var(--nv-border);font-size:12.5px;font-family:var(--nv-mono);color:var(--nv-amber2);border-radius:6px;padding:2px 8px}.nv-admin-usercell{align-items:center;gap:10px;min-width:0;display:flex}.nv-admin-avatar{width:34px;height:34px;font:700 13px var(--nv-sans);color:#0b0f1a;background:linear-gradient(135deg, var(--nv-amber2), var(--nv-amber));border-radius:50%;flex:none;place-items:center;display:grid}.nv-admin-avatar.is-off{background:var(--nv4);color:var(--nv-muted)}.nv-abadge{white-space:nowrap;border:1px solid #0000;border-radius:999px;align-items:center;gap:6px;padding:3px 11px;font-size:12px;font-weight:600;display:inline-flex}.nv-abadge-personal{color:#b6c2d2;background:#94a3b81f;border-color:#94a3b840}.nv-abadge-teacher{color:#7db8ff;background:#3b82f61f;border-color:#3b82f64d}.nv-abadge-student{color:#6fdc9e;background:#22c55e1f;border-color:#22c55e4d}.nv-abadge-admin{background:var(--nv-amber-dim);color:var(--nv-amber2);border-color:#f59e0b59}.nv-pill{align-items:center;gap:6px;font-size:12.5px;font-weight:600;display:inline-flex}.nv-pill:before{content:"";background:currentColor;border-radius:50%;width:8px;height:8px}.nv-pill-on{color:#6fdc9e}.nv-pill-off{color:#ff8f8f}.nv-admin-you{color:var(--nv-muted);font-size:12.5px}.nv-admin-pager{justify-content:center;align-items:center;gap:14px;margin-top:16px;font-size:13px;display:flex}.nv-modal-lg{max-width:660px}.nv-modal h4{color:var(--nv-muted);text-transform:uppercase;letter-spacing:.8px;margin:20px 0 10px;font-size:12px;font-weight:700}.nv-modal-head{align-items:center;gap:12px;margin-bottom:4px;display:flex}.nv-modal-head h3{margin:0;font-size:18px}.nv-modal-ico{border-radius:12px;flex:none;place-items:center;width:40px;height:40px;display:grid}.nv-modal-ico svg{width:20px;height:20px}.nv-admin-list{flex-direction:column;gap:6px;margin:0;padding:0;font-size:14px;list-style:none;display:flex}.nv-admin-actions{border-top:1px solid var(--nv-border);flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;padding-top:18px;display:flex}.nv-admin-role{color:var(--nv-muted);align-items:center;gap:8px;font-size:13.5px;display:flex}.nv-admin-password{background:var(--nv1);border:1px dashed var(--nv-amber);font-family:var(--nv-mono);letter-spacing:1px;text-align:center;-webkit-user-select:all;user-select:all;color:var(--nv-amber2);border-radius:10px;margin:14px 0;padding:16px;font-size:20px}.nv-admin-thumb{object-fit:cover;border:1px solid var(--nv-border-strong);border-radius:8px;width:76px;height:50px;display:block}.nv-admin-like{font-variant-numeric:tabular-nums;align-items:center;gap:6px;display:inline-flex}.nv-admin-like svg{color:#ff8f8f;width:14px;height:14px}.nv-admin-empty{text-align:center;color:var(--nv-muted);background:linear-gradient(180deg, var(--nv3), var(--nv2));border:1px dashed var(--nv-border-strong);border-radius:14px;padding:48px 20px;font-size:14px}.nv-admin-empty svg{width:36px;height:36px;color:var(--nv-faint);margin-bottom:10px}.nv-admin-empty p{margin:0}@media (max-width:720px){.nv-admin-tabs{width:100%}.nv-admin-tabs button{flex:1;justify-content:center;padding:10px 8px;font-size:12.5px}.nv-admin-tabs button svg{display:none}.nv-admin-cards{grid-template-columns:repeat(2,1fr)}.nv-admin-card{gap:10px;padding:12px}.nv-admin-ico{width:36px;height:36px}.nv-admin-card-value{font-size:22px}}@media (prefers-reduced-motion:reduce){.nv-admin-card,.nv-admin-tabs button,.nv-table tbody tr{transition:none}.nv-admin-card:hover{transform:none}}.nv-teacher-card{background:#1a2340;border:1px solid #2a3a5f;border-radius:12px;margin-bottom:14px;padding:16px 18px}.nv-teacher-card.is-pending{border-left:4px solid #fbbf24}.nv-teacher-card.is-approved{border-left:4px solid #22c55e}.nv-teacher-card.is-rejected{border-left:4px solid #ef4444}.nv-teacher-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.nv-teacher-head strong{color:#fff;font-size:15px}.nv-teacher-sub{color:#8a97b0;margin-top:2px;font-size:12px;display:block}.nv-teacher-score{flex-shrink:0;font-size:20px;font-weight:700}.nv-teacher-ai{color:#b8c4d8;margin:10px 0 4px;font-size:13px;font-style:italic}.nv-teacher-flags{color:#fbbf24;margin:4px 0 8px;padding:0;font-size:13px;list-style:none}.nv-teacher-flags li{margin:2px 0}.nv-teacher-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px;display:flex}.nv-teacher-note{color:#fff;background:#0f1830;border:1px solid #2a3a5f;border-radius:8px;flex:1;min-width:160px;padding:8px 10px;font-family:inherit;font-size:13px}.nv2-landing{--nv2-bg:#fff;--nv2-bg-2:#ecf1f1;--nv2-card:#fff;--nv2-card-2:#f7f9f9;--nv2-line:#2c353a24;--nv2-accent:#008184;--nv2-accent-deep:#005c5f;--nv2-accent-soft:#0081841a;--nv2-text:#2c353a;--nv2-muted:#5d6a6b;--nv2-mono:"JetBrains Mono", ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;--nv2-sans:"Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--nv2-r:18px;background:var(--nv2-bg);min-height:100vh;color:var(--nv2-text);font-family:var(--nv2-sans);font-size:16px;line-height:1.6;overflow-x:clip}.nv2-landing button{cursor:pointer;font-family:inherit}.nv2-landing :focus-visible{outline:2px solid var(--nv2-accent);outline-offset:3px;border-radius:6px}.nv2-wrap{max-width:1160px;margin:0 auto;padding:0 24px}.nv2-wrap-narrow{max-width:760px}.nv2-landing h2{letter-spacing:-.02em;margin:0 0 12px;font-size:clamp(1.7rem,3.4vw,2.5rem);font-weight:800;line-height:1.2}.nv2-hl{color:var(--nv2-accent);background:linear-gradient(#0000 62%,#00818440 62%)}.nv2-section-sub{color:var(--nv2-muted);max-width:640px;margin:0 0 48px;font-size:1.06rem}.nv2-section{padding:120px 0}.nv2-landing h1,.nv2-landing h2{text-wrap:balance}.nv2-section-alt{background:var(--nv2-bg-2);border-top:1px solid var(--nv2-line);border-bottom:1px solid var(--nv2-line)}.nv2-btn{white-space:nowrap;border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:10px;min-height:44px;padding:12px 22px;font-size:.98rem;font-weight:700;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s;display:inline-flex}.nv2-btn:active{transform:translateY(1px)scale(.99)}.nv2-btn-lg{min-height:52px;padding:14px 28px;font-size:1.02rem}.nv2-btn-primary{background:var(--nv2-accent);color:#fff;border-radius:999px;box-shadow:0 10px 26px #00818452}.nv2-btn-primary:hover{background:var(--nv2-accent-deep);transform:translateY(-1px);box-shadow:0 14px 32px #00818466}.nv2-btn-outline{color:var(--nv2-text);background:#fff;border-color:#00818473;border-radius:999px}.nv2-btn-outline:hover{border-color:var(--nv2-accent);background:#00818412}.nv2-btn-ghost{color:var(--nv2-text);background:0 0}.nv2-btn-ghost:hover{background:#2c353a0f}.nv2-nav{z-index:50;border-bottom:1px solid #0000;transition:background .25s,border-color .25s,-webkit-backdrop-filter .25s,backdrop-filter .25s;position:fixed;inset:0 0 auto}.nv2-nav-scrolled{-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--nv2-line);background:#ffffffe0}.nv2-nav-inner{align-items:center;gap:28px;max-width:1160px;margin:0 auto;padding:14px 24px;display:flex}.nv2-brand{color:#2c353a;background:0 0;border:0;align-items:center;padding:6px 2px;display:inline-flex}.nv2-landing .nv-brand{color:#2c353a}.nv2-brand .nv-brand 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.nv2-code-hi,.nv2-demo.phase-lo .nv2-code-lo{background:#f59e0b29;border-color:#f59e0b80}.nv2-demo-foot{border-top:1px solid var(--nv2-line);padding:10px 16px}.nv2-foot-note{color:#8fa0bd;font-size:.78rem}.nv2-foot-note strong{color:var(--nv2-muted)}.nv2-marquee{border-top:1px solid var(--nv2-line);border-bottom:1px solid var(--nv2-line);background:var(--nv2-bg-2);padding:16px 0;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,#0000,#000 8% 92%,#0000);mask-image:linear-gradient(90deg,#0000,#000 8% 92%,#0000)}.nv2-marquee-track{gap:44px;width:max-content;animation:32s linear infinite nv2-scroll;display:flex}.nv2-marquee:hover .nv2-marquee-track{animation-play-state:paused}@keyframes nv2-scroll{to{transform:translate(-50%)}}.nv2-marquee-item{font-family:var(--nv2-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--nv2-muted);white-space:nowrap;align-items:center;gap:44px;font-size:.85rem;display:inline-flex}.nv2-mdot{background:var(--nv2-accent);border-radius:50%;flex:none;width:7px;height:7px;display:inline-block}.nv2-bento{grid-template-columns:repeat(6,1fr);gap:20px;display:grid}@media (min-width:1025px){.nv2-bento>.nv2-card:first-child{grid-column:span 4}.nv2-bento>.nv2-card:nth-child(n+2){grid-column:span 2}}.nv2-card{background:var(--nv2-card);border:1px solid var(--nv2-line);border-radius:var(--nv2-r);transition:transform .2s,border-color .2s,box-shadow .2s;overflow:hidden}.nv2-card:hover{border-color:#00818473;transform:translateY(-4px);box-shadow:0 18px 44px #2c353a1a}.nv2-card-wide{grid-template-columns:1fr 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.15s;display:inline-flex}.nv2-arrow:hover{border-color:var(--nv2-accent);background:var(--nv2-accent-soft);transform:translateY(-1px)}.nv2-tpl-slider{scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:#334155 transparent;gap:20px;padding:28px 4px 12px;display:flex;overflow-x:auto}.nv2-tpl-card{scroll-snap-align:start;text-align:left;background:linear-gradient(180deg, var(--nv2-card), var(--nv2-card-2));border:1px solid var(--nv2-line);border-radius:var(--nv2-r);color:var(--nv2-text);flex-direction:column;flex:0 0 300px;padding:0;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex;overflow:hidden}.nv2-tpl-card:hover{border-color:#00818480;transform:translateY(-6px);box-shadow:0 20px 50px #2c353a1f}.nv2-tpl-thumb{border-bottom:1px solid var(--nv2-line);aspect-ratio:16/9;background:#0a1222;display:block;overflow:hidden}.nv2-tpl-thumb img{object-fit:cover;width:100%;height:100%;transition:transform .35s;display:block}.nv2-tpl-card:hover .nv2-tpl-thumb 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var(--nv-border);color:#475569;background:#f8fafc;border-radius:6px;padding:6px 16px;font-size:12px;font-weight:700}.wiotdash-btn.is-on{color:#15803d;background:#f0fdf4;border-color:#86efac}.wiotdash-btn.is-off{color:#b91c1c;background:#fef2f2;border-color:#fca5a5}.wiotdash-btn.is-on.is-active{color:#fff;background:#16a34a;border-color:#16a34a}.wiotdash-btn.is-off.is-active{color:#fff;background:#dc2626;border-color:#dc2626}.wiotdash-btn:disabled{opacity:.45;cursor:not-allowed}.wiotdash-btn:not(:disabled):hover{filter:brightness(.96)}