/* dtrvantage.com — the dashboard's own design language: its palette, its fonts, its panels. */
:root{--bg:#f4f5f7;--panel:#fff;--panel-2:#eceef1;--border:#d7dbe0;--text:#1c2128;--muted:#5b6672;--accent:#b9740f;--accent-dark:#9c610a;--highlight:#b9740f;--crit:#cf222e;--warn:#9a6700;--ok:#1a7f37;--info:#0969da;--mono:"Spline Sans Mono",ui-monospace,"Cascadia Mono",Menlo,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
a{color:var(--info)}a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 .4rem;line-height:1.25}
.mono{font-family:var(--mono)}
.hint{color:var(--muted);font-size:.85rem}
/* header: the dashboard's */
header.top{background:var(--panel);border-bottom:1px solid var(--border);padding:0 1.5rem;display:flex;align-items:center;gap:1.5rem;height:60px;position:sticky;top:0;z-index:300}
.brand{display:flex;align-items:center;gap:.7rem;flex-shrink:0;text-decoration:none;color:var(--text)}
.brand-mark{width:26px;height:26px;border-radius:6px;flex-shrink:0;position:relative;background:linear-gradient(135deg,var(--panel-2),var(--bg));box-shadow:inset 0 0 0 1px var(--border)}
.brand-mark::before,.brand-mark::after{content:"";position:absolute;width:4px;height:4px;border-radius:50%;transform:translate(-50%,-50%)}
.brand-mark::before{left:30%;top:30%;background:var(--accent);animation:brand-dot-pulse 6s ease-in-out infinite}
.brand-mark::after{left:68%;top:64%;background:var(--info);animation:brand-dot-pulse 6s ease-in-out -3s infinite}
@keyframes brand-dot-pulse{0%{transform:translate(-50%,-50%) scale(1);opacity:.55}8%{transform:translate(-50%,-50%) scale(1.6);opacity:1}25%{transform:translate(-50%,-50%) scale(1);opacity:.55}50%,100%{transform:translate(-50%,-50%) scale(1);opacity:.55}}
.brand h1{margin:0;font-size:1.05rem;font-weight:600;letter-spacing:-.01em;white-space:nowrap;font-family:var(--mono)}
.brand h1 .sub{color:var(--muted);font-weight:400;font-size:.78rem;margin-left:.5rem}
.product-nav{display:flex;gap:.25rem;align-items:stretch;height:100%;overflow-x:auto;scrollbar-width:none}.product-nav::-webkit-scrollbar{display:none}
.product-tab{background:transparent;border:none;color:var(--muted);cursor:pointer;font-size:.92rem;font-weight:550;padding:0 1.1rem;height:60px;border-bottom:2px solid transparent;transition:color .15s,border-color .15s;display:flex;align-items:center;gap:.4rem;text-decoration:none;white-space:nowrap}
.product-tab:hover{color:var(--text);text-decoration:none}.product-tab.active{color:var(--highlight);border-bottom-color:var(--highlight)}
.top .actions{margin-left:auto;display:flex;align-items:center;gap:.6rem;flex-shrink:0}.top .actions a{white-space:nowrap}.product-nav{flex:1 1 auto;min-width:0}
@media(max-width:1520px){header.top{gap:.8rem;padding:0 1rem}.product-nav{gap:0}.product-nav .product-tab{padding:0 .55rem}.top .actions{gap:.4rem}}@media(max-width:1180px){.product-nav .product-tab{padding:0 .4rem;font-size:.85rem}}
.btn-primary,.btn-secondary,.btn-ghost{border:none;padding:.55rem 1.1rem;border-radius:4px;cursor:pointer;font-size:.9rem;text-decoration:none;display:inline-block;font-family:inherit}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dark);text-decoration:none;color:#fff}
.btn-secondary{background:var(--panel-2);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border);text-decoration:none}
.btn-ghost{background:transparent;color:var(--muted)}.btn-ghost:hover{color:var(--text)}
.nso-mini{padding:.25rem .6rem!important;font-size:.78rem!important}
/* layout */
main{max-width:1240px;margin:0 auto;padding:1.4rem 1.5rem 3rem}
.wide{max-width:1400px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;align-items:start}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
/* band: the view header */
.dtr-band{background:linear-gradient(90deg,color-mix(in srgb,var(--accent) 12%,white),var(--panel-2));border-left:4px solid var(--accent);border-radius:6px;padding:.9rem 1.1rem;display:flex;flex-wrap:wrap;gap:.8rem 1.5rem;align-items:center;margin-bottom:1rem}
.dtr-band h2{font-size:1.05rem;letter-spacing:.02em;margin:0}.dtr-band .lead{color:var(--muted);font-size:.9rem;margin:0}
.dtr-band>.band-tiles{flex-basis:100%}.dtr-band .sp-tiles-row{margin:.2rem 0 0}
.dtr-band.hero{padding:1.6rem 1.4rem;display:grid;grid-template-columns:1.05fr .95fr;gap:1.6rem;align-items:center}
.dtr-band.hero h1{font-size:2.15rem;font-weight:700;letter-spacing:-.01em;margin-bottom:.6rem}
.dtr-band.hero h1 em{font-style:normal;color:var(--accent)}
.dtr-band.hero p{font-size:1.02rem;color:var(--text);max-width:34rem}
.dtr-band.hero .band-tiles{grid-column:1/-1}
.dtr-band.hero .cta{margin:1.1rem 0 0;display:flex;gap:.6rem;flex-wrap:wrap}
/* tiles: the app's stat tiles */
.sp-tiles-row{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:.6rem}
.sp-tile{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.6rem .9rem;min-width:9rem;flex:1 1 0;text-decoration:none;color:var(--text);transition:background .15s,transform .15s}
a.sp-tile:hover,button.sp-tile:hover{background:var(--panel-2);text-decoration:none;transform:translateY(-1px)}button.sp-tile{text-align:left;cursor:pointer;font:inherit}
.sp-tile.on{outline:2px solid var(--accent)}
.sp-tile .k{font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.sp-tile .v{font-size:1.4rem;font-weight:600;margin:.1rem 0;display:flex;align-items:center;gap:.5rem}
.sp-tile .s{font-size:.78rem;color:var(--muted)}
.sp-tile.warn .v{color:var(--warn)}.sp-tile.bad .v{color:var(--crit)}.sp-tile.good .v{color:var(--ok)}
/* ecg: the app's heartbeat line beside an "up" figure */
.ecg{width:52px;height:18px;overflow:visible}.ecg path{fill:none;stroke:var(--ok);stroke-width:1.6;stroke-linejoin:round;stroke-dasharray:140;stroke-dashoffset:140;animation:ecg 2.4s linear infinite}
@keyframes ecg{0%{stroke-dashoffset:140;opacity:.2}30%{opacity:1}100%{stroke-dashoffset:0;opacity:1}}
/* panels */
.auth-section,.card{background:var(--panel);border-radius:6px;padding:1.4rem 1.5rem;margin-bottom:1.2rem;border:1px solid var(--border)}
.auth-section h3,.card h3{margin-top:0;color:var(--accent);font-size:1.02rem}
.card.link{display:block;text-decoration:none;color:var(--text);transition:border-color .15s,transform .15s}.card.link:hover{border-color:var(--accent);transform:translateY(-2px);text-decoration:none}
.card .thumb{margin:.7rem -1.5rem -1.4rem;border-top:1px solid var(--border);overflow:hidden;border-radius:0 0 6px 6px;height:150px;background:var(--panel-2)}.card .thumb img{display:block;width:100%;height:auto;object-fit:cover;object-position:top left}
/* state pills */
.ns-state{display:inline-block;padding:.1rem .5rem;border-radius:3px;font-size:.72rem;font-weight:700;text-transform:uppercase}
.ns-state.up{background:var(--ok);color:#fff}.ns-state.down{background:var(--crit);color:#fff}.ns-state.other{background:var(--warn);color:#fff}.ns-state.unknown{background:var(--panel-2);color:var(--muted);border:1px solid var(--border)}
.tag{display:inline-block;font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:600}
.tag.mg{color:var(--accent)}
/* tables: the app's */
.nso-net-table{width:100%;border-collapse:collapse;font-size:.85rem;background:var(--panel);border:1px solid var(--border);border-radius:8px;overflow:hidden}
.nso-net-table th{text-align:left;padding:.5rem .7rem;color:var(--muted);font-size:.7rem;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border);font-weight:600}
.nso-net-table td{padding:.5rem .7rem;border-bottom:1px solid var(--border);vertical-align:top}.nso-net-table tr:last-child td{border-bottom:0}
.nso-net-table tr.row-down td{background:color-mix(in srgb,var(--crit) 6%,white)}
/* module articles */
.vmod{display:grid;grid-template-columns:1fr 1.15fr;gap:1.6rem;align-items:center;background:var(--panel);border:1px solid var(--border);border-radius:6px;padding:1.4rem 1.5rem;margin-bottom:1.2rem;scroll-margin-top:80px}
.vmod.flip .vmod-img{order:-1}
.vmod h3{color:var(--accent);font-size:1.15rem;margin:.2rem 0 .5rem}
.vmod p{margin:0 0 .8rem;color:var(--text)}
.vfeat{list-style:none;padding:0;margin:0;border-top:1px solid var(--border);padding-top:.7rem}
.vfeat li{padding:.22rem 0 .22rem 1.5rem;position:relative;font-size:.92rem}
.vfeat li::before{content:"✓";position:absolute;left:0;top:.2rem;color:var(--ok);font-weight:700}
.vmod--lit{outline:2px solid var(--accent);outline-offset:4px}
/* screenshot frame: white panel, hairline border, square corners */
.frame{background:#fff;border:1px solid var(--border);padding:4px;box-shadow:0 1px 3px rgba(0,0,0,.10),0 8px 24px -12px rgba(0,23,51,.25);border-radius:0;transition:box-shadow .25s}
.frame img{display:block;width:100%;height:auto;cursor:zoom-in}
.frame:hover{box-shadow:0 1px 3px rgba(0,0,0,.12),0 14px 32px -14px rgba(0,23,51,.35)}
.frame .under{display:flex;justify-content:space-between;align-items:center;gap:.6rem;padding:.4rem .3rem 0}.frame .cap{font-size:.78rem;color:var(--muted)}.frame .demo-link{font-size:.78rem;font-weight:600;color:var(--accent);text-decoration:none;white-space:nowrap}.frame .demo-link:hover{text-decoration:underline}
/* tabs on a module (the VM page's) */
.xtabs{display:flex;gap:.2rem;border-bottom:1px solid var(--border);margin-bottom:.8rem}
.xtab{background:none;border:none;border-bottom:2px solid transparent;padding:.45rem .8rem;font:inherit;font-size:.88rem;color:var(--muted);cursor:pointer}
.xtab.active{color:var(--highlight);border-bottom-color:var(--highlight);font-weight:600}
.xpane{display:none}.xpane.active{display:block}
/* folds: the app's */
.wi-fold{border-bottom:1px solid var(--border)}
.wi-fold>button{display:flex;align-items:center;gap:.6rem;width:100%;background:none;border:none;padding:.7rem .3rem;font:inherit;font-size:.98rem;font-weight:600;color:var(--text);cursor:pointer;text-align:left}
.wi-fold>button .car{display:inline-block;width:1rem;color:var(--muted);transition:transform .15s}.wi-fold.open>button .car{transform:rotate(90deg)}
.wi-fold>button .sum{margin-left:auto;font-weight:400;font-size:.82rem;color:var(--muted)}
.wi-fold>.body{display:none;padding:.2rem .3rem 1rem}.wi-fold.open>.body{display:block}
.wi-fold .body h3{font-size:.95rem;margin:.9rem 0 .3rem}.wi-fold .body p{margin:.3rem 0 .6rem}
.docs-lead{font-size:1.02rem}
/* sidebar + rail like the app */
.ns-side{display:grid;grid-template-columns:260px 1fr;gap:1.4rem;align-items:start}
.ns-tree{background:var(--panel);border:1px solid var(--border);border-radius:6px;padding:.7rem;position:sticky;top:74px;max-height:calc(100vh - 90px);overflow:auto}
.ns-tree input{width:100%;border:1px solid var(--border);border-radius:4px;padding:.4rem .6rem;font:inherit;font-size:.85rem;margin-bottom:.5rem}
.ns-tree .cat{font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:600;padding:.5rem .3rem .2rem}
.ns-tree a{display:block;padding:.28rem .5rem;border-radius:4px;color:var(--text);text-decoration:none;font-size:.88rem}
.ns-tree a:hover{background:var(--panel-2)}.ns-tree a.on{background:var(--panel-2);color:var(--accent);font-weight:600}
.ns-tree a.hide{display:none}
/* topology: the app's diagram, live */
.topo{background:var(--bg);border:1px solid var(--border);border-radius:6px;position:relative;overflow:hidden}
.topo-bar{display:flex;gap:.5rem;align-items:center;padding:.5rem .7rem;border-bottom:1px solid var(--border);background:var(--panel);font-size:.85rem;flex-wrap:wrap}
.topo-bar b{margin-right:.4rem}.topo-bar .sp{flex:1}
.topo svg{display:block;width:100%;height:auto;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
.gnode{cursor:pointer}.gnode .box{fill:#fff;stroke-width:1.6;transition:opacity .2s}.gnode .lane{stroke:none}
.gnode .name{font-family:var(--mono);font-weight:700;font-size:13px;fill:var(--text)}
.gnode .kind{font-size:10px;font-weight:700;letter-spacing:.04em}.gnode .sub{font-size:11px;fill:var(--muted);font-family:var(--mono)}
.gnode .dot{stroke:none}.gnode.dim{opacity:.22}.gnode.sel .box{stroke-width:3}.gnode:hover .box{stroke-width:2.6}
.gedge{fill:none;stroke:#c8ced6;stroke-width:1.4;transition:opacity .2s,stroke .2s}.gedge.lit{stroke:var(--accent);stroke-width:2.2}.gedge.dim{opacity:.15}
.glabel{font-size:11px;font-weight:700;letter-spacing:.06em;fill:var(--muted);text-transform:uppercase}
.topo-pop{position:absolute;background:var(--panel);border:1px solid var(--border);border-radius:6px;box-shadow:0 8px 24px -10px rgba(0,0,0,.3);padding:.6rem .8rem;font-size:.82rem;min-width:14rem;pointer-events:none;display:none}
.topo-pop b{font-family:var(--mono)}
/* verdict card: the app's */
.nso-verdict{border-left:5px solid var(--muted);border-radius:10px;padding:.8rem 1rem;margin-bottom:.8rem;background:var(--panel-2);box-shadow:0 1px 3px rgba(0,0,0,.06)}
.nso-verdict.lv-ok{border-left-color:var(--ok);background:linear-gradient(90deg,color-mix(in srgb,var(--ok) 10%,white),var(--panel-2))}
.nso-verdict.lv-warning{border-left-color:var(--warn);background:linear-gradient(90deg,color-mix(in srgb,var(--warn) 12%,white),var(--panel-2))}
.nso-verdict.lv-critical{border-left-color:var(--crit);background:linear-gradient(90deg,color-mix(in srgb,var(--crit) 10%,white),var(--panel-2))}
.nso-verdict .vh{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:.35rem}
.nso-verdict .ttl{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.nso-verdict .pill{border-radius:999px;padding:.15rem .6rem;font-size:.7rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:#fff;background:var(--muted)}
.nso-verdict .pill.high{background:var(--ok)}.nso-verdict .pill.medium{background:var(--warn)}.nso-verdict .pill.low{background:var(--muted)}
.nso-verdict .words{font-size:1rem;line-height:1.45}
.nso-verdict .ev{margin:.5rem 0 0;padding:0;list-style:none}.nso-verdict .ev li{padding-left:1.1rem;position:relative;font-size:.88rem;margin:.15rem 0}.nso-verdict .ev li::before{content:"›";position:absolute;left:.2rem;color:var(--accent);font-weight:700}
.nso-verdict .ev.after li::before{content:"↳"}
.nso-verdict .note{font-size:.78rem;color:var(--muted);margin-top:.5rem}
.an-chips{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:.8rem}
.an-chip{border:1px solid var(--border);background:var(--panel);border-radius:999px;padding:.35rem .9rem;font:inherit;font-size:.85rem;cursor:pointer;color:var(--text)}
.an-chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
.an-node{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.5rem .8rem;font-size:.82rem;display:flex;gap:.5rem;align-items:flex-start}
.an-node .d{width:9px;height:9px;border-radius:50%;margin-top:.35rem;flex:none;background:var(--ok)}.an-node .d.amber{background:var(--warn)}.an-node .d.red{background:var(--crit)}
/* lightbox */
.vzoom{position:fixed;inset:0;z-index:1000;background:rgba(28,33,40,.82);display:none;align-items:center;justify-content:center;padding:28px;cursor:zoom-out}
.vzoom.open{display:flex}.vzoom img{max-width:min(96vw,1700px);max-height:92vh;width:auto;height:auto;background:#fff;padding:4px;box-shadow:0 30px 80px -20px rgba(0,0,0,.8);cursor:default}
.vzoom .cap{position:absolute;left:0;right:0;bottom:12px;text-align:center;color:#fff;font-size:.85rem}
.vzoom .x{position:absolute;top:14px;right:18px;width:38px;height:38px;border:0;border-radius:50%;background:rgba(255,255,255,.15);color:#fff;font-size:1.3rem;cursor:pointer}
body.lock{overflow:hidden}
/* chips row (like the category chips) */
.chips{display:flex;gap:.4rem;flex-wrap:wrap;margin:.4rem 0 1rem}
.chip{border:1px solid var(--border);background:var(--panel);border-radius:999px;padding:.3rem .8rem;font-size:.82rem;cursor:pointer;font:inherit;color:var(--text)}.chip.on{background:var(--text);color:#fff;border-color:var(--text)}
/* form */
.form label{display:block;font-size:.82rem;color:var(--muted);margin:.6rem 0 .2rem}
.form input,.form textarea,.form select{width:100%;border:1px solid var(--border);border-radius:4px;padding:.55rem .7rem;font:inherit;font-size:.92rem;background:var(--panel);color:var(--text)}
.form textarea{min-height:120px}
.feedback{margin-top:.6rem;font-size:.88rem;display:none}.feedback.show{display:block}.feedback.ok{color:var(--ok)}.feedback.err{color:var(--crit)}
footer{border-top:1px solid var(--border);background:var(--panel);padding:1.4rem 1.5rem;color:var(--muted);font-size:.82rem}
footer .wrap{max-width:1240px;margin:0 auto;display:flex;gap:1rem;flex-wrap:wrap;justify-content:space-between}
.rv{opacity:0;transform:translateY(10px);transition:opacity .5s ease,transform .5s ease}.rv.in{opacity:1;transform:none}
.kbd{font-family:var(--mono);font-size:.8em;background:var(--panel-2);border:1px solid var(--border);border-radius:3px;padding:0 .3rem}
@media(max-width:1000px){.dtr-band.hero,.grid2,.vmod,.ns-side{grid-template-columns:1fr}.vmod.flip .vmod-img{order:0}.grid3,.grid4{grid-template-columns:1fr 1fr}.ns-tree{position:static;max-height:none}.brand h1 .sub{display:none}}
@media(max-width:640px){.grid3,.grid4{grid-template-columns:1fr}main{padding:1rem}.top .actions .btn-primary{display:none}.dtr-band.hero h1{font-size:1.6rem}}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}.brand-mark::before,.brand-mark::after,.ecg path{animation:none;opacity:1}}
.ticks{list-style:none;margin:0;padding:0}.ticks li{position:relative;padding:.3rem 0 .3rem 1.5rem;border-bottom:1px solid var(--border)}.ticks li:last-child{border-bottom:0}.ticks li::before{content:"";position:absolute;left:.15rem;top:.75rem;width:.55rem;height:.55rem;border-radius:50%;background:var(--ok)}