:root{
  --bg:#09090b;
  --surface:#121214;
  --surface-2:#18181b;
  --border:#27272a;
  --text:#fafafa;
  --muted:#a1a1aa;
  --muted-2:#71717a;
  --active:rgba(59,130,246,.10);
  --active-line:rgba(59,130,246,.28);
  --good:#34d399;
  --warn:#f59e0b;
  --bad:#f87171;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --radius:22px;
  --radius-sm:16px;
  --sidebar-w:280px;
  --header-h:68px;
}
*{box-sizing:border-box}
html,body{height:100%}
html{color-scheme:dark}
body{
  margin:0;
  font-family:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(59,130,246,.08), transparent 20%),
    linear-gradient(180deg,#09090b,#0b0b0e 45%,#09090b);
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  opacity:.08;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size:28px 28px;
}
a{color:inherit}
.app{
  min-height:100vh;
  display:grid;
  grid-template-columns: var(--sidebar-w) minmax(0,1fr);
  gap:16px;
  padding:16px;
}
.sidebar{
  min-width:0;
  border:1px solid var(--border);
  border-radius:24px;
  background:linear-gradient(180deg, rgba(24,24,27,.92), rgba(18,18,20,.96));
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  overflow:hidden;
}
.brand{
  padding:18px 18px 16px;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.brand .eyebrow{
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:11px;
  font-weight:700;
  color:var(--muted-2);
}
.brand h1{
  margin:8px 0 0;
  font-size:20px;
  letter-spacing:-.03em;
}
.brand p{
  margin:8px 0 0;
  color:var(--muted);
  font-size:13px;
  line-height:1.45;
}
.side-scroll{
  padding:14px;
  overflow:auto;
  display:grid;
  gap:14px;
}
.nav-group-title{
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:11px;
  font-weight:700;
  color:var(--muted-2);
  margin:0 0 10px;
}
.nav-list{
  display:grid;
  gap:8px;
}
.nav-item{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:12px 14px;
  border:1px solid transparent;
  border-radius:16px;
  text-decoration:none;
  color:var(--text);
  background:transparent;
}
.nav-item:hover{
  border-color:var(--border);
  background:rgba(255,255,255,.02);
}
.nav-item.active{
  background:linear-gradient(180deg, rgba(59,130,246,.12), rgba(59,130,246,.05));
  border-color:rgba(59,130,246,.18);
  box-shadow:inset 0 0 0 1px rgba(59,130,246,.05);
}
.nav-icon{
  width:18px;height:18px;flex:0 0 18px;display:grid;place-items:center;color:#d4d4d8;font-size:14px;opacity:.92
}
.nav-copy strong{
  display:block;
  font-size:13px;
  font-weight:600;
}
.nav-copy span{
  display:block;
  margin-top:4px;
  font-size:11px;
  line-height:1.35;
  color:var(--muted);
}
.main{
  min-width:0;
  display:grid;
  grid-template-rows:auto minmax(0,1fr);
  gap:16px;
}
.topbar{
  min-height:var(--header-h);
  border:1px solid var(--border);
  border-radius:22px;
  background:linear-gradient(180deg, rgba(24,24,27,.88), rgba(18,18,20,.94));
  box-shadow:var(--shadow);
  padding:14px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.leftbar{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.menu-btn{
  display:none;
  appearance:none;
  border:1px solid var(--border);
  background:transparent;
  color:var(--text);
  border-radius:12px;
  min-height:40px;
  min-width:40px;
  cursor:pointer;
}
.menu-btn:hover,.ghost-btn:hover{
  border-color:rgba(59,130,246,.24);
  background:rgba(59,130,246,.05);
}
.breadcrumb .eyebrow{
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:11px;
  font-weight:700;
  color:var(--muted-2);
}
.breadcrumb .path{
  display:flex;gap:8px;align-items:center;margin-top:6px;font-size:13px;color:var(--muted);flex-wrap:wrap
}
.breadcrumb .path strong{color:var(--text)}
.top-stats{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:34px;
  padding:0 12px;
  border:1px solid var(--border);
  border-radius:999px;
  color:var(--muted);
  font-size:12px;
  background:rgba(255,255,255,.02);
}
.dot{width:8px;height:8px;border-radius:50%}
.good{background:var(--good);box-shadow:0 0 12px rgba(52,211,153,.5)}
.warn{background:var(--warn);box-shadow:0 0 12px rgba(245,158,11,.5)}
.bad{background:var(--bad);box-shadow:0 0 12px rgba(248,113,113,.5)}
.content{
  min-height:0;
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:16px;
}
.workspace,.rail{
  min-width:0;
  min-height:0;
  border:1px solid var(--border);
  border-radius:24px;
  background:linear-gradient(180deg, rgba(24,24,27,.90), rgba(18,18,20,.96));
  box-shadow:var(--shadow);
}
.workspace{overflow:auto;padding:24px}
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:14px;
  padding-bottom:22px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head h2{
  margin:0;
  font-size:28px;
  line-height:1.05;
  letter-spacing:-.04em;
}
.section-head p{
  margin:10px 0 0;
  max-width:76ch;
  color:var(--muted);
}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.ghost-btn{
  appearance:none;
  text-decoration:none;
  border:1px solid var(--border);
  background:transparent;
  color:var(--text);
  border-radius:14px;
  min-height:38px;
  padding:0 14px;
  font-size:13px;
  font-weight:600;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;
  margin-top:22px;
}
.metric{
  border:1px solid rgba(255,255,255,.05);
  border-radius:18px;
  padding:18px;
  background:rgba(255,255,255,.02);
}
.metric .label{
  text-transform:uppercase;
  letter-spacing:.15em;
  font-size:11px;
  font-weight:700;
  color:var(--muted-2);
}
.metric .value{
  margin-top:10px;
  font-size:26px;
  font-weight:700;
  letter-spacing:-.04em;
}
.metric .sub{
  margin-top:8px;
  color:var(--muted);
  font-size:12px;
}
.domain-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:22px;
}
.domain{
  border:1px solid var(--border);
  border-radius:20px;
  padding:22px;
  background:linear-gradient(180deg, #1c1c1f, #121214);
}
.domain .eyebrow{
  text-transform:uppercase;
  letter-spacing:.15em;
  font-size:11px;
  font-weight:700;
  color:var(--muted-2);
}
.domain h3{
  margin:10px 0 0;
  font-size:21px;
  letter-spacing:-.03em;
}
.domain p{margin:10px 0 0;color:var(--muted)}
.domain-list{
  display:grid;
  gap:10px;
  margin-top:16px;
}
.domain-row{
  display:grid;
  grid-template-columns:10px minmax(0,1fr);
  gap:10px;
  align-items:flex-start;
}
.domain-row strong{display:block;font-size:13px}
.domain-row span{display:block;margin-top:4px;font-size:12px;color:var(--muted)}
.rail{
  display:grid;
  grid-template-rows:auto minmax(0,1fr) auto;
  overflow:hidden;
}
.rail-head{
  padding:18px 18px 14px;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.rail-head h3{
  margin:8px 0 0;
  font-size:15px;
}
.rail-head p{
  margin:8px 0 0;
  color:var(--muted);
  font-size:12px;
}
.registry{
  overflow:auto;
  padding:10px;
  display:grid;
  gap:6px;
}
.registry-item{
  display:grid;
  grid-template-columns:10px minmax(0,1fr) auto;
  gap:10px;
  align-items:center;
  padding:10px 12px;
  border:1px solid transparent;
  border-radius:14px;
  text-decoration:none;
  color:var(--text);
}
.registry-item:hover{
  border-color:var(--border);
  background:rgba(255,255,255,.02);
}
.registry-item.active{
  border-color:rgba(59,130,246,.18);
  background:linear-gradient(180deg, rgba(59,130,246,.10), rgba(59,130,246,.04));
}
.registry-main strong{display:block;font-size:13px;font-weight:600}
.registry-main span{display:block;margin-top:4px;font-size:11px;color:var(--muted);line-height:1.4}
.registry-meta{font-size:11px;color:var(--muted-2);white-space:nowrap}
.rail-foot{
  border-top:1px solid rgba(255,255,255,.05);
  padding:12px;
  display:grid;
  gap:8px;
}
.mini{
  border:1px solid rgba(255,255,255,.05);
  border-radius:14px;
  padding:10px 12px;
  background:rgba(255,255,255,.02);
}
.mini strong{display:block;font-size:12px}
.mini span{display:block;margin-top:5px;font-size:11px;color:var(--muted)}
.notice{
  margin-top:22px;
  border:1px solid rgba(59,130,246,.18);
  border-radius:18px;
  padding:16px;
  background:rgba(59,130,246,.06);
  color:var(--muted);
}
@media (max-width:1280px){
  .content{grid-template-columns:1fr}
  .rail{order:2}
}
@media (max-width:1100px){
  .app{grid-template-columns:1fr}
  .sidebar{
    position:fixed;
    top:16px;
    left:16px;
    bottom:16px;
    width:min(82vw,320px);
    transform:translateX(-115%);
    transition:.24s ease;
    z-index:20;
  }
  .sidebar.open{transform:translateX(0)}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center}
}
@media (max-width:900px){
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .domain-grid{grid-template-columns:1fr}
  .workspace{padding:18px}
  .topbar{padding:12px 14px}
}
@media (max-width:640px){
  .app{padding:10px}
  .metric-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .leftbar{width:100%}
  .topbar{align-items:flex-start;flex-direction:column}
  .top-stats{justify-content:flex-start}
}