*{box-sizing:border-box}
:root{
--bg:#090b10;--panel:#111620;--panel2:#151b27;--border:#252d3c;--text:#edf2fb;
--muted:#8490a4;--blue:#4777ff;--cyan:#00b4ff;--green:#55dca5;--red:#ff7186;
--sidebar:250px
}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,Segoe UI,Arial,sans-serif}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
.app-shell{min-height:100vh}
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);padding:24px 18px;background:#0d1119;border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:30}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;font-weight:900;font-size:22px;background:linear-gradient(135deg,#4777ff,#00b4ff);box-shadow:0 10px 30px #2157ff33}
.brand strong{display:block;font-size:16px}
.brand span{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.nav{margin-top:34px;display:flex;flex-direction:column;gap:7px}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:10px;color:#9da8ba;font-size:14px;font-weight:600}
.nav-item:hover{background:#141a24;color:#fff}
.nav-item.active{color:#fff;background:linear-gradient(90deg,#1f2d55,#141c2b);box-shadow:inset 3px 0 #4777ff}
.nav-icon{width:24px;text-align:center}
.sidebar-bottom{margin-top:auto}
.user-card{display:flex;align-items:center;gap:10px;border-top:1px solid var(--border);padding-top:18px}
.avatar{width:34px;height:34px;border-radius:10px;background:#1e2940;display:grid;place-items:center;color:#7fa3ff;font-weight:800}
.user-card strong,.user-card span{display:block}.user-card strong{font-size:13px}.user-card span{font-size:11px;color:var(--muted);margin-top:2px}
.logout-link{display:block;color:#778297;font-size:12px;margin:12px 0 0 44px}.logout-link:hover{color:#fff}
.main-wrap{margin-left:var(--sidebar);min-height:100vh}
.topbar{height:78px;padding:0 34px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:20px;background:#0b0f16aa;backdrop-filter:blur(14px);position:sticky;top:0;z-index:20}
.topbar h1{margin:0;font-size:18px}.topbar p{margin:3px 0 0;color:var(--muted);font-size:11px}
.top-status{margin-left:auto;color:#91a0b5;font-size:12px;display:flex;align-items:center;gap:8px}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 15px var(--green)}
.menu-btn{display:none;background:none;border:0;color:white;font-size:22px}
.content{padding:32px;max-width:1500px;margin:auto}
.hero{border:1px solid #293245;background:radial-gradient(circle at 85% 20%,#0d5e9d33,transparent 30%),linear-gradient(120deg,#121a2b,#111720);border-radius:18px;padding:30px;display:flex;justify-content:space-between;align-items:center;gap:30px}
.hero h2{font-size:29px;margin:7px 0 10px;letter-spacing:-.6px}.hero p{color:#9aa6b8;margin:0;max-width:720px;line-height:1.6}
.eyebrow{font-size:10px;letter-spacing:1.6px;color:#6292ff;font-weight:800}
.primary-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:12px 18px;font-weight:700;cursor:pointer}
.primary-btn{background:linear-gradient(90deg,#4777ff,#00aaf5);color:white}.primary-btn.inline{white-space:nowrap}
.secondary-btn{background:#151c28;color:#aeb9cb;border:1px solid #2a3444}.secondary-btn:disabled{opacity:.55}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin:20px 0}
.stat-card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:20px}.stat-card span,.stat-card small{display:block}
.stat-label{color:#8f9aad;font-size:11px}.stat-card strong{display:block;font-size:29px;margin:10px 0 3px}.stat-card .small-value{font-size:23px}.stat-card small{color:#657186;font-size:11px}
.section-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:15px;padding:22px}
.panel-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}.panel-heading h3{margin:4px 0 0;font-size:17px}.panel-heading a{font-size:12px;color:#6e97ff}
.node-row{display:flex;align-items:center;gap:13px;padding:14px 0;border-top:1px solid #202837}.node-row:first-child{border-top:0}
.node-icon{width:42px;height:42px;border-radius:11px;background:#172238;color:#779eff;display:grid;place-items:center;font-size:10px;font-weight:800}
.node-main{flex:1}.node-main strong,.node-main span{display:block}.node-main span{color:var(--muted);font-size:11px;margin-top:4px}
.pill{display:inline-flex;border-radius:20px;padding:5px 9px;font-size:9px;font-weight:800;letter-spacing:.7px}.pill.online{background:#14342b;color:#62dfad}.pill.offline{background:#321b22;color:#ff8394}
.check-list{display:flex;flex-direction:column;gap:13px}.check{display:flex;gap:10px;align-items:center;color:#6e7b8f;font-size:13px}.check.done{color:#b8c2d1}.check.done:first-letter{color:var(--green)}
.page-heading{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:22px}.page-heading h2{font-size:29px;margin:5px 0 6px}.page-heading p{color:var(--muted);margin:0}
.node-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(410px,1fr));gap:18px}
.node-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:22px}.node-card-top{display:flex;justify-content:space-between;gap:20px}.node-title-line{display:flex;align-items:center;gap:10px}.node-title-line h3{margin:0;font-size:20px}.node-card-top p{color:var(--muted);font-size:12px;margin:7px 0}.node-type{font-size:10px;color:#6d8fd8;letter-spacing:1px}
.node-specs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:20px 0}.node-specs div{background:#0c1119;border:1px solid #202838;border-radius:10px;padding:12px}.node-specs span,.node-specs strong{display:block}.node-specs span{color:#68758a;font-size:10px}.node-specs strong{font-size:13px;margin-top:5px}
.node-details{display:grid;gap:9px}.node-details div{display:flex;justify-content:space-between;border-bottom:1px solid #202837;padding-bottom:9px}.node-details span{color:#728096;font-size:11px}.node-details strong,.node-details code{font-size:11px;color:#bdc7d7}
.capabilities{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}.capabilities span{background:#172035;border:1px solid #253451;border-radius:20px;padding:5px 9px;color:#8ba9ec;font-size:10px}
.node-message{margin-top:17px;background:#141922;border-left:3px solid #526b9e;padding:12px;color:#8793a7;font-size:11px;line-height:1.5}
.info-panel{margin-top:18px}.info-panel h3{margin:5px 0}.info-panel p{margin:0;color:var(--muted);font-size:13px}
.empty-state{text-align:center;color:#6f7d92;padding:45px}.empty-state.large{display:flex;flex-direction:column;gap:8px}.empty-state.large strong{color:#a9b4c5}
.login-body{overflow:hidden}.login-page{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}
.login-visual{background:radial-gradient(circle at 65% 30%,#1f59c655,transparent 35%),linear-gradient(145deg,#0e1420,#090c12);display:flex;align-items:center;justify-content:center;padding:70px}
.visual-inner{max-width:600px}.brand.large .brand-mark{width:48px;height:48px;font-size:28px}.brand.large strong{font-size:20px}.visual-inner h1{font-size:58px;line-height:1.02;letter-spacing:-2.5px;margin:70px 0 24px}.visual-inner>p{color:#8997ac;max-width:500px;line-height:1.7}.visual-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px}.visual-tags span{border:1px solid #29354a;background:#111a29;padding:7px 11px;border-radius:20px;color:#8fa6cf;font-size:11px}
.login-panel{display:flex;align-items:center;justify-content:center;padding:40px;background:#0a0d12}.login-card{width:min(420px,100%)}.login-heading{margin-bottom:30px}.login-heading h2{font-size:28px;margin:7px 0 8px}.login-heading p{color:var(--muted);font-size:13px}.login-card label{display:block;color:#a8b2c2;font-size:12px;font-weight:700;margin:16px 0 7px}.login-card input{width:100%;border:1px solid #2a3445;background:#0e131b;color:#fff;border-radius:10px;padding:13px;outline:none}.login-card input:focus{border-color:#4777ff;box-shadow:0 0 0 3px #4777ff1c}.login-card .primary-btn{width:100%;margin-top:22px}.login-note{text-align:center;color:#566276;font-size:10px;margin-top:18px}.alert.error{background:#2a151a;border:1px solid #57303a;color:#ff91a0;padding:11px;border-radius:9px;font-size:12px}
@media(max-width:1050px){.stats-grid{grid-template-columns:repeat(2,1fr)}.section-grid{grid-template-columns:1fr}.login-page{grid-template-columns:1fr}.login-visual{display:none}}
@media(max-width:900px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:translateX(0)}.main-wrap{margin-left:0}.menu-btn{display:block}.content{padding:20px}.topbar{padding:0 20px}.top-status{display:none}}
@media(max-width:600px){.stats-grid{grid-template-columns:1fr 1fr}.hero{align-items:flex-start;flex-direction:column}.hero h2{font-size:24px}.node-cards{grid-template-columns:1fr}.node-specs{grid-template-columns:1fr 1fr}.page-heading{align-items:flex-start;flex-direction:column;gap:16px}}