:root{
  --bg:#f4f6fa; --surface:#fff; --border:#e5e7eb; --muted:#6b7280;
  --text:#0f172a; --primary:#2563eb; --primary-h:#1d4ed8;
  --ok:#059669; --ok-bg:#d1fae5; --err:#dc2626; --err-bg:#fee2e2;
  --warn:#d97706; --warn-bg:#fef3c7;
  --sidebar:#0f172a; --sidebar-2:#1e293b; --sidebar-fg:#cbd5e1; --sidebar-active:#2563eb;
  --shadow:0 1px 2px rgba(0,0,0,.04), 0 1px 3px rgba(0,0,0,.06);
  --radius:10px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font:14px/1.55 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
code{background:#eef2ff;color:#1e3a8a;padding:1px 6px;border-radius:4px;font:12.5px ui-monospace,Menlo,Consolas}
h1{margin:0 0 1rem;font-size:1.6rem;font-weight:600}
h2{margin:1.6rem 0 .8rem;font-size:1.15rem;font-weight:600}
h3{margin:1.2rem 0 .5rem;font-size:1rem;font-weight:600}
p{margin:.5rem 0}
hr{border:0;border-top:1px solid var(--border);margin:1.2rem 0}

/* ===== Layout: sidebar + main ===== */
.app{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.sidebar{background:linear-gradient(180deg,var(--sidebar) 0%,var(--sidebar-2) 100%);color:var(--sidebar-fg);padding:1rem 0;display:flex;flex-direction:column}
.sidebar .logo{padding:0 1.2rem 1rem;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:.6rem}
.sidebar .logo b{display:block;color:#fff;font-size:1.05rem;font-weight:600;letter-spacing:.2px}
.sidebar .logo span{display:block;color:#94a3b8;font-size:.78rem;margin-top:.15rem;word-break:break-all}
.sidebar .group-label{padding:.7rem 1.2rem .3rem;color:#64748b;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em}
.sidebar a.nav{display:flex;align-items:center;gap:.6rem;padding:.55rem 1.2rem;color:var(--sidebar-fg);text-decoration:none;border-left:3px solid transparent;transition:background .15s}
.sidebar a.nav:hover{background:rgba(255,255,255,.05);color:#fff}
.sidebar a.nav.active{background:rgba(37,99,235,.15);color:#fff;border-left-color:var(--sidebar-active)}
.sidebar a.nav .ic{display:inline-block;width:18px;text-align:center;font-size:.95rem;opacity:.85}
.sidebar .spacer{flex:1}
.sidebar .you{padding:1rem 1.2rem;border-top:1px solid rgba(255,255,255,.08);color:#cbd5e1;font-size:.82rem}
.sidebar .you b{display:block;color:#fff;font-weight:600}
.sidebar .you .badge-owner{display:inline-block;background:#7c3aed;color:#fff;font-size:.65rem;padding:1px 6px;border-radius:8px;margin-left:.3rem;vertical-align:1px}

.main{display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;gap:1rem;padding:.7rem 1.5rem;background:var(--surface);border-bottom:1px solid var(--border)}
.topbar .breadcrumb{color:var(--muted);font-size:.88rem}
.topbar .breadcrumb b{color:var(--text)}
.topbar .actions{margin-left:auto;display:flex;gap:.5rem;align-items:center}
.topbar form{margin:0}
.content{padding:1.5rem;max-width:1200px;width:100%}

.footer{padding:1rem 1.5rem;color:var(--muted);font-size:.78rem;border-top:1px solid var(--border);background:var(--surface)}

/* ===== Cards & panels ===== */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin:1rem 0}
.card{background:var(--surface);padding:1.1rem;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border)}
.card .lbl{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em}
.card .num{font-size:1.9rem;font-weight:700;color:var(--text);margin-top:.2rem}
.card .num.ok{color:var(--ok)}
.card .num.warn{color:var(--warn)}
.card.over .num{color:var(--err)}
.card .sub{color:var(--muted);font-size:.78rem;margin-top:.2rem}

.panel{background:var(--surface);padding:1rem 1.1rem;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);margin-bottom:1rem}
.panel summary{cursor:pointer;font-weight:600;outline:none}
.panel-title{font-weight:600;margin:0 0 .6rem}

/* ===== Flash messages ===== */
.flash{padding:.6rem .9rem;border-radius:8px;margin-bottom:.8rem;border:1px solid transparent;font-size:.92rem}
.flash-ok{background:var(--ok-bg);color:#065f46;border-color:#a7f3d0}
.flash-error{background:var(--err-bg);color:#991b1b;border-color:#fecaca}
.flash-info{background:#dbeafe;color:#1e3a8a;border-color:#bfdbfe}

/* ===== Tables ===== */
table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border)}
th,td{padding:.65rem .85rem;text-align:left;border-bottom:1px solid var(--border);vertical-align:middle}
th{background:#f8fafc;font-weight:600;font-size:.82rem;color:#475569;text-transform:uppercase;letter-spacing:.03em}
tr:last-child td{border-bottom:0}
tr:hover td{background:#fafbfd}

/* ===== Forms / buttons ===== */
form.row{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;margin:.4rem 0}
input[type=text],input[type=email],input[type=password],input[type=search],input[name=hostname],input[name=group],input[name=sub],input[name=newpw],select,textarea{
  padding:.5rem .7rem;border:1px solid var(--border);border-radius:6px;font:inherit;min-width:200px;background:#fff;color:var(--text)
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
label{display:block;margin:.4rem 0 .15rem;color:#374151;font-size:.85rem;font-weight:500}
button,.btn{padding:.5rem 1rem;border:0;border-radius:6px;background:var(--primary);color:#fff;font:inherit;cursor:pointer;font-weight:500;transition:background .12s;display:inline-block;text-decoration:none}
button:hover,.btn:hover{background:var(--primary-h);text-decoration:none;color:#fff}
button.danger,.btn.danger{background:var(--err)}
button.danger:hover,.btn.danger:hover{background:#b91c1c}
button.ghost,.btn.ghost{background:#fff;color:var(--text);border:1px solid var(--border)}
button.ghost:hover{background:#f3f4f6;color:var(--text)}
button.link{background:none;color:var(--err);padding:0;text-decoration:underline;font-weight:400}
button.link:hover{background:none;text-decoration:none}
button.small,.btn.small{padding:.3rem .65rem;font-size:.82rem}
.inline{display:inline-flex;gap:.35rem;align-items:center}

/* ===== Badges & misc ===== */
.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:.72rem;font-weight:600;letter-spacing:.02em}
.badge-ok{background:var(--ok-bg);color:#065f46}
.badge-err{background:var(--err-bg);color:#991b1b}
.badge-warn{background:var(--warn-bg);color:#92400e}
.badge-info{background:#dbeafe;color:#1e3a8a}
.hint{color:var(--muted);font-size:.85rem}
.muted{color:var(--muted)}
pre.log{background:#0f172a;color:#e2e8f0;padding:.9rem;border-radius:8px;overflow:auto;max-height:480px;font:12.5px/1.5 ui-monospace,Menlo,Consolas;border:1px solid #1e293b}
pre.code{background:#f8fafc;color:#0f172a;padding:.9rem;border-radius:8px;overflow:auto;font:12.5px/1.5 ui-monospace,Menlo,Consolas;border:1px solid var(--border)}

.kv{display:grid;grid-template-columns:max-content 1fr;gap:.4rem 1rem;margin:.5rem 0}
.kv .k{color:var(--muted);font-size:.85rem}
.kv .v{font-weight:500}

.toolbar{display:flex;gap:.5rem;align-items:center;margin:0 0 .8rem;flex-wrap:wrap}
.toolbar input[type=search]{flex:1;min-width:240px}

/* ===== Login ===== */
.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#1e293b 0%,#2563eb 100%);padding:1rem}
.login-card{width:100%;max-width:400px;background:var(--surface);padding:2.2rem 2rem;border-radius:14px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.login-card h1{font-size:1.4rem;margin:0 0 .3rem;text-align:center}
.login-card .sub{text-align:center;color:var(--muted);margin-bottom:1.4rem;font-size:.9rem}
.login-card label{margin-top:.7rem}
.login-card input{width:100%}
.login-card button{width:100%;margin-top:1rem;padding:.65rem}
.login-card .hint{text-align:center;margin-top:1rem}

/* ===== Group blocks ===== */
.group-block{background:var(--surface);padding:1rem 1.1rem;border-radius:var(--radius);margin:.8rem 0;box-shadow:var(--shadow);border:1px solid var(--border)}
.group-block h3{margin:0 0 .4rem;display:flex;align-items:center;gap:.5rem}
.group-block ul{margin:.5rem 0;padding-left:1.2rem}
.group-block li{padding:.15rem 0}

/* ===== Docs ===== */
.docs-layout{display:grid;grid-template-columns:200px 1fr;gap:1.5rem}
.docs-nav{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.8rem;height:max-content;position:sticky;top:1rem}
.docs-nav a{display:block;padding:.4rem .6rem;border-radius:6px;color:var(--text)}
.docs-nav a:hover{background:#f3f4f6;text-decoration:none}
.docs-nav a.active{background:var(--primary);color:#fff}
.docs-content{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem 1.8rem;box-shadow:var(--shadow);max-width:820px}
.docs-content h1{margin-top:0}
.docs-content ul,.docs-content ol{padding-left:1.3rem}
.docs-content li{margin:.2rem 0}

/* ===== Responsive ===== */
@media (max-width:880px){
  .app{grid-template-columns:1fr}
  .sidebar{position:sticky;top:0;z-index:10;flex-direction:row;flex-wrap:wrap;padding:.6rem;gap:.3rem}
  .sidebar .logo,.sidebar .group-label,.sidebar .you,.sidebar .spacer{display:none}
  .sidebar a.nav{padding:.4rem .8rem;border-left:0;border-bottom:3px solid transparent;font-size:.85rem}
  .sidebar a.nav.active{border-left:0;border-bottom-color:var(--sidebar-active)}
  .docs-layout{grid-template-columns:1fr}
}