:root{
  --bg:#0f1419; --panel:#161d26; --panel2:#1d2733; --line:#283444;
  --text:#e6edf3; --muted:#8b98a8; --brand:#4f8cff; --ok:#3fb950; --warn:#d29922; --err:#f85149;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:14px}
a{color:var(--brand);text-decoration:none}
h1{font-size:1.3rem;margin:0}
h2{font-size:1.05rem;margin:0 0 10px}
.muted{color:var(--muted)}

/* App shell */
.app{display:flex;min-height:100vh}
.sidebar{width:230px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:16px 12px}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px 14px}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.1rem}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text span{font-size:.7rem;color:var(--muted)}
.op{display:flex;align-items:center;gap:10px;padding:10px 8px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:10px}
.op-avatar{width:34px;height:34px;border-radius:50%;background:var(--panel2);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--brand)}
.op-name{font-weight:600}
.op-role{font-size:.72rem;color:var(--muted)}
.nav{display:flex;flex-direction:column;gap:2px;flex:1}
.nav-item{padding:9px 10px;border-radius:8px;color:var(--text);font-size:.9rem}
.nav-item:hover{background:var(--panel2)}
.nav-soon{opacity:.55}
.nav-sep{height:1px;background:var(--line);margin:10px 4px}
.ver{text-align:center;color:var(--muted);font-size:.7rem;padding-top:8px}

.content{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{padding:18px 28px;border-bottom:1px solid var(--line);background:var(--panel)}
.page{padding:28px}

/* Cards / KPIs */
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px}
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.kpi-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.kpi-num{font-size:1.9rem;font-weight:700;margin-top:4px}
.kpi-ok{color:var(--ok)} .kpi-warn{color:var(--warn)} .kpi-err{color:var(--err)}

/* Forms / buttons */
label{display:block;font-size:.8rem;color:var(--muted);margin:12px 0 4px}
input[type=text],input[type=email],input[type=password]{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:var(--panel2);color:var(--text);font-size:.95rem}
.btn{display:inline-block;border:0;border-radius:8px;padding:10px 16px;font-size:.9rem;font-weight:600;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff}
.btn-danger{background:var(--err);color:#fff}

/* Auth */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.auth-card{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px}
.auth-brand{text-align:center;margin-bottom:18px;display:flex;flex-direction:column;align-items:center;gap:4px}
.auth-brand .brand-mark{width:44px;height:44px;font-size:1.3rem}
.auth-brand span{font-size:.78rem;color:var(--muted)}
.auth-card .btn-primary{width:100%;margin-top:18px}
.auth-foot{text-align:center;color:var(--muted);font-size:.78rem;margin-top:16px}

/* Alerts / badges */
.alert{padding:10px 14px;border-radius:8px;margin-bottom:12px;font-size:.88rem}
.alert-error{background:rgba(248,81,73,.15);color:#ff9b94;border:1px solid rgba(248,81,73,.35)}
.alert-success{background:rgba(63,185,80,.15);color:#7ee787;border:1px solid rgba(63,185,80,.35)}
.alert-warning{background:rgba(210,153,34,.15);color:#e3b341;border:1px solid rgba(210,153,34,.35)}
.badge{display:inline-block;padding:4px 10px;border-radius:20px;font-size:.78rem;font-weight:600}
.badge-ok{background:rgba(63,185,80,.18);color:#7ee787}
.secret-box{font-family:ui-monospace,monospace;font-size:1.1rem;letter-spacing:.15em;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:12px;text-align:center;word-break:break-all}
.backup-list{display:grid;grid-template-columns:1fr 1fr;gap:8px;font-family:ui-monospace,monospace}
.backup-list div{background:var(--panel2);border:1px solid var(--line);border-radius:6px;padding:8px;text-align:center}