:root{
  --primary:#2563eb; --primary-dark:#1d4ed8; --bg:#f1f5f9; --card:#ffffff;
  --text:#1e293b; --muted:#64748b; --border:#e2e8f0; --sidebar:#0f172a;
  --sidebar-2:#1e293b; --green:#16a34a; --red:#dc2626; --amber:#d97706;
  --radius:12px; --shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.5}
a{color:var(--primary);text-decoration:none}

/* ---- Sidebar ---- */
.sidebar{position:fixed;inset:0 auto 0 0;width:250px;background:var(--sidebar);color:#cbd5e1;display:flex;flex-direction:column;padding:16px 0;z-index:40}
.brand{display:flex;align-items:center;gap:12px;padding:8px 20px 20px;border-bottom:1px solid #ffffff14;margin-bottom:12px}
.brand .logo{font-size:28px}
.brand strong{color:#fff;display:block;font-size:15px;line-height:1.2}
.brand small{color:#94a3b8;font-size:11px;letter-spacing:1px}
.sidebar nav{flex:1;display:flex;flex-direction:column;gap:2px;padding:0 12px;overflow-y:auto}
.sidebar nav a{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:8px;color:#cbd5e1;font-size:14px;transition:.15s}
.sidebar nav a span{width:20px;text-align:center}
.sidebar nav a:hover{background:#ffffff12;color:#fff}
.sidebar nav a.active{background:var(--primary);color:#fff;font-weight:600}
.logout{margin:12px 12px 0;padding:11px 14px;border-radius:8px;color:#fca5a5;font-size:14px}
.logout:hover{background:#ffffff10}

/* ---- Main ---- */
.main{margin-left:250px;min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;justify-content:space-between;align-items:center;background:var(--card);padding:16px 28px;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:30}
.topbar h1{font-size:20px;font-weight:700}
.user-chip{display:flex;align-items:center;gap:10px;font-size:14px;padding:4px 10px;border-radius:24px;transition:background .15s}
.user-chip:hover{background:#f1f5f9}
.topbar-search{max-width:300px;width:100%}
.topbar-search input{padding:8px 12px;font-size:13px;border-radius:20px;background:#f8fafc}
.topbar-search input:focus{background:#fff}
.role-tag{background:#dbeafe;color:var(--primary-dark);padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.content{flex:1;padding:28px;max-width:1200px;width:100%}
.foot{text-align:center;color:var(--muted);font-size:12px;padding:18px}
.menu-toggle{display:none;position:fixed;top:14px;left:14px;z-index:50;background:var(--sidebar);color:#fff;border:0;font-size:20px;width:42px;height:42px;border-radius:8px;cursor:pointer}

/* ---- Cards / grid ---- */
.grid{display:grid;gap:18px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.card h2,.card h3{font-size:16px;margin-bottom:14px}
.stat{display:flex;flex-direction:column;gap:6px}
.stat .num{font-size:32px;font-weight:800;color:var(--primary)}
.stat .lbl{color:var(--muted);font-size:13px}
.stat .ico{font-size:24px;align-self:flex-start;background:#eff6ff;width:48px;height:48px;display:grid;place-items:center;border-radius:10px;margin-bottom:6px}

/* ---- Table ---- */
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--border)}
th{background:#f8fafc;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.4px}
tr:hover td{background:#f8fafc}
.table-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}

/* ---- Buttons / forms ---- */
.btn{display:inline-flex;align-items:center;gap:7px;background:var(--primary);color:#fff;border:0;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:.15s}
.btn:hover{background:var(--primary-dark)}
.btn-sm{padding:6px 12px;font-size:13px}
.btn-ghost{background:#fff;color:var(--text);border:1px solid var(--border)}
.btn-danger{background:var(--red)}
.btn-green{background:var(--green)}
label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px;color:#334155}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--primary)}
textarea{min-height:110px;resize:vertical}
.form-row{display:flex;gap:14px}.form-row>*{flex:1}

/* ---- Badges / alerts ---- */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.badge-green{background:#dcfce7;color:#166534}.badge-red{background:#fee2e2;color:#991b1b}
.badge-amber{background:#fef3c7;color:#92400e}.badge-blue{background:#dbeafe;color:#1e40af}
.badge-gray{background:#f1f5f9;color:#475569}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:18px;font-size:14px;border:1px solid}
.alert-info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}
.alert-success{background:#f0fdf4;border-color:#bbf7d0;color:#166534}
.alert-error,.alert-danger{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.alert-warning{background:#fffbeb;border-color:#fde68a;color:#92400e}

.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:12px;flex-wrap:wrap}
.muted{color:var(--muted)}
.mt{margin-top:18px}.mb{margin-bottom:18px}

/* ---- Login & install ---- */
.auth-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#1e3a8a,#2563eb);padding:20px}
.auth-card{background:#fff;border-radius:16px;padding:36px;width:100%;max-width:410px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.auth-card h1{font-size:22px;text-align:center;margin-bottom:4px}
.auth-card .sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:24px}
.auth-card .btn{width:100%;justify-content:center;margin-top:20px;padding:12px}
.auth-logo{text-align:center;font-size:46px;margin-bottom:8px}
.steps{display:flex;gap:8px;margin-bottom:24px}
.steps .s{flex:1;height:5px;border-radius:3px;background:var(--border)}
.steps .s.on{background:var(--primary)}

/* ---- Responsive ---- */
@media(max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){
  .sidebar{transform:translateX(-100%);transition:.25s}
  body.sidebar-open .sidebar{transform:none}
  .main{margin-left:0}.menu-toggle{display:block}
  .topbar{padding-left:68px}.grid-3,.grid-2{grid-template-columns:1fr}
  .form-row{flex-direction:column}
}