:root{
  --bg:#f4f6f9; --panel:#fff; --ink:#1c2430; --muted:#6b7684; --line:#e4e8ee;
  --brand:#1a73e8; --brand-ink:#fff; --danger:#d93025; --ok:#137333; --warn:#e37400;
  --radius:10px; --shadow:0 1px 3px rgba(16,24,40,.08),0 1px 2px rgba(16,24,40,.04);
  --sidebar:248px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14.5px;line-height:1.5}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* Layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar);background:#0f172a;color:#cbd5e1;flex-shrink:0;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar .brand{padding:18px 18px;font-weight:700;color:#fff;font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.08);display:flex;align-items:center;gap:8px}
.sidebar .brand small{display:block;font-weight:400;color:#93a4bd;font-size:11.5px}
.sidebar nav{padding:10px 8px;flex:1}
.sidebar nav .group{color:#64748b;font-size:11px;text-transform:uppercase;letter-spacing:.06em;padding:14px 12px 6px}
.sidebar nav a{display:flex;align-items:center;gap:10px;color:#cbd5e1;padding:9px 12px;border-radius:8px;font-size:14px}
.sidebar nav a:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff}
.sidebar nav a.active{background:var(--brand);color:#fff}
.sidebar nav a .ic{width:18px;text-align:center;opacity:.9}
.sidebar .foot{padding:12px;border-top:1px solid rgba(255,255,255,.08);font-size:12.5px}
.sidebar .foot a{color:#93a4bd}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:var(--panel);border-bottom:1px solid var(--line);padding:12px 22px;
  display:flex;align-items:center;gap:16px;position:sticky;top:0;z-index:20}
.topbar h1{font-size:17px;margin:0;font-weight:650;flex:1}
.content{padding:22px;max-width:1200px;width:100%}

/* Portal switcher */
.switcher{position:relative}
.switcher select{appearance:none;background:#eef2f7;border:1px solid var(--line);border-radius:8px;
  padding:8px 30px 8px 12px;font-size:13.5px;color:var(--ink);cursor:pointer;max-width:260px}
.usermenu{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}
.usermenu .avatar{width:30px;height:30px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:600;font-size:13px}

/* Cards & grid */
.grid{display:grid;gap:16px}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card .hd{padding:14px 16px;border-bottom:1px solid var(--line);font-weight:600;display:flex;align-items:center;gap:10px}
.card .hd .sp{flex:1}
.card .bd{padding:16px}
.stat{padding:16px}
.stat .n{font-size:28px;font-weight:700;line-height:1}
.stat .l{color:var(--muted);font-size:12.5px;margin-top:6px;text-transform:uppercase;letter-spacing:.03em}
.stat .n.small{font-size:22px}

/* Tables */
table.tbl{width:100%;border-collapse:collapse;font-size:14px}
table.tbl th{text-align:left;color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;
  letter-spacing:.03em;padding:10px 12px;border-bottom:1px solid var(--line)}
table.tbl td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tr:hover td{background:#fafbfc}

/* Badges */
.badge{display:inline-block;padding:3px 9px;border-radius:99px;font-size:11.5px;font-weight:600;line-height:1.4}
.badge.gray{background:#eef2f7;color:#5b6675}
.badge.green{background:#e6f4ea;color:var(--ok)}
.badge.blue{background:#e8f0fe;color:var(--brand)}
.badge.orange{background:#fef3e0;color:var(--warn)}
.badge.red{background:#fce8e6;color:var(--danger)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:7px;background:var(--brand);color:#fff;border:1px solid var(--brand);
  padding:9px 16px;border-radius:8px;font-size:14px;font-weight:550;cursor:pointer;text-decoration:none;line-height:1}
.btn:hover{filter:brightness(.95);text-decoration:none;color:#fff}
.btn.sm{padding:6px 11px;font-size:13px}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{background:#f6f8fa;color:var(--ink)}
.btn.danger{background:var(--danger);border-color:var(--danger)}
.btn.ok{background:var(--ok);border-color:var(--ok)}
.btn.warn{background:var(--warn);border-color:var(--warn)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* Forms */
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:13px;margin-bottom:6px}
.field .hint{color:var(--muted);font-size:12px;margin-top:5px}
input[type=text],input[type=email],input[type=password],input[type=url],input[type=number],
input[type=datetime-local],input[type=color],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;
  font-family:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,115,232,.12)}
textarea{resize:vertical;min-height:110px}
.checkbox{display:flex;align-items:center;gap:9px;font-size:14px}
.checkbox input{width:auto}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}

/* Alerts */
.alert{padding:12px 15px;border-radius:8px;margin-bottom:16px;font-size:14px}
.alert.ok{background:#e6f4ea;color:var(--ok);border:1px solid #b7e0c1}
.alert.err{background:#fce8e6;color:var(--danger);border:1px solid #f3c0bb}
.alert.info{background:#e8f0fe;color:var(--brand);border:1px solid #c2d7fb}
.alert.warn{background:#fef3e0;color:var(--warn);border:1px solid #f6d9a8}

.page-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.page-head h2{margin:0;font-size:20px}
.page-head .sp{flex:1}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.tabs{display:flex;gap:6px;margin-bottom:16px;flex-wrap:wrap}
.tabs a{padding:7px 13px;border-radius:8px;background:#fff;border:1px solid var(--line);color:var(--ink);font-size:13.5px}
.tabs a.active{background:var(--ink);color:#fff}
.empty{padding:40px;text-align:center;color:var(--muted)}
.bar{height:8px;background:#eef2f7;border-radius:99px;overflow:hidden}
.bar > i{display:block;height:100%;background:var(--brand)}

/* Mini bar chart */
.chart{display:flex;align-items:flex-end;gap:3px;height:120px}
.chart .col{flex:1;background:var(--brand);border-radius:3px 3px 0 0;min-height:2px;opacity:.85}
.chart .col:hover{opacity:1}

@media(max-width:900px){
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .grid.cols-3{grid-template-columns:1fr}
  .grid.cols-2{grid-template-columns:1fr}
  .row2,.row3{grid-template-columns:1fr}
  .sidebar{position:fixed;left:-260px;z-index:50;transition:left .2s}
  .sidebar.open{left:0}
  .menu-toggle{display:inline-flex!important}
}
.menu-toggle{display:none;background:none;border:none;font-size:22px;cursor:pointer;color:var(--ink)}