:root{
  --bg:#0b1220;
  --card:#ffffff;
  --muted:#667085;
  --text:#101828;
  --border:#eaecf0;
  --soft:#f2f4f7;
  --primary:#2563eb;
  --danger:#dc2626;
  --warn:#f59e0b;
  --ok:#16a34a;
  --shadow: 0 10px 25px rgba(16,24,40,.08);
  --radius:16px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--font);color:var(--text);background:#f6f7fb}
a{color:inherit;text-decoration:none}
.mt-12{margin-top:12px}
.mt-16{margin-top:16px}
.w-full{width:100%}
.t-center{text-align:center}

/* auth */
.bg{
  min-height:100vh;
  background: radial-gradient(800px 400px at 20% 10%, rgba(37,99,235,.15), transparent 60%),
              radial-gradient(600px 300px at 80% 30%, rgba(16,185,129,.10), transparent 60%),
              #0b1220;
}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.auth-card{width:min(460px,100%);background:#fff;border-radius:22px;box-shadow:var(--shadow);padding:24px}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:14px}
.brand-mark{width:44px;height:44px;border-radius:14px;background:rgba(37,99,235,.12);display:grid;place-items:center;font-weight:800;color:var(--primary)}
.brand-title{font-weight:800;letter-spacing:.4px}
.brand-sub{font-size:13px;color:var(--muted);margin-top:2px}
.auth-foot{margin-top:14px;font-size:12px;color:var(--muted);text-align:center}
.hint{margin-top:10px;font-size:12px;color:var(--muted)}

/* shell */
.shell{display:flex;min-height:100vh}
.sidebar{width:260px;background:#0b1220;color:#fff;padding:18px;display:flex;flex-direction:column;gap:16px;position:sticky;top:0;height:100vh}
.sidebar-brand{display:flex;gap:12px;align-items:center}
.sidebar .brand-mark{background:rgba(255,255,255,.10);color:#fff}
.sidebar .brand-title{color:#fff}
.sidebar .brand-sub{color:rgba(255,255,255,.6);font-size:12px}
.nav{display:flex;flex-direction:column;gap:8px}
.nav-link{padding:10px 12px;border-radius:12px;color:rgba(255,255,255,.86)}
.nav-link:hover{background:rgba(255,255,255,.08)}
.sidebar-foot{margin-top:auto}

.main{flex:1;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5}
.topbar-title{font-weight:750}
.topbar-user{display:flex;align-items:center;gap:10px}
.chip{background:var(--soft);border:1px solid var(--border);padding:8px 10px;border-radius:999px;font-size:13px;color:#344054}
.content{padding:18px;max-width:1200px;width:100%}

/* cards */
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 1px 0 rgba(16,24,40,.02);padding:16px}
.card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.card-title{font-weight:750}
.card-sub{font-size:13px;color:var(--muted);margin-top:2px}
.kpi{display:flex;flex-direction:column;gap:4px}
.kpi-label{font-size:13px;color:var(--muted)}
.kpi-value{font-size:28px;font-weight:800}

/* grid */
.grid{display:grid;gap:12px}
.grid-2{grid-template-columns:repeat(2, minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4, minmax(0,1fr))}
@media (max-width: 980px){.grid-4{grid-template-columns:repeat(2, minmax(0,1fr))}}
@media (max-width: 540px){.grid-2,.grid-4{grid-template-columns:1fr}}

/* forms */
.form{margin-top:14px;display:flex;flex-direction:column;gap:12px}
.field{display:flex;flex-direction:column;gap:6px}
label{font-size:13px;color:#344054;font-weight:600}
input,select{border:1px solid var(--border);border-radius:12px;padding:11px 12px;font-size:14px;outline:none}
input:focus,select:focus{border-color:rgba(37,99,235,.55);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.input-sm{padding:8px 10px;border-radius:10px}
.pw-wrap{display:flex;gap:8px;align-items:center}
.pw-toggle{border:1px solid var(--border);background:var(--soft);border-radius:12px;padding:10px 12px;font-size:13px;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:10px 12px;border:1px solid transparent;font-weight:650;cursor:pointer}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{filter:brightness(.96)}
.btn-secondary{background:var(--soft);border-color:var(--border);color:#111827}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:#fff}
.main .btn-ghost{border-color:var(--border);color:#111827;background:#fff}
.actions{display:flex;gap:10px;align-items:center;margin-top:14px;flex-wrap:wrap}

/* alerts */
.alert{border-radius:14px;padding:12px 12px;font-size:14px;border:1px solid var(--border);background:var(--soft)}
.alert-danger{border-color:rgba(220,38,38,.25);background:rgba(220,38,38,.08);color:#7f1d1d}
.alert-success{border-color:rgba(22,163,74,.25);background:rgba(22,163,74,.08);color:#14532d}
.alert-warn{border-color:rgba(245,158,11,.25);background:rgba(245,158,11,.10);color:#7c2d12}
.alert-info{border-color:rgba(37,99,235,.20);background:rgba(37,99,235,.08);color:#1e3a8a}

/* badges */
.badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700;border:1px solid var(--border);background:var(--soft);color:#111827}
.badge-ok{border-color:rgba(22,163,74,.25);background:rgba(22,163,74,.10);color:#14532d}
.badge-warn{border-color:rgba(245,158,11,.25);background:rgba(245,158,11,.12);color:#7c2d12}

/* tables */
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:14px}
.table{width:100%;border-collapse:separate;border-spacing:0;background:#fff}
.table th,.table td{padding:12px 12px;border-bottom:1px solid var(--border);vertical-align:top}
.table th{font-size:12px;color:#475467;text-transform:uppercase;letter-spacing:.05em;background:#fafafa}
.table tr:last-child td{border-bottom:none}
.cell-title{font-weight:700}
.cell-sub{font-size:12px;color:var(--muted);margin-top:2px}

/* filters */
.filters{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.filters select,.filters input[type="date"]{padding:10px 10px;border-radius:12px}

/* empty */
.empty{padding:18px;text-align:center}
.empty-title{font-weight:800;font-size:18px}
.empty-sub{color:var(--muted);margin-top:6px}

/* icon button & responsive sidebar */
.iconbtn{border:1px solid var(--border);background:#fff;border-radius:12px;padding:8px 10px;cursor:pointer}
@media (max-width: 900px){
  .sidebar{position:fixed;left:-280px;transition:left .2s ease;z-index:10}
  .sidebar.open{left:0}
  .content{padding:14px}
}

.badge-neutral{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#e9eefb;}


/* Reports quick stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.stat{background:rgba(15,23,42,.03);border:1px solid rgba(15,23,42,.08);border-radius:14px;padding:12px}
.stat-k{font-size:12px;color:var(--muted)}
.stat-v{font-size:22px;font-weight:700;margin-top:6px}
.stat-s{font-size:12px;color:var(--muted);margin-top:4px}
@media(max-width:900px){.stats{grid-template-columns:1fr}.stat-v{font-size:20px}}