:root{
  --brand:#4f46e5; --brand-d:#4338ca; --brand-2:#0ea5e9;
  --ink:#0f172a; --muted:#64748b; --line:#e5e9f0; --bg:#f6f8fb; --card:#fff;
  --ok:#16a34a; --warn:#d97706; --bad:#dc2626; --soft:#eef2ff;
  --radius:14px; --sb:250px;
  --font:"Inter","Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{margin:0 0 .4rem;letter-spacing:-.3px}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-size:14.5px;border-radius:10px;padding:.62rem 1.1rem;border:1px solid transparent;cursor:pointer;transition:.15s;font-family:var(--font)}
.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-d)}
.btn-light{background:#fff;border-color:var(--line);color:var(--ink)}.btn-light:hover{border-color:var(--brand);color:var(--brand)}
.btn-danger{background:#fff;border-color:#f3c7c3;color:var(--bad)}.btn-danger:hover{background:#fdecea}
.btn-sm{padding:.4rem .75rem;font-size:13px}
.btn-block{width:100%;justify-content:center}
.field{display:block;margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:.65rem .8rem;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:var(--font);background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.alert{padding:.7rem 1rem;border-radius:10px;font-size:14px;margin-bottom:14px}
.alert-danger,.msg.err{background:#fdecea;color:#b3261e;border:1px solid #f3c7c3}
.alert-success,.msg.ok{background:#e7f6ec;color:#15803d;border:1px solid #bbe6c8}
.msg{display:none;padding:.7rem 1rem;border-radius:10px;font-size:14px;margin-bottom:14px}
.msg.show{display:block}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.badge{display:inline-flex;align-items:center;gap:.35rem;font-size:12px;font-weight:700;padding:.2rem .6rem;border-radius:999px}
.b-ok{background:#e7f6ec;color:#15803d}.b-warn{background:#fef3e2;color:#b45309}.b-bad{background:#fdecea;color:#b3261e}.b-info{background:var(--soft);color:var(--brand-d)}

/* Auth / public */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1.1fr 1fr}
.auth-hero{background:linear-gradient(160deg,#4f46e5,#0ea5e9);color:#fff;padding:56px;display:flex;flex-direction:column;justify-content:center}
.auth-hero h1{font-size:34px;color:#fff}
.auth-hero p{opacity:.92;font-size:16px;max-width:420px}
.auth-hero ul{list-style:none;padding:0;margin:22px 0 0}
.auth-hero li{padding:6px 0;display:flex;gap:.6rem;align-items:center}
.auth-form{display:flex;align-items:center;justify-content:center;padding:40px}
.auth-box{width:100%;max-width:400px}
.auth-box .brand{font-weight:800;font-size:22px;margin-bottom:6px}
.auth-box .brand b{color:var(--brand)}
@media(max-width:880px){.auth-wrap{grid-template-columns:1fr}.auth-hero{display:none}}

/* Dashboard shell */
.shell{display:grid;grid-template-columns:var(--sb) 1fr;min-height:100vh}
.sidebar{background:#0f172a;color:#cbd5e1;padding:18px 14px;position:sticky;top:0;height:100vh;overflow:auto}
.sb-brand{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:19px;color:#fff;padding:6px 8px 18px}
.sb-brand .mk{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#4f46e5,#0ea5e9);display:grid;place-items:center;color:#fff;font-weight:900}
.nav-i{display:flex;align-items:center;gap:.7rem;padding:.6rem .8rem;border-radius:10px;color:#cbd5e1;font-size:14.5px;font-weight:500;margin-bottom:2px}
.nav-i:hover{background:#1e293b;color:#fff}
.nav-i.active{background:var(--brand);color:#fff}
.nav-i .ic{width:18px;text-align:center;opacity:.9}
.sb-sep{border-top:1px solid #1e293b;margin:12px 4px}
.main{min-width:0;display:flex;flex-direction:column}
.topbar{background:#fff;border-bottom:1px solid var(--line);height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:20}
.topbar .tt{font-weight:700;font-size:16px}
.userchip{display:flex;align-items:center;gap:.6rem}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--soft);color:var(--brand-d);display:grid;place-items:center;font-weight:800}
.content{padding:24px;max-width:1150px;width:100%}
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.page-head h1{font-size:23px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.stat span{color:var(--muted);font-size:13px}
.stat b{display:block;font-size:28px;margin-top:4px}
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{text-align:left;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.4px;padding:10px 12px;border-bottom:1px solid var(--line)}
.table td{padding:11px 12px;border-bottom:1px solid var(--line)}
.table tr:hover td{background:#fafbfe}
.table .empty{text-align:center;color:var(--muted);padding:26px}
.burger{display:none;background:none;border:0;font-size:22px;cursor:pointer}
.pbar{height:7px;background:#eef2f7;border-radius:6px;overflow:hidden}
.pbar span{display:block;height:100%;background:var(--brand);transition:width .4s}
@media(max-width:820px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;z-index:60;width:250px;transform:translateX(-100%);transition:.2s}
  .sidebar.open{transform:none}
  .burger{display:block}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}