:root{
    --bg:#f4f7fb;
    --panel:#ffffff;
    --sidebar:#202b36;
    --sidebar2:#17212b;
    --primary:#16a34a;
    --accent:#06b6d4;
    --text:#1f2937;
    --muted:#6b7280;
    --danger:#dc2626;
    --border:#e5e7eb;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
.app-shell{min-height:100vh;display:flex}
.sidebar{width:260px;background:linear-gradient(180deg,var(--sidebar),var(--sidebar2));color:#fff;padding:22px 14px;position:fixed;inset:0 auto 0 0}
.brand{font-size:24px;font-weight:800;padding:8px 12px 24px}.brand span{color:#35d07f}
.user-box{background:rgba(255,255,255,.07);padding:14px;border-radius:12px;margin-bottom:16px}
.user-box small{display:block;color:#b8c1cc;margin-top:4px}
nav{display:grid;gap:7px}
nav a{color:#edf2f7;text-decoration:none;padding:12px 14px;border-radius:10px}
nav a:hover{background:rgba(255,255,255,.1)}
.main{margin-left:260px;width:calc(100% - 260px);padding:28px}.main.full{margin-left:0;width:100%}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:0 10px 30px rgba(17,24,39,.05)}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.stat strong{display:block;font-size:30px;margin-top:8px}.muted{color:var(--muted)}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden}
th,td{padding:13px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
th{background:#f8fafc}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;border:0;background:var(--primary);color:#fff;text-decoration:none;cursor:pointer}
.btn.secondary{background:#475569}.btn.danger{background:var(--danger)}.btn.info{background:var(--accent)}
form .row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
label{display:block;font-weight:700;margin-bottom:6px}
input,select,textarea{width:100%;padding:12px;border:1px solid var(--border);border-radius:10px;background:#fff}
.field{margin-bottom:16px}
.alert{padding:12px 14px;border-radius:10px;margin-bottom:14px}.alert.success{background:#dcfce7}.alert.error{background:#fee2e2}
.login-wrap{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top,#164e63,#0f172a 55%,#020617)}
.login-card{width:min(430px,92vw);background:rgba(255,255,255,.96);padding:30px;border-radius:22px;box-shadow:0 25px 80px rgba(0,0,0,.35)}
.login-card h1{margin-top:0}.actions{display:flex;gap:8px;flex-wrap:wrap}
.badge{display:inline-block;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:700;background:#e2e8f0}
.badge.active{background:#dcfce7;color:#166534}.badge.disabled{background:#fee2e2;color:#991b1b}
@media(max-width:900px){
    .sidebar{position:static;width:100%}.app-shell{display:block}.main{margin-left:0;width:100%;padding:16px}
    .grid{grid-template-columns:1fr}.sidebar nav{grid-template-columns:repeat(2,1fr)}
    form .row{grid-template-columns:1fr}
    table{display:block;overflow-x:auto}
}