:root{
  --rdn-primary:#ff4433;
  --rdn-primary-dark:#e5391e;
  --rdn-dark:#272727;
  --rdn-muted:#5e5e5e;
  --rdn-border:#e5e5e5;
  --rdn-bg:#f7f7f7;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--rdn-bg);
  color:var(--rdn-dark);
}
.rdn-topbar{
  display:flex;align-items:center;justify-content:space-between;
  background:#fff;border-bottom:1px solid var(--rdn-border);
  padding:14px 28px;
}
.rdn-topbar .brand{display:flex;align-items:center;gap:10px;font-weight:700}
.rdn-topbar .brand img{height:28px}
.rdn-topbar a.logout{color:var(--rdn-muted);text-decoration:none;font-size:.9rem}
.rdn-topbar a.logout:hover{color:var(--rdn-primary)}
.rdn-container{max-width:1100px;margin:0 auto;padding:32px 24px}
.rdn-login-wrap{display:flex;min-height:100vh;align-items:center;justify-content:center}
.rdn-card{background:#fff;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.08);padding:40px}
.rdn-login-wrap .rdn-card{width:380px}
.rdn-card h1{font-size:1.3rem;margin:0 0 24px}
.rdn-field{margin-bottom:16px}
.rdn-field label{display:block;font-size:.85rem;color:var(--rdn-muted);margin-bottom:6px}
.rdn-field input{width:100%;padding:10px 12px;border:1px solid var(--rdn-border);border-radius:6px;font-size:1rem}
.rdn-btn{display:inline-block;background:var(--rdn-primary);color:#fff;border:none;padding:10px 24px;border-radius:6px;font-weight:600;cursor:pointer;text-decoration:none;font-size:.95rem}
.rdn-btn:hover{background:var(--rdn-primary-dark);color:#fff}
.rdn-btn.secondary{background:#fff;color:var(--rdn-dark);border:1px solid var(--rdn-border)}
.rdn-btn.secondary:hover{background:var(--rdn-bg)}
.rdn-btn.danger{background:#fff;color:var(--rdn-primary);border:1px solid var(--rdn-primary)}
.rdn-btn.danger:hover{background:var(--rdn-primary);color:#fff}
.rdn-alert{padding:10px 14px;border-radius:6px;margin-bottom:16px;font-size:.9rem}
.rdn-alert.error{background:#fdeceb;color:#b3261e}
.rdn-alert.success{background:#e8f5e9;color:#1b5e20}
table.rdn-table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 4px rgba(0,0,0,.06)}
table.rdn-table th, table.rdn-table td{padding:10px 14px;border-bottom:1px solid var(--rdn-border);text-align:left;font-size:.9rem}
table.rdn-table th{background:var(--rdn-bg);font-weight:600}
table.rdn-table tr:hover td{background:#fffaf9}
.rdn-actions{display:flex;gap:8px}
.rdn-empty{color:var(--rdn-muted);padding:40px;text-align:center;background:#fff;border-radius:8px}
.rdn-back{display:inline-block;margin-bottom:16px;color:var(--rdn-muted);text-decoration:none;font-size:.9rem}
.rdn-back:hover{color:var(--rdn-primary)}
.rdn-scroll{overflow-x:auto}