:root{
  --bg:#0f172a; --panel:#1e293b; --panel2:#243244; --border:#334155;
  --text:#e2e8f0; --muted:#94a3b8; --accent:#38bdf8; --accent-dark:#0ea5e9;
  --danger:#f87171; --success:#4ade80;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--accent);text-decoration:none}

.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh}
.login-card{background:var(--panel);padding:36px;border-radius:14px;width:360px;box-shadow:0 20px 40px rgba(0,0,0,.4)}
.login-card h1{margin:0;font-size:26px;letter-spacing:1px}
.login-card .sub{color:var(--muted);margin:2px 0 20px;font-size:13px}
.login-card label{display:block;font-size:13px;margin:12px 0 4px;color:#cbd5e1}
.login-card input{width:100%;padding:10px;border-radius:7px;border:1px solid var(--border);background:var(--bg);color:var(--text)}
.login-card button{width:100%;margin-top:22px;padding:12px;border:none;border-radius:8px;background:var(--accent);color:var(--bg);font-weight:700;cursor:pointer}
.login-card button:hover{background:var(--accent-dark)}

.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:20px 0;flex-shrink:0}
.sidebar .brand{font-size:20px;font-weight:800;letter-spacing:1px;padding:0 20px 20px;color:var(--accent)}
.sidebar nav{display:flex;flex-direction:column}
.sidebar nav a{padding:10px 20px;color:var(--text);font-size:14px;border-left:3px solid transparent}
.sidebar nav a:hover{background:var(--panel2);border-left-color:var(--accent)}

.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:18px 28px;border-bottom:1px solid var(--border)}
.topbar h1{font-size:19px;margin:0}
.user-menu{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted)}
.btn-link{color:var(--danger)}
.content{padding:24px 28px}

.alert{padding:11px 16px;border-radius:8px;margin-bottom:18px;font-size:14px}
.alert-success{background:#064e3b;border:1px solid #065f46;color:#bbf7d0}
.alert-error{background:#7f1d1d;border:1px solid #991b1b;color:#fecaca}

.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.btn{display:inline-block;padding:9px 16px;border-radius:7px;border:none;background:var(--accent);color:var(--bg);font-weight:600;cursor:pointer;font-size:14px}
.btn:hover{background:var(--accent-dark)}
.btn-danger{background:var(--danger);color:#1a0505}
.btn-sm{padding:5px 10px;font-size:12px}

table{width:100%;border-collapse:collapse;background:var(--panel);border-radius:10px;overflow:hidden}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:13.5px}
th{background:var(--panel2);color:var(--muted);font-weight:600;text-transform:uppercase;font-size:11.5px;letter-spacing:.4px}
tr:last-child td{border-bottom:none}
tr:hover td{background:#1a2740}

.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:600}
.badge-active{background:#064e3b;color:#86efac}
.badge-inactive{background:#450a0a;color:#fca5a5}

.form-card{background:var(--panel);padding:24px;border-radius:10px;max-width:640px}
.form-card label{display:block;font-size:13px;margin:14px 0 5px;color:#cbd5e1}
.form-card input,.form-card select,.form-card textarea{width:100%;padding:9px 10px;border-radius:6px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-family:inherit}
.form-card textarea{min-height:100px}
.form-actions{margin-top:22px;display:flex;gap:10px}

.empty-state{text-align:center;padding:50px 20px;color:var(--muted)}