*{box-sizing:border-box} body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f7fb;color:#222}
.layout{display:flex;min-height:100vh}
.sidebar{width:250px;background:#152238;color:#fff;padding:20px}
.brand{font-size:22px;font-weight:700;margin-bottom:20px}
.userbox{background:#20314d;border-radius:12px;padding:12px;margin-bottom:16px}
.sidebar nav a{display:block;color:#fff;text-decoration:none;padding:10px 12px;border-radius:10px;margin:4px 0}
.sidebar nav a:hover{background:#27405f}
.content{flex:1;padding:24px}
.card{background:#fff;border-radius:16px;padding:18px;box-shadow:0 4px 16px rgba(0,0,0,.06);margin-bottom:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.stat{font-size:28px;font-weight:700;margin-top:8px}
label{display:block;font-weight:600;margin:8px 0 6px}
input,select,textarea,button{width:100%;padding:12px;border:1px solid #d6dce5;border-radius:10px;font-size:14px}
button{background:#152238;color:#fff;border:none;cursor:pointer;font-weight:700}
button:hover{opacity:.95}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:12px;border-bottom:1px solid #edf0f5;text-align:left;font-size:14px}
th{background:#f8fafc}
.alert{background:#e9f7ef;border:1px solid #b7e4c7;color:#155724;padding:12px;border-radius:10px;margin-bottom:15px}
.error{background:#fff0f0;border:1px solid #f5bcbc;color:#8a1c1c;padding:12px;border-radius:10px;margin-bottom:15px}
.muted{color:#667085}
.row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.badge{display:inline-block;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700;background:#eef2ff}
.login-wrap{max-width:420px;margin:70px auto}
@media (max-width: 900px){.sidebar{width:100px}.sidebar .brand,.sidebar .userbox,.sidebar nav a{font-size:12px}.content{padding:12px}.row{grid-template-columns:1fr}}