body {
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #ffffff, #737479);
    color: #000;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.container {
    background: #c7c8cc;
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    max-width: 400px;
    width: 100%;
}

.sidebar {
    width: 240px;
    height: 100vh;
    position: fixed;
    background: #020617;
    padding: 20px;
}

.sidebar h2 {
    color: #38bdf8;
    margin-bottom: 30px;
}

.sidebar a {
    display: block;
    color: #94a3b8;
    padding: 10px;
    text-decoration: none;
    border-radius: 8px;
}

.sidebar a:hover {
    background: #1e293b;
    color: #fff;
}

.main {
    margin-left: 260px;
    padding: 30px;
}

.card {
    background: #020617;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.btn {
    background: #000;
    border: none;
    padding: 10px 15px;
    border-radius: 8px;
    color: black;
    cursor: pointer;
}

.btn-home {
    background: #000;
    color: #fff;
    border-radius: 10px;
    padding: 10px 20px;
    font-weight: 500;
}

.btn-home:hover {
    background: #3d3d3d;
    color: #fff;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.badge {
    padding: 5px 10px;
    border-radius: 6px;
}

.active {
    background: #22c55e;
}

.inactive {
    background: #ef4444;
}