body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background: #f4f6f9;
    color: #222;
}

.navbar {
    background: linear-gradient(90deg, #0f172a, #1e293b);
    color: white;
    padding: 14px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.navbar .logo {
    font-size: 22px;
    font-weight: bold;
}

.navbar a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-weight: 500;
}

.navbar a:hover {
    text-decoration: underline;
}

.container {
    padding: 25px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
}

th, td {
    padding: 12px;
    border-bottom: 1px solid #eee;
    text-align: left;
}

th {
    background: #1e293b;
    color: white;
}

.btn {
    background: #2563eb;
    color: white;
    padding: 8px 14px;
    border-radius: 6px;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    background: #1d4ed8;
}