body {
    font-family: Arial;
    background: #0f172a;
    color: white;
    margin: 0;
}

.center {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.card {
    background: #1e293b;
    padding: 20px;
    border-radius: 10px;
    width: 300px;
}

input, select {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
}

button {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
}

header {
    background: #1e293b;
    padding: 10px;
    display: flex;
    justify-content: space-between;
}

.container {
    padding: 20px;
}

table {
    width: 100%;
    background: #1e293b;
    border-collapse: collapse;
}

td, th {
    padding: 10px;
    border-bottom: 1px solid #334155;
}