* {
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    margin: 0;
    background: #0f172a;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: white;
}

.center {
    padding: 20px;
    width: 100%;
}

.card {
    background: #1e293b;
    padding: 25px;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
}

h2 {
    margin-top: 0;
    text-align: center;
}

input {
    width: 100%;
    padding: 14px;
    margin: 10px 0;
    border-radius: 8px;
    border: none;
    font-size: 16px;
}

button {
    width: 100%;
    padding: 14px;
    border-radius: 8px;
    border: none;
    background: #2563eb;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background: #1d4ed8;
}