body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.card {
    background: #1e1e2e;
    padding: 25px;
    border-radius: 16px;
    width: 320px;
    text-align: center;
}

.brand {
    font-size: 1.6rem;
    font-weight: bold;
}

.subtitle {
    font-size: 0.85rem;
    color: #bbb;
}

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

button {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    border: none;
    border-radius: 25px;
    background: #00c6ff;
    font-weight: bold;
    cursor: pointer;
}

.secondary {
    background: #444;
}

.qr {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 15px;
}

.desc {
    font-size: 0.8rem;
    color: #aaa;
}