body {
    margin: 0;
    padding: 24px;
    background: #eef2f8;
    font-family: Arial, Helvetica, sans-serif;
}

.container {
    max-width: 760px;
    margin: 0 auto;
}

.card {
    background: white;
    border: 1px solid #d4deef;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 8px 22px rgba(0,0,0,0.08);
}

input[type="email"], input[type="password"] {
    width: 100%;
    max-width: 360px;
    padding: 8px;
    margin: 8px 0 14px 0;
    border: 1px solid #a7b6d1;
    border-radius: 4px;
}

button {
    background: #0b5ed7;
    border: 0;
    color: white;
    padding: 10px 16px;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 8px;
}

.ok { color: #1b6e33; margin-top: 12px; }
.error { color: #a40000; margin-top: 12px; }
.manual { margin-top: 16px; padding: 12px; background: #f7fbff; border-left: 4px solid #0b5ed7; }