html, body {
    height: 100%;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f5f5;
    color: #222;
}

.page {
    min-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border: 1px solid #e3e3e3;
    border-radius: 8px;
    padding: 22px;
    box-sizing: border-box;
}

.title {
    margin: 0 0 16px;
    font-size: 22px;
}

.label {
    display: block;
    margin: 12px 0 6px;
    font-size: 14px;
}

.input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #cfcfcf;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 14px;
}

.button {
    width: 100%;
    margin-top: 16px;
    padding: 10px 12px;
    border: 1px solid #2c2c2c;
    background: #2c2c2c;
    color: #fff;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.button:hover {
    background: #1f1f1f;
    border-color: #1f1f1f;
}

.alert {
    border: 1px solid #e0b4b4;
    background: #fff6f6;
    color: #9f3a38;
    padding: 10px 12px;
    border-radius: 6px;
    margin-bottom: 10px;
    font-size: 14px;
}

.hint {
    margin: 14px 0 0;
    font-size: 12px;
    color: #666;
}