body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    background: #f6f7fb;
    margin: 0;
}

.card {
    max-width: 380px;
    margin: 12vh auto;
    padding: 24px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, .06);
}

h1 {
    margin: 0 0 16px;
    font-size: 22px;
}

.row {
    display: grid;
    gap: 6px;
    margin-bottom: 12px;
}

label {
    font-weight: 600;
    font-size: 14px;
}

input {
    padding: 10px 12px;
    border: 1px solid #dadde3;
    border-radius: 10px;
    font-size: 16px;
}

.btn {
    width: 100%;
    padding: 10px 12px;
    border: 0;
    border-radius: 10px;
    background: #2b7cff;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

.err {
    color: #c00;
    margin-top: 10px;
    min-height: 20px;
}

.logo {
    display: block;
    margin: 0 auto 20px;
    width: auto;
}