*, *::before, *::after {
    box-sizing: border-box;
}
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #eef1f7;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px 16px;
}
.card {
    width: 100%;
    max-width: 380px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    padding: 24px;
}
h1 {
    margin: 0 0 6px;
    font-size: 22px;
}
p {
    margin: 0 0 18px;
    color: #6b7280;
    font-size: 14px;
}
.field {
    display: block;
    margin-bottom: 12px;
}
.field input {
    width: 100%;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 14px;
    box-sizing: border-box;
}
.remember {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    margin-bottom: 14px;
}
.btn {
    width: 100%;
    border: 0;
    border-radius: 8px;
    padding: 10px;
    background: #3c8dbc;
    color: #fff;
    cursor: pointer;
    font-weight: 700;
}
.hint {
    margin-top: 14px;
    font-size: 12px;
    color: #6b7280;
}
.error {
    color: #b91c1c;
    font-size: 13px;
    margin-bottom: 10px;
}