* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    min-height: 100%;
    margin: 0;
}

body {
    background: #f3f3f3;
    font-family: Arial, Helvetica, sans-serif;
}

.login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

form {
    width: 320px;
    max-width: 100%;
}

input,
button {
    width: 100%;
    height: 44px;
    border-radius: 3px;
    font: inherit;
}

input {
    display: block;
    margin-bottom: 10px;
    padding: 0 13px;
    border: 1px solid #ddd;
    outline: none;
    background: #fff;
    color: #333;
    font-size: 13px;
}

input:focus {
    border-color: #aaa;
}

input::placeholder {
    color: #aaa;
}

button {
    margin-top: 2px;
    border: 0;
    background: #233746;
    color: #fff;
    cursor: pointer;
    font-size: 13px;
}

button:hover {
    background: #1d2d3a;
}

.error {
    margin-bottom: 10px;
    color: #b33;
    text-align: center;
    font-size: 12px;
}