style.css

@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:opsz,wght@6..12,200;6..12,300;6..12,400;6..12,500;6..12,600;6..12,700;6..12,800;6..12,900;6..12,1000&display=swap');

* {
    box-sizing: border-box;
}

body {
    background-color: #1B262C;
    color: whitesmoke;
    font-family: 'Nunito Sans', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin: 0;
    padding: 10px;
    height: 100vh;
}

h2 {
    margin: 10px 0 20px;
    text-align: center;
    font-size: 1.6rem;
}

.container {
    background-color: #E23E57;
    box-shadow: 0px 2px 10px rgba(255, 255, 255, 0.2);
    padding: 60px 30px 10px;
    width: 400px;
    max-width: 100%;
    border-radius: 10px;
}

.password-container {
    background-color: #1B262C;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    position: relative;
    font-size: 1.1rem;
    letter-spacing: 1px;
    padding: 12px 10px;
    height: 50px;
    width: 100%;
    border-radius: 8px;
    margin-top: 30px;
}

.password-container #password {
    word-wrap: break-word;
    max-width: calc(100%-40px);
}

.password-container .btn {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 40px;
    height: 40px;
    font-size: 18px;
    border-radius: 6px;
}

.btn {
    border: none;
    background-color: whitesmoke;
    color: #1B262C;
    font-size: 1rem;
    padding: 8px 12px;
    cursor: pointer;
    font-family: inherit;

}

.btn-large {
    display: block;
    width: 100%;
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 30px;
    border-radius: 8px;
    padding: 12px 10px;
}

.settings {
    margin-top: 30px;
}

.setting {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 15px 0;
    font-size: 1.1rem;
    font-weight: 700;
}

.large-checkbox {
    transform: scale(1.3);
}

.number {
    color: #1B262C;
    border: 2px solid #1B262C;
    border-radius: 5px;
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    padding: 3px;
}

.length input {
    width: 50px;
}

input {
    border: none;
}

input:focus {
    outline: none;
}

p {
    text-align: right;
    margin-top: 50px;
}