style.css

body {
    background: linear-gradient(to right, #e6e9f0, #eef1f5); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    font-size: 16px; 
    font-weight: 300; 
    line-height: 1.6;
    color: #212529;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
}

h1 {
    width: fit-content; 
    margin-left: auto; 
    margin-right: auto; 
}

label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    background-color: transparent; 
    color: #858dde; 
    border: 2px solid #858dde; 
    border-radius: 25px; 
    cursor: pointer;
    transition: all 0.3s ease;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    border: none; 
    border-radius: 15px; 
    background-color: #ffffff; 
    box-shadow: 0 4px 8px rgba(0,0,0,0.1); 
    width: auto; 
    max-width: 600px; 
    margin: auto;
}

.text label {
    display: block;
    margin-top: 5px;
    margin-bottom: 5px;
    text-align: center;
}

.buttons {
    background-color: #db0f75; 
    color: #ffffff;
    border: none; 
    border-radius: 25px; 
    padding: 15px 30px;
    margin: 15px;
    transition: background-color 0.3s ease, color 0.3s ease; 
    cursor: pointer;
}

.key label {
    display: block;
    margin-bottom: 5px;
    text-align: center;
}

.buttons:hover, label:hover {
    background-color: #f5f5f5; 
    color: #db0f75; 
}