:root{
    --pure: #fff;
    --primary: #2980b9;
    --dark-text: #333;
}
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    color: var(--dark-text);
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 40px;
}

header{
    background-color: var(--primary);
    color: var(--pure);
    position: fixed;
    top: 0;
    text-align: center;
    align-content: center;
    width: 100%;
    height: 80px;
}

footer{
    background-color: var(--primary);
    color: var(--pure);
    text-align: center;
    align-content: center;
    position: fixed;
    bottom: 0;
    width: 100%;
    height: 80px;
}

.container{
    background: var(--pure);
    width: 96%;
    height: 75%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    background-color: var(--pure);
    padding: 30px 20px;
    border-radius: 10px;
}

.contain{
    margin: 3rem;
    font-size: large;
}

h2{
    text-align: center;
    margin-bottom: 20px;
    color: #2c3250;
}

label {
    font-size: 14px;
    margin-right: 10px;
}

input[type="number"],
input[type="range"],
input[type="text"] {
    margin: 8px 0;
    padding: 0px;
    border: 1px solid var(--pure);
    border-radius: 6px;
    gap: 10px;
}

input[type="text"] {
    width: 75%;
    height: 35px;
    font-weight: bold;
    text-align: center;
}

button{
    background: #3498db;
    color: var(--pure);
    border: none;
    padding:10px 14px;
    border-radius: 6px;
    cursor: pointer;
    margin: 5px;
    transition: #3498db 0.3s ease;
}

button:hover {
    background: var(--primary);
}

.strength {
    margin-top: 15px;
    font-size: 14px;
    font-weight: bold;
}

.bar {
    width: 100%;
    height: 10px;
    background: #eee;
    border-radius: 6px;
    margin-top: 6px;
    overflow: hidden;
}

.bar>i {
    display: block;
    height: 100%;
    width: 0%;
    background: #ff6b6b;
    background: linear-gradient(90deg, #ff6b6b, #ffd166, #06d6a0);
    transition: width .25s ease;
}

.row {
    margin: 12px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
/*
input[type="number"] {
    width: 80px;
    padding: 6px;
}

.strengthText {
    font-weight: 600;
    font-size: 13px;
}

.checkboxes label {
    margin-right: 8px;
}
*/