*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    list-style: none;
    font-family: Arial, Helvetica, sans-serif;
    border-radius: 10px;
}

body{
    background-color: #f0f0f0;
    color: #444;
    min-height: 100vh;
}

header{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    height: 100px;
    max-width: 1200px;
    width: 90%;
    background: white;
    margin: auto;

}

nav {
    display: flex;
    gap: 1rem;
}
.container{
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
    justify-content: center;
    max-width: 800px;
    width: 90%;
    margin: auto;
    background: white;
    padding: 2rem;
    margin-top: 100px;
    box-shadow: 10px 10px;
}

h1{
    background: blue;
    padding: 1rem 0.3rem;
    color: white;
}

.app{
    border: 2px solid #999;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 80%;
}

.result{
    padding: 1rem;
    border: 2px solid #444;
    width: 100%;
    font-size: 1rem;
}

button {
    padding: 0.8rem 0;
    background: blue;
    color: white;
    border: none;
    font-size: 1.2rem;
    transition: all 0.3s;
}

button:hover{
    background: darkblue;
}

label {
    border: 1px solid ;
    width: fit-content;
    padding: 0.4rem;
}

#range {
    max-width: 200px;
    width: 100%;
}

@media (max-width:700px) {
    .container{
        padding: 1rem;
    }
    .app{
        width: 100%;
    }
    h1{
        font-size: 1rem;
    }
    button {
        font-size: 0.9rem;
    }

    #range{
        width: 100%;
    }
}