:root
{
    background-color: #ecf5ff;
    font-size: 62.5%;
}
*
{
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;                     
    padding: 0;
    margin: 0;
    color: #333;
} 
h1,
h2,
h3,
h4
{
    margin-bottom: 1rem;
}
h1
{
    font-size:5.4rem;
    color: #56a5eb;
    margin-bottom: 5rem;

}
h1>span
{
    font-size: 2.4rem;
    font-weight: 500;

}
h2
{
    font-size: 4.2rem;
    margin-bottom: 4rem;
    font-weight: 700;
}
h3
{
    font-size: 2.8rem;
    font-weight: 500;
}

/*============= UTILITIES ===============*/

.container
{
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 80rem;
    margin: 0 auto;
    padding: 2rem;
    

}
.container > *
{
    width: 100%;

}
.flex-column
{
    display: flex;
    flex-direction: column;
}
.flex-center
{
    justify-content: center;
    align-items: center;
}
.justify-center
{
    justify-content: center;
}
.text-center
{
    text-align: center;
}
.hidden
{
    display: none;
}

/* ================Buttons==================== */

.btn
{
    font-size: 1.8rem;
    padding: 1rem 0;
    width: 20rem;
    text-align: center;
    border: 0.1rem  solid #56a5eb;
    margin-bottom: 1rem;
    text-decoration: none;
    color: #56a5eb;
    background-color: #fff;
}
.btn:hover
{
    cursor: pointer;
    box-shadow: 0 0.4rem 1.4rem 0 rgba(86, 185, 235, 0.5) ;
    transform: translateY(0.1rem);
    transition: transform 150ms ease-in-out;
}

.btn[disabled]:hover
{
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}



/* form of end html */
form
{
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

input
{
    margin-bottom: 1rem;
    width: 20rem;
    padding: 1.5rem;
    font-size: 1.8rem;
    border: none;
    box-shadow: 0 0.1rem 1.4rem 0 rgba(86, 185, 235, 0.5);


}
input::placeholder
{
    color: #aaa;
}