:root{
    --white: #fff;
    --black: #000;
    --font-color-dark: #212529;
    --font-color-light: #9b9b9b;
    --font-color-link: rgb(34, 119, 230);

    --contrast: rgba(246, 248, 249, 0.8);

    --size-10: 0.625rem;
    --size-14: 0.875rem;
    --size-16: 1rem;
    --size-18: 1.125rem;
    --size-20: 1.25rem;
    --size-30: 1.875rem;
    --size-40: 2.5rem;
    --size-50: 3.125rem;
    --size-100: 6.25rem;
    --size-150: 9.375rem;
 
}

*,
::after,
::before{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {scroll-behavior: smooth;}

body{
    font-family: "Open Sans", sans-serif;
    font-weight: 400;
    font-size: var(--size-16);
    line-height: 1.6;
    letter-spacing: 0;
    color: var(--font-color-base);
}

.page{
    max-width: 1000px;
    margin: 0 auto;
}

h1{
    font-size: var(--size-40);
}

h2{
    font-size: 1.625rem;
    font-weight: 700;
    text-align: center;
    color: #000;
}

img{
    width: 100%;
}

.subhead{color: #677788;}

.container{
    width: 100%;
    padding-left: 15px;
    padding-right: 15px;
    margin-left: auto;
    margin-right: auto;
}

.btn{
    display: inline-block;
    font-weight: 400;  
    color: var(--white);
    text-align: center;
    cursor: pointer;
    user-select: none; 
    background-color: #2476FF;
    border: 1px solid transparent;
    padding: 0.375rem 0.75rem;
    border-radius: var(--size-20);
    transition: ease-in-out 0.3s;
    text-decoration: none;
}


.btn-white{
    background-color: var(--white);
    color: var(--font-color-link);
    box-shadow: 0px 10px 20px rgba(255, 255, 255, 0.35);
    padding: 0.475rem 1.75rem;
}

.learn_btn{
    text-decoration: none;
    color: var(--font-color-link);
    font-weight: 600;
}