@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap');

:root {
    --color-dark-grey: #1B1B1B;
    --color-background-1: #ffffff;
    --color-background-2: #f7f6f6;
    --color-white: #fff;
    --color-white-hover: #ccc;
    --color-black: #000;
    --shadow: 3px 3px 9px black;
    --shadow-lower: 1px 3px 5px black;
    --color-light-grey: #888888;
    --color-blue: #4569b1;
    --color-dark-blue: #2546aa;
}
html{
    scroll-behavior: smooth;
}


*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
    font-family: "Montserrat";
    text-decoration: none;
    list-style-type: none;
}
body{
    height: 100vh;
}
main{
    display: flex;
    flex-direction: column;
    align-items: center;
}
.light{
    background-color: var(--color-background-1);
}
.dark{
    background-color: var(--color-background-2);
}
section{
    display: flex;
}

i, p, h1, h2{
    color: #fff;
}

.header-main{
    user-select: none;
    margin-bottom: 20px;
}
.header-main h1{
    font-size: 40px;
    color: var(--color-blue);
}

.to-top {
    background-color: var(--color-white);
    z-index: 10000;
    position: fixed;
    bottom: 16px;
    right: 18px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #1f1f1f;
    text-decoration: none;
    opacity: 0;
    pointer-events: none;
    transition: all .4s;
    box-shadow: var(--shadow-lower);
  }
  .to-top.active{
    bottom: 18px;
    pointer-events: auto;
    opacity: 1;
  }
  .to-top:hover{
    background-color: var(--color-white-hover);
  }
  .to-top i{
    color: var(--color-black);
  }



  .sections {
    width: 100%;
    max-width: 1350px;
    margin: 0 auto;
    padding: 0 50px;
}

@media (max-width: 1024px) {
    .sections {
        padding: 0 40px;
    }
}

@media (max-width: 768px) {
    .sections {
        padding: 0 30px;
    }
}