* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;

    -webkit-user-select: none; /* Safari */
    -ms-user-select: none; /* IE 10 and IE 11 */
    user-select: none; /* Standard syntax */
}
.selectable {
    -webkit-user-select: auto; /* Safari */
    -ms-user-select: auto; /* IE 10 and IE 11 */
    user-select: auto; /* Standard syntax */
}

:root {
    --primary-color: #4891ff;
    --medium-primary-color: #3567f0;
    --light-color: #f4f4f6;
    --medium-light-color: #b4b4b4;
    --medium-dark-color: #292929;
    --medium-dark-color-ghost: #38383867;
    --dark-color: #1b1b1b;
    --darker-color: #111;
    --container-margin: max(60px, 50% - 1200px/2);
    --container-sm-margin: max(60px, 50% - 800px/2);
}

@font-face {
    font-family: 'Futura-medium';
    src: url(../fonts/FuturaCyrillicMedium.ttf);
}
@font-face {
    font-family: 'Futura-light';
    src: url(../fonts/FuturaCyrillicLight.ttf);
}

html {
    scroll-behavior: smooth;
    background-color: var(--darker-color);
}

body {
    font-family: 'Futura-medium', sans-serif;
    font-size: 16px;
    line-height: 1.5;
    background: #fff;
}

a {
    text-decoration: none;
    color: #333;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}


html {
    -ms-overflow-style: none;  /* Internet Explorer 10+ */
    scrollbar-width: none;  /* Firefox */
}
::-webkit-scrollbar { 
    display: none;  /* Safari and Chrome */
}


::selection {
    background: rgba(255, 255, 255, 0.3);
}
::-moz-selection {
    background: rgba(255, 255, 255, 0.3);
}

/* Navbar */
.navbar {
    z-index: 100;
    background: var(--dark-color);
    padding: 20px;
    position: fixed;
    top: 0px;
    width: 100%;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar .main-menu ul {
    display: flex;
}

.navbar ul li a {
    padding: 10px 20px;
    display: block;
    font-size: 30px;
    font-weight: 300;
}

:is(a, .btn) {
    color: var(--light-color);
    transition: color 0.35s;
}
:is(a, .btn):hover {
    color: var(--primary-color);
}
:is(a, .btn):focus {
    color: var(--medium-primary-color);
}

/* Splash */
.splash {
    position: relative;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100vh;
}
.splash p {
    color: var(--light-color);
    text-align: center;
    min-width: auto;
    min-height: auto;
    overflow: hidden;
}

/* Utility Classes */
.section {
    position: relative;
    background-color: var(--darker-color);
    left: 0px;
    width: 100%;
}

.container {
    max-width: 1200px;
    padding: 0 15px;
    margin-inline: var(--container-margin);
}
.container-sm {
    max-width: 800px;
    padding: 0 15px;
    margin-inline: var(--container-sm-margin);
}