@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;700&display=swap");
:root {
  --header-height: 3.5rem;

  /*========== Colors ==========*/
  /* Color mode HSL(hue, saturation, lightness) */
  --hue: 228;
  --first-color: hsl(var(--hue), 45%, 42%);
  --title-color: #fff;
  --text-color: hsl(var(--hue), 8%, 65%);
  --body-color: hsl(var(--hue), 26%, 11%);
  --container-color: hsl(var(--hue), 22%, 12%);
  --container-color-light: hsl(var(--hue), 21%, 14%);
  --border-color: hsl(var(--hue), 23%, 24%);
  --black: #000;

  /*========== Font and typography ==========*/
  /* .5rem = 8px | 1rem = 16px ... */
  --body-font: "Montserrat", sans-serif;
  --big-font-size: 2.5rem;
  --h1-font-size: 1.75rem;
  --h2-font-size: 1.5rem;
  --h3-font-size: 1.25rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --smaller-font-size: 0.625rem;

  /*========== Font weight ==========*/
  --weight-400: 400;
  --weight-500: 500;
  --weight-700: 700;

  /*========== Transition ==========*/
  --transition: ease-in-out;
}

/*========== Responsive typography ==========*/
@media screen and (max-width: 992px) {
  :root {
    --big-font-size: 1.75rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1rem;
    --normal-font-size: 0.938rem;
    --small-font-size: 0.813;
  }
}

/*=============== BASE ===============*/
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--body-color);
  color: var(--text-color);
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
}

h1,
h2,
h3,
h4 {
  color: var(--title-color);
  font-weight: var(--weight-700);
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

p {
  line-height: 1.6;
}

img {
  max-width: 100%;
}

.container {
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: 0.75rem;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
}
/*=============== REUSABLE CSS CLASSES ===============*/
.container {
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: 0.75rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.section {
  padding-block: 4rem 3.5rem;
}

.section__title {
  font-size: var(--h1-font-size);
  margin-bottom: 1.75rem;
}
/*=============== HEADER & NAV ===============*/

.nav {
  height: calc(var(--header-height) + 1rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__list {
  display: flex;
  column-gap: 1.75rem;
}

.nav__link {
  color: var(--title-color);
  transition: all 0.3s var(--transition);
}

.nav__close,
.nav__toggle {
  display: none;
}

.nav__link:hover,
.active-link {
  color: var(--first-color);
}

/*=============== HEADING ===============*/
.heading {

  position: relative;
  top: 100px;
  margin-left: 664px;
}

/*=============== VIDEO ===============*/


.first__video {

  position: absolute;
  top: 153px;
  left: 332px;
  height: 500px;
}

/*=============== FOOTER ===============*/
.footer__bottom {
  background-color: var(--first-color);
  padding-block: 0;
  position: absolute;
  bottom: 0;
  width: 100%;
}

.footer__copyright {
  columns: var(--title-color);
  text-align: center;
}