*,
*::before,
*::after {
  box-sizing: border-box;
  text-decoration: none;
}

:root {
  --font-family-oswald: "Oswald";
  --clr-nav: #2e323f;
  --clr-section: #3b4050;
  --clr-section-1: #6f737f31;
  --fnt-clr-title: #a59678;
}

body {
  margin: 0;
  font-family: "Montserrat", sans-serif;
  font-size: 16px;
  background-color: #ffffff;
}

img {
  max-width: 100%;
}

h1,
h2 {
  font-family: var(--font-family-oswald);
  color: var(--fnt-clr-title);
}

/* Navbar */
header {
  background: var(--clr-nav);
  padding: 1em 0;
  text-align: center;
}

.nav {
  width: 100%;
}

.nav-toggle {
  cursor: pointer;
  border: 0;
  width: 3em;
  height: 3em;
  padding: 0em;
  border-radius: 50%;
  background: #072a2d;
  color: white;
  transition: opacity 250ms ease;
  position: absolute;
  left: 0;
}

.nav-toggle:focus,
.nav-toggle:hover {
  opacity: 0.75;
}

.hamburger {
  width: 50%;
  position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  margin: 0 auto;
  height: 3px;
  background: white;
}

.hamburger::before,
.hamburger::after {
  content: "";
  width: 100%;
}

.hamburger::before {
  transform: translateY(-6px);
}

.hamburger::after {
  transform: translateY(3px);
}

.nav {
  visibility: hidden;
  height: 0;
  position: absolute;
}

.nav--visible {
  visibility: visible;
  height: auto;
  position: relative;
}

.nav__list {
  display: flex;
  flex-direction: column;
  padding: 0;
  gap: 1.5em;
}

.nav__list--secondary {
  margin: 3em 0;
}

.nav__item {
  list-style-type: none;
  text-transform: uppercase;
}

.nav__link {
  text-decoration: none;
  color: white;
  font-size: 1.125rem;
  font-weight: 700;
}

.nav__link--button {
  background-color: var(--fnt-clr-title);
  padding: 0.3em 1em;
  border-radius: 20px;
}

.nav__link:hover,
.nav__link:focus {
  opacity: 0.65;
}

.logo {
  height: 30px;
}
/* Navbar End */

/* Hero */
.hero {
  padding: 3em 0;
  background-color: var(--clr-section);
  color: #fff;
}

.hero__text-title {
  color: #ffffff;
  font-size: 3rem;
  margin-top: 0;
}

.hero__text-title-highlight {
  color: var(--fnt-clr-title);
}

.hero__text-learn p {
  margin-bottom: 3em;
}

.btn {
  display: inline-block;
  text-decoration: none;
  text-transform: uppercase;
  color: white;
  font-weight: 900;
  background-color: var(--fnt-clr-title);
  padding: 0.75em 2em;
  border-radius: 100px;
}

.btn:hover,
.btn:focus {
  opacity: 0.75;
}

.container {
  width: 80%;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}
/* Hero End*/

/* Advantages*/
.advantages {
  background-color: var(--clr-section-1);
  padding: 3em 0;
}

.advantages__title {
  margin-top: 0;
}
/*Advantages End*/

/* Main */
.main {
  margin-top: 3em;
  margin-bottom: 3em;
}

.section-title {
  font-size: 1.6rem;
  font-weight: 900;
  margin-top: 0;
}

.primary-content:first-child p {
  margin-bottom: 0;
}

.primary-content p:last-child {
  margin-top: 2em;
}

.sidebar {
  display: flex;
  flex-direction: column;
  text-align: center;
  color: #ffffff;
  margin-top: 1em;
}

.sidebar-col {
  background-color: var(--clr-section);
  margin-top: 2em;
  padding: 0 1em;
  padding-top: 0.1em;
  padding-bottom: 1em;
}

.sidebar-title {
  font-size: 1.2rem;
  color: #ffffff;
}

.sidebar-col p {
  font-size: 0.9rem;
}
/* Main  End*/

/* Footer */
.footer {
  background-color: var(--clr-section);
  padding-top: 3em;
  text-align: center;
}

.just-scratch {
  color: white;
  font-size: 2rem;
}

.footer__about p,
.footer__navbar a {
  font-size: 1rem;
  color: #ffffff;
}

.footer__nav__link:hover,
.footer__nav__link:focus {
  opacity: 0.65;
}

.footer-title {
  font-size: 1.5rem;
  margin-bottom: 0;
}

.footer__navbar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
}

.attribution {
  font-size: 0.7rem;
  padding: 3em 0;
  color: #ffffff;
}

.attribution a {
  color: lightblue;
}
.attribution a:hover {
  color: lightcoral;
}
/* Footer End*/

/* Breakpoints 1*/
@media (min-width: 700px) {
  .row {
    display: flex;
  }

  /* Navbar */
  .nav-toggle {
    display: none;
  }

  .nav {
    visibility: visible;
    display: flex;
    height: auto;
    justify-content: flex-end;
    position: relative;
  }

  .nav__list {
    display: flex;
    flex-direction: row;
    margin: 0;
  }

  .nav__list--secondary {
    margin-left: 1.5em;
  }

  .nav__item {
    margin: 0;
  }
  /* Navbar End*/

  /* Advantages */
  .advantages__row {
    gap: 2em;
  }
  /* Advantages End*/

  /* Main */
  .hero__img {
    margin-top: 3em;
    margin-bottom: 3em;
  }

  .primary-content p:last-child {
    margin-bottom: 0;
    margin-top: 0;
  }

  .sidebar {
    gap: 1em;
    flex-direction: row;
  }
  /* Main End*/

  /* Footer */
  .footer .row {
    display: flex;
    flex-direction: column;
  }

  .just-scratch {
    font-size: 2rem;
  }

  /* Footer End*/
}

/* Breakpoint 2 */
@media (min-width: 1000px) {
  /* Hero */
  .hero {
    padding: 7em 0;
  }

  .hero__text {
    display: flex;
    justify-content: space-between;
  }

  .hero__text-title {
    font-size: 5.625rem;
    width: 42%;
    margin: 0;
    line-height: 1.3em;
  }

  .hero__text-learn {
    width: 50%;
    line-height: 2.5em;
    align-self: flex-end;
  }

  .hero__text-learn p {
    font-size: 1.5rem;
    margin-bottom: 1em;
  }

  .hero__text-learn .btn {
    padding: 0.5em 1.5em;
    font-size: 1.5rem;
  }
  /* Hero End*/

  /* Section 1 */
  .advantages {
    text-align: center;
    padding: 5em 0;
  }

  .advantages__row {
    gap: 6em;
  }

  .advantages__title {
    font-size: 1.875rem;
  }

  .advantages__content {
    font-size: 1.125rem;
  }
  /* Section 1 End*/

  /* Main */
  .main {
    display: flex;
    justify-content: space-between;
    gap: 5em;
    padding: 5em 0;
  }

  .primary-content {
    width: 62%;
  }

  .section-title {
    font-size: 2.25rem;
  }

  .primary-content p {
    font-size: 1.313rem;
  }

  .sidebar {
    width: 32%;
    margin-top: 0;
    flex-direction: column;
  }

  .sidebar-col {
    margin-top: 0;
    margin-bottom: 2em;
    padding: 1em 1em;
  }

  .sidebar-title {
    font-size: 1.875rem;
    margin-top: 0.5em;
  }

  .sidebar-col p {
    font-size: 1.125rem;
  }
  /* Main End */

  /* Footer */

  .just-scratch {
    font-size: 4rem;
    margin-top: 0;
    margin-bottom: 0.5em;
  }

  .footer__about {
    width: 35%;
  }

  .footer__navbar {
    text-align: start;
    display: flex;
    justify-content: space-between;
  }

  .footer__nav__link,
  .footer__about p {
    line-height: 2em;
  }
  /* Footer End*/
}