@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400&display=swap');

@font-face {
  font-family: 'COCOGOOSE';
  font-style: normal;
  font-weight: 400;
  src: local('COCOGOOSE'), url('https://fonts.cdnfonts.com/s/26936/cocogoose_trial.woff') format('woff');
}

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

:root {
  --color-black: #272a31;
  --color-another-black: #575757;
  --color-gray: #d3d3d3;
  --color-another-gray: #f4f4f5;
  --color-red: #ec5242;
  --color-white: #ececed;
  --lato: 'Lato', sans-serif;
  --cocogoose: 'COCOGOOSE', sans-serif;
}

html {
  font-size: 10px;
}

body {
  min-width: 32rem;
  min-height: 100vh;
  color: var(--color-another-black);
}

header {
  height: 5.5rem;
  margin: 1.6rem 0;
  text-align: center;
}

#burger-menu {
  position: absolute;
  width: 4%;
  top: 4%;
  left: 4%;
  max-width: 2rem;
}

div.wrapper {
  width: 100%;
}

div.hero-wrapper {
  background: #f7f7f7 url(../img/backgrounds/about_bg_01.png) top left no-repeat;
}

div.logo-wrapper {
  padding-bottom: 3.5rem;
  border-bottom: 0.1rem solid var(--color-gray);
  color: var(--color-black);
  font: 300 1.4rem var(--lato);
}

div.partners-wrapper {
  padding: 3rem 0;
  text-align: center;
  background-color: var(--color-black);
}

.mobile-menu {
  transition: left;
  z-index: 100;
}

.mobile-menu,
.mobile-menu .background {
  width: 80vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  transition: left 1s;
}

.mobile-menu .background {
  background-color: var(--color-black);
  opacity: 0.96;
}

.mobile-menu ul a {
  color: white;
  text-decoration: none;
  font-size: 1.4rem;
}

.mobile-menu div:not(.background) > a {
  z-index: 200;
  position: absolute;
  top: 1rem;
  right: 3rem;
}

.mobile-menu.hidden,
.mobile-menu .background.hidden {
  left: -80vw;
  transition: left 1s;
}

#hero {
  padding-top: 5.1rem;
  text-align: center;
  color: var(--color-red);
}

#logo,
#past-courses {
  padding-top: 7.9rem;
  padding-bottom: 5rem;
  text-align: center;
}

footer p {
  font-size: 1.6rem;
}

#logo p {
  font-size: 1.6rem;
  margin-bottom: 3rem;
}

#hero p:first-child {
  font: 400 2.4rem/3.2rem var(--lato);
}

#hero h1 {
  font: 400 3.6rem/4.8rem var(--cocogoose);
}

#hero p.description {
  margin: 0 auto;
  width: 90vw;
  max-width: 90rem;
  padding: 1rem;
  font: 300 1.3rem/220% var(--lato);
  text-align: justify;
  border: 0.2rem solid #e7e7e7;
  background-color: white;
  color: var(--color-black);
}

#hero p.location {
  margin-top: 2rem;
  padding: 4rem 0;
  text-align: center;
  font: normal 1.4rem var(--lato);
  color: var(--color-black);
}

.mobile-menu ul li a:hover {
  color: var(--color-red);
}

#hero p.location a {
  text-decoration: none;
  color: var(--color-black);
}

#lessons h2,
#partners h2 {
  font-size: 2.4rem;
  text-align: center;
}

#partners h2 {
  color: var(--color-white);
}

.partners-container img {
  width: 16rem;
}

#logo img {
  width: 30rem;
  padding: 3rem 5rem;
  border: 0.1rem solid var(--color-gray);
}

#past-courses #python-conference,
#past-courses #php-conference {
  width: 45.5rem;
  height: 25.2rem;
  margin: 0 auto;
  font: 2.4rem var(--lato);
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-repeat: no-repeat;
  background-position: top left;
}

#past-courses h3 {
  font-size: 1.8rem;
  margin-top: 1.6rem;
}

#past-courses #python-conference {
  background-image:
    linear-gradient(to bottom, rgba(208, 99, 79, 0.75), rgba(208, 99, 79, 0.75)),
    url(../img/backgrounds/python_conference.png);
  margin-bottom: 5rem;
}

#past-courses #php-conference {
  background-image:
    linear-gradient(to bottom, rgba(208, 99, 79, 0.75), rgba(208, 99, 79, 0.75)),
    url(../img/backgrounds/php_conference.png);
}

.partners-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

#partners div {
  margin-top: 1.5rem;
  margin-bottom: 3rem;
}

footer {
  padding: 6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bar {
  width: 5.3rem;
  height: 1.6rem;
  border-bottom: 0.1rem solid var(--color-red);
  margin: 0 auto 5.4rem;
}

.desktop-visible {
  display: none;
}

.notThere {
  display: none;
}

#scrollToTop {
  position: fixed;
  bottom: 3rem;
  right: 1rem;
  text-align: right;
}

#scrollToTop img {
  width: 30%;
}

.mobile-menu ul {
  position: relative;
  width: 96%;
  top: 4rem;
  margin: 0 auto;
  list-style-type: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu ul li {
  border-top: 0.1rem solid rgba(255, 255, 255, 0.2);
  padding: 1rem 0 0 2rem;
  display: flex;
}

.mobile-menu ul li:last-child {
  border-bottom: 0.1rem solid rgba(255, 255, 255, 0.2);
  padding-bottom: 1rem;
}

.mobile-menu ul li a.nav-button {
  color: var(--color-red);
  border: 0.5rem solid var(--color-red);
  padding: 0.5rem;
}

@media screen and (min-width: 768px) {
  .mobile-visible {
    display: none;
  }

  .desktop-visible {
    all: unset;
  }

  .header-bar {
    padding: 2rem 0;
    background-color: var(--color-black);
    display: flex;
    justify-content: flex-end;
  }

  .header-bar ul {
    display: flex;
    list-style-type: none;
    color: var(--color-white);
    gap: 2rem;
    margin-right: 10%;
  }

  .header-bar ul li {
    padding: 0 1rem;
  }

  .header-bar ul a {
    text-decoration: none;
    color: white;
    font: 2rem var(--lato);
  }

  header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 80%;
    margin: 0 auto;
    padding: 5rem 0;
  }

  header ul.desktop-visible {
    display: flex;
    list-style-type: none;
    gap: 2.5vw;
  }

  header ul.desktop-visible li a {
    text-decoration: none;
    font: 1.6rem var(--lato);
    color: var(--color-another-black);
  }

  header ul.desktop-visible li a.nav-button {
    color: var(--color-red);
    border: 0.5rem solid var(--color-red);
    padding: 0.5rem;
  }

  header ul.desktop-visible li a:hover {
    color: var(--color-red);
  }

  div.hero-wrapper {
    background: url(../img/backgrounds/about_bg_01.png) top center no-repeat;
  }

  .conference-container {
    display: flex;
    max-width: 120rem;
    margin: 0 auto;
  }

  .partners-container {
    display: flex;
    flex-direction: row;
    justify-content: center;
  }

  footer {
    margin: 0 auto;
    background-color: var(--color-black);
    color: white;
  }
}