:root {
  --primary-color: #ba68c8;
  --primary-hover-color: #8e24aa;
  --light-color: #fff;
  --dark-color: #121212;
  --dark-secondary-color: #343434;
  --font-family: "Raleway", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-weight: 400;
  background-color: var(--dark-color);
  color: var(--light-color);
}

/**
 * Reset
 */

h1,
h2,
h3,
h5,
h6 {
  margin: 0;
}

.container {
  width: calc(100% - 2rem);
  margin: 0 auto;
}

.with-topbar {
  padding-top: 8rem;
}

.with-big-shadow {
  box-shadow: 0 3rem 3rem rgba(0, 0, 0, 1);
}

/**
 * Header
 */
#logo {
  height: 4rem;
}

#logo img {
  height: 100%;
}

nav {
  width: 100%;
  position: fixed;
  z-index: 2;
  padding: 0.5rem 0;
  background-color: transparent;
  transition: 250ms;
}

nav ul {
  margin: 0;
}

nav li {
  list-style-type: none;
  padding: 0 1rem;
}
nav li:first-child {
  padding: 0 1rem 0 0;
}

nav li:last-child {
  padding: 0 0 0 1rem;
}

nav a {
  text-decoration: none;
  color: var(--light-color);
  transition: 250ms;
}

nav a:hover {
  color: var(--primary-color);
}

/**
 * Home / Hero
 */
#hero {
  position: relative;
  width: 100%;
  padding-top: calc(56.25% + 8rem);
  overflow: hidden;
}

#hero > video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#hero > div {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}

#hero h1 {
  color: #fff;
  font-weight: 900;
  font-size: 2rem;
  margin-bottom: 2rem;
}

/**
 * Cards
 */

.card {
  background-color: var(--dark-secondary-color);
  padding: 1rem;
  border-radius: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.25);
  transition: 250ms;
}

.card:hover {
  transform: scale(1.05) rotate(-2.8125deg);
}

.img-primary-overlay {
  position: relative;
  border-radius: 0.75rem;
  overflow: hidden;
  transition: 250ms;
  margin-bottom: 1rem;
}

.img-primary-overlay img {
  display: block;
}

/**
 * Forms and buttons
 */

input,
textarea {
  width: 100%;
  color: var(--light-color);
  font-family: var(--font-family);
  font-weight: 400;
  border-radius: 1rem;
  font-size: 1rem;
  padding: 1rem;
  background-color: var(--dark-secondary-color);
  border: 2px solid rgba(255, 255, 255, 0.25);
  transition: 250ms;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Alerts */

.alert {
  padding: 1rem;
  background-color: var(--dark-secondary-color);
  border: 1px solid var(--dark-secondary-color);
  color: var(--light-color);
  border-radius: 1rem;
  margin-bottom: 1rem;
}

.alert > ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.alert.alert-success {
  background-color: var(--primary-color);
  color: var(--light-color);
  border: 1px solid var(--primary-color);
  font-weight: 700;
}

.alert.alert-error {
  background-color: #e53935;
  border: 1px solid #e53935;
  color: var(--light-color);
  font-weight: 700;
}

.alert > ul > li > i {
  padding-right: 1rem;
  font-size: 1.5rem;
  color: var(--light-color);
}

.btn {
  display: inline-block;
  border: none;
  background: none;
  font-size: 1rem;
  font-family: var(--font-family);
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  transition: 250ms;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--light-color);
}
.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background-color: var(--primary-hover-color);
}

.btn-secondary {
  border: 2px solid var(--light-color);
  color: var(--light-color);
}

.btn-secondary:hover,
.btn-secondary:focus,
.btn-secondary:active {
  color: var(--primary-color);
  background-color: var(--light-color);
}

/**
 * Helpers
 */
.d-flex {
  display: flex;
}

.justify-content-center {
  justify-content: center;
}

.justify-content-between {
  justify-content: space-between;
}

.align-items-center {
  align-items: center;
}

.flex-column {
  flex-direction: column;
}

.gap-1 {
  gap: 0.25rem;
}
.gap-2 {
  gap: 0.5rem;
}
.gap-3 {
  gap: 1rem;
}
.gap-4 {
  gap: 1.5rem;
}
.gap-5 {
  gap: 3rem;
}

.bg-dark {
  background-color: var(--dark-color);
}
.bg-primary {
  background-color: var(--primary-color);
}

.text-primary {
  color: var(--primary-color);
}

.w-100 {
  width: 100%;
}

.h-100 {
  height: 100%;
}

.p-5 {
  padding: 3rem;
}
.pt-5 {
  padding-top: 3rem;
}

.pl-3 {
  padding-left: 1rem;
}

.mb-3 {
  margin-bottom: 1rem;
}
.mb-5 {
  margin-bottom: 3rem;
}

.radius-3 {
  border-radius: 1rem;
}

.text-center {
  text-align: center;
}

/**
 * Specific use
 */
.flex-column-on-mobile {
  flex-direction: column;
}

.flex-column-on-mobile > div {
  width: 100%;
}

/**
 * Media queries
 */
@media (min-width: 576px) {
  .container {
    width: 540px;
  }
  #hero {
    padding-top: 56.25%;
  }
  #hero h1 {
    font-size: 3rem;
  }
}

@media (min-width: 768px) {
  .container {
    width: 720px;
  }
  #hero h1 {
    font-size: 4rem;
  }
  .flex-column-on-mobile > div {
    width: 50%;
  }
  .flex-column-on-mobile > #lastname-div {
    margin-bottom: 1rem;
  }
  .flex-column-on-mobile {
    flex-direction: row;
  }
}

@media (min-width: 992px) {
  .container {
    width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    width: 1140px;
  }
}