@font-face {
  font-family: Circular;
  src: url("../src/fonts/circular-light.woff2") format("woff2"),
    url("../src/fonts/circular-light.woff") format("woff");
  font-weight: 300;
  font-style: normal;
}

@font-face {
  font-family: Circular;
  src: url("../src/fonts/circular-book.woff2") format("woff2"),
    url("../src/fonts/circular-book.woff") format("woff");
  font-weight: 400;
  font-style: normal;
}

@font-face {
  font-family: Circular;
  src: url("../src/fonts/circular-medium.woff2") format("woff2"),
    url("../src/fonts/circular-medium.woff") format("woff");
  font-weight: 500;
  font-style: normal;
}

@font-face {
  font-family: Circular;
  src: url("../src/fonts/circular-bold.woff2") format("woff2"),
    url("../src/fonts/circular-bold.woff") format("woff");
  font-weight: 700;
  font-style: normal;
}

@font-face {
  font-family: Circular;
  src: url("../src/fonts/circular-black.woff2") format("woff2"),
    url("../src/fonts/circular-black.woff") format("woff");
  font-weight: 900;
  font-style: normal;
}

@keyframes swipeDown {
  0% {
    transform: translateY(0px);
    opacity: O;
  }
  100% {
    transform: translateY(10px);
    opacity: 1;
  }
}

@keyframes moveInLeft {
  0% {
    opacity: 0;
    transform: translateX(-50px);
  }
  100% {
    opacity: 1;
    transform: translateX(0px);
  }
}

body {
  background-color: #0f1013;
  color: white;
  font-family: "Circular";
  font-weight: 300;
}

header {
  display: flex;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  justify-content: space-between;
  padding: 8px 16px;
  background-color: #0f1013;
  z-index: 4;
}

header img {
  width: 40px;
  height: 40px;
  margin-top: 5px;
  opacity: 1;
  transition: opacity ease 0.3s;
  display: inline-block;
}

header ul {
  display: none;
}

.section-hero {
  height: 90vh;
  display: flex;
  flex-direction: column;
  margin: 0px 16px;
}

.main-title {
  flex-grow: 1;
  align-self: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: no-repeat center url("../src/img/img-earphones.png");
}

.main-title h1 {
  font-size: 44px;
  letter-spacing: 0.38em;
  margin-right: -0.38em;
  text-transform: uppercase;
}

.main-title p {
  color: #43d940;
  align-self: flex-end;
}

.main-title p em {
  font-weight: 400;
}

.product-description {
  width: 65%;
  font-size: 24px;
  margin-bottom: 50px;
  margin-top: -200px;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  line-height: 30px;
}

.swipe-down {
  width: 30px;
  align-self: center;
  padding-bottom: 10px;
}

.product {
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 0px 24px;
  height: 100vh;
  background: url("../src/img/satisfy-product-radial.png") no-repeat right;
}

.product div {
  width: 50%;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

h2 {
  font-size: 24px;
  font-weight: 500;
}

.product h2 {
  margin: 27px 0px;
}

.product p {
  font-size: 18px;
}

.product p em {
  font-weight: 500;
}

button {
  align-self: center;
  background-color: #43d940;
  height: 45px;
  width: 70%;
  border-radius: 500px;
  color: white;
  font-family: "Circular";
  font-size: 17px;
  text-transform: uppercase;
  font-weight: 600;
  border-style: none;
  letter-spacing: 2px;
  margin: 30px 0px;
}

.product button {
  margin: 5px;
  height: 50px;
  font-size: 15px;
  width: 110%;
  align-items: center;
}

.feature-block {
  background-color: white;
  color: black;
  padding: 0 16px 35px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
}

.feature-titles {
  padding-top: 20px;
}

.feature-block p {
  font-weight: 300;
  font-size: 24px;
  line-height: 26px;
  padding-top: 15px;
}

.feature {
  display: flex;
  flex-direction: row;
  align-items: center;
  padding-top: 20px;
}

.feature-block img {
  width: 100px;
  margin-right: 20px;
  padding: 5px;
}

.second-feature img {
  width: 50px;
}

h3 {
  font-weight: 500;
  font-size: 21px;
  line-height: 26px;
  padding-top: 20px;
}

.feature p {
  font-size: 16px;
  font-weight: 400;
}

.pre-order {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  background: url("../src/img/satisfy-product-2.png") no-repeat center;
  background-size: cover;
}

.pre-order h1 {
  font-size: 32px;
  font-weight: 600;
  padding: 71px 20% 10% 20%;
  text-align: center;
}

.pre-order p {
  font-size: 15px;
  margin-left: 10%;
  width: 220px;
  margin-top: 20px;
  justify-self: flex-start;
}

.premium-btn {
  background-color: #3f9ed7;
  border-radius: 3px;
  padding: 10px;
  text-align: center;
}

.pre-order h2 {
  font-weight: 300;
  margin-right: 10%;
  margin-left: 10%;
  margin-top: 20px;
}

.pre-order a {
  margin-bottom: 70px;
  align-self: flex-start;
  margin: 10%;
}

.pre-order button {
  width: 120%;
}

/* utility */
.swipe-down {
  animation: swipeDown 1s infinite alternate;
  opacity: 1;
  transition: opacity 0.3s ease-in-out forwards;
}

.hidden {
  opacity: 0;
}
.display-none {
  display: none;
}
.moveInLeft {
  animation: moveInLeft 0.5s ease-in-out;
}

.toAnimate {
  transform: translateX(-50px);
  opacity: 0;
}

.menu-grow {
  height: 100vh;
  position: fixed;
  transition: height 500ms ease;
}
.nav-item-is-active::after {
  width: 50%;
}

/* Button */
.btn,
.btn:link,
.btn:visited {
  display: inline-block;
  border-bottom: 1px solid #43d940;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  background-color: #43d940;
  outline: none;
  position: relative;
}

footer {
  height: 115px;
  display: flex;
  font-size: 10px;
  justify-content: space-between;
  align-items: flex-end;
  padding: 0 15px 15px 15px;
  color: #919496;
}

footer div {
  text-align: right;
}

footer ul {
  display: flex;
}

footer li {
  padding-right: 10px;
  padding-bottom: 5px;
}
footer ul li:hover {
  text-decoration: none;
  color: #1ed760;
}
footer p:hover {
  text-decoration: none;
  color: #1ed760;
}
/* Burger / Croix */
.icon {
  padding-top: 15px;
  width: 40px;
  height: 40px;
  cursor: pointer;
}

.hamburger {
  position: relative;
}

.hamburger:after {
  top: 14px;
}
.hamburger:after,
.hamburger:before {
  position: absolute;
  content: "";
  height: 4px;
  width: 32px;
  background: #ffffff;
  -webkit-transition: transform 500ms cubic-bezier(0, 1, 1, 0.875); /* older webkit */
  -webkit-transition: transform 500ms cubic-bezier(0, 1.65, 1, 0.875);
  -moz-transition: transform 500ms cubic-bezier(0, 1.65, 1, 0.875);
  -o-transition: transform 500ms cubic-bezier(0, 1.65, 1, 0.875);
  transition: transform 500ms cubic-bezier(0, 1.65, 1, 0.875); /* custom */
}

.hamburger.menu-opened:before {
  transform: rotate(45deg);
  top: 8px;
  left: 0;
}

.hamburger.menu-opened:after {
  transform: rotate(135deg);
  top: 8px;
  left: 0;
}

menu {
  position: absolute;
  height: 0px;
  width: 100%;
  background-color: #0f1013;
  z-index: 3;
  overflow: hidden;
  transition: height 500ms ease;
}

menu ul {
  display: flex;
  flex-direction: column;
  text-transform: uppercase;
  font-weight: 300px;
  letter-spacing: 0.2em;
  margin-top: 56px;
}

menu ul li {
  margin: 40px 40px;
  font-size: 20px;
  font-weight: 500;
}

@media (min-width: 600px) {
  .section-hero {
    margin: 0px 32px;
    height: 100vh;
  }

  .main-title h1 {
    font-size: 60px;
  }

  .product-description {
    margin-top: 0px;
    margin-bottom: 30px;
    width: 100%;
  }
  .btn:hover {
    transform: translateY(-2px);
  }
  .btn:active {
    transform: translateY(0px);
    outline: none;
  }

  .btn::after {
    content: "";
    display: inline-block;
    height: 100%;
    width: 100%;
    border-radius: 100px;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    transition: all 0.4s;
    background-color: #43d940;
  }
  .btn:hover::after {
    transform: scaleX(1.4) scaleY(1.6);
    opacity: 0;
  }

  .product {
    background: url(../src/img/satisfy-product-radial-big.png) no-repeat right;
    margin: 0;
  }

  .product div:nth-child(1) {
    width: 100%;
    padding-top: 10%;
  }

  .product div:nth-child(2) {
    display: flex;
    flex-direction: row;
    width: 70%;
    margin: 0px 15%;
    justify-content: space-around;
  }

  .product h2 {
    margin-left: 10%;
    margin-bottom: 30px;
  }

  .product p {
    margin-left: 20%;
  }

  .product em {
    color: #43d940;
  }

  .product button {
    margin-bottom: -40px;
  }

  .feature-block {
    height: 120vh;
  }

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

  .feature img {
    margin-right: 5px;
  }

  .feature article {
    display: flex;
    flex-direction: column;
    margin: 2%;
  }

  .second-feature {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
  }

  .second-feature article {
    width: 90%;
  }

  .pre-order {
    height: 90vh;
    justify-content: space-around;
  }

  .pre-order h2 {
    display: none;
  }

  .pre-order p {
    margin-right: 5%;
    align-self: flex-end;
  }
  .pre-order p:nth-child(4) {
    display: none;
  }

  .pre-order p:nth-child(5) {
    display: none;
  }

  .pre-order button {
    width: 300px;
    align-self: flex-end;
    margin-right: 5%;
  }

  .pre-order a {
    align-self: flex-end;
    margin-right: 5%;
  }

  footer {
    font-size: 13px;
  }

  footer div {
    width: 150px;
  }

  footer p {
    padding-top: 5px;
  }
}

@media (min-width: 900px) {
  .icon {
    display: none;
  }

  header nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
  }

  header ul {
    display: flex;
    font-size: 14px;
    text-transform: uppercase;
    font-weight: 300px;
    letter-spacing: 0.3em;
  }

  header li {
    margin-left: 50px;
    position: relative;
  }

  header li::after {
    margin-top: 16px;
    content: "";
    border-radius: 100px;
    width: 0%;
    height: 4px;
    background-color: #43d940;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease;
  }

  .first-feature {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    padding-right: 20px;
  }

  .feature-block {
    height: 80vh;
  }

  footer {
    font-size: 13px;
  }
}