@import url("https://fonts.googleapis.com/css2?family=Poppins&display=swap");

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: "Poppins", sans-serif;
}

body {
  --dark-grey: #24292d;
  --mid-grey: #2b3137;
  --light-grey: #bcc3ba;
  --primary: #2fbb4f;
  --error: red;
  background-color: var(--dark-grey);
  overflow-y: hidden;
}

/******* INPUT CONTAINER *******/

.username-container {
  background-image: url("github.svg");
  background-repeat: no-repeat;
  background-position: bottom right;
  background-position: bottom -100px right -100px;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #ffffff;
  position: absolute;
  top: 0;
  left: 0;
  transition: all 0.5s ease-in-out;
  -webkit-transition: all 0.5s ease-in-out;
  -moz-transition: all 0.5s ease-in-out;
  -ms-transition: all 0.5s ease-in-out;
  -o-transition: all 0.5s ease-in-out;
}

.username-title {
  font-size: 56px;
  font-weight: 500;
  color: var(--primary);
  transition: all 0.5s;
}

.username-container form {
  display: flex;
  max-width: 500px;
  min-width: 200px;
  overflow: hidden;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  -ms-border-radius: 5px;
  -o-border-radius: 5px;
  margin-top: 5px;
}

form input {
  font-family: "Poppins", sans-serif;
  margin: 0;
  outline: none;
  border: none;
  width: 100%;
  padding: 10px 20px;
}
form button {
  position: relative;
  display: flex;
  padding: 0 30px;
  width: 150px;
  color: #ffffff;
  margin: 0;
  outline: none;
  border: none;
  transition: all 0.5s;
  background-color: var(--primary);
  font-family: "Poppins", sans-serif;
  cursor: pointer;
}

button span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.input-search {
  position: absolute;
  top: 0;
  transition: all 0.5s;
  left: 0;
}
.input-search::before {
  content: "";
  display: flex;
  background: url("search.svg") no-repeat;
  width: 15px;
  height: 15px;
  padding-left: 10px;
}

.input-error {
  transition: all 0.5s;
  display: flex;
  width: 120px;
  position: absolute;
  top: 0;
  left: 150px;
}
.input-error::before {
  content: "";
  display: flex;
  background: url("error.svg") no-repeat;
  width: 15px;
  height: 15px;
  padding-left: 10px;
}
.error button {
  background-color: var(--error);
  width: 240px;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -o-transition: all 0.5s;
}

.error form {
  animation: shake 0.5s;
  animation-iteration-count: 1;
}

.timeline .username-container {
  top: -100%;
  opacity: 0;
}

@keyframes shake {
  0% {
    transform: translateX(1px);
    -webkit-transform: translateX(1px);
    -moz-transform: translateX(1px);
    -ms-transform: translateX(1px);
    -o-transform: translateX(1px);
  }
  10% {
    transform: translateX(-2px);
    -webkit-transform: translateX(-2px);
    -moz-transform: translateX(-2px);
    -ms-transform: translateX(-2px);
    -o-transform: translateX(-2px);
  }
  20% {
    transform: translateX(0px);
    -webkit-transform: translateX(0px);
    -moz-transform: translateX(0px);
    -ms-transform: translateX(0px);
    -o-transform: translateX(0px);
  }
  30% {
    transform: translateX(2px);
    -webkit-transform: translateX(2px);
    -moz-transform: translateX(2px);
    -ms-transform: translateX(2px);
    -o-transform: translateX(2px);
  }
  40% {
    transform: translateX(1px);
    -webkit-transform: translateX(1px);
    -moz-transform: translateX(1px);
    -ms-transform: translateX(1px);
    -o-transform: translateX(1px);
  }
  50% {
    transform: translateX(2px);
    -webkit-transform: translateX(2px);
    -moz-transform: translateX(2px);
    -ms-transform: translateX(2px);
    -o-transform: translateX(2px);
  }
  60% {
    transform: translateX(1px);
    -webkit-transform: translateX(1px);
    -moz-transform: translateX(1px);
    -ms-transform: translateX(1px);
    -o-transform: translateX(1px);
  }
  70% {
    transform: translateX(1px);
    -webkit-transform: translateX(1px);
    -moz-transform: translateX(1px);
    -ms-transform: translateX(1px);
    -o-transform: translateX(1px);
  }
  80% {
    transform: translateX(-1px);
    -webkit-transform: translateX(-1px);
    -moz-transform: translateX(-1px);
    -ms-transform: translateX(-1px);
    -o-transform: translateX(-1px);
  }
  90% {
    transform: translateX(2px);
    -webkit-transform: translateX(2px);
    -moz-transform: translateX(2px);
    -ms-transform: translateX(2px);
    -o-transform: translateX(2px);
  }
  100% {
    transform: translateX(-2px);
    -webkit-transform: translateX(-2px);
    -moz-transform: translateX(-2px);
    -ms-transform: translateX(-2px);
    -o-transform: translateX(-2px);
  }
}

.error .input-error {
  left: 20px;
}
.error .input-search {
  left: -150px;
}

/************* TIMELINE CONTAINER **************/
body.timeline {
  overflow: initial;
}
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background-color: var(--mid-grey);
}
::-webkit-scrollbar-thumb {
  background-color: var(--light-grey);
  border-radius: 4px;
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  -ms-border-radius: 4px;
  -o-border-radius: 4px;
}
.timeline-container {
  position: absolute;
  top: 100%;
  left: 0;
  transition: all 0.5s ease-in-out;
  color: #ffffff;
  -webkit-transition: all 0.5s ease-in-out;
  -moz-transition: all 0.5s ease-in-out;
  -ms-transition: all 0.5s ease-in-out;
  -o-transition: all 0.5s ease-in-out;
}

.timeline .timeline-container {
  top: 0;
  position: relative;
}

.timeline .timeline-line {
  position: absolute;
  display: block;
  top: 0;
  left: 50%;
  width: 5px;
  height: 0px;
  background-color: var(--light-grey);
  z-index: 1;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  -ms-border-radius: 5px;
  -o-border-radius: 5px;
}

.timeline .timeline-year {
  position: absolute;
  font-weight: 600;
  font-size: 64px;
}

.timeline .timeline-month {
  position: absolute;
  font-weight: 600;
  font-size: 24px;
}

.timeline-card {
  color: var(--dark-grey);
  position: absolute;
  border-radius: 5px;
  background-color: #ffff;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  -ms-border-radius: 5px;
  -o-border-radius: 5px;
  padding: 50px 80px;
  max-width: 300px;
  text-decoration: none;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -ms-transition: all 0.3s;
  -o-transition: all 0.3s;
  z-index: 2;
}

.timeline-card:hover {
  transform: scale(1.1);
  -webkit-transform: scale(1.1);
  -moz-transform: scale(1.1);
  -ms-transform: scale(1.1);
  -o-transform: scale(1.1);
}


.timeline-end {
  font-weight: 600;
  font-size: 24px;
}

.card-line {
  display: block;
  position: absolute;
  width: 100px;
  height: 5px;
  top: 50%;
  z-index: 1;
  background-color: var(--light-grey);
}
.card-name {
  font-weight: 600;
  font-size: 24px;
}

.card-date {
  font-size: 14px;
  opacity: 0.75;
}

.card-desc {
}

.timeline-end {
  position: absolute;
  width: 100%;
  text-align: center;
  padding-bottom: 30px;
}



.timeline-year,
.timeline-month,
.timeline-instructions,
.timeline-end, 
.timeline-back {
  background-color: var(--dark-grey);
  z-index: 2;
  color: var(--light-grey);
}

.timeline-back{
  position: absolute;
  width: 100%;
  text-align: center;
}
.timeline-back a{
  color: var(--primary) !important;
  cursor: pointer;
  padding-bottom: 50px;
}

@media screen and (max-width: 1024px) {
  .timeline .timeline-line {
    left: 20%;
  }
  .card-line {
    width: 50px;
  }
}

@media screen and (max-width: 748px) {
  .username-form {
    padding: 0 30px;
    width: calc (100% - 60px);
  }
  .input-search{
    font-size: 0px;
  }
  .input-error {
    font-size: 0px;
    width: 15px;
  }
  form button, .error button {
    width: 15px;
  }

}