@font-face {
  font-family: 'Farenheight';
  src: url('./assets/fonts/farenheight.ttf') format('truetype'); /* Chrome 4+, Firefox 3.5, Opera 10+, Safari 3—5 */
}

body {
  font-family: 'Poppins', sans-serif;
}

:root {
  --first-color: #00f3f1;
  --second-color: #edf5ff;
  --third-color: #ff3232;
  --background: #050b19;
  --accent: #7f3dd5;
  --first-place: #ffc130;
  --second-place: #fda98f;
  --third-place: #5dd7eb;
  --first-place-podium: #ffc130a1;
  --second-place-podium: #fda98fa1;
  --third-place-podium: #5dd7eba1;
}

a:hover,
a:visited,
a:link,
a:active {
  text-decoration: none;
}

html,
body {
  margin: 0px;
  height: 100%;
  background-color: var(--background);
}

body {
  padding: 1%;
  display: flex;
  flex-direction: row;
  overflow-y: hidden;
}

.ieee-logo > img {
  max-width: 105px;
  max-height: 105px;
  transform: translate(-35%);
}

.left {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  width: 25%;
  height: 100vh;
  z-index: 15;
}
.vertical-rule {
  min-width: 5px;
  background-color: black;
  height: 220%;
  align-self: center;
  justify-self: center;
  background-color: var(--second-color);
}
.option {
  font-size: 1.5rem;
  display: flex;
  flex-direction: row;
  justify-content: start;
  gap: 3rem;
  color: var(--second-color);
  cursor: pointer;
}
.index {
  flex-shrink: 0;
  width: 33px;
  text-align: center;
}

.option i {
  width: 25px;
  height: 25px;
}
.navbar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  width: 65%;
  height: 100%;
  padding-top: 20px;
  padding-left: 10%;
}

.segment,
.index {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 300ms ease-in-out, color 300ms ease-in;
}

.option:hover .index {
  background: linear-gradient(
    90deg,
    var(--first-color),
    var(--second-color),
    #fff
  );
  background-size: 300%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.option:hover .segment,
.index {
  transform: scale(1.05);
}

.option:hover .segment {
  background: linear-gradient(
    90deg,
    var(--second-color),
    #fd6161,
    #ff4444,
    var(--third-color)
  );
  background-size: 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
/* Right half */
.right {
  scroll-behavior: smooth;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: 7rem;
  width: 75%;
  height: 700px;
  z-index: 15;
  overflow-y: auto;
}
/* Home section */
.home {
  margin-top: 4rem;
  color: var(--second-color);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: 1fr 4fr;
  width: 85%;
  height: 70vh;
  justify-self: center;
  align-self: center;
}
.registration {
  justify-self: center;
  display: flex;
  flex-direction: column;
}
.registration > h2 {
  font-size: 2.5rem;
}
.registration > h4 {
  font-size: 1rem;
}
.register-button {
  position: relative;
  text-align: center;
  background-color: transparent;
  padding: 5px;
  border: #edf5ff 2px solid;
  border-radius: 0.5rem;
  color: var(--second-color);
  font-size: 1.6rem;
  cursor: pointer;
  transition: transform 300ms ease-in-out;
}
.register-button:hover {
  background: linear-gradient(
    70deg,
    var(--first-color),
    var(--first-color),
    var(--second-color),
    var(--third-color),
    var(--third-color)
  );
  background-size: 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transform: scale(1.02);
}
.home > h1 {
  text-align: center;
  font-family: Farenheight;
  grid-column: 1/3;
  font-size: 5rem;
}
.logo > img {
  align-self: center;
  transform: translate(50%);
  height: 230px;
  width: 300px;
}

/* About section */
.about {
  color: var(--second-color);
  width: 85%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 10vh;
}
.about > h1 {
  text-align: center;
  font-family: Farenheight;
  font-size: 3rem;
}
.about > p {
  font-size: 1.2rem;
}

/* Domains */

.domains {
  color: var(--second-color);
  width: 85%;
  gap: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 10vh;
}
.domains > h1 {
  text-align: center;
  font-family: Farenheight;
  font-size: 3rem;
}
.tracks {
  width: 100%;
  display: flex;
  justify-content: space-evenly;
}
.domain {
  padding: 2px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: end;
  padding-bottom: 10px;
  align-items: center;
  height: 200px;
  width: 170px;
  border: 3px var(--second-color) solid;
  border-radius: 12px;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
  transition: transform 300ms ease-in-out;
}
.domain > .name {
  font-size: 1.1rem;
  text-overflow: ellipsis;
  color: var(--second-color);
  font-weight: 600;
}
.domain > .info {
  top: 0px;
  display: none;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(5px);
  width: 100%;
  height: 250px;
  position: absolute;
  text-align: center;
  background-color: #050b196e;
}
.domain:hover {
  transform: scale(1.05);
}
.domain:hover .info {
  display: flex;
}

/* Prizes */
.prizes {
  color: var(--second-color);
  width: 85%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 10vh;
}
.prizes > h1 {
  text-align: center;
  font-family: Farenheight;
  font-size: 3rem;
}
.prize-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(6, 1fr);
  width: 75%;
  height: 75%;
  column-gap: 3px;
  align-items: center;
  justify-content: center;
}
.first-black,
.second-black,
.third-black {
  border-radius: 5px 5px 0px 0px;
  height: 100%;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 3vw;
  transition: box-shadow 200ms ease-in-out;
}
.first-black {
  color: var(--first-place);
  background-color: var(--first-place-podium);
  border-top: 10px var(--first-place) solid;
  grid-column: 2/3;
  grid-row: 3/7;
}
.first-black:hover {
  box-shadow: 0 0 28px -5px var(--first-place);
}
.second-black {
  color: var(--second-place);
  background-color: var(--second-place-podium);
  border-top: 10px var(--second-place) solid;
  grid-column: 3/4;
  grid-row: 5/7;
}
.second-black:hover {
  box-shadow: 0 0 28px -5px var(--second-place);
}
.third-black {
  color: var(--third-place);
  background-color: var(--third-place-podium);
  border-top: 10px var(--third-place) solid;
  grid-column: 1/2;
  grid-row: 6/7;
}
.third-black:hover {
  box-shadow: 0 0 28px -5px var(--third-place);
}
.prize-grid > h4 {
  text-align: center;
  font-size: 1.6rem;
}

/* Timeline */
.timeline {
  color: var(--second-color);
  width: 85%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 10vh;
}
.timeline > h1 {
  text-align: center;
  font-family: Farenheight;
  font-size: 3rem;
}
.timeline-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  width: 80%;
  height: 90%;
  gap: 6rem;
}
.timeline-grid > .line {
  position: absolute;
  width: 74%;
  height: 60%;
  margin-top: auto;
  margin-bottom: auto;
  margin-left: auto;
  margin-right: auto;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  border: 5px var(--second-color) solid;
  border-left: none;
  z-index: -1;
}
.bubble {
  background-color: #00dada;
  place-self: center;
  color: var(--background);
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: outline 100ms ease-in-out, filter 100ms ease-in-out,
    transform 200ms ease-in-out, box-shadow 50ms ease-in;
  box-shadow: 0 0 60px -30px #00f3f1;
}
.bubble > .date {
  font-size: 2.5rem;
  font-weight: 700;
}
.bubble > .detail {
  text-align: center;
  font-weight: 450;
  font-size: 0.9rem;
}
.bubble:hover {
  transform: scale(1.05);
  filter: brightness(70%);
  outline-offset: 2px;
  outline-width: 3px;
  outline-color: #fff;
  outline-style: dotted;
  box-shadow: 0 0 60px -10px #00bebe;
}

.guidelines {
  color: var(--second-color);
  width: 85%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 10vh;
}
.guidelines > h1 {
  text-align: center;
  font-family: Farenheight;
  font-size: 3rem;
}
.guidelines > ul {
  font-size: 1.3rem;
  display: flex;
  width: 90%;
  height: 100%;
  gap: 1rem;
  flex-direction: column;
  justify-content: space-between;
}

/* Sponsors */
.sponsors {
  color: var(--second-color);
  width: 85%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 10vh;
}
.sponsors > h1 {
  text-align: center;
  font-family: Farenheight;
  font-size: 3rem;
}
/* The flip card container - set the width and height to whatever you want. We have added the border property to demonstrate that the flip itself goes out of the box on hover (remove perspective if you don't want the 3D effect */
.flip-card {
  background-color: transparent;
  width: 200px;
  height: 200px;
  perspective: 1000px; /* Remove this if you don't want the 3D effect */
}

/* This container is needed to position the front and back side */
.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

/* Do an horizontal flip when you move the mouse over the flip box container */
.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

/* Position the front and back side */
.flip-card-front,
.flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  -webkit-backface-visibility: hidden; /* Safari */
  backface-visibility: hidden;
}

/* Style the front side (fallback if image is missing) */
.flip-card-front {
  background-color: var(--accent);
  color: var(--second-color);
}

/* Style the back side */
.flip-card-back {
  border: 3px var(--first-color) solid;
  background-color: rgb(69, 69, 69);
  color: var(--first-color);
  transform: rotateY(180deg);
}
.flip-card-back > button {
  font-size: 1.2rem;
  background-color: transparent;
  border: none;
  border-radius: 5px;
  outline: 2px solid var(--third-place);
  color: inherit;
  cursor: pointer;
  transition: all 300ms ease-in-out;
}
.flip-card-back > button:hover {
  background-color: var(--third-place);
  color: rgb(69, 69, 69);
}

/* FAQs */
.faqs {
  color: var(--second-color);
  width: 85%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 10vh;
}
.faqs > h1 {
  text-align: center;
  font-family: Farenheight;
  font-size: 3rem;
}
.faqs .faqs-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.faq {
  display: flex;
  flex-direction: column;
  border-radius: 0.5rem;
  border: 0 #173d97;
  transition: border 500ms;
}
.faq.active {
  border: 2px #173d97 solid;
}
.faq > .faq-header {
  cursor: pointer;
  display: flex;
  flex-direction: row;
  align-items: center;
  position: relative;
  background-color: #0c245a;
  border-radius: 0.5rem;
}
.faq-header h3 {
  margin: 10px 0;
  font-size: 1.6rem;
  padding: 0px 20px;
}

.faq .faq-header .open,
.faq .faq-header .close {
  text-align: center;
  position: absolute;
  right: 0;
  padding: 0 40px;
  font-size: 1.7rem;
  font-weight: bold;
  opacity: 0;
  transform: translateY(-2px);
  transition: all 500ms;
}

.faq .faq-header .open.active,
.faq .faq-header .close.active {
  opacity: 1;
  transform: translateY(0);
}

.faq .content {
  background-color: #0c235a7a;
  margin-top: -10px;
  line-height: 2;
  max-height: 0;
  overflow: hidden;
  transition: all 500ms ease-in-out;
}
.content p {
  padding: 1.2rem;
}

.faq .content.active {
  max-height: 500px;
}

/* Particles css */
#particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0px;
  left: 0px;
  z-index: 0;
}