* {
    box-sizing: border-box;
  }

  body {
    background-color: #000;
    color: #fff;
    font-family: "Space Mono", monospace;
    font-weight: 300;
    margin: 0;
    padding: 0;
  }

  main {
    display: flex;
    flex-direction: column;
  }

  h1, h2, h3, h4, h5 {
    line-height: 1;
    margin: 0.5em 0;
    padding: 0;
  }

  h1 {
    font-size: 2.6rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  h3 {
    font-size: 1.8rem;
  }

  h4 {
    font-size: 1.4rem;
  }

  p {
    line-height: 1.6;
  }

  ul, ol {
    line-height: 1.6;
  }

  strong {
    font-weight: 700;
  }

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

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

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

  .hidden {
    display: none;
  }

  span.summary {
    font-size: 2em;
    text-transform: uppercase;
  }

  a {
    color: #25b6c6;
    transition: 0.5s ease-in-out;
  }
  a:hover {
    color: #36e6f1;
  }

  a.button-cta {
    background-color: #000;
    color: #36e6f1;
    padding: 16px;
    margin: 16px;
    text-decoration: none;
    text-transform: uppercase;
    transition: 0.5s ease-in-out;
    display: inline-block;
    border: 1px solid #36e6f1;
  }
  a.button-cta:hover {
    border: 1px solid #36e6f1;
    background-color: #36e6f1;
    color: #000;
  }

  img, video {
    max-width: 100%;
    height: auto;
  }

  @media (min-width: 1024px) {
    h1 {
      font-size: 4.2rem;
    }
    h2 {
      font-size: 3.4rem;
    }
    h3 {
      font-size: 2.6rem;
    }
    h4 {
      font-size: 1.8rem;
      margin-top: 1.5rem;
    }
    a.button-cta {
      font-size: 2em;
      padding: 16px 32px;
    }
  }
  /* HEADER */
  header nav {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    position: fixed;
    top: 0;
    z-index: 10;
    background: rgba(0, 0, 0, 0.5);
  }
  header nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
  }
  header nav ul li {
    display: inline-flex;
    margin: 0 8px;
    padding: 0;
  }
  header nav ul li .cta-link {
    border: 1px solid #36e6f1;
    padding: 8px 16px;
    color: #36e6f1;
    transition: 0.5s ease-in-out;
  }
  header nav ul li .cta-link:hover {
    background: #36e6f1;
    border: 1px solid #25b6c6;
    color: #000;
  }
  header nav .menu-icon {
    display: none;
  }
  header nav .header-logo {
    width: 100px;
    height: auto;
  }
  header .hero-container {
    width: 100%;
    position: relative;
  }
  header .hero-container .video-container video {
    width: 100%;
  }
  header .hero-container .hero-content {
    position: absolute;
    width: 100%;
    margin: 0 auto;
    bottom: 0;
    text-align: center;
    z-index: 5;
  }
  header .hero-container .hero-content h1 {
    max-width: 1024px;
    margin: 0 auto 16px auto;
  }
  header .hero-container .hero-content span.summary {
    max-width: 1024px;
    margin: 0 auto;
  }
  header .hero-container::after {
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.25) 70%, rgba(0, 0, 0, 0.9) 90%, #000 100%);
    content: " ";
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: 2;
    top: 0;
    left: 0;
  }

  @media (max-width: 1024px) {
    header nav {
      flex-direction: row;
      flex-wrap: wrap;
      margin: 0;
      padding: 8px;
      align-items: center;
      background: rgba(0, 0, 0, 0.9);
    }
    header nav .menu-icon {
      font-size: 2em;
      text-align: right;
      display: block;
      align-self: center;
    }
    header nav .header-logo {
      width: 80px;
    }
    header nav ul:first-child {
      margin: 0;
      padding: 0;
    }
    header nav ul:first-child li {
      margin: 0;
      padding: 0;
    }
    header nav ul.main-nav {
      display: none;
      width: 100%;
      margin: 8px 0;
    }
    header nav ul.main-nav.active {
      display: flex;
      flex-direction: column;
      flex-wrap: wrap;
    }
    header nav ul li {
      width: 100%;
      padding: 8px 0;
      margin: 0;
      justify-content: center;
    }
    header .hero-container .video-container {
      overflow: hidden;
      position: relative;
    }
    header .hero-container .video-container video {
      margin-top: 60px;
    }
    header .hero-container .video-container::after {
      background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.25) 70%, rgba(0, 0, 0, 0.9) 90%, #000 100%);
      content: " ";
      width: 100%;
      height: 100%;
      position: absolute;
      z-index: 2;
      top: 0;
      left: 0;
    }
    header .hero-container .hero-content {
      position: relative;
      margin-top: -60px;
    }
    header .hero-container .hero-content h1 {
      font-size: 2.2em;
      padding: 0 16px;
    }
    header .hero-container .hero-content span.summary {
      font-size: 1.4em;
      padding: 0 16px;
    }
    header .hero-container::after {
      background: none;
    }
  }

  .tt-widget {
    border: 1px solid #36e6f1;
    width: 60%;
    display: block;
    margin: 0 auto;
  }
  @media (max-width: 500px) {
    .tt-widget {
      width: 95%;
    }
  }

  /* COUNTDOWN */
  .countdown-container {
    display: flex;
    flex-wrap: nowrap;
    flex-direction: row;
    margin: 16px 0;
  }
  .countdown-container .countdown-days, .countdown-container .countdown-hours, .countdown-container .countdown-minutes, .countdown-container .countdown-seconds {
    width: 25%;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #36e6f1;
    border: 1px solid #36e6f1;
    padding-bottom: 16px;
    margin-left: -1px;
  }
  .countdown-container .countdown-days span.countdown-number, .countdown-container .countdown-hours span.countdown-number, .countdown-container .countdown-minutes span.countdown-number, .countdown-container .countdown-seconds span.countdown-number {
    font-size: 3em;
  }
  .countdown-container .countdown-days span.countdown-format, .countdown-container .countdown-hours span.countdown-format, .countdown-container .countdown-minutes span.countdown-format, .countdown-container .countdown-seconds span.countdown-format {
    text-transform: uppercase;
  }

  @media (min-width: 1024px) {
    .countdown-container {
      max-width: 768px;
      margin: 64px auto;
    }
    .countdown-container .countdown-days span.countdown-number, .countdown-container .countdown-hours span.countdown-number, .countdown-container .countdown-minutes span.countdown-number, .countdown-container .countdown-seconds span.countdown-number {
      font-size: 5em;
    }
  }
  /* SPEAKERS */
  .list-group-item {
    background-color: #000;
    color: #fff;
  }
  .list-group-item img {
    align-self: center;
    filter: grayscale(100%);
    width: 64px;
    height: 64px;
  }

  .list-group-item-action:focus, .list-group-item-action:hover {
    background-color: #1F2325;
    color: #fff;
    border-radius: 0;
  }

  @media (min-width: 1024px) {
    .list-group {
      display: flex;
      flex-direction: row;
      flex-wrap: wrap;
    }
    .list-group-item {
      width: 50%;
      background-color: #000;
      color: #fff;
    }
    .list-group-item img {
      align-self: center;
      filter: grayscale(100%);
      width: 128px;
      height: 128px;
    }
  }
  /* AGENDA */
  .table {
    color: #fff;
  }

  /* Add these rules to balance track column widths */
  .agenda table td:not(:first-child) {
    width: 40%;
    max-width: 40%;
  }

  .agenda table td:first-child {
    width: 10%;
  }

  /* Add definition for small-font class */
  .small-font {
    font-size: 0.85rem;
  }

  /* MAP */
  .map {
    filter: invert(95%) hue-rotate(180deg);
  }

  /* SPONSORS */
  .sponsors {
    text-align: center;
  }
  .sponsors img {
    height: 70px;
    margin: 25px;
  }

  ul.sponsor-text {
    list-style-type: none;
    margin: 0;
    padding: 0;
  }
  ul.sponsor-text li {
    /* Puts the elements in a single line */
    display: inline-flex;
    margin: 0 16px 0 0;
    padding: 0;
    font-size: 2em;
  }

  /* CONTACT */
  .contact-container {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
  }
  .contact-container .contact-person {
    width: 100%;
    display: flex;
    align-items: center;
    margin: 16px 0;
  }
  .contact-container .contact-person img {
    width: 128px;
    height: auto;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 16px;
  }

  @media (min-width: 1024px) {
    .contact-container {
      display: flex;
      flex-direction: row;
      flex-wrap: nowrap;
    }
    .contact-container .contact-person {
      width: 50%;
      display: flex;
      align-items: center;
    }
    .contact-container .contact-person img {
      width: 128px;
      height: auto;
      border-radius: 50%;
      object-fit: cover;
      margin-right: 16px;
    }
  }
  /* CAROUSEL */
  .image-carousel {
    position: relative;
    max-width: 100%;
    max-width: fit-content;
    margin: auto;
  }

  .prev,
  .next {
    cursor: pointer;
    position: absolute;
    top: 45%;
    width: auto;
    padding: 16px;
    color: #fff;
    font-size: 2em;
    transition: 0.6s ease;
    user-select: none;
    background-color: #000;
    text-decoration: none;
    opacity: 0.75;
  }

  .next {
    right: 0;
  }

  .prev {
    left: 0;
  }

  /* PAGINATION */
  .history {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 16px 0;
    font-size: 1.2rem;
  }
  .history a {
    margin-left: 16px;
  }

  /* Thank You page styles */
  .thank-you-content {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .step-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(54, 230, 241, 0.2);
  }

  .confirmation-details {
    border: 1px solid #36e6f1;
  }

  .workshops-info {
    border: 1px solid #333;
  }

  .workshop-item {
    border-left: 3px solid #36e6f1;
    padding-left: 1rem;
  }

  .workshop-item:not(:last-child) {
    border-bottom: 1px solid #333;
    padding-bottom: 1rem;
  }

  .social-links a {
    transition: transform 0.3s ease;
  }

  .social-links a:hover {
    transform: scale(1.2);
  }

  .contact-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2rem;
  }

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

  .contact-portrait {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
  }

  .contact-link {
    color: #36e6f1;
    text-decoration: none;
  }

  .contact-link:hover {
    color: #fff;
    text-decoration: underline;
  }

  @media (max-width: 768px) {
    .thank-you-content h1 {
      font-size: 2.5rem;
    }
    
    .contact-container {
      gap: 1rem;
    }
    
    .step-card {
      margin-bottom: 1rem;
    }
  }