.course-card:nth-child(3):hover .course-icon-shell::after {
      animation: courseIconWaveShake 440ms ease-in-out both;
    }

    .course-card:nth-child(4):hover .course-icon-shell::before {
      animation: courseIconSpin 760ms cubic-bezier(0.22, 1, 0.36, 1) both;
    }

    .course-icon-accent {
      transform: rotate(45deg);
      transform-box: fill-box;
      transform-origin: center;
      transition:
        transform 260ms cubic-bezier(0.22, 1, 0.36, 1),
        filter 260ms ease,
        opacity 260ms ease;
    }

    .course-card:hover .course-icon-accent {
      animation: courseIconSpark 1.05s cubic-bezier(0.22, 1, 0.36, 1) infinite;
      filter: drop-shadow(0 0 8px rgba(96, 115, 240, 0.28));
    }

    .course-title {
      margin: 16px 0 8px;
      font-size: 16px;
      line-height: 1.2;
      font-weight: 700;
      color: #262934;
      transition: color 160ms ease;
    }

    .course-desc {
      margin: 0;
      font-size: 14px;
      line-height: 1.6;
      color: #757a88;
    }

    .course-desc,
    .onboarding-heading p,
    .step-card ul,
    .starter-guide p,
    .activity-heading p,
    .activity-card-desc,
    .news-desc,
    .learning-heading p,
    .learning-course-desc,
    .learning-resource p,
    .learning-cert-head p,
    .resource-heading p,
    .contribution-desc p,
    .doc-mini-card p,
    .co-build-heading p,
    .co-build-card p,
    .partners-heading p,
    .partners-card p {
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    .course-desc-slash {
      letter-spacing: -3px;
    }

    .course-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 12px;
      font-size: 14px;
      font-weight: 400;
      color: #414652;
    }

    .course-card:hover .course-link {
      color: #6073f0;
      font-weight: 600;
    }

    .course-link-icon {
      width: 16px;
      height: 16px;
      display: block;
      flex: 0 0 auto;
      transition: filter 180ms ease, transform 180ms ease;
    }

    .course-card:hover .course-link-icon {
      filter: brightness(0) saturate(100%) invert(43%) sepia(83%) saturate(2119%) hue-rotate(223deg) brightness(96%) contrast(92%);
    }

    .onboarding {
      width: min(var(--stage-width), calc(100% - 80px));
      min-height: 830px;
      margin: 0 auto;
      padding: 80px 0;
      background: #ffffff;
    }

    .onboarding-kicker {
      width: 221px;
      display: inline-flex;
      align-items: center;
      gap: 2px;
      height: 28px;
      padding: 0 12px 0 8px;
      border: 1px solid #e3e9f1;
      border-radius: 16px;
      background: #ffffff;
      color: #222222;
      font-size: 14px;
      line-height: 20px;
      box-shadow: none;
    }

    .onboarding-kicker span {
      white-space: nowrap;
    }

    .onboarding-kicker img {
      width: 16px;
      height: 16px;
    }

    .onboarding-heading {
      display: flex;
      align-items: baseline;
      gap: 16px;
      margin-top: 8px;
    }

    .onboarding-heading h2 {
      margin: 0;
      font-size: 36px;
      line-height: 44px;
      font-weight: 600;
      letter-spacing: 0;
      color: #222222;
    }

    .onboarding-heading p {
      margin: 0;
      color: #777777;
      font-size: 18px;
      line-height: 28px;
    }

    .steps {
      position: relative;
      display: grid;
      grid-template-columns: repeat(6, minmax(0, 1fr));
      align-items: end;
      margin-top: 4px;
    }

    .steps::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -4px;
      height: 4px;
      border-radius: 0 0 3px 3px;
      background: linear-gradient(90deg, #6fbdf5 0%, #8f9dff 25%, #dbaaf1 49%, #ffcdbd 73%, #ff7588 100%);
    }

    .step-card {
      position: relative;
      min-width: 0;
      height: 203px;
      padding: 16px 20px 18px 16px;
      display: flex;
      flex-direction: column;
      margin-left: -1px;
      border: 1px solid #dfe7ef;
      border-bottom: 0;
      border-radius: 12px 12px 0 0;
      background: #ffffff;
      overflow: hidden;
      transition:
        background 180ms ease,
        background-color 180ms ease,
        border-color 180ms ease,
        color 180ms ease;
    }

    .step-dot-canvas {
      position: absolute;
      z-index: 0;
      inset: 0;
      width: 100%;
      height: 100%;
      opacity: 0;
      pointer-events: none;
      transition: opacity 220ms ease;
    }

    .steps .step-card:is(:hover,:focus-visible) {
      border-color: transparent;
      background:
        radial-gradient(circle at 94% 94%, rgba(255, 157, 201, 0.66) 0%, rgba(212, 128, 235, 0.46) 21%, rgba(148, 103, 247, 0) 46%),
        linear-gradient(135deg, #668cff 0%, #6d7cff 44%, #806cf8 76%, #9a6cf3 100%);
      color: #ffffff;
    }

    .steps .step-card:is(:hover,:focus-visible) .step-dot-canvas {
      opacity: 1;
    }

    .step-card:first-child {
      margin-left: 0;
    }

    .step-card:nth-child(2) {
      height: 222px;
    }

    .step-card:nth-child(3) {
      height: 243px;
    }

    .step-card:nth-child(4) {
      height: 264px;
    }

    .step-card:nth-child(5) {
      height: 284px;
    }

    .step-card:nth-child(6) {
      height: 304px;
    }

    .step-top {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
    }

    .step-number {
      font-family: "Roboto Mono Local", monospace;
      font-size: 18px;
      line-height: 24px;
      font-weight: 300;
      color: #888888;
      transition: color 180ms ease;
    }

    .step-icon {
      width: 38px;
      height: 38px;
      flex: 0 0 auto;
      transition: opacity 240ms ease, transform 240ms ease;
    }

    .step-card h3 {
      position: absolute;
      z-index: 2;
      left: 16px;
      right: 16px;
      top: calc(100% - 137px);
      min-height: 21px;
      margin: 0;
      display: flex;
      align-items: flex-end;
      color: #222222;
      font-size: 15px;
      line-height: 21px;
      font-weight: 600;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      transition:
        top 380ms cubic-bezier(0.22, 1, 0.36, 1),
        color 220ms ease;
    }

    .step-card ul,
    .starter-guide ul {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .step-card ul {
      position: absolute;
      z-index: 2;
      left: 16px;
      right: 16px;
      top: calc(100% - 108px);
      color: #555555;
      font-size: 12px;
      line-height: 18px;
      transition:
        top 380ms cubic-bezier(0.22, 1, 0.36, 1),
        color 220ms ease;
    }

    .step-card li + li {
      margin-top: 4px;
    }

    .step-card li::before {
      content: "– ";
    }

    .step-card > .step-cta {
      position: absolute;
      z-index: 2;
      left: 16px;
      right: auto;
      bottom: 16px;
      height: 18px;
      display: inline-flex;
      justify-content: flex-start;
      align-items: center;
      gap: 4px;
      align-self: flex-start;
      margin-top: 0;
      color: #222222;
      font-size: 12px;
      line-height: 18px;
      transition:
        right 180ms ease,
        bottom 180ms ease,
        height 180ms ease,
        border-radius 180ms ease,
        background-color 180ms ease,
        color 180ms ease;
    }

    .step-card > .step-cta::before {
      content: attr(data-hover-label);
      display: none;
      color: #222222;
      font-size: 12px;
      line-height: 18px;
      font-weight: 600;
      transition: color 160ms ease;
    }

    .steps .step-card > .step-cta {
      transition:
        right 300ms ease,
        bottom 300ms ease,
        height 300ms ease,
        border-radius 300ms ease,
        background-color 220ms ease,
        color 200ms ease,
        opacity 200ms ease;
    }

    .steps .step-card:is(:hover,:focus-visible) .step-number,
    .steps .step-card:is(:hover,:focus-visible) .step-icon {
      opacity: 0;
      transform: translateY(-2px);
    }

    .steps .step-card:is(:hover,:focus-visible) h3,
    .steps .step-card:is(:hover,:focus-visible) ul {
      color: #ffffff;
      text-shadow:
        0 0 2px rgba(102, 137, 255, 0.95),
        0 0 6px rgba(111, 118, 251, 0.92),
        0 0 14px rgba(144, 105, 248, 0.88),
        0 1px 8px rgba(116, 118, 246, 0.84);
    }

    .steps .step-card:is(:hover,:focus-visible) h3 {
      top: 24px;
      align-items: flex-start;
    }

    .steps .step-card:is(:hover,:focus-visible) ul {
      top: 53px;
    }

    .steps .step-card:is(:hover,:focus-visible) > .step-cta {
      right: 16px;
      bottom: 16px;
      height: 30px;
      justify-content: center;
      border-radius: 999px;
      background: #ffffff;
      color: #222222;
      gap: 0;
      font-size: 0;
    }

    .steps .step-card:is(:hover,:focus-visible) > .step-cta::before {
      display: block;
    }

    .steps .step-card:is(:hover,:focus-visible) > .step-cta:hover {
      background: #ffffff;
      color: #222222;
      opacity: 1;
    }

    .steps .step-card:is(:hover,:focus-visible) > .step-cta:hover::before {
      color: #4e63eb;
    }

    .steps .step-card:is(:hover,:focus-visible) > .step-cta .detail-arrow {
      display: none;
    }

    .detail-arrow {
      display: block;
      width: 14px;
      height: 14px;
      flex: 0 0 auto;
    }

    .starter-guides {
      margin-top: 41px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
    }

    .starter-guide {
      position: relative;
      width: auto;
      height: 268px;
      padding: 24px 24px 23px;
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border: 1px solid transparent;
      border-radius: 12px;
      background: #f5f6fa;
    }

    .starter-guide h3 {
      margin: 0;
      font-size: 20px;
      line-height: 28px;
      font-weight: 600;
      color: #222222;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    .starter-guide p {
      width: 100%;
      margin: 4px 0 0;
      color: #777777;
      font-size: 14px;
      line-height: 20px;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      white-space: nowrap;
    }

    .starter-guide ul {
      position: relative;
      z-index: 1;
      margin-top: 32px;
      color: #222222;
      font-size: 12px;
      line-height: 18px;
    }

    .starter-guide li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .starter-guide li + li {
      margin-top: 4px;
    }

    .starter-guide li img {
      width: 12px;
      height: 12px;
      flex: 0 0 auto;
    }

    .starter-guide > .starter-guide-cta {
      position: relative;
      z-index: 1;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      align-self: flex-start;
      margin-top: auto;
      color: #222222;
      font-size: 14px;
      line-height: 18px;
    }

    .starter-guide-art {
      position: absolute;
      right: 24px;
      bottom: 16px;
      width: 166px;
      height: 166px;
      object-fit: contain;
      pointer-events: none;
    }

    .starter-guide:nth-child(2) .starter-guide-art {
      right: 20px;
      width: 200px;
      height: 166px;
    }

    .starter-guide:nth-child(3) .starter-guide-art {
      width: 156px;
      height: 166px;
    }

    .guide-duration {
      margin-top: 40px;
      display: flex;
      align-items: center;
      gap: 22px;
      color: #888888;
      font-size: 14px;
      line-height: 20px;
      white-space: nowrap;
    }

    .guide-duration::before,
    .guide-duration::after {
      content: "";
      flex: 1 1 auto;
      border-top: 1px dashed #e3e7ed;
    }

    .activity-section {
      background: #f6f7fb;
      padding: 80px 0 80px;
    }

    .activity-stage {
      width: min(var(--stage-width), calc(100% - 80px));
      margin: 0 auto;
    }

    .activity-heading {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
    }

    .activity-heading-copy {
      display: flex;
      align-items: baseline;
      gap: 16px;
      min-width: 0;
    }

    .activity-heading h2 {
      margin: 0;
      font-size: 36px;
      line-height: 44px;
      font-weight: 600;
      letter-spacing: 0;
      white-space: nowrap;
    }

    .activity-heading p {
      margin: 0;
      color: #777777;
      font-size: 18px;
      line-height: 28px;
    }

    .activity-more,
    .news-more {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      flex: 0 0 auto;
      color: #222222;
      font-size: 14px;
      line-height: 18px;
    }

    .activity-layout {
      display: grid;
      grid-template-columns: 980px 400px;
      gap: 20px;
      align-items: start;
    }

    .activity-list {
      display: grid;
      gap: 20px;
      min-width: 0;
    }

    .activity-card,
    .community-news,
    .activity-banner {
      border: 1px solid #dfe5ed;
      border-color: #e3e9f1;
      border-radius: 12px;
      background: #ffffff;
    }

    .activity-card {
      width: 980px;
      height: 271px;
      min-height: 271px;
      padding: 12px 24px 12px 12px;
      display: grid;
      grid-template-columns: 392px 528px;
      gap: 24px;
    }

    .activity-cover {
      width: 392px;
      height: 247px;
      min-height: 247px;
      display: grid;
      place-items: center;
      overflow: hidden;
      border-radius: 10px;
      background: #e2e2e2;
      color: #9299a6;
      font-size: 13px;
    }

    .activity-cover img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }

    .activity-card-body {
      width: 528px;
      height: 207px;
      min-width: 0;
      margin-top: 20px;
      padding: 0;
      display: flex;
      flex-direction: column;
    }

    .activity-card h3 {
      margin: 0;
      color: #222222;
      font-size: 18px;
      line-height: 25px;
      font-weight: 600;
    }

    .activity-card-desc {
      margin: 8px 0 0;
      color: #666666;
      font-size: 14px;
      line-height: 20px;
    }

    .activity-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 8px;
    }

    .activity-tags > span {
      width: 60px;
      height: 24px;
      padding: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      background: #f1f1f1;
      color: #444444;
      font-size: 12px;
      line-height: 18px;
    }

    .activity-tags > span:nth-child(2) {
      width: 51px;
    }

    .activity-tags > span > span,
    .activity-signup span {
      display: inline-block;
      transform: translateY(-0.5px);
    }

    .activity-time {
      margin: 8px 0 0;
      display: flex;
      align-items: center;
      gap: 4px;
      color: #444444;
      font-size: 12px;
      line-height: 18px;
    }

    .meta-clock {
      display: block;
      width: 14px;
      height: 14px;
      flex: 0 0 auto;
    }

    .activity-card-footer {
      margin-top: auto;
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 16px;
    }

    .activity-signup {
      position: relative;
      width: 104px;
      height: 42px;
      padding: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      border-radius: 999px;
      background: linear-gradient(100deg, #ff7428 0%, #ff425f 48%, #f52bce 100%);
      color: #ffffff;
      font-size: 14px;
      line-height: 24px;
      isolation: isolate;
    }

    .activity-signup::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      border-radius: inherit;
      background: #ff4a33;
      opacity: 0;
      transition: opacity 180ms ease;
    }

    .activity-signup:hover {
      color: #ffffff;
    }