@keyframes welcome {

      0%,
      20% {
          opacity: 0;
          transform: scale(0.9);
      }

      100% {
          opacity: 1;
          transform: scale(1);
      }
  }

  body {
      margin: 0;
      font-family: Lato, Arial, sans-serif;
      background-color: #212121;
      color: #f0f0f0;
      transform-origin: top center;
      animation: welcome 2s cubic-bezier(0.2, 0.8, 0.2, 1);
      max-width: 1000px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.4;
  }

  html {
      background-color: #111111;
  }

  header,
  footer {
      text-align: center;
      padding: 2em;
      background-color: #111111;
  }

  main {
      padding: 1em 1em;
  }

  b {
      color: #a0a0a0;
  }

  @keyframes pointer {
      50% {
          rotate: 270deg;
      }

      100% {
          rotate: 0deg;
      }
  }

  #img1 {
      background-image: url('img_1.webp');
      width: 150px;
      height: 150px;
      background-size: contain;
      margin-left: auto;
      margin-right: auto;
  }

  #img2 {
      background-image: url('img_2.webp');
      width: 150px;
      height: 150px;
      background-size: contain;
      animation: pointer 2s ease-in-out 0.5s;
  }

  a:any-link {
      line-break: anywhere;
      text-decoration: underline;
      color: rgb(100, 172, 255)
  }

  #toTop {
      display: none;
      pointer-events: none;
      opacity: 0;
      transform: translateY(90px);
      position: fixed;
      bottom: 30px;
      right: 30px;
      height: 50px;
      width: 50px;
      cursor: pointer;
      border-radius: 50%;
      background-color: rgba(255, 255, 255, 0.5);
      z-index: 999;
      transition: opacity 1s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1s cubic-bezier(0.2, 0.8, 0.2, 1), background-color 0.5s linear, box-shadow 0.5s linear;
      background-image: url('top.png');
      background-size: contain;
      background-repeat: no-repeat;
      -webkit-tap-highlight-color: transparent;
  }

  #toTop:active {
      background-color: white;
      box-shadow: white 0 0 10px, white 0 0 20px;
      transition: 0s all;
  }

  h3:has(> .accordion) {
      margin: 0;
      padding: 0;
      font-size: inherit;
      font-weight: inherit;
      line-height: inherit;
  }

  .accordion {
      position: relative;
      display: block;
      padding: 15px 10px;
      padding-right: 40px;
      cursor: pointer;
      font-size: large;
      transition: 1s color;
      border: 2px solid #555555;
      border-bottom: 2px solid #555555;
      margin-top: -2px;
      color: #a8c7fa;
      transition: .3s all;
  }

  .accordion::after {
      content: "";
      position: absolute;
      right: 7px;
      top: 50%;
      width: 30px;
      height: 30px;
      background-image: url('drop.png');
      background-size: contain;
      background-repeat: no-repeat;
      transition: transform 0.25s ease-out;
      transform: translateY(-50%) rotate(0deg);
  }

  .accordion.active {
      background-color: #313846;
  }

  .accordion.active::after {
      transform: translateY(-50%) rotate(-180deg);
  }

  .panel {
      overflow: hidden;
      transition: max-height .4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .inner {
      white-space: pre-wrap;
      padding-top: 10px;
      margin-bottom: 20px;

      padding-left: 12px;

      position: relative;
  }

  .inner::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      width: 2px;
      height: 100%;
      background-color: #555555;
  }

  dialog {
      border: none;
      border-radius: 12px;
      padding: 1rem;
      padding-top: 0;
      background: rgba(55, 55, 55, 0.85);
      backdrop-filter: blur(10px);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
      max-width: 400px;
      width: 80%;

      opacity: 0;
      transform: scale(.9);
      transition:
          opacity .15s ease-out,
          transform .15s ease-out,
          display .15s ease allow-discrete,
          overlay .15s ease allow-discrete;
  }

  dialog button {
      background-color: transparent;
      border: none;
      float: right;
      padding: 8px 15px;
      border-radius: 5px;
      cursor: pointer;
  }

  dialog button:hover {
      background-color: #555555;
  }

  dialog:not([open]) {
      opacity: 0;
      transform: scale(.9);
  }

  dialog::backdrop {
      background: rgba(0, 0, 0, 0.5);
      backdrop-filter: blur(4px);
      transition:
          display .15s allow-discrete,
          overlay .15s allow-discrete,
          opacity .15s linear;
      opacity: 0;
  }

  dialog[open]::backdrop {
      opacity: 1;
  }

  dialog[open] {
      opacity: 1;
      transform: translateY(0);
  }

  @starting-style {
      dialog[open] {
          opacity: 0;
          transform: scale(.9);
      }
  }