.tutorial-page { width: min(100%, 780px); padding-top: 48px; }
.tutorial-page .intro-heading { margin-bottom: 62px; }
.tutorial-page .portrait { width: 64px; height: 64px; }
.tutorial-page .site-title { font-size: 21px; }
.tutorial-page .essay-header h1 { font-size: clamp(34px, 5vw, 49px); line-height: 1.12; letter-spacing: -1.1px; text-wrap: balance; }
.tutorial-page .essay-header { margin-bottom: 34px; }
.tutorial-page .essay-body { font-size: 20px; line-height: 1.7; }
.tutorial-page .essay-body p { margin-bottom: 23px; }
.tutorial-page h2 { margin: 56px 0 22px; font-size: 29px; font-weight: 500; line-height: 1.25; letter-spacing: -.5px; }
.tutorial-page section { scroll-margin-top: 28px; }
.tutorial-page a { text-decoration-color: #9daba0; }
.tutorial-page .contents { display: flex; flex-wrap: wrap; gap: 7px 21px; margin: 34px 0 44px; padding-block: 20px; border-block: 1px solid #e8e8e2; font: 15px/1.65 ui-sans-serif, sans-serif; }
.tutorial-page .contents a { white-space: nowrap; }
.tutorial-page figure { margin: 31px 0; }
.tutorial-page figure img { display: block; width: 100%; height: auto; border: 1px solid #e4e4df; border-radius: 2px; }
.tutorial-page figcaption, .tutorial-page .small { color: #66665f; font: 14px/1.6 ui-sans-serif, sans-serif; }
.tutorial-page figcaption { margin-top: 12px; }
.tutorial-page .screenshot { display: block; cursor: zoom-in; }
.tutorial-page video { display: block; width: 100%; height: auto; background: #171717; border-radius: 3px; }
.tutorial-page video + .small { margin-top: 12px; }
.tutorial-page .video-chapters { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: -4px 0 26px; }
.tutorial-page .video-chapters button { border: 0; border-bottom: 1px solid #b1b1aa; background: none; padding: 5px 0; color: #444f40; font: 13px/1.4 ui-sans-serif, sans-serif; }
.tutorial-page .code-block { margin: 23px 0 27px; border: 1px solid #e7e7e0; background: #f7f7f3; border-radius: 3px; min-width: 0; overflow: hidden; }
.tutorial-page .code-tools { display: flex; justify-content: space-between; align-items: center; gap: 15px; padding: 8px 14px; border-bottom: 1px solid #e7e7e0; font: 12px/1.5 ui-sans-serif, sans-serif; color: #66665f; }
.tutorial-page .code-tools button { background: #fff; border: 1px solid #d3d5cb; border-radius: 3px; padding: 5px 10px; min-width: 56px; font: 12px/1.4 ui-sans-serif, sans-serif; color: #374632; }
.tutorial-page pre { margin: 0; padding: 19px 21px 22px; overflow: auto; font: 13px/1.75 ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace; tab-size: 2; }
.tutorial-page pre code { padding: 0; background: transparent; color: #30302e; font: inherit; white-space: pre; }
.tutorial-page p code, .tutorial-page li code { font: .76em/1.6 ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace; background: #f1f2ed; padding: .1em .25em; border-radius: 2px; overflow-wrap: anywhere; }
.tutorial-page kbd { font: .73em/1.4 ui-sans-serif, sans-serif; border: 1px solid #d5d5cd; border-radius: 3px; padding: 2px 4px; white-space: nowrap; }
.tutorial-page ol, .tutorial-page ul { padding-left: 26px; margin: 0 0 24px; }
.tutorial-page li { margin-bottom: 12px; padding-left: 3px; }
.tutorial-page details { margin: 27px 0 34px; padding: 16px 0; border-block: 1px solid #e5e6dd; font-size: 17px; line-height: 1.65; }
.tutorial-page summary { cursor: pointer; padding: 4px 0; color: #44523e; font-weight: 500; }
.tutorial-page details[open] summary { margin-bottom: 16px; }
.tutorial-page details p { margin-bottom: 17px; }
.tutorial-page details p:last-child { margin-bottom: 0; }
.tutorial-page details details { margin-inline: 14px; }
.tutorial-page .flow { display: flex; flex-direction: column; text-align: center; align-items: center; gap: 5px; margin: 27px 0; padding: 23px 14px; border-block: 1px solid #dedfd5; font: 14px/1.6 ui-monospace, Menlo, monospace; }
.tutorial-page .flow small { color: #72756b; font: 13px/1.4 ui-sans-serif, sans-serif; }
.tutorial-page .sources { margin-top: 48px; }
#image-viewer { position: fixed; width: min(1450px, calc(100vw - 30px)); max-width: none; max-height: calc(100dvh - 30px); padding: 48px 16px 16px; border: 0; background: #fff; }
#image-viewer::backdrop { background: rgb(255 255 255 / 95%); }
#image-viewer img { display: block; width: 100%; height: auto; max-height: calc(100dvh - 110px); object-fit: contain; }
#image-viewer > button { position: absolute; top: 10px; right: 16px; padding: 5px 10px; border: 1px solid #d1d3c8; background: #fff; font: 14px/1.4 ui-sans-serif, sans-serif; }
@media (max-width: 600px) {
  .tutorial-page { padding: 30px 22px; }
  .tutorial-page .intro-heading { margin-bottom: 42px; }
  .tutorial-page .portrait { width: 50px; height: 50px; }
  .tutorial-page .site-title { font-size: 20px; }
  .tutorial-page .site-nav { font-size: 12px; gap: 7px 13px; }
  .tutorial-page .essay-body { font-size: 18px; line-height: 1.7; }
  .tutorial-page h2 { font-size: 27px; margin-top: 44px; }
  .tutorial-page .contents { font-size: 13px; gap: 8px 16px; }
  .tutorial-page pre { padding: 15px; font-size: 12px; }
  .tutorial-page .code-tools { padding-inline: 10px; }
  .tutorial-page figure { margin-inline: -6px; }
  .tutorial-page details { font-size: 16px; }
}
@media print {
  .tutorial-page { width: 100%; padding: 0; }
  .tutorial-page .code-tools button, .tutorial-page .video-chapters, video, #image-viewer { display: none; }
  .tutorial-page pre { white-space: pre-wrap; }
  .tutorial-page pre code { white-space: pre-wrap; }
}