/* Shared by the homepage directory and standalone tutorial pages. */
.tutorial-section { padding: 64px 0; border-top: 1px solid var(--line); scroll-margin-top: 24px; }
.tutorial-directory { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; align-items: start; }
.tutorial-platform { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: var(--card); }
.tutorial-platform h3 { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin: 0 0 16px; font-size: 22px; }
.tutorial-platform h3 small { color: var(--muted); font-size: 14px; font-weight: 400; }
.tutorial-link { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 0; border-top: 1px solid var(--line); font-size: 16px; font-weight: 650; }
.tutorial-link small { display: block; color: var(--muted); font-size: 14px; font-weight: 400; margin-top: 4px; }
.tutorial-link > span:last-child { font-size: 26px; color: var(--accent); }
.tutorial-link:hover, .tutorial-back:hover, .tutorial-all:hover { color: var(--accent); text-decoration: underline; }
.tutorial-source-note { margin: 24px 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.tutorial-prompt { display: inline-block; padding: 10px 18px; margin: 0 0 24px; color: var(--accent); background: #e8f8ef; border-radius: 12px; font-size: 16px; }
.tutorial-detail { max-width: 1000px; padding-top: 32px; padding-bottom: 40px; }
.tutorial-back { font-size: 16px; color: var(--accent); }
.tutorial-detail-heading { margin: 32px 0; }
.tutorial-kicker { color: var(--accent); font-size: 14px; font-weight: 700; }
.tutorial-detail-heading h1 { font-size: clamp(28px, 4vw, 44px); margin: 12px 0; line-height: 1.35; letter-spacing: -.025em; }
.tutorial-detail-heading > p:last-child { color: var(--muted); font-size: 16px; }
.tutorial-warning { padding: 18px 24px; margin-bottom: 28px; border: 1px solid #f0d2bd; border-radius: 16px; background: #fff7ef; color: #785b23; font-size: 16px; }
.tutorial-steps { padding: 0; margin: 0; list-style: none; }
.tutorial-step { display: grid; grid-template-columns: minmax(180px, 1fr) minmax(0, 560px); gap: 28px; padding: 28px; margin-bottom: 28px; background: #fff; border: 1px solid var(--line); border-radius: 22px; }
.tutorial-step-copy { min-width: 0; }
.tutorial-step h2 { margin: 0 0 12px; color: var(--accent); font-size: 20px; }
.tutorial-step p { margin: 0; font-size: 16px; line-height: 1.9; overflow-wrap: anywhere; }
.tutorial-step figure { min-width: 0; margin: 0; text-align: center; }
.tutorial-step figure a { display: block; }
.tutorial-step img { display: block; width: auto; max-width: 100%; height: auto; max-height: 850px; margin: 0 auto; border-radius: 10px; }
.tutorial-step figcaption { margin-top: 12px; font-size: 14px; color: var(--muted); }
.tutorial-next { padding: 28px; margin-top: 32px; border-radius: 22px; background: #e8f8ef; }
.tutorial-next h2 { margin: 0; font-size: 24px; }
.tutorial-next p { font-size: 16px; line-height: 1.9; }
.tutorial-cta { display: inline-block; padding: 14px 24px; border-radius: 12px; color: white; background: var(--accent); font-size: 16px; font-weight: 650; }
.tutorial-all { display: inline-block; padding: 14px; font-size: 16px; color: var(--accent); }
.tutorial-section a:focus-visible, .tutorial-detail a:focus-visible, .site-header a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
@media (max-width: 900px) {
  .site-header nav { display: flex; gap: 16px; flex-wrap: wrap; }
  .tutorial-directory { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tutorial-step { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .site-header { height: auto; min-height: 68px; gap: 12px; flex-wrap: wrap; padding: 14px 0; }
  .site-header nav { gap: 14px; font-size: 14px; }
  .site-header .header-status { display: none; }
  .tutorial-directory { grid-template-columns: minmax(0, 1fr); }
  .tutorial-section { padding: 44px 0; }
  .tutorial-section .section-heading { margin-bottom: 24px; }
  .tutorial-platform { padding: 20px; }
  .tutorial-detail { padding-top: 24px; }
  .tutorial-step { padding: 18px; gap: 20px; }
  .tutorial-step img { max-height: none; }
  .tutorial-next { padding: 22px; }
  .tutorial-cta, .tutorial-all { display: block; text-align: center; }
}