.tutorial-directory {
  width: min(1180px, calc(100% - 40px));
  margin: 18px auto 0;
  padding: 10px;
  border: 1px solid var(--line, #263242);
  border-radius: 7px;
  background: rgba(15, 20, 28, 0.94);
}

.tutorial-directory-label {
  margin: 0 0 8px;
  color: var(--muted, #98a4b3);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
}

.tutorial-directory-links {
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.tutorial-directory-link {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted, #98a4b3);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s ease, background .18s ease, color .18s ease;
}

.tutorial-directory-link:hover,
.tutorial-directory-link:focus-visible {
  border-color: rgba(0, 216, 238, .25);
  background: rgba(0, 216, 238, .08);
  color: var(--ink, #f4f7fb);
  outline: none;
}

.tutorial-directory-link.is-active {
  border-color: rgba(0, 216, 238, .32);
  background: rgba(0, 216, 238, .13);
  box-shadow: inset 0 -3px 0 var(--accent, #00d8ee);
  color: var(--ink, #f4f7fb);
}

.tutorial-directory-icon {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line, #263242);
  border-radius: 5px;
  color: var(--accent, #00d8ee);
  font-size: 11px;
  line-height: 1;
}

.tutorial-share-button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 15px;
  border: 1px solid rgba(0, 216, 238, .32);
  border-radius: 6px;
  background: rgba(0, 216, 238, .1);
  color: var(--ink, #f4f7fb);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.tutorial-share-button:hover,
.tutorial-share-button:focus-visible {
  border-color: var(--accent, #00d8ee);
  background: rgba(0, 216, 238, .17);
  outline: none;
}

.tutorial-share-button.primary {
  border-color: transparent;
  background: var(--accent, #00d8ee);
  color: #03141a;
}

.tutorial-share-icon {
  width: 16px;
  height: 16px;
  background: currentColor;
  -webkit-mask: url("/icons/share-2.svg") center / contain no-repeat;
  mask: url("/icons/share-2.svg") center / contain no-repeat;
}

.tutorial-directory-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.tutorial-directory-top .tutorial-directory-links {
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.tutorial-related {
  width: min(1180px, calc(100% - 40px));
  margin: 56px auto 0;
  padding: 32px;
  border-top: 1px solid var(--line, #263242);
  border-bottom: 1px solid var(--line, #263242);
  background: rgba(15, 20, 28, .72);
}

.tutorial-related-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.tutorial-related-head p,
.tutorial-related-head h2 { margin: 0; }
.tutorial-related-head p { color: var(--accent, #00d8ee); font-size: 11px; font-weight: 800; }
.tutorial-related-head h2 { margin-top: 5px; font-size: 24px; }
.tutorial-related-actions { display: flex; gap: 9px; flex-wrap: wrap; }

.tutorial-related .tutorial-directory-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tutorial-related .tutorial-directory-link {
  min-height: 72px;
  border-color: var(--line, #263242);
  background: var(--surface, #0f141c);
}

.tutorial-related .tutorial-directory-link:hover,
.tutorial-related .tutorial-directory-link.is-active {
  border-color: rgba(0, 216, 238, .38);
  background: rgba(0, 216, 238, .08);
}

.tutorial-share-dialog {
  width: min(520px, calc(100% - 28px));
  padding: 0;
  border: 1px solid var(--line-strong, #344459);
  border-radius: 8px;
  background: var(--surface, #0f141c);
  color: var(--ink, #f4f7fb);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .55);
}

.tutorial-share-dialog::backdrop { background: rgba(0, 3, 8, .78); }
.tutorial-share-dialog-body { padding: 24px; }
.tutorial-share-dialog-kicker { margin: 0 0 5px; color: var(--accent, #00d8ee); font-size: 11px; font-weight: 800; }
.tutorial-share-dialog h2 { margin: 0; font-size: 23px; }
.tutorial-share-preview {
  min-height: 174px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  margin-top: 18px;
  padding: 22px;
  overflow: hidden;
  border: 1px solid var(--line, #263242);
  border-radius: 7px;
  background:
    linear-gradient(90deg, rgba(3, 8, 14, .96), rgba(3, 8, 14, .55)),
    url("/brand/share-og-1200x630.png") center / cover no-repeat;
}
.tutorial-share-preview strong { font-size: 20px; line-height: 1.35; }
.tutorial-share-preview span { max-width: 390px; margin-top: 7px; color: #c4cfdb; font-size: 12px; line-height: 1.6; }
.tutorial-share-hint { margin: 14px 0 0; color: var(--muted, #98a4b3); font-size: 12px; line-height: 1.7; }
.tutorial-share-status { min-height: 20px; margin: 10px 0 0; color: #8cebd8; font-size: 12px; }
.tutorial-share-dialog-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 16px; }
.tutorial-share-close {
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid var(--line, #263242);
  border-radius: 6px;
  background: transparent;
  color: var(--muted, #98a4b3);
  font: inherit;
  cursor: pointer;
}

.tutorial-static-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.section-intro > p:not(.section-index) {
  max-width: 720px;
  color: var(--muted, #98a4b3);
  line-height: 1.75;
}

.tutorial-static-card {
  min-height: 160px;
  padding: 20px;
  border: 1px solid var(--line, #263242);
  border-radius: 7px;
  background: var(--surface, #0f141c);
}
.tutorial-static-card > span { color: var(--accent, #00d8ee); font-size: 11px; font-weight: 800; }
.tutorial-static-card h3 { margin: 12px 0 8px; font-size: 17px; }
.tutorial-static-card p { margin: 0; color: var(--muted, #98a4b3); font-size: 13px; line-height: 1.75; }

.tutorial-callout {
  margin-top: 20px;
  padding: 16px 18px;
  border-left: 3px solid var(--accent, #00d8ee);
  background: rgba(0, 216, 238, .08);
  color: #c9d7e3;
  font-size: 13px;
  line-height: 1.75;
}

.tutorial-checklist { display: grid; gap: 9px; margin: 18px 0 0; padding: 0; list-style: none; }
.demo-panel > .tutorial-checklist { padding: 0 16px 16px; }
.tutorial-checklist li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  color: var(--muted, #98a4b3);
  font-size: 13px;
  line-height: 1.65;
}
.tutorial-checklist li::before {
  content: "✓";
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(37, 200, 155, .4);
  border-radius: 5px;
  color: #25c89b;
  font-size: 11px;
}

.tutorial-browser-frame {
  overflow: hidden;
  border: 1px solid var(--line-strong, #344459);
  border-radius: 8px;
  background: #090d13;
}
.tutorial-browser-bar {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 13px;
  border-bottom: 1px solid var(--line, #263242);
  background: #151c27;
}
.tutorial-browser-bar i { width: 8px; height: 8px; border-radius: 50%; background: #536176; }
.tutorial-browser-bar span { margin-left: 7px; color: var(--muted, #98a4b3); font-size: 11px; }
.tutorial-browser-content { display: grid; grid-template-columns: minmax(0, 1fr) 250px; min-height: 260px; }
.tutorial-browser-page { display: grid; align-content: center; gap: 10px; padding: 24px; background: #0b111b; }
.tutorial-browser-page span { height: 11px; border-radius: 4px; background: #1c2a3d; }
.tutorial-browser-page span:nth-child(2) { width: 72%; }
.tutorial-browser-page span:nth-child(3) { width: 88%; }
.tutorial-browser-sidebar { padding: 14px; border-left: 1px solid var(--line, #263242); background: var(--surface, #0f141c); }
.tutorial-browser-sidebar strong { display: block; margin-bottom: 12px; font-size: 13px; }
.tutorial-browser-search { padding: 10px; border: 1px solid var(--line, #263242); border-radius: 6px; color: var(--muted, #98a4b3); font-size: 11px; }
.tutorial-browser-card { margin-top: 9px; padding: 11px; border: 1px solid rgba(0, 216, 238, .24); border-radius: 6px; background: rgba(0, 216, 238, .07); }
.tutorial-browser-card b { display: block; font-size: 12px; }
.tutorial-browser-card small { display: block; margin-top: 4px; color: var(--muted, #98a4b3); line-height: 1.55; }

.tutorial-install-path { display: grid; gap: 10px; }
.tutorial-install-path > div {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 11px;
  align-items: start;
  padding: 13px;
  border: 1px solid var(--line, #263242);
  border-radius: 7px;
  background: var(--surface, #0f141c);
}
.tutorial-install-path > div > span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: rgba(0, 216, 238, .12);
  color: var(--accent, #00d8ee);
  font-size: 12px;
  font-weight: 800;
}
.tutorial-install-path strong { display: block; font-size: 13px; }
.tutorial-install-path p { margin: 4px 0 0; color: var(--muted, #98a4b3); font-size: 12px; line-height: 1.65; }
.tutorial-install-path code,
.tutorial-callout code { color: #bdf6eb; font-family: Consolas, monospace; }

.tutorial-faq { display: grid; gap: 9px; margin-top: 18px; }
.tutorial-faq details { border: 1px solid var(--line, #263242); border-radius: 7px; background: var(--surface, #0f141c); }
.tutorial-faq summary { padding: 15px 17px; color: var(--ink, #f4f7fb); font-size: 14px; font-weight: 700; cursor: pointer; }
.tutorial-faq details p { margin: 0; padding: 0 17px 17px; color: var(--muted, #98a4b3); font-size: 13px; line-height: 1.75; }

@media (max-width: 760px) {
  .tutorial-directory { width: calc(100% - 24px); margin-top: 12px; }
  .tutorial-directory-top { display: block; }
  .tutorial-directory-label { display: none; }
  .tutorial-directory-top .tutorial-share-button { width: 100%; margin-top: 9px; }
  .tutorial-directory-links { overflow-x: auto; }
  .tutorial-directory-link { min-height: 38px; padding: 0 11px; font-size: 12px; }
  .tutorial-directory-icon { display: none; }
  .tutorial-related { width: calc(100% - 24px); padding: 24px 14px; }
  .tutorial-related-head { display: block; }
  .tutorial-related-actions { margin-top: 15px; }
  .tutorial-related-actions .tutorial-share-button { width: 100%; }
  .tutorial-related .tutorial-directory-links { grid-template-columns: 1fr; overflow: visible; }
  .tutorial-related .tutorial-directory-link { min-height: 54px; }
  .tutorial-static-grid { grid-template-columns: 1fr; }
  .tutorial-browser-content { grid-template-columns: 1fr; }
  .tutorial-browser-page { min-height: 130px; }
  .tutorial-browser-sidebar { border-top: 1px solid var(--line, #263242); border-left: 0; }
  .tutorial-share-dialog-actions { display: grid; grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .tutorial-directory-link,
  .tutorial-share-button { transition: none; }
}