.tutorial-main {
  overflow-x: clip;
}

.tutorial-hero {
  position: relative;
  overflow: clip;
  border-bottom: 1px solid var(--color-border);
  padding-top: 88px;
  padding-bottom: 72px;
}

.tutorial-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(118deg, var(--color-accent-soft), var(--color-transparent) 48%),
    radial-gradient(420px 260px at 82% 18%, var(--color-lavender-soft), var(--color-transparent) 72%);
  content: "";
}

.tutorial-hero-copy {
  position: relative;
  display: grid;
  max-width: var(--reading-width);
  gap: 20px;
}

.tutorial-hero-copy h1 {
  max-width: 720px;
}

.tutorial-hero-actions {
  margin-top: 8px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.tutorial-facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tutorial-facts li:not(:first-child)::before {
  color: var(--color-accent);
  content: "◆";
  font-size: 8px;
}

.tutorial-toc-wrap {
  position: relative;
  z-index: 4;
  padding-top: 28px;
}

.tutorial-content {
  padding-top: 24px;
  padding-bottom: 96px;
}

.tutorial-step {
  padding-top: 74px;
  padding-bottom: 18px;
}

.tutorial-step + .tutorial-step {
  border-top: 1px solid var(--color-border);
}

.step-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 18px;
  margin-bottom: 30px;
}

.step-heading > div {
  display: grid;
  gap: 8px;
}

.step-index {
  display: inline-flex;
  min-width: 74px;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  padding: 7px 12px;
  color: var(--color-accent-light);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.tutorial-step > p {
  color: var(--color-text-muted);
  font-size: 16.5px;
}

.tutorial-step > p + p,
.tutorial-step > p + pre,
.tutorial-step > pre + p,
.tutorial-step > p + .callout,
.tutorial-step > .callout + p,
.tutorial-step > p + .tutorial-action,
.tutorial-step > .platform-instructions + p {
  margin-top: 20px;
}

.tutorial-step a:not(.btn) {
  color: var(--color-accent-light);
  text-decoration: underline;
  text-decoration-color: var(--color-accent-line);
  text-underline-offset: 3px;
}

.tutorial-step pre {
  margin-top: 20px;
}

.tutorial-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  margin-top: 28px;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(105deg, var(--color-accent-soft), var(--color-transparent)),
    var(--color-panel);
  padding: 22px;
}

.tutorial-action strong {
  display: block;
  margin-bottom: 4px;
  color: var(--color-text);
}

.tutorial-action p {
  color: var(--color-text-muted);
}

.tutorial-action-success {
  border-color: var(--color-mint-line);
  background:
    linear-gradient(105deg, var(--color-mint-soft), var(--color-transparent)),
    var(--color-panel);
}

.platform-instructions {
  display: grid;
  gap: 16px;
  margin-top: 28px;
  margin-bottom: 24px;
}

.platform-instruction {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  padding: 26px;
  box-shadow: inset 0 1px 0 var(--color-white-line);
}

.platform-instruction:nth-child(even) {
  background:
    linear-gradient(120deg, var(--color-lavender-soft), var(--color-transparent) 46%),
    var(--color-panel);
}

.platform-instruction:nth-child(3n) {
  background:
    linear-gradient(120deg, var(--color-mint-soft), var(--color-transparent) 46%),
    var(--color-panel);
}

.platform-letter {
  display: grid;
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent-light);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
}

.platform-instruction > div {
  min-width: 0;
}

.platform-instruction h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.platform-instruction p {
  color: var(--color-text-muted);
}

.platform-instruction p + p {
  margin-top: 12px;
}

.tutorial-finish {
  display: grid;
  gap: 18px;
  margin-top: 78px;
  overflow: clip;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(360px 230px at 92% 100%, var(--color-lavender-soft), var(--color-transparent)),
    linear-gradient(120deg, var(--color-accent-soft), var(--color-transparent) 58%),
    var(--color-panel-raised);
  padding: 38px;
  box-shadow: var(--shadow-panel);
}

.tutorial-finish p {
  max-width: 680px;
  color: var(--color-text-muted);
  font-size: 16.5px;
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 64px;
    padding-bottom: 56px;
  }

  .tutorial-content {
    padding-bottom: 72px;
  }

  .tutorial-step {
    padding-top: 60px;
  }

  .step-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .step-index {
    justify-self: start;
  }

  .tutorial-action {
    grid-template-columns: 1fr;
  }

  .tutorial-action .btn {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .tutorial-hero {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .tutorial-toc-wrap {
    padding-top: 20px;
  }

  .tutorial-step > p {
    font-size: 16px;
  }

  .platform-instruction {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .platform-letter {
    width: 44px;
    height: 44px;
  }

  .tutorial-finish {
    margin-top: 58px;
    padding: 24px;
  }

  .tutorial-finish .btn {
    width: 100%;
  }
}