:root {
  --tutorial-line-width: 2px;
  --tutorial-step-size: 38px;
}

.tutorial-hero {
  position: relative;
  background:
    radial-gradient(circle at 12% 20%, var(--color-sky-glass-faint), var(--color-transparent) 28%),
    radial-gradient(circle at 88% 24%, var(--color-warning-glass-faint), var(--color-transparent) 30%),
    var(--color-bg);
}

.tutorial-hero::after {
  position: absolute;
  inset: auto 0 0;
  height: var(--tutorial-line-width);
  background: linear-gradient(90deg, var(--color-sky), var(--color-warning), var(--color-accent));
  content: "";
}

.tutorial-heading {
  max-width: var(--reading-width);
}

.tutorial-heading .button-row {
  margin-top: 30px;
}

.tutorial-route {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 50px 0 0;
  padding: 0;
  list-style: none;
}

.tutorial-route li {
  min-width: 0;
}

.tutorial-route a {
  display: grid;
  min-height: 148px;
  align-content: start;
  gap: 5px;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.tutorial-route a:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
  color: var(--color-text);
  box-shadow: var(--shadow-card-hover);
}

.tutorial-route span {
  display: inline-flex;
  width: var(--tutorial-step-size);
  height: var(--tutorial-step-size);
  align-items: center;
  justify-content: center;
  margin-bottom: 7px;
  border-radius: var(--radius-sm);
  background: var(--color-warning);
  color: var(--color-text);
  font: 750 12px/1 var(--font-mono);
}

.tutorial-route strong {
  font-family: var(--font-display);
  font-size: 17px;
}

.tutorial-route small {
  overflow-wrap: anywhere;
}

.tutorial-navigation {
  position: relative;
  z-index: 20;
  padding-top: 28px;
  padding-bottom: 8px;
}

.tutorial-navigation .toc-nav {
  margin-bottom: 0;
}

.tutorial-article {
  padding-top: 34px;
  padding-bottom: var(--section-space);
}

.tutorial-block {
  position: relative;
  padding-top: clamp(54px, 8vw, 86px);
  padding-bottom: clamp(54px, 8vw, 86px);
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--header-height) + 74px);
}

.tutorial-block:last-child {
  border-bottom: 0;
}

.tutorial-step-label {
  display: inline-flex;
  align-items: center;
  margin-bottom: 14px;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  background: var(--color-warning);
  color: var(--color-text);
  font: 720 12px/1.4 var(--font-mono);
}

.tutorial-block h2 {
  max-width: 680px;
}

.tutorial-block h3 {
  font-size: 21px;
}

.tutorial-block p,
.tutorial-block li {
  color: var(--color-text-muted);
}

.tutorial-block strong,
.tutorial-block h3 {
  color: var(--color-text);
}

.tutorial-check {
  margin-block: 30px;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--color-panel), var(--color-panel-soft));
  box-shadow: var(--shadow-soft);
}

.tutorial-check h3 {
  margin-bottom: 15px;
}

.tutorial-check ul,
.tutorial-check ol {
  margin-bottom: 0;
}

.tutorial-check li + li {
  margin-top: 8px;
}

.tutorial-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.tutorial-links .card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  color: var(--color-text);
  text-decoration: none;
}

.tutorial-links .card:hover {
  color: var(--color-text);
}

.tutorial-links .tag {
  width: fit-content;
  margin-bottom: 18px;
}

.tutorial-links h3 {
  margin-bottom: 9px;
}

.tutorial-links p {
  margin-bottom: 0;
}

.dl-fab svg {
  stroke-width: var(--tutorial-line-width);
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 820px) {
  .tutorial-route {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 480px) {
  .tutorial-route {
    grid-template-columns: 1fr;
  }

  .tutorial-route a {
    min-height: 0;
  }

  .tutorial-check {
    padding: 20px;
  }

  .tutorial-block {
    scroll-margin-top: calc(var(--header-height) + 92px);
  }
}