:root {
  --tutorial-hero-min-height: 520px;
  --tutorial-hero-padding-top: clamp(68px, 10vw, 118px);
  --tutorial-hero-padding-bottom: clamp(64px, 9vw, 104px);
  --tutorial-copy-width: 760px;
  --tutorial-wide-copy: 920px;
  --tutorial-panel-gap: 28px;
  --tutorial-step-gap: clamp(56px, 9vw, 96px);
  --tutorial-step-padding: clamp(24px, 5vw, 48px);
  --tutorial-head-gap: 18px;
  --tutorial-number-size: 52px;
  --tutorial-number-size-small: 44px;
  --tutorial-path-gap: 8px;
  --tutorial-card-gap: 16px;
  --tutorial-list-gap: 18px;
  --tutorial-border-width: 1px;
  --tutorial-rule-width: 3px;
  --tutorial-inline-gap: 5px;
  --tutorial-offset: 86px;
  --tutorial-mobile-offset: 72px;
}

.tutorial-hero {
  position: relative;
  display: flex;
  min-height: var(--tutorial-hero-min-height);
  align-items: center;
  background:
    radial-gradient(circle at 12% 18%, var(--color-aurora-pink), var(--color-pink-clear) 42%),
    radial-gradient(circle at 72% 12%, var(--color-aurora-blue), var(--color-blue-clear) 46%),
    radial-gradient(circle at 88% 74%, var(--color-aurora-teal), var(--color-teal-clear) 40%),
    linear-gradient(to bottom, var(--color-panel), var(--color-bg));
}

.tutorial-hero-inner {
  padding-top: var(--tutorial-hero-padding-top);
  padding-bottom: var(--tutorial-hero-padding-bottom);
}

.tutorial-hero h1,
.tutorial-hero .lead {
  max-width: var(--tutorial-copy-width);
}

.tutorial-hero .lead {
  margin-bottom: var(--tutorial-panel-gap);
}

.tutorial-chips {
  margin-top: var(--tutorial-panel-gap);
}

.tutorial-intro {
  padding-top: var(--section-space);
  padding-bottom: 0;
}

.prep-panel {
  margin-top: var(--tutorial-panel-gap);
}

.inline-link {
  display: inline;
  margin-inline: var(--tutorial-inline-gap);
}

.tutorial-jump {
  margin-top: var(--tutorial-panel-gap);
}

.tutorial-steps {
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}

.guide-flow {
  display: grid;
  gap: var(--tutorial-step-gap);
}

.guide-step {
  scroll-margin-top: var(--tutorial-offset);
  overflow: clip;
  border: var(--tutorial-border-width) solid var(--color-edge-pink);
  border-radius: var(--radius-large);
  background: var(--color-tint-pink);
  box-shadow: var(--shadow-soft);
  padding: var(--tutorial-step-padding);
}

.guide-step:nth-child(2) {
  border-color: var(--color-edge-blue);
  background: var(--color-tint-blue);
}

.guide-step:nth-child(3) {
  border-color: var(--color-edge-orange);
  background: var(--color-tint-orange);
}

.guide-step:nth-child(4) {
  border-color: var(--color-edge-blue);
  background: var(--color-tint-blue);
}

.guide-step-head {
  display: flex;
  align-items: flex-start;
  gap: var(--tutorial-head-gap);
  margin-bottom: var(--tutorial-panel-gap);
}

.step-number {
  display: grid;
  width: var(--tutorial-number-size);
  height: var(--tutorial-number-size);
  flex: 0 0 var(--tutorial-number-size);
  place-items: center;
  border: var(--tutorial-border-width) solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  color: var(--color-accent-dark);
  box-shadow: var(--shadow-soft);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
}

.guide-step-head .kicker {
  margin-bottom: var(--tutorial-path-gap);
}

.guide-step-head h2 {
  margin-bottom: 0;
}

.guide-copy {
  max-width: var(--tutorial-wide-copy);
  margin-inline: auto;
}

.guide-copy > p {
  color: var(--color-muted);
}

.guide-copy .callout {
  margin-top: var(--tutorial-panel-gap);
}

.action-path {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tutorial-path-gap);
  margin-top: var(--tutorial-panel-gap);
  margin-bottom: var(--tutorial-panel-gap);
}

.action-path span {
  display: inline-flex;
  align-items: center;
  border: var(--tutorial-border-width) solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text);
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.action-path span:not(:last-child)::after {
  margin-left: var(--tutorial-path-gap);
  color: var(--color-accent-dark);
  content: "→";
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--tutorial-card-gap);
  margin-top: var(--tutorial-panel-gap);
  margin-bottom: var(--tutorial-panel-gap);
}

.mode-card {
  border: var(--tutorial-border-width) solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
  padding: 20px;
}

.mode-card h3 {
  font-size: 20px;
}

.mode-card p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.tutorial-window {
  max-width: var(--tutorial-copy-width);
  margin-top: var(--tutorial-panel-gap);
  margin-bottom: var(--tutorial-panel-gap);
  margin-inline: auto;
}

.verification-list {
  display: grid;
  gap: var(--tutorial-list-gap);
  margin-top: var(--tutorial-panel-gap);
  margin-bottom: var(--tutorial-panel-gap);
  padding-left: 0;
  list-style: none;
  counter-reset: verification;
}

.verification-list li {
  position: relative;
  border-left: var(--tutorial-rule-width) solid var(--color-accent);
  border-radius: var(--radius-small);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
  padding: 18px 20px;
  counter-increment: verification;
}

.verification-list li::before {
  display: inline-flex;
  margin-right: var(--tutorial-path-gap);
  color: var(--color-accent-dark);
  content: counter(verification, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.verification-list p {
  margin-top: var(--tutorial-path-gap);
  margin-bottom: 0;
  color: var(--color-muted);
}

.trouble-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--tutorial-card-gap);
}

.trouble-list .card p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.next-reading {
  display: grid;
  gap: var(--tutorial-panel-gap);
  border-color: var(--color-edge-orange);
  background: var(--color-tint-orange);
}

.next-reading p {
  max-width: var(--tutorial-copy-width);
  margin-bottom: 0;
  color: var(--color-muted);
}

@media (max-width: 760px) {
  :root {
    --tutorial-hero-min-height: 460px;
  }

  .mode-grid,
  .trouble-list {
    grid-template-columns: 1fr;
  }

  .guide-step {
    scroll-margin-top: var(--tutorial-mobile-offset);
  }

  .action-path {
    align-items: flex-start;
    flex-direction: column;
  }

  .action-path span {
    max-width: 100%;
  }

  .action-path span:not(:last-child)::after {
    content: "↓";
  }
}

@media (max-width: 480px) {
  .guide-step-head {
    gap: 14px;
  }

  .step-number {
    width: var(--tutorial-number-size-small);
    height: var(--tutorial-number-size-small);
    flex-basis: var(--tutorial-number-size-small);
  }

  .guide-step-head .kicker {
    font-size: 11px;
  }

  .interface-row {
    align-items: flex-start;
    flex-direction: column;
  }
}