stack-chan

body {
  min-height: 100dvh;
  background: #111416;
}
.topbar strong {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.82rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tutorial-shell {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 54px 0 80px;
}
.tutorial-hero {
  max-width: 800px;
  margin-bottom: 34px;
}
.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.tutorial-hero h1 {
  margin: 0;
  font-size: clamp(1.75rem, 5vw, 3rem);
  letter-spacing: -0.04em;
}
.tutorial-hero > p:not(.eyebrow) {
  max-width: 620px;
  color: var(--muted);
  line-height: 1.8;
}
.tutorial-hero .button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 8px;
  text-decoration: none;
}
.lesson-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.lesson-nav a {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  color: var(--muted);
  font-size: 0.78rem;
  text-decoration: none;
}
.lesson-card {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 20px;
  margin-bottom: 12px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.lesson-time {
  color: var(--accent);
  font-size: 1.15rem;
  font-weight: 750;
}
.lesson-card h2,
.next-step h2,
.recovery-note h2 {
  margin: 0 0 12px;
  font-size: 1rem;
}
.lesson-card ol {
  margin: 0;
  padding-left: 1.4rem;
  color: #cbd2d8;
  line-height: 1.8;
}
.lesson-card li + li {
  margin-top: 4px;
}
.next-step,
.recovery-note {
  margin-top: 26px;
  padding: 22px 24px;
  border-left: 3px solid var(--accent);
  background: #171b1e;
}
.next-step p,
.recovery-note p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.7;
}
.recovery-note h2 {
  display: flex;
  align-items: center;
  gap: 8px;
}
@media (max-width: 600px) {
  .topbar .brand-link span {
    display: none;
  }
  .tutorial-shell {
    width: min(100% - 20px, 900px);
    padding-top: 34px;
  }
  .lesson-card {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 18px;
  }
}