.tutorial-main {
  max-width: 1120px;
}
.tutorial-intro {
  max-width: 760px;
  padding: 76px 0 36px;
}
.tutorial-intro h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 18px 0;
}
.tutorial-intro p {
  line-height: 1.7;
}
.tutorial-lead {
  font-size: 1.1rem;
}
.capture-note {
  color: var(--muted, #596359);
  font-size: 0.9rem;
}
.tutorial-contents {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 24px 0 48px;
}
.tutorial-contents a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  border: 1px solid #d8dfd3;
  padding: 14px;
  border-radius: 3px;
  text-decoration: none;
  font-size: 0.9rem;
}
.tutorial-contents a:hover {
  background: #f4f6f5;
}
.tutorial-contents span {
  font-family: monospace;
  color: #56694c;
}
.tutorial-step {
  padding: 46px 0 58px;
  border-top: 1px solid #d8dfd3;
  scroll-margin-top: 100px;
}
.step-heading {
  max-width: 720px;
  margin-bottom: 30px;
}
.step-heading h2 {
  margin: 12px 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.015em;
}
.step-heading > p:last-child {
  line-height: 1.7;
}
.tutorial-grid {
  display: grid;
  grid-template-columns: minmax(0, 420px) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 70px);
  align-items: start;
}
.interface-figure {
  margin: 0;
  min-width: 0;
}
.interface-label {
  display: flex;
  justify-content: space-between;
  padding: 12px 14px;
  background: #292d29;
  color: #e5e9e2;
  border-radius: 3px 3px 0 0;
  font: 11px monospace;
}
.mockup {
  position: relative;
  overflow: hidden;
  background: #181818;
  border-radius: 0 0 3px 3px;
}
.mockup img {
  display: block;
  width: 100%;
  height: auto;
}
.interface-figure figcaption {
  margin-top: 12px;
  font-size: 0.8rem;
  color: #596359;
}
.hotspot {
  position: absolute;
  border: 2px solid #b8d9fa;
  background: transparent;
  padding: 0;
  border-radius: 4px;
  cursor: pointer;
}
.hotspot span {
  position: absolute;
  left: -9px;
  top: -11px;
  display: grid;
  place-items: center;
  height: 24px;
  width: 24px;
  border-radius: 3px;
  background: #b8d9fa;
  color: #17324d;
  border: 2px solid #181818;
  font: bold 12px system-ui;
}
.hotspot:hover,
.hotspot[aria-pressed="true"] {
  background: rgb(184 217 250 / 18%);
  box-shadow: 0 0 0 2px #181818;
}
.hotspot:focus-visible {
  outline: 3px solid white;
  outline-offset: 4px;
}
.control-explanations {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.control-explanations li {
  padding: 14px 18px;
  border: 1px solid transparent;
  border-radius: 3px;
  scroll-margin-top: 110px;
  transition: background 0.15s;
}
.control-explanations li.is-selected {
  border-color: #8aadc9;
  background: #f0f5fa;
}
.control-title {
  display: flex;
  align-items: center;
  gap: 12px;
}
.control-title h3 {
  font-size: 1.05rem;
  margin: 0;
}
.control-number {
  display: grid;
  place-items: center;
  height: 28px;
  width: 28px;
  flex: 0 0 auto;
  background: #eef2f5;
  border-radius: 3px;
  font: bold 13px monospace;
}
.control-explanations p {
  margin: 10px 0 0 40px;
  line-height: 1.7;
  font-size: 0.95rem;
}
.tutorial-end {
  padding: 35px 0 70px;
  border-top: 1px solid #d8dfd3;
}
@media (max-width: 800px) {
  .tutorial-contents {
    grid-template-columns: repeat(2, 1fr);
  }
  .tutorial-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }
  .interface-figure {
    width: 100%;
    max-width: 420px;
    margin-inline: auto;
  }
  .tutorial-intro {
    padding-top: 45px;
  }
  .control-explanations li {
    padding: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .control-explanations li {
    transition: none;
  }
}