.hb-guide {
  --hb-ink: #111111;
  --hb-copy: #333333;
  --hb-muted: #6f6f6f;
  --hb-line: #dedede;
  --hb-soft: #f5f5f5;
  --hb-white: #ffffff;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  color: var(--hb-copy);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.72;
}

.hb-guide, .hb-guide * {
  box-sizing: border-box;
}

.hb-guide h1, .hb-guide h2, .hb-guide h3, .hb-guide p, .hb-guide ul, .hb-guide figure {
  margin-top: 0;
}

.hb-guide h1 {
  max-width: 980px;
  margin-bottom: 24px;
  color: var(--hb-ink);
  font-size: clamp(36px, 4vw, 54px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.hb-guide h2 {
  margin: 68px 0 22px;
  padding-top: 20px;
  border-top: 2px solid var(--hb-ink);
  color: var(--hb-ink);
  font-size: clamp(27px, 3vw, 36px);
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.hb-guide h3 {
  margin: 32px 0 12px;
  color: var(--hb-ink);
  font-size: 21px;
  line-height: 1.3;
}

.hb-guide p {
  margin-bottom: 18px;
}

.hb-guide a {
  color: var(--hb-ink);
  font-weight: 700;
  text-decoration-color: #8a8a8a;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.hb-guide a:hover {
  text-decoration-color: var(--hb-ink);
}

.hb-guide ul {
  margin-bottom: 24px;
  padding-left: 24px;
}

.hb-guide li {
  margin-bottom: 10px;
}

.hb-guide .hb-lede {
  max-width: 920px;
  margin-bottom: 30px;
  color: #262626;
  font-size: 20px;
  line-height: 1.65;
}

.hb-guide .hb-toc {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  margin: 30px 0 42px;
  padding: 12px;
  border: 1px solid var(--hb-line);
  background: var(--hb-soft);
}

.hb-guide .hb-toc a {
  display: flex;
  flex: 1 1 0;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 9px 4px;
  border: 1px solid #bdbdbd;
  background: var(--hb-white);
  font-size: 12.5px;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
}

.hb-guide .hb-toc a:hover {
  border-color: var(--hb-ink);
  background: var(--hb-ink);
  color: var(--hb-white);
}

.hb-guide .hb-priority-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 28px 0;
  border-top: 1px solid var(--hb-ink);
  border-bottom: 1px solid var(--hb-ink);
}

.hb-guide .hb-priority-strip div {
  padding: 18px 20px;
  border-right: 1px solid var(--hb-line);
}

.hb-guide .hb-priority-strip div:last-child {
  border-right: 0;
}

.hb-guide .hb-priority-strip strong {
  display: block;
  margin-bottom: 5px;
  color: var(--hb-ink);
  font-size: 14px;
  text-transform: uppercase;
}

.hb-guide .hb-priority-strip span {
  color: var(--hb-muted);
  font-size: 14px;
  line-height: 1.5;
}

.hb-guide .hb-connection-map {
  display: grid;
  grid-template-columns: minmax(170px, .72fr) minmax(0, 2.28fr);
  margin: 30px 0;
  border: 1px solid var(--hb-ink);
  background: var(--hb-white);
}

.hb-guide .hb-map-anchor {
  display: grid;
  place-content: center;
  min-height: 226px;
  padding: 26px;
  background: var(--hb-ink);
  color: var(--hb-white);
  text-align: center;
}

.hb-guide .hb-map-anchor strong {
  font-size: 24px;
  line-height: 1.1;
}

.hb-guide .hb-map-anchor small {
  margin-top: 8px;
  color: #d8d8d8;
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hb-guide .hb-map-routes {
  display: grid;
}

.hb-guide .hb-map-route {
  display: grid;
  grid-template-columns: minmax(95px, .7fr) minmax(0, 1.3fr);
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--hb-line);
}

.hb-guide .hb-map-route:last-child {
  border-bottom: 0;
}

.hb-guide .hb-map-route strong {
  color: var(--hb-ink);
  font-size: 14px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.hb-guide .hb-map-route span {
  color: var(--hb-muted);
  font-size: 15px;
  line-height: 1.5;
}

.hb-guide .hb-note {
  margin: 28px 0;
  padding: 22px 24px;
  border-left: 5px solid var(--hb-ink);
  background: var(--hb-soft);
}

.hb-guide .hb-note strong {
  color: var(--hb-ink);
}

.hb-guide .hb-swap-card {
  display: grid;
  grid-template-columns: minmax(280px, .9fr) minmax(300px, 1.1fr);
  margin: 34px 0;
  overflow: hidden;
  border: 1px solid var(--hb-line);
  background: var(--hb-white);
}

.hb-guide .hb-swap-link {
  position: relative;
  display: block;
  min-height: 470px;
  overflow: hidden;
  background: #eeeeee;
}

.hb-guide .hb-swap-link img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity .35s ease, transform .45s ease;
}

.hb-guide .hb-img-primary {
  opacity: 1;
}

.hb-guide .hb-img-hover {
  opacity: 0;
}

.hb-guide .hb-swap-link:hover .hb-img-primary, .hb-guide .hb-swap-link:focus-visible .hb-img-primary {
  opacity: 0;
}

.hb-guide .hb-swap-link:hover .hb-img-hover, .hb-guide .hb-swap-link:focus-visible .hb-img-hover {
  opacity: 1;
}

.hb-guide .hb-swap-link:hover img, .hb-guide .hb-swap-link:focus-visible img {
  transform: scale(1.015);
}

.hb-guide .hb-swap-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(26px, 4vw, 48px);
}

.hb-guide .hb-eyebrow {
  margin-bottom: 10px;
  color: var(--hb-muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.hb-guide .hb-swap-copy h3 {
  margin-top: 0;
}

.hb-guide .hb-button {
  align-self: flex-start;
  display: inline-block;
  margin-top: 8px;
  padding: 12px 17px;
  border: 1px solid var(--hb-ink);
  background: var(--hb-ink);
  color: var(--hb-white);
  font-size: 14px;
  text-decoration: none;
}

.hb-guide .hb-button:hover {
  background: var(--hb-white);
  color: var(--hb-ink);
}

.hb-guide .hb-look-grid {
  margin: 28px 0;
  border: 1px solid var(--hb-ink);
}

.hb-guide .hb-look {
  display: grid;
  grid-template-columns: minmax(155px, .65fr) minmax(300px, 1.5fr) minmax(250px, 1fr);
  align-items: center;
  gap: 18px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--hb-line);
}

.hb-guide .hb-look:last-child {
  border-bottom: 0;
}

.hb-guide .hb-look strong {
  color: var(--hb-ink);
  font-size: 14px;
  line-height: 1.35;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.hb-guide .hb-look > span {
  color: var(--hb-muted);
  font-size: 14px;
  line-height: 1.5;
}

.hb-guide .hb-sequence {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--hb-ink);
  font-size: 14px;
  font-weight: 700;
}

.hb-guide .hb-sequence i {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 1px solid #333333;
  border-radius: 50%;
}

.hb-guide .hb-black {
  background: #111111;
}

.hb-guide .hb-charcoal {
  background: #4d4d4d;
}

.hb-guide .hb-grey {
  background: #ababab;
}

.hb-guide .hb-white {
  background: #ffffff;
}

.hb-guide .hb-olive {
  background: #626451;
}

.hb-guide .hb-tan {
  background: #b8a27f;
}

.hb-guide .hb-blue {
  background: #7894aa;
}

.hb-guide .hb-palette-board {
  margin: 28px 0;
  border: 1px solid var(--hb-ink);
  background: var(--hb-white);
}

.hb-guide .hb-palette-row {
  display: grid;
  grid-template-columns: 165px 150px minmax(0, 1fr);
  align-items: center;
  gap: 20px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--hb-line);
}

.hb-guide .hb-palette-row:last-child {
  border-bottom: 0;
}

.hb-guide .hb-palette-row > strong {
  color: var(--hb-ink);
  font-size: 14px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.hb-guide .hb-palette-row > span {
  color: var(--hb-muted);
  font-size: 14px;
  line-height: 1.5;
}

.hb-guide .hb-swatches {
  display: flex;
  gap: 7px;
}

.hb-guide .hb-swatch {
  width: 34px;
  height: 34px;
  border: 1px solid #777777;
  border-radius: 50%;
}

.hb-guide .hb-table-wrap {
  margin: 26px 0;
  overflow-x: auto;
}

.hb-guide table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 15px;
}

.hb-guide th, .hb-guide td {
  padding: 14px 16px;
  border: 1px solid var(--hb-line);
  text-align: left;
  vertical-align: top;
}

.hb-guide th {
  background: var(--hb-ink);
  color: var(--hb-white);
}

.hb-guide .hb-check-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 28px 0;
  border-top: 1px solid var(--hb-ink);
}

.hb-guide .hb-check {
  padding: 18px 18px 18px 0;
  border-bottom: 1px solid var(--hb-line);
}

.hb-guide .hb-check:nth-child(3n+2), .hb-guide .hb-check:nth-child(3n+3) {
  padding-left: 18px;
}

.hb-guide .hb-check strong {
  display: block;
  margin-bottom: 6px;
  color: var(--hb-ink);
  font-size: 14px;
  text-transform: uppercase;
}

.hb-guide .hb-check span {
  display: block;
  color: var(--hb-muted);
  font-size: 14px;
  line-height: 1.5;
}

.hb-guide .hb-faq details {
  margin-bottom: 12px;
  border: 1px solid var(--hb-line);
  background: var(--hb-white);
}

.hb-guide .hb-faq summary {
  padding: 18px 20px;
  color: var(--hb-ink);
  font-weight: 700;
  cursor: pointer;
}

.hb-guide .hb-faq details p {
  margin-bottom: 0;
  padding: 0 20px 20px;
}

.hb-guide .hb-final {
  margin-top: 64px;
  padding: clamp(28px, 5vw, 52px);
  border: 2px solid var(--hb-ink);
  background: var(--hb-soft);
}

.hb-guide .hb-final h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

@media (max-width: 780px) {
  .hb-guide {
    font-size: 16px;
    line-height: 1.68;
  }
  .hb-guide h2 {
    margin-top: 54px;
  }
  .hb-guide .hb-toc {
    flex-wrap: wrap;
  }
  .hb-guide .hb-toc a {
    flex: 1 1 calc(50% - 6px);
    white-space: normal;
  }
  .hb-guide .hb-connection-map,
  .hb-guide .hb-priority-strip,
  .hb-guide .hb-palette-row,
  .hb-guide .hb-look,
  .hb-guide .hb-check-grid,
  .hb-guide .hb-swap-card {
    grid-template-columns: 1fr;
  }
  .hb-guide .hb-map-anchor {
    min-height: 150px;
  }
  .hb-guide .hb-map-route {
    grid-template-columns: 100px minmax(0, 1fr);
  }
  .hb-guide .hb-priority-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--hb-line);
  }
  .hb-guide .hb-priority-strip div:last-child {
    border-bottom: 0;
  }
  .hb-guide .hb-palette-row,
  .hb-guide .hb-look {
    gap: 10px;
  }
  .hb-guide .hb-check,
  .hb-guide .hb-check:nth-child(3n+2),
  .hb-guide .hb-check:nth-child(3n+3) {
    padding: 16px 0;
  }
  .hb-guide .hb-swap-link {
    min-height: 390px;
  }
}

@media (max-width: 480px) {
  .hb-guide .hb-toc a {
    flex-basis: 100%;
  }
}

@media (hover: none) {
  .hb-guide .hb-img-hover {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hb-guide .hb-swap-link img {
    transition: none;
  }
}