.hb-rugby-guide {
  --hb-ink: #111111;
  --hb-copy: #333333;
  --hb-muted: #707070;
  --hb-line: #dddddd;
  --hb-soft: #f5f5f5;
  --hb-soft-2: #fafafa;
  --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-rugby-guide,
.hb-rugby-guide * {
  box-sizing: border-box;
}

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

.hb-rugby-guide h1 {
  width: 100%;
  max-width: none;
  margin: 0 0 24px;
  color: var(--hb-ink);
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.hb-rugby-guide h2 {
  margin: 68px 0 23px;
  padding-top: 19px;
  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;
  scroll-margin-top: 24px;
}

.hb-rugby-guide h3 {
  margin: 34px 0 12px;
  color: var(--hb-ink);
  font-size: 21px;
  line-height: 1.32;
}

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

.hb-rugby-guide a {
  color: var(--hb-ink);
  font-weight: 700;
  text-decoration-color: #8d8d8d;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

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

/* INTRO — full width to match TOC */
.hb-rugby-guide .hb-rugby-lede {
  width: 100%;
  max-width: none;
  margin: 0 0 30px;
  color: #252525;
  font-size: 20px;
  line-height: 1.64;
}

/* TOC */
.hb-rugby-guide .hb-rugby-toc {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  width: 100%;
  margin: 30px 0 42px;
  padding: 12px;
  border: 1px solid var(--hb-line);
  background: var(--hb-soft);
}

.hb-rugby-guide .hb-rugby-toc a {
  flex: 1 1 0;
  min-width: 0;
  padding: 10px 8px;
  border: 1px solid #c7c7c7;
  background: var(--hb-white);
  color: var(--hb-ink);
  font-size: 13px;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
}

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

/* FIRST READ */
.hb-rugby-guide .hb-balance-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: 100%;
  margin: 26px 0 40px;
  border-top: 1px solid var(--hb-line);
  border-left: 1px solid var(--hb-line);
}

.hb-rugby-guide .hb-balance-point {
  padding: 20px 22px;
  border-right: 1px solid var(--hb-line);
  border-bottom: 1px solid var(--hb-line);
}

.hb-rugby-guide .hb-balance-point strong {
  display: block;
  margin-bottom: 6px;
  color: var(--hb-ink);
  font-size: 15px;
}

.hb-rugby-guide .hb-balance-point span {
  display: block;
  color: var(--hb-muted);
  font-size: 14px;
  line-height: 1.55;
}

/* SIGNAL PAIR */
.hb-rugby-guide .hb-signal-map {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 30px 0 34px;
  border-top: 2px solid var(--hb-ink);
}

.hb-rugby-guide .hb-signal-map > div {
  padding: 23px 24px 21px;
  border-right: 1px solid var(--hb-line);
  border-bottom: 1px solid var(--hb-line);
  border-left: 1px solid var(--hb-line);
}

.hb-rugby-guide .hb-signal-map > div + div {
  border-left: 0;
}

.hb-rugby-guide .hb-signal-map dt {
  margin-bottom: 8px;
  color: var(--hb-ink);
  font-size: 16px;
  font-weight: 800;
}

.hb-rugby-guide .hb-signal-map dd {
  margin: 0;
  color: var(--hb-muted);
  font-size: 15px;
  line-height: 1.62;
}

/* CALLOUT */
.hb-rugby-guide .hb-editorial-note {
  margin: 28px 0 34px;
  padding: 22px 24px 21px;
  border-left: 4px solid var(--hb-ink);
  background: var(--hb-soft);
}

.hb-rugby-guide .hb-editorial-note strong {
  display: block;
  margin-bottom: 7px;
  color: var(--hb-ink);
}

.hb-rugby-guide .hb-editorial-note p:last-child {
  margin-bottom: 0;
}

/* WAIST COMPARISON */
.hb-rugby-guide .hb-waist-read {
  margin: 28px 0 35px;
  border-top: 1px solid var(--hb-line);
}

.hb-rugby-guide .hb-waist-row {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--hb-line);
}

.hb-rugby-guide .hb-waist-row strong {
  color: var(--hb-ink);
}

.hb-rugby-guide .hb-waist-row p {
  margin: 0;
}

/* PRODUCT SECTION */
.hb-rugby-guide .hb-product-intro {
  max-width: 900px;
  margin: 30px 0 22px;
}

.hb-rugby-guide .hb-product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 28px 0 42px;
}

.hb-rugby-guide .hb-product-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--hb-line);
  background: var(--hb-white);
  transition: transform .35s ease, box-shadow .35s ease;
}

.hb-rugby-guide .hb-product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(0,0,0,.07);
}

.hb-rugby-guide .hb-product-visual {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1.08;
  overflow: hidden;
  background: #f1f1f1;
  text-decoration: none;
}

.hb-rugby-guide .hb-product-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 16px;
  object-fit: contain;
  background: #f1f1f1;
  transition: opacity .35s ease, transform .45s ease;
}

.hb-rugby-guide .hb-product-visual .hb-primary {
  opacity: 1;
}

.hb-rugby-guide .hb-product-visual .hb-secondary {
  opacity: 0;
}

.hb-rugby-guide .hb-product-card:hover .hb-primary {
  opacity: 0;
}

.hb-rugby-guide .hb-product-card:hover .hb-secondary {
  opacity: 1;
}

.hb-rugby-guide .hb-product-card:hover .hb-product-visual img {
  transform: scale(1.018);
}

.hb-rugby-guide .hb-product-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 22px 22px 24px;
}

.hb-rugby-guide .hb-product-kicker {
  margin-bottom: 7px;
  color: var(--hb-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hb-rugby-guide .hb-product-copy h3 {
  margin: 0 0 11px;
  font-size: 20px;
}

.hb-rugby-guide .hb-product-copy p {
  margin-bottom: 18px;
  color: #4b4b4b;
  font-size: 15px;
  line-height: 1.65;
}

.hb-rugby-guide .hb-button {
  display: inline-block;
  align-self: flex-start;
  margin-top: auto;
  padding: 11px 17px;
  border: 1px solid var(--hb-ink);
  background: var(--hb-ink);
  color: var(--hb-white);
  font-size: 14px;
  line-height: 1.3;
  text-decoration: none;
}

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

/* TWO CORRECTIONS */
.hb-rugby-guide .hb-fix-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin: 30px 0 36px;
}

.hb-rugby-guide .hb-fix {
  padding-top: 20px;
  border-top: 2px solid var(--hb-ink);
}

.hb-rugby-guide .hb-fix span {
  display: block;
  margin-bottom: 7px;
  color: var(--hb-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hb-rugby-guide .hb-fix h3 {
  margin: 0 0 12px;
}

.hb-rugby-guide .hb-fix p:last-child {
  margin-bottom: 0;
}

/* ONE VARIABLE METHOD */
.hb-rugby-guide .hb-one-variable {
  margin: 30px 0 35px;
  padding: 24px 26px;
  border: 1px solid var(--hb-line);
  background: var(--hb-soft-2);
}

.hb-rugby-guide .hb-one-variable strong {
  display: block;
  margin-bottom: 12px;
  color: var(--hb-ink);
}

.hb-rugby-guide .hb-one-variable ol {
  margin: 0;
  padding-left: 22px;
}

.hb-rugby-guide .hb-one-variable li {
  margin-bottom: 8px;
}

.hb-rugby-guide .hb-one-variable li:last-child {
  margin-bottom: 0;
}

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

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

.hb-rugby-guide .hb-faq details div {
  padding: 0 20px 20px;
}

.hb-rugby-guide .hb-faq details p:last-child {
  margin-bottom: 0;
}

/* FINAL CTA */
.hb-rugby-guide .hb-final {
  margin-top: 64px;
  padding: clamp(28px, 5vw, 50px);
  border: 2px solid var(--hb-ink);
  background: var(--hb-soft);
}

.hb-rugby-guide .hb-final-title {
  margin-bottom: 14px;
  color: var(--hb-ink);
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hb-rugby-guide .hb-final p {
  max-width: 940px;
}

.hb-rugby-guide .hb-final .hb-button {
  margin-top: 5px;
}

/* RESPONSIVE */
@media (max-width: 940px) {
  .hb-rugby-guide .hb-rugby-toc {
    flex-wrap: wrap;
  }

  .hb-rugby-guide .hb-rugby-toc a {
    flex: 1 1 calc(33.333% - 8px);
  }

  .hb-rugby-guide .hb-product-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hb-rugby-guide .hb-product-card:last-child {
    grid-column: 1 / -1;
  }

  .hb-rugby-guide .hb-product-card:last-child .hb-product-visual {
    aspect-ratio: 1.6 / 1;
  }
}

@media (max-width: 760px) {
  .hb-rugby-guide {
    font-size: 16px;
    line-height: 1.68;
  }

  .hb-rugby-guide h1 {
    font-size: clamp(34px, 10vw, 45px);
  }

  .hb-rugby-guide h2 {
    margin-top: 54px;
  }

  .hb-rugby-guide .hb-rugby-lede {
    font-size: 18px;
  }

  .hb-rugby-guide .hb-rugby-toc a {
    flex: 1 1 calc(50% - 8px);
    white-space: normal;
  }

  .hb-rugby-guide .hb-balance-rail,
  .hb-rugby-guide .hb-signal-map,
  .hb-rugby-guide .hb-fix-pair,
  .hb-rugby-guide .hb-product-grid {
    grid-template-columns: 1fr;
  }

  .hb-rugby-guide .hb-signal-map > div + div {
    border-left: 1px solid var(--hb-line);
  }

  .hb-rugby-guide .hb-product-card:last-child {
    grid-column: auto;
  }

  .hb-rugby-guide .hb-product-card:last-child .hb-product-visual,
  .hb-rugby-guide .hb-product-visual {
    aspect-ratio: 1 / 1.05;
  }

  .hb-rugby-guide .hb-waist-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

@media (max-width: 520px) {
  .hb-rugby-guide .hb-rugby-toc a {
    flex: 1 1 100%;
  }

  .hb-rugby-guide .hb-product-visual img {
    padding: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hb-rugby-guide .hb-product-card,
  .hb-rugby-guide .hb-product-visual img {
    transition: none;
  }
}