/* ============================================================
   MECHANICAL REBAR SPLICE — Product Page
   Inherits: style.css variables
   ============================================================ */

/* ── 1. HERO ─────────────────────────────────────────────── */
.rs-hero {
  position: relative;
  min-height: 580px;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
}

/* .rs-hero-overlay defined globally in style.css */

.rs-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.rs-hero-eyebrow {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--red);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.rs-hero-eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--red);
  flex-shrink: 0;
}

.rs-hero-title {
  font-size: clamp(2.2rem, 3.8vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -.025em;
  line-height: 1.05;
  color: #fff;
  margin: 0 0 20px;
  text-transform: uppercase;
}

.rs-hero-title em {
  font-style: normal;
  color: #fff;
}

.rs-hero-desc {
  font-size: .9rem;
  color: rgba(255,255,255,.72);
  max-width: 480px;
  line-height: 1.8;
  margin-bottom: 32px;
}

.rs-hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.rs-hero-right {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.rs-hero-img-wrap {
  width: 100%;
  max-width: 460px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 32px 80px rgba(0,0,0,.4);
  background: rgba(255,255,255,.06);
}

.rs-hero-img-wrap img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.rs-hero-strip {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--red), var(--text-700));
  z-index: 3;
}

/* ── 2. OVERVIEW ─────────────────────────────────────────── */
.rs-overview {
  padding: 80px 0;
  background: #fff;
  /* border-top: 3px solid var(--red); */
}

.rs-overview-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}

.rs-overview-text .label { margin-bottom: 14px; }

.rs-overview-text .h-section { font-size: clamp(1.6rem, 2.5vw, 2.2rem); margin: 0 0 20px; }

.rs-overview-body {
  font-size: .95rem;
  line-height: 1.85;
  color: var(--text-500);
  margin: 0 0 16px;
}

.rs-standards {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.rs-standard-badge {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--text-900);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  background: var(--bg-soft);
  text-transform: uppercase;
}

/* Spec panel */
.rs-spec-panel {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.rs-spec-metrics {
  background: var(--text-700);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.rs-spec-metric {
  padding: 24px 16px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,.07);
}

.rs-spec-metric:last-child { border-right: none; }

.rs-spec-metric-num {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: #fff;
  line-height: 1;
  margin-bottom: 6px;
}

.rs-spec-metric-num span {
  font-size: .65em;
  font-weight: 600;
  opacity: .7;
}

.rs-spec-metric-label {
  font-size: .65rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgb(206 51 45);
  font-weight: 600;
}

.rs-spec-table { display: flex; flex-direction: column; }

.rs-spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border-light);
  gap: 12px;
  transition: background var(--transition);
}

.rs-spec-row:last-child { border-bottom: none; }
.rs-spec-row-alt { background: var(--bg-soft); }
.rs-spec-row:hover { background: var(--bg-muted); }

.rs-spec-row-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-500);
  white-space: nowrap;
}

.rs-spec-row-value {
  font-size: .85rem;
  font-weight: 700;
  color: var(--text-900);
  text-align: right;
}

/* ── 3. MANUFACTURING PROCESS ────────────────────────────── */
.rs-mfg {
  padding: 80px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border-light);
}

.rs-mfg-header {
  margin-bottom: 56px;
}

.rs-mfg-header .label { margin-bottom: 16px; }

.rs-mfg-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-light);
}

.rs-mfg-header-row .h-section { font-size: clamp(1.6rem, 2.5vw, 2.2rem); margin: 0; }

.rs-mfg-header-note {
  font-size: .88rem;
  line-height: 1.8;
  color: var(--text-500);
  max-width: 360px;
  margin: 0;
  flex-shrink: 0;
}

.rs-mfg-steps {
  display: flex;
  flex-direction: column;
}

.rs-mfg-step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 0 32px;
}

.rs-mfg-step-aside {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 5px;
}

.rs-mfg-step-num {
  font-size: .80rem;
  font-weight: 800;
  letter-spacing: .05em;
  color: #fff;
  background: var(--red);
  width: 35px;
  height: 35px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.rs-mfg-step-line {
  width: 1px;
  flex: 1;
  background: var(--border-light);
  margin: 10px 0 0;
  min-height: 32px;
}

.rs-mfg-step:last-child .rs-mfg-step-line { display: none; }

.rs-mfg-step-body {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: start;
  padding: 0 0 56px;
}

.rs-mfg-step:last-child .rs-mfg-step-body { padding-bottom: 0; }

.rs-mfg-step-content .h-subsection {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  margin: 10px 0 14px;
  text-transform: uppercase;
  font-weight: 800;
}

.rs-mfg-step-desc {
  font-size: .875rem;
  line-height: 1.75;
  color: var(--text-500);
  margin: 0;
}

.rs-mfg-step-img-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.rs-mfg-step-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}

.rs-mfg-step-img-wrap:hover img { transform: scale(1.04); }

/* ── 4. KEY ADVANTAGES ───────────────────────────────────── */
.rs-advantages {
  padding: 80px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border-light);
}

.rs-advantages-wrap {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 80px;
  align-items: start;
}

.rs-advantages-left {
  position: sticky;
  top: 100px;
}

.rs-advantages-left .label { margin-bottom: 12px; }

.rs-advantages-left .h-section { font-size: clamp(1.6rem, 2.5vw, 2.4rem); margin: 0 0 20px; }

.rs-advantages-desc {
  font-size: .9rem;
  line-height: 1.8;
  color: var(--text-500);
  margin: 0 0 32px;
}

.rs-adv-grid {
  display: flex;
  flex-direction: column;
}

.rs-adv-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
}

.rs-adv-card:last-child { border-bottom: none; }

.rs-adv-num {
  flex-shrink: 0;
  background: var(--blue);
  color: #fff;
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .06em;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.rs-adv-text {
  font-size: .95rem;
  font-weight: 600;
  line-height: 1.65;
  color: var(--text-900);
  margin: 0;
}

/* ── 5. COUPLER TYPES ────────────────────────────────────── */
.rs-types {
  padding: 80px 0;
  background: #fff;
  border-top: 1px solid var(--border-light);
}

.rs-types-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border-light);
}

.rs-types-header .h-section { font-size: clamp(1.6rem, 2.5vw, 2.2rem); margin: 8px 0 0; }

.rs-types-note {
  font-size: .88rem;
  line-height: 1.75;
  color: var(--text-500);
  max-width: 340px;
  margin: 0;
}

.rs-types-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.rs-type-card {
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.rs-type-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--text-700));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}

.rs-type-card:hover::after { transform: scaleX(1); }

.rs-type-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-color: rgba(200,16,46,.18);
}

.rs-type-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background:var(--bg-soft);
}

.rs-type-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  padding: 0;
  display: block;
  transition: transform .5s ease;
}



.rs-type-card:hover .rs-type-img img { transform: scale(1.06); }

.rs-type-body {
  padding: 20px 18px 22px;
  background: var(--bg-muted);
}

.rs-type-num {
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 6px;
  display: block;
}

.rs-type-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text-900);
  margin: 0;
  line-height: 1.25;
}

/* Clickable card extras */
.rs-type-card--clickable { cursor: pointer; }
.rs-type-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: #fff;
  background: var(--blue);
  border: 1px solid var(--blue);
  border-radius: 100px;
  padding: 3px 9px;
  transition: background .2s, color .2s, border-color .2s;
}
.rs-type-card--clickable:hover .rs-type-more {
  background: #fff;
  color: var(--blue);
  border-color: transparent;
}
.rs-type-card--clickable:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

/* ── COUPLER MODAL ───────────────────────────────────────── */
.rs-modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.rs-modal-backdrop.active { display: flex; }
.rs-modal {
  background: #fff;
  border-radius: 12px;
  max-width: 780px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 24px 64px rgba(0,0,0,.2);
  animation: modalIn .22s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.rs-modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-700);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
.rs-modal-close:hover { background: var(--red); color: #fff; border-color: var(--red); }
.rs-modal-inner {
  display: grid;
  grid-template-columns: 260px 1fr;
}
.rs-modal-img-wrap {
  background: var(--bg-soft);
  border-radius: 12px 0 0 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  /*padding: 32px 24px;*/
}
.rs-modal-img-wrap img { width: 100%; max-height: 220px; object-fit: cover; }
.rs-modal-content { padding: 36px 32px 32px; }
.rs-modal-num {
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue);
  display: block;
  margin-bottom: 6px;
}
.rs-modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-900);
  margin: 0 0 14px;
  line-height: 1.2;
}
.rs-modal-desc {
  font-size: .9rem;
  color: var(--text-500);
  line-height: 1.75;
  margin: 0 0 22px;
}
.rs-modal-uses-label {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 10px;
}
.rs-modal-uses-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.rs-modal-uses-list li {
  font-size: .875rem;
  color: var(--text-700);
  padding-left: 18px;
  position: relative;
}
.rs-modal-uses-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}
@media (max-width: 600px) {
  .rs-modal-inner { grid-template-columns: 1fr; }
  .rs-modal-img-wrap { border-radius: 12px 12px 0 0; padding: 24px; }
  .rs-modal-content { padding: 24px 20px 28px; }
}

/* ── 6. STANDARDS COMPLIANCE ─────────────────────────────── */
.rs-compliance {
  padding: 80px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border-light);
}

.rs-compliance-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.rs-compliance-header .h-section { font-size: clamp(1.6rem, 2.5vw, 2.2rem); margin: 8px 0 0; }

.rs-compliance-header p {
  font-size: .9rem;
  line-height: 1.8;
  color: var(--text-500);
  margin: 0;
}

.rs-compliance-grid {
  overflow: hidden;
}

.rs-compliance-card {
  display: grid;
  grid-template-columns: 140px 160px 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 28px 32px;
  transition: filter .15s;
}

.rs-compliance-card:nth-child(odd)  { background: var(--bg-muted); }
.rs-compliance-card:nth-child(even) { background: var(--bg-soft); }
.rs-compliance-card:hover { filter: brightness(.97); }

.rs-compliance-card-header { display: contents; }

.rs-compliance-code {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--red);
  line-height: 1;
}

.rs-compliance-badge {
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--text-900);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  white-space: nowrap;
  width: fit-content;
}

.rs-compliance-body { display: contents; }

.rs-compliance-req { display: none; }

.rs-compliance-text {
  font-size: .88rem;
  line-height: 1.7;
  color: var(--text-500);
  margin: 0;
}

.rs-compliance-result {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text-900);
  white-space: nowrap;
  text-align: right;
}

.rs-compliance-result span { color: var(--red); }

/* ── 7. QUALITY ASSURANCE / TESTING ─────────────────────── */
.rs-testing {
  padding: 80px 0;
  background: #fff;
  border-top: 1px solid var(--border-light);
}

.rs-testing-header {
  display: flex;
  align-items: flex-end;
  gap: 48px;
  margin-bottom: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border-light);
}

.rs-testing-header-left { flex: 0 0 auto; }

.rs-testing-header .h-section { font-size: clamp(1.6rem, 2.5vw, 2.2rem); margin: 8px 0 0; }

.rs-testing-desc {
  flex: 1;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--text-500);
  margin: 0 0 0 auto;
  max-width: 520px;
  /* text-align: right; */
}

.rs-testing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 48px;
}

.rs-test-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px 22px;
  background: var(--bg-muted);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.rs-test-row:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.rs-test-row-num {
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
}

.rs-test-row-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text-900);
  line-height: 1.25;
}

.rs-test-row-status {
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
  background: var(--blue);
  border-radius: 100px;
  padding: 3px 10px;
  width: fit-content;
  margin-top: 6px;
}

.rs-test-card-check svg { width: 11px; height: 11px; }

/* Labs */
.rs-labs-title {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-500);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.rs-labs-title::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--red);
}

.rs-labs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.rs-lab-card {
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  display: grid;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: 14px;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.rs-lab-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border);
  transform: translateY(-2px);
}

.rs-lab-num {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--red);
  line-height: 1;
  letter-spacing: -.02em;
}

.rs-lab-name {
  font-size: .88rem;
  font-weight: 700;
  color: var(--text-900);
  margin-bottom: 3px;
  line-height: 1.3;
}

.rs-lab-loc {
  font-size: .72rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-500);
  font-weight: 500;
}

.rs-lab-badge {
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #fff;
  background: var(--text-900);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  white-space: nowrap;
  transition: background var(--transition);
}

.rs-lab-card:hover .rs-lab-badge { background: var(--red); }

/* ── 8. CTA ──────────────────────────────────────────────── */
.rs-cta {
  padding: 80px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border-light);
}

.rs-cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 56px;
}

.rs-cta-text .h-section {
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
  color: var(--text-700);
  margin: 8px 0 10px;
}

.rs-cta-desc {
  font-size: .9rem;
  line-height: 1.75;
  color: var(--text-500);
  margin: 0;
  max-width: 540px;
}

.rs-cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
  flex-shrink: 0;
}


.btn-outline-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-size: .92rem;
  font-weight: 600;
  letter-spacing: .02em;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  border: 2px solid rgba(255,255,255,.3);
  color: rgba(255,255,255,.75);
  background: transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-outline-white:hover {
  border-color: rgba(255,255,255,.6);
  color: #fff;
  background: rgba(255,255,255,.06);
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 991px) {
  .rs-testing-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  .rs-testing-desc { max-width: 100%; }
}

@media (max-width: 1024px) {
  .rs-types-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .rs-hero { padding: 120px 0 64px; min-height: auto; }
  .rs-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .rs-hero-right { justify-content: flex-start; }
  .rs-hero-img-wrap { max-width: 100%; }

  .rs-overview-grid { grid-template-columns: 1fr; gap: 40px; }
  .rs-overview { padding: 60px 0; }

  .rs-mfg { padding: 60px 0; }
  .rs-mfg-header-row { flex-direction: column; align-items: flex-start; gap: 16px; }
  .rs-mfg-header-note { max-width: 100%; }
  .rs-mfg-step-body { grid-template-columns: 1fr; gap: 24px; }
  .rs-mfg-step-img-wrap { max-width: 280px; }

  .rs-advantages { padding: 60px 0; }
  .rs-advantages-wrap { grid-template-columns: 1fr; gap: 40px; }
  .rs-advantages-left { position: static; }

  .rs-types { padding: 60px 0; }
  .rs-types-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  .rs-types-note { max-width: 100%; }

  .rs-compliance { padding: 60px 0; }
  .rs-compliance-header { grid-template-columns: 1fr; gap: 20px; }
  .rs-compliance-card { grid-template-columns: 120px 1fr; grid-template-rows: auto auto; gap: 8px 0; }
  .rs-compliance-text { grid-column: 1 / -1; }
  .rs-compliance-result { text-align: left; }

  .rs-testing { padding: 60px 0; }
  .rs-testing-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  .rs-testing-grid { grid-template-columns: repeat(2, 1fr); }
  .rs-labs-grid { grid-template-columns: 1fr; }

  .rs-testing { padding: 60px 0; }
  .rs-testing-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  .rs-labs-grid { grid-template-columns: 1fr; }

  .rs-cta { padding: 60px 0; }
  .rs-cta-inner { grid-template-columns: 1fr; gap: 32px; }
  .rs-cta-actions { align-items: flex-start; flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 768px) {
  .rs-hero { padding: 100px 0 56px; }
  .rs-hero-title { font-size: clamp(2rem, 9vw, 2.8rem); }

  .rs-spec-metrics { grid-template-columns: 1fr 1fr; }

  .rs-adv-card:last-child { border-bottom: none; }

  .rs-testing-grid { grid-template-columns: 1fr; }
  .rs-lab-card { grid-template-columns: 36px 1fr; grid-template-rows: auto auto; }
  .rs-lab-badge { grid-column: 2; align-self: start; width: fit-content; }

  .rs-compliance-card { grid-template-columns: 1fr; }
  .rs-compliance-result { text-align: left; }

  .rs-types-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
}

@media (max-width: 480px) {
  .rs-spec-metrics { grid-template-columns: 1fr; }
  .rs-spec-metric { border-right: none; border-bottom: 1px solid rgba(255,255,255,.07); }
  .rs-spec-metric:last-child { border-bottom: none; }
  .rs-types-grid { grid-template-columns: 1fr; }
  .rs-cta-actions { flex-direction: column; align-items: stretch; }
  .rs-mfg-step { grid-template-columns: 44px 1fr; gap: 0 20px; }
}