.rf-page {
  background: #0a0a0a;
  color: var(--white);
  --green: #3bb506;
  --green-dark: #2f9305;
  --lime: var(--green);
  --rf-accent: #3bb506;
  --rf-accent-deep: #2f9305;
  --rf-panel: #161616;
  --rf-line: #333333;
}

.rf-page .announce-bar {
  background: #292929;
  border-bottom-color: rgba(59,181,6,0.45);
  color: #edf1e9;
}

.rf-page .nav-cta,
.rf-page .btn-primary {
  background: var(--rf-accent);
  border-color: var(--rf-accent);
  color: #0c100b;
}

.rf-page .wa-float {
  background: #25d366;
  color: #ffffff;
}

.rf-page .wa-float:hover {
  background: #1fbd5a;
}

.rf-page main {
  overflow: hidden;
}

.rf-container {
  margin: 0 auto;
  max-width: 1180px;
  padding-inline: 24px;
}

.rf-kicker {
  color: var(--rf-accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.rf-hero {
  background: linear-gradient(145deg, #121212, #080808 72%);
  border-bottom: 1px solid var(--gray-80);
  padding: 70px 0 62px;
}

.rf-breadcrumbs {
  color: var(--gray-50);
  font-size: 0.78rem;
  margin-bottom: 34px;
}

.rf-breadcrumbs a {
  color: inherit;
}

.rf-hero__grid {
  align-items: center;
  display: grid;
  gap: clamp(38px, 6vw, 78px);
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.92fr);
}

.rf-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.7rem, 6.2vw, 5.4rem);
  letter-spacing: -0.04em;
  line-height: 0.94;
  margin: 15px 0 24px;
  max-width: 760px;
  text-transform: uppercase;
}

.rf-hero__lead {
  color: var(--gray-20);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
  line-height: 1.7;
  margin: 0 0 30px;
  max-width: 660px;
}

.rf-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.rf-proof-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 28px;
}

.rf-proof-row span {
  border: 1px solid var(--gray-70);
  border-radius: 999px;
  color: var(--gray-30);
  font-size: 0.75rem;
  padding: 8px 12px;
}

.rf-hero__media {
  background: var(--gray-90);
  border: 1px solid var(--gray-70);
  border-radius: 24px;
  overflow: hidden;
  position: relative;
}

.rf-hero__media img {
  aspect-ratio: 4 / 3;
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.rf-hero__label {
  background: rgba(0, 0, 0, 0.82);
  bottom: 16px;
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 800;
  left: 16px;
  letter-spacing: 0.1em;
  padding: 9px 11px;
  position: absolute;
  text-transform: uppercase;
}

.rf-answer {
  background: #141714;
  border-bottom: 1px solid var(--rf-line);
  border-top: 1px solid var(--rf-line);
  color: var(--white);
  padding: 34px 0;
}

.rf-answer__grid {
  align-items: start;
  display: grid;
  gap: 28px;
  grid-template-columns: 180px 1fr;
}

.rf-answer h2 {
  color: var(--rf-accent);
  font-family: var(--font-head);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  margin: 0;
  text-transform: uppercase;
}

.rf-answer p {
  color: #d8ddd5;
  font-size: clamp(1rem, 1.65vw, 1.18rem);
  font-weight: 650;
  line-height: 1.62;
  margin: 0;
}

.rf-section {
  padding: clamp(68px, 9vw, 112px) 0;
}

.rf-section--soft {
  background: #121212;
}

.rf-section--light {
  background: #151515;
  color: var(--white);
}

.rf-heading {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  margin-bottom: 46px;
}

.rf-heading h2 {
  font-family: var(--font-head);
  font-size: clamp(2.15rem, 5vw, 4.2rem);
  letter-spacing: -0.035em;
  line-height: 0.98;
  margin: 10px 0 0;
  text-transform: uppercase;
}

.rf-heading p {
  align-self: end;
  color: var(--gray-40);
  line-height: 1.72;
  margin: 0;
}

.rf-section--light .rf-heading p {
  color: #b8beb6;
}

.rf-product-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rf-product-card {
  background: #161616;
  border: 1px solid var(--gray-70);
  border-radius: 22px;
  overflow: hidden;
}

.rf-product-card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.rf-product-card__media img,
.rf-evidence-card img,
.rf-install-media img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.rf-product-card__body {
  padding: clamp(25px, 4vw, 40px);
}

.rf-product-card__number {
  color: var(--rf-accent);
  font-family: var(--font-head);
  font-size: 0.92rem;
  letter-spacing: 0.12em;
}

.rf-product-card h3 {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3.5vw, 2.65rem);
  line-height: 1;
  margin: 12px 0 14px;
  text-transform: uppercase;
}

.rf-product-card p {
  color: var(--gray-30);
  line-height: 1.7;
}

.rf-spec-list {
  border-top: 1px solid var(--gray-70);
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.rf-spec-list li {
  border-bottom: 1px solid var(--gray-80);
  display: grid;
  font-size: 0.88rem;
  gap: 14px;
  grid-template-columns: 42% 1fr;
  padding: 12px 0;
}

.rf-spec-list span:first-child {
  color: var(--gray-50);
}

.rf-inline-link {
  color: var(--rf-accent);
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  margin-top: 24px;
  text-transform: uppercase;
}

.rf-table-wrap {
  border: 1px solid var(--gray-70);
  border-radius: 16px;
  overflow-x: auto;
}

.rf-table {
  border-collapse: collapse;
  min-width: 760px;
  width: 100%;
}

.rf-table th,
.rf-table td {
  border-bottom: 1px solid var(--gray-80);
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
}

.rf-table th {
  background: #181818;
  color: var(--white);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rf-table td {
  color: var(--gray-30);
  font-size: 0.88rem;
  line-height: 1.55;
}

.rf-table tr:last-child td {
  border-bottom: 0;
}

.rf-evidence-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.rf-evidence-card {
  background: #181818;
  border: 1px solid var(--gray-70);
  border-radius: 18px;
  grid-column: span 4;
  overflow: hidden;
}

.rf-evidence-card--wide {
  grid-column: span 8;
}

.rf-evidence-card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.rf-evidence-card--wide .rf-evidence-card__media {
  aspect-ratio: 8 / 3;
}

.rf-evidence-card__body {
  padding: 20px;
}

.rf-evidence-card h3 {
  font-size: 1rem;
  margin: 0 0 8px;
}

.rf-evidence-card p {
  color: var(--gray-40);
  font-size: 0.86rem;
  line-height: 1.6;
  margin: 0;
}

.rf-install-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.rf-install-media {
  border-radius: 18px;
  min-height: 470px;
  overflow: hidden;
}

.rf-install-copy {
  display: grid;
  gap: 14px;
}

.rf-step {
  background: #1b1b1b;
  border: 1px solid #363636;
  border-radius: 14px;
  padding: 22px;
}

.rf-step strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 7px;
}

.rf-step p {
  color: #b8beb6;
  font-size: 0.9rem;
  line-height: 1.62;
  margin: 0;
}

.rf-callout {
  background: #0d0d0d;
  border: 1px solid var(--gray-70);
  border-left: 4px solid var(--rf-accent);
  border-radius: 0 14px 14px 0;
  color: var(--gray-20);
  line-height: 1.7;
  margin-top: 28px;
  padding: 22px 24px;
}

.rf-faq {
  display: grid;
  gap: 12px;
  margin-top: 42px;
}

.rf-faq details {
  background: #161616;
  border: 1px solid var(--gray-70);
  border-radius: 13px;
  padding: 0 22px;
}

.rf-faq summary {
  cursor: pointer;
  font-weight: 750;
  list-style: none;
  padding: 20px 32px 20px 0;
  position: relative;
}

.rf-faq summary::after {
  color: var(--rf-accent);
  content: "+";
  font-size: 1.4rem;
  position: absolute;
  right: 0;
  top: 14px;
}

.rf-faq details[open] summary::after {
  content: "−";
}

.rf-faq p {
  color: var(--gray-30);
  line-height: 1.7;
  margin: 0;
  padding: 0 0 20px;
}

.rf-cta {
  background: #151515;
  border-bottom: 1px solid var(--rf-line);
  border-top: 1px solid var(--rf-accent-deep);
  color: var(--white);
  padding: clamp(56px, 8vw, 88px) 0;
}

.rf-cta__grid {
  align-items: center;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) auto;
}

.rf-cta h2 {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 4.6rem);
  letter-spacing: -0.04em;
  line-height: 0.96;
  margin: 0 0 13px;
  text-transform: uppercase;
}

.rf-cta p {
  color: #c3c9c0;
  line-height: 1.65;
  margin: 0;
  max-width: 660px;
}

.rf-cta .btn-primary {
  background: var(--rf-accent);
  border-color: var(--rf-accent);
  color: #0c100b;
}

.rf-cta .btn-outline {
  border-color: #687065 !important;
  color: #f3f5f1 !important;
}

.rf-verified {
  color: var(--gray-50);
  font-size: 0.75rem;
  margin-top: 32px;
}

/* Article */
.rf-article-hero {
  background: #111;
  border-bottom: 1px solid var(--gray-80);
  padding: 58px 0 42px;
}

.rf-article-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin: 18px 0 24px;
  max-width: 1050px;
  text-transform: uppercase;
}

.rf-article-deck {
  color: var(--gray-30);
  font-size: clamp(1rem, 1.5vw, 1.14rem);
  line-height: 1.7;
  max-width: 820px;
}

.rf-article-meta {
  color: var(--gray-50);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.78rem;
  gap: 12px 22px;
  margin-top: 28px;
}

.rf-article-cover {
  background: #111;
  padding: 0 0 52px;
}

.rf-article-cover img {
  aspect-ratio: 1200 / 630;
  border-radius: 0 0 22px 22px;
  display: block;
  object-fit: cover;
  width: 100%;
}

.rf-article {
  margin: 0 auto;
  max-width: 880px;
  padding: 18px 24px 88px;
}

.rf-article h2 {
  border-top: 3px solid var(--rf-accent-deep);
  font-family: var(--font-head);
  font-size: clamp(1.65rem, 4vw, 2.6rem);
  line-height: 1.08;
  margin: 58px 0 20px;
  padding-top: 15px;
  text-transform: uppercase;
}

.rf-article h3 {
  font-size: 1.22rem;
  margin: 34px 0 12px;
}

.rf-article p,
.rf-article li {
  color: var(--gray-20);
  line-height: 1.78;
}

.rf-article p {
  margin: 0 0 22px;
}

.rf-article ul,
.rf-article ol {
  margin: 0 0 26px;
  padding-left: 22px;
}

.rf-article li {
  margin-bottom: 8px;
}

.rf-article a {
  color: var(--rf-accent);
  text-underline-offset: 3px;
}

.rf-article figure {
  margin: 34px 0;
}

.rf-article figure img {
  border-radius: 16px;
  display: block;
  height: auto;
  width: 100%;
}

.rf-article figcaption {
  color: var(--gray-50);
  font-size: 0.8rem;
  line-height: 1.55;
  margin-top: 9px;
}

.rf-article .rf-table-wrap {
  margin: 26px 0 32px;
}

.rf-short-answer {
  background: #151515;
  border: 1px solid var(--gray-70);
  border-left: 4px solid var(--rf-accent);
  border-radius: 0 16px 16px 0;
  margin: 22px 0 34px;
  padding: 24px 26px;
}

.rf-short-answer strong {
  color: var(--rf-accent);
  display: block;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  margin-bottom: 9px;
  text-transform: uppercase;
}

.rf-short-answer p {
  font-size: 1.04rem;
  font-weight: 620;
  margin: 0;
}

.rf-article-cta {
  background: #171717;
  border: 1px solid var(--rf-accent-deep);
  border-radius: 18px;
  color: var(--white);
  margin: 36px 0;
  padding: 28px;
}

.rf-article-cta h2,
.rf-article-cta h3 {
  border: 0;
  color: var(--white);
  margin: 0 0 10px;
  padding: 0;
}

.rf-article-cta p {
  color: #c3c9c0;
  margin-bottom: 20px;
}

.rf-article-cta .btn {
  background: var(--rf-accent);
  border-color: var(--rf-accent);
  color: #0c100b;
}

.rf-article .rf-faq {
  margin-top: 28px;
}

@media (max-width: 880px) {
  .rf-hero__grid,
  .rf-heading,
  .rf-install-grid,
  .rf-cta__grid {
    grid-template-columns: 1fr;
  }

  .rf-hero__media {
    max-width: 680px;
  }

  .rf-product-grid {
    grid-template-columns: 1fr;
  }

  .rf-evidence-card,
  .rf-evidence-card--wide {
    grid-column: span 6;
  }

  .rf-cta__grid .rf-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .rf-container {
    padding-inline: 18px;
  }

  .rf-hero {
    padding: 42px 0 46px;
  }

  .rf-breadcrumbs {
    margin-bottom: 24px;
  }

  .rf-hero__grid {
    gap: 34px;
  }

  .rf-hero h1,
  .rf-article-hero h1 {
    font-size: clamp(2.35rem, 13vw, 3.5rem);
  }

  .rf-answer__grid {
    gap: 12px;
    grid-template-columns: 1fr;
  }

  .rf-heading {
    gap: 16px;
  }

  .rf-spec-list li {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .rf-evidence-card,
  .rf-evidence-card--wide {
    grid-column: span 12;
  }

  .rf-evidence-card--wide .rf-evidence-card__media {
    aspect-ratio: 4 / 3;
  }

  .rf-install-media {
    min-height: 330px;
  }

  .rf-article-hero {
    padding: 42px 0 32px;
  }

  .rf-article-cover {
    padding-bottom: 30px;
  }

  .rf-article-cover img {
    border-radius: 0 0 14px 14px;
  }

  .rf-article {
    padding-inline: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rf-page * {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}