/* ==========================================================================
   Flooring for Stairs — Royal 2026 Cinematic Page
   ========================================================================== */

.rhf-page--flooring-stairs {
  --rhf-page-accent: #feda6a;

  /* Carpet padding inspired luxury plum/slate palette */
  --rhf-fs-dark-a: #3c3640;
  --rhf-fs-dark-b: #221f26;
  --rhf-fs-slate-a: #494d5f;
  --rhf-fs-slate-b: #1d1e22;
  --rhf-fs-panel-a: #2b2d35;
  --rhf-fs-panel-b: #17181d;
  --rhf-fs-panel-c: #111216;

  --rhf-fs-warm-a: #3c3640;
  --rhf-fs-warm-b: #221f26;
  --rhf-fs-forest-a: #494d5f;
  --rhf-fs-forest-b: #1d1e22;

  --rhf-fs-ink: #1d1e22;
  --rhf-fs-muted: #4e5565;
  --rhf-fs-light-a: #f2f1ee;
  --rhf-fs-light-b: #d4d4dc;
  --rhf-fs-light-c: #fffdf8;
  --rhf-fs-navy: #17385f;
  --rhf-fs-gold-dark: #a57a1f;

  background: var(--rhf-fs-dark-b);
  color: rgba(255, 255, 255, 0.9);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.rhf-fs-icon {
  display: block;
  width: 2.15rem;
  height: 2.15rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 3.05;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Hero */
.rhf-page--flooring-stairs .rhf-fs-hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(680px, 92vh, 940px);
  overflow: hidden;
}

.rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.rhf-page--flooring-stairs .rhf-page-hero__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-hero__shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: var(--rhf-central-hero-shade) !important;
}

.rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-hero__inner {
  position: relative;
  z-index: 2;
  min-height: inherit;
  display: grid;
  grid-template-columns: minmax(0, 980px);
  align-items: end;
  justify-content: start;
  padding-block: clamp(8rem, 13vw, 11.5rem) clamp(5.5rem, 10vw, 8rem);
}

.rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-hero__copy {
  position: relative;
  z-index: 3;
  display: grid;
  justify-items: start;
  max-width: 980px;
}

.rhf-page--flooring-stairs .rhf-page-kicker,
.rhf-page--flooring-stairs .rhf-section-kicker {
  color: var(--rhf-page-accent);
  -webkit-text-fill-color: var(--rhf-page-accent);
  font-weight: 850;
  letter-spacing: 0.16em;
  text-shadow: none;
  opacity: 1;
}

.rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-kicker {
  margin: 0 0 1rem;
  font-size: clamp(0.72rem, 0.66rem + 0.22vw, 0.86rem);
  line-height: 1;
}

.rhf-page--flooring-stairs .rhf-fs-hero h1 {
  max-width: 12.6ch;
  margin: 0;
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  font-size: clamp(3rem, 7.3vw, 7.2rem);
  font-weight: 850;
  line-height: 0.9;
  letter-spacing: -0.07em;
  text-wrap: balance;
  text-shadow: none;
}

.rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: clamp(1.8rem, 3vw, 2.6rem);
}

/* Shared section layout */
.rhf-fs-intro,
.rhf-fs-story,
.rhf-fs-treads-section,
.rhf-fs-options-section,
.rhf-fs-timeline-section,
.rhf-fs-close {
  position: relative;
  overflow: clip;
  padding: clamp(4.75rem, 9vw, 9rem) 0;
}

.rhf-fs-intro,
.rhf-fs-treads-section,
.rhf-fs-close {
  background:
    radial-gradient(900px 460px at 8% 0%, rgba(255, 255, 255, 0.08), transparent 58%),
    radial-gradient(760px 360px at 100% 20%, rgba(254, 218, 106, 0.08), transparent 54%),
    linear-gradient(135deg, #3c3640 0%, #221f26 100%);
}

.rhf-fs-story,
.rhf-fs-options-section {
  background:
    radial-gradient(circle at 30% 18%, rgba(255, 255, 255, 0.16), transparent 42%),
    radial-gradient(760px 360px at 100% 20%, rgba(254, 218, 106, 0.10), transparent 54%),
    linear-gradient(180deg, #494d5f 0%, #1d1e22 100%);
}

.rhf-fs-timeline-section {
  color: var(--rhf-fs-ink);
  background:
    radial-gradient(680px 260px at 100% 0%, rgba(254, 218, 106, 0.16), transparent 58%),
    linear-gradient(135deg, #fffdf8 0%, #f2f1ee 44%, #d4d4dc 100%);
}

.rhf-fs-intro > .rhf-container,
.rhf-fs-story > .rhf-container,
.rhf-fs-treads-section > .rhf-container,
.rhf-fs-options-section > .rhf-container,
.rhf-fs-timeline-section > .rhf-container,
.rhf-fs-close > .rhf-container {
  position: relative;
  z-index: 1;
}

.rhf-fs-opener,
.rhf-fs-section-heading {
  max-width: 950px;
  margin: 0 auto clamp(2.4rem, 5vw, 4.5rem);
  text-align: center;
}

.rhf-fs-opener h2,
.rhf-fs-section-heading h2,
.rhf-fs-story__copy h2,
.rhf-fs-faq__intro h2,
.rhf-fs-final h2 {
  margin: 0;
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 5.6rem);
  font-weight: 820;
  line-height: 0.98;
  letter-spacing: -0.052em;
  text-shadow: none;
}

.rhf-fs-timeline-section h2,
.rhf-fs-timeline-section h3 {
  color: var(--rhf-fs-navy);
  -webkit-text-fill-color: var(--rhf-fs-navy);
}

.rhf-fs-timeline-section .rhf-section-kicker {
  color: var(--rhf-fs-gold-dark);
  -webkit-text-fill-color: var(--rhf-fs-gold-dark);
}

.rhf-fs-opener p:last-child,
.rhf-fs-section-heading p:last-child,
.rhf-fs-faq__intro p:last-child,
.rhf-fs-final p {
  max-width: 860px;
  margin: clamp(1rem, 1.8vw, 1.35rem) auto 0;
  color: rgba(255, 255, 255, 0.82);
  -webkit-text-fill-color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.02rem, 1.25vw, 1.18rem);
  font-weight: 500;
  line-height: 1.75;
}

/* Proof grid */
.rhf-fs-proof-grid,
.rhf-fs-option-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.4rem);
}

.rhf-fs-option-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rhf-fs-proof,
.rhf-fs-option-card {
  position: relative;
  min-height: 100%;
  padding: clamp(1.25rem, 2vw, 1.8rem);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 1.45rem;
  background: rgba(255, 255, 255, 0.075);
  box-shadow: 0 1.4rem 3.5rem rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px);
}

.rhf-fs-proof .rhf-fs-icon,
.rhf-fs-option-card .rhf-fs-icon {
  color: var(--rhf-page-accent);
  margin-bottom: 1.05rem;
}

.rhf-fs-proof h3,
.rhf-fs-option-card h3 {
  margin: 0;
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  font-size: clamp(1.1rem, 1.45vw, 1.38rem);
  font-weight: 780;
  line-height: 1.16;
  letter-spacing: -0.025em;
}

.rhf-fs-proof p,
.rhf-fs-option-card p {
  margin: 0.85rem 0 0;
  color: rgba(255, 255, 255, 0.76);
  -webkit-text-fill-color: rgba(255, 255, 255, 0.76);
  font-size: 0.98rem;
  line-height: 1.65;
}

/* Story video */
.rhf-fs-story__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.rhf-fs-story__copy p:not(.rhf-section-kicker) {
  margin: clamp(1rem, 1.7vw, 1.35rem) 0 0;
  color: rgba(255, 255, 255, 0.82);
  -webkit-text-fill-color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1rem, 1.18vw, 1.13rem);
  font-weight: 500;
  line-height: 1.72;
}

.rhf-fs-story__copy ul {
  display: grid;
  gap: 0.85rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.rhf-fs-story__copy li {
  position: relative;
  padding-left: 1.75rem;
  color: rgba(255, 255, 255, 0.86);
  -webkit-text-fill-color: rgba(255, 255, 255, 0.86);
  font-weight: 600;
  line-height: 1.55;
}

.rhf-fs-story__copy li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--rhf-page-accent);
  box-shadow: 0 0 0 0.35rem rgba(254, 218, 106, 0.14);
}

.rhf-fs-video-card {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: clamp(1.25rem, 2.2vw, 2rem);
  background: #111;
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.34);
}

.rhf-fs-video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.rhf-fs-video-card figcaption {
  margin: 0;
  padding: 0.9rem 1rem 1rem;
  color: rgba(255, 255, 255, 0.72);
  -webkit-text-fill-color: rgba(255, 255, 255, 0.72);
  background: rgba(0, 0, 0, 0.38);
  font-size: 0.86rem;
  line-height: 1.45;
}

/* Tread product cards */
.rhf-fs-tread-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.4rem);
}

.rhf-fs-tread-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 1.45rem;
  background:
    radial-gradient(540px 220px at 50% 0%, rgba(254, 218, 106, 0.10), transparent 68%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.105), rgba(255, 255, 255, 0.035));
  box-shadow: 0 1.4rem 3.5rem rgba(0, 0, 0, 0.20);
}

.rhf-fs-tread-card__media {
  display: grid;
  place-items: center;
  min-height: clamp(220px, 25vw, 330px);
  padding: clamp(1rem, 2vw, 1.8rem);
  background:
    radial-gradient(circle at 50% 45%, rgba(255, 255, 255, 0.13), transparent 62%),
    linear-gradient(145deg, #2b2d35 0%, #17181d 68%, #111216 100%);
}

.rhf-fs-picture {
  display: block;
  width: 100%;
}

.rhf-fs-tread-image {
  display: block;
  width: 100%;
  max-height: 300px;
  object-fit: contain;
  filter: drop-shadow(0 18px 28px rgba(0, 0, 0, 0.28));
}

.rhf-fs-tread-card__body {
  padding: clamp(1.15rem, 2.2vw, 1.7rem);
}

.rhf-fs-tread-card__body .rhf-fs-icon {
  color: var(--rhf-page-accent);
}

.rhf-fs-tread-card h3 {
  margin: 0.9rem 0 0;
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  font-size: clamp(1.1rem, 1.45vw, 1.38rem);
  font-weight: 780;
  line-height: 1.16;
  letter-spacing: -0.025em;
}

.rhf-fs-tread-card p {
  margin: 0.85rem 0 0;
  color: rgba(255, 255, 255, 0.76);
  -webkit-text-fill-color: rgba(255, 255, 255, 0.76);
  line-height: 1.65;
}

/* Timeline */
.rhf-fs-timeline-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.rhf-fs-timeline-layout .rhf-fs-section-heading {
  position: sticky;
  top: 7rem;
  margin: 0;
  text-align: left;
}

.rhf-fs-timeline-section .rhf-fs-section-heading p:last-child {
  color: var(--rhf-fs-muted);
  -webkit-text-fill-color: var(--rhf-fs-muted);
}

.rhf-fs-timeline {
  display: grid;
  gap: 1rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.rhf-fs-timeline li,
.rhf-fs-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: clamp(1.1rem, 1.8vw, 1.45rem);
  border: 1px solid rgba(23, 56, 95, 0.14);
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 1rem 3rem rgba(23, 56, 95, 0.08);
}

.rhf-fs-timeline li > span {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  background: var(--rhf-fs-navy);
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  font-weight: 850;
}

.rhf-fs-timeline h3,
.rhf-fs-note h3 {
  margin: 0;
  color: var(--rhf-fs-navy);
  -webkit-text-fill-color: var(--rhf-fs-navy);
  font-size: clamp(1.08rem, 1.35vw, 1.32rem);
  font-weight: 780;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.rhf-fs-timeline p,
.rhf-fs-note p:last-child {
  margin: 0.5rem 0 0;
  color: var(--rhf-fs-muted);
  -webkit-text-fill-color: var(--rhf-fs-muted);
  line-height: 1.62;
}

.rhf-fs-note {
  max-width: 980px;
  margin: clamp(2rem, 4vw, 3rem) auto 0;
  background: #ffffff;
}

.rhf-fs-note .rhf-fs-icon {
  color: var(--rhf-fs-gold-dark);
}

/* FAQ + final */
.rhf-fs-faq {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.rhf-fs-faq__intro {
  position: sticky;
  top: 7rem;
}

.rhf-fs-faq__items {
  display: grid;
  gap: 0.85rem;
}

.rhf-fs-faq details {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.075);
  box-shadow: 0 1rem 2.6rem rgba(0, 0, 0, 0.16);
}

.rhf-fs-faq summary {
  cursor: pointer;
  padding: 1.1rem 1.2rem;
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  font-weight: 780;
  line-height: 1.35;
}

.rhf-fs-faq details p {
  margin: 0;
  padding: 0 1.2rem 1.2rem;
  color: rgba(255, 255, 255, 0.76);
  -webkit-text-fill-color: rgba(255, 255, 255, 0.76);
  line-height: 1.65;
}

.rhf-fs-final {
  margin-top: clamp(3rem, 6vw, 5.5rem);
  padding: clamp(2rem, 4vw, 3.5rem);
  border-radius: clamp(1.35rem, 2.5vw, 2.1rem);
  text-align: center;
  background:
    radial-gradient(780px 280px at 100% 0%, rgba(255, 255, 255, 0.12), transparent 58%),
    radial-gradient(760px 300px at 0% 0%, rgba(254, 218, 106, 0.09), transparent 58%),
    linear-gradient(145deg, #2b2d35 0%, #17181d 68%, #111216 100%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.22);
}

.rhf-fs-final .rhf-page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
  margin-top: clamp(1.6rem, 3vw, 2.3rem);
}

/* Transparent cinematic header for Flooring for Stairs page */
body.page-template-page-flooring-stairs .site-header {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  border: 0 !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

body.page-template-page-flooring-stairs .site-header__bar {
  background: transparent !important;
  box-shadow: none !important;
  border: 0 !important;
}

body.page-template-page-flooring-stairs .site-header__rule {
  opacity: 0 !important;
}

body.page-template-page-flooring-stairs .site-header.is-scrolled,
body.page-template-page-flooring-stairs .site-header.site-header--scrolled,
body.page-template-page-flooring-stairs.site-menu-open .site-header {
  background: rgba(29, 30, 34, 0.82) !important;
  backdrop-filter: blur(18px) !important;
  -webkit-backdrop-filter: blur(18px) !important;
}

/* Responsive */
@media (max-width: 1100px) {
  .rhf-fs-proof-grid,
  .rhf-fs-tread-grid,
  .rhf-fs-option-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rhf-fs-story__grid,
  .rhf-fs-timeline-layout,
  .rhf-fs-faq {
    grid-template-columns: 1fr;
  }

  .rhf-fs-timeline-layout .rhf-fs-section-heading,
  .rhf-fs-faq__intro {
    position: static;
    text-align: center;
    margin: 0 auto;
  }
}

@media (max-width: 820px) {
  .rhf-page--flooring-stairs .rhf-fs-hero {
    min-height: clamp(620px, 88vh, 780px);
  }

  .rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-hero__inner {
    padding-block: 7.5rem 4.25rem;
  }

  .rhf-page--flooring-stairs .rhf-fs-hero h1 {
    max-width: 10.8ch;
    font-size: clamp(3rem, 15vw, 5.5rem);
  }

  .rhf-fs-proof-grid,
  .rhf-fs-tread-grid,
  .rhf-fs-option-grid {
    grid-template-columns: 1fr;
  }

  .rhf-fs-video {
    aspect-ratio: 4 / 5;
  }

  .rhf-fs-timeline li,
  .rhf-fs-note {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .rhf-fs-intro,
  .rhf-fs-story,
  .rhf-fs-treads-section,
  .rhf-fs-options-section,
  .rhf-fs-timeline-section,
  .rhf-fs-close {
    padding: 4rem 0;
  }

  .rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-hero__actions,
  .rhf-fs-final .rhf-page-hero__actions {
    width: 100%;
  }

  .rhf-page--flooring-stairs .rhf-fs-hero .rhf-page-hero__actions .button,
  .rhf-fs-final .rhf-page-hero__actions .button {
    width: 100%;
    justify-content: center;
  }
}