.royal-stairs-installation-section,
.royal-stairs-installation-section *,
.royal-stairs-installation-section *::before,
.royal-stairs-installation-section *::after {
  box-sizing: border-box;
}

.royal-stairs-installation-section {
  --rsi-navy: #0f213f;
  --rsi-muted: #5b6e82;
  --rsi-gold: #d6b25e;
  --rsi-gold-soft: #fff1bf;
  --rsi-gold-deep: #8a6217;
  --rsi-line: rgba(15, 33, 63, 0.11);
  --rsi-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.985) 0%, rgba(247, 250, 252, 0.97) 100%);
  --rsi-shadow-xl: 0 30px 70px rgba(15, 23, 42, 0.12);
  --rsi-shadow-lg: 0 18px 42px rgba(15, 23, 42, 0.10);

  position: relative;
  overflow: visible;
  padding: clamp(4rem, 6.2vw, 5.8rem) 1rem;
  background:
    radial-gradient(900px 300px at 0% 0%, rgba(127, 166, 225, 0.10), transparent 46%),
    radial-gradient(760px 240px at 100% 0%, rgba(214, 178, 94, 0.08), transparent 42%),
    linear-gradient(180deg, #f5f8fb 0%, #ffffff 52%, #f7fafc 100%);
}

.royal-stairs-installation {
  position: relative;
  z-index: 1;
  width: min(1140px, 100%);
  margin: 0 auto;
  padding: clamp(1.3rem, 2.8vw, 2.3rem);
  border-radius: 34px;
  border: 1px solid var(--rsi-line);
  background: var(--rsi-surface);
  box-shadow: var(--rsi-shadow-xl), inset 0 1px 0 rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.royal-stairs-installation::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.92),
    rgba(214,178,94,0.22),
    rgba(127,166,225,0.12),
    rgba(255,255,255,0.90)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

.royal-stairs-installation__hero,
.royal-stairs-installation__layout {
  width: min(1000px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.royal-stairs-installation__hero {
  text-align: center;
  margin-bottom: 2.3rem;
}

.royal-stairs-installation__eyebrow,
.royal-stairs-installation__section-kicker {
  margin: 0;
  font-family: 'Roboto', 'Inter', system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 800;
}

.royal-stairs-installation__eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  font-size: 0.75rem;
  color: #ffffff;
  background: linear-gradient(145deg, #1a2748 0%, #2e4575 54%, #0a2342 100%);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 10px 22px rgba(10, 35, 66, 0.18), inset 0 1px 0 rgba(255,255,255,0.08);
}

.royal-stairs-installation__title {
  margin: 1rem 0 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  line-height: 1.05;
}

.royal-stairs-installation__title-logo {
  width: 52px;
  height: auto;
  display: inline-block;
  filter: drop-shadow(0 8px 18px rgba(10, 35, 66, 0.14)) drop-shadow(0 4px 10px rgba(214, 178, 94, 0.16));
}

.royal-stairs-installation__title span {
  display: inline-block;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2.1rem, 4.3vw, 3.35rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.04;
  background: linear-gradient(180deg, var(--rsi-gold-soft) 0%, var(--rsi-gold) 42%, var(--rsi-gold-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.royal-stairs-installation__lede,
.royal-stairs-installation__text,
.royal-stairs-installation__service-note,
.royal-stairs-installation__card-text {
  margin: 0;
  font-family: 'Roboto', 'Inter', system-ui, sans-serif;
  color: var(--rsi-muted);
}

.royal-stairs-installation__lede {
  max-width: 900px;
  margin: 1rem auto 0;
  font-size: 1.04rem;
  line-height: 1.84;
}

.royal-stairs-installation__point-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  margin: 1.2rem auto 0;
  padding: 0;
  max-width: 920px;
}

.royal-stairs-installation__point-list li {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0.58rem 0.95rem;
  border-radius: 999px;
  font-family: 'Roboto', 'Inter', system-ui, sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--rsi-navy);
  background: linear-gradient(180deg, #ffffff 0%, #f7f9fb 100%);
  border: 1px solid rgba(15, 33, 63, 0.10);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.05), inset 0 1px 0 rgba(255,255,255,0.96);
}

.royal-stairs-installation__layout {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  gap: 1.2rem;
  padding: clamp(1.3rem, 2.8vw, 1.9rem);
  border-radius: 28px;
  border: 1px solid var(--rsi-line);
  background: linear-gradient(180deg, rgba(255,255,255,0.99) 0%, rgba(248,250,252,0.97) 100%);
  box-shadow: var(--rsi-shadow-lg), inset 0 1px 0 rgba(255,255,255,0.98);
}

.royal-stairs-installation__layout::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.4rem;
  right: 1.4rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(214,178,94,0.94), transparent);
}

.royal-stairs-installation__section-kicker {
  font-size: 0.72rem;
  color: var(--rsi-gold-deep);
}

.royal-stairs-installation__section-title {
  margin: 0;
  font-family: 'Playfair Display', Georgia, serif;
  color: var(--rsi-navy);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: clamp(1.45rem, 2.5vw, 1.98rem);
  line-height: 1.18;
}

.royal-stairs-installation__text {
  font-size: 0.98rem;
  line-height: 1.78;
}

.royal-stairs-installation__text + .royal-stairs-installation__text {
  margin-top: 0.9rem;
}

.royal-stairs-installation__aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
}

.royal-stairs-installation__service-note {
  padding: 1rem 1.05rem;
  border-radius: 20px;
  border: 1px solid rgba(15, 33, 63, 0.10);
  background: linear-gradient(180deg, #ffffff 0%, #f5f8fb 100%);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.06), inset 0 1px 0 rgba(255,255,255,0.96);
  font-size: 0.98rem;
  line-height: 1.78;
}

.royal-stairs-installation__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.royal-stairs-installation__button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.4rem;
  border-radius: 999px;
  text-decoration: none !important;
  font-family: 'Roboto', 'Inter', system-ui, sans-serif;
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.royal-stairs-installation__button--primary {
  color: #ffffff !important;
  background: linear-gradient(145deg, #1a2748 0%, #2d4373 56%, #0a2342 100%);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 12px 24px rgba(10, 35, 66, 0.18), inset 0 1px 0 rgba(255,255,255,0.08);
}

.royal-stairs-installation__button:hover,
.royal-stairs-installation__button:focus-visible {
  transform: translateY(-2px);
}

.royal-stairs-installation__button--primary:hover,
.royal-stairs-installation__button--primary:focus-visible {
  background: linear-gradient(145deg, #22345c 0%, #355289 58%, #0b1a34 100%);
  border-color: rgba(214,178,94,0.40);
}

.royal-stairs-installation__options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.2rem;
}

.royal-stairs-installation__card {
  position: relative;
  overflow: hidden;
  padding: 1.2rem 1.1rem 1.15rem;
  border-radius: 24px;
  border: 1px solid rgba(15, 33, 63, 0.10);
  background: linear-gradient(180deg, #ffffff 0%, #f7f9fb 100%);
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.06), inset 0 1px 0 rgba(255,255,255,0.96);
}

.royal-stairs-installation__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.2rem;
  right: 1.2rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(214,178,94,0.88), transparent);
}

.royal-stairs-installation__card-eyebrow {
  margin: 0 0 0.55rem;
  font-family: 'Roboto', 'Inter', system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--rsi-gold-deep);
}

.royal-stairs-installation__card-title {
  margin: 0;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.16rem;
  line-height: 1.2;
  color: var(--rsi-navy);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.royal-stairs-installation__card-text {
  margin-top: 0.55rem;
  font-size: 0.97rem;
  line-height: 1.75;
}

@media (max-width: 980px) {
  .royal-stairs-installation__layout {
    grid-template-columns: 1fr;
  }

  .royal-stairs-installation__options {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .royal-stairs-installation-section {
    padding: 3.6rem 0.9rem;
  }

  .royal-stairs-installation {
    padding: 1.1rem;
    border-radius: 24px;
  }

  .royal-stairs-installation__title {
    gap: 0.7rem;
  }

  .royal-stairs-installation__title-logo {
    width: 42px;
  }

  .royal-stairs-installation__title span {
    font-size: 1.95rem;
  }

  .royal-stairs-installation__lede,
  .royal-stairs-installation__text,
  .royal-stairs-installation__service-note,
  .royal-stairs-installation__card-text {
    font-size: 0.96rem;
  }

  .royal-stairs-installation__point-list {
    justify-content: flex-start;
  }

  .royal-stairs-installation__button {
    width: 100%;
  }

  .royal-stairs-installation__layout {
    border-radius: 22px;
  }

  .royal-stairs-installation__card {
    border-radius: 22px;
  }
}

@media (max-width: 560px) {
  .royal-stairs-installation__eyebrow {
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    padding: 0.42rem 0.74rem;
  }

  .royal-stairs-installation__title {
    flex-direction: column;
  }

  .royal-stairs-installation__title-logo {
    width: 36px;
  }

  .royal-stairs-installation__title span {
    font-size: 1.7rem;
  }

  .royal-stairs-installation__section-title,
  .royal-stairs-installation__card-title {
    font-size: 1.08rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .royal-stairs-installation__button {
    transition: none;
  }

  .royal-stairs-installation__button:hover,
  .royal-stairs-installation__button:focus-visible {
    transform: none;
  }
}