/* ============================================
   RESET
   ============================================ */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* ============================================
   TOKENS
   ============================================ */

:root {
  --ink: #2b2a28;
  --ink-soft: #5c5955;
  --paper: #fff;
  --paper-warm: #fbf2ec;
  --panel-dark: #2b2a28;
  --brand: #2b2a28;
  --accent: #e7c3ab;
  --accent-soft: #f2ded1;
  --accent-strong: #d7af93;
  --rule: rgba(43, 42, 40, 0.14);
  --rule-soft: rgba(43, 42, 40, 0.08);

  --font-display: "Bodoni Moda", serif;
  --font-body: "Inter", sans-serif;

  --edge: 3px;
  --shell-width: 1180px;
}

.rb-shell {
  width: min(var(--shell-width), 90%);
  margin: 0 auto;
}

/* ============================================
   TYPE
   ============================================ */

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

h1 { font-size: clamp(2.6rem, 4.6vw, 4.4rem); font-weight: 500; max-width: 900px; }
h2 { font-size: clamp(2.1rem, 3.6vw, 3.4rem); }
h3 { font-size: 1.2rem; }

p { color: var(--ink-soft); margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

.rb-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 1.5rem;
}

.rb-kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--ink);
  display: inline-block;
}

.rb-kicker--on-dark { color: rgba(255,255,255,0.85); }
.rb-kicker--on-dark::before { background: var(--accent); }
.rb-kicker--ink { color: var(--ink); }
.rb-kicker--ink::before { background: var(--ink); }

.rb-brace {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--accent);
}

.rb-eyebrow-mini {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 1.5rem 0 0.9rem;
}

.rb-pull-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.5rem;
  line-height: 1.4;
  color: var(--ink);
  border-left: 2px solid var(--accent);
  padding-left: 1.4rem;
  margin: 1.4rem 0 1.6rem;
}

.rb-lede {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.3rem;
  line-height: 1.45;
  color: var(--ink);
  max-width: 640px;
}

/* ============================================
   BUTTONS & LINKS
   ============================================ */

.rb-btn-row {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

.rb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.9rem;
  border-radius: var(--edge);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  transition: 0.2s ease;
}

.rb-btn--solid {
  background: var(--brand);
  color: var(--paper);
}
.rb-btn--solid:hover { background: var(--ink-soft); color: var(--paper); }

.rb-btn--outline {
  background: transparent;
  border: 1px solid var(--ink);
  color: var(--ink);
}
.rb-btn--outline:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.rb-text-link {
  display: inline-block;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  margin-top: 1.75rem;
}
.rb-text-link--on-dark { color: var(--paper); border-bottom-color: rgba(255,255,255,0.4); }
.rb-text-link--accent { color: var(--accent); border-bottom-color: var(--accent); margin-top: 1.5rem; }

/* ============================================
   ANNOUNCEMENT STRIP
   ============================================ */

.rb-announce {
  margin: 0;
  background: var(--brand);
  color: var(--paper);
  text-align: center;
  font-size: 0.82rem;
  padding: 0.7rem 1.2rem;
}
.rb-announce strong { color: var(--accent); font-weight: 700; }

/* ============================================
   MASTHEAD / NAV
   ============================================ */

.rb-masthead {
  background: #fff;
  border-bottom: 1px solid var(--rule);
  position: relative;
  z-index: 100;
}

.rb-masthead__row {
  width: min(var(--shell-width), 90%);
  min-height: 92px;
  padding: 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.rb-brand { display: flex; align-items: center; position: relative; z-index: 1; }

.rb-logo-img {
  display: block;
  height: 118px;
  width: auto;
  max-width: 92%;
}

.rb-brand--footer { margin: 0 auto 1rem; justify-content: center; }
.rb-logo-img--footer { height: 200px; max-width: 90%; }

.rb-menu-btn { display: none; }

.rb-nav { display: flex; align-items: center; gap: 2.25rem; position: relative; z-index: 20; }

.rb-nav__list {
  display: flex;
  align-items: center;
  gap: 2.1rem;
}

/* desktop: logo sits left of the nav, with extra breathing room
   between nav items now that there's a big logo beside them */
@media (min-width: 901px) {
  .rb-nav__list { gap: 2.6rem; }
  .rb-nav__list a { letter-spacing: 0.06em; }
}

.rb-nav__list a {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: 0.2s ease;
}
.rb-nav__list a:hover { color: var(--ink-soft); }

.rb-nav__cta {
  padding: 0.7rem 1.3rem;
  border: 1px solid var(--ink);
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: 0.2s ease;
}
.rb-nav__cta:hover { background: var(--brand); color: var(--paper); }

/* ============================================
   HERO
   ============================================ */

.rb-hero {
  padding: 6.5rem 0 7rem;
  background: var(--paper-warm);
  border-bottom: 1px solid var(--rule);
}

.rb-hero__layout {
  display: grid;
  grid-template-columns: 7fr 4fr;
  gap: 4.5rem;
  align-items: center;
}

.rb-hero__headline { font-size: clamp(2.8rem, 5.2vw, 4.9rem); max-width: 780px; margin-bottom: 1.75rem; }
.rb-hero__sub { max-width: 480px; font-size: 1.08rem; }

.rb-hero__aside {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-top: 4px solid var(--accent);
  padding: 2rem;
}

.rb-checklist { display: grid; gap: 1.1rem; }
.rb-checklist li {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.98rem;
  line-height: 1.4;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--rule-soft);
}
.rb-checklist li:last-child { border-bottom: none; padding-bottom: 0; }

/* ============================================
   TICKER
   ============================================ */

.rb-ticker {
  overflow: hidden;
  padding: 1.1rem 0;
  margin: 4.5rem 0 2.5rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.rb-ticker__track {
  display: flex;
  white-space: nowrap;
  width: max-content;
  animation: rb-scroll 60s linear infinite;
  will-change: transform;
  backface-visibility: hidden;
}

.rb-ticker__track span {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.05rem;
  padding: 0 2.75rem;
  color: var(--ink);
  transition: color 0.2s ease;
}

.rb-ticker__track span:hover {
  color: var(--ink-soft);
}

.rb-ticker__track span .rb-brace { padding: 0 0.3rem; }

@keyframes rb-scroll {
  from { transform: translate3d(0,0,0); }
  to { transform: translate3d(-50%,0,0); }
}

/* ============================================
   GENERIC SECTION BLOCK
   ============================================ */

.rb-block { padding: 6.5rem 0; }
.rb-block--flush-top { padding-top: 0; }
.rb-block--cream { background: var(--paper-warm); }
.rb-block--dark { background: var(--panel-dark); color: var(--paper); }
.rb-block--dark p { color: rgba(255,255,255,0.68); }

.rb-heading-block { max-width: 720px; margin-bottom: 3rem; }

/* ============================================
   INTRO
   ============================================ */

.rb-intro__layout {
  display: grid;
  grid-template-columns: 4fr 7fr;
  gap: 4rem;
  align-items: start;
  margin-top: -1.5rem;
}
.rb-intro__layout h2 { max-width: 420px; }
.rb-intro__layout .rb-lede { padding-top: 2.9rem; }

/* ============================================
   SERVICES
   ============================================ */

.rb-service-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
}

.rb-service-row li {
  border-left: 1px solid var(--rule);
  padding: 2rem 2rem 0.5rem 2rem;
}
.rb-service-row li:first-child { border-left: none; padding-left: 0; }

.rb-folio {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.rb-service-row__cta { margin-top: 3rem; }

/* ============================================
   CASE STUDY
   ============================================ */

.rb-case__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.rb-case__card {
  border-top: 1px solid rgba(255,255,255,0.25);
  padding-top: 1.75rem;
}
.rb-case__card h3 { font-size: 2rem; }

.rb-dash-list { display: grid; gap: 0.7rem; }
.rb-dash-list li {
  color: rgba(255,255,255,0.78);
  font-size: 0.98rem;
  padding-left: 1.3rem;
  position: relative;
}
.rb-dash-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ============================================
   OFFER BAND
   ============================================ */

.rb-offer {
  background: var(--accent-soft);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.rb-offer__layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 4rem 0;
}

.rb-offer .rb-offer__price-value { color: var(--ink); }
.rb-offer .rb-offer__price-label { color: rgba(17,17,17,0.85); }
.rb-offer .rb-btn--solid:hover { background: var(--paper); color: var(--ink); }
.rb-offer h2 { color: var(--ink); font-size: clamp(2.2rem, 4.6vw, 3.6rem); }
.rb-offer p { color: rgba(17,17,17,0.72); max-width: 44ch; }

.rb-offer__price-label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: rgba(17,17,17,0.72);
  margin-bottom: 1.1rem;
}
.rb-offer__price-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(3.4rem, 6vw, 4.6rem);
  line-height: 1;
  color: var(--ink);
  margin: 0 0 1.1rem;
}

@media (max-width: 900px) {
  .rb-offer__layout { grid-template-columns: 1fr; padding: 3rem 0; }
}

/* ============================================
   PROCESS
   ============================================ */


/* ============================================
   ABOUT
   ============================================ */

.rb-about__layout {
  display: grid;
  grid-template-columns: 4fr 7fr;
  gap: 4rem;
  align-items: center;
}

.rb-about__mark {
  display: flex;
  align-items: center;
  justify-content: center;
}
.rb-about__mark span {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(5rem, 11vw, 9rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
}


.rb-about__photo {
  margin: 0;
  position: relative;
}
.rb-about__photo::before {
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  background: var(--accent-soft);
  z-index: 0;
  transition: inset 0.3s ease;
}
.rb-about__photo img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--edge);
  border: 1px solid var(--rule);
}
.rb-about__photo:hover::before { inset: 8px -8px -8px 8px; }

@media (max-width: 900px) {
  .rb-about__photo { max-width: 420px; margin: 0 auto 1rem; }
}

@media (max-width: 900px) {
  .rb-about__layout { grid-template-columns: 1fr; }
}

/* ============================================
   FAQ
   ============================================ */

.rb-faq { max-width: 800px; border-top: 1px solid var(--ink); }

.rb-faq__item { border-bottom: 1px solid var(--rule); padding: 1.5rem 0; }

.rb-faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--ink);
  list-style: none;
}
.rb-faq__item summary::-webkit-details-marker { display: none; }

.rb-faq__item summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--font-body);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--accent);
}
.rb-faq__item[open] summary::after { content: "–"; }

.rb-faq__item p { margin-top: 1.1rem; max-width: 62ch; }

/* ============================================
   ESTIMATOR
   ============================================ */

.rb-estimator {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  max-width: 1000px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(17, 17, 17, 0.07);
}

.rb-estimator__controls {
  padding: 2.5rem;
  display: grid;
  gap: 2rem;
  align-content: start;
}

.rb-estimator__label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--ink);
  margin-bottom: 1rem;
}
.rb-estimator__label span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.75rem;
  font-weight: 700;
}

.rb-chip-row { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.rb-chip {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.75rem 1.2rem;
  border-radius: var(--edge);
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  transition: 0.2s ease;
}
.rb-chip:hover { border-color: var(--ink); transform: translateY(-1px); }
.rb-chip.is-active { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.rb-estimator__result {
  background: var(--panel-dark);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.rb-estimator__result-label { font-size: 0.85rem; color: rgba(255,255,255,0.65); margin-bottom: 0.35rem; }
.rb-estimator__result-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  color: var(--paper-warm);
  margin: 0 0 1.5rem;
  line-height: 1.05;
}
.rb-estimator__result .rb-btn--solid { background: var(--paper-warm); color: var(--ink); align-self: flex-start; }
.rb-estimator__result .rb-btn--solid:hover { background: var(--paper); }
.rb-estimator__socials { justify-content: flex-start; margin: 0 0 0.25rem; }
.rb-estimator__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem; }
.rb-estimator__link { color: var(--paper-warm); font-weight: 600; font-size: 0.9rem; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 2px; }
.rb-estimator__link:hover { color: var(--accent); border-bottom-color: var(--accent); }
.rb-estimator__note { font-size: 0.8rem; color: rgba(255,255,255,0.55); margin-top: 1rem; }

/* ============================================
   CONTACT
   ============================================ */

.rb-contact { padding: 0; text-align: center; }
.rb-contact h2 { max-width: 620px; margin-left: auto; margin-right: auto; }
.rb-contact p { max-width: 520px; margin-left: auto; margin-right: auto; }

.rb-contact__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2.5rem;
}

.rb-contact__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.3rem;
  border: 1px solid var(--rule);
  border-radius: var(--edge);
  font-weight: 600;
  font-size: 0.9rem;
  transition: 0.2s ease;
}
.rb-contact__link:hover { border-color: var(--accent); color: var(--accent); }

/* ============================================
   FOOTER
   ============================================ */

.rb-footer {
  text-align: center;
  padding: 2.5rem;
  border-top: 1px solid var(--rule);
}
.rb-footer p { font-size: 0.85rem; }

/* ============================================
   MOBILE
   ============================================ */

@media (max-width: 900px) {
  .rb-masthead__row { min-height: 116px; padding: 8px 0; justify-content: center; }

  /* only the header logo is centered; the footer logo stays in normal flow */
  .rb-masthead .rb-brand { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); }
  .rb-logo-img { height: 100px; width: auto; max-width: none; object-fit: contain; }
  .rb-logo-img--footer { height: 130px; max-width: 100%; }

  .rb-menu-btn {
    display: inline-flex;
    position: absolute;
    right: 0;
    z-index: 30;
    width: 44px;
    height: 44px;
    border: 1px solid var(--rule);
    background: var(--paper);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    cursor: pointer;
  }
  .rb-menu-btn span { width: 18px; height: 2px; background: var(--ink); display: block; }

  .rb-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    width: min(92vw, 300px);
    padding: 1.25rem;
    background: var(--paper);
    border: 1px solid var(--rule);
    flex-direction: column;
    align-items: stretch;
    gap: 1.1rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: 0.2s ease;
    z-index: 40;
  }
  .rb-nav.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }

  .rb-nav__list { flex-direction: column; align-items: flex-start; gap: 1.1rem; width: 100%; }
  .rb-nav__cta { text-align: center; }

  .rb-intro__layout .rb-lede { padding-top: 0; }

  .rb-hero__layout,
  .rb-intro__layout,
  .rb-case__layout,
  .rb-service-row {
    grid-template-columns: 1fr;
  }

  .rb-service-row li, .rb-service-row li:first-child { border-left: none; border-bottom: 1px solid var(--rule); padding: 1.75rem 0; }
  .rb-service-row li:last-child { border-bottom: none; }

}

@media (max-width: 640px) {
  .rb-hero { padding: 4.5rem 0 5rem; }
  h1 { font-size: clamp(2.5rem, 11vw, 3.4rem); }
  h2 { font-size: clamp(1.9rem, 9vw, 2.6rem); }
  .rb-block { padding: 4.5rem 0; }

  .rb-btn-row,
  .rb-contact__row {
    flex-direction: column;
    align-items: stretch;
  }
  .rb-btn, .rb-contact__link { width: 100%; }
}

/* highlighted word in the hero headline */
.rb-mark {
  font-style: italic;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: rgba(215, 175, 147, 0.7);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.12em;
  text-decoration-skip-ink: none;
}

.rb-btn--outline-dark { border: 1px solid rgba(255,255,255,0.4); color: var(--paper); }
.rb-btn--outline-dark:hover { border-color: var(--accent); color: var(--accent); }

/* .rb-btn--solid's near-black fill is invisible against a dark section's
   near-black background, so dark sections get an amber fill instead */
.rb-block--dark .rb-btn--solid { background: var(--accent); color: var(--ink); }
.rb-block--dark .rb-btn--solid:hover { background: var(--paper); color: var(--ink); }

.rb-block--dark .rb-contact__link { border-color: rgba(255,255,255,0.28); }
.rb-block--dark .rb-contact__link:hover { border-color: var(--accent); color: var(--accent); background: rgba(255,255,255,0.05); }

/* ============================================
   INTERFACE POLISH
   ============================================ */

html { scroll-padding-top: 24px; }


/* nav underline slide */
.rb-nav__list a { position: relative; }
.rb-nav__list a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 1px;
  background: var(--ink);
  transition: width 0.25s ease;
}
.rb-nav__list a:hover::after { width: 100%; }

/* text links get an arrow */
.rb-text-link::after { content: " \2192"; display: inline-block; transition: transform 0.2s ease; }
.rb-text-link:hover::after { transform: translateX(4px); }

/* service + process rows respond to hover */
.rb-service-row li { transition: transform 0.25s ease; }
.rb-service-row li:hover { transform: translateY(-6px); }
.rb-service-row li:hover .rb-folio { color: var(--ink); }
.rb-service-row li:hover h3 { color: var(--ink-soft); }

/* FAQ rows */
.rb-faq__item summary { transition: color 0.2s ease; }
.rb-faq__item summary:hover { color: var(--ink-soft); }

/* sections ease in as you scroll (only when JS is running) */
.rb-reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.rb-reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .rb-estimator { grid-template-columns: 1fr; }
  .rb-estimator__controls, .rb-estimator__result { padding: 1.75rem; }
}

/* ============================================
   CONTACT ICONS + BACK TO TOP
   ============================================ */

.rb-contact__icon {
  width: 60px;
  height: 60px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  color: var(--paper);
  transition: 0.2s ease;
}
.rb-contact__icon svg { width: 26px; height: 26px; }
.rb-contact__icon:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

/* light-background variant, for footers and any section
   that isn't sitting on a dark panel */
.rb-contact__row--light {
  justify-content: center;
  margin: 1.25rem 0 1.5rem;
}

.rb-contact__icon--light {
  border-color: var(--accent-strong);
  color: var(--ink);
  background: var(--paper);
}

.rb-contact__icon--light:hover {
  border-color: var(--ink);
  color: var(--paper);
  background: var(--ink);
  transform: translateY(-2px);
}

.rb-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.5rem;
  z-index: 90;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(17, 17, 17, 0.2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease, color 0.2s ease;
}
.rb-to-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }
.rb-to-top:hover { background: var(--ink); color: var(--paper); }

@media (max-width: 640px) {
  .rb-contact__row { flex-direction: row; align-items: center; }
}

/* ============================================
   PROCESS — numbered path
   ============================================ */

.rb-process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.rb-process li { position: relative; }

.rb-step-dot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 1.75rem;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper-warm);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  transition: background 0.25s ease, transform 0.25s ease;
}

/* dashed line linking each circle to the next */
.rb-process li:not(:last-child)::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 68px;
  right: -2.5rem;
  border-top: 1px dashed rgba(17, 17, 17, 0.4);
}

.rb-process h3 { font-size: 1.4rem; }
.rb-process p { max-width: 30ch; }

.rb-process li:hover .rb-step-dot { background: var(--accent-strong); color: var(--ink); transform: scale(1.06); }

@media (max-width: 900px) {
  .rb-process { grid-template-columns: 1fr; gap: 2.5rem; }
  .rb-process li { padding-left: 84px; }
  .rb-step-dot { position: absolute; left: 0; top: 0; margin: 0; }
  .rb-process li:not(:last-child)::before {
    top: 68px;
    bottom: -2.5rem;
    left: 28px;
    right: auto;
    border-top: none;
    border-left: 1px dashed rgba(17, 17, 17, 0.4);
  }
}