/* Local house-building flow page. Shared navigation remains in style.css. */
.rio-home-v2.rio-house-building-flow .rio-flow-main,
.rio-home-v2.rio-house-building-flow .rio-flow-intro {
  color: var(--rio-ink);
  background: var(--rio-cream-light);
}

.rio-home-v2.rio-house-building-flow .rio-flow-steps > .rio-flow-step:nth-child(odd) {
  background: var(--rio-cream);
}

.rio-home-v2.rio-house-building-flow .rio-flow-steps > .rio-flow-step:nth-child(even) {
  background: var(--rio-cream-light);
}

.rio-home-v2.rio-house-building-flow .rio-flow-shell {
  width: min(1040px, calc(100% - 80px));
  margin-inline: auto;
}

.rio-home-v2.rio-house-building-flow .rio-flow-intro {
  padding-block: clamp(64px, 7vw, 100px) 56px;
}

.rio-home-v2.rio-house-building-flow .rio-flow-eyebrow {
  margin-bottom: 16px;
  color: var(--rio-orange-dark);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.rio-home-v2.rio-house-building-flow h1 {
  color: var(--rio-navy);
  font-size: clamp(2.25rem, 4.6vw, 3.75rem);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

.rio-home-v2.rio-house-building-flow .rio-flow-overview {
  margin-top: clamp(36px, 4vw, 56px);
}

.rio-home-v2.rio-house-building-flow .rio-flow-overview ol {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: 24px;
}

.rio-home-v2.rio-house-building-flow .rio-flow-overview li {
  min-width: 0;
  border-top: 1px solid var(--rio-line);
}

.rio-home-v2.rio-house-building-flow .rio-flow-overview a {
  min-height: 76px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 16px 2px;
  color: var(--rio-navy);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.7;
  transition: background-color 180ms ease;
}

.rio-home-v2.rio-house-building-flow .rio-flow-nav-number {
  color: var(--rio-orange-dark);
  font-size: 0.75rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.rio-home-v2.rio-house-building-flow .rio-flow-nav-arrow {
  color: var(--rio-orange-dark);
}

.rio-home-v2.rio-house-building-flow .rio-flow-land-step .rio-flow-step-copy {
  grid-column: 2;
}

.rio-home-v2.rio-house-building-flow .rio-flow-step-layout {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding-block: clamp(48px, 5.5vw, 72px);
}

.rio-home-v2.rio-house-building-flow .rio-flow-steps > .rio-flow-step:first-child .rio-flow-step-layout,
.rio-home-v2.rio-house-building-flow .rio-flow-step + .rio-flow-step .rio-flow-step-layout {
  border-top: 1px solid var(--rio-line);
}

.rio-home-v2.rio-house-building-flow .rio-flow-steps > .rio-flow-step:last-child .rio-flow-step-layout {
  border-bottom: 1px solid var(--rio-line);
}

.rio-home-v2.rio-house-building-flow .rio-flow-number {
  padding-top: 0.5rem;
  color: var(--rio-ink);
  font-size: 0.875rem;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  line-height: 1.8;
  letter-spacing: 0.02em;
}

.rio-home-v2.rio-house-building-flow .rio-flow-step-copy {
  min-width: 0;
  max-width: 44rem;
}

.rio-home-v2.rio-house-building-flow .rio-flow-step h2 {
  scroll-margin-top: 128px;
  color: var(--rio-navy);
  font-size: clamp(1.5rem, 2.7vw, 2rem);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.04em;
  overflow-wrap: anywhere;
}

.rio-home-v2.rio-house-building-flow .rio-flow-step-copy > p {
  margin-top: 20px;
  font-size: 1rem;
  line-height: 2;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

@media (hover: hover) {
  .rio-home-v2.rio-house-building-flow .rio-flow-overview a:hover {
    background: var(--rio-cream-light);
    text-decoration: underline;
    text-underline-offset: 5px;
  }
}

@media (max-width: 820px) {
  .rio-home-v2.rio-house-building-flow .rio-flow-shell {
    width: min(720px, calc(100% - 48px));
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-overview ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-step-layout {
    grid-template-columns: 1.75rem minmax(0, 1fr);
    gap: 16px;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-step h2 {
    scroll-margin-top: 104px;
  }
}

@media (max-width: 560px) {
  .rio-home-v2.rio-house-building-flow .rio-flow-shell {
    width: calc(100% - 40px);
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-intro {
    padding-block: 56px 36px;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-overview ol {
    grid-template-columns: 1fr;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-overview a {
    min-height: 52px;
    padding-block: 12px;
    column-gap: 16px;
    font-size: 0.9375rem;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-step-layout {
    grid-template-columns: 1fr;
    gap: 12px;
    padding-block: 40px 48px;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-land-step .rio-flow-step-copy {
    grid-column: 1;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-number {
    padding-top: 0;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-step-copy > p {
    margin-top: 16px;
    font-size: 0.9375rem;
  }

}

@media (prefers-reduced-motion: reduce) {
  .rio-home-v2.rio-house-building-flow .rio-flow-overview a {
    transition: none;
  }
}

/* Approved illustrations for steps 01, 03, 06 and 08. */
.rio-home-v2.rio-house-building-flow .rio-flow-step-illustrated .rio-flow-step-layout {
  grid-template-columns: 1.75rem minmax(0, 1fr) clamp(240px, 28vw, 360px);
  column-gap: 16px;
  padding-block: clamp(72px, 7vw, 96px);
}

.rio-home-v2.rio-house-building-flow .rio-flow-illustration {
  width: 100%;
  max-width: 360px;
  align-self: center;
  justify-self: center;
}

.rio-home-v2.rio-house-building-flow .rio-flow-illustration img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

@media (max-width: 820px) {
  .rio-home-v2.rio-house-building-flow .rio-flow-step-illustrated .rio-flow-step-layout {
    grid-template-columns: 1.75rem minmax(0, 1fr);
    gap: 16px;
    padding-block: 64px;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-illustration {
    grid-column: 2;
    margin-top: 8px;
  }
}

@media (max-width: 560px) {
  .rio-home-v2.rio-house-building-flow .rio-flow-step-illustrated .rio-flow-step-layout {
    grid-template-columns: 1fr;
    gap: 12px;
    padding-block: 48px 56px;
  }

  .rio-home-v2.rio-house-building-flow .rio-flow-illustration {
    grid-column: 1;
    width: min(100%, 320px);
    margin-top: 20px;
  }
}

/* 既存の地図付き施工エリア案を、このページ内に限定して使用する。 */
.rio-home-v2.rio-house-building-flow .rio-area-preview {
  padding-block: clamp(64px, 7vw, 104px);
  scroll-margin-top: 96px;
}

.rio-home-v2.rio-house-building-flow .rio-area-preview .rio-service-area-inner {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
  grid-template-areas: "heading map" "details map";
  gap: 34px clamp(36px, 6vw, 86px);
  align-items: start;
}

.rio-home-v2.rio-house-building-flow .rio-area-heading {
  grid-area: heading;
}

.rio-home-v2.rio-house-building-flow .rio-area-preview h2 {
  font-size: clamp(1.8rem, 3.1vw, 2.7rem);
  line-height: 1.55;
  letter-spacing: 0.03em;
}

.rio-home-v2.rio-house-building-flow .rio-area-map {
  grid-area: map;
  align-self: center;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

.rio-home-v2.rio-house-building-flow .rio-area-map img {
  display: block;
  width: 100%;
  height: auto;
}

.rio-home-v2.rio-house-building-flow .rio-area-preview .rio-service-area-details {
  grid-area: details;
  padding: 0;
  border: 0;
  font-size: 0.94rem;
}

.rio-home-v2.rio-house-building-flow .rio-area-preview .rio-area-primary::before {
  content: "";
  display: block;
  width: 36px;
  height: 3px;
  margin-bottom: 21px;
  border-radius: 2px;
  background: var(--rio-orange-dark);
}

.rio-home-v2.rio-house-building-flow .rio-area-preview .rio-area-primary strong {
  display: block;
  margin-block: 6px;
  color: var(--rio-navy);
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.035em;
}

.rio-home-v2.rio-house-building-flow .rio-area-preview .rio-area-consult {
  margin-top: 27px;
  padding-top: 24px;
  border-top: 1px solid var(--rio-line);
  line-height: 2;
}

.rio-home-v2.rio-house-building-flow .rio-area-preview .rio-area-consult strong {
  color: var(--rio-navy);
  font-weight: 500;
}

.rio-home-v2.rio-house-building-flow .rio-area-preview .rio-area-note {
  max-width: 38em;
  margin-top: 23px;
  color: var(--rio-muted);
  font-size: 0.8rem;
  line-height: 1.85;
}

@media (max-width: 820px) {
  .rio-home-v2.rio-house-building-flow .rio-area-preview .rio-service-area-inner {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "heading" "details" "map";
    gap: 28px;
  }

  .rio-home-v2.rio-house-building-flow .rio-area-preview h2 {
    font-size: clamp(1.65rem, 5.5vw, 2.4rem);
  }

  .rio-home-v2.rio-house-building-flow .rio-area-map {
    max-width: 390px;
  }

  .rio-home-v2.rio-house-building-flow .rio-area-preview .rio-service-area-details {
    width: 100%;
    max-width: 480px;
    margin-inline: auto;
  }

  .rio-home-v2.rio-house-building-flow .rio-area-desktop-break {
    display: none;
  }
}