.site-header .current { border-bottom-color: var(--green); }

.detail-hero {
  width: min(1180px, calc(100% - 3rem));
  min-height: 500px;
  margin: clamp(2rem, 5vw, 4.5rem) auto 0;
  display: grid;
  grid-template-columns: minmax(330px, .9fr) minmax(0, 1.1fr);
  background: var(--paper);
}

.detail-copy {
  align-self: center;
  padding: clamp(3rem, 5vw, 5rem);
}

.detail-copy h1 {
  margin: 1rem 0 1.5rem;
  font-size: clamp(2.7rem, 4.8vw, 5rem);
  line-height: 1.22;
  letter-spacing: .01em;
}

.detail-copy > p:not(.eyebrow):not(.detail-meta) {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.05rem;
}

.detail-meta {
  display: flex;
  gap: .8rem;
  color: var(--green-dark);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
}

.detail-meta span + span::before {
  content: "・";
  margin-right: .8rem;
}

.specs {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 2.5rem;
  margin: 2rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.specs dt {
  color: var(--muted);
  font-size: .72rem;
  letter-spacing: .1em;
}

.specs dd { margin: .2rem 0 0; font-weight: 700; }

.detail-cover {
  min-height: 500px;
  margin: 0;
  overflow: hidden;
  background: #e8edeb;
}

.detail-cover img {
  width: 100%;
  height: 100%;
  min-height: 500px;
  object-fit: contain;
}

.case-summary,
.comparison-section,
.photo-section,
.faq-section {
  width: min(1180px, calc(100% - 3rem));
  margin: 0 auto;
  padding: clamp(4.5rem, 8vw, 7rem) 0;
}

.case-summary {
  display: grid;
  grid-template-columns: minmax(260px, .75fr) minmax(0, 1.25fr);
  grid-template-areas:
    "title content";
  column-gap: clamp(2.5rem, 7vw, 7rem);
  row-gap: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.case-summary > header { grid-area: title; }
.summary-intro {
  max-width: 360px;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.75;
}
.summary-list { grid-area: content; border-top: 1px solid var(--line); }

.case-summary h2,
.comparison-section h2,
.photo-section h2,
.faq-section h2 { margin-bottom: 0; }

.comparison-section > header,
.photo-section > header,
.faq-section > header { margin-bottom: 2.25rem; }

.summary-list article {
  display: grid;
  grid-template-columns: minmax(120px, .35fr) minmax(0, 1fr);
  gap: 2rem;
  padding: 1.55rem 0;
  border-bottom: 1px solid var(--line);
}
.summary-list h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.25rem;
}
.summary-list ul {
  display: grid;
  gap: .45rem;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: .92rem;
  list-style: none;
}
.summary-list li { position: relative; padding-left: 1rem; }
.summary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .8em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
}
.comparison-section > header > p:last-child {
  max-width: 700px;
  color: var(--muted);
}

.comparison-group + .comparison-group { margin-top: clamp(4rem, 7vw, 6rem); }
.comparison-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.25rem;
}
.comparison-heading h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.55rem;
}
.comparison-heading p { margin: 0; color: var(--muted); font-size: .88rem; }
.comparison-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.comparison-notes p {
  margin: 0;
  color: var(--muted);
  font-size: .86rem;
  line-height: 1.7;
}
.comparison-notes strong {
  display: block;
  margin-bottom: .2rem;
  color: var(--ink);
}
.comparison-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.comparison-grid figure {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: #eef1ef;
}
.comparison-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #eef1ef;
}
.small-bedroom-before-zoom img {
  transform: scale(1.5);
  transform-origin: 68% 54%;
}
.small-bedroom-after-zoom img {
  transform: scale(1.45);
  transform-origin: 50% 55%;
}
.comparison-grid figcaption {
  position: absolute;
  left: .75rem;
  top: .75rem;
  padding: .38rem .65rem;
  background: rgba(255,255,255,.92);
  color: var(--ink);
  font-size: .75rem;
  font-weight: 700;
}

.photo-section { padding-top: 1.5rem; }
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(2rem, 3.5vw, 3.5rem) clamp(1rem, 2vw, 1.75rem);
}
.photo-grid figure { min-width: 0; margin: 0; }
.photo-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #eef1ef;
}
.photo-grid figcaption {
  min-height: 3.2rem;
  padding: .8rem .1rem 0;
  color: var(--muted);
  font-size: .86rem;
  line-height: 1.6;
}
.photo-grid figcaption strong {
  display: block;
  margin-bottom: .3rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1rem;
}

.faq-section {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) minmax(0, 1.3fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  border-top: 1px solid var(--line);
}
.faq-section details { border-bottom: 1px solid var(--line); }
.faq-section summary {
  position: relative;
  padding: 1.4rem 2rem 1.4rem 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
}
.faq-section summary::-webkit-details-marker { display: none; }
.faq-section summary::after {
  content: "+";
  position: absolute;
  right: .25rem;
  color: var(--green-dark);
}
.faq-section details[open] summary::after { content: "−"; }
.faq-section details p { padding-right: 2rem; color: var(--muted); font-size: .9rem; }

.case-back { padding: 0 1.25rem 7rem; text-align: center; }
.case-back a { padding-bottom: .25rem; border-bottom: 1px solid currentColor; font-weight: 700; }

.preview-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.3rem clamp(1.25rem, 7vw, 8rem);
  background: #102b34;
  color: rgba(255,255,255,.72);
}
.preview-footer img {
  width: 250px;
  height: 58px;
  object-fit: contain;
  object-position: left;
  box-sizing: border-box;
  padding: .3rem .5rem;
  background: #fff;
  filter: none;
  opacity: 1;
}
.preview-footer p { margin: 0; font-size: .78rem; }

@media (max-width: 900px) {
  .detail-hero {
    width: min(720px, calc(100% - 2.5rem));
    grid-template-columns: 1fr;
  }
  .detail-cover { min-height: auto; order: -1; }
  .detail-cover img { min-height: auto; aspect-ratio: 4 / 3; }
  .case-summary,
  .comparison-section,
  .photo-section,
  .faq-section { width: min(720px, calc(100% - 2.5rem)); }
  .photo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 650px) {
  .detail-hero,
  .case-summary,
  .comparison-section,
  .photo-section,
  .faq-section { width: calc(100% - 2rem); }
  .detail-copy { padding: 3rem 1.25rem 3.5rem; }
  .detail-copy h1 { font-size: clamp(2.45rem, 12vw, 3.4rem); }
  .case-summary,
  .faq-section { grid-template-columns: 1fr; gap: 1.5rem; }
  .case-summary {
    grid-template-areas:
      "title"
      "content";
  }
  .summary-list article,
  .comparison-grid,
  .comparison-notes,
  .photo-grid { grid-template-columns: 1fr; }
  .summary-list article { gap: .6rem; }
  .comparison-heading { display: block; }
  .comparison-heading p { margin-top: .4rem; }
  .preview-footer { display: grid; }
}

.right-after-focus img {
  object-position: 50% 45%;
}

.detail-cover img {
  object-fit: cover;
  object-position: 50% 50%;
}

.bedroom-focus img {
  aspect-ratio: 3 / 4;
  object-fit: contain;
  object-position: 50% 50%;
}

.project-details-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-details-grid img {
  aspect-ratio: 4 / 3;
  object-fit: contain;
}

@media (max-width: 650px) {
  .project-details-grid {
    grid-template-columns: 1fr;
  }
}