/* Source-based construction guide in the approved graphite and olive palette. */
.construction-guide { background: #192820; }
.node-jump-links { display: flex; flex-wrap: wrap; gap: 8px 28px; padding-block: 6px 22px; border-bottom: 1px solid var(--line); }
.node-jump-links a { padding-block: 10px; font-size: .875rem; font-weight: 700; color: var(--lime); border-bottom: 1px solid transparent; }
.node-jump-links a:hover { border-color: currentColor; }
.guide-scope { max-width: 900px; margin-block: 20px 50px; font-size: .875rem; line-height: 1.65; color: var(--muted); }
.node-feature { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(0,1fr); align-items: start; gap: 50px; padding-block: 56px; border-top: 1px solid var(--line); }
.node-feature:first-child { padding-top: 0; border-top: 0; }
.node-feature:nth-child(2) .node-figure { order: 2; }
.node-feature:nth-child(2) .node-copy { order: 1; }
.node-figure, .node-copy { min-width: 0; }
.node-visual { display: block; position: relative; padding: 0 0 48px; width: 100%; border: 1px solid #dce2d6; background: #fff; color: var(--accent-ink); cursor: zoom-in; overflow: hidden; }
.node-visual img { display: block; width: 100%; height: auto; max-width: 100%; object-fit: contain; }
.node-visual .zoom-label { right: 0; bottom: 0; padding: 12px 17px; min-height: 44px; font-size: .875rem; }
.node-visual:hover .zoom-label { background: #e3edc7; }
.dark-node-visual { background: #000; border-color: #435246; }
.timber-construction-guide .node-feature:nth-child(4) .node-figure { order: 2; }
.timber-construction-guide .node-feature:nth-child(4) .node-copy { order: 1; }
.large-media.dark-media { background: #000; }
.node-image-caption { color: var(--muted); font-size: .8125rem; line-height: 1.5; margin-top: 12px; }
.node-copy .eyebrow { margin-bottom: 16px; }
.node-copy h3 { font-size: clamp(1.625rem,2.4vw,2rem); line-height: 1.22; margin-bottom: 21px; }
.node-intro { font-size: 1rem; line-height: 1.75; color: var(--ink); margin: 0 0 25px; }
.node-parts { display: grid; gap: 21px; margin: 0; }
.node-parts dt { font-size: 1rem; line-height: 1.5; font-weight: 700; margin-bottom: 5px; }
.node-parts dd { font-size: 1rem; line-height: 1.7; color: var(--muted); margin: 0; }
.node-project-note { margin: 28px 0 0; padding-top: 19px; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; line-height: 1.7; }
.node-legend { border-block: 1px solid var(--line); margin-top: 28px; }
.node-legend summary { display: flex; justify-content: space-between; gap: 20px; padding: 17px 0; cursor: pointer; list-style: none; color: var(--lime); font-size: .875rem; font-weight: 700; }
.node-legend summary::-webkit-details-marker { display: none; }
.node-legend summary span { font-size: 1.25rem; line-height: 1; transition: transform .15s ease; }
.node-legend[open] summary span { transform: rotate(45deg); }
.node-legend ol { margin: 0; padding: 0 0 20px 25px; }
.node-legend li { padding-left: 7px; padding-block: 7px; font-size: .875rem; line-height: 1.65; }
.node-legend li::marker { color: var(--lime); font-weight: 800; }
.node-legend li strong { font-weight: 500; }
.node-feature-wide { grid-template-columns: 1fr; gap: 30px; }
.node-feature-wide .node-copy { max-width: none; }
.node-feature-wide h3 { max-width: 720px; }
.node-feature-wide .node-intro { max-width: 890px; }
.node-feature-wide .node-parts { grid-template-columns: 1fr 1fr; column-gap: 60px; }
.node-feature-wide .node-parts>div:nth-child(2) { grid-column: 1; grid-row: 2; }
.frame-models { padding-top: 60px; border-top: 1px solid var(--line); }
.frame-models .section-head { align-items: start; }
.frame-models .section-head h2 { max-width: 600px; }
.frame-model-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.frame-model-grid>article { background: var(--soft); min-width: 0; }
.frame-model-grid .node-visual img { aspect-ratio: 1.73; object-fit: contain; }
.frame-model-copy { padding: 28px; }
.frame-model-copy .eyebrow { margin-bottom: 14px; }
.frame-model-copy h3 { font-size: 1.5rem; line-height: 1.3; margin-bottom: 22px; }
.frame-model-copy .node-intro { margin-bottom: 22px; }
.frame-model-copy .node-parts { gap: 20px; }
.guide-specifications { margin-top: 64px; }
.home-construction { padding-block: 90px; background: #192820; border-block: 1px solid var(--line); }
.home-construction-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.1fr); align-items: center; gap: 70px; }
.home-construction h2 { margin-top: 18px; margin-bottom: 24px; }
.home-construction p:not(.eyebrow):not(.node-image-caption) { font-size: 1rem; line-height: 1.75; color: var(--muted); }
.home-construction ul { list-style: none; margin: 30px 0; padding: 0; display: grid; gap: 19px; }
.home-construction li { padding-left: 19px; border-left: 2px solid var(--lime); }
.home-construction li strong { display: block; font-size: 1rem; font-weight: 700; margin-bottom: 3px; }
.home-construction li span { display: block; font-size: 1rem; color: var(--muted); line-height: 1.6; }
.home-construction figure { margin: 0; min-width: 0; }
.home-construction figcaption { margin-top: 14px; color: var(--muted); font-size: .8125rem; line-height: 1.6; }
.media-zoom-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 0 0 16px; }
.media-zoom-tools button { min-height: 44px; padding: 10px 16px; background: var(--soft); color: var(--ink); font-size: .875rem; font-weight: 700; border: 1px solid var(--line); }
.media-zoom-tools button:hover, .media-zoom-tools button[aria-pressed=true] { background: var(--lime); color: var(--accent-ink); }
.media-zoom-tools>span { flex-basis: 100%; font-size: .875rem; color: var(--muted); line-height: 1.6; }
.large-media.is-zoomed img { display: block; width: 200%; max-width: none; height: auto; object-fit: initial; }
.node-dialog-description { max-width: 850px; margin: 35px auto 0; padding-top: 30px; border-top: 1px solid var(--line); }
.node-dialog-description .node-parts { grid-template-columns: 1fr 1fr; column-gap: 32px; }
@media (max-width:1100px) {
  .node-feature { gap: 30px; }
  .frame-model-grid { grid-template-columns: 1fr; }
  .frame-model-grid>article { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: start; }
  .frame-model-copy { padding: 30px; }
  .home-construction-grid { gap: 38px; }
}
@media (max-width:800px) {
  .timber-construction-guide .node-feature:nth-child(4) .node-figure, .timber-construction-guide .node-feature:nth-child(4) .node-copy { order: initial; }
  .node-feature { grid-template-columns: 1fr; padding-block: 38px; }
  .node-feature:nth-child(2) .node-figure, .node-feature:nth-child(2) .node-copy { order: initial; }
  .node-feature-wide .node-parts { column-gap: 28px; }
  .home-construction { padding-block: 65px; }
  .home-construction-grid { grid-template-columns: 1fr; }
  .home-construction figure { max-width: 620px; width: 100%; }
  .node-jump-links { gap: 4px 22px; }
}
@media (max-width:600px) {
  .guide-scope { margin-bottom: 35px; }
  .node-feature-wide .node-parts, .node-dialog-description .node-parts { grid-template-columns: 1fr; }
  .node-feature-wide .node-parts>div:nth-child(2) { grid-column: auto; grid-row: auto; }
  .frame-model-grid>article { display: block; }
  .frame-model-copy { padding: 25px 22px; }
  .frame-models { padding-top: 38px; }
  .frame-models .section-head { gap: 20px; }
  .node-feature { gap: 22px; }
  .node-copy h3 { font-size: 1.625rem; }
  .guide-specifications { margin-top: 42px; }
  .media-zoom-tools { gap: 8px; }
  .media-zoom-tools button { flex-grow: 1; }
}

.mobile-construction-guide .node-feature-wide .node-parts>div:nth-child(2) { grid-column: auto; grid-row: auto; }

/* Compact timber details: full explanations remain in the shared zoom dialog. */
.timber-construction-guide { padding-block: 48px; }
.timber-construction-guide .section-head { margin-bottom: 26px; gap: 28px; }
.timber-node-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 16px; }
.timber-node-card { display: flex; flex-direction: column; padding: 0; min-width: 0; text-align: left; background: var(--soft); border: 1px solid var(--line); scroll-margin-top: calc(var(--header-height) + var(--section-nav-height) + 24px); }
.timber-node-thumbnail { display: block; width: 100%; aspect-ratio: 1.55; overflow: hidden; background: #000; }
.timber-node-thumbnail img { width: 100%; height: 100%; object-fit: contain; }
.timber-node-card-copy { display: flex; flex: 1; flex-direction: column; padding: 16px; overflow-wrap: anywhere; }
.timber-node-card-copy strong { font-size: 1rem; line-height: 1.35; font-weight: 800; }
.timber-node-summary { display: block; margin-top: 9px; color: var(--muted); font-size: .875rem; line-height: 1.5; }
.timber-node-open { display: block; padding-top: 17px; margin-top: auto; color: var(--lime); font-size: .875rem; line-height: 1.4; font-weight: 700; }
.timber-node-card:hover { border-color: var(--lime); }
.timber-node-scope { margin-top: 20px; max-width: 1050px; font-size: .875rem; line-height: 1.6; color: var(--muted); }
.timber-node-specifications { margin-top: 22px; border-block: 1px solid var(--line); }
.timber-node-specifications summary { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 17px 0; font-size: .875rem; line-height: 1.5; font-weight: 700; cursor: pointer; list-style: none; }
.timber-node-specifications summary::-webkit-details-marker { display: none; }
.timber-node-specifications summary>span { font-size: 1.25rem; }
.timber-node-specifications[open] summary>span { transform: rotate(45deg); }
.timber-node-specifications .spec-grid { margin: 0; padding-bottom: 20px; }
@media(max-width:1150px) { .timber-node-grid { grid-template-columns: repeat(3,minmax(0,1fr)); } }
@media(max-width:700px) {
  .timber-construction-guide { padding-block: 36px; }
  .timber-node-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
  .timber-node-card-copy { padding: 13px; }
  .timber-node-thumbnail { aspect-ratio: 1.45; }
  .timber-node-scope { margin-top: 17px; }
}