:root {
  --ink: #22262d;
  --soft-ink: #3a3d42;
  --paper: #f4f1ec;
  --paper-deep: #ebe6de;
  --stone: #9b9693;
  --stone-dark: #827c7c;
  --brass: #a78352;
  --white: #fffaf2;
  --rule: rgba(34, 38, 45, 0.15);
  --shadow: 0 24px 70px rgba(34, 38, 45, 0.16);
  --pad: clamp(1.35rem, 4vw, 4.5rem);
  --max: 1480px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.5; text-rendering: optimizeLegibility; }
body.nav-open { overflow: hidden; }
img, video { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3 { margin: 0; }
.site-header { position: fixed; top: 0; left: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; width: 100%; padding: 1.05rem var(--pad); color: var(--white); transition: background 240ms ease, color 240ms ease, border-color 240ms ease, padding 240ms ease; }
.site-header.is-scrolled, .site-header.nav-active { background: rgba(244, 241, 236, 0.94); color: var(--ink); border-bottom: 1px solid var(--rule); backdrop-filter: blur(18px); padding-block: 0.72rem; }
.brand { display: inline-flex; align-items: baseline; gap: 0.82rem; min-width: 0; }
.brand-text { font-size: clamp(1.55rem, 3.4vw, 3rem); font-weight: 800; letter-spacing: -0.06em; line-height: 1; white-space: nowrap; text-transform: lowercase; }
.site-nav { display: flex; align-items: center; flex-shrink: 0; gap: clamp(0.75rem, 1.15vw, 1.25rem); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.site-nav a { padding: 0.55rem 0; border-bottom: 1px solid transparent; }
.site-nav a:hover, .site-nav a[aria-current="page"] { border-color: currentColor; }
.menu-toggle { position: relative; z-index: 35; display: none; width: 2.8rem; height: 2.8rem; padding: 0; border: 1px solid currentColor; border-radius: 50%; background: transparent; color: inherit; }
.menu-toggle span { display: block; width: 1.1rem; height: 1px; margin: 0.35rem auto; background: currentColor; }
.page-hero { position: relative; min-height: clamp(34rem, 72vh, 54rem); display: grid; align-items: end; padding: clamp(8rem, 14vw, 14rem) var(--pad) clamp(4rem, 8vw, 7rem); color: var(--white); background: var(--stone); }
.home-hero { min-height: 100svh; align-items: center; justify-items: center; text-align: center; }
.page-hero-media, .page-hero-overlay { position: absolute; inset: 0; }
.image-contain-hero .page-hero-media { background: #1f2227; }
.image-contain-hero .page-hero-media img { object-fit: contain; }
.page-hero-overlay { background: linear-gradient(180deg, rgba(34,38,45,0.35), rgba(34,38,45,0.42)); }
.page-hero-content { position: relative; z-index: 1; width: min(960px, 100%); }
.home-hero .page-hero-content { width: min(760px, 100%); }
.page-hero h1 { max-width: 1050px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(3.2rem, 8.4vw, 8.5rem); font-weight: 400; letter-spacing: -0.055em; line-height: 0.95; }
.home-hero h1 { font-family: Inter, ui-sans-serif, system-ui, sans-serif; font-size: clamp(2rem, 3.5vw, 4rem); font-weight: 500; letter-spacing: 0.01em; text-transform: uppercase; line-height: 1.18; }
.page-hero p:not(.section-label) { max-width: 720px; margin-top: 1.3rem; font-size: clamp(1.05rem, 1.7vw, 1.45rem); color: rgba(255,250,242,0.9); }
.home-hero p:not(.section-label) { margin-inline: auto; }
.hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.85rem; }
.hero-actions .button { margin-top: 1.6rem; }
.hero-proof { display: flex; justify-content: center; flex-wrap: wrap; gap: 1rem 2.25rem; margin-top: 2.5rem; color: rgba(255,250,242,0.86); font-size: 1rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.hero-proof span { min-width: 10.5rem; padding-top: 1rem; border-top: 1px solid rgba(255,250,242,0.5); }
.button, .section-link, .catalogue-card a, .brand-feature-link { display: inline-flex; align-items: center; gap: 0.75rem; margin-top: 1.6rem; border: 1px solid currentColor; padding: 0.9rem 1.15rem; color: var(--ink); font-size: 0.82rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; transition: background 220ms ease, color 220ms ease, transform 220ms ease; }
.button-light { color: var(--white); }
.button:hover, .section-link:hover, .catalogue-card a:hover, .brand-feature-link:hover { background: var(--ink); color: var(--white); transform: translateY(-2px); }
.button-light:hover { background: var(--white); color: var(--ink); }
.section-label { margin-bottom: 1rem; color: var(--stone-dark); font-size: clamp(0.88rem, 1.2vw, 1.15rem); font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.page-hero .section-label { color: rgba(255,250,242,0.84); }
section { padding: clamp(4.8rem, 8vw, 8.5rem) var(--pad); border-top: 1px solid var(--rule); }
.brand-feature { position: relative; isolation: isolate; display: grid; place-items: center; gap: clamp(1rem, 2vw, 1.8rem); min-height: clamp(34rem, 68vh, 48rem); background: #dde6ec; color: var(--white); text-align: center; overflow: hidden; }
.brand-feature::before { content: ""; position: absolute; inset: 0; z-index: -3; background: linear-gradient(120deg, rgba(255,250,242,0.38), rgba(143,162,178,0.18)), url('/sdconcrete-media-download/files/2025/03/terrazzo_brass.jpeg') center/cover; filter: saturate(0.82) brightness(1.05); transform: scale(1.06); }
.brand-feature::after { content: ""; position: absolute; inset: 0; z-index: -2; background: radial-gradient(circle at 28% 18%, rgba(255,255,255,0.9), transparent 22rem), radial-gradient(circle at 78% 70%, rgba(183,207,225,0.58), transparent 26rem), linear-gradient(180deg, rgba(244,241,236,0.5), rgba(126,148,166,0.42)); backdrop-filter: blur(10px) saturate(1.2); }
.brand-feature > * { position: relative; z-index: 1; }
.brand-feature-mark { width: min(980px, calc(100vw - (var(--pad) * 2))); padding: clamp(2rem, 5vw, 5rem) clamp(1.4rem, 4vw, 4.5rem); border: 1px solid rgba(255,255,255,0.46); border-radius: 28px; background: linear-gradient(135deg, rgba(255,255,255,0.34), rgba(255,255,255,0.12)); box-shadow: inset 0 1px 0 rgba(255,255,255,0.72), inset 0 -1px 0 rgba(255,255,255,0.16), 0 32px 90px rgba(34,38,45,0.2); backdrop-filter: blur(28px) saturate(1.45); }
.brand-feature-mark::before { content: ""; position: absolute; inset: 1px; border-radius: 27px; background: linear-gradient(115deg, rgba(255,255,255,0.4), transparent 38%, rgba(255,255,255,0.2) 72%, transparent); pointer-events: none; }
.brand-feature-mark span { display: block; color: rgba(255,250,242,0.72); font-size: clamp(3rem, 8vw, 8rem); font-weight: 300; letter-spacing: -0.07em; line-height: 0.85; text-shadow: 0 1px 24px rgba(34,38,45,0.16); }
.brand-feature-mark strong { display: block; color: rgba(255,250,242,0.9); font-size: clamp(5rem, 15vw, 15rem); line-height: 0.75; letter-spacing: -0.08em; text-shadow: 0 2px 34px rgba(34,38,45,0.2); }
.brand-feature-copy { width: min(760px, 100%); color: rgba(34,38,45,0.78); font-size: clamp(1.05rem, 1.45vw, 1.28rem); }
.brand-feature-link { margin-top: 0.2rem; border-color: rgba(34,38,45,0.28); background: rgba(255,250,242,0.22); backdrop-filter: blur(18px) saturate(1.3); }
.split-section { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(18rem, 1fr); gap: clamp(2rem, 7vw, 7rem); align-items: start; }
.alt { background: var(--paper-deep); }
h2 { color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.8rem, 6vw, 6.2rem); font-weight: 400; letter-spacing: -0.055em; line-height: 1; }
h3 { color: var(--ink); font-size: clamp(1.45rem, 2.4vw, 2.4rem); font-weight: 450; letter-spacing: -0.035em; line-height: 1.08; }
.section-heading { width: min(760px, 100%); margin-bottom: clamp(2.6rem, 5vw, 4.5rem); }
.section-heading p:not(.section-label), .split-section p:not(.section-label), .cta-band p, .video-proof p { color: var(--soft-ink); font-size: clamp(1.05rem, 1.55vw, 1.38rem); line-height: 1.48; }
.quick-links, .specifier-list, .note-list { display: grid; border-top: 1px solid var(--rule); }
.quick-links a, .specifier-list a, .note-list p { display: flex; justify-content: space-between; gap: 2rem; padding: 1.25rem 0; border-bottom: 1px solid var(--rule); color: var(--ink); font-size: clamp(1.05rem, 1.65vw, 1.45rem); }
.project-overview-dropdown { padding: clamp(1.15rem, 2vw, 1.8rem) var(--pad); background: var(--paper); }
.project-overview-dropdown details { width: min(var(--max), 100%); margin-inline: auto; border: 1px solid var(--rule); background: rgba(255,250,242,0.48); }
.project-overview-dropdown summary { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: clamp(1rem, 3vw, 3rem); padding: clamp(1.1rem, 2vw, 1.7rem); cursor: pointer; list-style: none; }
.project-overview-dropdown summary::marker, .project-overview-dropdown summary::-webkit-details-marker { display: none; content: ""; }
.overview-summary-copy { display: grid; gap: 0.35rem; min-width: 0; }
.project-overview-dropdown summary .section-label { margin-bottom: 0; font-size: 0.76rem; }
.overview-preview { max-width: 860px; color: var(--ink); font-size: clamp(1.05rem, 1.45vw, 1.28rem); line-height: 1.42; }
.overview-toggle { flex: 0 0 auto; border: 1px solid currentColor; padding: 0.78rem 0.95rem; color: var(--ink); font-size: 0.72rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.overview-toggle::before { content: attr(data-open); }
.project-overview-dropdown details[open] .overview-toggle { background: var(--ink); color: var(--white); }
.project-overview-dropdown details[open] .overview-toggle::before { content: attr(data-close); }
.project-overview-dropdown .note-list { margin: 0 clamp(1.1rem, 2vw, 1.7rem) clamp(1.1rem, 2vw, 1.7rem); }
.project-overview-dropdown .note-list p { display: block; padding: 1rem 0; font-size: clamp(1rem, 1.25vw, 1.15rem); line-height: 1.48; }
.legacy-proof-grid, .process-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.15rem, 2.4vw, 2.5rem); }
.legacy-proof-card, .process-steps article { display: grid; align-content: start; gap: 1rem; min-height: 100%; padding: clamp(1.2rem, 2.4vw, 2rem); border-top: 1px solid var(--rule); background: rgba(255,250,242,0.34); }
.legacy-proof-card span, .process-steps span { color: var(--stone-dark); font-size: 0.76rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.legacy-proof-card p, .process-steps p { color: var(--soft-ink); }
.legacy-proof-card a { align-self: end; width: fit-content; margin-top: 0.5rem; border-bottom: 1px solid currentColor; color: var(--ink); font-size: 0.78rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.card-grid, .service-grid, .project-archive-grid, .projects-feature-grid, .materials-grid, .gallery-grid, .catalogue-grid { display: grid; gap: clamp(1.15rem, 2.4vw, 2.5rem); }
.catalogue-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.service-grid, .project-archive-grid, .projects-feature-grid, .materials-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.compact { gap: 1.2rem; }
.catalogue-card img { height: clamp(13rem, 19vw, 21rem); margin-bottom: 1.4rem; border-radius: 6px; }
.catalogue-card p, .service-card p, .project-card p { color: var(--soft-ink); margin-top: 0.65rem; }
.catalogue-projects { margin-top: clamp(4rem, 7vw, 7rem); padding-top: clamp(3rem, 5vw, 5rem); border-top: 1px solid var(--rule); }
.catalogue-projects-header { display: grid; grid-template-columns: minmax(14rem, 0.48fr) minmax(0, 0.82fr); gap: clamp(1.6rem, 5vw, 5rem); align-items: end; margin-bottom: clamp(2rem, 4vw, 3.8rem); }
.catalogue-projects-header p:not(.section-label), .catalogue-projects-header .section-link, .catalogue-projects-header .expand-toggle { grid-column: 2; }
.home-projects { scroll-margin-top: 6rem; }
.home-projects-panel { padding-top: clamp(0.5rem, 2vw, 1.5rem); }
.expand-toggle { justify-self: start; display: inline-flex; align-items: center; gap: 0.85rem; margin-top: 1.6rem; border: 1px solid currentColor; padding: 0.9rem 1.15rem; background: transparent; color: var(--ink); font: inherit; font-size: 0.82rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; cursor: pointer; transition: background 220ms ease, color 220ms ease, transform 220ms ease; }
.expand-toggle:hover { background: var(--ink); color: var(--white); transform: translateY(-2px); }
.expand-toggle-icon { position: relative; width: 0.9rem; height: 0.9rem; flex: 0 0 auto; transition: transform 220ms ease; }
.expand-toggle-icon::before, .expand-toggle-icon::after { content: ""; position: absolute; background: currentColor; }
.expand-toggle-icon::before { top: 50%; left: 0; width: 100%; height: 2px; transform: translateY(-50%); }
.expand-toggle-icon::after { top: 0; left: 50%; width: 2px; height: 100%; transform: translateX(-50%); }
.expand-toggle[aria-expanded="true"] .expand-toggle-icon { transform: rotate(180deg); }
.expand-toggle[aria-expanded="true"] .expand-toggle-icon::after { display: none; }
.project-card, .service-card, .surface-offering, .material-tile { min-width: 0; }
.project-card a, .service-card a { display: block; height: 100%; }
.project-card img, .service-card img, .material-tile img { height: clamp(12rem, 20vw, 21rem); margin-bottom: 1rem; border-radius: 6px; background: #d8d4cd; transition: transform 600ms ease, opacity 250ms ease; }
.project-card:hover img, .service-card:hover img { transform: scale(1.025); opacity: 0.86; }
.project-card span, .service-card span { display: block; margin-bottom: 0.55rem; color: var(--stone-dark); font-size: 0.78rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.catalogue-projects .project-card img { height: clamp(9.5rem, 13vw, 14rem); }
.video-proof { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(20rem, 1fr); gap: clamp(2rem, 7vw, 7rem); align-items: center; background: var(--paper-deep); }
.video-placeholder { min-height: 24rem; display: grid; align-content: end; gap: 1rem; padding: clamp(1.5rem, 3vw, 2.5rem); border-radius: 6px; background: linear-gradient(135deg, rgba(34,38,45,0.95), rgba(74,76,75,0.76)), url('/sdconcrete-media-download/files/2025/08/palladian-min.jpg') center/cover; color: var(--white); box-shadow: var(--shadow); }
.video-placeholder span { font-size: 0.75rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.75; }
.video-placeholder strong { max-width: 560px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.2rem, 4vw, 4.2rem); font-weight: 400; line-height: 0.98; }
.samples-placeholder { margin-top: clamp(1.25rem, 2.5vw, 2rem); padding: clamp(1.2rem, 2.5vw, 2rem); border: 1px dashed rgba(24, 33, 50, 0.28); border-radius: 6px; background: rgba(255,255,255,0.5); }
.samples-placeholder h3 { margin: 0.45rem 0 0.6rem; font-family: Georgia, "Times New Roman", serif; font-size: clamp(1.5rem, 3vw, 2.15rem); line-height: 1.05; color: var(--ink); }
.samples-placeholder p { margin: 0; max-width: 70ch; color: rgba(24, 33, 50, 0.82); }
.video-proof-frame { position: relative; border-radius: 8px; overflow: hidden; background: #111; box-shadow: var(--shadow); }
.video-proof-frame::before { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255,255,255,0.28); border-radius: inherit; pointer-events: none; z-index: 2; }
.video-proof-frame iframe { display: block; width: 100%; aspect-ratio: 16 / 9; border: 0; }
.project-video { width: 100%; min-height: 24rem; max-height: 34rem; border-radius: 6px; background: var(--stone-dark); object-fit: cover; box-shadow: var(--shadow); }
.gallery-grid { grid-template-columns: 1.2fr 0.8fr; }
.gallery-grid img { min-height: clamp(16rem, 32vw, 34rem); border-radius: 6px; }
.gallery-grid img:first-child { grid-row: span 2; }
.natural-gallery img { height: auto; min-height: 0; object-fit: contain; }
.natural-gallery img:first-child { grid-row: auto; }
.project-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; padding: 0 var(--pad); background: var(--rule); }
.project-meta div { padding: 1.4rem; background: var(--paper); }
.project-meta span { display: block; margin-bottom: 0.3rem; color: var(--stone-dark); font-size: 0.74rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.project-meta strong { font-size: clamp(1rem, 1.6vw, 1.35rem); font-weight: 450; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-bottom: 2rem; }
.filter-button { border: 1px solid var(--rule); border-radius: 999px; padding: 0.72rem 1rem; background: transparent; color: var(--ink); font: inherit; font-size: 0.78rem; font-weight: 900; letter-spacing: 0.07em; text-transform: uppercase; cursor: pointer; }
.filter-button.is-active, .filter-button:hover { background: var(--ink); color: var(--white); }
.project-card.is-hidden { display: none; }
.cta-band, .planning-cta { display: grid; justify-items: center; gap: 1rem; background: var(--stone); color: var(--white); text-align: center; }
.cta-band h2, .cta-band p, .cta-band .section-label, .cta-band .button { color: inherit; }
.contact-panel { display: grid; gap: 0.8rem; background: var(--paper-deep); }
.contact-form-section { align-items: start; }
.lead-form { display: grid; gap: 0.85rem; width: min(620px, 100%); justify-self: end; }
.lead-form label { color: var(--soft-ink); font-size: 0.78rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
.lead-form input, .lead-form select, .lead-form textarea { width: 100%; border: 1px solid var(--rule); border-radius: 6px; padding: 0.9rem 1rem; background: var(--white); color: var(--ink); font: inherit; }
.lead-form textarea { resize: vertical; min-height: 9rem; }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { outline: 2px solid var(--stone-dark); outline-offset: 2px; }
.lead-form .button { justify-self: start; background: transparent; cursor: pointer; }
.site-footer { display: flex; justify-content: space-between; gap: 2rem; padding: 2rem var(--pad); border-top: 1px solid var(--rule); color: var(--soft-ink); }
.site-footer p { font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1rem; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 650ms ease, transform 650ms ease; }
.reveal.is-visible, .reveal { opacity: 1; transform: none; }
@media (max-width: 1100px) {
  .site-nav { gap: 0.85rem; font-size: 0.66rem; }
  .project-meta { grid-template-columns: repeat(2, 1fr); }
  .service-grid, .project-archive-grid, .projects-feature-grid, .materials-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 820px) {
  .site-header { align-items: flex-start; }
  .brand { align-items: center; flex-wrap: wrap; max-width: calc(100% - 4rem); }
  .brand-text { font-size: 2rem; }
  .menu-toggle { display: block; }
  .site-nav { position: fixed; inset: 0; display: none; align-content: center; justify-items: center; gap: 1.2rem; padding: 6rem 2rem; background: rgba(244,241,236,0.98); color: var(--ink); font-size: 1rem; }
  .site-nav.is-open { display: grid; }
  .split-section, .video-proof, .catalogue-projects-header, .gallery-grid { grid-template-columns: 1fr; }
  .catalogue-projects-header p:not(.section-label), .catalogue-projects-header .section-link, .catalogue-projects-header .expand-toggle { grid-column: auto; }
  .catalogue-grid, .service-grid, .project-archive-grid, .projects-feature-grid, .materials-grid, .project-meta, .legacy-proof-grid, .process-steps { grid-template-columns: 1fr; }
  .gallery-grid img:first-child { grid-row: auto; }
  .project-card img, .service-card img, .catalogue-card img, .catalogue-projects .project-card img { height: clamp(10rem, 42vw, 17rem); }
  .page-hero, .home-hero { min-height: 88svh; padding-top: 7rem; }
  section { padding-block: 4.2rem; }
  .brand-feature { min-height: 34rem; }
  .brand-feature-mark span { font-size: clamp(2.8rem, 13vw, 4.4rem); }
  .brand-feature-mark strong { font-size: clamp(4rem, 23vw, 7rem); }
  .brand-feature-copy { max-width: 22rem; }
  .site-footer { display: grid; }
}
@media (max-width: 560px) {
  .page-hero h1 { font-size: clamp(3rem, 15vw, 4.8rem); }
  .home-hero .page-hero-content { max-width: 22rem; padding-inline: 1rem; }
  .home-hero h1 { font-size: 1.55rem; }
  .home-hero p:not(.section-label) { max-width: 17rem; font-size: 1rem; }
  .hero-actions { display: grid; width: min(100%, 20rem); margin-inline: auto; }
  .hero-actions .button { justify-content: center; width: 100%; margin-top: 0.85rem; text-align: center; }
  .hero-proof { display: grid; gap: 0.75rem; margin-top: 1.65rem; font-size: 0.86rem; }
  .hero-proof span { min-width: 0; padding-top: 0.7rem; }
  h2 { font-size: clamp(2.5rem, 13vw, 4rem); }
  .video-placeholder { min-height: 18rem; }
  .project-video { min-height: 18rem; }
}