:root {
  --paper: #ffffff;
  --surface: #ffffff;
  --ink: #2e3739;
  --muted: #5d686b;
  --line: #d9ddde;
  --accent: #ee0040;
  --accent-deep: #c90036;
  --evergreen: #5d6769;
  --container: 1120px;
  --shadow: 0 22px 56px rgba(21, 35, 30, 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
body.menu-open { overflow: hidden; }
a { color: inherit; }
img { display: block; max-width: 100%; }
.container { width: min(calc(100% - 3rem), var(--container)); margin: 0 auto; }
.skip-link { position: fixed; z-index: 200; left: 1rem; top: -5rem; padding: .75rem 1rem; background: var(--evergreen); color: #fff; text-decoration: none; }
.skip-link:focus { top: 1rem; }

.site-header { position: absolute; z-index: 100; top: calc(100svh - 5.75rem); right: 0; left: 0; height: 5.75rem; display: flex; justify-content: center; pointer-events: none; }
.site-header.is-scrolled { position: fixed; top: 0; }
.site-header::before { content: ""; position: absolute; inset: 0; background: rgba(255, 255, 255, .96); box-shadow: 0 2px 18px rgba(20, 36, 30, .07); opacity: 0; transition: opacity .25s ease; }
.site-header.is-scrolled::before { opacity: 1; }
.brand { position: absolute; z-index: 2; top: .85rem; width: clamp(12rem, 26vw, 24rem); padding: .3rem .55rem; background: #fff; text-decoration: none; pointer-events: auto; }
.brand-logo { display: block; width: 100%; height: auto; }
.brand-mark { display: grid; width: 3.45rem; height: 3.45rem; place-items: center; border: 1px solid rgba(255,255,255,.7); border-radius: 50%; background: rgba(28, 40, 37, .46); font-size: 1rem; font-weight: 700; letter-spacing: .06em; transition: background .25s ease, border-color .25s ease; }
.site-header.is-scrolled .brand-mark { background: var(--accent); border-color: var(--accent); color: #fff; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-size: 1.12rem; letter-spacing: .01em; }
.brand-copy span { font-size: .74rem; opacity: .86; }
.menu-toggle { position: absolute; z-index: 3; top: 1.25rem; left: clamp(1rem, 3vw, 3rem); display: grid; width: 3.2rem; height: 3.2rem; padding: .8rem; place-content: center; gap: .3rem; border: 1px solid rgba(255,255,255,.68); border-radius: 50%; background: rgba(25, 38, 34, .35); cursor: pointer; pointer-events: auto; transition: background .25s ease, border-color .25s ease; }
.site-header.is-scrolled .menu-toggle { background: #fff; border-color: var(--line); }
.menu-toggle span { display: block; width: 1.35rem; height: 2px; background: #fff; transition: transform .2s ease, background .25s ease; }
.site-header.is-scrolled .menu-toggle span { background: var(--ink); }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(.38rem) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-.38rem) rotate(-45deg); }
.site-nav { position: fixed; z-index: 1; top: 0; bottom: 0; left: 0; display: flex; width: min(27rem, 88vw); padding: 8rem clamp(2rem, 6vw, 5rem) 3rem; flex-direction: column; gap: .45rem; background: var(--evergreen); box-shadow: 18px 0 60px rgba(12, 22, 19, .26); color: #fff; opacity: 0; pointer-events: none; transform: translateX(-100%); transition: opacity .25s ease, transform .3s cubic-bezier(.2,.8,.2,1); }
.site-nav.is-open { opacity: 1; pointer-events: auto; transform: translateX(0); }
.site-nav a { padding: .6rem 0; font-size: clamp(1.25rem, 2vw, 1.75rem); font-weight: 600; text-decoration: none; }
.site-nav a:hover, .site-nav a:focus-visible { color: #fff; text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 3px; text-underline-offset: 7px; }
.nav-kicker { margin: 0 0 1rem; color: var(--accent); font-size: .75rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.site-nav .nav-contact { margin-top: auto; padding-top: 2rem; color: #fff; font-size: 1rem; }

.quick-contact { position: fixed; z-index: 90; top: 50%; right: 0; display: flex; flex-direction: column; transform: translateY(-50%); }
.quick-contact a { display: flex; width: 8.8rem; min-height: 3.6rem; padding: .65rem 1rem; align-items: center; gap: .65rem; background: var(--accent); color: #fff; font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-decoration: none; text-transform: uppercase; transform: translateX(5.25rem); transition: transform .2s ease, background .2s ease; }
.quick-contact a + a { background: var(--evergreen); }
.quick-contact a:hover, .quick-contact a:focus-visible { transform: translateX(0); background: var(--accent-deep); }
.quick-contact-icon { width: 1.25rem; height: 1.25rem; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; }

.hero { position: relative; display: grid; min-height: 100svh; overflow: hidden; place-items: center; background: var(--evergreen); color: #fff; }
.hero-placeholder { position: absolute; inset: -7%; display: grid; place-items: center; background-image: linear-gradient(115deg, rgba(46, 55, 57, .7), rgba(46,55,57,.12)), url("./assets/hero-placeholder.png"); background-position: center; background-size: cover; transform: translateY(0) scale(1.03); will-change: transform; }
.hero-placeholder::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(90deg, transparent 0 28px, rgba(255,255,255,.035) 29px 30px); mix-blend-mode: overlay; }
.hero-placeholder span { position: relative; padding: .8rem 1.1rem; border: 1px solid rgba(255,255,255,.65); color: rgba(255,255,255,.82); font-size: .7rem; letter-spacing: .14em; line-height: 1.7; text-align: center; text-transform: uppercase; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(46,55,57,.8), rgba(46,55,57,.08) 72%), linear-gradient(0deg, rgba(46,55,57,.46), transparent 40%); }
.hero-content { position: relative; width: min(calc(100% - 3rem), var(--container)); margin: 9rem auto 2rem; align-self: center; }
.eyebrow, .card-kicker { margin: 0 0 .85rem; color: var(--accent); font-size: .74rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.hero .eyebrow { color: #fff; }
.hero h1 { max-width: 14ch; margin: 0; font-size: clamp(3.2rem, 8vw, 7.6rem); font-weight: 700; letter-spacing: -.065em; line-height: .94; }
.hero-content > p:not(.eyebrow) { max-width: 35rem; margin: 1.65rem 0 0; color: rgba(255,255,255,.9); font-size: clamp(1rem, 1.8vw, 1.2rem); }
.hero-cta { display: inline-flex; margin-top: 2rem; padding: .8rem 0; border-bottom: 1px solid #fff; align-items: center; gap: 2rem; color: #fff; font-weight: 700; text-decoration: none; }
.scroll-cue { position: absolute; right: clamp(1rem, 3vw, 3rem); bottom: 1.75rem; color: #fff; font-size: .72rem; letter-spacing: .15em; text-decoration: none; text-transform: uppercase; }
.scroll-cue span { margin-left: .7rem; font-size: 1.2rem; }

.section { position: relative; padding: clamp(4.5rem, 9vw, 8rem) 0; }
.section-intro { background: var(--surface); }
.section-grid { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: clamp(2rem, 7vw, 7rem); align-items: start; }
.section h2, .focus-card h2, .philosophy-card h2 { margin: 0; font-size: clamp(2.2rem, 4.5vw, 4.75rem); font-weight: 700; letter-spacing: -.06em; line-height: .98; }
.section-copy p, .value-card p, .service-card p, .focus-card p, .reference-card p, .contact-copy p, .contact-form p { color: var(--muted); }
.section-copy p:first-child { margin-top: 0; }
.values { padding-top: 0; background: var(--surface); }
.values-grid, .services-grid, .reference-grid { display: grid; gap: 1rem; }
.values-grid { grid-template-columns: repeat(3,1fr); }
.value-card, .service-card, .reference-card, .contact-form, .focus-card, .philosophy-card { border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); }
.value-card, .service-card, .reference-card { padding: 1.65rem; }
.value-card h3, .service-card h3, .reference-card h3, .contact-copy h3, .contact-form h3 { margin: 0; font-size: 1.15rem; line-height: 1.35; }
.philosophy { padding-block: clamp(6rem, 12vw, 11rem); overflow: hidden; background: #f4f5f5; }
.philosophy::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(90deg, rgba(46,55,57,.84), rgba(46,55,57,.26)), url("./assets/hero-placeholder.png"); background-position: center; background-size: cover; background-attachment: fixed; }
.philosophy-card { position: relative; display: grid; padding: clamp(2rem,5vw,4rem); grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 2rem; background: rgba(93,103,105,.9); border-color: rgba(255,255,255,.3); color: #fff; backdrop-filter: blur(5px); }
.philosophy-card .eyebrow, .philosophy-card p { color: rgba(255,255,255,.82); }
.philosophy-text { margin: 0; font-size: 1.08rem; }
.services { background: #f4f5f5; }
.services-grid { margin-top: 3rem; grid-template-columns: repeat(3,1fr); }
.service-card { min-height: 13rem; }
.service-image { margin: -1.65rem -1.65rem 1.5rem; overflow: hidden; }
.service-image img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.service-card::before { content: ""; display: block; width: 2.2rem; height: 2px; margin-bottom: 2rem; background: var(--accent); }
.focus { background: var(--surface); }
.focus-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1rem; }
.focus-card { padding: clamp(1.7rem,4vw,3.5rem); }
.focus-card:first-child { background: var(--evergreen); border-color: var(--evergreen); color: #fff; }
.focus-card:first-child p, .focus-card:first-child li { color: rgba(255,255,255,.8); }
.focus-card ul { display: grid; gap: .7rem; margin: 1.25rem 0 0; padding: 0; list-style: none; }
.focus-card li { position: relative; padding-left: 1.15rem; color: var(--muted); }
.focus-card li::before { content: ""; position: absolute; top: .65rem; left: 0; width: .4rem; height: .4rem; background: var(--accent); border-radius: 50%; }
.references { background: #f4f5f5; }
.reference-grid { margin-top: 3rem; grid-template-columns: repeat(4,1fr); }
.reference-card { position: relative; display: flex; min-height: 19rem; padding-top: 6rem; flex-direction: column; justify-content: flex-end; overflow: hidden; background-image: linear-gradient(160deg, rgba(27,51,44,.76), rgba(186,113,63,.24)), url("./assets/hero-placeholder.png"); background-position: center; background-size: cover; color: #fff; }
.reference-card:nth-child(2), .reference-card:nth-child(4) { background-image: linear-gradient(160deg, rgba(27,51,44,.7), rgba(186,113,63,.18)), url("./assets/facade-placeholder.png"); }
.reference-card:nth-child(2) { background-position: 72% center; }
.reference-card:nth-child(3) { background-position: 30% center; }
.reference-card:nth-child(4) { background-position: 88% center; }
.reference-card::after { content: "Projektfoto"; position: absolute; top: 1.2rem; left: 1.4rem; color: currentColor; font-size: .64rem; letter-spacing: .14em; opacity: .75; text-transform: uppercase; }
.reference-card p { color: inherit; opacity: .88; }
.reference-index { position: absolute; right: 1.25rem; bottom: 1rem; color: inherit; font-size: 2.8rem; font-weight: 700; opacity: .23; }
.partners { background: var(--surface); }
.partner-list { display: flex; margin: 3rem 0 0; padding: 0; flex-wrap: wrap; gap: .75rem; list-style: none; }
.partner-list li { padding: .75rem 1rem; border: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.contact { background: var(--evergreen); color: #fff; }
.contact .eyebrow { color: var(--accent); }
.contact h2 { color: #fff; }
.contact-copy p { color: rgba(255,255,255,.77); }
.contact-grid { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.contact-cards { display: grid; gap: 1rem; margin-top: 2rem; }
.contact-cards article { padding-bottom: 1rem; border-bottom: 1px solid rgba(255,255,255,.2); }
.contact-cards h3, .contact-cards p { margin: 0; }
.contact-cards p { color: rgba(255,255,255,.8); }
.contact-actions { display: flex; margin-top: 2rem; gap: .75rem; flex-wrap: wrap; }
.button, .hero-cta { transition: transform .2s ease, background .2s ease; }
.button { display: inline-flex; min-height: 3rem; padding: .75rem 1.1rem; align-items: center; justify-content: center; border: 1px solid transparent; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.button:hover, .button:focus-visible, .hero-cta:hover, .hero-cta:focus-visible { transform: translateY(-2px); }
.button-primary { background: var(--accent); color: #fff; }
.button-secondary { background: transparent; border-color: rgba(255,255,255,.6); color: #fff; }
.contact-form { padding: clamp(1.5rem,3vw,2.5rem); color: var(--ink); }
.contact-form label { display: block; margin: 1rem 0 .35rem; font-size: .9rem; font-weight: 700; }
.contact-form input, .contact-form textarea { width: 100%; padding: .8rem; border: 1px solid var(--line); border-radius: 0; background: #fbfcfa; color: var(--ink); font: inherit; }
.contact-form textarea { min-height: 9rem; resize: vertical; }
.checkbox { display: grid !important; grid-template-columns: auto 1fr; align-items: start; gap: .7rem; }
.checkbox input { width: 1.1rem; height: 1.1rem; margin-top: .2rem; }
.checkbox span { color: var(--muted); font-size: .88rem; }
.form-note, .form-intro, .noscript-note { font-size: .9rem; }
.form-status { min-height: 1.5rem; font-weight: 700; }
.form-status[data-state="error"] { color: #9d311f; }
.form-status[data-state="success"] { color: var(--evergreen); }
.site-footer { padding: 2.5rem 0; background: #2e3739; color: #fff; }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; }
.footer-inner p, .footer-links a { color: rgba(255,255,255,.66); }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1rem; }
.footer-links a { text-decoration: none; }
.legal-title { margin: 0; font-size: clamp(2.4rem,5vw,4.5rem); letter-spacing: -.06em; line-height: 1; }
.reveal { opacity: 1; transform: none; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.history-header { position: sticky; top: 0; height: 5.75rem; background: #fff; }
.history-header::before { opacity: 1; }
.history-header .menu-toggle { background: #fff; border-color: var(--line); }
.history-header .menu-toggle span { background: var(--ink); }
.history-hero { padding: clamp(8rem, 15vw, 13rem) 0 clamp(5rem, 9vw, 8rem); background: linear-gradient(115deg, rgba(46,55,57,.92), rgba(46,55,57,.62)), url("./assets/facade-placeholder.png") center / cover; color: #fff; }
.history-hero .eyebrow { color: #fff; }
.history-hero h1 { max-width: 13ch; margin: 0; font-size: clamp(3.4rem, 8vw, 7rem); letter-spacing: -.07em; line-height: .93; }
.history-hero p:not(.eyebrow) { max-width: 40rem; margin: 1.75rem 0 0; color: rgba(255,255,255,.86); }
.history-intro { background: #fff; }
.timeline-heading { max-width: 44rem; margin-bottom: clamp(3rem, 8vw, 7rem); }
.timeline-heading h2, .history-cta h2 { margin: 0; font-size: clamp(2.8rem, 6vw, 5.5rem); letter-spacing: -.065em; line-height: .94; }
.timeline-heading > p:last-child { margin: 1.25rem 0 0; color: var(--muted); }
.history-timeline { overflow: hidden; background: #f4f5f5; }
.timeline { position: relative; display: grid; gap: clamp(4rem, 10vw, 8rem); margin: 0; padding: 0; list-style: none; }
.timeline::before { content: ""; position: absolute; top: 1rem; bottom: 1rem; left: 50%; width: 2px; background: var(--accent); transform: translateX(-50%); }
.timeline-item { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 9vw, 9rem); align-items: center; }
.timeline-item::before { content: ""; position: absolute; z-index: 1; top: 2.1rem; left: 50%; width: 1rem; height: 1rem; border: 4px solid #f4f5f5; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 2px var(--accent); transform: translateX(-50%); }
.timeline-copy { grid-column: 1; padding-right: clamp(0rem, 5vw, 4rem); text-align: right; }
.timeline-item-reverse .timeline-copy { grid-column: 2; grid-row: 1; padding-right: 0; padding-left: clamp(0rem, 5vw, 4rem); text-align: left; }
.timeline-image { grid-column: 2; margin: 0; overflow: hidden; background: var(--evergreen); }
.timeline-item-reverse .timeline-image { grid-column: 1; grid-row: 1; }
.timeline-image img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; filter: saturate(.72); }
.timeline-image figcaption { padding: .8rem 1rem; background: var(--evergreen); color: #fff; font-size: .75rem; }
.timeline-label { margin: 0 0 .7rem; color: var(--accent); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.timeline-label span { color: var(--muted); }
.timeline-copy h3 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.5rem); letter-spacing: -.04em; line-height: 1.1; }
.timeline-copy p:last-child { color: var(--muted); }
.history-cta { background: #fff; text-align: center; }
.history-cta .button { margin-top: 2rem; }

@media (max-width: 900px) {
  .section-grid, .contact-grid, .philosophy-card, .focus-grid { grid-template-columns: 1fr; }
  .values-grid, .services-grid, .reference-grid { grid-template-columns: repeat(2,1fr); }
  .quick-contact { top: auto; right: 0; bottom: 0; left: 0; flex-direction: row; transform: none; }
  .quick-contact a { width: 50%; min-height: 3.4rem; justify-content: center; transform: none; }
  .quick-contact a:hover, .quick-contact a:focus-visible { transform: none; }
  body { padding-bottom: 3.4rem; }
  .timeline::before { left: .5rem; }
  .timeline-item, .timeline-item-reverse { grid-template-columns: 1fr; gap: 1.25rem; padding-left: 2.25rem; }
  .timeline-item::before { top: 1.2rem; left: .5rem; }
  .timeline-copy, .timeline-item-reverse .timeline-copy { grid-column: 1; grid-row: auto; padding: 0; text-align: left; }
  .timeline-image, .timeline-item-reverse .timeline-image { grid-column: 1; grid-row: auto; }
}
@media (max-width: 620px) {
  .container, .hero-content { width: min(calc(100% - 2rem), var(--container)); }
  .brand { top: 1.15rem; width: clamp(12rem, 52vw, 18rem); }
  .menu-toggle { left: 1rem; }
  .hero h1 { font-size: clamp(3rem, 14vw, 5.1rem); }
  .hero-content { margin-top: 7rem; }
  .scroll-cue { display: none; }
  .values-grid, .services-grid, .reference-grid { grid-template-columns: 1fr; }
  .reference-card { min-height: 15rem; }
  .footer-inner, .footer-links { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}