/* Sand (60), Petrol (30), Copper (10): surfaces, structure, accents. */
:root {
  color-scheme: light;
  --paper: #f3efe7; --surface: #f8f5ee; --surface-soft: #e8e4db;
  --ink: #213637; --ink-2: #3f5353; --muted: #526364; --line: #ced1c9;
  --blue: #1e494d; --cyan: #1e494d; --green: #1e494d; --gold: #b7502b; --copper: #b7502b;
  --on-action: #f8f5ee; --focus-ring: #b7502b;
  --blue-soft: rgba(30,73,77,.08); --cyan-soft: rgba(30,73,77,.06); --green-soft: rgba(30,73,77,.06); --gold-soft: rgba(183,80,43,.07);
  --header-line: rgba(30,73,77,.14); --header-surface: rgba(243,239,231,.96);
  --surface-glass: #f8f5ee; --surface-glass-strong: #f8f5ee; --paper-glass: #f3efe7;
  --shadow: 0 18px 48px rgba(30,73,77,.07);
}

.sand-petrol{ background: var(--paper); }

.sand-petrol .nav-links { border: 0; background: transparent; gap: 5px; }
.sand-petrol .nav-links a { position: relative; font-weight: 600; background: transparent; border-radius: 0; }
.sand-petrol .nav-links a.active::after { content: ""; position: absolute; bottom: 3px; left: 11px; right: 11px; height: 2px; background: var(--copper); }
.sand-petrol .nav-links a:hover { background: var(--blue-soft); transform: none; }
.sand-petrol .menu-toggle { background: transparent; border-color: var(--line); box-shadow: none; }
.sand-petrol .button { border-radius: 3px; font-weight: 650; }
.sand-petrol .button.secondary { background: transparent; border-color: var(--line); color: var(--blue); }
.sand-petrol .button.secondary:hover { background: var(--blue-soft); border-color: var(--blue); }
.sand-petrol .eyebrow { color: var(--blue); font-weight: 650; }
.sand-petrol .kicker { color: var(--copper); font-weight: 650; }
.sand-petrol .page-hero{ background: var(--paper); border-color: var(--line); }
.sand-petrol .site-footer { background: #1e494d; border: 0; }
.sand-petrol .footer-inner { padding: 38px 0; }
section[id], [id$="-title"], #prozesse-title { scroll-margin-top: 104px; }
.skip-link { position: fixed; top: -70px; left: 20px; z-index: 100; padding: 12px 20px; background: var(--surface); color: var(--ink); }
.skip-link:focus { top: 12px; }
.onepage main > .section { position: relative; padding: 86px 0; }
.onepage main > .section + .section::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--line) 12%, var(--line) 88%, transparent); }
.onepage .onepage-hero { min-height: 660px; gap: 32px; padding-top: 70px; padding-bottom: 70px; }
.onepage .onepage-hero h1 { font-size: clamp(2.2rem, 4.5vw, 3.6rem); line-height: 1.08; letter-spacing: -.04em; font-weight: 700; }
.onepage .availability-note{ background: transparent; box-shadow: none; border-left: 2px solid var(--copper); border-radius: 0; padding: 3px 0 3px 16px; margin-top: 24px; }
.onepage .availability-note span { font-weight: 650; }
.onepage .availability-note p { font-weight: 400; font-size: .95rem; }
.onepage-hero-photo { margin: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
.onepage-hero-photo img { width: 100%; height: 360px; object-fit: contain; background: transparent; mix-blend-mode: multiply; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent), linear-gradient(0deg, transparent, #000 14%, #000 90%, transparent); mask-composite: intersect; }
.onepage-hero-photo figcaption { padding: 10px 24px 0; display: grid; gap: 6px; }
.onepage-hero-photo .kicker { margin: 0; }
.onepage-hero-photo strong { font-size: 1.25rem; line-height: 1.35; font-weight: 650; }
.onepage-hero-photo a, .onepage-project a { color: var(--blue); font-weight: 650; text-underline-offset: 5px; text-decoration-color: var(--copper); }
.onepage .profile-photo{ border: 0; border-radius: 0; box-shadow: none; background: transparent; mask-image: linear-gradient(0deg, transparent, #000 12%); }
.onepage .profile-photo::after { display: none; }
.onepage .profile-intro { gap: 60px; }
.onepage .profile-text { gap: 12px; }
.onepage .profile-facts dt { font-weight: 650; }
.onepage .profile-facts dd { font-weight: 450; }
.onepage .section-title { font-size: clamp(1.5rem, 2.8vw, 2.2rem); line-height: 1.2; letter-spacing: -.02em; font-weight: 650; }
.onepage-services { margin-top: 36px; gap: 36px; }
.onepage .onepage-services .card{ border: 0; border-radius: 0; background: transparent; box-shadow: none; padding: 0; }
.onepage .onepage-services .card h3 { font-size: 1.3rem; font-weight: 650; }
.onepage .onepage-services .card p { margin-top: 12px; }
.onepage .tag-list { gap: 8px 16px; }
.onepage .tag-list span{ border: 0; border-radius: 0; background: transparent; padding: 0; font-size: .82rem; font-weight: 500; }
.onepage .onepage-projects { display: grid; grid-template-columns: 1fr; gap: 60px; margin-top: 42px; }
.onepage .onepage-project { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(0,1fr); gap: 48px; align-items: center; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; overflow: visible; }
.onepage .onepage-project > img { width: 100%; height: auto; aspect-ratio: 3/2; object-fit: cover; background: transparent; border-radius: 0; mask-image: linear-gradient(0deg, transparent, #000 8%, #000 96%, transparent); }
.onepage .onepage-project > div { padding: 0; display: grid; gap: 12px; }
.onepage .onepage-project .kicker { margin: 0; }
.onepage .onepage-project h3 { font-size: clamp(1.35rem,2.2vw,1.8rem); margin: 0; font-weight: 650; line-height: 1.25; }
.onepage .onepage-project p { margin: 0; }
.onepage .onepage-project a { justify-self: start; margin-top: 4px; }
.onepage .onepage-project:nth-child(even) { grid-template-columns: minmax(0,1fr) minmax(0,1.15fr); }
.onepage .onepage-project:nth-child(even) > img { grid-column: 2; grid-row: 1; }
.onepage .onepage-project:nth-child(even) > div { grid-column: 1; grid-row: 1; }
.onepage .timeline { gap: 0; margin-top: 32px; }
.onepage .timeline-item{ padding: 24px 0; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; box-shadow: none; gap: 28px; }
.onepage .timeline-item:last-child { border-bottom: 0; }
.onepage .timeline-date { font-weight: 600; color: var(--copper); }
.onepage .timeline-item h3 { font-weight: 650; }
.onepage .onepage-contact { display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px; padding: 0; border: 0; border-radius: 0; background: transparent; }
.onepage-contact-info { display: flex; flex-direction: column; justify-content: center; gap: 12px; overflow-wrap: anywhere; }
.onepage-contact-info strong { font-size: 1.35rem; font-weight: 650; }
.onepage-contact-info a { text-underline-offset: 4px; text-decoration-color: var(--copper); }
.reveal-pending { opacity: 0; transform: translateY(14px); }
.reveal-ready { transition: opacity 550ms cubic-bezier(.22,1,.36,1) 80ms, transform 550ms cubic-bezier(.22,1,.36,1) 80ms; }
.reveal-ready.is-revealed { opacity: 1; transform: none; }
.reveal-ready:focus-within { opacity: 1; transform: none; }
@media print { .reveal-pending, .reveal-ready { opacity: 1; transform: none; transition: none; } }
@media (max-width: 976px) {
  .sand-petrol.js-enabled .nav-links{ background: var(--surface); border: 1px solid var(--line); border-radius: 3px; }
}
@media (max-width: 840px) {
  .onepage main > .section { padding: 60px 0; }
  .onepage .onepage-hero { min-height: auto; padding-top: 42px; gap: 32px; }
  .onepage .profile-intro { gap: 32px; }
  .onepage .onepage-contact { grid-template-columns: 1fr; gap: 32px; }
  .onepage .onepage-project, .onepage .onepage-project:nth-child(even) { grid-template-columns: 1fr; gap: 24px; }
  .onepage .onepage-project:nth-child(even) > img, .onepage .onepage-project:nth-child(even) > div { grid-column: auto; grid-row: auto; }
  .onepage .onepage-project > img { max-height: 420px; }
  .onepage-services { gap: 26px; }
  .onepage .onepage-services .card + .card { border-top: 1px solid var(--line); padding-top: 26px; }
}
@media (max-width: 520px) {
  section[id], [id$="-title"], #prozesse-title { scroll-margin-top: 92px; }
  .onepage .section, .sand-petrol .nav-shell, .sand-petrol .footer-inner { margin-left: 20px; margin-right: 20px; }
  .onepage main > .section { padding: 48px 0; }
  .onepage .onepage-hero h1 { font-size: clamp(1.8rem,8.5vw,2.75rem); }
  .onepage-hero-photo img { height: 270px; }
  .onepage-hero-photo figcaption { padding: 0; }
  .onepage .profile-facts div { grid-template-columns: 1fr; gap: 4px; }
  .onepage .timeline-item { grid-template-columns: 1fr; gap: 8px; }
  .onepage .onepage-projects { gap: 40px; }
  .onepage .onepage-project > img { aspect-ratio: 4/3; }
  .sand-petrol .brand img { width: clamp(145px,43vw,190px); }
  .sand-petrol .nav-shell { gap: 10px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal-pending, .reveal-ready { opacity: 1; transform: none; transition: none; } }