/* ============================================================
   EL-CARBON — Stylesheet
   Tokens & Komponenten aus dem Claude-Design „El-Carbon Design System“
   ============================================================ */

/* ---------- Fonts (selbst gehostet, keine Anfrage an Google) ---------- */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/archivo-latin.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-latin.woff2') format('woff2');
}

/* ---------- Tokens ---------- */
:root {
  --carbon-950: #060708;
  --carbon-900: #0B0C0E;
  --carbon-850: #101215;
  --carbon-800: #16181C;
  --carbon-700: #1E2126;
  --carbon-600: #282C32;
  --carbon-500: #353A42;
  --carbon-400: #474D56;

  --steel-500: #5C636D;
  --steel-400: #7B828C;
  --steel-300: #9AA1AB;
  --steel-200: #BFC5CD;
  --steel-100: #DFE3E8;
  --foil: #F1F3F5;

  --gold-700: #9E6F18;
  --gold-600: #C28A22;
  --gold-500: #E0A52E;
  --gold-400: #F0BE4E;
  --gold-tint: rgba(224, 165, 46, 0.12);

  --bg-page: var(--carbon-900);
  --surface-card: var(--carbon-800);
  --border-subtle: var(--carbon-600);
  --border-default: var(--carbon-500);
  --border-strong: var(--carbon-400);
  --text-primary: var(--foil);
  --text-secondary: var(--steel-200);
  --text-muted: var(--steel-400);
  --text-faint: var(--steel-500);

  --font-display: 'Archivo Expanded', 'Archivo', system-ui, sans-serif;
  --font-body: 'Archivo', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  --shadow-md: 0 4px 16px rgba(0,0,0,0.55);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.6);
  --edge-top-hi: inset 0 1px 0 rgba(255,255,255,0.06);

  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --dur-fast: 120ms;
  --dur-base: 200ms;

  --container-max: 1280px;
  --gutter: 32px;

  --tex-carbon-fine:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.05) 0px, rgba(255,255,255,0.05) 1px, transparent 1px, transparent 4px),
    repeating-linear-gradient(-45deg, rgba(0,0,0,0.45) 0px, rgba(0,0,0,0.45) 4px, rgba(0,0,0,0.15) 4px, rgba(0,0,0,0.15) 8px),
    linear-gradient(135deg, #25292f, #15171a);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
img { display: block; }
::selection { background: var(--gold-500); color: var(--carbon-950); }
a { color: var(--gold-500); text-decoration: none; }
a:hover { color: var(--gold-400); }
:focus-visible { outline: 2px solid var(--gold-400); outline-offset: 2px; }
h1, h2, h3 { margin: 0; font-family: var(--font-display); }
p { margin: 0; }

.container { max-width: var(--container-max); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 200;
  background: var(--gold-500); color: var(--carbon-950); padding: 10px 16px;
  border-radius: var(--radius-md); font-weight: 600;
}
.skip-link:focus { top: 12px; color: var(--carbon-950); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40; height: 68px;
  background: rgba(11,12,14,0.82);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}
.site-header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.header-left { display: flex; align-items: center; gap: 40px; }
.brand { display: flex; align-items: center; }
.brand img { height: 48px; width: auto; }
.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.main-nav a {
  display: block; padding: 8px 14px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; white-space: nowrap;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: color var(--dur-fast) var(--ease-standard);
}
.main-nav a:hover { color: var(--text-primary); }
.main-nav a[aria-current="page"] { color: var(--gold-500); border-bottom-color: var(--gold-500); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1;
  border: 1px solid transparent; border-radius: var(--radius-md); cursor: pointer; white-space: nowrap; user-select: none;
  padding: 10px 20px; font-size: 13px; height: 40px;
  transition: background var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard), transform var(--dur-fast) var(--ease-standard);
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 1em; height: 1em; flex: none; }
.btn--sm { padding: 7px 14px; font-size: 12px; height: 32px; }
.btn--lg { padding: 14px 28px; font-size: 15px; height: 52px; }
.btn--primary { background: var(--gold-500); color: var(--carbon-950); border-color: var(--gold-500); }
.btn--primary:hover { background: var(--gold-400); border-color: var(--gold-400); color: var(--carbon-950); }
.btn--secondary { background: transparent; color: var(--text-primary); border-color: var(--border-strong); }
.btn--secondary:hover { border-color: var(--gold-500); color: var(--gold-400); }
.btn--ghost { background: transparent; color: var(--text-secondary); }
.btn--ghost:hover { color: var(--text-primary); background: var(--carbon-700); }

/* ---------- Section heading ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--gold-500);
}
.eyebrow::before { content: ''; width: 18px; height: 1px; background: var(--gold-600); }
.section-heading { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.section-heading--lede { max-width: 640px; }
.section-heading--center { align-items: center; text-align: center; margin-left: auto; margin-right: auto; }
.section-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(28px, 4vw, 44px); letter-spacing: 0.03em; line-height: 1.04;
  text-transform: uppercase; color: var(--text-primary);
}
.lede { font-size: 16px; line-height: 1.6; color: var(--text-muted); }

/* ---------- Cards ---------- */
.card {
  position: relative; overflow: hidden;
  background: var(--surface-card);
  border: 1px solid var(--border-default); border-radius: var(--radius-lg);
  box-shadow: var(--edge-top-hi);
}
.card--pad { padding: 28px; }
.card--interactive {
  cursor: pointer;
  transition: border-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-standard);
}
.card--interactive:hover, .card--interactive:focus-within {
  border-color: var(--gold-600); box-shadow: var(--shadow-lg); transform: translateY(-2px);
}

.badge {
  display: inline-flex; align-items: center;
  font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1;
  padding: 5px 9px; border-radius: var(--radius-sm); white-space: nowrap;
  background: var(--carbon-700); color: var(--steel-200);
}

/* ---------- Gallery card ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.gallery { list-style: none; margin: 0; padding: 0; }
.gallery-card { display: flex; flex-direction: column; height: 100%; }
.gallery-card a { color: inherit; display: flex; flex-direction: column; height: 100%; }
.gallery-card a:focus-visible { outline: none; }
.gallery-card__media {
  position: relative; height: 230px; overflow: hidden; margin: 0;
  border-top-left-radius: var(--radius-lg); border-top-right-radius: var(--radius-lg);
  background: var(--carbon-850);
}
.gallery-card__media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.92) contrast(1.05); }
.gallery-card__media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(6,7,8,0.55) 0%, transparent 45%); }
.gallery-card__cat {
  position: absolute; bottom: 12px; left: 14px; z-index: 1;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-500);
}
.gallery-card__body { padding: 16px 20px 20px; display: flex; flex-direction: column; gap: 8px; }
.gallery-card__title { font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: 0.02em; line-height: 1.1; color: var(--text-primary); }
.gallery-card__desc { font-size: 13px; line-height: 1.55; color: var(--text-muted); }

/* ---------- Home: Hero ---------- */
.hero { position: relative; min-height: 560px; display: flex; align-items: center; overflow: hidden; padding: 64px 0; }
.hero__slides { position: absolute; inset: 0; overflow: hidden; }
.hero__slides img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.85) contrast(1.08) brightness(0.7);
}
.hero__slides img.is-anim { transition: transform 900ms cubic-bezier(.65,0,.35,1); }
.hero__scrim { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,7,8,0.94) 0%, rgba(6,7,8,0.7) 45%, rgba(6,7,8,0.25) 100%); }
.hero__weave { position: absolute; inset: 0; background-image: var(--tex-carbon-fine); background-size: 8px 8px, 8px 8px, 100% 100%; opacity: 0.12; mix-blend-mode: overlay; }
.hero__content { position: relative; width: 100%; }
.hero__inner { max-width: 620px; }
.hero__eyebrow { letter-spacing: 0.18em; gap: 10px; }
.hero__eyebrow::before { width: 24px; }
.hero h1 {
  font-weight: 800; font-size: clamp(40px, 6vw, 76px); letter-spacing: 0.02em; line-height: 0.98;
  text-transform: uppercase; color: var(--foil); margin: 20px 0 0;
}
.hero h1 .gold { color: #e0a62e; }
.hero__lede { font-size: 18px; line-height: 1.6; color: var(--text-secondary); max-width: 460px; margin: 24px 0 32px; }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }

.section { padding-top: 80px; padding-bottom: 80px; }
.section-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 36px; }

.split { border-top: 1px solid var(--border-subtle); overflow: hidden; }
.split .container { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 60px; min-height: 420px; }
.split__text { padding: 64px 0; }
.split__text .btn { margin-top: 28px; }
.split__media { position: relative; height: 100%; min-height: 420px; }
.split__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(0.9) contrast(1.05); }
.split__media::after { content: ''; position: absolute; inset: 0; box-shadow: inset 0 0 80px rgba(6,7,8,0.6); }

/* ---------- Page intro (Katalog, Kontakt, Impressum) ---------- */
.page { padding-top: 56px; padding-bottom: 80px; }
.page--narrow { max-width: 880px; }
.page h1.section-title { font-size: clamp(28px, 4vw, 44px); }

/* ---------- Leistungen ---------- */
.page-hero { position: relative; min-height: 380px; display: flex; align-items: flex-end; overflow: hidden; border-bottom: 1px solid var(--border-subtle); }
.page-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(0.9) contrast(1.05) brightness(0.6); }
.page-hero::before { content: ''; position: absolute; inset: 0; z-index: 1; background: linear-gradient(0deg, rgba(6,7,8,0.96) 0%, rgba(6,7,8,0.4) 100%); }
.page-hero .container { position: relative; z-index: 2; width: 100%; padding-bottom: 48px; }

.services { list-style: none; margin: 0; padding: 72px 0; }
.service__num { font-family: var(--font-display); font-weight: 800; font-size: 34px; color: var(--gold-500); letter-spacing: 0.04em; line-height: 1.2; }
.service h3 { font-weight: 700; font-size: 18px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-primary); margin: 12px 0 8px; line-height: 1.2; }
.service p { font-size: 14px; line-height: 1.6; color: var(--text-muted); margin-bottom: 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; }

.stats { border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); background: var(--carbon-950); }
.stats dl { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin: 0; padding: 44px 0; }
.stat { display: flex; flex-direction: column-reverse; gap: 6px; }
.stat dd { margin: 0; font-family: var(--font-display); font-weight: 800; font-size: 40px; letter-spacing: 0.02em; line-height: 1; color: var(--text-primary); }
.stat dt { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); }

.cta { padding-top: 72px; padding-bottom: 72px; text-align: center; }
.cta .btn-row { justify-content: center; gap: 12px; margin-top: 28px; }

/* ---------- Kontakt ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 24px; margin-top: 40px; align-items: start; }
.contact-card { display: flex; flex-direction: column; gap: 22px; }
.contact-card h2 { font-weight: 700; font-size: 20px; letter-spacing: 0.02em; color: var(--text-primary); }
.contact-card address { font-style: normal; font-size: 15px; line-height: 1.6; color: var(--text-muted); margin-top: 6px; }
.divider { height: 1px; background: var(--border-subtle); border: 0; margin: 0; }
.contact-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.contact-row { display: flex; align-items: flex-start; gap: 14px; color: inherit; }
.contact-row__icon {
  flex: none; width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: var(--radius-md); background: var(--gold-tint); border: 1px solid var(--border-subtle); color: var(--gold-500);
}
.contact-row__icon svg { width: 18px; height: 18px; }
.contact-row__text { display: flex; flex-direction: column; gap: 2px; padding-top: 2px; min-width: 0; }
.contact-row__label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-faint); }
.contact-row__value { font-size: 15px; color: var(--text-primary); overflow-wrap: anywhere; }
a.contact-row:hover .contact-row__value { color: var(--gold-400); }
.title-icon { display: inline-flex; vertical-align: middle; width: 0.85em; height: 0.85em; color: var(--gold-500); }

.form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); }
.field input, .field textarea {
  width: 100%; background: var(--carbon-950);
  border: 1px solid var(--border-default); border-radius: var(--radius-md);
  color: var(--text-primary); font-family: var(--font-body); font-size: 14px; outline: none;
  transition: border-color var(--dur-fast) var(--ease-standard), box-shadow var(--dur-fast) var(--ease-standard);
}
.field input { height: 42px; padding: 0 12px; }
.field textarea { padding: 12px; resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus { border-color: var(--gold-500); box-shadow: 0 0 0 3px var(--gold-tint); }
.field ::placeholder { color: var(--steel-500); }
.form-note { font-size: 12px; line-height: 1.5; color: var(--text-faint); }
.form-sent { padding: 32px 8px; text-align: center; }
.form-sent h3 { font-weight: 700; font-size: 22px; color: var(--gold-500); letter-spacing: 0.02em; }
.form-sent p { font-size: 15px; line-height: 1.6; color: var(--text-muted); max-width: 420px; margin: 12px auto 24px; }

/* ---------- Impressum ---------- */
.legal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; }
.legal-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-500); margin-bottom: 10px; }
.legal-grid address, .legal-grid p { font-style: normal; font-size: 15px; line-height: 1.7; color: var(--text-primary); }
.legal-block h3 { font-weight: 700; font-size: 17px; letter-spacing: 0.02em; text-transform: uppercase; color: var(--text-primary); margin: 0 0 10px; }
.legal-block p { font-size: 14px; line-height: 1.7; color: var(--text-muted); }
.legal-blocks { display: flex; flex-direction: column; gap: 28px; margin-top: 28px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--carbon-950); border-top: 1px solid var(--border-subtle); padding: 56px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand img { height: 42px; width: auto; margin-bottom: 16px; }
.footer-brand p { font-size: 13px; line-height: 1.6; color: var(--text-faint); max-width: 280px; }
.footer-col h2 { font-family: var(--font-mono); font-weight: 400; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-500); margin-bottom: 16px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 13px; color: var(--text-muted); }
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--carbon-700);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--text-faint);
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100; display: none; flex-direction: column; align-items: center; justify-content: center;
  padding: 40px; background: rgba(4,5,6,0.92); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.lightbox.is-open { display: flex; }
.lightbox__btn {
  position: absolute; display: grid; place-items: center; cursor: pointer;
  border-radius: 999px; background: rgba(20,21,24,0.7); border: 1px solid var(--border-subtle); color: var(--text-primary);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.lightbox__btn:hover { border-color: var(--gold-600); }
.lightbox__close { top: 24px; right: 24px; width: 48px; height: 48px; }
.lightbox__nav { top: 50%; transform: translateY(-50%); width: 52px; height: 52px; }
.lightbox__prev { left: 24px; }
.lightbox__next { right: 24px; }
.lightbox__figure { max-width: 1000px; width: 100%; display: flex; flex-direction: column; align-items: center; margin: 0; }
.lightbox__figure img { max-width: 100%; max-height: 70vh; object-fit: contain; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); }
.lightbox__caption { margin-top: 20px; text-align: center; max-width: 620px; }
.lightbox__cat { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold-500); }
.lightbox__title { font-family: var(--font-display); font-weight: 700; font-size: 24px; letter-spacing: 0.02em; color: var(--text-primary); margin: 8px 0 6px; }
.lightbox__desc { font-size: 15px; line-height: 1.6; color: var(--text-secondary); }
.lightbox__count { margin-top: 14px; font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); }
body.lb-open { overflow: hidden; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats dl { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .split .container { grid-template-columns: 1fr; gap: 0; min-height: 0; }
  .split__text { padding: 48px 0 0; }
  .split__media { height: 340px; min-height: 0; margin-bottom: 48px; }
}
@media (max-width: 860px) {
  .site-header { height: auto; padding: 10px 0; }
  .site-header .container { flex-wrap: wrap; justify-content: center; gap: 8px 16px; padding-left: 20px; padding-right: 20px; }
  .header-left { flex-direction: column; gap: 8px; width: 100%; }
  .main-nav ul { flex-wrap: wrap; justify-content: center; }
  .main-nav a { padding: 6px 10px; }
  .brand img { height: 40px; }
  .header-cta { display: none; }
}
@media (max-width: 680px) {
  :root { --gutter: 20px; }
  .grid-3, .stats dl, .footer-grid, .form-row, .legal-grid { grid-template-columns: 1fr; }
  .hero { min-height: 0; padding: 56px 0; }
  .page-hero { min-height: 280px; }
  .page-hero .container { padding-bottom: 36px; }
  .section { padding-top: 48px; padding-bottom: 48px; }
  .section-head-row { flex-direction: column; align-items: flex-start; }
  .services { padding: 48px 0; }
  .stats dl { padding: 32px 0; }
  .cta { padding-top: 48px; padding-bottom: 48px; }
  .page { padding-top: 40px; padding-bottom: 48px; }
  .site-footer { padding: 40px 0 28px; }
  .card--pad { padding: 22px; }
  .lightbox { padding: 64px 12px 88px; }
  .lightbox__figure img { max-height: 52vh; }
  .lightbox__close { top: 12px; right: 12px; width: 44px; height: 44px; }
  .lightbox__nav { top: auto; bottom: 20px; transform: none; width: 48px; height: 48px; }
  .lightbox__prev { left: calc(50% - 60px); }
  .lightbox__next { right: calc(50% - 60px); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}