/* ============================================================
   BIM X · Website-Stylesheet (Hauptseite, Stories, Produktseiten)
   Dunkler Film-Hero + helle Sektionen + dunkler Footer.
   ============================================================ */

:root {
  /* Film (dunkel) */
  --bx-dark-bg: #0c141d;
  --bx-dark-surface: #111c28;
  --bx-dark-ink: #ede7db;
  --bx-dark-muted: #93a0ab;
  --bx-dark-hairline: #2a3844;
  --bx-film-accent: #e03e2d;
  /* Marke (hell, aus dem Logo) */
  --bx-bg: #ffffff;
  --bx-surface: #f5f7fa;
  --bx-ink: #0f1822;
  --bx-muted: #5a6672;
  --bx-hairline: #e2e7ec;
  --bx-blue: #1e5c8c;
  --bx-red: #c42b4a;
  --bx-grad: linear-gradient(135deg, #1e5c8c 0%, #6b3a68 55%, #c42b4a 100%);
  --bx-font-sans: "Satoshi", "Segoe UI", system-ui, sans-serif;
  --bx-font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  color: var(--bx-ink);
  background: var(--bx-bg);
  font-family: var(--bx-font-sans);
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; height: auto; }

.bx-container {
  width: min(72rem, calc(100% - clamp(2.5rem, 8vw, 10rem)));
  margin-inline: auto;
}

/* ---------- Header / Nav ---------- */

/* Logo links oben — komplette Wortmarke, ohne störende Pille.
   Umschaltung hell/dunkel je nach Untergrund (data-solid). */
.bx-logo-corner {
  position: fixed;
  z-index: 61;
  top: 1rem;
  left: clamp(0.9rem, 2.5vw, 2rem);
  display: block;
  line-height: 0;
  text-decoration: none;
}

.bx-logo-corner img {
  height: 3.6rem; /* V15: +30% am Desktop (mobil bleibt 1.75rem) */
  width: auto;
}

/* Weiße Wortmarke auf dunklem Hero, farbige auf hellem Grund.
   Spezifität mit img-Selektor, damit genau EINE Variante sichtbar ist. */
.bx-logo-corner img.bx-logo-corner__on-dark {
  display: block;
  filter: drop-shadow(0 1px 5px rgba(0, 0, 0, 0.6));
}
.bx-logo-corner img.bx-logo-corner__on-light { display: none; }

.bx-logo-corner[data-solid="true"] img.bx-logo-corner__on-dark { display: none; }
.bx-logo-corner[data-solid="true"] img.bx-logo-corner__on-light { display: block; }

.bx-nav {
  position: fixed;
  z-index: 60;
  top: 0.95rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  width: max-content;
  max-width: calc(100% - 1.25rem);
  padding: 0.45rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(12, 20, 29, 0.55);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: 0 12px 40px -18px rgba(0, 0, 0, 0.45);
  transition: background 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}

.bx-nav[data-solid="true"] {
  background: rgba(255, 255, 255, 0.94);
  border-color: var(--bx-hairline);
  box-shadow: 0 12px 36px -16px rgba(15, 24, 34, 0.28);
}

.bx-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(0.15rem, 1vw, 0.5rem);
}

.bx-nav__item { position: relative; }

.bx-nav__link {
  display: inline-block;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color 180ms ease, background 180ms ease;
}

.bx-nav[data-solid="true"] .bx-nav__link { color: var(--bx-ink); }

.bx-nav__link:hover,
.bx-nav__item:hover > .bx-nav__link,
.bx-nav__item:focus-within > .bx-nav__link,
.bx-nav__link[aria-current="page"] {
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
}

.bx-nav[data-solid="true"] .bx-nav__link:hover,
.bx-nav[data-solid="true"] .bx-nav__item:hover > .bx-nav__link,
.bx-nav[data-solid="true"] .bx-nav__item:focus-within > .bx-nav__link,
.bx-nav[data-solid="true"] .bx-nav__link[aria-current="page"] {
  color: var(--bx-ink);
  background: rgba(15, 24, 34, 0.08);
}

/* Aufklappmenü unter einem Nav-Punkt */
.bx-nav__menu {
  position: absolute;
  top: calc(100% + 0.55rem);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  display: flex;
  flex-direction: column;
  min-width: 14rem;
  padding: 0.45rem;
  border-radius: 1rem;
  border: 1px solid var(--bx-hairline);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 18px 44px -18px rgba(15, 24, 34, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms;
}

.bx-nav__item:hover .bx-nav__menu,
.bx-nav__item:focus-within .bx-nav__menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.bx-nav__menu a {
  padding: 0.55rem 0.85rem;
  border-radius: 0.65rem;
  color: var(--bx-ink);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.bx-nav__menu a:hover { background: rgba(15, 24, 34, 0.07); color: var(--bx-blue); }

.bx-nav__menu a span.ext {
  color: var(--bx-muted);
  font-size: 0.75rem;
  margin-left: 0.35rem;
}

.bx-nav__cta {
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  border: 1px solid currentColor;
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color 200ms ease, background 200ms ease, border-color 200ms ease;
}

.bx-nav[data-solid="true"] .bx-nav__cta { color: var(--bx-ink); }

.bx-nav__cta:hover {
  border-color: var(--bx-red);
  color: #fff !important;
  background: var(--bx-red);
}

@media (max-width: 860px) {
  /* Logo kompakt, Pill rechts daneben — feste Reservierung, damit sich
     nichts überschneidet (Logo ≈ 3.2rem breit + Rand). */
  .bx-logo-corner { top: 0.72rem; left: 0.75rem; }
  .bx-logo-corner img { height: 1.75rem; width: auto; }
  .bx-nav {
    top: 0.55rem;
    left: auto;
    right: 0.55rem;
    transform: none;
    max-width: calc(100% - 4.9rem);
    overflow-x: auto;
    scrollbar-width: none;
  }
  .bx-nav::-webkit-scrollbar { display: none; }
  .bx-nav__link { padding: 0.42rem 0.55rem; font-size: 0.8rem; }
  .bx-nav__cta { padding: 0.42rem 0.7rem; font-size: 0.8rem; }
  .bx-nav__menu { display: none; }
}

/* ---------- Scroll-Scrub Film (dunkel) ---------- */

.scroll-scrub {
  position: relative;
  isolation: isolate;
  color: var(--bx-dark-ink);
  background: var(--bx-dark-bg);
}

.scroll-scrub__stage {
  position: sticky;
  top: 0;
  z-index: 0;
  width: 100%;
  height: 100dvh;
  overflow: hidden;
  background: var(--bx-dark-bg);
}

.scroll-scrub__media,
.scroll-scrub__layer,
.scroll-scrub__picture,
.scroll-scrub__poster,
.scroll-scrub__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.scroll-scrub__layer {
  margin: 0;
  overflow: hidden;
  opacity: 0;
  will-change: opacity;
}

.scroll-scrub__layer:first-child { opacity: 1; }

.scroll-scrub__poster,
.scroll-scrub__video {
  display: block;
  object-fit: cover;
  object-position: var(--ss-object-position, 50% 50%);
}

.scroll-scrub__video { z-index: 1; }

.scroll-scrub__layer[data-video-painted="true"] .scroll-scrub__poster {
  visibility: hidden;
}

.scroll-scrub__progress {
  position: absolute;
  z-index: 5;
  top: 0; right: 0; left: 0;
  height: 2px;
  background: rgba(237, 231, 219, 0.14);
  pointer-events: none;
}

.scroll-scrub__progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--bx-film-accent);
  transform: scaleX(0);
  transform-origin: left center;
}

/* Kapitel-Navigator: vertikale Fortschritts-Schiene mit Punkten rechts */
.scroll-scrub__route {
  position: absolute;
  z-index: 6;
  top: 50%;
  right: clamp(0.75rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  align-items: flex-end;
  pointer-events: auto;
  transform: translateY(-50%);
  padding-right: 14px;
}

/* Durchgehende Schiene hinter den Punkten */
.scroll-scrub__route::before {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 12px;
  right: 4px;
  width: 1.5px;
  background: linear-gradient(180deg, rgba(237,231,219,0.05), rgba(237,231,219,0.22), rgba(237,231,219,0.05));
  border-radius: 2px;
}

.scroll-scrub__route-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.7rem;
  min-height: 2rem;
  padding: 0.2rem 0;
  border: 0;
  color: var(--bx-dark-muted);
  background: transparent;
  font-family: var(--bx-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 180ms ease;
}

/* Label als dezente Chip, nur bei aktiv/hover deutlich sichtbar */
.scroll-scrub__route-button span {
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: rgba(12, 20, 29, 0);
  backdrop-filter: blur(0);
  opacity: 0.55;
  transform: translateX(4px);
  transition: opacity 180ms ease, transform 180ms ease, background 180ms ease;
}

/* Punkt auf der Schiene */
.scroll-scrub__route-button::after {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-right: -13px;
  border-radius: 50%;
  border: 1.5px solid rgba(237, 231, 219, 0.55);
  background: transparent;
  transition: all 180ms ease;
}

.scroll-scrub__route-button:hover { color: var(--bx-dark-ink); }
.scroll-scrub__route-button:hover span {
  opacity: 1;
  transform: translateX(0);
  background: rgba(12, 20, 29, 0.45);
}
.scroll-scrub__route-button:hover::after {
  border-color: var(--bx-dark-ink);
  transform: scale(1.15);
}

.scroll-scrub__route-button[aria-current="step"] { color: #fff; }
.scroll-scrub__route-button[aria-current="step"] span {
  opacity: 1;
  transform: translateX(0);
  background: rgba(12, 20, 29, 0.55);
  font-weight: 500;
}
.scroll-scrub__route-button[aria-current="step"]::after {
  border-color: var(--bx-film-accent);
  background: var(--bx-film-accent);
  box-shadow: 0 0 0 4px rgba(224, 62, 45, 0.22);
  transform: scale(1.2);
}

.scroll-scrub__route-button:focus-visible {
  outline: 2px solid var(--bx-film-accent);
  outline-offset: 3px;
  border-radius: 999px;
}

.scroll-scrub__story {
  position: relative;
  z-index: 3;
  margin-top: -100dvh;
  pointer-events: none;
}

.scroll-scrub__chapter { position: relative; }

.scroll-scrub__chapter-pin {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  min-height: 100dvh;
  padding: clamp(5rem, 9vw, 8rem) clamp(1.25rem, 6vw, 6rem);
  pointer-events: none;
}

.scroll-scrub__chapter[data-align="right"] .scroll-scrub__chapter-pin {
  justify-content: flex-end;
}

.scroll-scrub__chapter[data-align="center"] .scroll-scrub__chapter-pin {
  justify-content: center;
  text-align: center;
}

.scroll-scrub__chapter[data-align="center"] .scroll-scrub__tags,
.scroll-scrub__chapter[data-align="center"] .scroll-scrub__actions {
  justify-content: center;
}

.scroll-scrub__chapter[data-align="center"] .scroll-scrub__title,
.scroll-scrub__chapter[data-align="center"] .scroll-scrub__body {
  margin-inline: auto;
}

#modell.scroll-scrub__chapter .scroll-scrub__chapter-pin {
  align-items: flex-end;
  padding-bottom: clamp(3.5rem, 9vh, 6rem);
}

.scroll-scrub__copy {
  position: relative;
  width: min(40rem, 48vw);
  pointer-events: auto;
}

.scroll-scrub__copy::before {
  position: absolute;
  z-index: -1;
  inset: -3rem -5rem;
  content: "";
  background: radial-gradient(
    ellipse at center,
    rgba(12, 20, 29, 0.88) 0%,
    rgba(12, 20, 29, 0.58) 52%,
    transparent 76%
  );
  pointer-events: none;
}

.scroll-scrub__title {
  max-width: 14ch;
  margin: 0;
  color: var(--bx-dark-ink);
  font-size: clamp(2.5rem, 5.4vw, 5.6rem);
  font-weight: 700;
  line-height: 0.97;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.scroll-scrub__body {
  max-width: 44ch;
  margin: 1.4rem 0 0;
  color: var(--bx-dark-muted);
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  line-height: 1.55;
}

.scroll-scrub__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.scroll-scrub__tags li {
  padding: 0.42rem 0.7rem;
  border: 1px solid rgba(237, 231, 219, 0.22);
  color: var(--bx-dark-ink);
  font-family: var(--bx-font-mono);
  font-size: 0.78rem;
}

.scroll-scrub__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 1.8rem;
}

/* Hero-Sprungleiste (Kapitel-Chips) */
.bx-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1.6rem;
}

.bx-chips button,
.bx-chips a {
  padding: 0.45rem 0.85rem;
  border: 1px solid rgba(237, 231, 219, 0.28);
  color: var(--bx-dark-ink);
  background: rgba(12, 20, 29, 0.35);
  font-family: var(--bx-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease;
}

.bx-chips a { text-decoration: none; display: inline-block; }

.bx-chips button:hover,
.bx-chips a:hover {
  border-color: var(--bx-film-accent);
  background: rgba(224, 62, 45, 0.18);
}

/* CTA (dunkel): Rahmen füllt sich von unten */
.bx-cta-frame {
  position: relative;
  z-index: 0;
  display: inline-block;
  padding: 0.7rem 1.35rem;
  overflow: hidden;
  border: 1px solid rgba(237, 231, 219, 0.45);
  color: var(--bx-dark-ink);
  background: transparent;
  font-family: var(--bx-font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: color 220ms ease, border-color 220ms ease;
}

.bx-cta-frame::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  background: var(--bx-film-accent);
  transform: scaleY(0);
  transform-origin: bottom center;
  transition: transform 240ms ease;
}

.bx-cta-frame:hover, .bx-cta-frame:focus-visible { border-color: var(--bx-film-accent); }
.bx-cta-frame:hover::before, .bx-cta-frame:focus-visible::before { transform: scaleY(1); }
.bx-cta-frame:active { transform: scale(0.98); }

/* Kapitel-Link (mono, Pfeil wandert) */
.bx-chapter-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding-bottom: 0.3rem;
  color: var(--bx-dark-ink);
  font-family: var(--bx-font-mono);
  font-size: 0.85rem;
  text-decoration: none;
}

.bx-chapter-link::before {
  position: absolute;
  right: 0; bottom: 0; left: 0;
  height: 1px;
  content: "";
  background: rgba(237, 231, 219, 0.35);
}

.bx-chapter-link .arrow { transition: transform 220ms ease; }
.bx-chapter-link:hover .arrow { transform: translateX(0.4rem); }
.bx-chapter-link:hover { color: var(--bx-film-accent); }

/* ---------- Heller Seitenteil ---------- */

.bx-light { background: var(--bx-bg); color: var(--bx-ink); }

.bx-section { padding: clamp(4.5rem, 11vh, 8rem) 0; }

.bx-eyebrow {
  margin: 0 0 1rem;
  color: var(--bx-red);
  font-family: var(--bx-font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.bx-h2 {
  max-width: 20ch;
  margin: 0 0 1.2rem;
  font-size: clamp(2rem, 4.4vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.02;
  text-wrap: balance;
}

.bx-lead {
  max-width: 58ch;
  margin: 0;
  color: var(--bx-muted);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.6;
}

/* Reveal: nur transform, screenshot-sicher */
.bx-reveal {
  transform: translateY(22px);
  transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.bx-reveal.is-in { transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .bx-reveal { transform: none; transition: none; }
}

/* Herkunft (Ravensburg) */
.bx-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.bx-origin__video {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 24px 60px -24px rgba(15, 24, 34, 0.45);
}

.bx-origin__video video, .bx-origin__video img { display: block; width: 100%; }

@media (max-width: 860px) {
  .bx-origin__grid { grid-template-columns: 1fr; }
}

/* Teaser-Karten */
.bx-teasers {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(2rem, 5vh, 3.5rem);
}

.bx-teaser {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--bx-hairline);
  border-radius: 8px;
  background: var(--bx-bg);
  transition: box-shadow 260ms ease, transform 260ms ease;
}

.bx-teaser:hover {
  box-shadow: 0 30px 70px -30px rgba(15, 24, 34, 0.35);
  transform: translateY(-3px);
}

.bx-teaser__media { position: relative; min-height: 15rem; }

.bx-teaser__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bx-teaser__body {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  justify-content: center;
  padding: clamp(1.5rem, 3.5vw, 2.75rem);
}

.bx-teaser__kicker {
  margin: 0;
  color: var(--bx-blue);
  font-family: var(--bx-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bx-teaser__title {
  margin: 0;
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.bx-teaser__text {
  margin: 0;
  color: var(--bx-muted);
  line-height: 1.55;
}

.bx-teaser__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bx-teaser__tags li {
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--bx-hairline);
  color: var(--bx-ink);
  background: var(--bx-surface);
  font-family: var(--bx-font-mono);
  font-size: 0.72rem;
}

.bx-teaser__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.4rem;
  color: var(--bx-blue);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}

.bx-teaser__cta .arrow { transition: transform 200ms ease; }
.bx-teaser:hover .bx-teaser__cta .arrow { transform: translateX(0.35rem); }

.bx-teaser:nth-child(even) .bx-teaser__media { order: 2; }

@media (max-width: 860px) {
  .bx-teaser { grid-template-columns: 1fr; }
  .bx-teaser:nth-child(even) .bx-teaser__media { order: 0; }
  .bx-teaser__media { min-height: 12rem; }
}

/* Partner */
.bx-partner { background: var(--bx-surface); }

.bx-partner__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  margin-top: clamp(2rem, 5vh, 3rem);
}

.bx-partner__video {
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 24px 60px -24px rgba(15, 24, 34, 0.4);
}

.bx-partner__video video, .bx-partner__video img { display: block; width: 100%; }

.bx-partner__card {
  padding: 1.5rem 0;
  border-top: 1px solid var(--bx-hairline);
}

.bx-partner__card:first-of-type { border-top: 0; padding-top: 0; }

.bx-partner__card img {
  height: 2.6rem;
  width: auto;
  max-width: 14rem;
  object-fit: contain;
  margin-bottom: 0.9rem;
}

.bx-partner__card p {
  margin: 0;
  color: var(--bx-muted);
  line-height: 1.6;
  font-size: 0.98rem;
}

@media (max-width: 860px) {
  .bx-partner__grid { grid-template-columns: 1fr; }
}

/* Referenzen / Branchen-Band */
.bx-band {
  overflow: hidden;
  padding: 1.6rem 0;
  border-top: 1px solid var(--bx-hairline);
  border-bottom: 1px solid var(--bx-hairline);
}

.bx-band__track {
  display: flex;
  gap: 3.5rem;
  width: max-content;
  animation: bx-band-scroll 36s linear infinite;
}

.bx-band__track span {
  color: var(--bx-muted);
  font-family: var(--bx-font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.bx-band__track span::before {
  margin-right: 3.5rem;
  color: var(--bx-red);
  content: "×";
}

@keyframes bx-band-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .bx-band__track { animation: none; flex-wrap: wrap; width: auto; }
}

/* Kontakt (hell) */
.bx-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
  margin-top: clamp(2rem, 5vh, 3rem);
}

.bx-field { display: block; margin-bottom: 1.3rem; }

.bx-field__label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--bx-ink);
  font-family: var(--bx-font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bx-field__input {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--bx-hairline);
  border-radius: 4px;
  color: var(--bx-ink);
  background: var(--bx-bg);
  font: inherit;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.bx-field__input:focus {
  border-color: var(--bx-blue);
  box-shadow: 0 0 0 3px rgba(30, 92, 140, 0.14);
  outline: none;
}

.bx-field__error { margin: 0.4rem 0 0; color: var(--bx-red); font-size: 0.85rem; }

.bx-submit {
  position: relative;
  z-index: 0;
  display: inline-block;
  padding: 0.75rem 1.5rem;
  overflow: hidden;
  border: 1px solid var(--bx-ink);
  border-radius: 4px;
  color: var(--bx-ink);
  background: transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: color 220ms ease, border-color 220ms ease;
}

.bx-submit::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  background: var(--bx-grad);
  transform: scaleY(0);
  transform-origin: bottom center;
  transition: transform 240ms ease;
}

.bx-submit:hover, .bx-submit:focus-visible { color: #fff; border-color: transparent; }
.bx-submit:hover::before, .bx-submit:focus-visible::before { transform: scaleY(1); }
.bx-submit:active { transform: scale(0.98); }
.bx-submit[disabled] { opacity: 0.6; cursor: default; }

.bx-contact__status { margin: 1rem 0 0; font-family: var(--bx-font-mono); font-size: 0.9rem; }
.bx-contact__status[data-tone="error"] { color: var(--bx-red); }

.bx-contact__aside {
  padding: 1.75rem;
  border: 1px solid var(--bx-hairline);
  border-radius: 8px;
  background: var(--bx-surface);
}

.bx-contact__aside h3 { margin: 0 0 1rem; font-size: 1.1rem; }
.bx-contact__aside p { margin: 0 0 0.6rem; color: var(--bx-muted); line-height: 1.55; }

.bx-contact__aside a {
  color: var(--bx-blue);
  font-family: var(--bx-font-mono);
  font-size: 0.92rem;
}

@media (max-width: 860px) {
  .bx-contact__grid { grid-template-columns: 1fr; }
}

/* ---------- Footer (dunkel, weißes Logo) ---------- */

.bx-footer {
  color: var(--bx-dark-muted);
  background: var(--bx-dark-bg);
  padding: clamp(3rem, 7vh, 5rem) 0 2rem;
}

.bx-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4rem);
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--bx-dark-hairline);
}

.bx-footer__brand img { width: 9.5rem; height: auto; margin-bottom: 1rem; }

.bx-footer__brand p { margin: 0; line-height: 1.6; font-size: 0.92rem; }

.bx-footer h4 {
  margin: 0 0 1rem;
  color: var(--bx-dark-ink);
  font-family: var(--bx-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bx-footer ul { margin: 0; padding: 0; list-style: none; }
.bx-footer li { margin-bottom: 0.55rem; }

.bx-footer a {
  color: var(--bx-dark-muted);
  font-size: 0.92rem;
  text-decoration: none;
  transition: color 160ms ease;
}

.bx-footer a:hover { color: var(--bx-dark-ink); }

.bx-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  padding-top: 1.5rem;
  font-family: var(--bx-font-mono);
  font-size: 0.76rem;
}

@media (max-width: 860px) {
  .bx-footer__grid { grid-template-columns: 1fr; }
}

/* ---------- Story-Seiten (Scrollytelling) ---------- */

.bx-story-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 86dvh;
  color: var(--bx-dark-ink);
  background: var(--bx-dark-bg);
  overflow: hidden;
}

.bx-story-hero__media,
.bx-story-hero__media video,
.bx-story-hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bx-story-hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12,20,29,0.92) 0%, rgba(12,20,29,0.35) 45%, rgba(12,20,29,0.15) 100%);
}

.bx-story-hero__copy {
  position: relative;
  z-index: 2;
  padding: clamp(4rem, 10vh, 7rem) 0 clamp(3rem, 8vh, 5rem);
}

.bx-story-hero__kicker {
  margin: 0 0 1rem;
  color: var(--bx-film-accent);
  font-family: var(--bx-font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.bx-story-hero__title {
  max-width: 15ch;
  margin: 0;
  font-size: clamp(2.4rem, 5.6vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 0.98;
  text-wrap: balance;
}

.bx-story-hero__sub {
  max-width: 50ch;
  margin: 1.4rem 0 0;
  color: var(--bx-dark-muted);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.6;
}

.bx-backlink {
  position: fixed;
  z-index: 70;
  top: 5rem;
  left: clamp(1rem, 3vw, 2.5rem);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--bx-hairline);
  border-radius: 999px;
  color: var(--bx-ink);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  font-family: var(--bx-font-mono);
  font-size: 0.76rem;
  text-decoration: none;
  box-shadow: 0 8px 24px -12px rgba(15, 24, 34, 0.35);
}

.bx-backlink:hover { border-color: var(--bx-blue); color: var(--bx-blue); }

.bx-scene { padding: clamp(4rem, 10vh, 7rem) 0; }
.bx-scene + .bx-scene { padding-top: 0; }

.bx-scene__num {
  margin: 0 0 0.8rem;
  color: var(--bx-blue);
  font-family: var(--bx-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

.bx-scene__title {
  max-width: 22ch;
  margin: 0 0 1rem;
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.bx-scene__text {
  max-width: 60ch;
  margin: 0 0 1.8rem;
  color: var(--bx-muted);
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  line-height: 1.65;
}

.bx-scene__media {
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 28px 70px -30px rgba(15, 24, 34, 0.45);
}

.bx-scene__media video, .bx-scene__media img { display: block; width: 100%; }

.bx-scene__caption {
  margin: 0.7rem 0 0;
  color: var(--bx-muted);
  font-family: var(--bx-font-mono);
  font-size: 0.78rem;
}

/* Gepinnte Wandschichten-Sequenz (story/energy, CSS/SVG) */
.bx-wall { position: relative; }

.bx-wall__pin {
  position: sticky;
  top: 4.25rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  min-height: calc(100dvh - 4.25rem);
}

.bx-wall__stage { position: relative; height: min(60dvh, 30rem); }

.bx-wall__layer {
  position: absolute;
  inset: 10% 20%;
  border-radius: 4px;
  box-shadow: 0 18px 50px -20px rgba(15, 24, 34, 0.4);
  transition: transform 600ms cubic-bezier(0.22, 1, 0.36, 1), opacity 600ms ease;
}

.bx-wall__badge {
  position: absolute;
  right: 8%;
  bottom: 4%;
  z-index: 5;
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  color: #fff;
  background: var(--bx-grad);
  font-family: var(--bx-font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  box-shadow: 0 14px 34px -14px rgba(30, 92, 140, 0.6);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.bx-wall[data-step="3"] .bx-wall__badge { opacity: 1; transform: translateY(0); }

.bx-wall__steps { display: grid; gap: 1.2rem; }

.bx-wall__step {
  padding: 1.1rem 1.3rem;
  border-left: 3px solid var(--bx-hairline);
  color: var(--bx-muted);
  transition: border-color 300ms ease, color 300ms ease;
}

.bx-wall__step h3 { margin: 0 0 0.4rem; font-size: 1.05rem; color: inherit; }
.bx-wall__step p { margin: 0; font-size: 0.95rem; line-height: 1.55; }

.bx-wall__step.is-active {
  border-color: var(--bx-red);
  color: var(--bx-ink);
}

@media (max-width: 860px) {
  .bx-wall__pin { grid-template-columns: 1fr; }
  .bx-wall__stage { height: 42dvh; }
}

/* Story-Ende: zwei Wege */
.bx-story-next {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: clamp(2rem, 5vh, 3rem);
  border: 1px solid var(--bx-hairline);
  border-radius: 8px;
  background: var(--bx-surface);
}

/* CTA hell: Eckklammern schließen sich */
.bx-cta-brackets-light {
  position: relative;
  display: inline-block;
  padding: 0.9rem 2rem;
  color: var(--bx-ink);
  font-family: var(--bx-font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  border: 0;
  background: transparent;
}

.bx-cta-brackets-light::before,
.bx-cta-brackets-light::after {
  position: absolute;
  width: 1rem;
  height: 1rem;
  content: "";
  border: 2px solid var(--bx-red);
  transition: transform 240ms ease;
}

.bx-cta-brackets-light::before { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.bx-cta-brackets-light::after { right: 0; bottom: 0; border-top: 0; border-left: 0; }
.bx-cta-brackets-light:hover::before { transform: translate(0.3rem, 0.3rem); }
.bx-cta-brackets-light:hover::after { transform: translate(-0.3rem, -0.3rem); }

/* ---------- Produktseiten ---------- */

.bx-video-embed {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 28px 70px -30px rgba(15, 24, 34, 0.45);
  background: var(--bx-dark-bg);
}

.bx-video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.bx-feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 1rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.bx-feature-list li {
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--bx-hairline);
  border-radius: 6px;
  background: var(--bx-bg);
  color: var(--bx-ink);
  line-height: 1.5;
  font-size: 0.95rem;
}

.bx-feature-list li strong { display: block; margin-bottom: 0.3rem; }

/* ---------- Impressum ---------- */

.bx-legal { max-width: 46rem; }
.bx-legal h1 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.03em; }
.bx-legal h2 { margin-top: 2.5rem; font-size: 1.4rem; letter-spacing: -0.02em; }
.bx-legal h3 { margin-top: 1.6rem; font-size: 1.05rem; }
.bx-legal p, .bx-legal li { color: var(--bx-muted); line-height: 1.7; }
.bx-legal strong { color: var(--bx-ink); }

/* ---------- Utilities ---------- */

.bx-skip {
  position: absolute;
  left: -999rem;
  top: 0;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: #fff;
  color: var(--bx-ink);
}

.bx-skip:focus { left: 1rem; top: 1rem; }

::selection { background: rgba(30, 92, 140, 0.25); }

/* Weiche Seitenübergänge (Teaser zu Story), progressiv: */
@view-transition { navigation: auto; }

/* ---------- V3: Logo mit animiertem Rot-Blau-Gradient ---------- */

.bx-logo-mark {
  display: inline-block;
  width: 2.7rem;
  height: 2.7rem;
  background: linear-gradient(135deg, #1e5c8c, #c42b4a, #1e5c8c);
  background-size: 300% 300%;
  animation: bx-grad-shift 6s ease-in-out infinite;
  -webkit-mask: url("/assets/img/logo-full.png") no-repeat center / contain;
  mask: url("/assets/img/logo-full.png") no-repeat center / contain;
}

.bx-footer .bx-logo-mark { width: 3.2rem; height: 3.2rem; }

@keyframes bx-grad-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@media (prefers-reduced-motion: reduce) {
  .bx-logo-mark { animation: none; }
}

/* ---------- Interaktive Info-Punkte (Hotspots) ---------- */

.bx-hotspots { position: relative; }

.bx-hotspots .hs {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 1.15rem;
  height: 1.15rem;
  padding: 0;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--bx-red);
  box-shadow: 0 0 0 4px rgba(196, 43, 74, 0.25);
  cursor: pointer;
  animation: bx-hs-pulse 2.2s ease-in-out infinite;
}

.bx-hotspots .hs--blue { background: var(--bx-blue); box-shadow: 0 0 0 4px rgba(31, 111, 235, 0.22); }
.bx-hotspots .hs--green { background: #2fa559; box-shadow: 0 0 0 4px rgba(47, 165, 89, 0.22); }
.bx-hotspots .hs--amber { background: #d6a406; box-shadow: 0 0 0 4px rgba(214, 164, 6, 0.22); }
.bx-hotspots .hs--green { animation: none; }
.bx-hotspots .hs--amber { animation: none; }

@keyframes bx-hs-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(196, 43, 74, 0.25); }
  50% { box-shadow: 0 0 0 9px rgba(196, 43, 74, 0.08); }
}

.bx-hotspots .hs > span {
  position: absolute;
  bottom: calc(100% + 0.6rem);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 11rem;
  max-width: 16rem;
  padding: 0.6rem 0.8rem;
  border-radius: 0.6rem;
  background: rgba(15, 24, 34, 0.94);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.45;
  text-align: left;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms;
  z-index: 5;
}

.bx-hotspots .hs > span strong { display: block; color: #fff; margin-bottom: 0.15rem; }

.bx-hotspots .hs:hover > span,
.bx-hotspots .hs:focus > span,
.bx-hotspots .hs.is-open > span {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ---------- V3: Fachsektionen ---------- */

.bx-deep { border-top: 1px solid var(--bx-hairline); }

.bx-deep__intro { max-width: 62ch; }

/* Problem/Lösung-Gegenüberstellung (wie LinkedIn-Visual rot/grün) */
.bx-ps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin: 2.2rem 0;
}

.bx-ps__col {
  padding: 1.6rem 1.7rem;
  border-radius: 8px;
  border: 1px solid var(--bx-hairline);
}

.bx-ps__col--problem { background: #fdf3f2; border-color: #f3d2ce; }
.bx-ps__col--solution { background: #f0f8f2; border-color: #cfe8d6; }

.bx-ps__col h3 {
  margin: 0 0 1rem;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
}

.bx-ps__col--problem h3 { color: #b3352a; }
.bx-ps__col--solution h3 { color: #1f7a3d; }

.bx-ps__col ul { margin: 0; padding: 0; list-style: none; }

.bx-ps__col li {
  position: relative;
  margin-bottom: 0.6rem;
  padding-left: 1.5rem;
  color: var(--bx-ink);
  font-size: 0.95rem;
  line-height: 1.5;
}

.bx-ps__col--problem li::before { content: "✕"; color: #b3352a; position: absolute; left: 0; font-weight: 700; }
.bx-ps__col--solution li::before { content: "✓"; color: #1f7a3d; position: absolute; left: 0; font-weight: 700; }

@media (max-width: 860px) { .bx-ps { grid-template-columns: 1fr; } }

/* Text+Medium-Splits */
.bx-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: center;
  margin: 2.5rem 0;
}

.bx-split--rev > :first-child { order: 2; }

.bx-split h3 { margin: 0 0 0.7rem; font-size: clamp(1.2rem, 2vw, 1.5rem); letter-spacing: -0.02em; }
.bx-split p { margin: 0 0 0.8rem; color: var(--bx-muted); line-height: 1.6; font-size: 0.98rem; }

@media (max-width: 860px) {
  .bx-split { grid-template-columns: 1fr; }
  .bx-split--rev > :first-child { order: 0; }
}

/* Checklisten */
.bx-checks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.55rem 1.5rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.bx-checks li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--bx-ink);
  font-size: 0.94rem;
  line-height: 1.5;
}

.bx-checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--bx-blue);
  font-weight: 700;
}

/* Kundenstimmen */
.bx-quote {
  padding: 1.7rem 1.9rem;
  border-left: 3px solid var(--bx-blue);
  border-radius: 0 8px 8px 0;
  background: var(--bx-surface);
  margin: 0 0 1.25rem;
}

.bx-quote p { margin: 0 0 0.7rem; color: var(--bx-ink); line-height: 1.65; font-size: 0.97rem; }
.bx-quote footer { color: var(--bx-muted); font-family: var(--bx-font-mono); font-size: 0.78rem; }
.bx-quote .stars { color: #e8a115; letter-spacing: 0.15em; margin-bottom: 0.6rem; display: block; }

/* GBIS-Schrittfolge */
.bx-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1rem; margin: 1.6rem 0 0; padding: 0; list-style: none; counter-reset: bxstep; }

.bx-steps li {
  counter-increment: bxstep;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--bx-hairline);
  border-radius: 8px;
  background: var(--bx-bg);
  color: var(--bx-muted);
  font-size: 0.93rem;
  line-height: 1.55;
}

.bx-steps li::before {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--bx-blue);
  content: counter(bxstep, decimal-leading-zero);
  font-family: var(--bx-font-mono);
  font-weight: 700;
}

.bx-steps li strong { color: var(--bx-ink); display: block; margin-bottom: 0.25rem; }

/* Philosophie-Kurve (dumm/lieblos/genial einfach) */
.bx-philo {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1rem;
  margin: 2rem 0 0;
}

.bx-philo__card {
  padding: 1.4rem 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--bx-hairline);
}

.bx-philo__card h3 { margin: 0 0 0.5rem; font-size: 0.95rem; letter-spacing: 0.06em; text-transform: uppercase; font-family: var(--bx-font-mono); }
.bx-philo__card p { margin: 0; color: var(--bx-muted); font-size: 0.93rem; line-height: 1.55; }

.bx-philo__card--red h3 { color: #b3352a; }
.bx-philo__card--orange h3 { color: #d07a1f; }
.bx-philo__card--green { border-color: #cfe8d6; background: #f0f8f2; }
.bx-philo__card--green h3 { color: #1f7a3d; }

/* ---------- V5: Push/Pop-Seitenübergänge (Shared Axis X) ---------- */

@media (prefers-reduced-motion: no-preference) {
  :root[data-vt-dir="push"]::view-transition-old(root) {
    animation: bx-out-left 450ms cubic-bezier(0.22, 0.8, 0.24, 1) both;
  }
  :root[data-vt-dir="push"]::view-transition-new(root) {
    animation: bx-in-right 450ms cubic-bezier(0.22, 0.8, 0.24, 1) both;
  }
  :root[data-vt-dir="pop"]::view-transition-old(root) {
    animation: bx-out-right 450ms cubic-bezier(0.22, 0.8, 0.24, 1) both;
  }
  :root[data-vt-dir="pop"]::view-transition-new(root) {
    animation: bx-in-left 450ms cubic-bezier(0.22, 0.8, 0.24, 1) both;
  }
}

@keyframes bx-out-left { to { transform: translateX(-28vw); opacity: 0.25; } }
@keyframes bx-in-right { from { transform: translateX(100vw); } }
@keyframes bx-out-right { to { transform: translateX(100vw); } }
@keyframes bx-in-left { from { transform: translateX(-28vw); opacity: 0.25; } }

/* ---------- V5: Nebenseiten-Bausteine ---------- */

.bx-fact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.bx-fact li {
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--bx-hairline);
  border-radius: 8px;
  background: var(--bx-surface);
  color: var(--bx-ink);
  font-size: 0.95rem;
  line-height: 1.45;
}

.bx-fact li strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--bx-blue);
  font-family: var(--bx-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Marker-Punkte auf dem Problem-Bild */
.bx-marked { position: relative; }

.bx-marked .dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bx-red);
  box-shadow: 0 0 0 4px rgba(196, 43, 74, 0.25);
  animation: bx-pulse 1.8s ease-in-out infinite;
}

@keyframes bx-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(196, 43, 74, 0.25); }
  50% { box-shadow: 0 0 0 12px rgba(196, 43, 74, 0.05); }
}

@media (prefers-reduced-motion: reduce) { .bx-marked .dot { animation: none; } }

/* Vorher/Nachher-Slider */
.bx-compare {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--bx-hairline);
}

.bx-compare img { display: block; width: 100%; }

.bx-compare__after {
  position: absolute;
  inset: 0;
  overflow: hidden;
  width: var(--pos, 50%);
}

.bx-compare__after img {
  position: absolute;
  inset: 0;
  height: 100%;
  width: auto;
  max-width: none;
}

.bx-compare__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos, 50%);
  width: 3px;
  background: var(--bx-red);
  pointer-events: none;
}

.bx-compare input[type="range"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}

.bx-compare__labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.6rem;
  color: var(--bx-muted);
  font-family: var(--bx-font-mono);
  font-size: 0.76rem;
}

/* Großer Claim */
.bx-claim {
  margin: 0;
  font-size: clamp(1.9rem, 4.6vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  text-wrap: balance;
  background: var(--bx-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Weiter-in-der-Story-Block */
.bx-continue {
  display: block;
  padding: clamp(2rem, 5vh, 3rem);
  border: 1px solid var(--bx-hairline);
  border-radius: 8px;
  background: var(--bx-surface);
  color: var(--bx-ink);
  text-decoration: none;
  transition: box-shadow 240ms ease, transform 240ms ease;
}

.bx-continue:hover { box-shadow: 0 24px 60px -28px rgba(15,24,34,0.35); transform: translateY(-2px); }
.bx-continue .small { color: var(--bx-muted); font-family: var(--bx-font-mono); font-size: 0.78rem; }
.bx-continue .big { display: block; margin-top: 0.4rem; font-size: clamp(1.3rem, 2.6vw, 1.9rem); font-weight: 700; letter-spacing: -0.02em; }


/* ---------- V6: Mobile-Zentrierung der Filmkapitel ---------- */

@media (max-width: 860px) {
  .scroll-scrub__chapter-pin,
  .scroll-scrub__chapter[data-align="right"] .scroll-scrub__chapter-pin,
  .scroll-scrub__chapter[data-align="center"] .scroll-scrub__chapter-pin {
    align-items: flex-end;
    justify-content: center;
    padding: 6rem max(1rem, env(safe-area-inset-right))
      calc(4.5rem + env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
    text-align: center;
  }

  .scroll-scrub__copy { width: min(100%, 34rem); }

  .scroll-scrub__copy::before {
    inset: -2.5rem -1.5rem;
    background: linear-gradient(to top, rgba(12,20,29,0.92) 0%, rgba(12,20,29,0.65) 55%, transparent 100%);
  }

  .scroll-scrub__title { max-width: 100%; margin-inline: auto; font-size: clamp(2rem, 9vw, 3.4rem); }
  .scroll-scrub__body { margin-inline: auto; }
  .scroll-scrub__tags, .scroll-scrub__actions { justify-content: center; }

  .scroll-scrub__route {
    top: auto;
    bottom: calc(0.6rem + env(safe-area-inset-bottom));
    right: max(0.75rem, env(safe-area-inset-right));
    left: max(0.75rem, env(safe-area-inset-left));
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    transform: none;
    padding-right: 0;
  }
  .scroll-scrub__route::before { display: none; }

  .scroll-scrub__route-button { flex: 0 0 auto; min-height: 2.6rem; padding: 0.35rem 0.35rem; }
  .scroll-scrub__route-button::after { display: none; }
  .scroll-scrub__route-button span {
    opacity: 0.8;
    transform: none;
    background: rgba(12, 20, 29, 0.5);
  }
  .scroll-scrub__route-button[aria-current="step"] span { background: rgba(224, 62, 45, 0.55); }

  .bx-nav { padding: 0.4rem 0.5rem; }
}

/* ---------- V8: Kunden-Logo-Slider ---------- */
.bx-logos { margin-top: 2.5rem; }
.bx-logos__label {
  text-align: center;
  font-family: var(--bx-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bx-muted);
  margin-bottom: 1.4rem;
}
.bx-logo-band {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.bx-logo-band__track {
  display: flex;
  align-items: center;
  gap: clamp(2.2rem, 5vw, 4rem);
  width: max-content;
  animation: bx-logo-scroll 42s linear infinite;
}
.bx-logo-band:hover .bx-logo-band__track { animation-play-state: paused; }
.bx-logo-band__track img {
  height: clamp(2rem, 4.5vw, 2.9rem);
  width: auto;
  filter: grayscale(1);
  opacity: 0.62;
  transition: filter 200ms ease, opacity 200ms ease;
}
.bx-logo-band__track img:hover { filter: grayscale(0); opacity: 1; }
@keyframes bx-logo-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .bx-logo-band__track { animation: none; flex-wrap: wrap; width: auto; justify-content: center; }
  .bx-logo-band { -webkit-mask-image: none; mask-image: none; }
}

/* ---------- V8: Angebot-Hervorhebung ---------- */
.bx-offer {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.5rem;
  align-items: center;
  margin: 2.5rem 0;
  padding: clamp(1.6rem, 4vw, 2.6rem);
  border-radius: 18px;
  color: #fff;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(196,43,74,0.5), transparent 55%),
    linear-gradient(135deg, #133a57 0%, #1e5c8c 60%, #2a6ea0 100%);
  box-shadow: 0 24px 60px -28px rgba(15,24,34,0.6);
}
.bx-offer__eyebrow {
  font-family: var(--bx-font-mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; opacity: 0.85; margin: 0 0 0.6rem;
}
.bx-offer h3 { margin: 0 0 0.7rem; font-size: clamp(1.4rem, 3vw, 2rem); letter-spacing: -0.02em; line-height: 1.12; }
.bx-offer p { margin: 0; color: rgba(255,255,255,0.9); line-height: 1.6; }
.bx-offer__actions { display: flex; flex-direction: column; gap: 0.7rem; align-items: stretch; }
.bx-offer__btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.95rem 1.4rem; border-radius: 999px; font-weight: 600; font-size: 1rem;
  text-decoration: none; text-align: center;
  background: #fff; color: var(--bx-ink);
  transition: transform 160ms ease, box-shadow 160ms ease;
}
.bx-offer__btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -14px rgba(0,0,0,0.4); }
.bx-offer__btn--ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.55); }
.bx-offer__btn--ghost:hover { background: rgba(255,255,255,0.12); }
.bx-offer__note { font-size: 0.8rem; opacity: 0.8; text-align: center; }
@media (max-width: 760px) { .bx-offer { grid-template-columns: 1fr; } }

/* ---------- V8: Referenzprojekt-Teaser (Hauptseite) ---------- */
.bx-refcard {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 0;
  border-radius: 16px; overflow: hidden; border: 1px solid var(--bx-hairline);
  background: var(--bx-surface); box-shadow: 0 18px 44px -26px rgba(15,24,34,0.35);
  margin-top: 1.5rem;
}
.bx-refcard__media { position: relative; min-height: 260px; background: #0c141d; }
.bx-refcard__media video, .bx-refcard__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bx-refcard__body { padding: clamp(1.5rem, 3.5vw, 2.4rem); }
.bx-refcard__body .bx-eyebrow { margin-top: 0; }
.bx-refcard__body h3 { margin: 0.3rem 0 0.7rem; font-size: clamp(1.3rem, 2.6vw, 1.8rem); letter-spacing: -0.02em; }
.bx-refcard__body p { color: var(--bx-muted); line-height: 1.6; margin: 0 0 1.2rem; }
@media (max-width: 760px) { .bx-refcard { grid-template-columns: 1fr; } .bx-refcard__media { min-height: 200px; } }

/* ---------- V9: openworld-Portalübergang ---------- */
.bx-portal {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: #0c141d;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 260ms ease, visibility 260ms;
}
.bx-portal.is-on {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.bx-portal video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  transition: transform 3s ease-in;
}
.bx-portal.is-on video { transform: scale(1); }
.bx-portal[data-dir="out"] video { transform: scale(1); transition: transform 3s ease-out; }
.bx-portal[data-dir="out"].is-on video { transform: scale(1.06); }
.bx-portal__scrim {
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 120% at 50% 50%, transparent 55%, rgba(12,20,29,0.55) 100%);
  pointer-events: none;
}

/* Aufblenden beim Ankommen auf der Zielseite */
.bx-portal-arrive {
  position: fixed;
  inset: 0;
  z-index: 99998;
  background: #0c141d;
  opacity: 1;
  pointer-events: none;
  transition: opacity 600ms ease;
}
.bx-portal-arrive.is-off { opacity: 0; }

@media (prefers-reduced-motion: reduce) {
  .bx-portal, .bx-portal-arrive { display: none !important; }
}

/* ---------- V9: Webseiten-Galerie (Digital-Werbung) ---------- */
.bx-webgallery {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(15rem, 20rem);
  gap: 1.3rem;
  overflow-x: auto;
  padding: 1.6rem 0.2rem 1rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.bx-webcard {
  margin: 0;
  scroll-snap-align: start;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--bx-hairline);
  box-shadow: 0 16px 40px -24px rgba(15, 24, 34, 0.4);
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.bx-webcard:hover { transform: translateY(-4px); box-shadow: 0 24px 50px -24px rgba(15, 24, 34, 0.5); }
.bx-webcard__bar {
  display: flex; gap: 0.35rem; align-items: center;
  padding: 0.6rem 0.8rem; background: #eef1f5; border-bottom: 1px solid var(--bx-hairline);
}
.bx-webcard__bar span { width: 0.6rem; height: 0.6rem; border-radius: 50%; background: #c9d2dc; }
.bx-webcard__bar span:first-child { background: #e5837f; }
.bx-webcard__bar span:nth-child(2) { background: #e6c169; }
.bx-webcard__bar span:nth-child(3) { background: #86c98b; }
.bx-webcard__shot { aspect-ratio: 16 / 10; overflow: hidden; background: #0c141d; }
.bx-webcard__shot img,
.bx-webcard__shot video { width: 100%; height: 100%; object-fit: cover; display: block; }
.bx-webcard figcaption {
  padding: 0.8rem 0.95rem; font-weight: 600; font-size: 0.95rem; color: var(--bx-ink);
}

/* ---------- V9: hellere Sektionen aufwerten ---------- */
.bx-light {
  background:
    radial-gradient(60% 50% at 100% 0%, rgba(30, 92, 140, 0.05), transparent 60%),
    radial-gradient(50% 40% at 0% 30%, rgba(196, 43, 74, 0.035), transparent 60%),
    var(--bx-bg);
}
.bx-section.bx-deep { position: relative; }
.bx-deep .bx-eyebrow {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: rgba(30, 92, 140, 0.08);
  color: var(--bx-blue);
}
/* Karten-Look für Split-Blöcke in hellen Sektionen */
.bx-deep .bx-split { gap: clamp(1.5rem, 4vw, 3rem); }
.bx-deep .bx-checks li {
  position: relative;
  padding: 0.55rem 0.6rem 0.55rem 1.9rem;
  border-radius: 8px;
  background: var(--bx-surface);
  border: 1px solid var(--bx-hairline);
  margin-bottom: 0.5rem;
}
.bx-deep .bx-checks li::before {
  content: "✓";
  position: absolute; left: 0.7rem; top: 0.55rem;
  color: var(--bx-blue); font-weight: 700;
}

/* ---------- V9: U-Wert Schicht-Diagramm (deterministische Animation) ---------- */
.bx-wallanim {
  --gap: 0px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap);
  min-height: 300px;
  padding: 2rem 1rem 3.2rem;
  border-radius: 14px;
  background: var(--bx-surface);
  border: 1px solid var(--bx-hairline);
  overflow: hidden;
  animation: bx-wall-cycle 7s ease-in-out infinite;
}
@keyframes bx-wall-cycle {
  0%, 12%   { --gap: 0px; }
  32%, 62%  { --gap: 26px; }
  82%, 100% { --gap: 0px; }
}
.bx-wallanim__layer {
  position: relative;
  width: 34px;
  height: 200px;
  border: 1px solid rgba(15, 24, 34, 0.25);
  border-radius: 3px;
}
.bx-wallanim__layer[data-l="aussen"]  { background: repeating-linear-gradient(45deg, #c8623f, #c8623f 6px, #b9542f 6px, #b9542f 12px); }
.bx-wallanim__layer[data-l="luft"]    { width: 14px; background: repeating-linear-gradient(0deg, #cfe0ec, #cfe0ec 5px, #eaf2f8 5px, #eaf2f8 10px); }
.bx-wallanim__layer[data-l="daemmung"]{ width: 58px; background: repeating-linear-gradient(45deg, #e7b53a, #e7b53a 5px, #f0c65e 5px, #f0c65e 10px); }
.bx-wallanim__layer[data-l="innen"]   { background: #b9c2cc; }
/* Label erscheint nur im getrennten Zustand */
.bx-wallanim__layer span {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-family: var(--bx-font-mono);
  font-size: 0.62rem;
  color: var(--bx-muted);
  opacity: 0;
  transition: opacity 400ms ease;
}
.bx-wallanim[style*="26"] .bx-wallanim__layer span { opacity: 1; }
/* U-Wert-Tag, sichtbar im zusammengeführten Zustand */
.bx-wallanim__tag {
  position: absolute;
  bottom: 0.9rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: var(--bx-blue);
  color: #fff;
  font-family: var(--bx-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  box-shadow: 0 8px 20px -10px rgba(30, 92, 140, 0.6);
}
/* JS steuert den getrennten Zustand über eine Klasse (Fallback: Animation) */
.bx-wallanim.is-split { animation: none; --gap: 26px; }
.bx-wallanim.is-split .bx-wallanim__layer span { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .bx-wallanim { animation: none; --gap: 26px; }
  .bx-wallanim__layer span { opacity: 1; }
}

/* ---------- V10: Kapiteltexte an das aktive Leg koppeln ----------
   Sobald JS läuft (data-js), erscheint der Text eines Kapitels erst,
   wenn sein Leg das dominante ist — so kommen die Texte exakt zum Bild. */
.scroll-scrub[data-js="1"] .scroll-scrub__chapter .scroll-scrub__copy {
  opacity: 0;
  transition: opacity 480ms ease;
}
.scroll-scrub[data-js="1"] .scroll-scrub__chapter[data-active="true"] .scroll-scrub__copy {
  opacity: 1;
}
@media (prefers-reduced-motion: reduce) {
  .scroll-scrub[data-js="1"] .scroll-scrub__chapter .scroll-scrub__copy { opacity: 1; }
}

/* V17: Sektionsnummern (01/02/…) auf Nutzerwunsch komplett ausblenden —
   die Reihenfolge traegt hier keine Information. Markup + CMS-Keys bleiben. */
.bx-scene__num { display: none; }

/* ---------- V13: Nebenseiten-Scroll-Hero + Text-Steps ----------
   Der "Mehr erfahren"-Clip läuft auf der Nebenseite als Scroll-Hero ab
   data-scrub-start weiter; mehrere Copies mit data-at wechseln sich
   während des Scrubbens ab (vertiefende Texte). */
.scroll-scrub--hero .scroll-scrub__chapter-pin {
  display: grid;
  align-items: center;
  justify-items: start;
}
.scroll-scrub--hero .scroll-scrub__chapter[data-align="right"] .scroll-scrub__chapter-pin {
  justify-items: end;
}
.scroll-scrub--hero .scroll-scrub__chapter[data-align="center"] .scroll-scrub__chapter-pin {
  justify-items: center;
}
.scroll-scrub--hero .scroll-scrub__copy { grid-area: 1 / 1; }

.scroll-scrub__copy[data-at] {
  transition: opacity 480ms ease, transform 480ms ease;
  transform: translateY(14px);
}
.scroll-scrub__copy[data-at][data-show="true"] { transform: none; }
.scroll-scrub[data-js="1"] .scroll-scrub__chapter .scroll-scrub__copy[data-at]:not([data-show="true"]) {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 860px) {
  .scroll-scrub--hero .scroll-scrub__chapter-pin { justify-items: center; }
}
@media (prefers-reduced-motion: reduce) {
  .scroll-scrub--hero .scroll-scrub__chapter-pin { gap: 2rem; align-content: center; }
  .scroll-scrub--hero .scroll-scrub__copy { grid-area: auto; transform: none; }
}
/* Ohne JS (kein data-js) fliessen die Steps untereinander statt zu stapeln. */
.scroll-scrub--hero:not([data-js="1"]) .scroll-scrub__chapter-pin { gap: 2rem; align-content: center; }
.scroll-scrub--hero:not([data-js="1"]) .scroll-scrub__copy { grid-area: auto; transform: none; }

/* ---------- V14: Kapiteltexte viewport-fixiert ----------
   Die Copies haengen nicht mehr am Sticky-Pin (der bei spaeten
   data-copy-at-Schwellen bereits nach oben rausschiebt), sondern stehen
   fest mittig im Viewport, solange ihr Kapitel aktiv ist. Der Hero der
   Hauptseite (#modell) behaelt seine Bodenverankerung. */
.scroll-scrub[data-js="1"] .scroll-scrub__chapter:not(#modell) .scroll-scrub__copy {
  position: fixed;
  top: 50%;
  left: clamp(1.25rem, 6vw, 6rem);
  transform: translateY(-50%);
  z-index: 4;
}
.scroll-scrub[data-js="1"] .scroll-scrub__chapter[data-align="right"]:not(#modell) .scroll-scrub__copy {
  left: auto;
  right: clamp(1.25rem, 6vw, 6rem);
}
.scroll-scrub[data-js="1"] .scroll-scrub__chapter[data-align="center"]:not(#modell) .scroll-scrub__copy {
  left: 50%;
  right: auto;
  transform: translate(-50%, -50%);
  text-align: center;
}
/* Unsichtbare (inaktive) Copies duerfen keine Klicks abfangen. */
.scroll-scrub[data-js="1"] .scroll-scrub__chapter:not([data-active="true"]) .scroll-scrub__copy {
  pointer-events: none;
}
/* Fixierte Copies gleiten nur per Opacity, nicht per Slide. */
.scroll-scrub[data-js="1"] .scroll-scrub__chapter:not(#modell) .scroll-scrub__copy[data-at] {
  transform: translateY(-50%);
}
.scroll-scrub[data-js="1"] .scroll-scrub__chapter[data-align="center"]:not(#modell) .scroll-scrub__copy[data-at] {
  transform: translate(-50%, -50%);
}

@media (max-width: 860px) {
  .scroll-scrub[data-js="1"] .scroll-scrub__chapter:not(#modell) .scroll-scrub__copy,
  .scroll-scrub[data-js="1"] .scroll-scrub__chapter[data-align="right"]:not(#modell) .scroll-scrub__copy,
  .scroll-scrub[data-js="1"] .scroll-scrub__chapter[data-align="center"]:not(#modell) .scroll-scrub__copy,
  .scroll-scrub[data-js="1"] .scroll-scrub__chapter:not(#modell) .scroll-scrub__copy[data-at] {
    top: auto;
    bottom: calc(4.5rem + env(safe-area-inset-bottom));
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: min(calc(100vw - 2rem), 34rem);
    text-align: center;
  }
}
@media (prefers-reduced-motion: reduce) {
  /* Reduced Motion: alle Copies sichtbar -> zurueck in den Fluss,
     sonst wuerden sie fixiert uebereinander liegen. */
  .scroll-scrub[data-js="1"] .scroll-scrub__chapter:not(#modell) .scroll-scrub__copy,
  .scroll-scrub[data-js="1"] .scroll-scrub__chapter[data-align="center"]:not(#modell) .scroll-scrub__copy {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    bottom: auto;
    transform: none;
    width: min(40rem, 48vw);
  }
}