/* ============================================================
   BAT DURO — Landingpage-Layer V2 (Kleusberg-Richtung)
   Dunkle Heros (reine Grau-/Schwarztöne), reduzierte Navi,
   Off-Canvas-Kacheln, Scrub-/Scrolly-Sektionen, LP-Breite 90vw.
   Patterns: design/sections/*.md
   ============================================================ */

/* ---------- LP-Basis ---------- */
.lp { background: var(--c-bg); }
.wrap-lp { width: var(--w-lp); margin-inline: auto; }
.lp .section { padding-block: clamp(72px, 9vw, 140px); }

/* Dunkle Sektionen (kein Blaustich!) */
.dark {
  background: var(--d-bg); color: var(--d-text);
}
.dark h1, .dark h2, .dark h3, .dark h4 { color: var(--d-text); }
.dark p { color: var(--d-muted); }
.dark p.lead, .dark .step p strong { color: #d9d9d9; }
.dark a:not(.btn) { color: #e8e8e8; }
.dark .section-mark { color: var(--d-muted); }
.dark hr { border-color: var(--d-line); }

/* Buttons auf dunkel */
.btn--pill-light { background: #fff; color: #111; }
.btn--pill-light:hover { background: #e8e8e8; color: #111; }
.btn--pill-outline { border-color: rgba(255,255,255,0.4); color: #fff; background: transparent; }
.btn--pill-outline:hover { background: #fff; color: #111; border-color: #fff; }
.btn--pill-dark { background: #161616; color: #fff; border-color: #161616; }
.btn--pill-dark:hover { background: #000; }

/* ============================================================
   LP-HERO (Video dunkel) + Scrub-Hero
   ============================================================ */
.lp-hero {
  position: relative; min-height: 96svh;
  display: grid; align-items: end;
  background: var(--d-bg); color: #fff; overflow: clip;
  padding: 96px 0 clamp(40px, 7vh, 80px);
}
/* Inner füllt die Herohöhe; Breadcrumb wird nach oben (knapp unter die Navi)
   gedrückt, Kicker + H1 bleiben unten. Ohne Breadcrumb bleibt alles unten. */
.lp-hero__inner { align-self: stretch; display: flex; flex-direction: column; justify-content: flex-end; }
.lp-hero .lp-hero__inner > .breadcrumb { margin-bottom: auto; }
.lp-hero__media, .lp-hero__media video, .lp-hero__media img, .lp-hero__media canvas {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
/* Dezenter Scroll-Parallax: Media-Ebene bekommt Headroom (JS translatet sie in main.js) */
@media (prefers-reduced-motion: no-preference) {
  .lp-hero:not(.scrub-hero) .lp-hero__media { top: -14%; height: 128%; will-change: transform; }
}
/* Scrub-Hero: Motiv nach rechts versetzt (Textspalte links bleibt frei);
   scale deckt den Versatz, damit links keine Kante aufreißt */
@media (min-width: 900px) {
  .scrub-hero .lp-hero__media img,
  .scrub-hero .lp-hero__media video,
  .scrub-hero .lp-hero__media canvas {
    transform: scale(1.2) translateX(8%);
  }
}
.lp-hero__media::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,10,10,0.55) 0%, rgba(10,10,10,0.15) 40%, rgba(10,10,10,0.78) 100%);
}
.lp-hero__inner { position: relative; width: var(--w-lp); margin-inline: auto; }
.lp-hero .kicker {
  font-family: var(--f-display); font-size: 0.875rem; letter-spacing: 0.02em;
  color: rgba(255,255,255,0.75); margin-bottom: 14px; display: flex; align-items: center; gap: 10px;
}
.lp-hero .kicker::before { content: ''; width: 26px; height: 1px; background: var(--c-red); }
.lp-hero h1 {
  color: #fff; margin: 0 0 12px;
  font-size: clamp(2.6rem, 6.5vw, 5.4rem);
  line-height: 0.98; letter-spacing: -0.02em;
  font-weight: 820; font-stretch: 108%;
  max-width: 18ch; text-wrap: balance;
}
.lp-hero .sub { font-size: clamp(1.05rem, 1.5vw, 1.3rem); font-weight: 300; color: rgba(255,255,255,0.85); max-width: 56ch; }
.lp-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.scroll-cue {
  position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%);
  color: rgba(255,255,255,0.7); font-size: 0.8125rem; font-family: var(--f-display);
  display: flex; flex-direction: column; align-items: center; gap: 4px; text-decoration: none;
}
.scroll-cue::after { content: '⌄'; font-size: 1.1rem; animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 0%,100% { transform: translateY(0); } 50% { transform: translateY(5px); } }
@media (prefers-reduced-motion: reduce) { .scroll-cue::after { animation: none; } }

/* Startseiten-Hero V3: Video-Band „Bauteil-Übergabe" (weißer Streifen im Video
   läuft nahtlos in den Seitenhintergrund; Bauteil überlagert die Kante = 3D-Effekt).
   Headline/Text/Buttons liegen als Overlay ÜBER dem Video (oben links, heller
   Scrim für Lesbarkeit; der untere Weißstreifen bleibt scrimfrei). */
.home-hero { position: relative; isolation: isolate; background: var(--c-bg); height: 92svh; overflow: hidden; }
.home-hero video {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center bottom;
}
/* Lokaler Scrim oben links hinter der Headline — Bauteil (Mitte/rechts) und
   unterer Weißstreifen bleiben unberührt, damit der 3D-Überstand erhalten bleibt. */
.home-hero::before {
  content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(120% 100% at -6% -10%,
    rgba(6,10,16,0.72) 0%, rgba(6,10,16,0.34) 34%, transparent 62%);
}
.home-hero__inner {
  position: absolute; inset: 0; z-index: 2;
  display: flex; align-items: flex-start;
  padding-top: clamp(160px, 24vh, 320px);
}
.home-hero__inner .wrap-lp { width: var(--w-lp); margin-inline: auto; }
.home-hero h1 {
  margin: 0 0 28px;
  font-size: clamp(2.7rem, 6.2vw, 5.4rem);
  line-height: 0.98; letter-spacing: -0.02em;
  font-weight: 820; font-stretch: 108%;
  max-width: 22ch; color: #fff;
  text-shadow: 0 2px 26px rgba(6,10,16,0.5);
}
/* Wechselnde Schluss-Phrase — alle Varianten stehen serverseitig im H1 (SEO/GEO),
   jede ergibt mit „Duroplast-Spritzguss …" einen sinnvollen Satz. */
.rot { display: inline-grid; vertical-align: top; }
.rot__plus { color: var(--c-red); font-size: 0.7em; vertical-align: 0.18em; }
.rot__item {
  grid-area: 1 / 1; opacity: 0; white-space: nowrap;
  animation: rotCycle 12s infinite; will-change: opacity, transform;
}
.rot__pre { display: none; } /* „nach " nur im HTML (SEO/Grammatik), optisch aus */
.rot__item:nth-child(1) { animation-delay: 0s; }
.rot__item:nth-child(2) { animation-delay: 4s; }
.rot__item:nth-child(3) { animation-delay: 8s; }
@keyframes rotCycle {
  0%        { opacity: 0; transform: translateY(0.42em); }
  4%        { opacity: 1; transform: translateY(0); }
  29%       { opacity: 1; transform: translateY(0); }
  33%, 100% { opacity: 0; transform: translateY(-0.36em); }
}
@media (prefers-reduced-motion: reduce) {
  .rot__item { animation: none; opacity: 0; }
  .rot__item:first-child { opacity: 1; }
}
.home-hero .lp-hero__actions { margin-top: 4px; }

/* Einleitungstext: wird per negativem margin-top ein Stück nach OBEN über den
   Video-Unterrand gezogen (viewport-basiert), damit Glow/Weiß den Videorand
   überlagern — kein harter Schnitt. padding-bottom 0 → KPIs rücken dicht heran. */
.home-lead {
  position: relative; z-index: 1;
  margin-top: calc(-1 * clamp(56px, 9vh, 150px));
  padding-block: clamp(64px, 8vw, 116px) 0;
  text-align: center;
}
/* Glow ankert UNTEN an der Sektion und wölbt sich von dort nach oben —
   eigene Drift-Keyframes mit kleinem y-Weg, damit er nicht weit übers
   Video hinaufreicht. */
.home-lead__glow {
  position: absolute; left: 50%; top: 100%; z-index: 0; pointer-events: none;
  width: max(74vw, 860px); aspect-ratio: 1 / 1; border-radius: 50%;
  --intro-glow: #0269b4;
  background: radial-gradient(circle, var(--intro-glow) 0%, transparent 62%);
  opacity: 0.16; filter: blur(42px); translate: -50% -50%;
  animation: introGlowColor 9s ease-in-out infinite alternate,
             homeGlowDrift 12s ease-in-out infinite alternate;
}
@keyframes homeGlowDrift {
  from { translate: -85% -44%; scale: 0.85; }
  to   { translate: -15% -56%; scale: 1.25; }
}
@media (prefers-reduced-motion: reduce) { .home-lead__glow { animation: none; translate: -50% -50%; } }
.home-lead__text {
  position: relative; z-index: 1; max-width: 62ch; margin-inline: auto;
  font-size: clamp(1.32rem, 2.1vw, 1.74rem); font-weight: 300;
  line-height: 1.55; color: var(--c-ink);
}
.home-lead__text strong { font-weight: 600; color: var(--c-blue-ink); }
/* KPIs direkt unter die Einleitung ziehen */
.home-lead + .section { padding-top: clamp(22px, 3vw, 44px); }

/* ============================================================
   WHUB — Wissens-Index (Startseite, „Duroplast: der Werkstoff …"):
   typografische Artikel-Liste mit Kreis-Pfeilen statt generischem
   Split + Freisteller; animierter Glow als Hintergrund.
   ============================================================ */
.whub { position: relative; overflow: clip; }
.whub__glow {
  position: absolute; left: 72%; top: 50%; z-index: 0; pointer-events: none;
  width: max(56vw, 640px); aspect-ratio: 1 / 1; border-radius: 50%;
  --intro-glow: #0269b4;
  background: radial-gradient(circle, var(--intro-glow) 0%, transparent 62%);
  opacity: 0.12; filter: blur(42px); translate: -50% -50%;
  animation: introGlowColor 9s ease-in-out infinite alternate,
             introGlowDrift 12s ease-in-out infinite alternate;
}
@media (prefers-reduced-motion: reduce) { .whub__glow { animation: none; translate: -50% -50%; } }
.whub__grid { position: relative; z-index: 1; display: grid; gap: clamp(28px, 4vw, 72px); align-items: center; }
@media (min-width: 960px) { .whub__grid { grid-template-columns: 1fr 1.15fr; } }
.whub__intro h2 { max-width: 22ch; }
.whub__intro p { max-width: 54ch; }
.whub__row {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding-block: clamp(18px, 2vw, 26px);
  border-top: 1px solid var(--c-line);
  text-decoration: none; color: var(--c-ink);
  transition: color var(--t-med);
}
.whub__row:last-child { border-bottom: 1px solid var(--c-line); }
.whub__label {
  font-family: var(--f-display); font-weight: 600;
  font-size: clamp(1.05rem, 1.5vw, 1.35rem); line-height: 1.3;
}
.whub__arrow {
  flex: 0 0 auto; width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--c-gray-mid); display: grid; place-items: center;
  font-size: 1.1rem; color: var(--c-ink);
  transition: background var(--t-med), color var(--t-med), border-color var(--t-med), transform var(--t-med);
}
.whub__row:hover { color: var(--c-blue); }
.whub__row:hover .whub__arrow {
  background: var(--c-blue); border-color: var(--c-blue); color: #fff;
  transform: translateX(4px);
}
.whub__row:focus-visible { outline: 2px solid var(--c-blue); outline-offset: 2px; }

/* Unterseiten-Heros: --sub = Video-Hero der Eigenschaftsseiten (höher),
   --page = universeller Bild-Header aller übrigen Unterseiten. */
.lp-hero--sub { min-height: clamp(560px, 78svh, 860px); }
.lp-hero--page { min-height: clamp(420px, 58svh, 640px); }
.lp-hero--sub h1, .lp-hero--page h1 { font-size: clamp(2.1rem, 4.2vw, 3.6rem); max-width: 24ch; }
.lp-hero--sub .breadcrumb, .lp-hero--page .breadcrumb { margin-bottom: 14px; }
.lp-hero--sub .breadcrumb, .lp-hero--sub .breadcrumb a,
.lp-hero--page .breadcrumb, .lp-hero--page .breadcrumb a { color: rgba(255, 255, 255, 0.72); }
.lp-hero--sub .breadcrumb a:hover, .lp-hero--page .breadcrumb a:hover { color: #fff; }
.lp-hero--sub .breadcrumb li + li::before, .lp-hero--page .breadcrumb li + li::before { color: rgba(255, 255, 255, 0.45); }

/* Scrub-Hinweis */
.scrub-hint {
  position: absolute; right: max(5vw, 24px); bottom: 24px;
  display: flex; align-items: center; gap: 10px;
  font-family: var(--f-display); font-size: 0.8125rem; color: rgba(255,255,255,0.75);
  background: rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.15);
  padding: 8px 14px; border-radius: var(--r-pill);
}
.scrub-hint svg { width: 22px; height: 22px; }
@media (hover: none) { .scrub-hint .hint-mouse { display: none; } }

/* ============================================================
   SCROLLY: Text-Steps links, Sticky-Media rechts
   ============================================================ */
.scrolly { display: grid; gap: clamp(24px, 4vw, 64px); width: min(var(--w-lp), 100%); margin-inline: auto; }
@media (min-width: 960px) { .scrolly { grid-template-columns: 5fr 7fr; } }
.scrolly__steps { display: flex; flex-direction: column; gap: clamp(48px, 12vh, 140px); padding-block: 10vh; }
.scrolly .step { opacity: 0.35; transition: opacity 400ms ease; }
.scrolly .step.is-active { opacity: 1; }
.no-js .scrolly .step { opacity: 1; }
.scrolly .step h3 { font-size: clamp(1.35rem, 2vw, 1.8rem); }
.scrolly .step .num { font-family: var(--f-display); color: var(--c-red); font-size: 0.875rem; display: block; margin-bottom: 8px; }
.scrolly__media { display: none; }
@media (min-width: 960px) {
  .scrolly__media { display: block; position: sticky; top: 12vh; height: 76vh; align-self: start; }
  .scrolly__media figure {
    position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity 450ms ease;
    border-radius: var(--r-card); overflow: hidden; background: var(--d-card);
  }
  .scrolly__media figure.is-active { opacity: 1; }
  .scrolly__media img, .scrolly__media video { width: 100%; height: 100%; object-fit: cover; }
}
.step > figure.step-inline { margin: 14px 0 0; border-radius: var(--r-m); overflow: hidden; }
@media (min-width: 960px) { .step > figure.step-inline { display: none; } }

/* ============================================================
   VTABS: nummerierte Varianten-Tabs (01–04) mit Bildwechsel
   ============================================================ */
.vtabs { width: min(var(--w-lp), 100%); margin-inline: auto; }
.vtabs__list { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid var(--d-line); margin-bottom: clamp(20px, 3vw, 40px); }
.lp:not(.dark) .vtabs__list { border-color: var(--c-line); }
.vtab {
  font-family: var(--f-display); font-weight: 600; font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  background: none; border: 0; cursor: pointer; color: inherit; opacity: 0.55;
  padding: 14px 18px; border-bottom: 2px solid transparent; display: flex; gap: 10px; align-items: baseline;
  transition: opacity var(--t-fast);
}
.vtab .num { font-family: var(--f-display); font-size: 0.8125rem; }
.vtab[aria-selected="true"] { opacity: 1; border-bottom-color: var(--c-red); }
.vtab:hover { opacity: 1; }
.vtabs__panel { display: grid; gap: clamp(20px, 3vw, 48px); align-items: center; }
@media (min-width: 900px) { .vtabs__panel { grid-template-columns: 7fr 5fr; } }
.vtabs__panel[hidden] { display: none; }
.vtabs__panel figure { margin: 0; border-radius: var(--r-card); overflow: hidden; }

/* ============================================================
   FACTS: Zahlen-&-Fakten-Grid
   ============================================================ */
.facts { width: min(var(--w-lp), 100%); margin-inline: auto; }
.facts__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: clamp(20px, 3vw, 44px); }
.fact { border-top: 1px solid var(--d-line); padding-top: 18px; }
.lp:not(.dark) .fact, body:not(.lp) .fact { border-color: var(--c-line); }
.fact__num { font-family: var(--f-display); font-weight: 700; font-variant-numeric: tabular-nums; font-size: clamp(2.2rem, 4.5vw, 3.6rem); line-height: 1; display: block; }
.fact__num small { font-size: 0.45em; font-weight: 400; }
.fact__label { display: block; margin-top: 8px; font-size: var(--fs-small); color: var(--d-muted); max-width: 32ch; }
body:not(.dark-page) .fact__label { color: var(--c-gray); }

/* ============================================================
   CSLIDER: Card-Slider (scroll-snap + Pfeile)
   ============================================================ */
.cslider { position: relative; width: min(var(--w-lp), 100%); margin-inline: auto; }
.cslider__track {
  display: flex; gap: clamp(14px, 2vw, 28px);
  overflow-x: auto; scroll-snap-type: x mandatory; overscroll-behavior-x: contain;
  padding-bottom: 8px; scrollbar-width: none;
  cursor: grab;
}
.cslider__track.is-dragging { cursor: grabbing; user-select: none; scroll-snap-type: none; scroll-behavior: auto; }
.cslider__track img { -webkit-user-drag: none; user-select: none; }
.cslider__track::-webkit-scrollbar { display: none; }
.ccard {
  flex: 0 0 min(88vw, 430px); scroll-snap-align: start;
  background: var(--d-card); border: 1px solid var(--d-line); border-radius: var(--r-card);
  overflow: hidden; display: flex; flex-direction: column;
}
.lp:not(.dark) .ccard, .ccard--light { background: #fff; border-color: var(--c-line); }
.ccard figure { margin: 0; aspect-ratio: 16/10; overflow: hidden; }
.ccard figure img { width: 100%; height: 100%; object-fit: cover; }
.ccard__body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.ccard__body .ico { margin-bottom: 6px; }
.ccard__body h3 { margin: 0; font-size: 1.2rem; }
.ccard__body .val { color: var(--c-red); font-size: 0.9375rem; }
.ccard__body p { font-size: var(--fs-small); margin: 0; flex: 1; }
/* Eigenschafts-Card: hohe Karte. Oben die Bild-Stage (60 % der Kartenhöhe,
   harte Kante zum Textbereich), Icon 64px oben links über dem Bild,
   unten der Textblock — Titel an der Kante ausgerichtet, Button am Kartenfuß.
   Feste Kartenhöhe (statt min-height), damit die 60/40-Teilung und damit die
   Textkante auf allen Viewports über alle Karten hinweg identisch sitzt. */
.ccard--eigenschaft { height: clamp(560px, 66vh, 680px); transition: filter var(--t-med), opacity var(--t-med); }
/* Hover-Fokus: nicht gehoverte Karten entsättigt + gedimmt */
.cslider__track:hover .ccard--eigenschaft:not(:hover) { filter: grayscale(1); opacity: 0.7; }
/* schmale Karten brechen den Text länger um — mehr Gesamthöhe, Teilung bleibt 60/40 */
@media (max-width: 600px) { .ccard--eigenschaft { height: 640px; } }
.ccard--eigenschaft .ccard__stage { position: relative; flex: 0 0 60%; overflow: hidden; }
.ccard--eigenschaft .ccard__stage img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ccard--eigenschaft .ccard__stage::after {
  /* dezenter Scrim oben, damit das Icon auf jedem Motiv steht — unten KEIN Verlauf (harte Kante) */
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20, 20, 20, 0.5) 0%, rgba(20, 20, 20, 0) 38%);
}
.ccard--eigenschaft .ccard__stage .ico { position: absolute; top: 22px; left: 22px; z-index: 1; color: #fff; }
/* Hover-Video: liegt über dem Standbild, blendet beim Abspielen ein (lazy via data-src) */
.ccard--eigenschaft .ccard__stage video {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity 350ms ease;
}
.ccard--eigenschaft .ccard__stage video.is-playing { opacity: 1; }
.ccard--eigenschaft .ccard__body { flex: 1 1 auto; padding: 20px 22px 24px; }
.ccard--eigenschaft .ccard__body p { flex: 0 0 auto; }
.ccard--eigenschaft .ccard__body .btn { align-self: flex-start; margin-top: auto; padding: 10px 20px; font-size: 0.875rem; }

.cslider__nav { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; }
.cslider__btn {
  width: 46px; height: 46px; border-radius: 50%; cursor: pointer;
  border: 1px solid var(--d-line); background: transparent; color: inherit; font-size: 1.1rem;
  transition: background var(--t-fast), color var(--t-fast);
}
.lp:not(.dark) .cslider__btn { border-color: var(--c-line); }
.cslider__btn:hover { background: var(--c-red); border-color: var(--c-red); color: #fff; }

/* ============================================================
   BCAROUSEL: Bildband bottom-aligned, Auto-Scroll
   ============================================================ */
.bcarousel { overflow: hidden; }
.bcarousel__track {
  display: flex; align-items: flex-end; gap: 18px; width: max-content; will-change: transform;
  cursor: grab; touch-action: pan-y; user-select: none;
}
.bcarousel__track.is-dragging { cursor: grabbing; }
.bcarousel figure { margin: 0; flex: 0 0 auto; }
.bcarousel img { width: clamp(240px, 26vw, 420px); height: auto; border-radius: var(--r-m); display: block; }
.bcarousel figcaption { font-family: var(--f-display); font-size: var(--fs-label); color: var(--d-muted); padding-top: 8px; }
/* Overlay-Variante: Bilder +20 %, einheitliches 3:2, Caption als Overlay (nur Hover/Fokus) */
.bcarousel--overlay .bcarousel__track { align-items: stretch; }
.bcarousel--overlay figure { position: relative; border-radius: var(--r-m); overflow: hidden; }
.bcarousel--overlay img {
  width: clamp(288px, 31vw, 504px); aspect-ratio: 3 / 2; height: auto;
  object-fit: cover; border-radius: 0;
}
.bcarousel--overlay figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 18px 16px; color: #fff;
  font-family: var(--f-display); font-size: var(--fs-small); line-height: 1.35;
  background: linear-gradient(0deg, rgba(6,10,16,0.85) 0%, rgba(6,10,16,0.4) 55%, transparent 100%);
  opacity: 0; transform: translateY(8px); transition: opacity var(--t-med), transform var(--t-med);
}
.bcarousel--overlay figure:hover figcaption,
.bcarousel--overlay figure:focus-within figcaption { opacity: 1; transform: translateY(0); }
@media (hover: none) { .bcarousel--overlay figcaption { opacity: 1; transform: none; } }

/* ============================================================
   FAN — Fullwidth-Bild-Fächer (Leistungen): hohe Bild-Panels mit
   dunkelblauem Overlay (Farbe wechselt im aktiven Zustand), 2px Fugen.
   Klick: Panel wächst, Titel schiebt nach oben + wird größer,
   Text + dezenter Link blenden ein. Icons oben links.
   ============================================================ */
.fan { display: flex; gap: 2px; align-items: stretch; width: 100%; }
.fan__panel {
  flex: 1 1 0; min-width: 0; position: relative; isolation: isolate;
  display: flex; flex-direction: column;
  min-height: clamp(480px, 64vh, 720px);
  padding: clamp(22px, 2.4vw, 40px);
  background: #101820 var(--bg) center / cover no-repeat;
  color: #fff; cursor: pointer; overflow: hidden; text-align: center;
  transition: flex-grow 420ms cubic-bezier(.4, 0, .2, 1);
}
/* Overlays: Basis dunkel-bläulich, aktiv wechselt auf Markenblau (Cross-Fade) */
.fan__panel::before, .fan__panel::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  transition: opacity 420ms ease;
}
.fan__panel::before {
  background: linear-gradient(180deg, rgba(8,16,26,0.42) 0%, rgba(8,16,26,0.66) 62%, rgba(6,12,20,0.86) 100%);
}
.fan__panel::after {
  opacity: 0;
  background: linear-gradient(180deg, rgba(2,84,142,0.5) 0%, rgba(4,56,96,0.72) 60%, rgba(4,30,52,0.9) 100%);
}
.fan__panel.is-open::before { opacity: 0; }
.fan__panel.is-open::after { opacity: 1; }
.fan__panel:not(.is-open):hover::before { opacity: 0.8; }
.fan__panel:focus-visible { outline: 2px solid #fff; outline-offset: -4px; }
.fan__panel.is-open { flex-grow: 2.6; cursor: default; }
.fan__ico {
  position: absolute; top: clamp(20px, 2.2vw, 34px); left: clamp(20px, 2.2vw, 34px);
  color: #fff; --ico-size: clamp(42px, 3.7vw, 58px);
}
/* Zwei Spacer: oben (schrumpft im aktiven Panel → Titel nach OBEN),
   mitte (drückt den Fließtext im aktiven Panel nach UNTEN). */
.fan__spacer { flex: 1 1 0; transition: flex-grow 420ms cubic-bezier(.4, 0, .2, 1); }
.fan__panel.is-open .fan__spacer--top { flex-grow: 0; }
.fan__title {
  margin: 0; color: #fff; line-height: 1.12; letter-spacing: 0.01em;
  font-size: clamp(1.15rem, 1.6vw, 1.55rem);
  transition: font-size 420ms ease, margin-top 420ms ease;
  text-shadow: 0 1px 14px rgba(6,12,20,0.5); overflow-wrap: normal; hyphens: none;
}
.fan__panel.is-open .fan__title {
  font-size: clamp(1.6rem, 2.4vw, 2.2rem); text-align: left;
  margin-top: clamp(84px, 9vh, 120px); /* Platz für das Icon oben links */
}
/* Reveal: Höhe animiert über grid-template-rows 0fr→1fr; Inhalt sitzt UNTEN */
.fan__reveal {
  display: grid; grid-template-rows: 0fr; opacity: 0; flex: 0 0 auto;
  transition: grid-template-rows 420ms cubic-bezier(.4, 0, .2, 1), opacity 420ms ease;
}
.fan__reveal > div { overflow: hidden; min-height: 0; text-align: left; }
.fan__panel.is-open .fan__reveal { grid-template-rows: 1fr; opacity: 1; }
.fan__reveal p {
  margin: 0 0 16px; max-width: 44ch; text-align: left;
  color: rgba(255,255,255,0.88); font-size: var(--fs-small); line-height: 1.6;
}
.fan__reveal .btn { margin-top: 4px; }
.fan__reveal strong { font-weight: 600; color: #fff; }
.fan__panel > :last-child { margin-bottom: clamp(24px, 5vh, 64px); }
@media (max-width: 820px) {
  .fan { flex-direction: column; }
  .fan__panel { min-height: clamp(200px, 28vh, 280px); }
  .fan__panel.is-open { flex-grow: 1; min-height: clamp(380px, 48vh, 520px); }
  .fan__panel.is-open .fan__title { margin-top: clamp(64px, 7vh, 90px); }
  .fan__panel > :last-child { margin-bottom: clamp(20px, 4vh, 44px); }
}

/* ============================================================
   METALLSUBSTITUTION — Alu→Duroplast als SCROLL-SCRUB (Canvas, kein Pinning):
   Der Morph folgt dem Scrollfortschritt der Sektion. Gräulicher Sektions-BG,
   Inhalt als weiße Karte (15px Radius, Video links bündig — Weißstreifen im
   Video läuft nahtlos in die Karte, Bauteil ragt Richtung Text).
   ============================================================ */
.metalsub { background: #e8eaed; }
.metalsub__inner {
  display: grid; align-items: center; gap: clamp(20px, 3vw, 48px);
  background: #fff; border-radius: 15px; overflow: hidden;
}
@media (min-width: 960px) { .metalsub__inner { grid-template-columns: 1.05fr 1fr; } }
.metalsub__media {
  position: relative; width: 100%; aspect-ratio: 4 / 3; align-self: stretch;
}
.metalsub__media img,
.metalsub__media canvas {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block;
}
.metalsub__text {
  max-width: 52ch; text-align: left;
  padding: clamp(28px, 4vw, 56px) clamp(24px, 4vw, 64px) clamp(28px, 4vw, 56px) 0;
}
@media (max-width: 959px) { .metalsub__text { padding: 0 clamp(20px, 4vw, 40px) clamp(24px, 4vw, 40px); } }
.metalsub__text h2 { margin-bottom: var(--sp-3); font-size: clamp(1.7rem, 2.6vw, 2.3rem); hyphens: none; }
.metalsub__text p { color: var(--c-gray); }
.metalsub__text .btn { margin-top: var(--sp-2); }

/* ============================================================
   FOOTER-SUBNAV (LP-Querverlinkung Branchen ↔ Lösungen)
   ============================================================ */
.footer-subnav { background: var(--c-surface); padding-block: clamp(56px, 7vw, 96px); }
.footer-subnav .wrap-lp > h2 { margin-bottom: clamp(20px, 3vw, 36px); }
.footer-subnav__grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.subnav-card {
  background: #fff; border-radius: var(--r-card); padding: 26px;
  text-decoration: none; color: var(--c-ink); border: 1px solid var(--c-line);
  display: flex; flex-direction: column; gap: 8px; min-height: 150px;
  transition: transform var(--t-med), border-color var(--t-fast);
}
.subnav-card:hover { transform: translateY(-4px); border-color: var(--c-gray-mid); color: var(--c-ink); }
.subnav-card .ico { color: var(--c-blue); margin-bottom: 4px; }
.dark .subnav-card .ico { color: #9cc8e8; }
.subnav-card h3 { margin: 0; font-size: 1.15rem; }
.subnav-card p { margin: 0; font-size: var(--fs-small); color: var(--c-gray); flex: 1; }
.subnav-card .more { font-weight: 600; font-size: var(--fs-small); color: var(--c-blue); }
.subnav-card .badge { align-self: flex-start; font-family: var(--f-display); font-size: 0.75rem; background: var(--c-red); color: #fff; border-radius: var(--r-pill); padding: 3px 10px; }

/* ============================================================
   RINGDIAG: klickbares Ring-Diagramm ↔ Text-Sync (lau.do-Muster)
   ============================================================ */
.ringdiag { display: grid; gap: clamp(24px, 4vw, 60px); align-items: center; width: min(var(--w-lp), 100%); margin-inline: auto; }
@media (min-width: 940px) { .ringdiag { grid-template-columns: 1fr 1fr; } }
.ringdiag__tabs { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 18px; }
.ringdiag__tab {
  font-family: var(--f-display); font-weight: 600; font-size: 0.9375rem;
  background: none; border: 0; border-bottom: 2px solid transparent; cursor: pointer;
  color: inherit; opacity: 0.55; padding: 8px 12px;
}
.ringdiag__tab[aria-selected="true"] { opacity: 1; border-bottom-color: var(--c-red); }
.ringdiag__texts article[hidden] { display: none; }
.ringdiag__svg { width: min(100%, 520px); height: auto; margin-inline: auto; display: block; }
.ringdiag__svg .ring { fill: none; stroke: var(--d-line); stroke-width: 2; cursor: pointer; transition: stroke var(--t-med); }
.lp:not(.dark) .ringdiag__svg .ring { stroke: var(--c-line); }
.ringdiag__svg .ring.is-active { stroke: var(--c-red); stroke-width: 3; }
.ringdiag__svg text { font-family: var(--f-display); font-size: 11px; fill: currentColor; opacity: 0.7; }
.ringdiag__svg .center-label { font-family: var(--f-display); font-size: 15px; font-weight: 600; opacity: 1; }

/* ============================================================
   KI-PROMPT-WIDGET („Wissens-Assistent" — optisch, ohne Backend)
   ============================================================ */
.ask {
  width: min(90vw, 860px); margin-inline: auto;
  background: var(--d-card); border: 1px solid var(--d-line); border-radius: var(--r-card);
  padding: clamp(24px, 4vw, 44px);
}
.ask h2 { font-size: clamp(1.4rem, 2.4vw, 2rem); }
.ask form { display: flex; gap: 10px; margin-top: 18px; }
.ask input {
  flex: 1; padding: 15px 20px; font: inherit; color: var(--d-text);
  background: var(--d-bg); border: 1px solid var(--d-line); border-radius: var(--r-pill);
}
.ask input::placeholder { color: var(--d-muted); }
.ask input:focus { outline: 2px solid rgba(255,255,255,0.5); }
.ask .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.ask .chip {
  font-size: 0.8125rem; color: var(--d-muted); background: none; cursor: pointer;
  border: 1px solid var(--d-line); border-radius: var(--r-pill); padding: 7px 14px;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.ask .chip:hover { color: #fff; border-color: rgba(255,255,255,0.4); }
.ask .note { font-size: 0.75rem; color: var(--d-muted); margin-top: 14px; }

/* ---------- Pin-Stage (GSAP ScrollTrigger) ---------- */
.pin-stage { position: relative; }
.pin-stage__viewport { min-height: 100svh; display: grid; align-items: center; overflow: clip; }

/* ---------- LP-Footer-Kontakt (kompakter CTA vor Footer) ---------- */
.lp-cta { background: var(--d-bg); color: #fff; text-align: left; }
.lp-cta .wrap-lp { display: grid; gap: 24px; padding-block: clamp(64px, 9vw, 120px); }
@media (min-width: 900px) { .lp-cta .wrap-lp { grid-template-columns: 3fr 2fr; align-items: center; } }
.lp-cta h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); margin: 0; }
.lp-cta p { color: var(--d-muted); }
.lp-cta__ways { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.lp-cta__tel { font-family: var(--f-display); font-size: 1.2rem; color: #fff; text-decoration: none; display: inline-flex; align-items: center; gap: 10px; }
.lp-cta__tel:hover { color: var(--d-muted); }

/* ---------- Reveal-Varianten dunkel ---------- */
.dark ::selection { background: rgba(220, 9, 47, 0.4); }