/* ============================================================
   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: 120px 0 clamp(40px, 7vh, 80px);
}
.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" oben (weißer Streifen im
   Video läuft nahtlos in den Seitenhintergrund; Bauteil überlagert die Kante =
   3D-Effekt), Headline-Block darunter auf Weiß. Video spielt EINMAL (kein Loop). */
.home-hero { background: var(--c-bg); height: clamp(340px, 52vh, 680px); }
.home-hero video {
  display: block; width: 100%; height: 100%;
  object-fit: cover; object-position: center bottom;
}
.home-intro { background: var(--c-bg); padding-block: clamp(6px, 1.2vw, 20px) clamp(56px, 7vw, 104px); }
.home-intro .kicker {
  font-family: var(--f-display); font-size: 0.875rem; letter-spacing: 0.02em;
  color: var(--c-gray); display: flex; align-items: center; gap: 10px;
}
.home-intro .kicker::before { content: ''; width: 26px; height: 1px; background: var(--c-red); }
.home-intro h1 {
  margin: 14px 0 12px;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.98; letter-spacing: -0.02em;
  font-weight: 820; font-stretch: 108%;
  max-width: 18ch; text-wrap: balance; color: var(--c-ink);
}
.home-intro .sub { font-size: clamp(1.05rem, 1.5vw, 1.3rem); font-weight: 300; color: var(--c-gray); max-width: 60ch; }

/* 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); }
/* 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; }
.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; }

/* ============================================================
   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); }