/* ==========================================================================
   biteme.digital . leistungen/pipelines.html (WP-E5)
   Motiv: Rohrpost (Flaggschiff). Datenpunkte wandern scroll-gekoppelt durch
   SVG-Leitungen zwischen Stations-Karten (Section 3). Konventionelle Sub-Page
   (kein ascent, kein Breach), Starttiefe -600 m, twilight-Aufhellung am Ende.
   Nur transform/opacity animiert. Initial-States fuer INHALTE setzt die Engine
   via JS, hier nichts via opacity:0 verstecken (Guide §10.6).
   ========================================================================== */

/* Lande-Zone der Seite: oben midnight (Engine blendet beim Scrollen). */
body { --zone-bg: var(--zone-midnight); }

/* --------------------------------------------------------------------------
   1. HERO (Section 1)
   -------------------------------------------------------------------------- */
.hero-pipe {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4.5rem, 10vh, 7.5rem);
}
.hero-pipe__inner { position: relative; z-index: 1; }

.hero-pipe__back {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
  transition: color var(--t-fast) ease;
}
.hero-pipe__back:hover { color: var(--text-primary); }

.hero-pipe h1 { max-width: 16ch; }
.hero-pipe__sub { margin-top: 1.6rem; max-width: 36ch; }

/* abstraktes Workflow-Diagramm, sehr dezent, rechts hinterlegt */
.hero-pipe__diagram {
  position: absolute;
  right: -4%;
  top: 50%;
  transform: translateY(-50%);
  width: min(620px, 58%);
  opacity: 0.14;
  pointer-events: none;
  z-index: 0;
}
.hero-pipe__diagram svg { width: 100%; height: auto; }

@media (max-width: 760px) {
  .hero-pipe__diagram { opacity: 0.08; right: -18%; width: 90%; }
}

/* --------------------------------------------------------------------------
   2. WANN BRAUCHST DU UNS (Section 2)
   -------------------------------------------------------------------------- */
.trigger__grid { gap: 1.25rem; }
.trigger__card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--accent-caribbean);
  margin-bottom: 0.9rem;
  line-height: 1.35;
}
.trigger__card p { max-width: none; }

/* --------------------------------------------------------------------------
   3. ROHRPOST (Section 3, Flaggschiff)
   Leitungs-Layer links, Stations-Karten rechts. Das SVG wird von
   pages/pipelines.js nach Mass gefuellt (Spine + Branch-Stubs + Datenpunkte),
   Knoten-Position = gemessene Kartenmitte. Glow via .is-lit (nur opacity).
   -------------------------------------------------------------------------- */
.rohrpost__wrap {
  position: relative;
  padding-left: 72px;
  max-width: 60rem;
}

.rohrpost__rail {
  position: absolute;
  left: 0;
  top: 0;
  width: 60px;
  height: 100%;
  pointer-events: none;
}
.rohrpost__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}
/* von pipelines.js gesetzte Klassen auf erzeugten Elementen:
   .rohrpost__pipe (Leitung), .rohrpost__branch (Abzweig),
   .rohrpost__dot (Datenpunkt) */
.rohrpost__pipe { stroke: var(--accent-caribbean); stroke-width: 2; fill: none; opacity: 0.55; }
.rohrpost__branch { stroke: var(--text-muted); stroke-width: 1.5; fill: none; opacity: 0.4; }
.rohrpost__dot { fill: var(--accent-caribbean); }
.rohrpost__dot-halo { fill: none; stroke: var(--accent-caribbean); opacity: 0.35; }

.rohrpost__cards {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.station-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.75rem;
  transition: border-color var(--t-med) ease, transform var(--t-med) ease;
}

/* Andock-Knoten am linken Kartenrand (Ziel der Leitung) */
.station-card__node {
  position: absolute;
  left: -12px;
  top: 2rem;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--bg-elevated-2);
  border: 1.5px solid var(--caribbean-25);
  transition: border-color var(--t-med) ease, background var(--t-med) ease;
}
/* Glow, wenn ein Datenpunkt andockt. KEIN box-shadow-Tween: ein
   Pseudo-Element-Halo wird per opacity ein-/ausgeblendet (nur opacity). */
.station-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(120% 80% at 0% 50%, var(--caribbean-15), transparent 60%);
  box-shadow: inset 0 0 0 1px var(--caribbean-40);
  opacity: 0;
  transition: opacity 0.45s ease;
}
.station-card.is-lit::after { opacity: 1; }
.station-card.is-lit { border-color: var(--caribbean-25); }
.station-card.is-lit .station-card__node {
  background: var(--accent-caribbean);
  border-color: var(--accent-caribbean);
}

.station-card__num {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent-caribbean);
  padding-top: 0.35rem;
  flex: none;
}
.station-card__body { flex: 1; min-width: 0; }
.station-card__body h3 { margin-bottom: 0.6rem; }
.station-card__body p { max-width: none; }
.station-card__format {
  margin-top: 0.85rem;
  font-size: 0.71875rem;
  color: rgba(155, 163, 181, 0.8);
  line-height: 1.5;
}

@media (max-width: 620px) {
  .rohrpost__wrap { padding-left: 44px; }
  .rohrpost__rail { width: 36px; }
  .station-card { padding: 1.35rem 1.25rem; gap: 0.85rem; }
}

/* --------------------------------------------------------------------------
   4. EIGENBETRIEB (Section 4) . farblich abgesetzter Block
   -------------------------------------------------------------------------- */
.eigenbetrieb {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--caribbean-25);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(120% 90% at 0% 0%, var(--caribbean-08), transparent 55%),
    var(--bg-elevated);
  padding: clamp(1.75rem, 4vw, 3.25rem);
}
.eigenbetrieb__inner { position: relative; z-index: 1; }
.eigenbetrieb__bjoern {
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 260px;
  opacity: 0.04;
  pointer-events: none;
  z-index: 0;
}
.eigenbetrieb__bjoern img { width: 100%; height: auto; }

.eigenbetrieb__grid { margin-top: 2.5rem; gap: 1.1rem; }
.eigen-card .kicker { margin-bottom: 0.7rem; }
.eigen-card h3 { font-size: 1.0625rem; margin-bottom: 0.6rem; }
.eigen-card p { font-size: 0.9375rem; max-width: none; }

.eigenbetrieb__proof {
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
  max-width: 44ch;
  font-size: 1.125rem;
  font-weight: 500;
  font-family: var(--font-display);
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   5. KUNDEN-MANDATE (Section 5)
   -------------------------------------------------------------------------- */
.mandate { position: relative; overflow: hidden; }
.mandate__logos { margin-top: 0.5rem; }
.mandate__cta { margin-top: 2rem; }

/* --------------------------------------------------------------------------
   6. FINAL CTA (Section 6) . hellste Zone der Seite
   -------------------------------------------------------------------------- */
.final-cta-scene { position: relative; overflow: hidden; }
.final-cta {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 46rem;
  margin-inline: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, var(--bg-elevated-2), var(--bg-elevated) 55%, var(--bg-deep));
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 5vw, 3.5rem);
}
.final-cta h2 { margin-inline: auto; }
.final-cta__sub { margin: 1.5rem auto 0; max-width: 42ch; }
.final-cta__actions {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.85rem 1rem;
}
.final-cta__mail { font-size: 0.9375rem; }

/* --------------------------------------------------------------------------
   7. REDUCED MOTION . der Rohrpost-Datenfluss ruht, Stationen bleiben
      lesbar und dezent beleuchtet (pipelines.js setzt das statisch).
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .hero-pipe__diagram { opacity: 0.1; }
}