/* AROW 3D-Viewer – Komponentenstile. Tokens folgen assets/css/site.css (Ullmanna V2). */
:root {
  --arow-blue: #1E587B;
  --arow-blue-deep: #0F3247;
  --arow-yellow: #F2DB43;
  --arow-ink: #2E3A40;
  --arow-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

arow-viewer {
  display: grid;
  min-width: 0;
  grid-template-rows: auto auto;
  position: relative;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% 100%, rgba(30, 88, 123, 0.10), transparent 60%),
    linear-gradient(180deg, #f7f8f9 0%, #eceff1 100%);
  box-shadow: 0 1px 2px rgba(15, 50, 71, 0.06), 0 12px 32px -16px rgba(15, 50, 71, 0.25);
  font-family: inherit;
  color: var(--arow-ink);
}
arow-viewer:fullscreen { border-radius: 0; grid-template-rows: 1fr auto; }

/* Bühne */
.arow-viewer__stage {
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: 320px;
  touch-action: pan-y; /* vertikales Scrollen bleibt am Handy möglich */
}
@media (min-width: 900px) { .arow-viewer__stage { aspect-ratio: 16 / 10; } }
arow-viewer:fullscreen .arow-viewer__stage { aspect-ratio: auto; height: 100%; }

.arow-viewer__canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
  cursor: grab;
  opacity: 0;
  transition: opacity 700ms var(--arow-ease);
}
.arow-viewer__canvas:active { cursor: grabbing; }
arow-viewer.is-loaded .arow-viewer__canvas { opacity: 1; }

/* Poster: sichtbar bis das Modell steht */
.arow-viewer__poster {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: contain;
  transition: opacity 500ms var(--arow-ease);
}
.arow-viewer__poster.is-hidden { opacity: 0; pointer-events: none; }

/* Ladefortschritt – dünne gelbe Linie wie der Lesefortschritt der Site */
.arow-viewer__progress {
  position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: rgba(15, 50, 71, 0.08);
  transition: opacity 320ms var(--arow-ease);
}
.arow-viewer__progress span {
  display: block; height: 100%;
  background: var(--arow-yellow);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 180ms linear;
}
arow-viewer.is-loaded .arow-viewer__progress { opacity: 0; }

/* Bedienhinweis */
.arow-viewer__hint {
  position: absolute; left: 50%; bottom: 12px;
  transform: translateX(-50%);
  margin: 0;
  padding: 6px 12px;
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--arow-blue-deep);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(6px);
  border-radius: 999px;
  opacity: 0;
  transition: opacity 320ms var(--arow-ease) 1.6s;
  pointer-events: none;
  white-space: nowrap;
}
arow-viewer.is-loaded .arow-viewer__hint { opacity: 1; }
.arow-viewer__hint.is-hidden { opacity: 0 !important; transition-delay: 0s; }

/* Hotspots */
.arow-viewer__hotspots { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.arow-viewer__hotspot {
  position: absolute; left: 0; top: 0;
  display: flex; align-items: center; gap: 10px;
  margin: -14px 0 0 -14px;
  padding: 0;
  border: 0; background: none;
  pointer-events: auto;
  cursor: pointer;
  font: inherit;
  color: var(--arow-blue-deep);
  opacity: 0;
  transition: opacity 320ms var(--arow-ease);
}
arow-viewer.is-loaded .arow-viewer__hotspot { opacity: 1; }
arow-viewer.is-loaded .arow-viewer__hotspot.is-occluded { opacity: 0.12; pointer-events: none; }
.arow-viewer__hotspot.is-occluded .arow-viewer__label { opacity: 0; }
.arow-viewer__dot {
  position: relative;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 2px var(--arow-blue), 0 4px 12px -2px rgba(15, 50, 71, 0.35);
  transition: transform 320ms var(--arow-ease), background 180ms;
}
.arow-viewer__dot::after {
  content: "";
  position: absolute; inset: 9px;
  border-radius: 50%;
  background: var(--arow-blue);
  transition: background 180ms;
}
.arow-viewer__dot::before { /* Puls-Ring */
  content: "";
  position: absolute; inset: -2px;
  border-radius: 50%;
  border: 2px solid var(--arow-yellow);
  opacity: 0;
  animation: arow-pulse 2.4s var(--arow-ease) infinite;
}
@keyframes arow-pulse {
  0% { transform: scale(0.8); opacity: 0.9; }
  70%, 100% { transform: scale(1.9); opacity: 0; }
}
.arow-viewer__hotspot:hover .arow-viewer__dot,
.arow-viewer__hotspot:focus-visible .arow-viewer__dot { transform: scale(1.12); }
.arow-viewer__hotspot.is-active .arow-viewer__dot { background: var(--arow-yellow); box-shadow: 0 0 0 2px var(--arow-blue-deep); }
.arow-viewer__hotspot.is-active .arow-viewer__dot::before { animation: none; }
.arow-viewer__hotspot:focus-visible { outline: none; }
.arow-viewer__hotspot:focus-visible .arow-viewer__dot { box-shadow: 0 0 0 3px var(--arow-yellow), 0 0 0 5px var(--arow-blue-deep); }
.arow-viewer__label {
  padding: 4px 10px;
  font-size: 0.8125rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: 6px;
  box-shadow: 0 2px 8px -2px rgba(15, 50, 71, 0.25);
  white-space: nowrap;
  transition: opacity 180ms;
}
@media (max-width: 600px) {
  .arow-viewer__label { display: none; } /* am Handy nur Punkte – Labels sitzen in den Chips */
}

/* Leiste unter der Bühne */
.arow-viewer__bar {
  min-width: 0;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px;
  background: #fff;
  border-top: 1px solid rgba(15, 50, 71, 0.08);
}
.arow-viewer__chips {
  min-width: 0;
  display: flex; gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.arow-viewer__chips::-webkit-scrollbar { display: none; }
/* Rechts ausblenden statt hart abschneiden – zeigt, dass es weitergeht. */
.arow-viewer__chips { -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent); mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent); padding-right: 22px; }
.arow-viewer__chip {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid rgba(30, 88, 123, 0.28);
  border-radius: 999px;
  background: #fff;
  color: var(--arow-blue);
  font: inherit; font-size: 0.875rem; font-weight: 600;
  cursor: pointer;
  transition: background 180ms, color 180ms, border-color 180ms;
}
.arow-viewer__chip:hover { background: rgba(30, 88, 123, 0.08); }
.arow-viewer__chip[aria-selected="true"] { background: var(--arow-blue); color: #fff; border-color: var(--arow-blue); }
.arow-viewer__chip:focus-visible { outline: 3px solid var(--arow-yellow); outline-offset: 2px; }

.arow-viewer__tools { display: flex; gap: 4px; flex: 0 0 auto; }
.arow-viewer__btn {
  display: inline-grid; place-items: center;
  width: 44px; height: 44px;
  border: 0; border-radius: 10px;
  background: transparent;
  color: var(--arow-blue-deep);
  cursor: pointer;
  transition: background 180ms, color 180ms;
}
.arow-viewer__btn:hover { background: rgba(30, 88, 123, 0.08); }
.arow-viewer__btn[aria-pressed="false"] { color: rgba(46, 58, 64, 0.4); }
.arow-viewer__btn:focus-visible { outline: 3px solid var(--arow-yellow); outline-offset: 2px; }
.arow-viewer__ar { color: var(--arow-blue); }

/* Detail-Panel */
.arow-viewer__panel {
  position: absolute; left: 16px; right: 16px; bottom: 84px;
  max-width: 360px;
  padding: 18px 44px 18px 20px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  box-shadow: 0 16px 40px -20px rgba(15, 50, 71, 0.45);
  animation: arow-rise 320ms var(--arow-ease);
}
@media (min-width: 900px) { .arow-viewer__panel { left: auto; right: 20px; bottom: 96px; } }
@keyframes arow-rise { from { opacity: 0; transform: translateY(8px); } }
.arow-viewer__kicker {
  margin: 0 0 6px;
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--arow-blue);
  background: linear-gradient(var(--arow-yellow), var(--arow-yellow)) no-repeat 0 85% / 100% 0.35em;
  display: inline;
  padding: 0 2px;
}
.arow-viewer__text { margin: 0; font-size: 0.9375rem; line-height: 1.55; }
.arow-viewer__close {
  position: absolute; top: 8px; right: 8px;
  width: 32px; height: 32px;
  border: 0; border-radius: 8px;
  background: transparent;
  font-size: 1.25rem; line-height: 1;
  color: var(--arow-ink);
  cursor: pointer;
}
.arow-viewer__close:hover { background: rgba(30, 88, 123, 0.08); }

/* Fehlerfall */
arow-viewer.is-error .arow-viewer__stage::after {
  content: "3D-Ansicht derzeit nicht verfügbar.";
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--arow-ink);
  font-size: 0.9375rem;
}

@media (prefers-reduced-motion: reduce) {
  .arow-viewer__dot::before { animation: none; }
  .arow-viewer__panel { animation: none; }
}

/* =========================================================================
   Story-Modus (Scroll-Choreografie): Bühne füllt den Container, keine Leiste,
   nur der Hotspot des aktiven Kapitels ist sichtbar, Orbit gesperrt.
   ========================================================================= */
arow-viewer.is-story { grid-template-rows: 1fr; height: 100%; background: transparent; box-shadow: none; border-radius: 0; }
arow-viewer.is-story .arow-viewer__stage { aspect-ratio: auto; height: 100%; min-height: 0; }
arow-viewer.is-story .arow-viewer__bar,
arow-viewer.is-story .arow-viewer__hint,
arow-viewer.is-story .arow-viewer__panel { display: none; }
arow-viewer.is-story .arow-viewer__canvas { cursor: default; }
arow-viewer.is-story .arow-viewer__hotspot,
arow-viewer.is-story.is-loaded .arow-viewer__hotspot:not(.is-story-visible) { opacity: 0; pointer-events: none; transition: opacity 500ms var(--arow-ease); }
arow-viewer.is-story.is-loaded .arow-viewer__hotspot.is-story-visible { opacity: 1; }
arow-viewer.is-story .arow-viewer__hotspot.is-active .arow-viewer__dot { background: var(--arow-yellow); }
arow-viewer.is-story .arow-viewer__hotspot .arow-viewer__label { display: none; }
arow-viewer.is-released { height: 100%; grid-template-rows: 1fr auto; }
arow-viewer.is-released .arow-viewer__stage { aspect-ratio: auto; min-height: 0; }

/* =========================================================================
   Seite /arow – Intro, Scroll-Story, Punkte. Tokens aus site.css.
   ========================================================================= */
.page-arow { --arow-top: 5.25rem; }
@media (max-width: 1040px) { .page-arow { --arow-top: 4.5rem; } }
.arow-intro { padding-bottom: 0; }
.arow-intro__grid { display: grid; gap: var(--s-6) clamp(2rem, 1rem + 3vw, 4rem); align-items: end; }
@media (min-width: 900px) { .arow-intro__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); } }
.arow-intro h1 { font-size: var(--fs-display); line-height: var(--lh-display); max-width: 14ch; margin: 0; }
.arow-intro h1 .hl {
  background-image: linear-gradient(var(--yellow), var(--yellow));
  background-repeat: no-repeat; background-size: 100% 0.13em; background-position: 0 88%;
  box-decoration-break: clone; -webkit-box-decoration-break: clone;
}
.arow-intro .lead { margin: 0; max-width: 42ch; }
.arow-intro__hint { display: inline-flex; align-items: center; gap: var(--s-2); margin: var(--s-5) 0 0; font-size: var(--fs-label); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue); }
.arow-intro__hint svg { width: 0.7em; height: 0.7em; fill: currentColor; transform: rotate(90deg); animation: arow-nudge 1.8s var(--ease) infinite; }
@keyframes arow-nudge { 0%, 100% { transform: rotate(90deg) translateX(0); } 50% { transform: rotate(90deg) translateX(4px); } }

/* Story: Bühne links klebt, Kapitel rechts laufen durch */
.arow-story { position: relative; }
.arow-story__grid { display: grid; grid-template-columns: minmax(0, 1fr); }
.arow-story__stage { position: sticky; top: var(--arow-top, 4.5rem); z-index: 1; }
/* Schmal: Bühne klebt über dem Text. Hintergrund und ein weicher Übergang nach
   unten, damit durchlaufender Text nicht an einer harten Kante abreisst oder in
   den runden Ecken durchscheint. */
@media (max-width: 899.98px) {
  .arow-story__stage { background: var(--paper-soft); padding-bottom: var(--s-3); }
  .arow-story__stage::after {
    content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 28px; pointer-events: none;
    background: linear-gradient(180deg, var(--paper-soft), rgba(247, 249, 250, 0));
  }
  .arow-story__sticky { height: min(44vh, 26rem); }
}
@media (max-width: 899.98px) and (max-height: 640px) {
  .arow-story__sticky { height: min(38vh, 26rem); }
}
/* Schmal: jedes Kapitel ist so hoch wie das freie Fenster unter der Bühne und
   ohne Lücke dazwischen – sonst gab es Scrollstellen, an denen nur der Rest des
   vorigen Kapitels hinter der Bühne zu sehen war. */
@media (max-width: 899.98px) {
  .arow-story__chapters { gap: 0; padding-top: var(--s-4); }
  .arow-chapter,
  .arow-chapter:first-child { min-height: calc(100vh - var(--arow-top, 4.5rem) - min(44vh, 26rem) - var(--s-3)); min-height: calc(100svh - var(--arow-top, 4.5rem) - min(44vh, 26rem) - var(--s-3)); padding: var(--s-5) 0; }
  .arow-chapter:last-child { min-height: 70vh; }
  /* Am Handy nicht abblenden: der Text läuft unter der Bühne durch, und ein
     halb gelesenes Kapitel soll nicht plötzlich grau werden. */
  .arow-chapter__card { opacity: 1; transform: none; }
}
@media (max-width: 899.98px) and (max-height: 640px) {
  .arow-chapter,
  .arow-chapter:first-child { min-height: calc(100vh - var(--arow-top, 4.5rem) - min(38vh, 26rem) - var(--s-3)); min-height: calc(100svh - var(--arow-top, 4.5rem) - min(38vh, 26rem) - var(--s-3)); }
}
.arow-story__sticky {
  position: relative;
  height: min(44vh, 26rem);
  z-index: 1;
  background:
    radial-gradient(110% 70% at 50% 95%, rgba(30, 88, 123, 0.10), transparent 60%),
    linear-gradient(180deg, var(--paper) 0%, var(--blue-050) 100%);
  border-radius: 16px;
  overflow: hidden;
}
.arow-story__sticky arow-viewer { height: 100%; }
.arow-story__dots { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); display: none; flex-direction: column; gap: 8px; margin: 0; padding: 0; list-style: none; }
.arow-story__dots li { width: 8px; height: 8px; border-radius: 50%; background: var(--blue-200); cursor: pointer; transition: transform var(--t-fast) var(--ease), background var(--t-fast); }
.arow-story__dots li.is-current { background: var(--blue); transform: scale(1.4); }
.arow-story__dots li:hover { background: var(--blue-300); }

.arow-story__chapters { list-style: none; margin: 0; padding: var(--s-6) 0 clamp(4rem, 8vh, 8rem); display: grid; gap: clamp(3rem, 12vh, 8rem); }
.arow-chapter { min-height: 34vh; display: flex; align-items: center; }
.arow-chapter__card { max-width: 34rem; opacity: 0.38; transform: translateY(6px); transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease); }
.arow-chapter.is-current .arow-chapter__card { opacity: 1; transform: none; }
.arow-chapter__k { display: flex; align-items: center; gap: var(--s-3); margin: 0 0 var(--s-3); font-size: var(--fs-label); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue); }
.arow-chapter__k span { display: inline-grid; place-items: center; min-width: 2rem; height: 2rem; padding: 0 0.4rem; border-radius: 999px; background: var(--yellow); color: var(--blue-ink); font-size: 0.75rem; letter-spacing: 0; }
.arow-chapter h2 { font-size: var(--fs-h2); margin: 0 0 var(--s-4); max-width: 18ch; }
.arow-chapter p:last-child { margin: 0; color: var(--ink-muted); font-size: var(--fs-lead); line-height: 1.6; }
.arow-chapter:first-child { min-height: 30vh; }
.arow-chapter:last-child { min-height: 60vh; }

@media (min-width: 900px) {
  .arow-story__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 1rem + 3vw, 4rem); align-items: stretch; }
  .arow-story__stage { align-self: stretch; }
  .arow-story__stage { position: static; }
  .arow-story__sticky { position: sticky; top: calc(var(--arow-top, 4.5rem) + 1rem); height: calc(100vh - var(--arow-top, 4.5rem) - 2rem); max-height: 52rem; }
  .arow-story__dots { display: flex; }
  .arow-story__chapters { padding-top: 10vh; gap: 0; }
  .arow-chapter { min-height: 82vh; }
  .arow-chapter:first-child { min-height: 70vh; }
  .arow-chapter:last-child { min-height: 90vh; }
  .arow-chapter__card { transform: translateY(16px); }
}

@media (prefers-reduced-motion: reduce) {
  .arow-intro__hint svg { animation: none; }
  .arow-chapter__card { opacity: 1; transform: none; transition: none; }
}
/* Ohne JS: Bühne zeigt das Standbild, Kapitel lesbar */
html:not(.js) .arow-chapter__card { opacity: 1; transform: none; }
html:not(.js) .arow-story__sticky { position: static; height: auto; }
html:not(.js) arow-viewer { display: block; padding: var(--s-4); }
html:not(.js) arow-viewer img { width: 100%; height: auto; display: block; }