/* 3D-Flug über den Harz (wandern-3d.html) – ergänzt styles.css + unterseiten.css */
.sub-k3d { padding-bottom: 1.5rem; }
.sub-k3d + .sub-k3d { padding-top: 1rem; }
.sub-k3d ul { padding-left: 1.2rem; }

.k3d { max-width: 1120px; margin: 0 auto; padding: 0 12px; display: grid; gap: 1rem; }
@media (min-width: 900px) {
  .k3d { grid-template-columns: 1fr 300px; padding: 0 20px; align-items: start; }
}

/* Bühne */
.k3d-buehne {
  position: relative; overflow: hidden;
  aspect-ratio: 4 / 5; max-height: 78vh; min-height: 360px;
  border-radius: var(--radius); border: 1px solid var(--line);
  background: #EAF0EC; box-shadow: var(--shadow-md);
  scroll-margin-top: 70px;
}
@media (min-width: 700px) { .k3d-buehne { aspect-ratio: 16 / 10; } }

.k3d-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%; display: block;
  touch-action: pan-y; /* Seite bleibt scrollbar, solange die Karte nicht aktiv ist */
}
.k3d-buehne.ist-aktiv .k3d-canvas { touch-action: none; cursor: grab; }
.k3d-buehne.ist-aktiv .k3d-canvas:active { cursor: grabbing; }

/* Fallback / Platzhalter: Draufsicht mit Punkten */
.k3d-fallback { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.k3d-fallback img { width: 100%; height: 100%; object-fit: cover; }
.k3d-buehne.ist-3d .k3d-fallback { display: none; }
.k3d-buehne:not(.ohne-webgl) .k3d-punkt { display: none; }
.ohne-webgl .k3d-fallback img { object-fit: contain; height: auto; }
.ohne-webgl .k3d-fallback { position: relative; inset: auto; }
.ohne-webgl { aspect-ratio: auto; min-height: 0; }
.ohne-webgl .k3d-start, .ohne-webgl .k3d-laden { display: none; }
.k3d-punkt {
  position: absolute; width: 20px; height: 20px; margin: -10px 0 0 -10px;
  border-radius: 50%; background: var(--fir-deep); border: 2px solid #fff;
  color: #fff; font-size: .7rem; font-weight: 800; line-height: 16px; text-align: center;
}
.k3d-punkt.ist-haus { background: var(--terra); width: 16px; height: 16px; margin: -8px 0 0 -8px; }
.k3d-punkt span {
  position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); white-space: nowrap;
  font-size: .75rem; font-weight: 700; color: var(--ink); background: rgba(255, 255, 255, .9);
  padding: .1em .45em; border-radius: 6px;
}
.k3d-punkt.ist-aktiv { outline: 3px solid var(--terra); }

.k3d-laden {
  position: absolute; left: 50%; bottom: 12px; transform: translateX(-50%); margin: 0;
  font-size: .85rem; font-weight: 700; color: var(--ink); background: rgba(255, 255, 255, .9);
  padding: .3em .8em; border-radius: 999px;
}
.ist-3d .k3d-laden { display: none; }

/* Beschriftungen (per JS positioniert) */
.k3d-labels { position: absolute; inset: 0; pointer-events: none; }
.k3d-label {
  position: absolute; left: 0; top: 0; will-change: transform;
  margin: -2.1em 0 0; translate: -50% 0;
  white-space: nowrap; font-size: .78rem; font-weight: 700; color: var(--fir-deep);
  background: rgba(255, 255, 255, .92); border: 1px solid var(--line);
  padding: .15em .5em; border-radius: 6px; box-shadow: var(--shadow-sm);
}
.k3d-label { pointer-events: auto; cursor: pointer; font-family: var(--sans); line-height: 1.3; }
.k3d-label:hover { background: #fff; border-color: var(--terra); }
.k3d-label:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; }
.k3d-label.ist-haus { background: var(--terra-dark); border-color: var(--terra-dark); color: #fff; font-size: .85rem; }
.k3d-label.ist-aktiv { background: var(--fir-deep); border-color: var(--fir-deep); color: #fff; }

/* Knöpfe auf der Karte */
.k3d-start {
  position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%);
  font: 700 .95rem var(--sans); color: #fff; background: var(--fir-deep);
  border: 0; border-radius: 999px; padding: .75em 1.3em; cursor: pointer; white-space: nowrap;
  box-shadow: var(--shadow-md);
}
.k3d-start[hidden] { display: none; }
.k3d-knoepfe { position: absolute; top: 10px; right: 10px; display: flex; gap: .4rem; }
.k3d-knopf {
  font: 700 .88rem var(--sans); color: var(--fir-deep); background: rgba(255, 255, 255, .95);
  border: 1px solid var(--line); border-radius: 999px; padding: .55em 1em; cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.k3d-knopf[hidden] { display: none; }
#k3d-fertig { background: var(--fir-deep); color: #fff; border-color: var(--fir-deep); }

/* Info-Karte (unter der Karte, verdeckt nichts) */
.k3d-info {
  position: relative; margin-top: .6rem;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: .8rem 2.6rem .9rem 1rem; box-shadow: var(--shadow-sm);
}
.k3d-info[hidden] { display: none; }
.k3d-info h3 { font-size: 1.15rem; color: var(--fir-deep); margin: 0 0 .25rem; }
.k3d-info p { margin: 0 0 .4rem; color: var(--ink-soft); font-size: .95rem; line-height: 1.5; }
.k3d-info ul { margin: 0; padding: 0; list-style: none; font-size: .9rem; color: var(--ink-soft); line-height: 1.45; }
.k3d-info li + li { margin-top: .25rem; }
.k3d-info strong { color: var(--ink); }
.k3d-info-zu {
  position: absolute; top: .3rem; right: .3rem; width: 2.4rem; height: 2.4rem;
  border: 0; background: transparent; font-size: 1.5rem; line-height: 1; color: var(--ink-soft); cursor: pointer;
}

/* Zielliste */
.k3d-seite h2 { font-size: 1.3rem; color: var(--fir-deep); margin: .2rem 0 .6rem; }
.k3d-ziele { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
@media (min-width: 560px) and (max-width: 899px) { .k3d-ziele { grid-template-columns: 1fr 1fr; } }
.k3d-ziel {
  width: 100%; display: flex; justify-content: space-between; align-items: baseline; gap: .6rem;
  text-align: left; font: inherit; cursor: pointer;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: .8rem 1rem; min-height: 48px; box-shadow: var(--shadow-sm);
}
.k3d-ziel:hover { border-color: var(--fir); }
.k3d-ziel[aria-pressed="true"] { border-color: var(--terra); box-shadow: 0 0 0 2px var(--terra) inset; }
.k3d-ziel-name { font-weight: 700; color: var(--fir-deep); display: inline-flex; align-items: center; gap: .55rem; }
.k3d-nr {
  flex: none; width: 1.5rem; height: 1.5rem; border-radius: 50%; background: var(--fir-deep); color: #fff;
  font-size: .78rem; font-weight: 800; display: inline-flex; align-items: center; justify-content: center;
}
.k3d-ziel-km { font-size: .85rem; color: var(--ink-soft); white-space: nowrap; }
.k3d-legende { font-size: .85rem; color: var(--ink-soft); margin: .8rem 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: .35rem .5rem; }
.k3d-pin { display: inline-block; width: 11px; height: 11px; border-radius: 50%; background: var(--fir-deep); }
.k3d-pin.ist-haus { background: var(--terra); }
.k3d-strich { display: inline-block; width: 22px; height: 4px; border-radius: 2px; background: #E8A458; outline: 1px solid #7A3A1A; }

.k3d-lizenz { margin-top: 2rem; padding: 1rem 1.2rem; background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.k3d-lizenz h2 { margin-top: 0; font-size: 1.2rem; }
.k3d-lizenz p { font-size: .88rem; margin: .4rem 0; }

.k3d-ziel:focus-visible, .k3d-knopf:focus-visible, .k3d-start:focus-visible, .k3d-info-zu:focus-visible {
  outline: 3px solid var(--terra); outline-offset: 2px;
}

/* Foto-Fenster: Start (Ferienhaus) und Ankunft (Bilder vom Ziel) */
.k3d-foto { position: absolute; z-index: 4; left: 12px; bottom: 12px; margin: 0; width: min(46%, 380px);
  background: #fff; border-radius: var(--radius-sm); box-shadow: var(--shadow-md); overflow: hidden;
  opacity: 0; transform: translateY(10px) scale(.98); transition: opacity .5s ease, transform .5s ease; }
.k3d-foto.ist-offen { opacity: 1; transform: none; }
.k3d-foto[hidden] { display: none; }
.k3d-foto-bilder { position: relative; aspect-ratio: 3 / 2; background: var(--cream-2); }
.k3d-foto-bilder img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .8s ease; }
.k3d-foto-bilder img.ist-aktiv { opacity: 1; }
.k3d-foto figcaption { padding: .55rem .75rem .65rem; }
.k3d-foto-titel { display: block; font: 600 1rem/1.25 var(--serif); color: var(--fir-deep); }
.k3d-foto-nachweis { display: block; margin-top: .2rem; font-size: .7rem; line-height: 1.35; color: var(--ink-soft); }
.k3d-foto-nachweis a { color: inherit; }
.k3d-foto-punkte { position: absolute; top: 8px; left: 10px; display: flex; gap: 5px; }
.k3d-foto-punkte span { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.55); box-shadow: 0 0 3px rgba(0,0,0,.4); }
.k3d-foto-punkte span.ist-aktiv { background: #fff; }
.k3d-foto-zu { position: absolute; top: 6px; right: 6px; width: 32px; height: 32px; border: 0; border-radius: 50%;
  background: rgba(20,30,22,.55); color: #fff; font-size: 1.2rem; line-height: 1; cursor: pointer; }
@media (max-width: 699px) { .k3d-foto { width: calc(100% - 24px); } .k3d-foto-bilder { aspect-ratio: 16 / 9; } }
@media (prefers-reduced-motion: reduce) { .k3d-foto, .k3d-foto-bilder img { transition: none; } }