/* ==========================================================================
   KIA Wissensnetz – Darstellung der Beschriftungen und Bedienelemente
   Farben kommen aus config.js (als CSS-Variablen am Container).
   ========================================================================== */
.kn-root {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(ellipse 70% 60% at 62% 48%, var(--kn-bg-inner, #0d2033) 0%, transparent 70%),
    radial-gradient(ellipse 120% 90% at 50% 50%, color-mix(in srgb, var(--kn-bg-inner, #0d2033) 45%, var(--kn-bg-outer, #050b14)) 0%, var(--kn-bg-outer, #050b14) 75%);
  background-color: var(--kn-bg-outer, #050b14);
  color: var(--kn-label, #e3f1f7);
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  -webkit-tap-highlight-color: transparent;
}
.kn-root.kn-ambient { background: transparent; }
.kn-root.kn-ambient .kn-hud, .kn-root.kn-ambient .kn-labels, .kn-root.kn-ambient .kn-tooltip { display: none; }
.kn-stage, .kn-stage canvas, .kn-labels { position: absolute; inset: 0; width: 100%; height: 100%; }
.kn-stage canvas { display: block; }
.kn-root.kn-hovering .kn-stage { cursor: pointer; }
.kn-labels { pointer-events: none; z-index: 1; }

/* Beschriftungen im Raum */
.kn-label {
  position: absolute; left: 0; top: 0;
  white-space: nowrap;
  font-size: 12px; line-height: 1.25; letter-spacing: .015em;
  color: var(--kn-label);
  text-shadow: 0 0 6px rgba(0,0,0,.9), 0 0 2px rgba(0,0,0,.9);
  will-change: transform, opacity;
}
.kn-label-seed { font-size: 13px; font-weight: 500; }
.kn-label-knowledge, .kn-label-frag { display: flex; flex-direction: column; gap: 1px; }
.kn-label-knowledge span:last-child, .kn-label-frag span:last-child { font-weight: 500; }
.kn-label-frag span:last-child { color: color-mix(in srgb, var(--kn-new) 55%, white); }
.kn-tag {
  font-family: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase;
  color: color-mix(in srgb, var(--kn-new) 70%, var(--kn-label-dim));
}
.kn-label-step { font-family: "IBM Plex Mono", ui-monospace, Consolas, monospace; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--kn-step); }
.kn-label-token { font-size: 11px; font-weight: 600; color: var(--kn-token); letter-spacing: .04em; }
.kn-label-verb {
  font-size: 11px; font-style: italic;
  color: var(--kn-label-dim);
  padding: 1px 6px; border-radius: 999px;
  background: color-mix(in srgb, var(--kn-bg-outer) 70%, transparent);
  text-shadow: none;
}

/* Tooltip beim Darüberfahren */
.kn-tooltip {
  position: absolute; left: 0; top: 0; z-index: 3;
  max-width: 260px; padding: 10px 12px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--kn-bg-outer) 88%, transparent);
  border: 1px solid color-mix(in srgb, var(--kn-label) 16%, transparent);
  backdrop-filter: blur(6px);
  font-size: 12.5px; line-height: 1.45;
  pointer-events: none;
  box-shadow: 0 8px 30px rgba(0,0,0,.35);
}
.kn-tooltip[hidden] { display: none; }
.kn-tip-tag {
  font-family: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--kn-object); margin-bottom: 2px;
}
.kn-tip-knowledge, .kn-tip-supp { color: var(--kn-new); }
.kn-tip-title { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.kn-tip-line { color: var(--kn-label-dim); margin-top: 4px; }
.kn-tip-line b { color: var(--kn-label); font-weight: 500; }

/* Bildunterschrift, Phasen, Pause */
.kn-hud {
  position: absolute; z-index: 2;
  right: clamp(16px, 3vw, 40px); bottom: clamp(16px, 3vw, 32px);
  width: min(460px, 44%);
  display: flex; flex-direction: column; gap: 10px;
  pointer-events: none;
}
.kn-hud > * { pointer-events: auto; }
.kn-legend {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-size: 11.5px; color: var(--kn-label-dim);
}
.kn-legend span { display: inline-flex; align-items: center; gap: 6px; }
.kn-sym { display: inline-block; flex: none; }
.kn-sym-obj { width: 8px; height: 8px; border-radius: 50%; background: var(--kn-object); box-shadow: 0 0 8px var(--kn-object); }
.kn-sym-know { width: 7px; height: 7px; transform: rotate(45deg); border: 1.5px solid var(--kn-knowledge); box-shadow: 0 0 6px var(--kn-new); }
.kn-sym-edge { width: 16px; height: 1px; background: var(--kn-edge); }
.kn-sym-flow { width: 16px; height: 2px; border-radius: 1px; background: var(--kn-step); box-shadow: 0 0 6px var(--kn-step); }
.kn-sym-step { width: 8px; height: 8px; border: 1.5px solid var(--kn-step); border-radius: 1px; box-shadow: 0 0 6px var(--kn-step); }
.kn-caption { min-height: 3.6em; transition: opacity .28s ease, transform .28s ease; }
.kn-caption.kn-swap .kn-text { opacity: 0; transform: translateY(3px); }
.kn-eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  font-size: 11px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--kn-label-dim); margin-bottom: 4px;
}
.kn-text {
  font-size: 15px; line-height: 1.45; color: var(--kn-label);
  transition: opacity .28s ease, transform .28s ease;
  text-wrap: pretty;
}
.kn-bar { display: flex; align-items: center; gap: 12px; }
.kn-phases { flex: 1; display: flex; gap: 6px; }
.kn-phase {
  flex: 1; height: 14px; padding: 6px 0; margin: 0;
  background: none; border: 0; cursor: pointer; position: relative;
}
.kn-phase::before, .kn-fill {
  content: ""; position: absolute; left: 0; top: 6px; height: 2px; border-radius: 2px;
}
.kn-phase::before { right: 0; background: color-mix(in srgb, var(--kn-label) 18%, transparent); }
.kn-fill { width: 0; background: var(--kn-label); opacity: .75; }
.kn-phase:hover::before { background: color-mix(in srgb, var(--kn-label) 35%, transparent); }
.kn-phase:focus-visible, .kn-btn:focus-visible { outline: 2px solid var(--kn-label); outline-offset: 3px; border-radius: 3px; }
.kn-btn {
  width: 30px; height: 30px; flex: none; border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--kn-label) 25%, transparent);
  background: transparent; color: var(--kn-label); cursor: pointer; position: relative;
}
.kn-btn:hover { border-color: color-mix(in srgb, var(--kn-label) 55%, transparent); }
.kn-pause::before, .kn-pause::after {
  content: ""; position: absolute; top: 10px; width: 3px; height: 10px; background: currentColor; border-radius: 1px;
}
.kn-pause::before { left: 10px; }
.kn-pause::after { left: 15px; }
.kn-pause.kn-paused::after { display: none; }
.kn-pause.kn-paused::before {
  left: 11px; top: 9px; width: 0; height: 0; background: none; border-radius: 0;
  border-style: solid; border-width: 6px 0 6px 10px; border-color: transparent transparent transparent currentColor;
}

/* Ersatzbild ohne WebGL */
.kn-fallback-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; }

@media (max-width: 820px) {
  .kn-hud { left: 16px; right: 16px; width: auto; bottom: 14px; gap: 8px; }
  .kn-legend { display: none; }
  .kn-text { font-size: 13.5px; }
  .kn-caption { min-height: 3.3em; }
  .kn-label { font-size: 11px; }
  .kn-label-seed { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .kn-caption, .kn-text { transition: none; }
}