/* ==========================================================================
   anim-parallel.css
   Modul: "Parallel vs. sequenziell" fuer chatCOS.
   Alle Farben ausschliesslich ueber die globalen Theme-Variablen
   (--bg, --surface, --surface-2, --text, --text-muted, --accent,
    --accent-2, --accent-soft, --border). Keine festen Farbwerte,
   damit beide Farbwelten (Business hell/blau, Technik dunkel/gruen) tragen.
   ========================================================================== */

.apx {
  /* lokale, gekapselte Variablen (Prefix apx, kollidieren nicht global) */
  --apx-name-w: 104px;
  --apx-radius: 8px;
  --apx-track-h: 26px;
  --apx-bar-dur: 480ms;
  --apx-ease: cubic-bezier(.33, 1, .68, 1);

  max-width: 940px;
  margin: 0 auto;
  color: var(--text);
  font-family: inherit;
  -webkit-font-smoothing: antialiased;
}

.apx *,
.apx *::before,
.apx *::after {
  box-sizing: border-box;
}

/* --- Kopf ---------------------------------------------------------------- */
.apx__head {
  text-align: center;
  margin-bottom: clamp(1.5rem, 4vw, 2.6rem);
}

.apx__title {
  margin: 0 0 .55rem;
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.15;
}

.apx__sub {
  margin: 0 auto;
  max-width: 54ch;
  color: var(--text-muted);
  font-size: clamp(.95rem, 2.1vw, 1.05rem);
  line-height: 1.55;
}

/* --- Szene / Karten ------------------------------------------------------ */
.apx__scene {
  display: flex;
  flex-direction: column;
  gap: clamp(1.1rem, 2.8vw, 1.6rem);
}

.apx__scenario {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(1rem, 2.6vw, 1.5rem);

  /* Einblende-Zustand (Reveal) */
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity .6s ease,
    transform .6s var(--apx-ease);
}

.apx.is-playing .apx__scenario { opacity: 1; transform: none; }
.apx.is-playing .apx__scenario--par { transition-delay: .1s; }

/* --- Szenario-Kopf ------------------------------------------------------- */
.apx__scHead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.apx__scName {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .01em;
}

.apx__scName::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--text-muted);
  flex: 0 0 auto;
}

.apx__scenario--par .apx__scName::before {
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.apx__time {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: .82rem;
  letter-spacing: .01em;
  padding: .32rem .72rem;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  white-space: nowrap;
}

.apx__time--accent {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 38%, var(--border));
}

/* --- Bahnen (Lanes) ------------------------------------------------------ */
.apx__lanes {
  display: flex;
  flex-direction: column;
  gap: .55rem;
}

.apx__lane {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.apx__laneName {
  flex: 0 0 var(--apx-name-w);
  width: var(--apx-name-w);
  font-size: .82rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.apx__laneTrack {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  height: var(--apx-track-h);
  border-radius: var(--apx-radius);
  background-color: var(--surface-2);
  /* dezente Rasterlinien alle 25% = Zeit-Einheiten */
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0,
    transparent calc(25% - 1px),
    var(--border) calc(25% - 1px),
    var(--border) 25%
  );
  overflow: hidden;
}

.apx__bar {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--l, 0%);
  width: var(--w, 25%);
  border-radius: var(--apx-radius);
  background: linear-gradient(180deg, var(--apx-bar-top), var(--apx-bar-bot));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .10);

  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--apx-bar-dur) var(--apx-ease);
  will-change: transform;
}

.apx__bar.is-fill { transform: scaleX(1); }

.apx__bar--a { --apx-bar-top: color-mix(in srgb, var(--accent) 90%, #fff 10%);   --apx-bar-bot: var(--accent); }
.apx__bar--b { --apx-bar-top: color-mix(in srgb, var(--accent-2) 90%, #fff 10%); --apx-bar-bot: var(--accent-2); }

/* --- Delta / Zeit gespart ------------------------------------------------ */
.apx__delta {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-top: 1.1rem;

  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity .5s ease,
    transform .5s var(--apx-ease);
}

.apx.is-delta .apx__delta { opacity: 1; transform: none; }

.apx__deltaSpacer {
  flex: 0 0 var(--apx-name-w);
  width: var(--apx-name-w);
}

.apx__deltaTrack {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  height: 40px;
}

/* Bracket-Hintergrund: skaliert von links auf, KEINE Textkinder */
.apx__deltaSpan {
  position: absolute;
  left: 25%;
  right: 0;
  top: 0;
  bottom: 0;
  border-left: 2px dashed var(--accent);
  border-radius: 0 var(--apx-radius) var(--apx-radius) 0;
  background: linear-gradient(90deg, var(--accent-soft), transparent 85%);

  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .55s var(--apx-ease);
}

.apx.is-delta .apx__deltaSpan { transform: scaleX(1); }

/* Label: eigener, NICHT skalierender Overlay ueber der gesparten Region */
.apx__deltaLabelWrap {
  position: absolute;
  left: 25%;
  right: 0;
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.apx__deltaLabel {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--border));
  padding: .38rem .78rem;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: 0 6px 18px -8px color-mix(in srgb, var(--accent) 55%, transparent);

  opacity: 0;
  transform: translateY(4px) scale(.96);
  transition:
    opacity .4s ease .28s,
    transform .4s var(--apx-ease) .28s;
}

.apx.is-delta .apx__deltaLabel { opacity: 1; transform: none; }

.apx__deltaLabel span { color: var(--text-muted); font-weight: 500; }
.apx__deltaLabel strong { font-variant-numeric: tabular-nums; font-weight: 700; }

/* --- Responsive ---------------------------------------------------------- */
@media (max-width: 560px) {
  .apx { --apx-name-w: 68px; --apx-track-h: 22px; }
  .apx__laneName { font-size: .72rem; }
  .apx__scHead { margin-bottom: .85rem; }
  .apx__time { font-size: .74rem; padding: .28rem .6rem; }
  .apx__deltaLabel { font-size: .72rem; padding: .32rem .6rem; }
  .apx__deltaLabel span { display: none; } /* auf klein nur der Wert */
  .apx__deltaTrack { height: 34px; }
}

@media (max-width: 380px) {
  .apx { --apx-name-w: 60px; }
  .apx__laneName { font-size: .68rem; }
}

/* --- Reduced Motion: Endzustand ohne Bewegung ---------------------------- */
@media (prefers-reduced-motion: reduce) {
  .apx__scenario,
  .apx__bar,
  .apx__delta,
  .apx__deltaSpan,
  .apx__deltaLabel {
    transition: none !important;
  }
}