/* SITOX v21: Drehprozess-Animation (Canvas). Eigenständig, keine externen Ressourcen.
   Schematisch, Zeichnungsdarstellung nach DIN EN ISO 128 / DIN ISO 129-1; Wasserzeichen wie .bild-wasserzeichen. */
/* SITOX Drehprozess · Animation (eigenständig, ohne externe Ressourcen) */
.sxd {
  --sxd-bg: var(--nacht, #101C2C);
  --sxd-line: rgba(147, 160, 174, 0.2);
  --sxd-text: var(--text-auf-dunkel, #D9E0E6);
  --sxd-hell: #F4F6F8;
  --sxd-dim: var(--stahl, #93A0AE);
  --sxd-accent: var(--messing, #CDA45A);
  --sxd-display: var(--font-display, "Barlow Semi Condensed", "Barlow", system-ui, -apple-system, "Segoe UI", Arial, sans-serif);
  --sxd-pad: clamp(12px, 2.2vw, 22px);
  margin: 0;
  background: var(--sxd-bg);
  color: var(--sxd-text);
  font-family: var(--font-text, "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif);
  border: 1px solid rgba(147, 160, 174, 0.18);
  border-radius: var(--radius, 4px);
  overflow: hidden;
  color-scheme: dark;
}
.sxd *, .sxd *::before, .sxd *::after { box-sizing: border-box; }

/* Bühne */
.sxd-stage { position: relative; aspect-ratio: 16 / 9; max-width: 100%; background: var(--sxd-bg); }
.sxd-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.sxd-hud {
  position: absolute; inset: 0; pointer-events: none; padding: var(--sxd-pad);
  display: flex; justify-content: space-between; align-items: flex-start; gap: 12px;
  text-shadow: 0 1px 2px rgba(6, 10, 16, 0.6);
}
.sxd-hud-step { display: grid; gap: 2px; align-content: start; min-width: 0; }
.sxd-hud-num { font-size: 12px; font-weight: 600; letter-spacing: 0.12em; color: var(--sxd-accent); font-variant-numeric: tabular-nums; }
.sxd-hud-name { font-family: var(--sxd-display); font-weight: 600; font-size: clamp(20px, 3.1vw, 34px); line-height: 1.05; color: var(--sxd-hell); letter-spacing: 0.005em; }
.sxd-hud-ctrl { display: grid; justify-items: end; gap: 6px; flex: none; }
.sxd-hud-tool { font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--sxd-dim); }
.sxd-hud-nc {
  margin: 0;
  display: grid; grid-template-columns: auto minmax(5.6em, auto) auto minmax(5.6em, auto); gap: 2px 8px;
  font-size: 12px; line-height: 1.35; font-variant-numeric: tabular-nums;
}
.sxd-hud-nc dt { color: var(--sxd-dim); font-weight: 600; letter-spacing: 0.06em; }
.sxd-hud-nc dd { margin: 0; color: var(--sxd-text); white-space: nowrap; }
.sxd-hud-nc dd small { color: var(--sxd-dim); font-size: 10px; margin-left: 2px; }

.sxd-toggle {
  position: absolute; right: var(--sxd-pad); bottom: var(--sxd-pad);
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; padding: 0; cursor: pointer;
  border: 1px solid rgba(205, 164, 90, 0.55); background: rgba(16, 28, 44, 0.72); color: var(--sxd-accent);
}
.sxd-toggle:hover { background: rgba(27, 46, 71, 0.9); }
.sxd-toggle svg { width: 14px; height: 14px; display: block; }
.sxd-toggle .sxd-i-play { display: none; }
.sxd.is-paused .sxd-toggle .sxd-i-play { display: block; }
.sxd.is-paused .sxd-toggle .sxd-i-pause { display: none; }
.sxd-toggle:focus-visible, .sxd-step:focus-visible { outline: 2px solid var(--sxd-accent); outline-offset: 3px; }

/* Schrittleiste */
.sxd-rail {
  list-style: none; margin: 0; padding: 0 var(--sxd-pad);
  display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px;
  border-top: 1px solid var(--sxd-line);
}
.sxd-rail li { min-width: 0; }
.sxd-step {
  appearance: none; background: none; border: 0; margin: 0; color: inherit; font: inherit; cursor: pointer;
  width: 100%; text-align: left; padding: 14px 0 12px; display: grid; gap: 5px;
}
.sxd-step-num { font-size: 11px; font-weight: 600; letter-spacing: 0.12em; color: var(--sxd-dim); font-variant-numeric: tabular-nums; }
.sxd-step-name {
  font-family: var(--sxd-display); font-size: 15px; font-weight: 500; color: var(--sxd-dim);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sxd-step-bar { position: relative; height: 2px; background: rgba(147, 160, 174, 0.22); overflow: hidden; }
.sxd-step-bar i { position: absolute; inset: 0; background: var(--sxd-accent); transform-origin: left center; transform: scaleX(0); }
.sxd-step:hover .sxd-step-name { color: var(--sxd-text); }
.sxd-step[aria-current] .sxd-step-num { color: var(--sxd-accent); }
.sxd-step[aria-current] .sxd-step-name { color: var(--sxd-hell); }
.sxd-step.is-done .sxd-step-name { color: var(--sxd-text); }

/* Erläuterung zum aktiven Schritt */
.sxd-caps { display: grid; padding: 16px var(--sxd-pad) 18px; border-top: 1px solid var(--sxd-line); }
.sxd-cap {
  grid-area: 1 / 1; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 10px 36px;
  visibility: hidden; opacity: 0; transition: opacity 0.35s ease;
}
.sxd-cap.is-active { visibility: visible; opacity: 1; }
.sxd-cap-title { margin: 0 0 4px; font-family: var(--sxd-display); font-weight: 600; font-size: 19px; line-height: 1.2; color: var(--sxd-hell); }
.sxd-cap-text { margin: 0; line-height: 1.55; max-width: 62ch; }
.sxd-cap-title, .sxd-cap-vorteil { max-width: none; }
.sxd-cap-vorteil { margin: 0; line-height: 1.5; align-self: start; }
.sxd-cap-vorteil strong { display: block; margin-bottom: 3px; font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--sxd-accent); }
.sxd-note { margin: 0; max-width: none; padding: 10px var(--sxd-pad) 14px; font-size: 12px; line-height: 1.45; color: var(--sxd-dim); border-top: 1px solid var(--sxd-line); }

@media (max-width: 559px) {
  .sxd-stage { aspect-ratio: 4 / 3; }
  .sxd-hud-tool { display: none; }
  .sxd-hud-nc { font-size: 11px; grid-template-columns: auto minmax(5.2em, auto) auto minmax(4.6em, auto); gap: 1px 6px; }
}
@media (max-width: 680px) {
  .sxd-rail { gap: 6px; }
  .sxd-step { padding: 12px 0 10px; }
  .sxd-step-name { display: none; }
  .sxd-cap { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .sxd-cap { transition: none; }
}
@media print {
  .sxd-toggle { display: none; }
}

/* ---------- Einbindung sitox.de: Abschnitt „Drehen im Detail“ unter den Prozesskarten ---------- */
.drehprozess { margin-top: clamp(40px, 5vw, 72px); padding-top: clamp(32px, 4vw, 48px); border-top: 1px solid #bdc8d1; }
.drehprozess .sxd { box-shadow: 0 18px 40px -28px rgba(16, 28, 44, 0.55); }