/* ============================================================
   Leistungen — Workflow-Strip + Tabs
   ============================================================ */

/* ---------- Workflow-Strip (Dark-Mode in Leistungen-Sektion) ---------- */

.workflow-strip {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: clamp(4rem, 6vw, 5.5rem);
  border-top: 1px solid rgba(243, 245, 248, 0.12);
  border-bottom: 1px solid rgba(243, 245, 248, 0.12);
  padding: var(--space-lg) 0;
  counter-reset: step;
}

.workflow-strip li {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  position: relative;
}

.workflow-strip li:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -1.75rem;
  top: 50%;
  width: 1rem;
  height: 1px;
  background: rgba(243, 245, 248, 0.2);
}

.workflow-strip__step {
  font-family: 'Geist Mono', monospace;
  font-size: var(--fs-mono-xs);
  letter-spacing: 0.12em;
  color: rgba(243, 245, 248, 0.30);
  transition: color 0.6s ease;
  transition-delay: calc(var(--step-i, 0) * 200ms);
}

.workflow-strip.is-revealed .workflow-strip__step {
  color: var(--color-green-glow);
}

.workflow-strip__label {
  font-family: 'Geist', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-bg-light);
  letter-spacing: -0.005em;
}

@media (max-width: 720px) {
  .workflow-strip {
    grid-template-columns: 1fr 1fr;
  }
  .workflow-strip li::after { display: none; }
}

/* ---------- Tabs ---------- */

.tabs {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  background: rgba(243, 245, 248, 0.03);
  border: 1px solid rgba(243, 245, 248, 0.1);
}

.tabs__list {
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(243, 245, 248, 0.1);
  background: rgba(0, 0, 0, 0.18);
}

.tabs__tab {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-md);
  text-align: left;
  font-family: 'Geist', sans-serif;
  border-bottom: 1px solid rgba(243, 245, 248, 0.08);
  position: relative;
  transition: background 0.25s ease, color 0.25s ease;
  background: transparent;
}

.tabs__tab:last-child { border-bottom: 0; }

.tabs__tab-num {
  font-family: 'Geist Mono', monospace;
  font-size: var(--fs-mono-xs);
  letter-spacing: 0.12em;
  color: rgba(243, 245, 248, 0.45);
  flex-shrink: 0;
}

.tabs__tab-label {
  font-size: 1rem;
  font-weight: 500;
  color: rgba(243, 245, 248, 0.85);
  line-height: 1.3;
}

.tabs__tab:hover {
  background: rgba(28, 138, 62, 0.08);
}

.tabs__tab[aria-selected="true"] {
  background: rgba(243, 245, 248, 0.05);
}

.tabs__tab[aria-selected="true"]::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-green-glow);
}

.tabs__tab[aria-selected="true"] .tabs__tab-num {
  color: var(--color-green-glow);
}

.tabs__tab[aria-selected="true"] .tabs__tab-label {
  color: var(--color-bg-light);
}

.tabs__panel {
  padding: clamp(2.5rem, 4vw, 4rem);
}

.tabs__panel[hidden] { display: none; }

/* Subtiler Slide-In beim Tab-Wechsel */
.tabs__panel:not([hidden]) {
  animation: tab-slide-in 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes tab-slide-in {
  from { opacity: 0; transform: translateX(14px); }
  to { opacity: 1; transform: translateX(0); }
}

@media (prefers-reduced-motion: reduce) {
  .tabs__panel:not([hidden]) { animation: none; }
}

.tabs__panel-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xl);
  align-items: start;
}

.tabs__panel-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.tabs__panel-title {
  font-family: 'Geist', sans-serif;
  font-weight: 500;
  font-size: clamp(1.5rem, 1rem + 1.5vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--color-bg-light);
}

.tabs__panel-text p {
  font-size: var(--fs-body-lg);
  line-height: 1.6;
  color: rgba(243, 245, 248, 0.78);
}

.tabs__panel-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: var(--space-md) 0;
  border-top: 1px solid rgba(243, 245, 248, 0.12);
  border-bottom: 1px solid rgba(243, 245, 248, 0.12);
}

.tabs__panel-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--color-bg-light);
  line-height: 1.5;
}

.tabs__panel-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 1.5px;
  background: var(--color-green-glow);
}

.tabs__panel-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  align-self: flex-start;
  font-family: 'Geist', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-green-glow);
  padding-block: 0.5rem;
  border-bottom: 1.5px solid var(--color-green-glow);
  transition: gap 0.3s ease;
}

.tabs__panel-cta:hover {
  gap: var(--space-sm);
}

.tabs__panel-figure {
  margin: 0;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.4);
  border-left: 1px solid rgba(243, 245, 248, 0.06);
}

.tabs__panel-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.92);
}

/* ---------- Toleranz-Skala ---------- */

.tolerance-scale {
  margin: 0;
  padding: var(--space-md) 0 var(--space-sm);
}

.tolerance-scale__caption {
  font-family: 'Geist Mono', monospace;
  font-size: var(--fs-mono-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(243, 245, 248, 0.5);
  margin-bottom: var(--space-md);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.tolerance-scale__caption::before {
  content: '';
  width: 20px;
  height: 1px;
  background: currentColor;
}

.tolerance-scale__ruler {
  position: relative;
  height: 60px;
}

/* Lineal-Strich mit Tick-Marks */
.tolerance-scale__track {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background:
    repeating-linear-gradient(
      to right,
      rgba(243, 245, 248, 0.18) 0,
      rgba(243, 245, 248, 0.18) 1px,
      transparent 1px,
      transparent 20px
    ),
    rgba(243, 245, 248, 0.25);
}

.tolerance-scale__track::before,
.tolerance-scale__track::after {
  content: '';
  position: absolute;
  top: -8px;
  width: 1px;
  height: 17px;
  background: rgba(243, 245, 248, 0.4);
}

.tolerance-scale__track::before { left: 0; }
.tolerance-scale__track::after { right: 0; }

/* Zonen — markieren Toleranz-Bereich */
.tolerance-scale__zone {
  position: absolute;
  top: 50%;
  left: var(--start);
  width: calc(var(--end) - var(--start));
  height: 6px;
  transform: translateY(-50%);
  border-radius: 999px;
}

.tolerance-scale__zone-label {
  position: absolute;
  font-family: 'Geist Mono', monospace;
  font-size: var(--fs-mono-xs);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

/* Branchenstandard — gedaempftes Rot, breiter Bereich */
.tolerance-scale__zone--industry {
  background: rgba(176, 60, 47, 0.28);
  border: 1px solid rgba(176, 60, 47, 0.5);
}

.tolerance-scale__zone--industry .tolerance-scale__zone-label {
  top: 14px;
  left: 0;
  color: rgba(255, 178, 168, 0.85);
}

/* VIFTECH — Brand-Gruen, schmaler Bereich */
.tolerance-scale__zone--viftech {
  background: var(--color-green-glow);
  box-shadow: 0 0 16px rgba(28, 138, 62, 0.7);
  height: 8px;
  z-index: 1;
}

.tolerance-scale__zone--viftech .tolerance-scale__zone-label {
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-bg-light);
  font-weight: 600;
}

/* Mittel-Anker (0-Punkt) */
.tolerance-scale__center {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 22px;
  transform: translate(-50%, -50%);
  background: var(--color-green-glow);
  border-radius: 1px;
}

@media (max-width: 920px) {
  .tabs {
    grid-template-columns: 1fr;
  }
  .tabs__list {
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(243, 245, 248, 0.1);
    scrollbar-width: thin;
    /* Snap-Scroll fuer angenehmeres Tab-Wechseln */
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }
  .tabs__tab {
    flex-shrink: 0;
    min-width: 180px;
    min-height: 56px; /* Tap-Target */
    border-bottom: 0;
    border-right: 1px solid rgba(243, 245, 248, 0.08);
    padding: var(--space-md) var(--space-md);
    scroll-snap-align: start;
  }
  .tabs__tab[aria-selected="true"]::before {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: auto;
    height: 3px;
  }
  .tabs__panel {
    padding: clamp(1.5rem, 5vw, 2.5rem) clamp(1.25rem, 4vw, 2rem);
  }
  .tabs__panel-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .tabs__panel-figure {
    aspect-ratio: 16 / 10;
    order: -1;
  }
  /* Toleranz-Skala kompakt halten */
  .tolerance-scale__ruler {
    height: 80px; /* mehr Platz fuer Labels untereinander */
  }
  .tolerance-scale__zone--industry .tolerance-scale__zone-label,
  .tolerance-scale__zone--viftech .tolerance-scale__zone-label {
    font-size: 0.625rem;
    letter-spacing: 0.04em;
  }
}

@media (max-width: 540px) {
  /* Workflow-Strip: bleibt 2-spaltig, aber bisschen mehr Luft */
  .workflow-strip {
    padding: var(--space-md) 0;
    gap: var(--space-md);
  }
  .workflow-strip li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
  }
}